FR2342823A1 - Ball screw jack with brake - has brake in form of washer on leading screw end to promote friction stopping rotation - Google Patents
Ball screw jack with brake - has brake in form of washer on leading screw end to promote friction stopping rotationInfo
- Publication number
- FR2342823A1 FR2342823A1 FR7606087A FR7606087A FR2342823A1 FR 2342823 A1 FR2342823 A1 FR 2342823A1 FR 7606087 A FR7606087 A FR 7606087A FR 7606087 A FR7606087 A FR 7606087A FR 2342823 A1 FR2342823 A1 FR 2342823A1
- Authority
- FR
- France
- Prior art keywords
- brake
- washer
- ball screw
- stopping rotation
- friction stopping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B1/00—Vices
- B25B1/06—Arrangements for positively actuating jaws
- B25B1/10—Arrangements for positively actuating jaws using screws
- B25B1/103—Arrangements for positively actuating jaws using screws with one screw perpendicular to the jaw faces, e.g. a differential or telescopic screw
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The ball screw jack (4, 5) mechanism may be deployed on a vice or on a machine tool elevator. It includes a braking system to obviate slippage. This arrangement enables the characteristics 95% efficiency of the ball screw to be deployed in practice. The leading end of the screw transmits thrust and movement to the mobile jaw (2) or elevator platform, and is equipped with a washer (6). The washer (6) serves both to transmit load to the mobile jaw (2) and to promote an anti-rotational friction at the mobile jaw interface. The vice arrangement may envisage the ball race (5) mounted on an extension of the static jaw (1) and traversed by the screw (4).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7606087A FR2342823A1 (en) | 1976-03-04 | 1976-03-04 | Ball screw jack with brake - has brake in form of washer on leading screw end to promote friction stopping rotation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7606087A FR2342823A1 (en) | 1976-03-04 | 1976-03-04 | Ball screw jack with brake - has brake in form of washer on leading screw end to promote friction stopping rotation |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2342823A1 true FR2342823A1 (en) | 1977-09-30 |
Family
ID=9169923
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7606087A Pending FR2342823A1 (en) | 1976-03-04 | 1976-03-04 | Ball screw jack with brake - has brake in form of washer on leading screw end to promote friction stopping rotation |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2342823A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2601274A1 (en) * | 1986-07-08 | 1988-01-15 | Renaudin Michel | Vice with undeformable component-support references |
-
1976
- 1976-03-04 FR FR7606087A patent/FR2342823A1/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2601274A1 (en) * | 1986-07-08 | 1988-01-15 | Renaudin Michel | Vice with undeformable component-support references |
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