JPS608876U

JPS608876U - speed sensor

Info

Publication number: JPS608876U
Application number: JP10117183U
Authority: JP
Inventors: 竹島　貞郎; 馬島　貴彦
Original assignee: 自動車機器株式会社
Priority date: 1983-06-30
Filing date: 1983-06-30
Publication date: 1985-01-22

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]

第１図は本考案に係るスピードセンサの一実施例を示す
縦断側面図、第２図はその■−■線断面図、第３図はそ
の要部拡大図、第４図ａ、　　ｂおよび第５図ａ、　　
ｂはセンサ両端の連結部でのシール材を拡大して示す断
面図およびその側面図、第６図および第７図はそのシー
ル材を用いた連結部の拡大図、第８図ａ、　　ｂないし
第１０図ａ、　　ｂはそのシール材の変形例を示す図で
ある。１０・・・・・・スピードセンサ、１１・・・・・・本
体ボディ、１２・・・・・・コイル取付部、１２ａ・・
・・・・嵌合孔、１５・・・・・・トランスミッション
、１６・・・・・・ケーブル、１７・・・・・・軸孔、
１８・・・・・・回転軸、１９・・・・・・環状磁石、
２０・・・・・・軸受用ブツシュ、２５・・・・・・コ
ア、２６・・・・・・コイル、２７ａ、　　２７ｂ−−
−−−−リード線、２８・・・・・・コイル組立体、２
８ａ・・・・・・小径部、２８ｂ・・・・・・大径部、
２８Ｃ・・・・・・段部、２９・・・・・・キャップ、
３０・・・・・・薄肉状壁部、３１・・・・・・Ｏリン
グ、３２．３３・・・・・・シール材。補正　昭５８．　８．１９実用新案登録請求の範囲を次のように補正する。Ｏ実用新案登録請求の範囲本体ボディ内で回転軸上に設けられた環状磁石を、この
軸と共に回転させることによってその外側に配設された
コイルにて電圧として取出し、回転軸の回転速度を検出
するスピードセンサにおいて、前記回転軸が嵌挿される
軸孔を有する本体ボディの外周部の一部でその軸線と直
交する方向に略円筒状を呈するコイル取付部を突設する
とともにこのコイル取付部内の嵌合孔底部を前記軸孔と
薄肉状壁部を介して対向させ、かつこのコイル取付部に
対しその嵌合孔に嵌め込まれる小径部およびこれに連続
する大径部を備え前記コイルを埋設してなるコイル組立
体と、このコイル組立体を被冠してその先端がコイル取
付部の外側に組付けられるキャップとを装着し、このキ
ャップ内でその内周部と前記コイル取付部先端の端面と
前記コイル組立体の大径部によって形成される段部とに
接するようにしてシール用の０リングを介装したことを
特徴とするスピードセンサ。Fig. 1 is a longitudinal side view showing an embodiment of the speed sensor according to the present invention, Fig. 2 is a sectional view taken along the line ■-■, Fig. 3 is an enlarged view of the main parts thereof, and Figs. 4 a, b, and 4. Figure 5a,
b is an enlarged cross-sectional view and side view of the sealing material at the joints at both ends of the sensor; FIGS. 6 and 7 are enlarged views of the joints using the sealing materials; and FIGS. FIGS. 10a and 10b are views showing modifications of the sealing material. 10...Speed sensor, 11...Main body, 12...Coil mounting part, 12a...
... Fitting hole, 15 ... Transmission, 16 ... Cable, 17 ... Shaft hole,
18... Rotating shaft, 19... Annular magnet,
20...Bearing bushing, 25...Core, 26...Coil, 27a, 27b--
--- Lead wire, 28... Coil assembly, 2
8a...small diameter part, 28b...large diameter part,
28C...Step part, 29...Cap,
30...Thin wall portion, 31...O ring, 32.33...Sealing material. Amended 1984. 8.19 The scope of claims for utility model registration is amended as follows. O Utility Model Registration Claim Scope A ring-shaped magnet installed on a rotating shaft within the main body is rotated together with this shaft, and a voltage is extracted by a coil placed outside the magnet, and the rotational speed of the rotating shaft is detected. In the speed sensor, a coil mounting portion having a substantially cylindrical shape is provided protruding in a direction perpendicular to the axis of the main body at a part of the outer periphery of the main body having a shaft hole into which the rotating shaft is inserted, and a coil mounting portion within the coil mounting portion is provided. The bottom of the fitting hole is opposed to the shaft hole through a thin wall part, and the coil mounting part is provided with a small diameter part that is fitted into the fitting hole and a large diameter part continuous thereto, and the coil is embedded therein. A coil assembly consisting of a coil assembly, and a cap that covers this coil assembly and whose tip is attached to the outside of the coil attachment part are attached, and within this cap, the inner peripheral part and the end face of the tip of the coil attachment part are attached. and a step portion formed by the large diameter portion of the coil assembly, and a sealing O-ring is interposed therebetween so as to be in contact with the step portion formed by the large diameter portion of the coil assembly.

Claims

[Scope of utility model registration request]

In a speed sensor that detects the rotational speed of the rotating shaft by rotating an annular magnet installed on the rotating shaft in the main body together with the rotating shaft and extracting it as a voltage with a coil disposed on the outside, the rotational speed of the rotating shaft is detected. A coil mounting portion having a substantially cylindrical shape is provided protruding in a direction perpendicular to the axis of a part of the outer periphery of the main body having a shaft hole into which the shaft is inserted, and the bottom of the fitting hole in this coil mounting portion is connected to the shaft. A coil assembly in which the coil is embedded, the coil assembly having a small diameter part that faces the hole through a thin wall part and that is fitted into the fitting hole of the coil mounting part and a large diameter part that is connected to the small diameter part. This coil assembly is covered with a cap whose tip is attached to the outside of the coil attachment part, and within this cap, the inner peripheral part, the end face of the tip of the coil attachment part, and the size of the coil assembly are attached. A speed sensor characterized by a bump having an O-ring for sealing interposed therein so as to be in contact with a stepped portion formed by a diameter portion.