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 Title: |
US4020914:
Stabilized three-wheeled vehicle
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Trautwein, Wolfgang; Huntsville, AL 35801
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| Assignee: |
None
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| Published / Filed: |
1977-05-03
/ 1976-02-23
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| Application Number: |
US1976000660729
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| IPC Code: |
Advanced:
B60G 21/00;
B62D 37/00;
B62D 61/08;
B62K 13/04;
IPC-7:
B62D 61/06;
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| ECLA Code: |
L60G300/122;
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| U.S. Class: |
Current:
180/210;
180/015;
280/267;
Original:
180/025.R;
280/112.A;
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| Field of Search: |
180/25 R,41
280/062,112 A
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| Priority Number: |
| 1976-02-23 |
US1976000660729 |
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| Abstract: |
A three-wheeled motorcycle in which two front wheels are interconnected with a conventional motorcycle frame by a parallelogram configured coupling assembly utilizing a pair of cross members pivotally connecting hubs of the front wheels and pivotally connected to the frame. Foot resting platforms are positioned on either side of the motorcycle, being fixedly connected to one of the cross members in the front and pivotally connected to the motorcycle frame at the rear.
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| Attorney, Agent or Firm: |
Phillips, C. A. ;
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| Primary / Asst. Examiners: |
Peters, Jr., Joseph F.; Siemens, Terrance L.
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| INPADOC Legal Status: |
None
Family Legal Status Report
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| Family: |
Show 6 known family members
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First Claim:
Show all 10 claims |
What is claimed is:
1. In combination with a motorcycle-type frame, engine, and rear drive wheel configuration, the improvement comprising:
- first and second spaced front wheels, each having a wheel mounting support;
- parallelogram coupling means comprising first and second, spaced one above the other, cross members pivotally interconnected between said wheel mounting supports of said front wheels, and each cross member being centrally and pivotally attached to said frame;
- a foot resting platform extending rearward from the lower of said cross members on each side of and spaced from the lower portion of said frame;
- connecting means for pivotally connecting the rear of said platform to said frame; and
- steering means pivotally supported by said frame, and including means pivotally connected to said wheel mounting supports of said front wheels for rotating said wheel mounting supports and said front wheels in unison about axes perpendicular to the spin axes of the wheels;
- whereby a rider may apply a stabilizing force between the frame and front wheels for holding the vehicle upright while stopped and while operating at low speeds without contacting the ground, and by leaning and applying a force by one of his feet to a portion of the platform on one side of the vehicle, the rider may effect a banking operation wherein the planes of all three wheels of the vehicle are parallel and said platform remains essentially parallel to the ground at all times.
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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 55 U.S. patent(s) that reference this one
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