Flat folding scaffold system with shrubbery shelter

Abstract

An a-frame tripod truss for a scaffold for mounting a platform adjacent a structure having tripod metallic frame segments and removable cross bracing providing a stand-alone, three point support with two ground supports and one wall support, each having extension devices for providing a stable footing on uneven surface. The tripod trusses provide a flat-folding scaffold, with hinged, pivoting connections that permit collapsing the unit, in combination with a shrubbery shelter and staging platform. This flat-folding scaffold, with hinged, pivoting connections that permit collapsing the unit, in combination with shrubbery shelter comprising a plywood member used as a shelter for outdoor plants, attached to the scaffold frame member by platform lock-and-shelter clips supported by the ground support member such that the scaffold provides adequate structural support for supporting heavy loads on the staging platform in addition to heavy loading of the shelter with construction waste.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application is a continuation-in-part of U.S. patent applications Ser. No. 08/665,256, entitled Lean-to Scaffold System, filed on Jun. 17, 1996, of Robert M. Phillips, and Ser. No. 29/083,791, entitled A-Frame Tripod Truss for a Scaffold, filed on Feb. 9, 1998, of Robert M. Phillips, now U.S. Pat. Des 433,761, and Ser. No. 09/619,620 entitled A-Frame Tripod Truss for a Scaffold filed on Jul. 19, 2000, which are incorporated herein by reference.

[0002] In the parent application, Ser. No. 08/665,256, entitled Lean-to Scaffold System, the invention is directed to a three point collapsible scaffold system for mounting a temporary platform supported on the ground adjacent structure. More specifically the present invention is directed to the inventive combination of a collapsible scaffold with extendable three point support members which permit the two ground support point members to be adjustable spaced apart from a structural wall.

[0003] In the present application, the invention is directed to a novel flat folding scaffold hinged, pivoting connections which permit collapsing the unit in combination with a shrubbery shelter and staging platform. In particular the invention is directed to a flat folding scaffold, with hinged, pivoting connections which permit collapsing the unit, in combination with shrubbery shelter means. The shrubbery shelter comprising a plywood member used as a shelter for outdoor plants, attached to the scaffold frame member by platform lock-and-shelter clips supported by the ground support member. The present application provides adequate structural support for supporting heavy loads on the staging platform in addition to heavy loading of the shelter with construction waste.

BACKGROUND OF THE INVENTION

[0004] The present invention relates to a three point collapsible scaffold system for mounting a temporary platform and shrubbery shelter supported on the ground adjacent structure. More specifically the present invention is directed to the inventive combination of a collapsible scaffold with extendable three point support members which permit the two ground support point members to be adjustably spaced apart from a structural wall having hinged, pivoting connections which permit collapsing the unit.

DESCRIPTION OF RELATED ART

[0005] Scaffolding is well known and commonly employed by people who desire to perform work such as repair, painting or reconstructing buildings. Applicant is aware of prior art including the following U.S. Patents which relate to scaffolding devices. One such device is shown in patents to Riegel, Jr., Middleton et al., Ireland, and Holm. In particular Ireland shows a collapsible staging without anchoring clips, and Middleton shows clips. Middleton shows a method and apparatus of scaffolding during building with a folding hanger and work frames, storable bumpers on the wood frame for propping the scaffold off the wall and a hanger from suspending the scaffolding from above, typically from the cap or upper header of a building wall. Another device is shown in U.S. Pat. No. 4,738,335 to Ishii and shows a hook devices for hanging from a parapet wall, for repairs on an outer wall.

[0006] A common problem for homeowners with expanding needs is the high costs of purchasing a new home, many homeowners are electing to have their homes resided or repainted. Many of these conservative individuals prefer to employ professional contractors rather than struggling to complete such large tasks by themselves. One of the most important aspects of remodeling a home is to ensure that existing features such as bushes, shrubs, and flower beds are not harmed through the activity. Today it is not uncommon to have upwards of $20,000 invested in landscaping much of which surrounds the house. Other critical goals, from a contractor's point of view, are to make sure that the customer is satisfied while still making a profit from such hard work. To this end, the utilization of scaffolding is compulsory for siding, painting, and even window replacement. Scaffolding allows more surface area to be completed at one time than by using ladders. However, while scaffolding is relatively effective, it is very time consuming to erect in a manner to insure the platform is structurally safe and sound, and to move from one section of a structure to another. In addition, ordinary scaffolding can be quite difficult to use around complex architectural features. Clearly, if a new type of support was offered, both the contractor and homeowner would benefit which shows a method and apparatus of scaffolding during building with a folding hanger and work frames, storable bumpers on the wood frame for propping the scaffold off the wall and a hanger from suspending the scaffolding from above, typically from the cap or upper header of a building wall.

[0007] Despite the teachings of the prior art, there has not been of a three point collapsible scaffold system having hinged, pivoting connections which permit collapsing the unit. In the present invention the applicant is specifically claiming the criticality of the three point collapsible scaffold system, focusing on the hinged, pivoting connections which permit collapsing the unit three point collapsible scaffold system. The present invention is useful for mounting a temporary platform supported on the ground adjacent structure, which is extendible easy to erect, readily adjustable for safe and secure leveling as well as quickly moveable, and provides good protection for existing flower beds and shrubs under the scaffolding. The present invention permits this by incorporation of an extendible three point members to provide quick-leveling. The metallic frame segments have a tripod configuration and when mounted on the ground and leaned against an adjacent vertical wall with plywood sheet attached protect various landscape improvements, which overcomes some of the shortcomings of the prior art and provides for fast, safe and economical installation.

[0008] A further problem identified by the applicant is that roofing contractors typically must build a chute over delicate flowers and shrubs for providing for diversion and disposal of construction waste. To provide such a chute a contractor must take 2×4 beams, cut them up, nail them to the building to make a frame with braces so that you have something to nail the plywood panels to. It takes over an hour, plus lumber cost. Applicant's solution is to provide a structurally sound yet foldable temporary scaffold platform supported on the ground adjacent structure, which is extendible easy to erect, readily adjustable for safe and secure leveling as well as quickly moveable, and with plywood sheet(s) attached, provides good protection for existing flower beds and shrubs under the scaffolding.

[0009] The invention will be described for the purposes of illustration only in connection with certain embodiments; however, it is recognized that those persons skilled in the art may make various changes, modifications, improvements and additions on the illustrated embodiments all without departing from the spirit and scope of the invention.

SUMMARY OF THE INVENTION

[0010] The present invention is directed to novel flat folding scaffold combination with shrubbery shelter means and staging platform. This scaffold comprises a plurality of at least two a-frame tripod trusses for supporting said staging platform adjacent a structure, each tripod having metallic structural segments wherein said structural elements are joined by novel hinged, pivoting connections which permit collapsing the unit to a flat folding scaffold. The a-frame segments include removable cross bracing providing a stand alone three point support with two ground supports and one wall support, each having extension devices for providing a stable footing on uneven surface. The shrubbery shelter means comprises a plywood member used as a shelter for outdoor plants, attached to the scaffold frame by combination platform lock-and-shelter clips supported by the ground support member such that the scaffold provides adequate structural support for supporting heavy loads on the staging platform in addition to heavy loading of the shelter with construction waste.

[0011] More particularly each a-frame tripod truss for a scaffold consists of at least two metallic frame segments, each segment configured to be leaned against the vertical wall, being securely mounted in place without fasteners such as nails driven into the wall. Each frame segment includes a three point support including a triangular ground support “A” frames with removable transverse rung members for forming a ladder, and one wall support, each support member having adjustment means for moving extendable support pads between an extended position and a retracted position. In the present invention, leveling of the platform members is easily accomplished as adjustable feet are included for providing a stable footing on uneven surfaces, as well as adjustable wall supports for greater stability.

[0012] As a Roofing Contractor sometimes I have to build a chute over delicate flowers and shrubs for providing for disposal of construction waste. To take the roof off you have to take 2×4 beams, cut them up, nail them to the building to make a frame with braces so that you have something to nail the plywood panels to. It takes over an hour, plus lumber cost. No more! You take three a-frame truss segments, put the planks on them between the lock clips and combination platform lock-and-shelter clips to form a staging platform, just nail the plywood through the nail aperture of the combination platform lock-and-shelter clips and you have your chute. It takes about fifteen minutes. Pop the plywood off and your staging is already there so you can start roofing right away. No clean up, no damage to the building. And with my time saved they're paying for themselves. After a couple of jobs, now they're making money for me.

[0013] Same with working on a dormer check. Take two frame segments, a plank and tack down the plywood. Instant ramp. Now for the first time you can set a level staging using two different walls! Take your standard ranch with an attached garage, You extend one frame segment to the main house and the second to the garage, now you can work on the front and side of the area at the same time. On top of that both hands are free.

[0014] As a painting contractor take three frame segments and stage out the front of the house. You can blow out the high work in half the time because you don't have to move a ladder. Saving me production time, making money for me again! Just because I have them.

[0015] You can take two frame segments straddle a bay window and paint all three sides because you're right there, again no equipment to move.

[0016] And the list goes on and on.

[0017] The bottom line on the “Lean-to.”

[0018] 1. It's faster;

[0019] 2. It's better;

[0020] 3. It's safer;

[0021] 4. And it's designed to make money for the contractor.

[0022] The present invention is constructed from aluminum frame segments and removable cross bracing. It is triangular in appearance with retractable extensions protruding from its uppermost surface. The triangular shape with bracing offers the necessary structural rigidity for carrying heavy loads. The extensions are supported by an additional brace which attaches to one of the legs. A locking clip and combination platform lock-and-shelter clip are provided which are an integral part of the extensions. With the extensions secured in a horizontal position, the clips can be used for anchoring a staging platform. When used as a shelter for outdoor plants during construction, scrap pieces of plywood can be placed over the sides of the frame segment and anchored by supporting the plywood sheet against two or more combination platform lock-and-shelter clips. Both legs incorporate adjustable feet for providing a stable footing on uneven surfaces. With the cross braces removed, and the extensions folded, the frame segment collapses into a compact, easily transportable unit.

[0023] Obtaining quality results in a reasonable amount of time is the goal of every professional contractor. Prior to beginning work, however, rigid protection must be installed for exterior vegetation. Also, materials and tools must be brought to a height where work can be sustained. The frame segment performs these functions well and is one accessory that anyone remodeling a home should have.

[0024] Accordingly, the primary object and purpose of the present invention is to provide a new and improved flat folding scaffold in combination with shrubbery shelter means wherein said shrubbery shelter means comprising a plywood member used as a shelter for outdoor plants, attached by combination platform lock-and-shelter clips supported by the ground support member providing adequate structural support for supporting heavy loads on the staging platform in addition to heavy loading of the shelter with construction waste.

[0025] Another object of the present invention is to provide a new and improved method of sheltering shrubs and plantings adjacent the scaffolding.

[0026] Other objects, advantages, and novel features, and further scope of applicability of the present invention will be set forth in part in the detailed description to follow, taken in conjunction with the accompanying drawings, and in part will become apparent to those skilled in the art upon examination of the following, or may be learned by practice of the invention. The invention will be described for the purposes of illustration only in connection with certain embodiments; however, it is recognized that those persons skilled in the art may make various changes, modifications, improvements and additions on the illustrated embodiments all without departing from the spirit and scope of the invention.

BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings, which are incorporated into and form a part of the specification, illustrate several embodiments of the present invention and, together with the description, serve to explain the principles of the invention. The drawings are only for the purpose of illustrating a preferred embodiment of the invention and are not to be construed as limiting the invention.

[0028] The invention will be described for the purposes of illustration only in connection with certain embodiments. However, it is recognized that those persons skilled in the art may make various changes, modifications, improvements and additions on the illustrated embodiments all without departing from the spirit and scope of the invention.

[0029] FIG. 1 is a perspective view of the scaffold system of the present invention shown supporting a platform adjacent a building and above shrubs of the priority application.

[0030] FIG. 2 is a perspective view from above of a tripod truss showing the triangular front frame and a wall support of the invention of FIG. 1 of the priority application.

[0031] FIG. 3 is a perspective view of the A-frame Tripod Truss for a Scaffold shown in open position according to the present invention.

[0032] FIG. 4 is a perspective view thereof with extensions retracted, and the crossbars exploded according to the present invention;

[0033] FIG. 5 is a perspective view thereof with the attachments and crossbars exploded according to the present invention;

[0034] FIG. 6 is a perspective view thereof according to the present invention;

[0035] FIG. 7 is a perspective view of the A-frame Tripod Truss for a Scaffold shown in collapsed position according to the present invention;

[0036] FIG. 8 is a front elevational view thereof according to the present invention;

[0037] FIG. 9 is a right side elevational view thereof; the left side being identical according to the present invention;

[0038] FIG. 10 is a rear elevational view thereof according to the present invention;

[0039] FIG. 11 is a top plan view thereof according to the present invention;

[0040] FIG. 12 is a bottom plan view thereof according to the present invention;

[0041] FIG. 13 is a front elevational view of FIG. 1 according to the present invention;

[0042] FIG. 15 is a right side elevational view thereof; the left side being identical according to the present invention;

[0043] FIG. 16 is a rear elevational view thereof according to the present invention;

[0044] FIG. 17 is a top plan view thereof according to the present invention; and

[0045] FIG. 18 is a bottom plan view thereof.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0046] Referring to the FIGS. 1-5 of the priority embodiment there is shown in FIGS. 1-5 a a-frame tripod truss scaffold assembly 10 comprising a plurality of truss segments 16 resting on the ground 11 for mounting a temporary platform 12 adjacent a vertical structure 14. Scaffold assembly 10 includes at least two stand-alone tripod truss segments 16 consisting of frames formed of metallic construction, each tripod truss spaced apart along a vertical wall 20. Temporary platform 12 consists of at least one board as is shown in FIG. 1.

[0047] Applicant further claims the criticality of a flat folding scaffold system which permit collapsing the entire unit. In particular to the dual action hinged & pivoting connections which permit collapsing the unit as a compact generally rectangular unit for well organized storage and easy access. Applicant submits that Ireland fails to disclose a dual action hinged & pivoting means to permits flat folding of his unit.

[0048] As is shown in FIGS. 2 & 4, each tripod truss 16 includes a triangular ladder segment 22 having two legs 20 and 22 meeting at an apex 17 having removable combination ladder rung members and cross bracing struts 18. In the preferred embodiment each tripod frame has three point support, comprising two ground support members consisting of legs 20 and 22 and one wall support member 24. As is shown in FIGS. 3 & 4 each of said legs incorporate adjustable feet 30 for providing a stable footing on uneven surfaces. In the preferred embodiment, each wall support member include retractable wall support members 40 protruding from each distal end. The incorporation of adjustable feet for providing a stable footing on uneven surfaces and adjustable wall supports, permits a stable arrangement for each installation of the preferred embodiment.

[0049] Also included as is shown in FIG. 5 is a combination ladder rung and lateral brace means for bracing legs 20 and 22 and forming a ladder for accessing the platform 18, consisting of a series of rung members 19. Said rung members are removable wherein once the cross braces removed, and the wall support members folded, the A-frame tripod truss Scaffold System collapses into a compact, easily transportable unit as is shown in FIGS. 8 -12. Each wall support member 24 is supported by an releasable brace 32 comprising brace means for moving between a collapsed folded position as shown in FIGS. 8-10 and an open locked position shown in FIG. 4.

[0050] Also, the preferred embodiment includes anchoring locking clips 34 which are an integral part of each wall support 24 wherein, with each wall support 24 secured in a horizontal position, clips 34 can be used for anchoring a staging platform 18 as well as tack attaching plywood 50.

[0051] Referring to FIGS. 1, 2 & 14 there is shown plywood shelter 50. There is shown in FIG. 14 the attachment of plywood shelter 50 to the frame member of wall support member 24 by means of lock and fasten clips 34. FIG. 14 shows of lock and fasten clips 34 with a conventional rail driven through aperture 38 into to the lower edge of plywood shelter 50 for attachment of plywood shelter 50 to the frame member of wall support member 24. Aperture 38 is positioned in the distal end angled offset arm 41. Said arm 41 is integrally formed with lock and fasten clips to provide a secure support for the base of plywood shelter 50 thereby preventing displacement thereof. As is shown in FIG. 14 plywood shelter 50 is held in the fixed angle arrangement of a right triangle formed by the side of the house 20 arranged in orthogonal relation ship with wall support member 24 whereby plywood shelter 50 forming the hypotenuse as is shown in FIGS. 2 & 14

[0052] Referring to FIG. 3 through FIG. 18 in preferred embodiment of the present invention there is shown an improved three point collapsible scaffold system directed to hinged, pivoting connections 42 which permit collapsing the unit, see FIGS. 11, 12 & 18.

Claims

1. A flat folding scaffold in combination with shrubbery shelter means and platform means comprising; a plurality of at least two truss elements each truss element providing three point support for staging means, each truss element comprising three elements, two ground support members joined at an apex in an A-Frame configuration and one combination wall and platform support member, wherein all three elements are connected by a unitary hinge means comprising a hinged connection wherein the scaffold as an entire unit may be flat folded in a compact generally rectangular unit for well organized storage and easy access.

2. The flat folding scaffold of claim 1 wherein each ground support member is joined at an apex by a dual action pivoting hinged connection and joined longitudinally by multiple combination cross brace and ladder members and extends downwardly to adjustable feet wherein the A-Frame configuration with bracing offers structural rigidity;

3. The flat folding scaffold of claim 1 wherein said flat folding scaffold comprises

a) ladder means for providing access to a staging platform comprising brace means for the leg members;

b) a staging platform comprising a generally horizontal wooden platform supported by at least two platform support members;

c) a shrubbery shelter means for sheltering shrubs and plantings adjacent the scaffold in combination with the staging platform used as a shelter for outdoor plants whereby said scaffold provides ladder access to the staging platform; structural support for supporting heavy loads on the staging platform as well as support for shrubbery shelter means and once the cross brace and ladder members are removed, and the wall support members folded, the A-frame tripod truss for a scaffold collapses into a flat folded compact, easily transportable unit.

4. The scaffold system of claim 1 wherein the a-frame tripod truss frame means consists of a plurality of at least two tripod metallic frame segments having removable cross bracing anchoring means comprising pairs of clips consisting of a locking clips and a lock and fasten clips whereby locking clips can be used for anchoring a staging platform and lock and fasten clips can be used to anchoring the shrubbery shelter means.

5. The scaffold system device of claim 1 wherein the two ground support members are arranged in a triangle having two legs joined at an apex and extending downwardly to adjustable feet wherein the triangular shape with bracing offers the necessary structural rigidity for carrying heavy loads.