JPS6383745U

JPS6383745U -

Info

Publication number: JPS6383745U
Application number: JP17752686U
Authority: JP
Priority date: 1986-11-20
Filing date: 1986-11-20
Publication date: 1988-06-01

Description

[Brief explanation of drawings]

第１図は本考案の実施例に係る手動復帰型圧力
スイツチを示す概略構成図、第２図は第１図の動
作状態を示す説明図、第３図は第１図の一部材の
変形例を示す部分拡大図、第４図は従来の手動復
帰型圧力スイツチを示す概略構成図である。１……受圧ダイアフラム、２……レールダイア
フラム、１８……レバー部材、２０……軸支点、
２１……設定スプリング、２２……マイクロスイ
ツチ（応動スイツチ）、２２ａ……プランジヤ、
２３……係合爪、２５……リセツトアーム、２９
……係合部材、２９ａ……係合端部、２９ｂ……
テーパ部、３１……リターンスプリング、３２…
…調整ネジ。 Fig. 1 is a schematic configuration diagram showing a manual return type pressure switch according to an embodiment of the present invention, Fig. 2 is an explanatory diagram showing the operating state of Fig. 1, and Fig. 3 is a modification of one of the parts in Fig. 1. FIG. 4 is a schematic configuration diagram showing a conventional manual return type pressure switch. 1... Pressure receiving diaphragm, 2... Rail diaphragm, 18... Lever member, 20... Axis fulcrum,
21... Setting spring, 22... Micro switch (response switch), 22a... Plunger,
23... Engaging claw, 25... Reset arm, 29
...Engagement member, 29a...Engagement end, 29b...
Tapered portion, 31...Return spring, 32...
…Adjustment screw.

Claims

[Claims for Utility Model Registration] (1) The action of the diaphragm mechanism at the time of abnormal pressure displaces the lever member that is in contact with the plunger portion of the response switch to lock the response switch and release the lock state. In a manual return type pressure switch operated by operating a reset arm, the lever member is pivotally supported on a fixed part, and the plunger part of the response switch is brought into contact with one side of the lever member at the pivotally supported position. In addition, an engaging claw is provided on the other side, and an engaging member that engages with the engaging claw is provided on the reset arm, and the reset arm is elastically biased in a direction away from the engaging claw. A manual return type pressure switch featuring: (2) Claim 1 of the utility model registration characterized in that the depth of engagement of the engagement claw with the engagement member can be adjusted by an adjustment screw attached to the back surface thereof. Manual return type pressure switch. (3) The engaging member of the reset arm is formed of a rod-like member having an engaging end, and the engaging end is such that when a pressure of a certain value or more is applied to the diaphragm mechanism, The manual return type pressure switch according to claim 1 or 2, characterized in that it has a tapered portion for making engagement with the engagement pawl impossible. .