JPS62195462U

JPS62195462U -

Info

Publication number: JPS62195462U
Application number: JP8466386U
Authority: JP
Priority date: 1986-06-03
Filing date: 1986-06-03
Publication date: 1987-12-12

Description

[Brief explanation of drawings]

第１図乃至第４図は本考案の一実施例を示し、
第１図及び第２図は異なる体勢を示す工具の断面
図、第３図は第１図の―線矢視断面図、第４
図は第２図―線矢視断面図、第５図は従来例
を示す工具の断面図である。１……本体、５……軸体、７……弾機、８……
螺旋溝、１１……ビツト、２３……回転機構、２
４……固定カム体、２５……カム球、２６……移
動カム体、２７……弾機、２９……保持孔、３０
，３１……回動規制カム面。 1 to 4 show an embodiment of the present invention,
Figures 1 and 2 are cross-sectional views of the tool showing different positions, Figure 3 is a cross-sectional view taken along the line - - of Figure 1, and Figure 4 is
The figures are a sectional view taken along the line in FIG. 2, and FIG. 5 is a sectional view of a conventional tool. 1... Main body, 5... Shaft body, 7... Bullet machine, 8...
Spiral groove, 11...bit, 23...rotation mechanism, 2
4... Fixed cam body, 25... Cam ball, 26... Moving cam body, 27... Bullet machine, 29... Holding hole, 30
, 31... Rotation regulating cam surface.

Claims

[Scope of utility model registration request]

Inside the cylindrical body 1, there is a shaft body 5 which protrudes outward in the axial direction from the tip of the body 1 and has a bit 11 at the tip.
is relatively movable in the axial direction, a spiral groove 8 is formed on the outer peripheral surface of the shaft body 5, and the shaft body biasing device biases the shaft body 5 in the direction of protruding from the body 1 within the body 1. 7
and a rotation mechanism 23 that engages with the spiral groove 8,
Only when the shaft body 5 is relatively pushed into the main body 1 via the bit 11, the rotation mechanism 23 causes the shaft body 5 to
In the tool for rotating the bit 11, the rotating mechanism 23 is fitted around the shaft body 5 so as to be relatively movable in the axial direction, and a fixed cam body 24 and a movable cam body 26 that are in contact with each other so as to be able to move toward and away from each other, and a rotating mechanism 23 that rotates the bit 11 side. It is held in the holding hole 29 formed in the cam body 26 and is engaged with the spiral groove 8, and when the shaft body 5 moves relative to the main body 1 in the axial direction, it moves on the spiral groove 8 in the longitudinal direction thereof. A cam ball 25 that rolls and a moving cam body 26
The fixed cam body 24, the cam ball 25
A movable cam body 26 and a bullet 27 are connected in the axial direction within the main body 1, and the fixed cam body 24 is fixed to the main body 1 side, and when the shaft body 5 is pushed into the main body 1, the fixed cam body 24 is fixed to the main body 1 side. The shaft body 5 is rotated by preventing relative rotation in the circumferential direction between the body 24 and the movable cam body 26, and the circumference of the fixed cam body 24 and the movable cam body 26 is rotated when the shaft body 5 is projected from the body 1. A tool characterized in that rotation regulating cam surfaces 30 and 31 that allow relative rotation in the direction and prevent the shaft body 5 from rotating are formed on opposing surfaces of the fixed cam body 24 and the movable cam body 26, respectively.