JPS6280037U - - Google Patents
Info
- Publication number
- JPS6280037U JPS6280037U JP17327985U JP17327985U JPS6280037U JP S6280037 U JPS6280037 U JP S6280037U JP 17327985 U JP17327985 U JP 17327985U JP 17327985 U JP17327985 U JP 17327985U JP S6280037 U JPS6280037 U JP S6280037U
- Authority
- JP
- Japan
- Prior art keywords
- circular arc
- center
- shoe
- adjustment
- brake
- 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
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Braking Arrangements (AREA)
Description
第１図は第２図の要部拡大図である。第２図は
本考案が適用されたシユー間隙自動調節装置を備
えたドラムブレーキの要部を示す正面図である。
第３図は第２図における―視断面の要部を示
す図である。第４図は本考案の他の例を示す第１
図に相当する図であつて、パーキングブレーキ操
作力が加えられた状態を示す図である。第５図は
従来のシユー間隙自動調節装置の要部を示す図で
あつて、第１図に対応する図である。
１２，１４：ブレーキシユー、３２：係合歯、
３４：アジヤストレバー、３８，６０：係合歯、
４０，５８：アジヤストラツチ、４６：ストラツ
ト、Ｂ：円弧（第１円弧）、Ｄ，Ｅ：円弧（第２
円弧）、Ｏ１：中心（第１円弧の中心）、Ｏ２，
Ｏ３：中心（第２円弧の中心）。
FIG. 1 is an enlarged view of the main part of FIG. 2. FIG. 2 is a front view showing the main parts of a drum brake equipped with an automatic shoe gap adjustment device to which the present invention is applied.
FIG. 3 is a diagram illustrating a main part of a cross-section seen from the side in FIG. 2. Figure 4 is a first diagram showing another example of the present invention.
FIG. 2 is a diagram corresponding to FIG. 1 and showing a state in which a parking brake operating force is applied. FIG. 5 is a diagram showing the main parts of a conventional shoe gap automatic adjustment device, and corresponds to FIG. 1. 12, 14: Brake shoe, 32: Engagement tooth,
34: Adjust lever, 38, 60: Engagement tooth,
40, 58: Asian strut, 46: Strut, B: Arc (first arc), D, E: Arc (second
arc), O1: center (center of first arc), O2,
O3: Center (center of second arc).
Claims (1)
ーがそれらの間に位置するストラツトによつて内
周側から支えられる形式のドラムブレーキにおい
て、該ブレーキシユーの一方にピンにより回動可
能に取り付けられかつ前記ストラツトの一端と係
合させられたアジヤストレバーと、前記一方のブ
レーキシユーに回動可能に取り付けられて該アジ
ヤストレバーの先端部に形成された係合歯と係合
し、該アジヤストレバーのシユー間隙拡大方向の
回動は阻止するがシユー間隙縮小方向の回動は許
容するアジヤストラツチとを備え、前記ブレーキ
シユーのシユー間隙を自動調節するシユー間隙自
動調節装置であつて、 前記アジヤストレバーの係合歯を前記ピンの軸
心を中心とする第１円弧に略沿つて複数形成する
一方、前記アジヤストラツチに、上記係合歯と係
合させるための係合歯を該第１弧と同等以上の曲
率半径を有する第２円弧に略沿つて形成し、且つ
前記ストラツトを通じて最大入力が加えられたと
きに、該第１円弧の中心と該第２円弧の中心とが
一致するようにあるいは該第１円弧の中心と該第
２円弧の中心とを結ぶ直線が前記アジヤストラツ
チに形成された係合歯を通過するように該第２円
弧の中心を決定したことを特徴とするドラムブレ
ーキ用シユー間隙自動調節装置。[Claims for Utility Model Registration] In a drum brake of the type in which a pair of brake shoes that are moved toward and away from each other are supported from the inner circumferential side by a strut located between them, one of the brake shoes is provided with a pin. an adjustment lever rotatably attached and engaged with one end of the strut; and an engagement tooth rotatably attached to the one brake shoe and formed at the tip of the adjustment lever. and an adjustment stretch that engages with the brake shoe to prevent the adjustment lever from rotating in the direction of expanding the shoe gap but allowing rotation in the direction of reducing the shoe gap, and a shoe gap automatic that automatically adjusts the shoe gap of the brake shoe. In the adjustment device, a plurality of engagement teeth of the adjustment lever are formed substantially along a first arc centered on the axis of the pin, and a plurality of engagement teeth are formed on the adjustment strap for engaging with the engagement teeth. The engaging tooth is formed approximately along a second circular arc having a radius of curvature equal to or greater than the first arc, and when the maximum input is applied through the strut, the center of the first circular arc and the second circular arc are formed. The center of the second circular arc was determined so that the center of the second circular arc coincided with the center of the first circular arc, or such that a straight line connecting the center of the first circular arc and the center of the second circular arc passed through an engaging tooth formed on the adjuster strap. An automatic shoe clearance adjustment device for drum brakes, characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985173279U JPH0219634Y2 (en) | 1985-11-11 | 1985-11-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985173279U JPH0219634Y2 (en) | 1985-11-11 | 1985-11-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6280037U true JPS6280037U (en) | 1987-05-22 |
| JPH0219634Y2 JPH0219634Y2 (en) | 1990-05-30 |
Family
ID=31110590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985173279U Expired JPH0219634Y2 (en) | 1985-11-11 | 1985-11-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0219634Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5854294A (en) * | 1981-09-28 | 1983-03-31 | カルソニックカンセイ株式会社 | Method of connecting hose in heat exchanger |
-
1985
- 1985-11-11 JP JP1985173279U patent/JPH0219634Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5854294A (en) * | 1981-09-28 | 1983-03-31 | カルソニックカンセイ株式会社 | Method of connecting hose in heat exchanger |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0219634Y2 (en) | 1990-05-30 |
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