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 Title: |
US4264082:
Stair climbing cart
[ Derwent Title ]
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Country:
Kind: |
US United States of America
A PATENT [FROM BEGIN UNTIL END 2000] or PATENT ISSUED AFTER 1ST PUB. WITHIN THE TVPP i
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| Inventor: |
FOUCHEY JR CHARLES J;
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| Assignee: |
FOUCHEY JR CHARLES J
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| Published / Filed: |
1981-04-28
/ 1979-03-26
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| Application Number: |
US1979000023975
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| IPC Code: |
Advanced:
B62B 5/02;
Core:
more...
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| ECLA Code: |
B62B5/02W;
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| U.S. Class: |
280/005.26;
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| Priority Number: |
| 1979-03-26 |
US1979000023975 |
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| Abstract: |
A hand truck is disclosed including unique wheel assemblies for supporting the truck and permitting it to move heavy loads up and down a flight of stairs. Each assembly having three wheels mounted in an equilateral triangle configuration for providing mechanical advantage in moving a load upstairs and braking action when moving the load downstairs. The axle for the wheel assemblies is rotatably mounted to the downwardly extending leg portions of a generally U-shaped heavy metal shroud which is fixed to the upright frame of the hand truck. The hand truck is provided with a locking mechanism for locking the wheel assemblies in a set position including sprockets having a plurality of locking positions mounted on the axle adjacent each wheel assembly. A spring biased lock bar is mounted in the shroud above the sprockets, and it is released for locking engagement with the sprockets by a handle and control linkage mounted to the truck frame thereby holding the truck in a desired inclined position.
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