Document Type and Number:
Japanese Patent JPS5420710
Kind Code:
B1
Abstract:
Apparatus consists of a differentially threaded sleeve surrounding and in threaded engagement with an adjustment rod which in turn is connected with an axially adjustable side trimmer knife-mounting in a side trimmer housing. An elongated nut, which is restrained from axial movement, is circumferentially mounted around the sleeve in threaded engagement therewith. Means are provided for selectively restraining the sleeve from axial movement relative to the adjustment rod during rotation of the sleeve. This permits the adjustment rod to move axially at a relatively high rate for coarse adjustment of the side trimmer knife. When the sleeve is free of axial-movement restraint during rotation, it moves axially in one direction while the adjustment rod moves axially in the opposite direction depending upon the direction of rotation of the sleeve. This causes the adjustment rod to move at a relatively low rate for fine adjustment of the side trimmer knife. The fine adjustment rate of movement is equal to the difference between the rate of axial movement of the sleeve and the rate of axial movement of the adjustment rod.
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Application Number:
JP823772A
Publication Date:
July 25, 1979
Filing Date:
January 21, 1972
Export Citation:
International Classes:
B23D19/04; B23D35/00; B26D7/26; (IPC1-7): B23D19/04; F16H25/20