Title:
締め付け装置
Document Type and Number:
Japanese Patent JP4326185
Kind Code:
B2
Abstract:
A clamping apparatus for fixing and non-rotatably clamping threaded shafts, particularly threaded shafts used as electrodes for eroding threads, comprises a hollow cylindrical shaft with a clamping sleeve member located at its front end. The clamping sleeve member has a central bore and a rectangular aperture opening into that central bore. A rectangular clamping member is slidably received in the aperture and comprises at its front surface, facing the central bore, a number of thread convolutions matching the thread convolutions of the shaft to be clamped. For moving the clamping element towards a threaded shaft received in the central bore, a rotating collar is provided, located around the outside of the clamping sleeve member, and having a an inner circular surface with a diametrically gradually enlarging recessed portion into which the clamping element protrudes. By rotating the collar, the clamping element is radially moved toward a threaded shaft inserted into the bore, until the thread convolutions of the clamping element engage the thread convolutions of the shaft in the bore.
Inventors:
Carl Fleece
Application Number:
JP2002106927A
Publication Date:
September 02, 2009
Filing Date:
April 09, 2002
Export Citation:
Assignee:
EROWA AG
International Classes:
B23H7/26; B25B15/00; B25B5/14; F16B37/08
Domestic Patent References:
| JP10225823A | ||||
| JP52034484A | ||||
| JP3208523A | ||||
| JP61284305A | ||||
| JP63300805A | ||||
| JP62166906A | ||||
| JP61201745U | ||||
| JP37006603B1 |
Attorney, Agent or Firm:
Kosaku Sugimura