JPS6133339U

JPS6133339U - Switching device for valve actuator

Info

Publication number: JPS6133339U
Application number: JP11850384U
Authority: JP
Inventors: 茂光立森
Original assignee: 株式会社島津製作所
Priority date: 1984-07-31
Filing date: 1984-07-31
Publication date: 1986-02-28

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

図面は本考案の１実施例を示し、第１図は全体を示す断
面図、第２図は第１図におけるＡ矢視図、第３図は第１
図におけるＢ−Ｂ線断面図、第４図は第１図におけるＣ
−Ｃ線断面図、第５図は第１図におけるＤ−Ｄ線断面図
、第６図はカウンタギャ列を示す拡大図、第７図は第６
図におけるＥ−Ｅ線断面図、第８図は第６・図における
Ｆ−Ｆ線断面図、第９図は第６図におけるＧ−Ｇ線断面
図、第１０区は部分斜視図、第１１図は第１図における
Ｈ−Ｈ線断面図、第１２図および第１３図は作用説明図
である。１・・・アクチュエータ本体、２・・・スイッチング装
置、３・・・出力軸、９・・・入力軸、１１・・・トル
クリミットスイッチ機構、１２・：・位置リミットスイ
ッチ機構、１５・・・軸（回転軸）、１６・・・スイッ
チ押王子、１７・・・リミットスイッチ、７１・・・回
動面、７２・・・係合部、７３・・・係止爪、７４・・
・滑りクラッチ、７５・・・リセット機構。The drawings show one embodiment of the present invention, FIG. 1 is a sectional view showing the whole, FIG. 2 is a view taken in the direction of arrow A in FIG. 1, and FIG.
BB line sectional view in the figure, Figure 4 is C in Figure 1.
5 is a sectional view taken along line D-D in FIG. 1, FIG. 6 is an enlarged view showing the counter gear train, and FIG.
8 is a sectional view taken along line FF in FIG. 6, FIG. 9 is a sectional view taken along line G-G in FIG. 6, section 10 is a partial perspective view, The figure is a sectional view taken along the line H--H in FIG. 1, and FIGS. 12 and 13 are action explanatory views. DESCRIPTION OF SYMBOLS 1... Actuator body, 2... Switching device, 3... Output shaft, 9... Input shaft, 11... Torque limit switch mechanism, 12... Position limit switch mechanism, 15... Shaft (rotating shaft), 16... Switch pusher, 17... Limit switch, 71... Rotating surface, 72... Engaging portion, 73... Locking claw, 74...
・Slip clutch, 75...Reset mechanism.

Claims

[Scope of utility model registration request]

A position limit switch that has an input shaft into which changes in the operating position of the valve actuator body are input, and detects whether or not the operating position has reached a set limit position set at both ends of the stroke based on the movement of the input shaft. a torque limit switch mechanism that rotates a switch pusher in either direction to switch the corresponding switch when the torque acting on the valve actuator body reaches a set limit value; a rotating surface that is provided so as to be able to rotate in forward and reverse directions and has retaining portions at both ends in the rotation direction; and a rotating surface that is provided in elastic contact with this rotating surface and when the switch pusher is rotated to a switch switching position. a locking pawl that engages with the engaging portion to prevent the switch pusher from returning; and a locking pawl that is provided on the input shaft via a slipping clutch so that the input shaft is opposite to the direction of the switching operation by the switch pusher. 1. A switching device for a valve actuator, comprising: a reset mechanism that temporarily follows the input shaft to detach the retaining pawl from the retaining portion when the input shaft is rotated in the direction of rotation.