System and method for attaching a wall to a building structure
An attachment member formed from sheet material configured to connect a wall to a curved roof of a building structure. The attachment member includes at least two segments: a first segment having a flat center portion and a pair of walls extending perpendicular to the center portion in cross section, the pair of walls defining a recess oriented in a direction perpendicular to the center portion, wherein the recess is adapted to accommodate a portion of a wall of a building structure; and a second segment extending from one of the walls of the first segment, the second segment being oriented in a same plane as the flat center portion of the first segment in cross section, the second segment including a longitudinal rib, the longitudinal rib protruding in cross section from the second segment, the longitudinal rib being adapted to mate with a rib of a curved building panel. Building structures made using such attachment members and an attachment member forming system are also described.
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1. Field of the Disclosure
The present disclosure relates to attachment members made from sheet materials for connecting walls to building structures, building structures made using such attachment members, and an attachment member forming system for fabricating attachment members to connect walls to building structures.
2. Background Information
Conventional methods are known in the art for erecting building structures made of sheet material building panels, e.g., galvanized steel sheet metal. The roof of such building structures can be formed from interconnected arched building panels attached side-by-side and the end walls of the building structures can be formed from substantially flat building panels or other suitable materials. The panels are interconnected by placing them adjacent one another and forming a sealed joint where the edges of the panels overlap. As a result, the length of the building increases with the number of interconnected panels forming the roof and the width of each panel. The width of the building, on the other hand, is a function of the length of each panel. Thus, the overall size of the building is dependent upon the dimensions of each panel and the total number thereof.
In conventional building structures, the end walls are typically connected to a single arched building panel at the outermost edge of the roof. However, the present inventors have observed that attaching the end walls to the outer edge of a single building panel in this manner forms a structurally weak joint that may not be suitable for certain building structures. In particular, the present inventors have observed that this type of joint may be subject to buckling in some areas and that such buckled areas can significantly reduce the strength of the joint and the structural integrity of the building structure. For example, as the size of each panel forming the roof increases, so does its weight. Because weight is a gravitational force, which imparts a moment upon structures, as the width and length of each panel increases, the panel is subject to greater moments that can cause failure of this joint.
SUMMARYAccording to an exemplary aspect, a system for forming an attachment member for connecting a wall to a curved roof of a building structure is described. The system includes a support structure and a cutting assembly supported by the support structure configured to receive sheet material wherein a plane of the sheet material is oriented in a substantially vertical orientation, the cutting assembly including a slitter to cut the sheet material along a feed direction of the sheet material into first and second portions of sheet material, the slitter having guides to support the first and second portions of sheet material in the substantially vertical orientation, the guides directing the first portion of sheet material in a first direction and directing the second portion of sheet material in a second direction different from the first direction. The system also includes a forming assembly supported by the support structure. The forming assembly is configured to receive sheet material from the cutting assembly and includes a frame, and multiple rollers supported by the frame, the multiple rollers arranged to impact the first portion of sheet material and change a cross-sectional shape of the first portion of sheet material as the first portion of sheet material passes along the multiple rollers in the feed direction to form an attachment member, the attachment member having a plurality of segments in cross section in a plane perpendicular to the feed direction including a first flat segment in cross section and a second segment extending perpendicularly in cross section from the first segment.
According to another aspect, an attachment member formed from sheet material is described. The attachment member is configured to connect a wall to a curved roof of a building structure, the curved roof being formed from a plurality of curved building panels, the attachment member being curved in a longitudinal direction and having a shape in cross section in a plane perpendicular to the longitudinal direction. The attachment member includes a first segment having a flat center portion and a pair of walls extending perpendicular to the center portion in cross section, the pair of walls defining a recess oriented in a direction perpendicular to the center portion, wherein the recess is adapted to accommodate a portion of a wall of a building structure. The attachment member further includes a second segment extending from one of the walls of the first segment, the second segment being oriented in a same plane as the flat center portion of the first segment in cross section, the second segment including a longitudinal rib, the longitudinal rib protruding in cross section from the second segment, the longitudinal rib being adapted to mate with a rib of a curved building panel.
According to another aspect, a building structure is described. The building structure comprises a curved roof formed from a plurality of interconnected building panels, each building panel extending in a longitudinal direction and having a shape in cross section in a plane perpendicular to the longitudinal direction, wherein each building panel includes a central portion having a rib in cross section. The building structure also includes a wall. And further, the building structure includes an attachment member formed from sheet material attaching the wall to the curved roof. The attachment member comprises a first segment having a flat center portion and a pair of walls extending perpendicular to the center portion in cross section, the pair of walls defining a recess oriented in a direction perpendicular to the center portion, wherein the recess is adapted to accommodate a portion of a wall of a building structure; a second segment extending from one of the walls of the first segment, the second segment being oriented in a same plane as the flat center portion of the first segment in cross section, the second segment including a longitudinal rib, the longitudinal rib protruding in cross section from the second segment, the longitudinal rib being adapted to mate with a rib of a curved building panel; and wherein the flat center portion of the first segment is connected to a first building panel of the curved roof, and the longitudinal rib of the second segment is connected to a rib of a second building panel of the curved roof.
According to yet another aspect, a method of forming an attachment member for connecting a wall to a building structure is described. The method comprises cutting sheet material from a source of sheet material in a feed direction into first and second portions of sheet material, a plane of the sheet material being oriented in a vertical orientation; supporting the first and second portions of sheet material in the vertical orientation with guides such that the first portion of sheet material is directed in a first direction and the second portion of sheet material is directed in a second direction different from the first direction; translating the first portion of sheet material through multiple rollers, the multiple rollers arranged to impact the first portion of sheet material as the first portion passes along the multiple rollers in a feed direction to form an attachment member, the attachment member having a plurality of segments in cross section in a plane perpendicular to the feed direction including a first flat segment in cross section and a second segment extending perpendicularly in cross section from the first segment; and crimping the second segment of the attachment member to impart a longitudinal curve to the attachment member along a length of the attachment member.
According to still another aspect, a system for forming an attachment member for connecting a wall to a curved roof of a building structure is described. The system includes a support structure and a cutting assembly supported by the support structure configured to receive sheet material, the cutting assembly including a slitter to cut the sheet material along a feed direction of the sheet material into first and second portions of sheet material, the slitter having guides to support the first and second portions of sheet material, the guides directing the first portion of sheet material in a first direction and directing the second portion of sheet material in a second direction different from the first direction. The system further includes a forming assembly supported by the support structure that is configured to receive sheet material from the cutting assembly. The forming assembly includes a frame, and multiple rollers supported by the frame, the multiple rollers arranged to impact the first portion of sheet material and change a cross-sectional shape of the first portion of sheet material as the first portion of sheet material passes along the multiple rollers in the feed direction to form an attachment member, the attachment member having a plurality of segments in cross section in a plane perpendicular to the feed direction including a first flat segment in cross section and a second segment extending perpendicularly in cross section from the first segment. The forming assembly is configured to form an attachment member including: a first segment having a flat center portion and a pair of walls extending perpendicular to the center portion in cross section, the pair of walls defining a recess oriented in a direction perpendicular to the center portion, wherein the recess is adapted to accommodate a portion of a wall of a building structure; and a second segment extending from one of the walls of the first segment, the second segment being oriented in a same plane as the flat center portion of the first segment in cross section, the second segment including a longitudinal rib, the longitudinal rib protruding in cross section from the second segment, the longitudinal rib being adapted to mate with a rib of a curved building panel.
These and other featured aspects and advantage for the present disclosure will become better understood with regard to the following description, appended claims, and accompanying drawings.
Building structures manufactured using building panels formed from sheet material can be constructed in a variety of configurations. For example,
However, the present inventors have noted that the configuration of conventional attachment members, i.e., attachment members attached to the outermost edge of a curved building panel, has disadvantages. For example, the conventional structure lacks stability due to the fact that it is attached to the edge of the building panel and can be subject to torsion that can cause buckling or failure. As shown in
Exemplary building panels and attachment members described herein may be formed from sheet material, such as, for example, structural steel sheet material ranging from about 0.035 inches to about 0.080 inches in thickness. These building panels and attachment members can be formed from other sheet materials as well, such as other types of steel, galvalume, zincalume, aluminum, or other building material that is suitable for construction. The thickness of the building panels and attachment members may generally range from about 0.035 inches to about 0.080 inches in thickness (±10%), depending on the type of sheet material used. Of course, the building panels and attachment members may be formed using other thicknesses and using other sheet building materials so long as the sheet materials possess suitable engineering properties of strength, toughness, workability, etc. It should also be noted that the building panels and the attachment members need not be made of the same material.
Exemplary building panels that may be used with exemplary attachment members as described herein will now be described with reference to
As shown in
The exemplary building panel 10 illustrated in
Nested between the perpendicular walls of the first portion 78 and the second portion 80 is a sealing element 82 (e.g., neoprene, or any other suitable material such as rubber, plastics and other polymer and/or foam materials as will be appreciated by one of ordinary skill in the art). The sealing element 82 seals the top portion of the end wall 84 to provide a moisture barrier between the outside and inside of the building structure. The end wall 84 of a building structure in accordance with exemplary embodiments is typically substantially planar in shape and may be composed of interconnected building panels made from sheet material, concrete cinderblocks, wood, or any other suitable building material as would be known to one of ordinary skill in the art.
Advantageously, exemplary building structures manufactured using attachment members as described in exemplary embodiments herein may not suffer from the weakness of conventional techniques of attaching end walls to the roof because they may be attached to the bottom portion of two building panels. This configuration can provide additional rigidity and strength to the joint because it provides a triangle-shaped support structure in cross section between the roof and the end wall that is more resistant to stresses and bending moments. For example, as shown in
In addition, attaching the end walls between the bottom portion of two building panels allows advantageous configurations that were not readily achievable with conventional techniques. For example, since the end wall in exemplary embodiments of the present disclosure does not need to be attached to the edge of a roof panel, the end wall can be inset from the edge of the curved roof by any desired distance. The end wall can be inset by the width of one or two building panels to form an eave, or inset by a greater distance to provide an open yet covered area (e.g., a shelter or sun shade area). Moreover, walls can also be attached interior to the building structure, allowing contractors to construct buildings with internal partitions.
The exemplary attachment member 76 is formed from two portions: the first portion 78 having an L-shape in cross section and a second portion 80 also having an L-shape in cross section. The first portion 78 includes a channel wall 92 at one end and a longitudinal rib 96 at the other end (shown as an arcuate portion). Similarly, the second portion 80 includes the channel wall 90, at one end and a longitudinal rib 98 at the other end. When the second portion 80 is mated to the first portion 78, the attachment member 76 has a first segment that forms a channel for accommodating an end wall and a second segment including a longitudinal rib for mating with the rib of a first curved building panel of the roof.
The first segment of the exemplary attachment member 76 is formed from three components: (i) the flat center portion 93 (i.e., the portion of the first portion 78 extending past the wall of the second portion 80), (ii) the perpendicular channel wall 90 of the second portion 80, and (iii) the perpendicular channel wall 92 of the first portion 78, which together define a recess 94 oriented in a direction perpendicular to the center portion 93. The recess 94 is designed to accommodate the upper portion of an end wall 84 and may include the sealing member 82 as illustrated in
As illustrated, the components of the exemplary system 150 preferably support the sheet material in a substantially vertical orientation when in use (wherein substantially vertical is defined herein as any orientation within a few degrees, e.g., 1°-2° or less, of an orientation parallel to the axis of gravitational force after the support structure 152 has been leveled) and translate the sheet material in a feed direction F. Advantageously, arranging the components to work the sheet material in a vertical orientation may allow the components to take up less space than a horizontal arrangement, thereby facilitating transportation of all the components on a single trailer. However, it is explicitly contemplated that embodiments of the present disclosure also can include one or more components configured in a horizontal arrangement. For example, in such embodiments the coil holder 154 could have a horizontal axis of rotation and feed sheet material to a horizontally oriented drive unit 156, which would then feed horizontally oriented sheet material to the subsequent components of the system 150.
Proximate the drive unit 156 and supported on the support structure 152 is a cutting assembly that includes a shearing assembly 158 and a slitting assembly 160. The cutting assembly cuts the sheet material to a shape (typically rectangular with longer dimensions along the feed direction F) and size suitable for forming the desired attachment members in accordance with exemplary embodiments. The shearing assembly 158 cuts the sheet material in a direction perpendicular to the feed direction F, i.e., a vertical direction as shown in
The forming assembly 162 includes multiple hydraulically actuated rollers designed to form the sheet material into the desired cross-sectional shape (e.g., a C-shape or L-shape in cross-section). However, it should be noted that they could be driven in any suitable manner such as, for example, electrically, manually or pneumatically. Once the attachment member has been formed to have the desired cross-sectional shape, it can then be fed back through the curving assembly 164, which includes crimping rollers for imparting a longitudinal curve to the attachment member. The rear of the curving assembly 164 includes guides to direct sheet material from the cutting assembly to the forming assembly 162 and the exemplary curving assembly 164 is mounted on a track so that it can be moved on the support structure perpendicular to the feed direction F. Advantageously, this configuration provides the capability for stowing the curving assembly inside a trailer to facilitate transportation, and for extending the curving assembly to provide a track from the cutting assembly to the forming assembly 162.
The support structure 152 also includes a controller 166 that may be, for example, a programmable logic controller (PLC) or a microprocessor based controller used for controlling the operations of the components of the attachment member forming system 150. In addition, a power supply, for example, a diesel generator 168, can also be provided on the support structure 152 to power the various functions of the system 150. In addition, in exemplary embodiments a building panel forming machine may also be included on the support structure 152. For example, a building panel forming machine as described in U.S. Pat. No. 5,249,445 or 5,359,871 or in US Patent Application Publication No. 2003/0000156 could be supported on a portion of the support structure 152 that is not occupied by the attachment member forming system 150.
The individual components of an exemplary system for forming an attachment member for connecting an end wall to a curved roof of a building structure will now be described with reference to specific figures.
As shown by comparing
Referring again to the example of
The radial members 174a, 174b preferably are shaped to have sloped upper edges as shown in
The dimensions of the conical support members 171 can be selected based upon the expected sizes of coils of sheet material anticipated. A typical coil 155 may have, for example, an inner diameter of about 24 inches, an outer diameter of about 40 inches, and a height of about 36 inches. Generally, the length of each conical support roller 171 should be at least as large as the difference between the inner and outer radii of the coil 155, i.e., the length of each conical support roller 171 should be at least as large as the radial width of the sheet material coiled on the coil 155. To accommodate typical sized coils of sheet material, the conical support rollers 106 can be about 12.3 inches long with a narrow-end diameter of about 2.25 inches and a wide-end diameter of about 5.3 inches. The narrow end of the support roller 171 can be positioned at a distance of about 9 inches from the rotation axis B of the rotatable spindle 172 (i.e., from the cylindrical axis of the coil 155), and the wide end of the support roller 171 can be positioned at a distance of about 12.3 inches from the rotation axis B. The wide-end and narrow-end diameters of the conical support rollers 171 should be chosen according to the relationship R1/R2=A1/A2, where A1 is a diameter of the roller 171 near its narrow end, A2 is a diameter of the roller 171 near its wide end, R1 is a distance from the rotation axis B to a contact point on the roller 171 at diameter A1, and R2 is a distance from the rotation axis B to a contact point on the roller 171 at diameter A2, such as shown in
Choices for the materials used in fabricating various components of the decoiler 154 and the other devices described herein can be made based upon the expected size and weight of the coils and sheet material to be accommodated. For example, as noted above, a typical coil for use in metal building fabrication may have an inner diameter of, for example, about 20 inches (i.e., the diameter of the hollow core is about 20 inches), an outer diameter of about 40 inches, and a height of about 36 inches. The weight of such coils may range from about 6000 to 9000 pounds typically, for example. The materials used for fabricating various components according to the present disclosure should be chosen to accommodate the weight of the coils and sheet material being used. For example, frame pieces may be made from stainless steel or aluminum-alloy plates, e.g., 0.5-0.75 inches in thickness, support rollers made be made from stainless steel or polyurethane, connecting rods and shafts may be made from stainless steel or hardened steel, bearings and gears may be made from hardened steel, etc.
The coil holder 154 may include a tensioning mechanism for opposing a rotation of the rotating member so as to permit tensioning of the sheet material as it is fed from the coil. For example, the tensioning mechanism may be provided by a rotating disk attached to the rotating member that rotates with the rotating member, against which a brake shoe or other device may be pressed so as to provided a controllable frictional force against the disk. The coil holder 154 may also include a radially adjustable clamping mechanism (e.g., a vertically oriented roller) that can be moved radially inward and outward and positioned against the outermost sheet of the coil 176 to prevent the coil from unwinding when its holding strap is released. The coil holder 154 may also include a drive mechanism to drive a pair of the support rollers 171 to rotate the coil, e.g., to facilitate feeding sheet material from the coil 155 into the drive unit 156. In addition, the coil holder 154 may be arranged on an adjustable platform that can be attached to a side of the support structure 152 so as to reposition the coil holder 154 (e.g., rotate the vertical rotation axis by about 90 degrees) to put it in a non-use position when the overall system 150 is being transported. An exemplary decoiling system that can be used for the coil holder 154 is disclosed in U.S. patent application Ser. No. ______ (Attorney Docket No. 011925-0084-999) entitled “Vertical Sheet Metal Decoiling Systems and Methods” filed even date herewith, the entire contents of which are incorporated herein by reference.
In addition to sheet material supplied from the exemplary coil holder 154, the drive unit 156 may also receive and translate scrap sheet metal that may be available at the job site. For example, if suitable sheet material has been previously slit as described with reference to the exemplary slitting assembly 160 below, there may be sufficient scrap sheet material to produce additional attachment members. This scrap sheet material can be fed into the drive unit 156 by hand or by any other suitable mechanism.
The present inventors have found that it is desirable to support the upper portion of the sheet material closely after slitting it (i.e., cutting it into upper and lower portions in the feed direction), to prevent the upper portion from bending downward under gravitational force against the lower portion, and to prevent binding of the slitting assembly 160. This also prevents damage to the slitting members 226 that could be caused by the binding of the sheet material in the slitting assembly 160. Accordingly, exemplary embodiments of the present disclosure include vertical rollers 230 (e.g., rollers with a v-shaped or u-shaped recesses) that support the sheet material vertically shortly after it is slit by the slitting members 226. These vertical rollers 230 keep the upper portion (i.e., the scrap metal) of the sheet material from falling down and interfering with the lower portion of the sheet material. The vertical guide rollers 230 are supported by supporting members 238 and attached to an adjustable pedestal 216, which is movably mounted to the frame 210. The adjustable pedestal 216 is mounted on a track and can be moved up or down by handwheel 218 via a set of linkages. This adjustability allows the slitting assembly 160 to cut varying cross sectional widths of sheet material suitable for varying sizes of attachment members.
As can be seen, the upper portion of sheet material passes along a different path than the lower portion of sheet material. The lower portion passes along fixed guiding members 212 and vertical guiding rollers 214, which are both fixedly mounted to the frame 210. The lower portion is also supported by vertical guide rollers 231 (e.g., rollers with a v-shaped or u-shaped recesses) at the upper end. Similar to the vertical guide rollers 230, the vertical guide rollers 231 are also mounted to the adjustable pedestal 216 to accommodate varying cross sectional widths of sheet material suitable for varying sizes of attachment members.
After the sheet material passes the inlet guide assembly 241 in the feed direction F, it passes between a first pair of shafts: a front shaft 246, and a rear shaft 247. The front shaft 246, and rear shaft 247 are attached to the frame 240 via bearings that allow the shafts to rotate. A concave roller 248 is at the upper end of the front shaft 246, and a complementary convex roller 249 is at the upper end of the rear shaft 247; both rollers being supported in position by an adjustable platform 263. When sheet material passes between the concave roller 248 and the convex roller 249, these rollers impact the sheet material and form a longitudinal rib therein. Also, attached to the bottom end of the front shaft 246 is a conical roller 250 having an angle approximately 15° from vertical; and attached to the bottom of the rear shaft 247 is a complementary conical roller 251. When the sheet material passes between these conical rollers 250, 251, these rollers impact the sheet material and begin to bend the sheet material to provide a first bend to ultimately obtain a cross sectional L shape.
Next the sheet material passes between a second pair of shafts: front shaft 252 and a rear shaft 253. The front shaft 252 extends vertically from the base of the frame 240 to approximately the center of the frame, and is supported by adjustable platform 267. Attached to the upper portion of the front shaft 252 is an upper conical roller 254 having an angle approximately 45° from vertical. The upper conical roller 254 may be removed and replaced with a cylindrical roller 258 as explained further below to form the sheet material into different shapes. Attached to the middle portion of the rear shaft 253, and also supported by adjustable platform 267 is a complementary conical roller 255, also removable, designed to mate with the upper conical roller 254.
As illustrated in
The upper conical roller 254 may be loosened and removed via the adjustment mechanism 260 (e.g., a frictional locking mechanism), which uses a hand-crank mechanism. The upper conical roller 254 may be replaced with a cylindrical roller 258. The replacement cylindrical roller 258 is used when the forming assembly is configured to produce L-shaped portions of sheet material in cross section. As such, when the upper conical roller 254 is replaced with the cylindrical roller 258, the rollers 255, 258 impart no cross section shape to the sheet material and instead act merely as horizontal guides that serve to translate sheet material through the forming assembly. Attached to the bottom end of the front shaft 252 is a conical roller 256 having an angle approximately 30° from vertical; and attached to the bottom of the rear shaft 253 is a complementary conical roller 257. When the sheet material passes between these conical rollers 256, 257, these rollers impact the sheet material and further bend the sheet material to obtain more of a cross sectional L shape. In other words, as described further below, the conical roller 254 is used when the forming assembly 162 is used to create a C-shaped member from the sheet material (e.g., a C-shaped member with two 90 degree bends), and the cylindrical roller 258 is used when the forming assembly 162 is used to create an L-shaped member from the sheet material.
After the sheet material passes between the second pair of shafts 252, 253 in the feed direction F, it passes between a third pair of shafts: a front shaft 268, and a rear shaft 269. The front shaft 268, and rear shaft 269 are attached to the frame 240 via bearings that allow the shafts to rotate. A concave roller 270 is at the upper end of the front shaft 268, and a complementary convex roller 271 is at the upper end of the rear shaft 269, both rollers being supported in position by the adjustable platform 263. When sheet material passes between the concave roller 270 and the convex roller 271, these rollers further impact the sheet material to further form the longitudinal rib therein. Also, attached to the bottom end of the front shaft 268 is a conical roller 272 having an angle approximately 45° from vertical; and attached to the bottom of the rear shaft 269 is a complementary conical roller 273. When the sheet material passes between these conical rollers 272, 273, these rollers impact the sheet material and further bend the sheet material to obtain more of a cross sectional L shape.
Next the sheet material passes between a fourth pair of shafts: front shaft 274 and a rear shaft 275. The front shaft 274 extends vertically from the base of the frame 240 to approximately the center of the frame, and is supported by adjustable platform 267. Attached to the upper portion of the front shaft 274 is an upper conical roller 276 having an angle approximately 75° from vertical. The upper conical roller 276 may be removed and replaced with a cylindrical roller 280 as explained further below to form the sheet material into different shapes. Attached to the middle portion of the rear shaft 275, and also supported by adjustable platform 267 is a complementary conical roller 277 designed to mate with the upper conical roller 276.
As illustrated in
The upper conical roller 276 may be loosened and removed via the adjustment mechanism 261 (e.g., a frictional locking mechanism), which uses a hand-crank mechanism. The upper conical roller 276 may be replaced with a cylindrical roller 280. The replacement cylindrical roller 280 is used when the forming assembly is configured to produce L-shaped portions of sheet material in cross section. As such, when the upper conical roller 276 is replaced with the cylindrical roller 280, the rollers 277, 280 impart no cross section shape to the sheet material and instead act merely as horizontal guides that serve to translate sheet material through the forming assembly. Attached to the bottom end of the front shaft 274 is a conical roller 278 having an angle approximately 60° from vertical; and attached to the bottom of the rear shaft 275 is a complementary conical roller 279. When the sheet material passes between these conical rollers 278, 279, these rollers impact the sheet material and further bend the sheet material to obtain more of a cross sectional L shape.
After the sheet material passes between the fourth pair of shafts 274, 275 in the feed direction F, it passes between a fifth pair of shafts: a front shaft 283, and a rear shaft 289. The front shaft 283, and rear shaft 289 are attached to the frame 240 via bearings that allow the shafts to rotate. A concave roller 285 is at the upper end of the front shaft 283, and a complementary convex roller 286 is at the upper end of the rear shaft 289, both rollers being supported in position by the adjustable platform 263. When sheet material passes between the concave roller 285 and the convex roller 286, these rollers further impact the sheet material to further form the longitudinal rib therein. Also, attached to the bottom end of the front shaft 283 is a conical roller 287 having an angle approximately 75° from vertical; and attached to the bottom of the rear shaft 289 is a complementary conical roller 288. When the sheet material passes between these conical rollers 287, 288, these rollers impact the sheet material and further bend the sheet material to obtain more of a cross sectional L shape.
Finally, the sheet material passes between a sixth pair of shafts: a front shaft 286, and a rear shaft 290. The front shaft 286, and rear shaft 290 are attached to the frame 240 via bearings that allow the shafts to rotate. A concave roller 291 is at the upper end of the front shaft 286, and a complementary convex roller 292 is at the upper end of the rear shaft 290, both rollers being supported in position by the adjustable platform 263. When sheet material passes between the concave roller 286 and the convex roller 292, these rollers further impact the sheet material to further form the longitudinal rib therein. Also, attached to the bottom end of the front shaft 286 is a cylindrical roller 293; and attached to the bottom of the rear shaft 290 is a complementary cylindrical roller 294. When the sheet material passes between these cylindrical rollers 293, 294, these rollers impact the sheet material and complete bending the sheet material into the desired a cross sectional L shape.
Furthermore, attached to approximately the middle of the front shaft 286 is a cylindrical roller 259; and attached to approximately the middle of the rear shaft 290 is a complementary cylindrical roller 265. As illustrated in
As discussed above, the conical rollers 254, 255, 276, 277 are supported on the adjustable platform 267, which is adjustable vertically via the adjustment mechanism 282 that includes a socket configured to receive a hand-crank attached via a set of linkages to move the adjustable platform 267 up and down within the frame. This feature allows the forming assembly 162 to accommodate a variety of sizes of attachment members.
In addition, the rollers 248, 249, 270, 271, 285, 286, 291, 292 are supported by an adjustable platform 263 that can be adjusted vertically by way of an adjustment mechanism 262. This adjustment mechanism 262 includes a socket configured to receive a hand-crank attached via a set of linkages to move the adjustable platform 267 up and down within the frame 240.
At the outlet of the forming assembly 162 is a set of guide rollers, a lower guide roller 264, which is fixed to the frame, and a set of upper guide rollers 266 that are adjustable and/or removable from the frame to accommodate various sizes of attachment members after they have received the desired cross sectional shape.
In the illustrated exemplary embodiment, the shafts and rollers in the forming assembly 162 are driven by a hydraulic motor. However, it should be noted that they could be driven in any suitable manner such as, for example, electrically, manually or pneumatically. Hydraulic assembly 244 is coupled to a drive gear 295, which is in turn engaged with the gears attached to the shafts at the top portion of the frame. As illustrated, the large gears 242 are attached to the top of the rear shafts 247, 253, 269, 275, 289, 290. These large gears 242 are in turn coupled to each other by way of coupling gears 296. Furthermore, the large gears 242 engage with and drive small gears 297 that are attached to the front shafts 246, 268, 283, 286. As can be seen, the front shafts 252, 274 do not extend fully to the top of the frame 240. Accordingly, the rear shafts 253, 257, which do extend fully from the top to the bottom of the frame, have gears attached to the bottom that engage with small gears 298 attached to the bottom portion of front shafts 252, 274. The small gears 298 drive these front shafts.
Referring now to
The curving assembly 164 also includes an upper crimping assembly 318 attached to a pair of crimping rollers 330, 332, which also have an adjustable offset to provide different longitudinal curves to an attachment member. The spacing between the crimping rollers 330, 332 is adjusted by way of handwheel 322 that is linked via a gear assembly to the upper crimping assembly 318. By having both an upper crimping assembly 318 and a lower crimping assembly 316, the curving assembly can crimp both opposing sides of a C-shaped attachment member to provide the longitudinal curve.
In addition, the spacing between the lower crimping assembly 316 and the upper crimping assembly 318 can be adjusted by way of handwheel 324. This adjustment allows the curving assembly 164 to accommodate various sizes of attachment members. It should be noted that to accommodate attachment members having an L-shape in cross section, the upper crimping assembly 318 can be moved sufficiently up into the housing 304 to avoid impacting any portion of the attachment member as it translates through. the curving assembly. The lower crimping assembly 316 then crimps one side of the L-shaped attachment member to provide the longitudinal curve. The crimping rollers 312, 314, 330, 332 can be driven by a hydraulic motor 328, which imparts driving force to these rollers. The hydraulic assembly 328 is controlled by controller 326 (e.g., a PLC) to provide an on-off capability.
Also attached to the base 300 of the curving assembly 164 is a guide assembly 306 having an upper portion and a lower portion, where the upper portion directs scrap metal outward so that it can be collected by workers, and the lower portion directing sections of sheet material to be formed into attachment members to the forming assembly 162. The upper portion of the guide assembly comprises an upper guide 308 (e.g., curved brackets with a space therebetween through which the sheet material can pass) that is curved to direct the scrap metal outward, which is attached to shafts 336 that allow the upper guide 308 to be adjusted vertically to accommodate varying sizes of scrap metal. Similarly, the lower portion of the guide assembly 306 comprises lower guides 310 (e.g., straight brackets with a space therebetween through which the sheet material can pass) mounted on shafts 334 that allow these lower guides to be adjusted up and down to accommodate varying sizes of sheet material suitable to be formed into attachment members.
While the present invention has been described in terms of exemplary embodiments, it will be understood by those skilled in the art that various modifications can be made thereto without departing from the scope of the invention as set forth in the claims.
Claims
1. A system for forming an attachment member for connecting a wall to a curved roof of a building structure, the system comprising:
- a. a support structure;
- b. a cutting assembly supported by the support structure configured to receive sheet material wherein a plane of the sheet material is oriented in a substantially vertical orientation, the cutting assembly including a slitter to cut the sheet material along a feed direction of the sheet material into first and second portions of sheet material, the slitter having guides to support the first and second portions of sheet material in the substantially vertical orientation, the guides directing the first portion of sheet material in a first direction and directing the second portion of sheet material in a second direction different from the first direction; and
- c. a forming assembly supported by the support structure, the forming assembly being configured to receive sheet material from the cutting assembly and comprising: i. a frame, and ii. multiple rollers supported by the frame, the multiple rollers arranged to impact the first portion of sheet material and change a cross-sectional shape of the first portion of sheet material as the first portion of sheet material passes along the multiple rollers in the feed direction to form an attachment member, the attachment member having a plurality of segments in cross section in a plane perpendicular to the feed direction including a first flat segment in cross section and a second segment extending perpendicularly in cross section from the first segment.
2. The system of claim 1 further comprising:
- d. a curving assembly supported on the support structure for curving the attachment member, the curving assembly comprising: a first pair of crimping rollers offset from one another and located within the curving assembly configured to receive the attachment member such that when the attachment member enters the curving assembly the second segment of the attachment member passes between said crimping rollers, wherein the first pair of crimping rollers is configured to crimp the second segment of the attachment member to impart a longitudinal curve to the attachment member along a length of the attachment member.
3. The system of claim 1, wherein the system is configured to form the attachment member such that the attachment member comprises:
- a. a first segment having a flat center portion and a pair of walls extending perpendicular to the center portion in cross section, the pair of walls defining a recess oriented in a direction perpendicular to the center portion, wherein the recess is adapted to accommodate a portion of a wall of a building structure;
- b. a second segment extending from one of the walls of the first segment, the second segment being oriented in a same plane as the flat center portion of the first segment in cross section, the second segment including a longitudinal rib, the longitudinal rib protruding in cross section from the second segment, the longitudinal rib being adapted to mate with a rib of a curved building panel.
4. The system of claim 1 wherein the multiple rollers comprises:
- a. an upper set of rollers attached to an adjustable platform mounted on a shaft; and
- b. a lower set of rollers;
- c. wherein a distance between the upper set of rollers and the lower set of rollers is adjustable such that attachment members of different sizes can be accommodated.
5. The system of claim 1 further comprising a building panel forming apparatus supported on the support structure.
6. The system of claim 1 further comprising a decoiler supported by the support structure configured to feed sheet material to the cutting assembly, wherein the decoiler is oriented vertically such that a rotation axis of the decoiler is parallel to a vertical direction.
7. The system of claim 6 further comprising a drive unit supported on the support structure proximate the decoiler and the cutting assembly, the drive unit configured to feed the sheet material from the decoiler to the cutting assembly.
8. The system of claim 1 wherein the curving assembly further comprises a second pair of crimping rollers offset from one another and offset from the first pair of crimping rollers, wherein a distance between the first pair of crimping rollers and the second pair of crimping rollers is adjustable to accommodate different sizes of attachment members.
9. The system of claim 1 wherein at least one of the rollers of the forming assembly is removable to form the attachment member into either an L-shape or C-shape in cross section.
10. The system of claim 1 wherein the curving assembly is mounted on a movable platform supported on the support structure and located between the cutting assemblyand the forming assembly.
11. An attachment member formed from sheet material configured to connect a wall to a curved roof of a building structure, the curved roof being formed from a plurality of curved building panels, the attachment member being curved in a longitudinal direction and having a shape in cross section in a plane perpendicular to the longitudinal direction, the attachment member comprising:
- a. a first segment having a flat center portion and a pair of walls extending perpendicular to the center portion in cross section, the pair of walls defining a recess oriented in a direction perpendicular to the center portion, wherein the recess is adapted to accommodate a portion of a wall of a building structure; and
- b. a second segment extending from one of the walls of the first segment, the second segment being oriented in a same plane as the flat center portion of the first segment in cross section, the second segment including a longitudinal rib, the longitudinal rib protruding in cross section from the second segment, the longitudinal rib being adapted to mate with a rib of a curved building panel.
12. The attachment member of claim 11 wherein the central portion of the curved building panel includes a rib in cross section, and wherein the longitudinal rib of the attachment member is adapted to mate with the rib of the building panel.
13. The attachment member of claim 11 wherein the attachment member is formed from two portions of sheet material.
14. The attachment member of claim 13, wherein the attachment member comprises:
- a. a first L-shaped portion in cross section, the first L-shaped member forming one of the walls of the first segment; and
- b. a second L-shaped portion in cross section forming the other wall of the first segment;
- c. wherein the first L-shaped portion is mated to the second L-shaped portion to form the first segment of the attachment member.
15. The attachment member of claim 13, wherein the attachment member comprises:
- a. an L-shaped portion in cross section; and
- b. a C-shaped portion in cross section;
- c. wherein the C-shaped portion is nested into the L-shaped portion to form the first segment of the attachment member.
16. The attachment member of claim 11 wherein the attachment member is formed from a single portion of sheet material.
17. The attachment member of claim 16 wherein the attachment member further comprises:
- a. a third segment extending from a wall opposite the second segment, the third segment being oriented in a same plane as the flat center portion of the first segment in cross section, the third segment including a second longitudinal rib; and
- b. the second longitudinal rib protruding in cross section from the third segment, the second longitudinal rib being adapted to mate with a rib of another curved building panel.
18. The attachment member of claim 11 wherein the sheet material comprises sheet metal having a thickness between about 0.035 inches and about 0.060 inches.
19. A building structure comprising:
- a. a curved roof formed from a plurality of interconnected building panels, each building panel extending in a longitudinal direction and having a shape in cross section in a plane perpendicular to the longitudinal direction, wherein each building panel includes a central portion having a rib in cross section;
- b. a wall; and
- c. an attachment member formed from sheet material attaching the wall to the curved roof, the attachment member comprising: i. a first segment having a flat center portion and a pair of walls extending perpendicular to the center portion in cross section, the pair of walls defining a recess oriented in a direction perpendicular to the center portion, wherein the recess is adapted to accommodate a portion of a wall of a building structure; ii. a second segment extending from one of the walls of the first segment, the second segment being oriented in a same plane as the flat center portion of the first segment in cross section, the second segment including a longitudinal rib, the longitudinal rib protruding in cross section from the second segment, the longitudinal rib being adapted to mate with a rib of a curved building panel; and iii. wherein the flat center portion of the first segment is connected to a first building panel of the curved roof, and the longitudinal rib of the second segment is connected to a rib of a second building panel of the curved roof.
20. The building structure of claim 19 wherein the wall is an exterior wall of the building structure.
21. The building structure of claim 19 wherein the wall is inset from an edge of the curved roof by greater than the width of one of the interconnected building panels to provide an open yet covered area.
22. The building structure of claim 19 wherein the wall is an interior wall of the building structure.
23. The building structure of claim 19 wherein the wall is formed from a set of interconnected building panels.
24. The building structure of claim 19 wherein the wall is formed from a set of concrete blocks.
25. A method of forming an attachment member for connecting a wall to a building structure, the method comprising:
- a. cutting sheet material from a source of sheet material in a feed direction into first and second portions of sheet material, wherein a plane of the sheet material is oriented in a substantially vertical orientation;
- b. supporting the first and second portions of sheet material in the vertical orientation with guides such that the first portion of sheet material is directed in a first direction and the second portion of sheet material is directed in a second direction different from the first direction;
- c. translating the first portion of sheet material through multiple rollers, the multiple rollers arranged to impact the first portion of sheet material as the first portion passes along the multiple rollers in a feed direction to form an attachment member, the attachment member having a plurality of segments in cross section in a plane perpendicular to the feed direction including a first flat segment in cross section and a second segment extending perpendicularly in cross section from the first segment; and
- d. crimping the second segment of the attachment member to impart a longitudinal curve to the attachment member along a length of the attachment member.
26. The method of claim 25 wherein the attachment member comprises:
- a. a first segment having a flat center portion and a pair of walls extending perpendicular to the center portion in cross section, the pair of walls defining a recess oriented in a direction perpendicular to the center portion, wherein the recess is adapted to accommodate a portion of a wall of a building structure; and
- b. a second segment extending from one of the walls of the first segment, the second segment being oriented in a same plane as the flat center portion of the first segment in cross section, the second segment including a longitudinal rib, the longitudinal rib protruding in cross section from the second segment, the longitudinal rib being adapted to mate with a rib of a curved building panel.
27. The method of claim 25 further comprising the steps of:
- a. attaching a first segment of the attachment member to a first building panel of a curved roof;
- b. attaching a second segment of the attachment member to a second building panel of the curved roof, wherein the second building panel is adjacent the first building panel; and
- c. attaching the attachment member to a portion of a wall of a building structure.
28. A system for forming an attachment member for connecting a wall to a curved roof of a building structure, the system comprising:
- a. a support structure;
- b. a cutting assembly supported by the support structure configured to receive sheet material, the cutting assembly including a slitter to cut the sheet material along a feed direction of the sheet material into first and second portions of sheet material, the slitter having guides to support the first and second portions of sheet material, the guides directing the first portion of sheet material in a first direction and directing the second portion of sheet material in a second direction different from the first direction; and
- c. a forming assembly supported by the support structure, the forming assembly being configured to receive sheet material from the cutting assembly and comprising: i. a frame, and ii. multiple rollers supported by the frame, the multiple rollers arranged to impact the first portion of sheet material and change a cross-sectional shape of the first portion of sheet material as the first portion of sheet material passes along the multiple rollers in the feed direction to form an attachment member, the attachment member having a plurality of segments in cross section in a plane perpendicular to the feed direction including a first flat segment in cross section and a second segment extending perpendicularly in cross section from the first segment;
- wherein the forming assembly is configured to form the attachment member such that the attachment member comprises: a first segment having a flat center portion and a pair of walls extending perpendicular to the center portion in cross section, the pair of walls defining a recess oriented in a direction perpendicular to the center portion, wherein the recess is adapted to accommodate a portion of a wall of a building structure; a second segment extending from one of the walls of the first segment, the second segment being oriented in a same plane as the flat center portion of the first segment in cross section, the second segment including a longitudinal rib, the longitudinal rib protruding in cross section from the second segment, the longitudinal rib being adapted to mate with a rib of a curved building panel.
Type: Application
Filed: Mar 24, 2010
Publication Date: Sep 29, 2011
Applicant: M.I.C. Industries, Inc. (Reston, VA)
Inventors: Todd E. Anderson (Duncansville, PA), Frederick Morello (Johnstown, PA)
Application Number: 12/659,886
International Classification: E04B 1/32 (20060101); E04B 1/38 (20060101); B21D 47/00 (20060101);