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US 12,497,789 B2Granted
Interlocking work platform system
AssigneeWerner Co.
InventorsFang Chen, Liang He, Ling Zhu
Life of this patent
Estimating the term…
Abstract
A work platform system having a first work platform. The first work platform having a first hook assembly and a first latch assembly. The system having a second work platform. The second work platform having a second hook assembly and a second latch assembly. The first work platform locked to the second work platform through the first hook assembly engaging with the second latch assembly and the first hook assembly in the use position. A method for using a work platform system. A method for producing a work platform.
Claims20
A work platform comprising:
- a plank extending longitudinally and having a first end and a second end;
- a first leg assembly rotatably attached to the first end of the plank, the first leg assembly having a first rail and a second rail and a first rung attached to the first rail and the second rail, wherein the first leg assembly is rotatable about a first hinge;
- a second leg assembly rotatably attached to the second end of the plank, the second leg assembly having a third rail and a fourth rail and a second rung attached to the third rail and the fourth rail, wherein the second leg assembly is rotatable about a second hinge;
- and
- a hook assembly and a latch assembly,
- wherein the hook assembly includes a hook crossbar slidably coupled to the plank adjacent the first end, the hook assembly slides between a use position where the hook crossbar extends beyond a perimeter of the plank between the first rail and the second rail of the first leg assembly and a stowed position where the hook crossbar is retracted below and within the perimeter of the plank, and
- wherein the latch assembly includes latch hooks coupled to the plank adjacent the second end.
4 more elements
A work platform comprising:
- a plank extending longitudinally and having a first end and a second end;
- a first leg assembly rotatably attached to the first end of the plank, the first leg assembly having a first rail, a second rail, and a first rung therebetween, wherein the first leg assembly is rotatable about a first hinge;
- a second leg assembly rotatably attached to the second end of the plank, the second leg assembly having a third rail, a fourth rail, and a second rung therebetween, wherein the second leg assembly is rotatable about a second hinge;
- and
- a hook assembly disposed adjacent the first end of the plank and a latch assembly disposed adjacent the second end of the plank,
- wherein the hook assembly includes a cross plate, a hook crossbar, and a first hook and a second hook extending between the cross plate and the hook crossbar, wherein the hook assembly is slidably coupled to the plank between a use position where the hook crossbar extends beyond a perimeter of the plank between the first rail and the second rail of the first leg assembly and a stowed position where the hook crossbar is retracted below and within the perimeter of the plank.
3 more elements
A work platform comprising:
- a plank extending longitudinally and having a first end and a second end;
- a first leg assembly rotatably attached to the first end of the plank about a first hinge, the first leg assembly having a first rail, a second rail, and a first rung therebetween;
- a second leg assembly rotatably attached to the second end of the plank about a second hinge, the second leg assembly having a third rail, a fourth rail, and a second rung therebetween;
- and
- a hook assembly disposed adjacent the first end of the plank and a latch assembly disposed adjacent the second end of the plank,
- wherein the hook assembly includes a cross plate, a hook crossbar, a first hook and a second hook extending between the cross plate and the hook crossbar, and a first block and a second block extending from the cross plate, wherein the hook assembly is slidably coupled to the plank, and
- wherein the work platform includes a first track and a second track in parallel and spaced relation with the first track and the first block of the hook assembly is slidably coupled with the first track and the second block of the hook assembly is slidably coupled with the second track such that the hook assembly is slidably coupled with the first track and the second track between a use position, where the hook crossbar extends beyond the work platform, and a stowed position, where the hook crossbar is retracted under the work platform.
4 more elements
Dependencies are inferred from the claim text.