JPS61249863A - Brake release condition detecting device - Google Patents
Brake release condition detecting deviceInfo
- Publication number
- JPS61249863A JPS61249863A JP9080285A JP9080285A JPS61249863A JP S61249863 A JPS61249863 A JP S61249863A JP 9080285 A JP9080285 A JP 9080285A JP 9080285 A JP9080285 A JP 9080285A JP S61249863 A JPS61249863 A JP S61249863A
- Authority
- JP
- Japan
- Prior art keywords
- brake
- hydraulic
- section
- hydraulic pressure
- air
- 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
Links
Landscapes
- Braking Systems And Boosters (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は、ブレーキ装置におけるブレーキ緩解検知装置
に係り、＃に空気ブレーキ機構とバネブレーキ機構を一
体化しな空油変換式ブレーキ装置に好適なブレーキ緩解
検知装置に関するものである。[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a brake release/relaxation detection device in a brake device, and is a brake suitable for an air-oil conversion type brake device that integrates an air brake mechanism and a spring brake mechanism. This invention relates to a decomposition detection device.
空油変換式ブレーキ装置としては、特開昭５５−１６０
６４４号公報、特開昭５５−］］６０６４５号公報、特
開昭５５−１６０６４６号公報が公知である。該空油変
換式ブレーキ装置を図によって説明する。第２図は従来
のブレーキ緩解検知装置を備えたブレーキ装置を示す回
路図である。As an air-oil conversion type brake device, JP-A-55-160
Publication No. 644, Japanese Patent Application Laid-open No. 55-]] No. 60645, and Japanese Patent Application Laid-open No. 160646-1987 are known. The air-oil conversion type brake device will be explained with reference to the drawings. FIG. 2 is a circuit diagram showing a brake device equipped with a conventional brake release detection device.
同図ｔこおいて、１は空気ブレーキ部で、空気ブレーキ
配管７を介して供給さｊる圧縮空気によってロット３を
図中右方向へ移動させて制動を行なう。In the figure, reference numeral 1 denotes an air brake unit, which uses compressed air supplied through an air brake pipe 7 to move the lot 3 to the right in the figure and perform braking.
２はばねブレーキ部で、内部に設置さまたばねかばねブ
レーキ配管８を介して圧縮空気を排気することによりＨ
記ロッド３ｔこ掛仲するピストンを図中右方向へ移動さ
せる。該ピストンの動作によってロッド３を移動させ制
動を行なうものである。2 is a spring brake part, which is installed inside and exhausts compressed air through spring brake piping 8.
3t moves the piston to the right in the figure. The rod 3 is moved by the movement of the piston to perform braking.
なお、制動動作については、油圧部４の油が前記ロッド
３の動作によって移動するピストンによって昇圧さｒる
。そして、該圧油がキャリパシリンダ５を動作させて、
ブレーキディスク６をつかむことにより制動を行なうも
のである。ところで、このような構成のブレーキ装置に
おいて、その緩解検知すなわち、ブレーキの作動状況の
把握は前記空気ブレーキ配管７およびばねブレーキ配管
８ｔこそｊぞ１圧カスイッチ９．９′を設け、該各配管
の圧力変動を該圧力スイッチ９．９りこ接続さまた表示
灯］ ０ 、 ］ Ｏ’の点灯状態ｔこより判別さｊて
いた。しかし、前述のような構成においては、空気ブレ
ーキ配管７あるいはばねブレーキ配管８の圧力がブレー
キ緩解状態であっても、油圧部４の固渋ｔこよって内部
圧力が低下せず、キャリパシリンダ５が制動状態のまま
となり、この状態で走行しようとするとブレーキ装置自
体の損傷は免ｎないという不具合があった。Regarding the braking operation, the pressure of the oil in the hydraulic section 4 is increased by the piston moved by the operation of the rod 3. Then, the pressure oil operates the caliper cylinder 5,
Braking is performed by gripping the brake disc 6. By the way, in a brake device having such a structure, in order to detect the release of the brake, that is, to grasp the operating status of the brake, a pressure switch 9,9' is provided in each of the air brake pipe 7 and the spring brake pipe 8t, and each pipe is Pressure fluctuations in the pressure switch 9.9 were determined from the lighting status of the indicator lights ]0, ]O'. However, in the above-mentioned configuration, even if the pressure in the air brake pipe 7 or the spring brake pipe 8 is in the brake release state, the internal pressure does not decrease due to the stiffness of the hydraulic section 4, and the caliper cylinder 5 There was a problem in that the brake system remained in a braking state, and if the vehicle tried to drive in this state, the brake system itself would be damaged.
未発明の目的とするところは、ブレーキ装置において、
その緩解状態を正確に検知できるブレーキ緩解検知装置
を提供することにある。The object of the invention is to provide a brake device,
It is an object of the present invention to provide a brake release detection device that can accurately detect the release state.
〔発明の概要〕 未発明は、空油変換式ブレーキ装置ｔこおいて。[Summary of the invention] What has not yet been invented is an air-oil conversion type brake device.
そのキャリパシリンダを直接的に動作させる油圧部の該
油圧を検知する構成としたことを特徴とするものである
。The present invention is characterized in that it is configured to detect the oil pressure of a hydraulic unit that directly operates the caliper cylinder.
以下、本発明を図ｔこよって説明する。第１図は本発明
ｔこよるブレーキ緩解検知装置の一実施例を示す回路図
である。同図において、前記従来例と同一符号は同一部
材を示すものである。】】は油圧部４の油圧を検知する
油圧スイッチである。】２は該油圧スイッチ】］の出力
によって制動状態を表示する表示灯である。なお、ｉ配
油圧スイッチ１１の作動は前記油圧部４の油圧が、キャ
リパシリンダ５を緩解位置へ戻す力すなわち戻しばね力
に対応する圧力以上の場合ｔこ、制動状態と判定し、前
記圧力以下の場８ｔこはｉ解状態と判定してそれぞれ出
力する。The present invention will be explained below with reference to FIG. FIG. 1 is a circuit diagram showing an embodiment of a brake release/release detection device according to the present invention. In the figure, the same reference numerals as in the conventional example indicate the same members. ]] is a hydraulic switch that detects the hydraulic pressure of the hydraulic section 4. ]2 is an indicator light that indicates the braking state based on the output of the oil pressure switch]. Note that the hydraulic pressure distribution switch 11 is operated when the hydraulic pressure of the hydraulic unit 4 is equal to or higher than the pressure corresponding to the force that returns the caliper cylinder 5 to the relaxed release position, that is, the return spring force. The case 8t is determined to be the i solution state and is output respectively.
このような構成によｒば、制動を直接行なうキャリパシ
リンダ５の動作を油圧部４の油圧を検知することで直接
的に判定できるため、該油圧部４の固渋、ロッド３．ピ
ストン等の摺動部の不具合あるいは油圧部４の作動油の
熱膨張等によってブレーキが緩解しない場合でも、正ｍ
にその検知が行なえるものである。また、前記構成によ
れば、検知箇所が一箇所であるため１部品点数が少なく
、また、構成も簡略化でとる。According to such a configuration, the operation of the caliper cylinder 5 that directly performs braking can be directly determined by detecting the oil pressure of the hydraulic section 4. Even if the brake does not release due to a problem with the sliding parts such as the piston or thermal expansion of the hydraulic fluid in the hydraulic section 4, the correct m
The detection can be carried out immediately. Further, according to the above configuration, since there is only one detection point, the number of parts is small, and the configuration is also simplified.
以上説明したように未発明によＶば、ブレーキ装置にお
けるブレーキ緩解を正確に検知できる。As explained above, according to the invention, brake release/relaxation in a brake device can be accurately detected.
第１因は本発明によるブレーキ緩解検知装置の一実施例
を備えたブレーキ装置の回路図、第２図は従来のブレー
キ装置を示す回路図である。
】・・・・・・空気ブレーキ部、２・・・・・・ばねブ
レーキ部。
３・・・・・・ロッド、４・・・・・・油圧部、】】・
・−・・油圧スイッチ
＼、−１The first factor is a circuit diagram of a brake system equipped with an embodiment of the brake release detection device according to the present invention, and FIG. 2 is a circuit diagram showing a conventional brake system. ]...Air brake part, 2...Spring brake part. 3...Rod, 4...Hydraulic section,】]・
・−・・Hydraulic pressure switch＼、−1
Claims (1)
部と、ばねによつて動作するばねブレーキ部と、前記空
気ブレーキ部およびばねブレーキ部の動作を伝えるロッ
ドと、該ロッドの動作によつてキヤリパシリンダを動作
させる油圧部と、該油圧部の油圧を検知しする油圧検知
手段とから構成したことを特徴とするブレーキ緩解検知
装置。1. An air brake section operated by supplied compressed air, a spring brake section operated by a spring, a rod that transmits the operation of the air brake section and the spring brake section, and a rod that is operated by the operation of the rod. A brake release/relaxation detection device comprising: a hydraulic section for operating a caliper cylinder; and a hydraulic pressure detection means for detecting the hydraulic pressure of the hydraulic section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9080285A JPS61249863A (en) | 1985-04-30 | 1985-04-30 | Brake release condition detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9080285A JPS61249863A (en) | 1985-04-30 | 1985-04-30 | Brake release condition detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61249863A true JPS61249863A (en) | 1986-11-07 |
Family
ID=14008719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9080285A Pending JPS61249863A (en) | 1985-04-30 | 1985-04-30 | Brake release condition detecting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61249863A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5413197A (en) * | 1994-03-14 | 1995-05-09 | Baer; Larry G. | Parking brake valve |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5590733A (en) * | 1978-12-29 | 1980-07-09 | Toyota Motor Corp | Brake clearance limit alarming device for air over-hydraulic brake system |
-
1985
- 1985-04-30 JP JP9080285A patent/JPS61249863A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5590733A (en) * | 1978-12-29 | 1980-07-09 | Toyota Motor Corp | Brake clearance limit alarming device for air over-hydraulic brake system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5413197A (en) * | 1994-03-14 | 1995-05-09 | Baer; Larry G. | Parking brake valve |
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