JPS6318638U - - Google Patents
Info
- Publication number
- JPS6318638U JPS6318638U JP11173486U JP11173486U JPS6318638U JP S6318638 U JPS6318638 U JP S6318638U JP 11173486 U JP11173486 U JP 11173486U JP 11173486 U JP11173486 U JP 11173486U JP S6318638 U JPS6318638 U JP S6318638U
- Authority
- JP
- Japan
- Prior art keywords
- brake
- brake shoe
- shoe
- wheel
- pair
- 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)
Description
第１図は本考案が適用されたホイールシリンダ
を備えたドラムブレーキの要部を示す正面図であ
る。
１０：バツキングプレート、１２，１４：ブレ
ーキシユー、２２：ホイールシリンダ、２４：パ
ーキングブレーキレバー、３８：シリンダボア、
４０：シリンダ本体、４２，４４：ピストン、４
６：係合突起、４８：シユー間隙調節装置、５０
：アジヤストホイール、５２：雄ねじ部、５６：
頭部、５８：調節ボルト。
FIG. 1 is a front view showing the main parts of a drum brake equipped with a wheel cylinder to which the present invention is applied. 10: Bucking plate, 12, 14: Brake shoe, 22: Wheel cylinder, 24: Parking brake lever, 38: Cylinder bore,
40: Cylinder body, 42, 44: Piston, 4
6: Engagement protrusion, 48: Shu gap adjustment device, 50
: Adjustment wheel, 52: Male thread part, 56:
Head, 58: Adjustment bolt.
Claims (1)
対のブレーキシユーと、該ブレーキシユーの一方
に回動可能に設けられ、パーキングブレーキ操作
力に伴つて回動させられたとき該ブレーキシユー
の互いに近接する各一端側を外周側へそれぞれ押
し出すパーキングブレーキレバーとを備えたドラ
ムブレーキにおいて、前記バツキングプレートに
固定され、軸心方向において貫通するシリンダボ
アを有するシリンダ本体と、該シリンダボア内に
おいて油圧により互いに反対方向に突出し可能に
嵌合され、突出端側が前記ブレーキシユーの各他
端とそれぞれ係合させられるとともにパーキング
ブレーキレバー操作時には前記ブレーキシユーの
各他端間で狭圧されつつ一方向へ一体的に移動さ
せられる一対のピストンとを備えたホイールシリ
ンダであつて、 前記ピストンの一方に一体的に突設されて前記
一方または他方のブレーキシユーの他端と係合す
る係合突起と、 前記ピストンの他方に軸心まわりの相対回転可
能に嵌合されたアジヤストホイールと、雄ねじ部
が該アジヤストホイールと螺合され且つ頭部が相
対回転不能に前記他方または一方のブレーキシユ
ーの他端と係合させられた調節ボルトとを備え、
該アジヤストホイールを回転させることによりシ
ユー間隙を調節するシユー間隙調節装置とを含み
、 前記一対のピストンが、前記ブレーキシユーの
最大摩耗時における前記パーキングブレーキレバ
ー操作時に必要とされる前記一方向の移動距離と
同等以上の距離の移動が可能に設けられているこ
とを特徴とするドラムブレーキ用ホイールシリン
ダ。[Claims for Utility Model Registration] A pair of brake shoes that are expandably provided on the parking plate, and a pair of brake shoes that are rotatably provided on one side of the brake shoe and that rotate according to the parking brake operating force. and a parking brake lever that pushes out one end side of the brake shoe adjacent to each other toward the outer circumferential side when the brake shoe is pressed, the cylinder body being fixed to the bucking plate and having a cylinder bore passing through in the axial direction. and are fitted so that they can protrude in opposite directions by hydraulic pressure within the cylinder bore, and the protruding end sides are engaged with the other ends of the brake shoe respectively, and when the parking brake lever is operated, the other ends of the brake shoe A wheel cylinder comprising a pair of pistons that are integrally moved in one direction while being compressed between them, the wheel cylinder being integrally provided on one of the pistons and integrally protruding from the other of the one or the other brake shoe. an engagement protrusion that engages with the end; an adjustment wheel that is fitted to the other side of the piston so as to be relatively rotatable about the axis; a male threaded portion that is screwed to the adjustment wheel, and a head that is not relatively rotatable; an adjustment bolt engaged with the other end of the other or one brake shoe;
a shoe gap adjustment device that adjusts a shoe gap by rotating the adjustment wheel, the pair of pistons moving in the one direction required when operating the parking brake lever when the brake shoe is at maximum wear. A wheel cylinder for a drum brake, characterized in that the wheel cylinder is capable of moving a distance equal to or greater than that of the wheel cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11173486U JPH0247780Y2 (en) | 1986-07-21 | 1986-07-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11173486U JPH0247780Y2 (en) | 1986-07-21 | 1986-07-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6318638U true JPS6318638U (en) | 1988-02-06 |
| JPH0247780Y2 JPH0247780Y2 (en) | 1990-12-14 |
Family
ID=30991932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11173486U Expired JPH0247780Y2 (en) | 1986-07-21 | 1986-07-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0247780Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08284985A (en) * | 1995-04-10 | 1996-11-01 | Fanuc Ltd | Brake mechanism of machine tool using linear motor |
-
1986
- 1986-07-21 JP JP11173486U patent/JPH0247780Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0247780Y2 (en) | 1990-12-14 |
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