Head and sill tensioning system
A tensioning system for drawing together abutting first and second portions of a closure assembly includes a base member and at least a first deformable member. The base member is attached to the first portion of the closure assembly. The first deformable member has a center portion, a proximal end mechanically coupled to the base member and a distal end attached to the second portion of the closure assembly. Deformation of the center portion generates a first tensioning force on the base member that draws the first portion of the closure assembly toward the second portion.
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This invention relates to devices for assembling window and door systems.
BACKGROUND OF THE INVENTIONIdeally, window and door systems are manufactured as unitary systems and put into place in the rough opening at the job site. The problem is that the size of some window and door systems is such that it is not practical to ship an entire assembled system to a job site for installation. Accordingly, some window and door systems are manufactured in component parts assembled on the job site. For example, the head, sill and head cover members may be shipped in pieces to the job site and then assembled into a window or door system for installation in the rough opening. This approach potentially results in defective assembly and/or installation of the window and door system. In particular, it may be difficult to tightly splice or join together opposing pieces and angled joints.
One example of an installation system is described in U.S. Pat. No. 5,285,606 (Hagemeyer) titled “Window and Door Assembly Manufactured in Sections and Method of Installing Same.” The device included a flat member provided with a plurality of screws received in holes disposed at an angle such that the screws are directed downwardly and outwardly toward the opposite ends for drawing the head members together in an end-to-end, abutting relationship.
What is desirable, then, is a window and door system that can be manufactured as fully as possible but yet be of such a size that it can be readily shipped to the job site and then installed on a basis so that there is a minimal opportunity for mistakes to be made which will cause the system to be inoperative.
SUMMARY OF THE INVENTIONAccording to one embodiment, the present invention is a tensioning system for drawing together abutting first and second portions of a closure assembly. The tensioning system includes a base member and at least a first deformable member. The base member is attached to the first portion of the closure assembly. The first deformable member has a center portion, a proximal end mechanically coupled to the base member and a distal end attached to the second portion of the closure assembly. Deformation of the center portion generates a first tensioning force on the base member that draws the first portion of the closure assembly toward the second portion.
A tensioning system according to the present invention provides a convenient means of assembling a closure system. Opposing sections may be drawn together tightly, increasing the overall stability and strength of the completed closure assembly. Torque applied to the splicing screws is efficiently transferred to forces drawing the closure members together. Furthermore, the tensioning assembly is self-contained; that is, the closure assembly need not be provided with additional structure to accommodate the tensioning assembly or to facilitate installation and operation of the tensioning assembly.
Typically, the installer will use a screwdriver to exert a driving force on the splicing screws in a direction perpendicular to the axis of splicing or drawing together of the closure members. Installation and operation may therefore be performed in tight spaces. The closure members may be secured together with other means as is known and the art and the tensioning system removed. Alternately, the tensioning system may be left in place permanently to provide a tight connection, or to provide additional support to further securing means. Furthermore, the tensioning system may be installed on the non-front facing sides of closure members to avoid marring the decorative element of the closure assembly.
BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS
By way of illustration, the sections 12 and 14 include fixed window units 22 and sliding door window units 24. In the illustrated embodiment, the head and sill frame members 16, 18 function as tracks for the sliding doors 24. Optionally, a pair of decorative head cover sections 26 snap onto the head members 16.
The head and sill members 16, 18 are tightly joined at the factory to the vertical members 20 to form the corner joints 21. The opposing head and sill members 16, 18 of the sections 12, 14, however, must also be joined tightly together in the field, without the benefit of factory equipment. As will be discussed in detail below, the various embodiments of the present tensioning system permits factory quality assembly of discrete closure sections.
The base member 31 is preferably constructed from a high tensile strength material, such as metal or certain plastics. The base member 31 can be formed by extrusion, roll forming, or a variety of other techniques. In the illustrated embodiment, the base member 31 includes a first portion 32, a second portion 34 extending perpendicularly from the first portion 32, a concave curved third portion 36 extending from the second portion 34, a fourth portion 38 extending from the third portion 36 parallel to the second portion 34, an angled fifth portion 40 extending from the fourth portion 38 and a sixth portion 42 extending from the fifth portion 40 parallel to the second portion 34 and spaced apart from the first portion 32. In combination, the first portion 32, the second portion 34, the third portion 36, the fourth portion 38, the fifth portion 40 and the sixth portion 42 define an open channel 46 extending the length of the base member 31.
The sixth portion 42 includes end segments 42a, 42c and center segment 42b separated by openings 44a and 44b. The first deformable member 50a is located in the opening 44a and the second deformable member 50b is located in the opening 44b. In the illustrated embodiment, the deformable members 50a and 50b are generally the same and are positioned within the openings 44a and 44b to form mirror images of one another.
The follow description refers generally to the deformable member 50a, but is equally applicable to the deformable member 50b.
The second support 62 includes a vertical first leg 64 and a horizontal lip 66. A surface 64a of the first leg 64 and a surface 66a of the lip 66 define a recessed corner 68 for receiving the segment 42b of the sixth portion 42. A vertical second leg 70 extends perpendicular to the lip 66 and is aligned with the first leg 64. A tab 72 extends from the first leg 64 opposite the lip 66 and has a recessed region 73. An aperture 74 extends through the tab 72 at the recessed region 73.
Angled legs 78, 80 extend from the first and second supports 52, 62, respectively, to form the non-planar deformable portion 76. Angled legs 78, 80 meet at a crest 82 having an aperture 84 extending therethrough. The deformable portion 76 may be elastically or plastically deformable depending upon the application.
The deformable members 50a and 50b are positioned within the channel 46 of the base member 31 at the openings 44a and 44b. With respect to the deformable member 50a, the lip 56 overlaps the segment 42a while the lip 66 overlaps segment 42b so that the deformable member 50a is supported on the segments 42a and 42b. With respect to the deformable member 50b, the lip 56 overlaps the segment 42c and the lip 66 overlaps the segment 42b so that the deformable member 50b is supported on the segments 42b and 42c. The openings 44a and 44b are slightly shorter than the overall length of the deformable members 50a, 50b such that the deformable members 50a, 50b are slidable within the openings 44a, 44b, supported on the segments 42a, 42b and 42c. The deformable members 50a and 50b are positioned within the openings 44a, 44b, respectively, as far towards the ends of the base member 31 as possible. Optionally, the first supports 52 are adhered to the segments 42a, 42c, respectively.
Referring now to
As the maneuver is alternately repeated on the deformable members 50a and 50b, the opposing head cover sections 26a, 26b are incrementally drawn towards one another until they firmly abut one another. As shown, the deformable members 50a, 50b deform along an axis perpendicular to the axis along which the head cover members 26a, 26b are drawn together. According to one embodiment, the tensioning system 30 is left in place to secure the head cover sections to one another. Additional fixation means may be employed to further secure the head cover sections to one another. According to another embodiment, the tensioning system 30 is removed after the head cover sections are secured together via other means.
According to another embodiment of the invention, shown in
Each opening 104, 106, 108, 110 is provided with a deformable member 112. Each deformable member 112 has a proximal angled leg 122 and a distal angled leg 124 forming a crest 126. An aperture 128 extends through the crest 126. Each leg 122 is mechanically coupled to the base member 102 at the a side of the openings 104, 106, 108, 110. Optionally, the leg 122 is integrally formed with base member 102 at the a side of the openings 104, 106, 108 and 110. Each leg 124 is provided with a flat tab portion 116 extending toward but not engaging the b side of the openings 104, 106, 108 and 110. The flat tab portion 116 is provided with an aperture 118 extending therethrough. A plurality of peripheral apertures 130 extend through the base member 102 at each end and along the sides.
As the splicing screws 125 advance, they exert a driving force as shown by arrows FD on the deformable members 112, driving the crests 126 downward. A portion of driving force FD is transferred to a perpendicular tensioning or splicing force as shown by arrows FS driving each angled leg 124 and flat tab portion 116 towards the center of the base member 102, or towards the b sides of the apertures 104, 106, 108, 110. The axis of the splicing force FS is perpendicular to the axis of the driving force FD. According to one embodiment, the axis of the splicing force FS extends along a longitudinal axis of the base member 102.
Once the head sections 16a, 16b firmly abut one another, they may be affixed to one another. Optionally, fasteners are driven through the peripheral apertures 130. In this case, the tensioning assembly 100 remains in place, holding the head sections 16a, 16b together permanently. Alternately, another device is employed to secure the head frame member sections 16a, 16b to one another and the tensioning assembly 100 is removed.
According to another embodiment of the present invention, as shown in
A tensioning system 100 in accordance with the present embodiment is operable to splice together closure members forming anywhere from about a 10° angled joint to about a 180° angled joint, as shown in
According to another embodiment of the invention, shown in
Each opening 206 and 208 is provided with a deformable member 212. Each deformable member 212 has two angled legs 222, 224 forming a crest 226. An aperture 228 extends through the crest 226. Each leg 222 is fixed to and stationary with respect to the a side of the openings 206 and 208. Optionally, legs 222 are integrally formed with base member 202. Each leg 224 is provided with a flat tab portion 216 extending toward but not engaging the b side of the openings 206 and 208. The flat tab portion 216 is provided with an aperture 218 extending therethrough. A plurality of peripheral apertures 230 are positioned at each end and along the sides of the base member 202.
The tensioning system 200 has a structure and operation similar to that described with respect to the tensioning systems shown in
Fasteners 223 are driven through the flat tabs apertures 218 and into the base member 16 or vertical member 20 as appropriate. Fasteners such as splicing screws 225 are driven through the crests 226 and into the head member 16 or vertical member 20 as appropriate. Each splicing screw exerts a driving force FD on the crests 226 of the deformable members 212. In this example, driving force FD is exerted into the page. The driving force FD is transferred into opposing splicing forces FS1 and FS2 driving the flat tabs 216 towards the b sides of the openings. Splicing forces FS1 and FS2 are exerted an at angle to one another, drawing the head member 16 and vertical member 20 into close abutment. The tensioning system 200 may be left in place and fasteners driven into the peripheral apertures 230 to permanently secure head member 16 and vertical member 20 together. Optionally, the head member 16 and vertical member 20 may be secured together via other means as is known in the art and the tensioning system 200 is removed.
The tensioning system 200 as shown is operable to splice together members forming a 90° angled joint. According to other embodiments, the base member legs 201, 203 extend at angles relative to one another of from about 10° to about 170° and are operable to splice together members forming an approximately like-angled joint.
According to another embodiment of the invention, shown in
Each opening 304, 306, 308 and 310 is provided with a deformable member 312. Each deformable member 312 has two angled legs 322, 324 forming a crest 326. An aperture 328 extends through the crest 326. Each leg 322 is fixed to and stationary with respect to the a side of the openings 304, 306, 308 and 310. Optionally, the angled leg 322 is integrally formed with the base member 302 at the a side of the respective openings. Each leg 324 is provided with a flat tab portion 316 extending toward but not engaging the b side of the openings 304, 306, 308 and 310. The flat tab portion 316 is provided with an aperture 318 extending therethrough. A plurality of peripheral apertures 330 are positioned at each end and along the sides of the base member 302.
The tensioning system 300 has a structure and operation similar to that described with respect to the tensioning systems shown in
The splicing screws exert a first driving force FD1 on the deformable members 312 coupled to the head member side face 15 and a perpendicular second driving force FD2 on the deformable members 312 coupled to the vertical member side face 17. A portion of first driving force FD1 is transferred to a first splicing force FS1 and a portion of second driving force FD2 is transferred to a second splicing force FS2. Splicing forces FS1 and FS2 are exerted at an angle to one another and perpendicular to their respective driving forces FD1 and FD2. Splicing forces FS1 and FS2 tend to push the flat tab portions 216 towards the b sides of the apertures 304, 306, 308 and 310, respectively, or towards the seam 319, drawing the head member 16 and vertical member 20 into close abutment.
The tensioning system 300 may be left in place and fasteners driven through the peripheral apertures 330 to permanently secure the head member 16 and the vertical member 20 together. Optionally, the head member 16 and vertical member 20 may be secured together via other means as is known in the art and the tensioning system 300 removed and discarded.
The tensioning system 300 according to the present embodiment is operable to splice together members forming a 90° angled joint. According to other embodiments, the base member legs 301, 303 extend at angles of from about 10° to about 170° relative to one another and are operable to splice together members forming an approximately like-angled joint.
The tensioning system 300 is operable to splice together members without defacing the front, or decorative surface. Tensioning system 300 is also operable to splice together closure members that are too thin to drive fasteners through as is shown in
Fasteners (not shown) are driven through the peripheral apertures 412 to mechanically couple the tensioning body 402 to the opposing closure sections. A fastener, such as splicing screw 425, is driven through aperture 414. Unlike previous embodiments, deformable members 408, 410 are in a planar configuration and are deformed to a peaked or bent configuration as shown in
Deformation of the opposing pairs of deformable members 504 draws together the head member sections 16a, 16b along a plurality of axes. In this manner, lateral adjustments of the closure member sections 16a, 16b relative to one another are made as they are drawn together. The head member sections 16a, 16b may be aligned in multiple axes relative to one another as they are drawn together. This feature is useful in aligning head member sections already partially installed in a rough opening. It is also useful in re-aligning and drawing together the members of pre-existing closure systems which have become mis-aligned over time through, for example, gradual shifting and settling of the structure.
A tensioning system according to the present invention is preferably constructed of galvanized steel. However, it is contemplated that the tensioning system may be made of aluminum or other like materials.
According to one embodiment, the deformable members of the above described tensioning systems are elastically deformable. That is, following deformation, the deformable members may be returned to their pre-deformed configuration. Such a reverse maneuver may be employed to push apart closure members to correct for inadvertent over-tightening or mis-alignment throughout the installation procedure. Used tensioning assemblies may also be returned to a pre-deformed configuration and re-used.
Although the present invention has been described with reference to preferred embodiments, workers skilled in the art will recognize that changes may be made in form and detail without departing from the spirit and scope of the invention. In addition, the invention is not to be taken as limited to all of the details thereof as modifications and variations thereof may be made without departing from the spirit or scope of the invention.
Claims
1. A tensioning system for a closure assembly having first and second portions joined at a seam, the tensioning system comprising:
- a base member attached to the first portion of the closure assembly; and
- at least a first deformable member having a center portion, a proximal end mechanically coupled to the base member and a distal end attached to the second portion of the closure assembly such that deformation of the center portion generates a first tensioning force on the base member that draws the first portion of the closure assembly toward the second portion.
2. The tensioning system of claim 1 wherein the base member comprises an elongated linear structure.
3. The tensioning system of claim 1 wherein the base member comprises an elongated non-linear structure.
4. The tensioning system of claim 1 wherein the base member comprises a generally planar structure.
5. The tensioning system of claim 1 wherein the base member comprises a non-planar structure.
6. The tensioning system of claim 1 wherein the base member comprises an open channel.
7. The tensioning system of claim 1 wherein the center portion is non-planar.
8. The tensioning system of claim 1 wherein the center portion is planar.
9. The tensioning system of claim 1 wherein the center portion is plastically deformable.
10. The tensioning system of claim 1 wherein the center portion is elastically deformable.
11. The tensioning member of claim 1 wherein the distal end of the deformable member is positioned closer to the seam than the proximal end.
12. The tensioning system of claim 1 comprising:
- an aperture extending through the center portion; and
- a fastener extending through the aperture and into the second portion, such that advancing the fastener into the second portion increases the tensioning force on the base member.
13. The tensioning system of claim 1 wherein the deformable member comprises a discrete component.
14. The tensioning system of claim 1 wherein the deformable member comprises a portion of the base member.
15. The tensioning system of claim 1 wherein the tensioning force acts along a longitudinal axis of the base member.
16. The tensioning system of claim 1 wherein the tensioning force acts at an angle relative to a longitudinal axis of the base member.
17. The tensioning system of claim 1 wherein the base member is attached to the first portion by a second deformable member having a center portion, a proximal end mechanically coupled to the base member and a distal end attached to the first portion.
18. The tensioning system of claim 17 wherein the first deformable member generates a first tensioning force on the base member and the second tensioning member generates a second opposing tensioning force on the base member.
19. The tensioning system of claim 1 comprising a second deformable member having a center portion, a proximal end mechanically coupled to the base member and a distal end attached to the second portion of the closure assembly such that deformation of the center portion generates a second tensioning force on the base member at an angle relative to the first tensioning force.
20. A tensioning system for a closure assembly having first and second portions joined at a seam, the tensioning system comprising:
- a base member attached to the first portion of the closure assembly;
- at least a first deformable member having a center portion, a proximal end mechanically coupled to the base member and a distal end attached to the second portion of the closure assembly such that deformation of the center portion generates a first tensioning force on the base member that draws the first portion of the closure assembly toward the second portion;
- at least a second deformable member having a center portion, a proximal end mechanically coupled to the base member and a distal end attached to the second portion of the closure assembly such that deformation of the center portion generates a second tensioning force on the base member at an angle relative to the first tensioning force; and
- at least a third deformable member having a center portion, a proximal end mechanically coupled to the base member and a distal end attached to the second portion of the closure assembly such that deformation of the center portion generates a third tensioning force on the base member at an perpendicular angle relative to the second tensioning force.
21. A method of assembling a closure system having a plurality of members forming joints, the method comprising:
- positioning the ends of opposing closure members adjacent one another to form a seam;
- positioning a tensioning assembly having a base member mechanically coupled to first and second deformable members over the closure members;
- securing the first deformable member to a first closure member and the second deformable member to a second closure member;
- exerting a driving force on the first and second deformable members in a first axis;
- transferring a portion of the driving force exerted on the first and second deformable members into splicing forces exerted on the base member perpendicular to the driving force; and
- drawing the closure members into tight abutment.
22. The method of claim 21 further comprising inserting the tensioning assembly into a channel formed by the closure members.
23. The method of claim 21 further comprising securing the first deformable member to a first closure member extending in a first plane and securing the second deformable member to a second closure member extending in a second plane different from the first plane.
24. The method of claim 21 wherein exerting a driving force further comprises advancing a screw extending through each deformable member into the closure members.
25. The method of claim 21 further comprising securing the base member to the assembled closure members.
26. The method of claim 21 further comprising positioning the un-assembled closure members in a rough opening.
Type: Application
Filed: Jan 31, 2005
Publication Date: Aug 17, 2006
Applicant: Pella Corporation (Pella, IA)
Inventor: Paul Schroder (Pella, IA)
Application Number: 11/047,414
International Classification: E04C 5/08 (20060101);