JPH01143357U

JPH01143357U -

Info

Publication number: JPH01143357U
Application number: JP3760288U
Authority: JP
Priority date: 1988-03-24
Filing date: 1988-03-24
Publication date: 1989-10-02

Description

[Brief explanation of the drawing]

第１図は本考案の第１実施例断面図。第２図は
第１図の矢視断面図。第３図は第２実施例断面
図。第４図は第３図の矢視断面図。第５図は従
来型断面図。第６図は第５図の矢視断面図。図において、１……工具本体、２……ナツト、
３……ビツトスピンドル、４……ビツト、５……
圧縮コイルばね、６……リング、７……支持孔、
８……ピン、９……ボール、１０……リテーナー
リング、１１……回転止め、１２……軸受、１３
……リテーナーリング、１４……回転止め、１５
……ハウジング、１６……リング、１７……クラ
ツチ、１８……ピン。 FIG. 1 is a sectional view of a first embodiment of the present invention. FIG. 2 is a sectional view taken along the arrow in FIG. FIG. 3 is a sectional view of the second embodiment. FIG. 4 is a sectional view taken along the arrow in FIG. 3. FIG. 5 is a sectional view of a conventional type. FIG. 6 is a sectional view taken along the arrow in FIG. In the figure, 1...tool body, 2...nut,
3... Bit spindle, 4... Bit, 5...
Compression coil spring, 6... ring, 7... support hole,
8... Pin, 9... Ball, 10... Retainer ring, 11... Rotation stopper, 12... Bearing, 13
... Retainer ring, 14 ... Rotation stopper, 15
...Housing, 16...Ring, 17...Clutch, 18...Pin.

Claims

[Scope of utility model registration request]

A compression coil spring of a nut 2 that adjusts the set length of the compression coil spring 5 in a tightening tool that adjusts the torque by changing the engagement force of a clutch portion that transmits driving force by adjusting the set length of the compression coil spring 5. 5 has a recess 9a into which a part of the ball 9 held by retainer rings 10 and 13, which cannot rotate with respect to the tool body 1 but is movable in the axial direction of the tool body, can be fitted. A tightening torque adjustment mechanism for a tightening tool, characterized in that the amount of movement due to rotation of the nut 2 is transmitted to a compression coil spring via the ball 9.