JPS6182048U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案に係わる内燃機関のアイドル位
置検出スイツチの一実施例を示す断面図、第２図
は従来のアイドル位置検出スイツチの断面図であ
る。 １…取付ボデイ、１０…スプリング、１１…ス
ロツトルバルブシヤフト、１２…ストツパ、１７
…固定接点、２０…可動接点、２１…プツシユロ
ツド、２３…ハウジング、２４…密閉空間、２５
…小通路、２６…ピストン、２９…不活性流体、
Ａ，Ｂ…室。 FIG. 1 is a sectional view showing an embodiment of an idle position detection switch for an internal combustion engine according to the present invention, and FIG. 2 is a sectional view of a conventional idle position detection switch. 1...Mounting body, 10...Spring, 11...Throttle valve shaft, 12...Stopper, 17
... Fixed contact, 20... Movable contact, 21... Push rod, 23... Housing, 24... Sealed space, 25
...Small passage, 26...Piston, 29...Inert fluid,
A, B...room.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 常時は弾性部材によりスロツトルバルブシヤフ
トに連結されたストツパに対向する方向に付勢さ
れ、前記ストツパに押圧接触されることにより弾
性力に抗してスライドされるプツシユロツドと、
該プツシユロツドの反押圧接触側端部に設けられ
た可動接点と、該可動接点と相対向する位置に配
設された固定接点と、を前記ストツパに対する位
置が調節可能なハウジング内に内設して備え、前
記プツシユロツドのスライドに伴う可動接点と固
定接点との接触によりスロツトルバルブのアイド
ル位置を検出するようにした内燃機関のアイドル
位置検出スイツチにおいて、前記固定接点が配設
される空間であつて、前記プツシユロツドの反押
圧接触側端面から軸方向に所定長さの部分周りを
取り囲む密閉空間を前記ハウジング内に形成し、
該密閉空間内に不活性流体を封入する一方、該密
閉空間を小通路を介して連通可能な軸方向の２室
に区画し、前記プツシユロツドのスライド動作と
連動して前記密閉空間を軸方向にスライドするピ
ストンを該プツシユロツドに設けたことを特徴と
する内燃機関のアイドル位置検出スイツチ。 a push rod which is normally urged by an elastic member in a direction opposite to a stopper connected to the throttle valve shaft and is slid against the elastic force by being pressed into contact with the stopper;
A movable contact provided at the opposite end of the push rod to the push contact side and a fixed contact disposed at a position facing the movable contact are disposed within a housing whose position relative to the stopper is adjustable. In an idle position detection switch for an internal combustion engine, the idle position detection switch for an internal combustion engine is configured to detect the idle position of a throttle valve by contact between a movable contact and a fixed contact as the push rod slides, the space in which the fixed contact is disposed. , forming a sealed space in the housing surrounding a portion of a predetermined length in the axial direction from the end surface of the push rod on the opposite-to-press contact side;
While an inert fluid is sealed in the sealed space, the sealed space is divided into two chambers in the axial direction that can be communicated through a small passage, and the sealed space is moved in the axial direction in conjunction with the sliding movement of the push rod. An idle position detection switch for an internal combustion engine, characterized in that a sliding piston is provided on the push rod.