Title:
A SERVO-ASSIST DEVICE
Document Type and Number:
WIPO Patent Application WO/1999/028647
Kind Code:
A1
Abstract:
The invention relates to a servo-assist device including four coupling rods to form two pairs of symmetrical knuckle joint mechanisms (1, 2), and flexible bars (5) mounted on the pivot point in the vicinty of knuckle joint mechanisms, characterized in that oblique wedges (6) are connected with the common end points of the knuckle levers (1, 2) and that spring members (11) contact side sliders (8, 9) with the said oblique wedges.
Inventors:
ZHENG YUNFEI (CN)
DENG LIQIONG (CN)
DENG LIQIONG (CN)
Application Number:
PCT/CN1997/000137
Publication Date:
June 10, 1999
Filing Date:
November 28, 1997
Export Citation:
Assignee:
ZHENG YUNFEI (CN)
DENG LIQIONG (CN)
DENG LIQIONG (CN)
International Classes:
B60T13/02; B60T13/74; F16D65/14; F16D65/22; (IPC1-7): F16D65/14; F16C7/00
Domestic Patent References:
| WO1997013988A1 | 1997-04-17 |
Foreign References:
| CN2196704Y | 1995-05-10 | |||
| US2293375A | 1942-08-18 | |||
| US2319231A | 1943-05-18 | |||
| US3472344A | 1969-10-14 | |||
| US4179014A | 1979-12-18 |
Attorney, Agent or Firm:
CHINA SCIENCE PATENT & TRADEMARK AGENT LTD (Zhongke Building No.80, Haidian Roa, Haidain District Beijing 0, CN)
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