DRUM BRAKE DEVICE

PROBLEM TO BE SOLVED: To improve a brake operation feeling by reducing an invalid stroke of a brake pedal.SOLUTION: An automatic adjustment mechanism 80 comprises: a pair of shoe hold-down devices 90; and a position regulation member 100 which positions the shoe hold-down devices 90. Each of the sho...

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Bibliographic Details
Main Authors NISHII KAZUTOSHI, NISHIDA NAOTAKA, SUZUKI MASAZUMI, HIRAMATSU YUKIO
Format Patent
LanguageEnglish
Japanese
Published 24.11.2015
Subjects
BLASTING
BRAKES
CLUTCHES
COUPLINGS FOR TRANSMITTING ROTATION
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
THERMAL INSULATION IN GENERAL
WEAPONS
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Summary:PROBLEM TO BE SOLVED: To improve a brake operation feeling by reducing an invalid stroke of a brake pedal.SOLUTION: An automatic adjustment mechanism 80 comprises: a pair of shoe hold-down devices 90; and a position regulation member 100 which positions the shoe hold-down devices 90. Each of the shoe hold-down device 90 comprises: a shoe hold-down pin 91; a pair of rubber plate stays 92 formed at a shoe web 31; a rubber plate 93 which is fastened to a pair of the rubber plate stays 92, and grips the shoe hold-down pin 91; and a shoe hold-down cup 94. A shoe clearance is created by resilience by which the rubber plate 93 is restored from elastic deformation. When a lining 33 is deformed, a brake shoe 30 is restored by a force by which the lining 33 is restored from the deformation. 【課題】 ブレーキペダルの無効ストロークを小さくして、ブレーキ操作フィーリングを向上させる。【解決手段】 自動アジャスト機構８０は、一対のシューホールドダウン装置９０と、シューホールドダウン装置９０を位置決めする位置規制部材１００とを備えている。シューホールドダウン装置９０は、シューホールドダウンピン９１と、シューウェブ３１に形成された一対のゴム板用ステー９２と、一対のゴム板用ステー９２に固着されシューホールドダウンピン９１を挟圧するゴム板９３と、シューホールドダウンカップ９４とを備えている。シュークリアランスは、ゴム板９３の弾性変形が戻る復元力によって生成される。ライニング３３が変形した場合には、ライニング３３の変形が戻る力によってブレーキシュー３０が戻される。【選択図】 図１
Bibliography:Application Number: JP20140091389