JPS5945335U - Drum brake with automatic operating clearance adjustment function - Google Patents
Drum brake with automatic operating clearance adjustment functionInfo
- Publication number
- JPS5945335U JPS5945335U JP14211082U JP14211082U JPS5945335U JP S5945335 U JPS5945335 U JP S5945335U JP 14211082 U JP14211082 U JP 14211082U JP 14211082 U JP14211082 U JP 14211082U JP S5945335 U JPS5945335 U JP S5945335U
- Authority
- JP
- Japan
- Prior art keywords
- brake shoe
- latching
- brake
- adjustment
- adjusting member
- 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.)
- Pending
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) [Abstract] 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ドラムブレーキの回転
ドラムを除いた正面図である。第2図は第1図の■−■
視断面断面図る。第3図は第1図 、の要部を示す
部分断面図である。第4図は案内部材を備えた従来のド
ラムブレーキの要部を示した正面図である。第5図は第
4図の■−■視断面断面図る。
10:バッキングプレート、16.18ニブレーキシユ
ー、38ニストラット部材、52:調節部材、60:係
合歯、62:掛止歯、64:掛止部材、68:引張コイ
ルスプリング、72:U字状係止部、74:凹曲部、7
6:ガイド部。FIG. 1 is a front view of a drum brake according to an embodiment of the present invention, with the rotating drum removed. Figure 2 shows ■-■ of Figure 1.
A cross-sectional view. FIG. 3 is a partial sectional view showing the main part of FIG. 1. FIG. 4 is a front view showing the main parts of a conventional drum brake equipped with a guide member. FIG. 5 is a sectional view taken along the line ■-■ in FIG. 4. 10: Backing plate, 16.18 Ni brake shoe, 38 Ni strut member, 52: Adjustment member, 60: Engagement tooth, 62: Latch tooth, 64: Latch member, 68: Tension coil spring, 72: U Letter-shaped locking portion, 74: Concave curved portion, 7
6: Guide section.
Claims (1)
ラムの内周面に押圧される第1ブレーキシユーおよび第
2ブレーキシユーと、該第2ブレーキシユーに回動可能
に取り付けられるとともに、回動中心を中心とする円弧
に略沿って形成された係合歯を端面部に有する板状の調
節部材と、該調節部材の係合歯に係合する掛止歯を端面
部に有して前記第2ブレーキシユーに回動可能に設けら
れ、該調節部材の一方向の回動を許容するが他方向の回
動を阻止する板状の掛止部材と、前記第1ブレーキシユ
ーと調節部材との間に配設されてそれ等の一定距離以下
の接近を阻止するとともに、それ等第1ブレーキシユー
と調節部材とを作動的に連結するストラット部材とを備
え、該第1ブレーキシユーおよび前記第2ブレーキシユ
ーの拡開時における離隔量が予め定められた一定量を超
えたとき、前記調節部材の回動位置が変更されることに
よす、該一対のブレーキシューの前記回転ドラムとの間
の作動間隙が自動的に調節されるドラムブレーキにおい
て、 前記掛止部材の掛止歯が前記調節部材の係合歯と係合す
る方向に該掛止部材を付勢する引張コイルスプリングの
両端部を該掛止部材および調節部′材にそれぞれ係止さ
せるとともに、該両端部のうちの一方に、該掛止部材ま
たは調節部材の板厚方向に回向させられて該掛止部材ま
たは調節部材の前記バッキングプレート側および回転ド
ラム側の両側面に跨がる凹曲部と該凹曲部から該掛止部
材の掛止歯と該調節部材の係合歯との係合部分に延びて
該係合部分周辺を挾む相対向するガイド部とを有するU
字状係止部を形成し、該ガイド部をもって該掛止部材と
調節部材との板厚方向のずれを防止するようにしたこと
を特徴とする作動間隙自動調節機能を備えたドラムブレ
ーキ。[Claims for Utility Model Registration] A first brake shoe and a second brake shoe that are expandably attached to a backing plate and pressed against the inner circumferential surface of a rotating drum, and a first brake shoe and a second brake shoe that are rotated by the second brake shoe. a plate-shaped adjustment member that can be mounted and has engagement teeth on its end face that are formed approximately along an arc centered on the rotation center; and a latch tooth that engages with the engagement teeth of the adjustment member. a plate-shaped latching member that is rotatably provided on the second brake shoe and that allows the adjusting member to rotate in one direction but prevents the adjusting member from rotating in the other direction; a strut member disposed between the first brake shoe and the adjustment member to prevent them from coming closer than a certain distance, and operatively connect the first brake shoe and the adjustment member; The rotating position of the adjustment member is changed when the separation amount when the first brake shoe and the second brake shoe are expanded exceeds a predetermined certain amount. , in a drum brake in which an operating gap between the pair of brake shoes and the rotating drum is automatically adjusted, the latching teeth of the latching member are oriented in a direction to engage with the engaging teeth of the adjusting member. Both ends of a tension coil spring that biases the latching member are respectively latched to the latching member and the adjusting member, and one of the two ends is attached in the thickness direction of the latching member or the adjusting member. a concave curved portion that is rotated so as to span both sides of the backing plate side and the rotating drum side of the latching member or adjustment member; U having opposing guide portions extending to the engaging portion with the engaging teeth of and sandwiching the periphery of the engaging portion.
1. A drum brake equipped with an automatic operating gap adjustment function, characterized in that a letter-shaped locking portion is formed, and the guide portion prevents displacement of the locking member and the adjusting member in the plate thickness direction.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14211082U JPS5945335U (en) | 1982-09-20 | 1982-09-20 | Drum brake with automatic operating clearance adjustment function |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14211082U JPS5945335U (en) | 1982-09-20 | 1982-09-20 | Drum brake with automatic operating clearance adjustment function |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5945335U true JPS5945335U (en) | 1984-03-26 |
Family
ID=30317635
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14211082U Pending JPS5945335U (en) | 1982-09-20 | 1982-09-20 | Drum brake with automatic operating clearance adjustment function |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5945335U (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52124580A (en) * | 1976-04-13 | 1977-10-19 | Dba Sa | Drum brake |
-
1982
- 1982-09-20 JP JP14211082U patent/JPS5945335U/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52124580A (en) * | 1976-04-13 | 1977-10-19 | Dba Sa | Drum brake |
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