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 Title: |
US4094372:
Motorized skateboard with uni-directional rear mounting
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Notter, Michael A.; San Francisco, CA 94112
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| Assignee: |
None
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| Published / Filed: |
1978-06-13
/ 1977-02-28
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| Application Number: |
US1977000772647
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| IPC Code: |
Advanced:
A63C 17/01;
A63C 17/12;
B62D 51/02;
IPC-7:
B62D 51/02;
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| ECLA Code: |
A63C17/01H2; A63C17/01; A63C17/12; B62D51/02;
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| U.S. Class: |
Current:
180/181;
Original:
180/001.G;
280/011.11E;
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| Field of Search: |
180/1 G
280/11.11 R,11.11 E,87.04 A
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| Priority Number: |
| 1977-02-28 |
US1977000772647 |
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| Abstract: |
A skateboard comprises a rider's platform having pairs of front and rear wheels mounted thereunder. Front wheels are mounted for limited universal movement relative to the platform whereas the rear wheels are mounted under the platform solely for vertical pivot movements about a pivot axis disposed in a vertically disposed plane which intersects the longitudinal axis of the skateboard. A bracket is attached to the rear wheel mounting and has a motor secured thereon for selectively driving only one of the rear wheels via a stepped-down drive train and a centrifugally actuated clutch. A normally open kill-switch is mounted on a throttle control adapted to be grasped by a rider whereby a magneto of the engine may be grounded to stop the engine when desired.
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| Attorney, Agent or Firm: |
Phillips, Moore, Weissenberger, Lempio & Majestic ;
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| Primary / Asst. Examiners: |
Peters, Jr., Joseph F.; Mar, Michael
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| Family: |
None
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First Claim:
Show all 16 claims |
I claim:
1. A skateboard comprising
- a horizontally disposed rider's platform,
- a pair of laterally spaced front wheels connected beneath a forward end of said platform,
- a pair of rear wheels,
- mounting means connecting said rear wheels beneath a rearward end of said platform for solely permitting vertical pivotal movements of said rear wheels about a pivot axis disposed in a vertically disposed plane intersecting a longitudinal axis of said skateboard, said mounting means comprising a bracket assembly pivotally mounted beneath the rearward end of said platform and having said rear wheels rotatably mounted thereon and wherein said bracket assembly extends rearwardly from said rear wheels,
- motor means, having an output shaft, mounted rearwardly on said bracket assembly and
- drive means connecting the output shaft of said motor means with only one of said rear wheels for selectively driving the same comprising a first sprocket secured to the output shaft of said motor means, a countershaft rotatably mounted on said bracket assembly, a second sprocket secured to a first end of said countershaft, an endless first chain entrained about said first and second sprockets, a third sprocket secured to a second end of said countershaft, a fourth sprocket connectible with said one rear wheel and an endless second chain entrained about said third and fourth sprockets.
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| Background / Summary: |
Show background / summary
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| Drawing Descriptions: |
Show drawing descriptions
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| Description: |
Show description
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| Forward References: |
Show 64 U.S. patent(s) that reference this one
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