JPS61139343U

JPS61139343U -

Info

Publication number: JPS61139343U
Application number: JP2133085U
Authority: JP
Priority date: 1985-02-19
Filing date: 1985-02-19
Publication date: 1986-08-29

Description

[Brief explanation of drawings]

第１図乃至第３図は本考案の実施例を示し、第
１図は一部切欠全体正面図、第２図は支持体の展
開図、第３図は従来技術の説明を兼用した移動体
と回転軸の嵌合状態を示す要部断面図である。１１：螺旋状溝、１：回転軸、２１：環状溝、
２；移動体、３：環状空隙部、４：鋼球支持体、
４１：鋼球支持穴、５：鋼球、６：係止部材、４
２：切欠。 1 to 3 show an embodiment of the present invention, FIG. 1 is a partially cutaway overall front view, FIG. 2 is a developed view of the support, and FIG. 3 is a moving body that also serves as an explanation of the prior art. FIG. 3 is a sectional view of a main part showing a fitted state of the rotary shaft and the rotary shaft. 11: Spiral groove, 1: Rotating shaft, 21: Annular groove,
2; moving body, 3: annular cavity, 4: steel ball support,
41: Steel ball support hole, 5: Steel ball, 6: Locking member, 4
2: Notch.

Claims

[Scope of utility model registration request]

a rotating shaft having a spiral groove carved on its outer periphery; a movable body having a plurality of annular grooves perpendicular to the axis formed at positions separated by a predetermined number of leads in correspondence with the spiral groove on the inner periphery; A steel ball support interposed in an annular gap between the shaft and the movable body, a plurality of steel ball support holes drilled at positions separated by a predetermined number of leads corresponding to the spiral groove of the support, and the support. It is comprised of a plurality of steel balls rotatably positioned and supported in the hole and housed between the spiral groove and the annular groove, and the movable body is configured to be able to reciprocate via the steel balls by rotation of the rotation shaft. In the reciprocating mechanism, a locking member is provided at a predetermined position on the outer periphery of the rotating shaft and protrudes to the annular gap, while a notch corresponding to the locking member is formed at an end of the support body, The support body, which moves together with the moving body due to the rotation of the rotating shaft, is locked by the locking member through the notch, so that the supporting body rotates following the rotation of the rotating shaft while the moving body is positioned at a predetermined position. A reciprocating mechanism characterized by the following configuration.