IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0245092
(2002-09-17)
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발명자
/ 주소 |
- Fortin, Marc A.
- Mason, John Bryan
- Sirois, Mike G.
- Watters, Robert D.
- Read, Clifford D.
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
14 인용 특허 :
53 |
초록
▼
A portable workbench includes a top structure, a support structure and a collapsible frame. The top structure includes upper work supporting surfaces lying in a common plane and longitudinally extending opposed side portions defining clamping surfaces. A linkage mechanism cooperates with the frame t
A portable workbench includes a top structure, a support structure and a collapsible frame. The top structure includes upper work supporting surfaces lying in a common plane and longitudinally extending opposed side portions defining clamping surfaces. A linkage mechanism cooperates with the frame to actuate the workbench between an expanded working position and a collapsed transport position. A lever releasably cooperates with the frame to maintain the workbench in a locked expanded position.
대표청구항
▼
1. A portable workbench comprising:a working surface having a pair of top members lying in a common plane, said pair of top members including opposing side portions defining clamping surfaces; a support structure supporting said top members and including a clamping device for selectively transversin
1. A portable workbench comprising:a working surface having a pair of top members lying in a common plane, said pair of top members including opposing side portions defining clamping surfaces; a support structure supporting said top members and including a clamping device for selectively transversing one of said pair of top members toward the other of said top members to provide for clamping of a workpiece therebetween; a pair of legs extending between said support structure and a base member; a lever interconnected to said support structure, said lever movable between a locked position and a release position, said lever positioned in a notch incorporated on said pair of legs in said locked position thereby precluding relative movement of said support structure with said pair of legs, said lever movable out of engagement with said notch to said release position allowing pivotal movement between said support structure and said pair of legs; and a linkage mechanism operatively connecting said support structure, said legs and said base, said linkage mechanism including first and second link members pivotally coupled at first ends to said support structure and slidably coupled at opposite second ends to slots formed on said legs. 2. The workbench of claim 1 wherein said linkage mechanism moves the workbench between an expanded position and a collapsed position, said working surface and said base forming a laterally spaced apart relationship in said expanded position, said working surface and said base forming a substantially coplanar relationship in said collapsed position.3. The workbench of claim 2 wherein said slots include a substantially linear portion extending toward said base to a curved portion formed on a terminal end, said first and second link members engaged with said curved portion in said expanded position.4. The portable workbench of claim 2 wherein said link members are further coupled at said second ends to first ends of first and second connecting members, said connecting members coupled to said base at opposite ends whereby translation of said first and second link members along said slot pivots said working surface and said base about said legs between said expanded position and said collapsed position.5. The portable workbench of claim 1, further comprising a pair of feet disposed thereon for contacting ground in said expanded position.6. The portable workbench of claim 1 wherein said pair of feet extend in an inboard direction with respect to said legs, said feet having grooves disposed on upper surfaces thereof.7. The portable workbench of claim 5, further comprising a pair of wheels disposed thereon, said wheels positioned on the workbench a distance from said feet whereby said wheels are laterally offset from said ground in said expanded position.8. The portable workbench of claim 7 wherein said pair of wheels engage said ground in a rolling relationship upon tilting said workbench in a first direction and are precluded from contacting the ground upon tilting said workbench in a second direction while in said collapsed position.9. The portable workbench of claim 1, further comprising a u-shaped support base coupled between said pair of legs.10. A portable workbench comprising:a top structure including a pair of elongated mutually adjacent top members disposed generally transversely thereto and each having upper work supporting surfaces lying generally in a common plane, said pair of top members including longitudinally extending opposed side portions defining clamping surfaces; a support structure supporting said top structure, said support structure including a pair of laterally disposed support members for mounting said top members thereon, said support structure further including a clamping device for selectively transversing at least one of said top members toward the other of said top members to provide for clamping of a workpiece therebetween; a collapsible frame having a pair of legs and a linkage mechanism, where each of said legs are pivotally coupled at one end to one of said support members and pivotally coupled at an opposite second end to a support base, said linkage mechanism operably coupled between said support members and said support base such that said frame is movable between an expanded position and a collapsed position, said top surface and said support base forming a parallel, spaced apart relationship with said pair of legs extending therebetween in said expanded position, said top structure, said support structure and said support base forming a substantially coplanar relationship in said collapsed position; and a pair of feet and a pair of wheels disposed on said frame, said pair of feet contacting ground in said expanded position, said wheels positioned on said frame a distance from said feet whereby said wheels are laterally offset from said ground in said expanded position. 11. The portable workbench of claim 10 wherein said pair of feet extend in an inboard direction with respect to said legs, said feet having grooves disposed on upper surfaces thereof.12. The portable workbench of claim 10 wherein said pair of wheels engage said ground in a rolling relationship upon tilting said workbench in a first direction and are precluded from contacting the ground upon tilting said workbench in a second direction while in said collapsed position.13. The portable workbench of claim 10, further comprising a first and second link member pivotally connected to a respective one of said support members at a first end and slidably coupled to a respective one of said pair of legs at opposite ends.14. The portable workbench of claim 13 wherein said pair of legs include slots formed thereon for accepting a respective post extending from a respective one of said link members, wherein each of said respective posts slidably translate along said slot upon movement of said collapsible frame between said expanded position and said collapsed position.15. The portable workbench of claim 14, further comprising first and second connecting members pivotally interconnected to respective first and second link members on a first end and pivotally connected to said base at opposite second ends, said connecting members actuating said base between said expanded and said collapsed position upon movement of said link members along said slot.16. The portable workbench of claim 10, further comprising a lever interconnected to said support structure, said lever movable between a locked position and a release position, said lever positioned in a notch incorporated on said pair of legs in said locked position thereby precluding relative movement of said support structure with said pair of legs, said lever movable out of engagement with said notch to said release position allowing pivotal movement between said support structure and said pair of legs.17. The portable workbench of claim 10, further comprising a u-shaped support base coupled between said pair of legs.18. A portable workbench comprising:a working surface having a pair of top members lying in a common plane, said pair of top members including opposing side portions defining clamping surfaces; a support structure supporting said top members and including a clamping device for selectively transversing one of said pair of top members toward the other of said top members to provide for clamping of a workpiece therebetween; a collapsible frame including first and second legs pivotally connected to said support structure on first ends and pivotally connected to a base on opposite second ends, said frame movable between an expanded position and a collapsed position, said working surface and said base forming a parallel, spaced apart relationship with said pair of legs extending therebetween in said expanded position, said working surface and said base forming a substantially coplanar relationship in said collapsed position; and a linkage mechanism operatively connecting said support structure, said legs and said base, said linkage mechanism including first and second link members pivotally coupled at first ends to said support structure and slidably coupled at opposite second ends to slots formed on said legs, said link members further coupled at said second ends to first ends of first and second connecting members, said connecting members coupled to said base at opposite ends whereby translation of said first and second link members along said slot pivots said working surface and said base about said legs between said expanded position and said collapsed position. 19. The workbench of claim 18 wherein said slots include a substantially linear portion extending toward said base to a curved portion formed on a terminal end, said first and second link members engaged with said curved portion in said expanded position.20. The portable workbench of claim 18, further comprising a pair of feet disposed thereon for contacting ground in said expanded position.21. The portable workbench of claim 18 wherein said pair of feet extend in an inboard direction with respect to said legs, said feet having grooves disposed on upper surfaces thereof.22. The portable workbench of claim 20, further comprising a pair of wheels disposed thereon, said wheels positioned on the workbench a distance from said feet whereby said wheels are laterally offset from said ground in said expanded position.23. The portable workbench of claim 22 wherein said pair of wheels engage said ground in a rolling relationship upon tilting said workbench in a first direction and are precluded from contacting the ground upon tilting said workbench in a second direction while in said collapsed position.24. The portable workbench of claim 18, further comprising a lever interconnected to said support structure, said lever movable between a locked position and a release position, said lever positioned in a groove incorporated on said support structure in said locked position thereby precluding relative movement of said support structure with said pair of legs, said lever movable out of engagement with said groove to said release position allowing pivotal movement between said support structure and said pair of legs.25. The portable workbench of claim 18 whereby first and second link members each include a pair of link members extending from opposite sides of said support structure to opposite sides of said pair of legs.26. The portable workbench of claim 18, further comprising a u-shaped support base coupled between said pair of legs.27. A portable workbench comprising:a working surface having a pair of top members lying in a common plane, said pair of top members including opposing side portions defining clamping surfaces; a support structure supporting said top members; a pair of legs extending between said support structure and a base member; a linkage mechanism operatively connecting said support structure, said legs and said base, said linkage mechanism including first and second link members pivotally coupled at first ends to said support structure and slidably coupled at opposite second ends to slots formed on said legs; and a lever interconnected to said support structure proximate said top members and movable in a lateral direction relative said top members between a locked position and a release position, said lever precluding relative movement of said support structure with said pair of legs in said locked position and allowing pivotal movement between said support structure and said pair of legs in said release position.
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