Adjustable support attachment for wheelchairs
US4458870A · kind A · utility
Inventors
Key dates
| Filing date | Apr 17, 1981 |
| Grant date | Jul 10, 1984 |
| Priority date | — |
| Expiry date | Apr 17, 2001 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61G5/1094
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention is an adjustable support attachment for wheelchairs having vertical or horizontal arm rest members. The support, which is intended to position articles and devices within variable and convenient access to the occupant of the chair, is attached to the arm rest member by means of a mounting base, to which one end of a base tube is releasably and rotatably swivel-mounted. On the other end of the base tube is fixed an adjustable friction joint allowing angular positioning of a lower arm tube in a vertical plane. An adjustable pivoting friction joint on the radially outer end of the lower arm tube allows fully circular positioning throughout a plane perpendicular to the lower arm, in combination with an adjustable friction joint, integral with the pivotal joint, which allows angular positioning of an upper arm member within the rotatable plane including the lower arm. A releasably telescoping rod allows extension of the upper arm in discrete adjustments and an adjustable friction joint fixed at the radially outer end of the rod allows angular tilting positioning of a mounting head within the rotatable plane including the upper arm. The mounting head includes a faci…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.