JPS5935747U - Braking gap automatic adjustment device for mechanical drum brakes - Google Patents
Braking gap automatic adjustment device for mechanical drum brakesInfo
- Publication number
- JPS5935747U JPS5935747U JP13170382U JP13170382U JPS5935747U JP S5935747 U JPS5935747 U JP S5935747U JP 13170382 U JP13170382 U JP 13170382U JP 13170382 U JP13170382 U JP 13170382U JP S5935747 U JPS5935747 U JP S5935747U
- Authority
- JP
- Japan
- Prior art keywords
- adjustment
- cam member
- support pin
- cam
- mechanical drum
- 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
図面は本考案の一実施例を示すもので第1図は正面図、
第2図は背面図、第3図は第2図の■−■断面図、第4
図は平面図、第5図はフルアジャスト時の要部の拡大図
、第6図はフルアジャスト後ストツパレバーの移動許容
限界状態を示す要部の拡大図、第7図はストッパレバー
とアジャストギアどの噛合関係を解除した状態を示す要
部の拡大図である。
2.2′はブレーキシュー、2b、 2b’はシュー
ウェブ遊端部、5はカム部材、7はブレーキアーム、1
1はアジャストボルト、15は隔壁、21はストッパレ
バー、22はく字形孔、23は支持ピン、25はスプリ
ング部材、26はアジャストレバーである。
舟1図
β゛ト、The drawings show one embodiment of the present invention, and Figure 1 is a front view;
Figure 2 is a rear view, Figure 3 is a sectional view taken along ■-■ of Figure 2, and Figure 4 is a rear view.
The figure is a plan view, Figure 5 is an enlarged view of the main parts during full adjustment, Figure 6 is an enlarged view of the main parts showing the permissible movement limit state of the stopper lever after full adjustment, and Figure 7 is an enlarged view of the stopper lever and adjustment gear. FIG. 3 is an enlarged view of main parts showing a state where the meshing relationship is released. 2.2' is a brake shoe, 2b, 2b' is a shoe web free end, 5 is a cam member, 7 is a brake arm, 1
1 is an adjustment bolt, 15 is a partition wall, 21 is a stopper lever, 22 is a dogleg-shaped hole, 23 is a support pin, 25 is a spring member, and 26 is an adjustment lever. Figure 1 of the boat,
Claims (1)
るカム部材に軸方向に摺動自在に嵌合されシューウェブ
遊端部と当接するカムカラーと1、カム部材に軸方向に
螺合され前記カムカラーを押動するアジャストボルトと
、アジャストボルトに一体回転可能に係合したアジャス
トギアと、このアジャストギアにカム部材の作動方向の
回転を規制して噛合したストッパレバーと、カム部材に
一体回転可能に設けられライニングが所定量以上摩耗し
たときカム部材の作動方向に噛合位置を変えてアジャス
トするように設けられたアジャストレバーとからなる機
械式ドラムブレーキの制動間隙自動調整装置において、
前記ストッパレバーの基部に屈曲部がカム部材の反作動
方向に向くく字形孔を形成し、この(字形孔を固定体に
立設した支−持ピンに挿通し、更に前記ストッパレバー
をスプリング部材により前記反作動方向に付勢し、支持
ピンがアジャスト時にはく字形孔のアジャストギア側の
ガイド部に位置し、フルアジャスト後に非アジャスート
ギア側のガイド部に移行せしめ、前記ストッパレバーと
アジャストギアとの噛合関係ヲ解除するようになしたこ
とを特徴とする機械式ドラムブレーキの制動間隙自動調
整装置。a cam collar that is slidably fitted in the axial direction to a cam member that expands the brake shoes by rotation of the brake arm and comes into contact with the free end of the shoe web; and 1, a cam collar that is screwed into the cam member in the axial direction and pushes the cam collar. an adjustment bolt that is rotatably engaged with the adjust bolt, an adjust gear that is rotatably engaged with the adjust bolt, a stopper lever that is engaged with the adjust gear to restrict rotation of the cam member in the operating direction, and a lining that is rotatably provided with the cam member. In an automatic braking gap adjustment device for a mechanical drum brake, which comprises an adjustment lever that adjusts by changing the engagement position in the operating direction of the cam member when the cam member is worn beyond a predetermined amount,
A bent part of the stopper lever is formed with an angle-shaped hole facing in the counteracting direction of the cam member, and the stopper lever is inserted into the support pin provided upright on the fixed body, and the stopper lever is inserted into the spring member. The support pin is biased in the counteracting direction, and the support pin is located in the guide portion of the dogleg-shaped hole on the adjustment gear side during adjustment, and moves to the guide portion on the non-adjustment gear side after full adjustment, and the support pin is positioned in the guide portion of the dogleg-shaped hole on the adjustment gear side when adjusting. An automatic braking gap adjustment device for a mechanical drum brake, characterized in that the device is configured to release the meshing relationship with the mechanical drum brake.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13170382U JPS5935747U (en) | 1982-08-31 | 1982-08-31 | Braking gap automatic adjustment device for mechanical drum brakes |
GB08322765A GB2129888B (en) | 1982-08-31 | 1983-08-24 | Automatic brake adjustor |
US06/526,328 US4586589A (en) | 1982-08-31 | 1983-08-25 | Automatic braking gap adjustor system for mechanical type drum brake |
KR2019830007613U KR880001766Y1 (en) | 1982-08-31 | 1983-08-30 | Automatic braking gap adjustor system for mechanical type drum brake |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13170382U JPS5935747U (en) | 1982-08-31 | 1982-08-31 | Braking gap automatic adjustment device for mechanical drum brakes |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5935747U true JPS5935747U (en) | 1984-03-06 |
JPS614753Y2 JPS614753Y2 (en) | 1986-02-14 |
Family
ID=30297665
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13170382U Granted JPS5935747U (en) | 1982-08-31 | 1982-08-31 | Braking gap automatic adjustment device for mechanical drum brakes |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5935747U (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55159882A (en) * | 1979-05-30 | 1980-12-12 | Hitachi Plant Eng & Constr Co | Piping washer |
JPS57108585U (en) * | 1980-12-19 | 1982-07-05 |
-
1982
- 1982-08-31 JP JP13170382U patent/JPS5935747U/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55159882A (en) * | 1979-05-30 | 1980-12-12 | Hitachi Plant Eng & Constr Co | Piping washer |
JPS57108585U (en) * | 1980-12-19 | 1982-07-05 |
Also Published As
Publication number | Publication date |
---|---|
JPS614753Y2 (en) | 1986-02-14 |
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