JPS60107646U - wheel cylinder - Google Patents
wheel cylinderInfo
- Publication number
- JPS60107646U JPS60107646U JP20316783U JP20316783U JPS60107646U JP S60107646 U JPS60107646 U JP S60107646U JP 20316783 U JP20316783 U JP 20316783U JP 20316783 U JP20316783 U JP 20316783U JP S60107646 U JPS60107646 U JP S60107646U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- cylinder body
- female screw
- screw member
- brake shoe
- 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.)
- Granted
Links
Landscapes
- Braking Arrangements (AREA)
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
第１図は本考案の一実施例であるホイールシリンダを備
えたツー・リーディング式のドラムブレーキを示す概略
図であり、第２図は第１図のホイールシリンダの要部を
示す拡大断面図である。
１０：バッキングプレート、１２ニブレーキドラム、１
４：ホイールシリンダ、１６：ブレーキシュー、２２ニ
ジリンダ本体、２６：ピストン、２８：シュー支持部（
係合部）、３４：ピストン本体（摺動部）、３８：雄ね
じ部、４０：ナツト（雌ねじ部材）、４２：捩りばね（
回転付勢手段）、４４：ストッパ（回転止め部材）、４
６：圧縮ばね（付勢手段）、Ｃ：クリアランス。Fig. 1 is a schematic diagram showing a two-leading drum brake equipped with a wheel cylinder, which is an embodiment of the present invention, and Fig. 2 is an enlarged sectional view showing the main parts of the wheel cylinder shown in Fig. 1. be. 10: Backing plate, 12 brake drum, 1
4: Wheel cylinder, 16: Brake shoe, 22 Niji cylinder body, 26: Piston, 28: Shoe support part (
(engaging part), 34: piston body (sliding part), 38: male threaded part, 40: nut (female threaded member), 42: torsion spring (
rotation biasing means), 44: stopper (rotation stopper member), 4
6: Compression spring (biasing means), C: Clearance.
Claims (1)
可能に嵌め入れるシリンダ本体とを備えてバッキングプ
レートに固設され、車輪とともに回転するブレーキドラ
ムに前記ブレーキシューを押圧するホイールシリンダに
おいて、 前記ピストンの前記シリンダ本体と摺動させられる摺動
部と、前記ブレーキシューと係合させられる保合部との
中間に雄ねじ部を形成し、該雄ねじ部に雌ねじ部材を螺
合させる一方、該雌ねじ部材を該ピストンの引込方向へ
螺進させる方向に常時付勢する回転付勢手段を配設し、
さらに前記シリンダ本体に対して前記ピストンの移動方
向に予め定められたクリアランスの範囲内で移動可能に
連結されるとともに、所定の付勢手段によって前記雌ね
じ部材の前記ピストンの引込方向側の面に圧接される回
転止め部材を設け、常には前記ピストンの引込方向への
雌ねじ部材の螺進を阻止するが、該回転止め部材が前記
シリンダ本体によって前記ピストンの突出方向への移動
を阻止された状態で前記ピストンが前記突出方向へ移動
するとき、前記雌ねじ部材の前記ピストンの引込方向へ
の螺進を許容するようにしたことを特徴とするホイール
シリンダ。[Claims for Utility Model Registration] A cylinder body comprising a piston that engages with a brake shoe and a cylinder body into which the piston is slidably fitted is fixed to a backing plate and presses the brake shoe against a brake drum that rotates together with the wheel. In the wheel cylinder, a male threaded portion is formed between a sliding portion of the piston that slides on the cylinder body and a retaining portion that is engaged with the brake shoe, and a female threaded member is screwed into the male threaded portion. and a rotary biasing means for constantly biasing the female screw member in a direction in which the female screw member is screwed in the retraction direction of the piston.
Furthermore, it is movably connected to the cylinder body within a predetermined clearance range in the movement direction of the piston, and is pressed against the surface of the female thread member on the side in the retraction direction of the piston by a predetermined biasing means. A rotation stopper is provided, which normally prevents the female screw member from spiraling in the retraction direction of the piston, but when the rotation stopper is prevented from moving in the direction of the piston extension by the cylinder body. A wheel cylinder characterized in that when the piston moves in the projecting direction, the female screw member is allowed to spiral in the retracting direction of the piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20316783U JPS60107646U (en) | 1983-12-26 | 1983-12-26 | wheel cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20316783U JPS60107646U (en) | 1983-12-26 | 1983-12-26 | wheel cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60107646U true JPS60107646U (en) | 1985-07-22 |
| JPH0130670Y2 JPH0130670Y2 (en) | 1989-09-20 |
Family
ID=30765586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20316783U Granted JPS60107646U (en) | 1983-12-26 | 1983-12-26 | wheel cylinder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60107646U (en) |
-
1983
- 1983-12-26 JP JP20316783U patent/JPS60107646U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0130670Y2 (en) | 1989-09-20 |
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