JPS6412142A - Drum brake device for vehicle - Google Patents

Drum brake device for vehicle

Info

Publication number
JPS6412142A
JPS6412142A JP62167725A JP16772587A JPS6412142A JP S6412142 A JPS6412142 A JP S6412142A JP 62167725 A JP62167725 A JP 62167725A JP 16772587 A JP16772587 A JP 16772587A JP S6412142 A JPS6412142 A JP S6412142A
Authority
JP
Japan
Prior art keywords
spring
brake shoe
piston
braking
strikes
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
JP62167725A
Other languages
Japanese (ja)
Inventor
Hiroaki Azuma
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 JP62167725A priority Critical patent/JPS6412142A/en
Publication of JPS6412142A publication Critical patent/JPS6412142A/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
    • F16D51/00—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like
    • 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
    • F16D51/00—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like
    • F16D51/16—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis
    • F16D51/18—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with two brake-shoes
    • F16D51/20—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with two brake-shoes extending in opposite directions from their pivots
    • F16D51/24—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with two brake-shoes extending in opposite directions from their pivots fluid actuated
    • 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
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
    • F16D65/08—Bands, shoes or pads; Pivots or supporting members therefor for internally-engaging brakes
    • F16D65/09—Pivots or supporting members therefor
    • 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
    • F16D65/02—Braking members; Mounting thereof
    • F16D2065/13—Parts or details of discs or drums
    • F16D2065/134—Connection
    • F16D2065/1392—Connection elements
    • F16D2065/1396—Ancillary resilient elements, e.g. anti-rattle or retraction springs

Landscapes

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

Abstract

PURPOSE:To improve durability of a damping member by providing a damping means capable of being deformed by light braking and a means for restricting deformation of the damping means below a specific amount at the time of strong braking on an area where a piston strikes a brake shoe. CONSTITUTION:At the time of light braking, when a piston 7 is operated, a sliding member 9 slides while moderately compressing a spring 10, a pressing force of the piston 7 is elastically transmitted to a brake shoe 4 through the spring 10 and the sliding member 9, and a damping effect of the brake shoe 4 can be obtained through the spring 10. On the other hand, at the time of strong braking, when a flatface portion 12a of a head of a stopper member 11 strikes the brake shoe 4, the compression of the spring 10 is limited to a fixed position, and further compression of the spring is blocked, so that the durability of the spring 10 is improved. Further, since the flat-face portion 12a of the head 12 of the stopper member 11 threaded into the piston 7 directly strikes the brake shoe 4, the pressing force is rigidly transmitted to the brake shoe 4, and thus-a feeling of rigidness in braking operation can be obtained.
JP62167725A 1987-07-07 1987-07-07 Drum brake device for vehicle Pending JPS6412142A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62167725A JPS6412142A (en) 1987-07-07 1987-07-07 Drum brake device for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62167725A JPS6412142A (en) 1987-07-07 1987-07-07 Drum brake device for vehicle

Publications (1)

Publication Number Publication Date
JPS6412142A true JPS6412142A (en) 1989-01-17

Family

ID=15855008

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62167725A Pending JPS6412142A (en) 1987-07-07 1987-07-07 Drum brake device for vehicle

Country Status (1)

Country Link
JP (1) JPS6412142A (en)

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