Hydraulic pressure system
US4959958A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1988 |
| Grant date | Oct 2, 1990 |
| Priority date | — |
| Expiry date | Dec 23, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25J9/14
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A hydraulic pressure system for supplying a fluid under pressure includes a fluid pressure source for supplying the fluid pressure, an accumulator for storing part of the fluid from the fluid pressure source, the accumulator having a gas chamber filled with a high-pressure gas for pressurizing the stored fluid, and a structural member having a hermetically sealed space held in fluid communication with the gas chamber. The structural member comprises a link of an articulated mechanism interconnecting articulations, the link comprising a high polymer composite material and a metal material and having smaller-diameter portions joined to the articulations, respectively. The composite material comprises a prepreg which is either woven of weft threads extending parallel to an axis of the link and warp threads extending perpendicularly to the axis of the link, or woven of weft threads and warp threads which are inclined at about 54.75.degree. with respect to the axis of the link.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.