JPS6194635U

JPS6194635U -

Info

Publication number: JPS6194635U
Application number: JP18052484U
Authority: JP
Priority date: 1984-11-28
Filing date: 1984-11-28
Publication date: 1986-06-18

Description

[Brief explanation of the drawing]

第１図は、本考案の一実施例であるドラムブレ
ーキの正面図（ドラムを除く）であり、第２図は
第１図における−断面図である。第３図は第
１図における引張コイルスプリングの一端とピン
との係合状態を示す要部斜視図であり、第４図は
シユーリムに形成した掛止部を示す要部斜視図で
ある。第５図は従来の第一スプリングの一例を取
付状態で示す要部正面図である。１０：第一ブレーキシユー、１２：第二ブレー
キシユー、１８：バツキングプレート、３４：ス
トラツト、３５：コイルスプリング（第二スプリ
ング）、５０：アジヤストレバー、５２：ピン、
５４：係合孔、５６：突起、５８：係合歯、６０
：爪部材、６２：ピン、６４：引張コイルスプリ
ング（第一スプリング）、６６：掛止孔、６８：
掛止部。 FIG. 1 is a front view (excluding the drum) of a drum brake that is an embodiment of the present invention, and FIG. 2 is a cross-sectional view taken in FIG. 1. FIG. 3 is a perspective view of a main part showing the state of engagement between one end of the tension coil spring and the pin in FIG. 1, and FIG. 4 is a perspective view of a main part showing a hook part formed on the rim. FIG. 5 is a front view of essential parts showing an example of a conventional first spring in an attached state. 10: First brake shoe, 12: Second brake shoe, 18: Bucking plate, 34: Strut, 35: Coil spring (second spring), 50: Adjust lever, 52: Pin,
54: Engagement hole, 56: Projection, 58: Engagement tooth, 60
: Claw member, 62: Pin, 64: Tension coil spring (first spring), 66: Latching hole, 68:
Latch part.

Claims

[Claims for Utility Model Registration] First and second brake shoes disposed on a bucking plate, and a plurality of engaging teeth rotatably attached to the first brake shoe. , an adjusting member for adjusting the shoe operating gap; and an adjusting member rotatably attached to the first brake shoe and meshed with the engaging tooth to allow rotation of the adjusting member in the adjusting direction, while rotating in the opposite direction. a pawl member that prevents movement; a first spring that biases the pawl member in the direction of meshing with the engagement teeth; and a second spring disposed between the adjusting member and the second brake shoe; a transmission member that transmits the motion of the brake shoe to the adjustment member;
a second spring that urges the transmission member toward the second brake shoe and moves the transmission member together with the second brake shoe; In the drum brake of the type in which the shoe operation gap is adjusted by being rotated in the adjusting direction in conjunction with the second brake shoe, the first spring is a tension coil spring and one end thereof is connected to the pawl member; A drum brake characterized in that the other end is hooked to the first brake shoe or a member fixed thereto.