DRUM BRAKE DEVICE - TOYOTA MOTOR CORP

Title:

DRUM BRAKE DEVICE

Document Type and Number:

Japanese Patent JP2015132284

Kind Code:

A

Abstract:

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.

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WO/2003/072971	DRUM BRAKE COMPRISING ELASTICALLY-DEFORMABLE MEANS BETWEEN THE HYDRAULIC ACTUATOR AND AT LEAST ONE OF THE SHOES

Inventors:

NISHII KAZUTOSHI
NISHIDA NAOTAKA
HIRAMATSU YUKIO
SUZUKI MASAZUMI

Application Number:

JP2014002808A

Publication Date:

July 23, 2015

Filing Date:

January 10, 2014

Export Citation:

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Assignee:

TOYOTA MOTOR CORP

International Classes:

F16D65/09; F16D51/20; F16D65/56

Attorney, Agent or Firm:

Patent business corporation Prospec patent office

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