JPS59157132U - Braking gap automatic adjustment device for mechanical drum brakes - Google Patents
Braking gap automatic adjustment device for mechanical drum brakesInfo
- Publication number
- JPS59157132U JPS59157132U JP5169183U JP5169183U JPS59157132U JP S59157132 U JPS59157132 U JP S59157132U JP 5169183 U JP5169183 U JP 5169183U JP 5169183 U JP5169183 U JP 5169183U JP S59157132 U JPS59157132 U JP S59157132U
- Authority
- JP
- Japan
- Prior art keywords
- cam member
- stopper lever
- adjustment
- shaft
- engaged
- 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■−m断面図、第
4図は斜視図、第5図はストッパレバーの作動状態を示
す正面図、第6図は同じくその断面図、第7図はスプリ
ングの取付状態を示す断面図、第8図(まアジャストレ
バーの取付状態を示す断面図、第9図は同じくその正面
図、第10図はレバーリターンスプリングの取付状態を
示す背面図である。 ′
5はカム部材、5fは軸部、23はストッパレバー、2
3aは爪部、23bは係合爪部、24は開口部、24a
1ま係接部、24bは軸逃孔部、28はアジャストレバ
ーである。
壺1図
追5図
一豪2図 −
豪4図−
田
、 5−
1?CI
917
)7因
272β
1’?
壷8t!l 豪9図The drawings show one embodiment of the present invention, and FIG. 1 is a front view, FIG. 2 is a rear view, FIG. 6 is a sectional view of the stopper lever, FIG. 7 is a sectional view of the spring installed, and FIG. 8 is a sectional view of the adjuster lever installed. Figure 9 is a front view of the same, and Figure 10 is a rear view showing how the lever return spring is installed.' 5 is a cam member, 5f is a shaft portion, 23 is a stopper lever, 2
3a is a claw part, 23b is an engaging claw part, 24 is an opening part, 24a
1 is an engaging portion, 24b is a shaft relief portion, and 28 is an adjustment lever. Vase 1, 5, 1, 2 - 4, 5 - 1? CI 917) 7 factors 272β 1'? 8 tons of pot! l Australia 9 map
Claims (1)
接しかつ軸方向に摺動自在に係合されたカムカラーと、
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ヤと、このアジャストギヤにカ
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たライニン
グが所定量以上摩耗したときアジャストギヤとの噛合位
置を変えるアジャストレバー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
バーは、前記アジャストギヤと係合する爪部と、この爪
部の外方位置でかつ壁面と接する係合爪部と、前記カム
部材の軸部に挿入する開口部とを備え、この開口部は前
記軸部と摺接する係接部と、前記係合爪部の先端を中心
とする同心円による軸逃孔部とからなり、前記ストッパ
レバーは前記係接部を軸部に当接して、スプリングと前
記壁面に立設した係合ピンとにより、前記カム部材の定
動力向に付勢せしめ、このストッパレバーが所定量移動
したとき、その保合爪部が壁面に設、けた係合凹部に係
止し、この係止点を中心としてストッパレバーを回転せ
しめ、前記ストッパレバーとアジャストギヤとの噛合関
係を解除するようになした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 abuts the shoe web and is slidably engaged in the axial direction with a cam member that expands the brake shoe;
An adjustment bolt that is screwed into the cam member in the axial direction and pushes the cam collar, an adjustment gear that is integrally rotatably engaged with the adjustment bolt, and is engaged with the adjustment gear to restrict rotation of the cam member in the operating direction. In an automatic braking gap adjustment device for a mechanical drum brake, the stopper lever is comprised of a stopper lever and an adjustment lever that changes the engagement position with the adjustment gear when a lining rotatably provided on the cam member is worn beyond a predetermined amount. , a claw portion that engages with the adjustment gear, an engaging claw portion that is in contact with a wall surface at a position outside the claw portion, and an opening portion that is inserted into the shaft portion of the cam member, and the opening portion is configured to be inserted into the shaft portion of the cam member. The stopper lever is composed of an engaging part that slides in contact with the shaft part, and a shaft relief part formed by a concentric circle centered on the tip of the engaging claw part, and the stopper lever brings the engaging part into contact with the shaft part, so that the spring and the The cam member is biased in a constant force direction by an engagement pin provided upright on the wall, and when the stopper lever moves a predetermined amount, its retaining claw portion is engaged in the engagement recess provided on the wall and girdered. An automatic braking gap adjustment device for a mechanical drum brake, which rotates a stopper lever about this locking point to release the meshing relationship between the stopper lever and an adjustment gear.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5169183U JPS59157132U (en) | 1983-04-07 | 1983-04-07 | Braking gap automatic adjustment device for mechanical drum brakes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5169183U JPS59157132U (en) | 1983-04-07 | 1983-04-07 | Braking gap automatic adjustment device for mechanical drum brakes |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59157132U true JPS59157132U (en) | 1984-10-22 |
JPS6224840Y2 JPS6224840Y2 (en) | 1987-06-25 |
Family
ID=30182090
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5169183U Granted JPS59157132U (en) | 1983-04-07 | 1983-04-07 | Braking gap automatic adjustment device for mechanical drum brakes |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59157132U (en) |
-
1983
- 1983-04-07 JP JP5169183U patent/JPS59157132U/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6224840Y2 (en) | 1987-06-25 |
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