JPS62191936U

JPS62191936U -

Info

Publication number: JPS62191936U
Application number: JP8022486U
Authority: JP
Priority date: 1986-05-29
Filing date: 1986-05-29
Publication date: 1987-12-07

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例に係るシユー間隙自
動調整機構付き機械式ドラムブレーキの一部欠截
正面図、第２図はその要部欠截―線矢視図、
第３図は第１図における―線要部断面図、第
４図はその―線矢視図である。１０…ドラムブレーキ、１２…ブレーキドラム
、１４…ブレーキ板、１６…軸筒、１８…貫通孔
、２０…ブレーキ腕、２２…突片、２４…顎、２
６…カム、２８…軸部、３０…ブレーキシユー、
３２…ライニング、３４…ブレーキシユー、３６
…ライニング、３８…アンカー部材、４０…傾斜
面、４２…座面、４４…雄螺子部材、４６…楔形
頭部、４７…凹部、４８…傾斜面、５０…軸棒、
５１…目盛り、５２…雌螺子部材、５４…鍔、５
６…ピン、５８…ラチエツト車、６０…クラツチ
・スプリング、６２…爪、６４…ピン、６６…揺
動板、６８…止め環、７０…捩りコイルスプリン
グ、７２…連結棒、７４…係止圧潰頭部、７５…
先端部、７６…ばね座、７８…座金、８０…圧縮
コイルスプリング、８２…ピン、８４…蓋体、８
６，８８…密封材、９０…覆筒。 FIG. 1 is a partially cutaway front view of a mechanical drum brake with an automatic shoe gap adjustment mechanism according to an embodiment of the present invention, FIG.
FIG. 3 is a cross-sectional view of the main part taken along the line - in FIG. 1, and FIG. 4 is a view taken along the line -. 10...Drum brake, 12...Brake drum, 14...Brake plate, 16...Shaft cylinder, 18...Through hole, 20...Brake arm, 22...Protrusion piece, 24...Jaw, 2
6...Cam, 28...Shaft part, 30...Brake shoe,
32... Lining, 34... Brake shoe, 36
... Lining, 38... Anchor member, 40... Inclined surface, 42... Seat surface, 44... Male screw member, 46... Wedge-shaped head, 47... Recessed part, 48... Inclined surface, 50... Shaft rod,
51... Scale, 52... Female screw member, 54... Tsuba, 5
6... Pin, 58... Ratchet wheel, 60... Clutch spring, 62... Pawl, 64... Pin, 66... Rocking plate, 68... Retaining ring, 70... Torsion coil spring, 72... Connecting rod, 74... Lock crushing Head, 75...
Tip, 76... Spring seat, 78... Washer, 80... Compression coil spring, 82... Pin, 84... Lid, 8
6, 88... Sealing material, 90... Cover tube.

Claims

[Scope of Claim for Utility Model Registration] A leading shoe and a trailing shoe are provided on the brake plate that receives the brake torque, and an anchor member that serves as a swinging fulcrum for both brake shoes and an anchor member that is in contact with one end of both brake shoes is provided. The cams are arranged symmetrically across the axle center line, and the movement of the cam side member during braking causes the brakes to be adjusted according to the amount of wear on the lining of each brake shoe. A shoe gap automatic mechanism in which the female screw member passing through the plate is rotated, and the anchor member is pushed by the wedge-shaped head of the male screw member that moves forward as the female screw member passes through the plate, pushing both brake shoes in opposite directions. A mechanical drum brake with an adjustment mechanism, in which a tail end of the shaft opposite to the wedge-shaped head of the male screw member protrudes outside the brake plate, and a brake is attached to the outer periphery of the end of the shaft of the male screw member. A mechanical drum brake with an automatic shoe gap adjustment mechanism, which features a shoe lining wear amount display.