DRUM BRAKE DEVICE

PROBLEM TO BE SOLVED: To prevent over-adjustment while suppressing increase in the mass and the cost.SOLUTION: A constricted section 40 is formed on a shoe web 31. The constricted section 40 is provided in a vertical intermediate position between an end 37 in which the shoe web 31 is abutted to a wh...

Full description

Saved in:
Bibliographic Details
Main Authors NISHII KAZUTOSHI, NISHIDA NAOTAKA, SUZUKI MASAZUMI, HIRAMATSU YUKIO
Format Patent
LanguageEnglish
Japanese
Published 23.07.2015
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
Online AccessGet full text

Cover

More Information
Summary:PROBLEM TO BE SOLVED: To prevent over-adjustment while suppressing increase in the mass and the cost.SOLUTION: A constricted section 40 is formed on a shoe web 31. The constricted section 40 is provided in a vertical intermediate position between an end 37 in which the shoe web 31 is abutted to a wheel cylinder 50, and an engagement section 36 in which the shoe web 31 is engaged with a strut 71. When an end side web 41 on an end side of the constricted section 40 is pressed by a piston 51 by a hydraulic pressure of the wheel cylinder 50, a metallic material of the shoe web 31 is elastically deformed by the pressing force, and the end side web 41 is oscillated around a center O, Thus, elongation of the strut 71 is restricted, and over-adjustment can be prevented. 【課題】 質量の増加、コスト増加を抑えてオーバーアジャストを防止する。【解決手段】 シューウェブ３１には、くびれ部４０が形成されている。くびれ部４０は、シューウェブ３１がホイールシリンダ５０と当接する先端部３７と、シューウェブ３１がストラット７１と係合する係合部３６との上下方向における中間位置に設けられる。くびれ部４０よりも先端側となる先端側ウェブ４１は、ホイールシリンダ５０の液圧によりピストン５１に押されたとき、その押圧力によりシューウェブ３１の金属材が弾性変形して、中心Ｏを中心として揺動する。これにより、ストラット７１の伸長動作が制限されてオーバーアジャストが防止される。【選択図】 図１
Bibliography:Application Number: JP20140002808