A device for transporting a ladder has first and second frame positions, the lower ends of which are pivotally mounted on an axle that also mounts a wheel for rolling along the ground. The upper ends of the frame portions are moveable toward and away from each other allowing the device to collapse f
A device for transporting a ladder has first and second frame positions, the lower ends of which are pivotally mounted on an axle that also mounts a wheel for rolling along the ground. The upper ends of the frame portions are moveable toward and away from each other allowing the device to collapse for storage. A hook is mounted on the upper end of each of the frame portions for attachment to adjacent rungs of the ladder. A strap connects the upper ends of the frame portion to prevent them from separating from each other beyond a given distance.
대표청구항▼
1. A device for transporting a ladder having a plurality of equally spaced parallel rungs, said device comprising a first frame having an upper end and a lower end,a second frame having an upper end and a lower end,an axle extending through apertures in said lower ends of said first and second frame
1. A device for transporting a ladder having a plurality of equally spaced parallel rungs, said device comprising a first frame having an upper end and a lower end,a second frame having an upper end and a lower end,an axle extending through apertures in said lower ends of said first and second frame wherein said upper end of said first and second frame are only moveable through an arc with respect to said axle,a wheel on said axle for moving said device across ground,a first hook on said upper end of said first frame for removably receiving a first rung of said ladder,a second hook on said upper end of said second frame for removably receiving a second rung of said ladder,a connector having a first end and a second end,said first end of said connector attached to said first frame at a location spaced from said lower end of said first frame,said second end of said connector attached to said second frame at a location spaced from said lower end of said second frame,said connector having a fixed length for preventing movement of said upper end of said first frame beyond a fixed distance from said upper end of said second frame, andsaid connector being collapsible wherein said first frame member is pivotable about said axle until said upper ends of said first and second frame members are adjacent each other. 2. The device of claim 1 wherein said first frame is longitudinally adjustably moveable between an extended configuration and a compressed configuration and includes a latch for releasably retaining said first frame member in said extended configuration. 3. The device of claim 1 and further comprising said first frame having a longitudinal member extending between said axle and said first hook,said longitudinal member including an elongate member and an extension portion longitudinally moveable with respect to said elongate members,said extension portion moveable between a contracted orientation and an extended orientation with respect to said elongate member, anda manually operable latch between said elongate member and said extension portion for releasably retaining said extension member in said extended orientation. 4. The device of claim 1 wherein said connector is a flexible strap having flexibility continuously along a length thereof. 5. The device of claim 1 and further comprising said first hook having generally parallel first and second hook ends, anda removable retainer extending across said first and second hook ends for retaining said hook around a rung of a ladder. 6. The device of claim 5 wherein said first and second hook ends each has a transverse hole thereon and said removable retainer is a pin extending through said first and second hook ends. 7. The device of claim 6 wherein said pin is a detent pin. 8. The device of claim 5 and further comprising said first frame having a longitudinal member extending between said axle and said first hook,said longitudinal member including an elongate member and an extension portion longitudinally moveable with respect to said elongate members,said extension portion moveable between a contracted orientation and an extended orientation with respect to said elongate member, anda manually operable latch between said elongate member and said extension portion for releasably retaining said extension member in said extended orientation. 9. The device of claim 8 wherein said connector is a flexible strap, having flexibility continuously along a length thereof. 10. The device of claim 9 wherein said first and second hook ends each has a transverse hole thereon and said removable retainer is a pin extending through said first and second hook ends. 11. The device of claim 10 wherein said pin is a detent pin. 12. A device for transporting a ladder having a plurality of equally spaced parallel rungs, said device comprising a first frame having an upper end and a lower end,a second frame having an upper end and a lower end,an axle extending through apertures in said lower ends of said first and second frame wherein said first and second frame are independently pivotable about said axle,a wheel on said axle for moving said device across ground,a first hook on said upper end of said first frame for removably receiving a first rung of said ladder,a second hook on said upper end of said second frame for removably receiving a second rung of said ladder,a connector between said first frame and said second frame,said connector having a fixed length and preventing movement of said upper end of said first frame beyond a fixed distance from said upper end of said second frame wherein said fixed distance is equal to a distance between two rungs of said ladder, andsaid connector being collapsible wherein said first frame member is pivotable about said axle until said upper ends of said first and second frame members are adjacent each other. 13. The device of claim 12 and further comprising said first frame having a longitudinal member extending between said axle and said first hook,said longitudinal member including an elongate member and an extension portion longitudinally moveable with respect to said elongate members,said extension portion moveable between a contracted orientation and an extended orientation with respect to said elongate member, anda manually operable latch between said elongate member and said extension portion for releasably retaining said extension member in said extended orientation. 14. The device of claim 13 wherein said connector is a flexible strap. 15. The device of claim 13 and further comprising said first hook having generally parallel first and second hook ends, anda removable retainer extending across said first and second hook ends for retaining said hook around a rung of a ladder. 16. The device of claim 15 wherein said first and second hook ends each has a transverse hole thereon and said removable retainer is a pin extending through said first and second hook ends. 17. The device of claim 16 wherein said pin is a detent pin.
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이 특허에 인용된 특허 (10)
Rainey Robert P. (P.O. Box 307 Atkins AR 72823), Adaptable hunting stand for ladder-like use or A-frame use.
Brookes Malcolm J. (30 E. 68th St. New York NY 10021) Sheridan James (Box 295-A Rte. 1 Englishtown NJ 07726) Spranger Douglas M. (23 Fiske Place Brooklyn NY 11215), Ladder aids.
Brookes Malcolm J. (30 E. 68th St. New York NY 10021) Sheridan James A. (Box 295-A ; Rte. 1 Englishtown NJ 07726) Spranger Douglas M. (23 Fiske Place Brooklyn NY 11215), Ladder caddy.
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