GB1418628A - Internal shoe drum brakes - Google Patents

Internal shoe drum brakes

Info

Publication number
GB1418628A
GB1418628A GB5849771A GB5849771A GB1418628A GB 1418628 A GB1418628 A GB 1418628A GB 5849771 A GB5849771 A GB 5849771A GB 5849771 A GB5849771 A GB 5849771A GB 1418628 A GB1418628 A GB 1418628A
Authority
GB
United Kingdom
Prior art keywords
spring
wedge
shoes
brake
shoe
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.)
Expired
Application number
GB5849771A
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.)
Automotive Products PLC
Original Assignee
Automotive Products PLC
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 Automotive Products PLC filed Critical Automotive Products PLC
Priority to GB5849771A priority Critical patent/GB1418628A/en
Priority to JP12606072A priority patent/JPS5712894B2/ja
Priority to JP47126059A priority patent/JPS4875975A/ja
Priority to FR7244855A priority patent/FR2170453A5/fr
Priority to FR7244854A priority patent/FR2170452A5/fr
Publication of GB1418628A publication Critical patent/GB1418628A/en
Expired 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
    • F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
    • F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
    • F16D65/22—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for pressing members apart, e.g. for drum brakes
    • 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
    • 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
    • F16D65/091—Pivots or supporting members therefor for axially holding the segments
    • 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
    • F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
    • F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
    • 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
    • F16D2125/00—Components of actuators
    • F16D2125/18—Mechanical mechanisms
    • F16D2125/58—Mechanical mechanisms transmitting linear movement
    • F16D2125/66—Wedges

Landscapes

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

Abstract

1418628 Internal shoe drum brakes AUTOMOTIVE PRODUCTS Ltd 6 Dec 1972 [16 Dec 1971] 58497/71 Heading F2E Brake shoes 19, 20 are applied by hydraulic pistons 13, 14 when liquid pressure is applied in space 16, and also by a wedge 26A applied by a parking-brake spring 44 which is normally lifted by pneumatic or hydraulic piston 41, the volume enclosed between pistons 13, 14 and a piston 47 connected to the wedge being arranged to be constant during downward movement of the wedge under the action of the spring. Because the cylinder 12 is single acting, in rotational direction A, both shoes are selfenergizing, but in the reverse direction, only shoe 19 is self-energizing. Lateral movement of the shoes is prevented by steady pins (69, Fig. 3B, not shown) having adjustable swivelable seatings at each end and carrying a compression spring. As shown in Fig. 2, manual slack take-up is achieved by a bolt 65, located by a detent spring 68 engaging notches 67 in a carrier sleeve 66. In an alternative form, Fig. 4, the bolt head is serrated and engages in a circular serrated spring 88 carried by the shoe-end. A bolt (60, Fig. 3A, not shown) is provided for manual release of the brake if the fluid pressure fails to lift the wedge.
GB5849771A 1971-12-16 1971-12-16 Internal shoe drum brakes Expired GB1418628A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB5849771A GB1418628A (en) 1971-12-16 1971-12-16 Internal shoe drum brakes
JP12606072A JPS5712894B2 (en) 1971-12-16 1972-12-15
JP47126059A JPS4875975A (en) 1971-12-16 1972-12-15
FR7244855A FR2170453A5 (en) 1971-12-16 1972-12-15
FR7244854A FR2170452A5 (en) 1971-12-16 1972-12-15

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5849771A GB1418628A (en) 1971-12-16 1971-12-16 Internal shoe drum brakes

Publications (1)

Publication Number Publication Date
GB1418628A true GB1418628A (en) 1975-12-24

Family

ID=10481772

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5849771A Expired GB1418628A (en) 1971-12-16 1971-12-16 Internal shoe drum brakes

Country Status (3)

Country Link
JP (2) JPS4875975A (en)
FR (2) FR2170452A5 (en)
GB (1) GB1418628A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR7506475A (en) * 1974-10-08 1977-04-19 Girling Ltd IMPROVEMENT IN A DRIVER FOR A VEHICLE BRAKE
GB1476798A (en) * 1974-11-15 1977-06-16 Girling Ltd Actuator assemblies for vehicle brakes
JPS5254869A (en) * 1975-10-29 1977-05-04 Tokyo Buhin Kougiyou Kk Wheel cylinder involving parking brake mechanism
DE2913127C2 (en) * 1979-04-02 1986-10-23 Deutsche Perrot-Bremse Gmbh, 6800 Mannheim Spreading device for a duo-duplex or servo brake
DE3026938A1 (en) * 1980-07-16 1982-02-04 Deutsche Perrot-Bremse Gmbh, 6800 Mannheim INNER JAW DRUM BRAKE
JPS59159402A (en) * 1983-03-02 1984-09-10 Nissan Motor Co Ltd Solenoid for controlling flow rate
JPS6086635U (en) * 1983-11-21 1985-06-14 埼玉機器株式会社 Foil cylinder for wedge brake
FR2560319B1 (en) * 1984-02-29 1986-07-04 Dba ACTUATION MECHANISM WITH HYDRAULIC AND MECHANICAL CONTROLS FOR DISC BRAKE

Also Published As

Publication number Publication date
JPS4875975A (en) 1973-10-12
JPS4875976A (en) 1973-10-12
FR2170452A5 (en) 1973-09-14
FR2170453A5 (en) 1973-09-14
JPS5712894B2 (en) 1982-03-13

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee