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 Title: |
US4190263:
Wheelchair with shock absorber
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Powers, Samuel T.; Albuquerque, NM
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| Assignee: |
Albuquerque Patents, Ltd., Albuquerque, NM
other patents from ALBUQUERQUE PATENTS, LTD. (16840) (approx. 1)
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| Published / Filed: |
1980-02-26
/ 1978-05-22
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| Application Number: |
US1978000908245
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| IPC Code: |
Advanced:
A61G 5/10;
IPC-7:
B62M 1/14;
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| ECLA Code: |
A61G5/10; K61G5/10Z1;
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| U.S. Class: |
Current:
280/250.1;
267/248;
280/047.4;
280/286;
297/DIG.004;
Original:
280/242.WC;
267/020.A;
280/701;
280/286;
280/724;
297/DIG.4;
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| Field of Search: |
280/242 WC,289 WC,701,690,725,726,285,286,724
297/DIG. 4
267/20 A
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| Priority Number: |
| 1978-05-22 |
US1978000908245 |
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| Abstract: |
The invention consists of a device which can be mounted on a conventional wheelchair to provide shock absorbing qualities to the wheelchair. Each wheel on the wheelchair is removed from its standard mounting position with a shock absorbing device of this invention being used to mount each wheel in a new position spaced longitudinally from its standard position. The device of the invention has a lever with one hole in front which is attached to the axle of the wheelchair by means of a bolt which passes through the hole in the axle and a nut attached to the end of the bolt. Another hole is located centrally in the lever for mounting of the wheel by means of a second bolt and a second nut. At the opposite end of the lever a hole is provided through which a spring is attached. The opposite end of the spring is attached to a rigid member of the wheelchair. In this manner, the weight of the chair and its occupant is supported by the spring tension of the spring. When the wheel of the chair hits a bump, the spring may flex, thus absorbing the shock.
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| Attorney, Agent or Firm: |
O'Brien, Clarence A. ;
Jacobson, Harvey B. ;
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| Primary / Asst. Examiners: |
Silverstrim, John P.;
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| Family: |
None
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First Claim:
Show all 7 claims |
What is claimed as new is as follows:
1. In combination, a wheelchair and shock absorber, comprising: a rigid frame having a vertical frame member with an axle mounted thereon, a horizontal frame member attached to the lower portion of said vertical frame member; and wherein said shock absorber includes a lever member with one end of said lever member pivotally mounted on said axle, and wherein said wheel is rotatably mounted on said lever member at a point which is longitudinally spaced from the end of said lever member which is mounted on said axle, and a shock absorbing means which has one end attached to said lever member at a point which is longitudinally spaced from the end of said lever member which is mounted on said axle, the other end of said shock absorbing means being attached to one of said frame members; and further wherein said lever member comprises a first segment which extends for the entire length of said lever member, a second segment laterally spaced from and parallel to said first segment and extending from the center of said lever member to the end of said lever member which is longitudinally opposed to the point of attachment to said axle, and a third segment extending from the point of connection of said lever member to said axle to the middle of said lever member, said first and second segments of said lever member being connected by laterally extending connecting segment, said second and third segments being connected by a hollow tubular segment; and further wherein said lever member is attached to said axle by a bolt which passes laterally through said first segment and said thid segment.
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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 13 U.S. patent(s) that reference this one
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