JPS62177282U

JPS62177282U -

Info

Publication number: JPS62177282U
Application number: JP6324086U
Authority: JP
Priority date: 1986-04-28
Filing date: 1986-04-28
Publication date: 1987-11-11

Description

[Brief explanation of the drawing]

第１図は本考案に係るリニアアクチユエータの
実施例を示す正面図、第２図は同平面図、第３図
は従来のリニアアクチユエータの正面図、第４図
は実施例において用いる側方磁気ヨークのビス挿
通用穴の形状を説明する平面図、第５図は中央磁
気ヨークのビス挿通用穴の形状を説明する平面図
である。１，１Ａ……中央磁気ヨーク、２Ａ，２Ｂ，２
Ｃ，２Ｄ……側方磁気ヨーク、３……可動コイル
、４……永久磁石、６……Ｌ字折り曲げ部。 Fig. 1 is a front view showing an embodiment of the linear actuator according to the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a front view of a conventional linear actuator, and Fig. 4 is used in the embodiment. FIG. 5 is a plan view illustrating the shape of the screw insertion holes in the side magnetic yokes, and FIG. 5 is a plan view illustrating the shape of the screw insertion holes in the central magnetic yoke. 1, 1A...Central magnetic yoke, 2A, 2B, 2
C, 2D... Side magnetic yoke, 3... Moving coil, 4... Permanent magnet, 6... L-shaped bent portion.

Claims

[Claims for Utility Model Registration] (1) A utility model comprising a central magnetic yoke, side magnetic yokes disposed on both sides of the central magnetic yoke, and a movable coil slidably provided on the central magnetic yoke. , in a linear actuator in which a permanent magnet that generates a magnetic field that acts perpendicularly to the direction of motion of the moving coil is integrated with the inner side of the side magnetic yoke by means of coupling and arrangement means such that the central magnetic yoke is sandwiched between the side magnetic yokes and the central magnetic yoke. A linear actuator characterized in that L-shaped bent portions are formed at both ends of the magnetic yoke so as to be in contact with the central magnetic yoke, thereby increasing the joint area between the central magnetic yoke and the side magnetic yokes. (2) The linear actuator according to claim 1, wherein the coupling arrangement means is a screw inserted through the central magnetic yoke and the L-shaped bent portion, and a nut screwed into the screw. (3) The linear actuator according to claim 2, wherein the screw insertion hole formed in the L-shaped bent portion is a U-shaped hole.