Document Type and Number:
Japanese Patent JPS4838599
Kind Code:
A
Abstract:
A vise having a fixed clamping jaw and a clamping carriage mechanically movable relative to the clamping jaw by means of a threaded spindle. Such vise is equipped with a fluid pressure operable amplifier, the amplifying pressure of which is conveyed to a high pressure chamber provided in the clamping carriage. The supply of pressure medium is controlled by valve means. These valve means include a valve sleeve arranged on the coupling shaft and furthermore include control bores provided in the clamping carriage. When the clamping carriage engages the work piece, the valve is opened by means of an axial relative motion of a coupling shaft which is connected with the spindle means of a disengageable clutch. The coupling shaft is operated by a crank handle which, when the clutch is engaged, also effects the mechanical feeding movement of the clamping carriage by means of the spindle.
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Application Number:
JP9297772A
Publication Date:
June 06, 1973
Filing Date:
September 18, 1972
Export Citation:
International Classes:
B25B1/10; B25B1/24; (IPC1-7): B25B1/00