Arching mechanism
US5397164A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 17, 1992 |
| Grant date | Mar 14, 1995 |
| Priority date | — |
| Expiry date | Jan 17, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60N2/6673
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Arching mechanism, for instance for backrests of seats, medical or orthopaedic apparatus or casings and the like, with a pressure element wherein at least one traction element connected with a tensioning mechanism engages, which, when the mechanism is actuated can produce bulging by preserving a relative elevation of apex of the convexity; the arching mechanism can comprise a frame with inserted pressure elements actuatable by adjusting device(s), whereby frame segments are length-variable pressure elements; traction elements provided with tensioning mechanism can engage a slitted, overlapping or bellows-like bulging body for the opening and closing of these areas, which produces a curving of the bulging body in a predetermined direction or directions. (FIG. 1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.