JPH0293555U

JPH0293555U -

Info

Publication number: JPH0293555U
Application number: JP220989U
Authority: JP
Priority date: 1989-01-12
Filing date: 1989-01-12
Publication date: 1990-07-25

Description

[Brief explanation of drawings]

第１図は本考案に係るリニアアクチエータの第
１実施例の縦断面図、第２図は第１図のナツト部
材の１例の断面図、第３図は本考案に係るリニア
アクチエータの第２実施例の縦断面図である。符号の説明、１……リニアアクチエータ、２…
…棒状体、３……ナツト部材、４……ボール、６
……波動歯車、７……軸受、８……サーキユラス
プライン、９，１５……フレクスプライン、１０
，１９……波動発生器、１１，１６，１７……軸
受、１２，１８……カム環、２１……第２サーキ
ユラスプライン。 FIG. 1 is a longitudinal cross-sectional view of a first embodiment of the linear actuator according to the present invention, FIG. 2 is a cross-sectional view of an example of the nut member shown in FIG. 1, and FIG. FIG. 3 is a vertical cross-sectional view of the second embodiment. Explanation of symbols, 1... Linear actuator, 2...
... Rod-shaped body, 3 ... Nut member, 4 ... Ball, 6
... Wave gear, 7 ... Bearing, 8 ... Circular spline, 9, 15 ... Flex spline, 10
, 19... Wave generator, 11, 16, 17... Bearing, 12, 18... Cam ring, 21... Second circular spline.

Claims

[Claims for Utility Model Registration] (1) A threaded rod-shaped body is supported so that it can move linearly but not rotate, and a nut member is provided surrounding this rod-shaped body, and this nut member In a linear actuator that linearly moves a rod-shaped body by applying rotational motion, a circular spline formed in an annular shape surrounding the rod-shaped body and a flex spline made of a flexible material surrounding this spline are provided. and a wave gear consisting of a wave generator that deflects the flexspline into a non-circular shape to partially mesh with the circular spline and rotate the shape of the circular spline, and the flexspline is connected to the nut member. A linear actuator characterized by comprising: (2) The actuator according to claim 1, wherein the rod-shaped body is rotatably supported, and the rod-shaped body can be rotated by rotation of the nut member.