Title:
QUICKLY MOVABLE ELASTICALLY ENGAGING SCREW-AND-NUT MECHANISM
Document Type and Number:
WIPO Patent Application WO/1996/006292
Kind Code:
A1
Abstract:
A new type of screw-and-nut mechanism comprises a supporting seat, one or more semi-nuts and the actuating means thereof, characterized in that the engagement of internal thread on the semi-nut with external thread on the screw is started elastically, then completed and locked by a positive element, and that the disengagement thereafter of the related elements is accomplished positively. Such a mechanism can be used in various kinds of jacks, vices, sliding tables of machine tools, as well as other devices which is driven by a screw and desired to pass through its return travel quickly.
Inventors:
FAN CHAOLAI (CN)
Application Number:
PCT/CN1995/000068
Publication Date:
February 29, 1996
Filing Date:
August 18, 1995
Export Citation:
Assignee:
FAN CHAOLAI (CN)
International Classes:
B23Q5/40; B66F3/08; B25B1/12; B66F3/12; F16H25/20; F16H25/24; (IPC1-7): F16H25/20
Foreign References:
| CN2078210U | 1991-06-05 | |||
| CN2139872Y | 1993-08-11 | |||
| CN1065514A | 1992-10-21 | |||
| CN1047466A | 1990-12-05 | |||
| CN2065969U | 1990-11-21 | |||
| CN2057131U | 1990-05-16 |
Other References:
See also references of EP 0774599A4
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