The embodiments herein relate generally to devices which provide a mechanical advantage for moving goods. In particular, embodiments of the disclosed invention can be useful for transporting doors and windows.
A transport dolly is configured to move cargo. The transport dolly includes a first L-shaped support and a second L-shaped support attached to a hinge. A first wheel assembly is attached to the first L-shaped support. A second wheel assembly is attached to the second L-shaped support. In a first mode of operation the hinge is collapsed such that a first upper surface on the first L-shaped support is immediately adjacent to a second first L-shaped support. In a second mode of operation, the hinge is opened such that the first upper surface is distant from the second upper surface. In a third mode of operation, the cargo is placed on first L-shaped support and the second L-shaped support such that the first L-shaped support and the second L-shaped support contact three sides of the cargo.
In some embodiments, a first pad can be mechanically coupled to the first L-shaped support with a first pad backing. The first pad increases a first coefficient of friction between the cargo and the first L-shaped support. A second pad can be mechanically coupled to the second L-shaped support with a second pad backing wherein the second pad increases a second coefficient of friction between the cargo and the second L-shaped support.
In some embodiments, the first wheel assembly can include a first L-shaped support washer mechanically coupled to first L-shaped support. A first wheel can be mechanically coupled to a first L-shaped support washer with a first axel bolt. The first axel bolt is further secured to a first wheel with a first axel washer and a first lock nut. The second wheel assembly can further comprise a second L-shaped support washer mechanically coupled to second L-shaped support. A second wheel can be mechanically coupled to a second L-shaped support washer with a second axel bolt. The second axel bolt can be further secured to a second wheel with a second axel washer and a second lock nut.
The detailed description of some embodiments of the invention is made below with reference to the accompanying figures, wherein like numerals represent corresponding parts of the figures.
By way of example, and referring to
First L-shaped support 12A is further mechanically coupled to a first wheel assembly which includes first L-shaped support washer 26A that is mechanically coupled to first L-shaped support 12A. First wheel 28A is mechanically coupled to first L-shaped support washer 26A with first axel bolt 30A. First axel bolt 30A is further secured to first wheel 28A with first axel washer 32A and first lock nut 34A.
Transport dolly 10 further comprises second L-shaped support 12B mechanically coupled to second pad 14B with second pad backing 16B. Second L-shaped support 12B is mechanically coupled to hinge 18. Hinge 18 is further mechanically coupled to stop 20.
Second L-shaped support 12B is further mechanically coupled to a second wheel assembly which includes second L-shaped support washer 26B that is mechanically coupled to second L-shaped support 12B. Second wheel 28B is mechanically coupled to second L-shaped support washer 26A with second axel bolt 30B. Second axel bolt 30B is further secured to second wheel 28B with second axel washer 32B and second lock nut 34B. Second pad 14B increases a second coefficient of friction between the cargo and the second L-shaped support 12B.
Each support has a horizontal arm mechanically coupled to a vertical arm. Typically the vertical arm is longer than the horizontal arm to maneuver something much larger than it is thick, such as the door represented by cargo C.
Turning to
Persons of ordinary skill in the art may appreciate that numerous design configurations may be possible to enjoy the functional benefits of the inventive systems. Thus, given the wide variety of configurations and arrangements of embodiments of the present invention the scope of the invention is reflected by the breadth of the claims below rather than narrowed by the embodiments described above.
Number | Name | Date | Kind |
---|---|---|---|
4270741 | Hurst | Jun 1981 | A |
4695067 | Willey | Sep 1987 | A |
5318316 | Shurtleff | Jun 1994 | A |
6663123 | Kovacs | Dec 2003 | B1 |
8162329 | Openshaw | Apr 2012 | B1 |