In one embodiment, a slab dolly for moving slabs of material includes a body adapted to support a slab of material, wheels that support the body, handles that extend to a rear of the body, and a leg that is pivotally connected to the body, the leg being adapted to drop down from the body and engage
In one embodiment, a slab dolly for moving slabs of material includes a body adapted to support a slab of material, wheels that support the body, handles that extend to a rear of the body, and a leg that is pivotally connected to the body, the leg being adapted to drop down from the body and engage a floor surface or stair steps to act as a pivot member about which the dolly can be pivoted to assist a user in moving the dolly up a flight of stairs.
대표청구항▼
1. A slab dolly for moving slabs of material, the dolly comprising: a body adapted to support a slab of material and including a front wall;wheels that support the body;handles that extend to a rear of the body; anda front leg that is pivotally attached to the front wall of the body, the leg being a
1. A slab dolly for moving slabs of material, the dolly comprising: a body adapted to support a slab of material and including a front wall;wheels that support the body;handles that extend to a rear of the body; anda front leg that is pivotally attached to the front wall of the body, the leg being adapted to pivot downward from a position in which it extends forward from the front wall to a position in which it is substantially parallel with the front wall so as to be able to engage a floor surface or a stair step to act as a pivot member about which the dolly can be pivoted to assist a user in moving the dolly up a flight of stairs. 2. The slab dolly of claim 1, wherein the body includes a slab securing mechanism that is adapted to support the slab of material in a vertical orientation. 3. The slab dolly of claim 2, wherein the slab securing mechanism includes a first lateral support and a second lateral support. 4. The slab dolly of claim 3, wherein the second lateral support is a pivoting component that is adapted to urge the slab against the first lateral support when the slab is supported by the mechanism. 5. The slab dolly of claim 4, wherein the second lateral support comprises a support member that includes a horizontal base and a vertical wall that form part of a rectangular gap into which the slab can be inserted. 6. The slab dolly of claim 5, wherein the support member is supported by pivot arms that are pivotally connected to both the support member and the body. 7. The slab dolly of claim 6, wherein the slab securing mechanism further includes a spring that maintains the support member in an upper orientation against the force of gravity. 8. The slab dolly of claim 2, wherein the first lateral support is pivotally connected to the body so that it can be folded down into a horizontal orientation in which it acts as a horizontal support platform. 9. The slab dolly of claim 1, wherein the wheels include front wheels and rear wheels. 10. The slab dolly of claim 1, wherein the handles comprise elongated shafts that extend to a front of the body and wheels that are attached to front ends of the elongated shafts, wherein the handles act as pivot members about which the dolly can be pivoted to assist a user in moving the dolly up the stairs. 11. The slab dolly of claim 10, wherein the elongated shafts are angled relative to the body such that they extend from a relatively high position to the rear of the body down to a relatively low position to the front of the body. 12. The slab dolly of claim 11, wherein the wheels attached to the elongated shafts contact or nearly contact the floor surface when the dolly rests on the floor surface. 13. The slab dolly of claim 1, wherein the front leg includes a first front leg and a second front leg that is longer than the first front leg, each front leg being pivotally attached to the front wall of the body and being pivotable downward from a position in which the leg extends forward from the front wall to a position in which it is substantially parallel with the front wall. 14. The slab dolly of claim 13, wherein the first front leg is adapted to engage the floor surface and the second front leg is adapted to engage the a stair steps. 15. The slab dolly of claim 13, wherein the front legs are adjustable in length. 16. The slab dolly of claim 1, wherein the dolly further includes a bottom leg that is pivotally attached to a base of the body, wherein the bottom leg can pivot downward to a position in which it is substantially perpendicular to the base. 17. The slab dolly of claim 13, wherein the second front leg comprises a spacer that is connected to its distal end with a hinge. 18. A method for moving a slab of material up stairs, the method comprising: supporting the slab on a body of a slab dolly;rolling the dolly backward along a floor surface until rear wheels of the dolly engage a first step of the stairs;lifting the rear of the body with handles of the dolly to pivot the body about wheels positioned in front of the body;pulling the dolly backward with the handles until the rear wheels rest on the first step;pushing down on the handles to lift the front of the dolly to cause a first front leg of the dolly to pivot downward; andpivoting the front of the dolly downward until the first front leg engages the floor surface and supports part of the weight of the dolly. 19. The method of claim 18, further comprising: lifting the rear of the body with the handles to pivot the body about the first front leg;pulling the dolly backward with the handles until the rear wheels rest on a second step of the stairs;pushing down on the handles to lift the front of the dolly and cause a second front leg of the dolly to pivot downward; andpivoting the front of the dolly downward until the second front leg engages the floor surface supports part of the weight of the dolly. 20. A method for moving a slab of material up stairs, the method comprising: supporting the slab on a body of a slab dolly;rolling the dolly backward along a floor surface until rear wheels of the dolly engage a first step of the stairs;lifting the rear of the body with handles of the dolly to pivot the body about wheels positioned in front of the body to cause a bottom leg of the dolly to pivot downward;pivoting the rear of the dolly downward until the bottom leg engages the floor surface and supports part of the weight of the dolly;pushing down on the handles to lift the front of the dolly and cause a first front leg of the dolly to pivot downward; andpivoting the front of the dolly downward until the first front leg engages the floor surface and supports part of the weight of the dolly. 21. The method of claim 20, further comprising: lifting the rear of the body with the handles to pivot the body about the first front leg and pulling the dolly backward until the rear wheels rest on the first step of the stairs;lifting the rear of the body with handles to pivot the body about the first front leg and enable the bottom leg to pivot downward;pivoting the rear of the dolly downward until the bottom leg engages the first step and supports part of the weight of the dolly;pushing down on the handles to lift the front of the dolly to cause a second front leg of the dolly to pivot downward; andpivoting the front of the dolly downward until the second front leg engages the floor surface and supports part of the weight of the dolly.
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이 특허에 인용된 특허 (12)
Trougouboff, Emile, Apparatus for handling heavy loads such as a trolley or a rolling chair for the handicapped.
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