JPS6412143A - Drum brake device for vehicle - Google Patents

Drum brake device for vehicle

Info

Publication number
JPS6412143A
JPS6412143A JP16702687A JP16702687A JPS6412143A JP S6412143 A JPS6412143 A JP S6412143A JP 16702687 A JP16702687 A JP 16702687A JP 16702687 A JP16702687 A JP 16702687A JP S6412143 A JPS6412143 A JP S6412143A
Authority
JP
Japan
Prior art keywords
brake
brake shoe
inside peripheral
vehicle
web
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP16702687A
Other languages
Japanese (ja)
Inventor
Hiroaki Azuma
Kumiko Noda
Miyoka Tanaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mazda Motor Corp
Original Assignee
Mazda Motor Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mazda Motor Corp filed Critical Mazda Motor Corp
Priority to JP16702687A priority Critical patent/JPS6412143A/en
Publication of JPS6412143A publication Critical patent/JPS6412143A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/0006—Noise or vibration control

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

PURPOSE:To prevent the generation of brake noise by forming the inside peripheral faces of webs of a pair of brake shoes so that they have different natural frequency of both brake shoes. CONSTITUTION:One brake shoe 2a is formed into a shape so that a conventional concave part (indicated by an imaginary line) of the inside peripheral face of a web 3a is filled up, and the other brake shoe 2a is formed into a shape in which a concave part of the inside peripheral face of a web 36 is further deepened from a conventional part (indicated by an imaginary line). Thus, the primary bending frequency of the brake shoe 2a is raised whereas that of the other brake shoe is lowered, with the result that the resonance points of both the brake shoes 2a, 2b are greatly displaced to each other. The generation of brake noise can therefore be prevented.
JP16702687A 1987-07-06 1987-07-06 Drum brake device for vehicle Pending JPS6412143A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16702687A JPS6412143A (en) 1987-07-06 1987-07-06 Drum brake device for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16702687A JPS6412143A (en) 1987-07-06 1987-07-06 Drum brake device for vehicle

Publications (1)

Publication Number Publication Date
JPS6412143A true JPS6412143A (en) 1989-01-17

Family

ID=15842013

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16702687A Pending JPS6412143A (en) 1987-07-06 1987-07-06 Drum brake device for vehicle

Country Status (1)

Country Link
JP (1) JPS6412143A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996016275A1 (en) * 1994-11-19 1996-05-30 Tokyo Buhin Kogyo Co., Ltd. Drum brake for vehicles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996016275A1 (en) * 1994-11-19 1996-05-30 Tokyo Buhin Kogyo Co., Ltd. Drum brake for vehicles
US5971112A (en) * 1994-11-19 1999-10-26 Tokyo Buhin Kogyo Co., Ltd. Drum brake assembly and brake shoes for same

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