 |
|
|
|
|
|
 Title: |
US4527829:
Foldable wheel chair, especially for invalids
[ Derwent Title ]
|
| Country: |
US United States of America
|
| |
| Inventor: |
Fanslau, Udo; Hamburg, Germany
Grosche, Norbert; Jork, Germany
|
| Assignee: |
Messerschmitt-Boelkow-Blohm Gesellschaft mit beschraenkter Haftung, Munich, Germany
other patents from MESSERSCHMITT-BOLKOW-BLOHM GMBH (368505) (approx. 950)
News, Profiles, Stocks and More about this company
|
| Published / Filed: |
1985-07-09
/ 1982-05-24
|
| Application Number: |
US1982000381523
|
| IPC Code: |
Advanced:
A61G 5/08;
A61G 5/10;
A61G 7/10;
B62B 5/04;
A61G 5/12;
IPC-7:
A47C 4/20;
A61G 5/00;
|
| ECLA Code: |
A61G7/10A2; A61G5/08; A61G5/10A; A61G5/10B; A61G5/10S2; K61G5/08A6; K61G5/12A; K61G220/10;
|
| U.S. Class: |
Current:
297/017;
297/016.1;
297/029;
297/051;
297/DIG.004;
Original:
297/017;
297/016;
297/029;
297/051;
297/346;
297/347;
297/DIG.4;
|
| Field of Search: |
297/346,347,16,17,29,30,51,52,53,54,DIG. 4,335,337
|
| Priority Number: |
|
| Abstract: |
The present wheel chair, especially for invalids, is foldable in a vertical direction rather than horizontally to transform the chair into a very compact package. For this purpose all foldable components of the chair are equipped with journals having journal axes extending perpendicularly to a vertical central plane of symmetry of the chair. Further, the seat is vertically liftable and also horizontally guided on guide tracks (18) extending in parallel to the plane of symmetry of the chair. The guide tracks (18) are movable back and forth on guide rail sections (17) which are pivoted to the top of the support structure (4) of the chair. Hydraulic piston cylinder drives are connected to all chair components which are movable under a loaded condition with a person sitting in the chair. The chair seat is also divided so that the chair may be moved directly over a toilet seat, for example. By raising the chair seat sufficiently above the arm rests in the aisle of an aircraft or bus, a person may be transported directly to a passenger seat with the aid of the present chair.
|
| Attorney, Agent or Firm: |
Fasse, W. G. ;
Kane, Jr., D. H. ;
|
| Primary / Asst. Examiners: |
Lyddane, William E.; Binder, Mark W.
|
| Maintenance Status: |
E2 Expired Check current status
|
| INPADOC Legal Status: |
Show legal status actions
Family Legal Status Report
|
| Family: |
Show 9 known family members
|
First Claim:
Show all 16 claims |
What is claimed is:
1. A foldable wheel chair having a central plane of substantial symmetry extending vertically through the chair, comprising base means (2, 3), foldable components including a bipartite support structure (4) normally extending vertically from said base means, seat means (5) supported by said bipartite support structure (4), backrest means (6, 7) secured to said seat means, wherein said backrest means comprise a lower backrest portion (6) and an upper headrest portion (7), footrest means (8) secured to said seat means (5), horizontally extending journal means extending perpendicularly to said central plane of substantial symmetry and connected to said foldable components for folding said foldable components, guide track means (18) secured to said seat means (5), said guide track means extending in parallel to said vertical central plane, and guide rail sections (17) pivoted to said support structure (4) and sliding in said guide track means for sliding said seat means horizontally back and forth, said horizontally extending journal means for folding said foldable components comprising first journal axle means (25) for journalling said upper headreast portion (7) back (arrow 26) against said lower backrest portion (6), second journal axle means (30) for journalling said lower backrest portion (6) down (arrow 31) against said seat means (5), third journal axle means (35) for journalling said footrest means (8) back (arrow 33) under said seat means (5), fourth journal axle means (37) for journalling said support structure (4) forward into said base means (2), and fifth journal axle means (39) for journalling said seat means (5) down to said base means (2), so that said guide track means (18) slies back in said guide rail sections (17) wherein said horizontally extending journal means include locking means for maintaining an operative position.
|
| Background / Summary: |
Show background / summary
|
| Drawing Descriptions: |
Show drawing descriptions
|
| Description: |
Show description
|
| Forward References: |
Show 29 U.S. patent(s) that reference this one
|
|
