JPS59183126A - Temperature and abrasion sensor for brake - Google Patents

Temperature and abrasion sensor for brake

Info

Publication number
JPS59183126A
JPS59183126A JP5810483A JP5810483A JPS59183126A JP S59183126 A JPS59183126 A JP S59183126A JP 5810483 A JP5810483 A JP 5810483A JP 5810483 A JP5810483 A JP 5810483A JP S59183126 A JPS59183126 A JP S59183126A
Authority
JP
Japan
Prior art keywords
brake
movable piece
sensor
bimetal
temperature
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP5810483A
Other languages
Japanese (ja)
Inventor
Takashi Tamai
玉井 孝
Shigefumi Tomiyama
冨山 重文
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP5810483A priority Critical patent/JPS59183126A/en
Publication of JPS59183126A publication Critical patent/JPS59183126A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D66/00Arrangements for monitoring working conditions, e.g. wear, temperature
    • F16D66/02Apparatus for indicating wear
    • F16D66/021Apparatus for indicating wear using electrical detection or indication means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D66/00Arrangements for monitoring working conditions, e.g. wear, temperature
    • F16D2066/001Temperature

Abstract

PURPOSE:To form a sensor of a simple structure at a low cost, which has functions of detecting an abnormal temperature of brake oil with a bimetal and detecting the abrasion limit of a brake lining by utilizing the movement of a piston caused by abrasion of the brake lining. CONSTITUTION:A bimetal 5 for detecting the temperature of brake oil is disposed in the interior of a movable piece 6, and a conductive portion 7 made of metal is mounted on a part of the movable piece 6, the movable piece 6 being moved through a coiled spring 8. One terminal of the bimetal 5 is connected to the conductive portion 7, and further connected to an external outgoing lead wire 9 through the coiled spring 8. A metal conductive portion 11 is disposed along the inner surface of a case 10, and connected to the other terminal of the bimetal 5 and to the lead wire 9. A sensor is set at such a position that when a piston 14 advances up to the abrasion limit of a brake lining, the movable piece 6 is pressed by the coiled spring 8 to be lowered.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は自動車、゛鉄道車両などのブレーキ安全装置に
関するもので、ブレーキオイルの異常温度検知とブレー
キライニングの摩耗限界検知に適用されるブレーキの温
度、摩耗度センサに関するものである。
DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a brake safety device for automobiles, railway vehicles, etc., and is applied to detecting abnormal temperature of brake oil and detecting wear limit of brake lining. The present invention relates to a wear sensor.

従来例の構成とその問題点 従来例としては、第1図に示すようにブレーキライニン
グ1の摩耗vc成じてセンサの先端部も一緒に削られて
行さ、ひいては樹脂成形枠体3内に設置している金属リ
ード線2が断線することにより、上記ブレーキライニン
グ1の摩耗限界を検知するセンサが知られている。しか
し、これは使い捨てのセンサであること、!たブレーキ
ライニング1の摩耗限界しか検知できないという問題点
を有している。
Structure of the conventional example and its problems In the conventional example, as shown in FIG. A sensor is known that detects the wear limit of the brake lining 1 when the installed metal lead wire 2 breaks. But, this is a disposable sensor! This method has a problem in that only the wear limit of the brake lining 1 can be detected.

一方、プレーキノステムの安全性面から、特に下り坂に
おいてブレーキを連続使用した時に生じるペーパーロッ
ク(ブレーキオイルが異常温度上昇することにより、内
部に気泡が発生してブレーキが効かなぐ々る状態)を未
然に防止するために。
On the other hand, in terms of the safety of the brake system, paper locks occur when the brakes are used continuously, especially when going downhill (abnormal temperature rise in the brake oil causes air bubbles to form inside, causing the brakes to become sluggish and ineffective). To prevent this from happening.

ブレーキオイルの異常温度上昇を検知するセンサが望1
れている。
A sensor that detects abnormal temperature increases in brake oil is desirable.
It is.

尚、第1図において4は引出リード線、aはブレーキラ
イニングの初期位置、bHブレーギライニングが摩耗限
界まできた時の位置を示す。
In FIG. 1, 4 indicates the lead wire, a indicates the initial position of the brake lining, and b indicates the position when the brake lining reaches its wear limit.

発明の目゛的 本発明はこのような点に鑑みてなされたものでアリ、ブ
レーキオイルの異常温度検知とブレーキライニングの摩
耗限界検知との両機能を有するブレーキの温度、摩耗度
センサを提供するものである。
OBJECTS OF THE INVENTION The present invention has been made in view of the above points, and provides a brake temperature and wear degree sensor that has both the functions of detecting abnormal temperature of brake oil and detecting wear limit of brake lining. It is something.

発明の構成 本発明におけるブレーキの温度、摩耗度センサの構成は
、ブレーキオイルの温度を検知するためにバイメタル全
センサ本体の適当な位置に設置し。
Structure of the Invention In the structure of the brake temperature and wear rate sensor in the present invention, the sensor is installed at an appropriate position on the bimetal sensor body to detect the temperature of the brake oil.

さらにピストンに押圧される可動片を有し、ブレーキラ
イニングの摩耗によりピストンが移動した場合にピスト
ンに押圧された可動片が移動するような構成とし、この
時接点部が開放または短絡することにより摩耗限界?検
知でさるような機構を有して構成される。
Furthermore, it has a movable piece that is pressed by the piston, and when the piston moves due to wear of the brake lining, the movable piece that is pressed by the piston moves. At this time, the contact part opens or shorts, thereby preventing wear. limit? It is constructed with a mechanism that allows detection.

実施例の説明 以下、本発明の一実施例を第2図とともに説明する。Description of examples An embodiment of the present invention will be described below with reference to FIG.

第2図に示すように、ブレーキオイルの温度検知全行う
バイメタル5を可動片6の内部に設置し。
As shown in FIG. 2, a bimetal 5 for detecting the temperature of brake oil is installed inside the movable piece 6.

この可動片6の一部に金属よりなる導電部7を設けてお
り、かつこの可動片6はコイルノ々ネ8を介して移動で
さるような構Fy:、になっている。そして。
A conductive portion 7 made of metal is provided in a part of the movable piece 6, and the movable piece 6 is configured to be moved via a coil nozzle 8. and.

上記バイメタル5の一方の端子は上記金属よりなる導電
部7に接続され、さらに上記コイル/Cネ8を介して外
部引出リード線9と接続されている。
One terminal of the bimetal 5 is connected to the conductive portion 7 made of the metal, and further connected to an external lead wire 9 via the coil/C cable 8.

他方、センサ本体のケース10の内面に泪って金属導電
部11を設け、この金属導電部11(l″l:/ζイメ
タル5の他方の端子と接続されているとともに外部引出
リード線9に接続されている。寸だ、上記センサ本体の
ケース10と)くイメタル5を内部に設置した可動片6
とHoリング12を介してフルレーキオイルが内部に浸
透してこないように構成されている。13はセンサ本体
のケース10の内面に設けられた絶縁ノくイブである。
On the other hand, a metal conductive part 11 is provided on the inner surface of the case 10 of the sensor body, and is connected to the other terminal of the metal 5 and connected to the external lead wire 9. It is connected to the case 10 of the sensor body mentioned above and the movable piece 6 with Kuimetal 5 installed inside.
The structure is such that full rake oil does not penetrate inside through the Ho ring 12. 13 is an insulating knob provided on the inner surface of the case 10 of the sensor body.

次に、このセンサの動作特性について説明する。Next, the operating characteristics of this sensor will be explained.

このセンサの取付場所は、第3図に示すようニフ゛レー
キライニング(図示せず)ヲ1駆動さぜるピストン14
の(illj面部で、しかもブレーキライニングの摩耗
によりピストン14が前方に移動して行くため、ブレー
キライニングの摩耗限界寸でピストン14が前方に移動
した時、・ぐイメタル5を設置した可動片6がコイルバ
ネ8に押され下方に移動する位置に設置する。第3図で
15はブレーキオイル、16はブレーキ本体の支持枠、
またQ(t−Jブレーキライニングが初期の時のピスト
ン後部の位置、dはブレーキライニングが摩耗限界寸で
きた時のピストン後部の位置を示している。そして、ブ
レーキライニングが摩耗限界になる1では、ピストン1
4の側面で可動片6が上方に押されているため、可動片
6に設けた金属導電部7とケース10内面に設けた金属
導電部11とはオープンの状態になっており、ブレーキ
オイル15の異常温度の検知はバイメタル5により検出
することができる。寸だ、ブレーキライニングが摩耗限
界になると、ピストン14が前方に移動するため、可動
片6がコイルバネ8に押されて下方に移動し、可動片6
に設けた@属導電部7とケース1o内面に設けた金属導
電部11とがショートすることによりブレーキライニン
グの摩耗限界を検出することができる。
This sensor is installed at the piston 14 that drives the Niffrake lining (not shown) as shown in Figure 3.
Since the piston 14 moves forward due to wear of the brake lining, when the piston 14 moves forward at the wear limit of the brake lining, the movable piece 6 on which the metal 5 is installed moves. It is installed in a position where it is pushed downward by the coil spring 8. In Fig. 3, 15 is the brake oil, 16 is the support frame of the brake body,
Also, Q (t-J) indicates the position of the rear part of the piston when the brake lining is in its initial stage, and d indicates the position of the rear part of the piston when the brake lining has reached its wear limit. , piston 1
Since the movable piece 6 is pushed upward by the side surface of the case 10, the metal conductive part 7 provided on the movable piece 6 and the metal conductive part 11 provided on the inner surface of the case 10 are in an open state, and the brake oil 15 The abnormal temperature can be detected by the bimetal 5. When the brake lining reaches its wear limit, the piston 14 moves forward, and the movable piece 6 is pushed by the coil spring 8 and moves downward, causing the movable piece 6 to move downward.
The wear limit of the brake lining can be detected by short-circuiting between the conductive portion 7 provided on the inner surface of the case 1o and the metal conductive portion 11 provided on the inner surface of the case 1o.

ここで、内部構成については、ブレーキライニングの摩
耗限界時の可動片の移動により、回路がオープンになる
ことによって検出する構成も別途設計することがでさる
ものである。
Regarding the internal configuration, it is possible to separately design a configuration that detects when the circuit becomes open due to the movement of the movable piece when the brake lining reaches its wear limit.

発明の効果 本発明によるセンサの効果(は次の通りである。Effect of the invention The effects of the sensor according to the present invention are as follows.

(1)  本発明のセンサは、・くイメタルによるフ゛
レー、キオイルの異常温度を検知する機能と、ブレーキ
ライニングの摩耗によるピストンの位置の移動を利用し
てブレーキライニングの摩耗限界全検知する機能との両
機能を兼ね備えたセンサとして、極めて簡単な構成によ
り安価に提供することができる。
(1) The sensor of the present invention has a function of detecting abnormal temperatures of brake oil and brake oil using a double metal, and a function of detecting the full wear limit of the brake lining by using the movement of the piston position due to wear of the brake lining. As a sensor that has both functions, it can be provided at low cost with an extremely simple configuration.

(11)本発明のセンサは、可動片の先端部に/Cイメ
タルを設置することができるので、ブレーキオイルの異
常温度の検知に(は、熱ひけも少なく正確に、しかも応
答性良く検知することかでさる。
(11) Since the sensor of the present invention can install /Cimetal at the tip of the movable piece, it is possible to detect abnormal brake oil temperature (accurately with little heat shrinkage and with good responsiveness). It's a monkey.

(iiD  本発明のセンサは、ブレーキオイルの異常
温度検知にバイメタル全周いているため、極めて安価に
提供でさるとともに、例えば運転者に警報表示する時の
回路を直接駆動するCとができる。
(iiD) Since the sensor of the present invention has a bimetal all around it for detecting the abnormal temperature of the brake oil, it can be provided at an extremely low cost and can also be used to directly drive a circuit when displaying a warning to the driver, for example.

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

第1図は従来のブレーキライニングの摩耗限界全検知す
るセンサの断面図、第2図は本発明に係るセンサの一実
施例を示す断面図、第3図は同センサの取付状態を示す
断面図である。 5・・・・・・バイメタル、6・・・・・・可動片、7
.11・・・・接点部(金属導電部)、14−・・ピス
トン、15・・・・・ブレーキオイル。 代理人の氏名 弁理士 中 尾 敏 男 ほか1名第1
図 (Lb 第2図
Fig. 1 is a sectional view of a conventional sensor that detects the full wear limit of brake linings, Fig. 2 is a sectional view showing an embodiment of the sensor according to the present invention, and Fig. 3 is a sectional view showing how the sensor is installed. It is. 5... Bimetal, 6... Movable piece, 7
.. 11...Contact part (metal conductive part), 14-...Piston, 15...Brake oil. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure (Lb Figure 2

Claims (1)

【特許請求の範囲】[Claims] ブレーキオイルの温度検知を行うバイメタルと、ブレー
キライニングの摩耗により移動するピストンに押圧され
た移動可能な可動片とを有し、かつ上記可動片の移動で
接点部を開放または短絡させる機構とを一体化したこと
を特徴とするブレーキの温度、摩耗度センサ。
It has a bimetal that detects the temperature of brake oil, a movable piece pressed by a piston that moves due to wear of the brake lining, and a mechanism that opens or shorts the contact part by moving the movable piece. A brake temperature and wear sensor that is characterized by:
JP5810483A 1983-04-01 1983-04-01 Temperature and abrasion sensor for brake Pending JPS59183126A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5810483A JPS59183126A (en) 1983-04-01 1983-04-01 Temperature and abrasion sensor for brake

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5810483A JPS59183126A (en) 1983-04-01 1983-04-01 Temperature and abrasion sensor for brake

Publications (1)

Publication Number Publication Date
JPS59183126A true JPS59183126A (en) 1984-10-18

Family

ID=13074648

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5810483A Pending JPS59183126A (en) 1983-04-01 1983-04-01 Temperature and abrasion sensor for brake

Country Status (1)

Country Link
JP (1) JPS59183126A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62237125A (en) * 1986-04-07 1987-10-17 Sumitomo Electric Ind Ltd Use limit sensor for friction brake
EP2092284A4 (en) * 2006-11-30 2015-07-15 Petra Wadström Temperature recorder

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4816479U (en) * 1971-07-06 1973-02-24

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4816479U (en) * 1971-07-06 1973-02-24

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62237125A (en) * 1986-04-07 1987-10-17 Sumitomo Electric Ind Ltd Use limit sensor for friction brake
EP2092284A4 (en) * 2006-11-30 2015-07-15 Petra Wadström Temperature recorder

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