GB1024449A - Improvements in and relating to internal shoe drum brakes - Google Patents

Improvements in and relating to internal shoe drum brakes

Info

Publication number
GB1024449A
GB1024449A GB166164A GB166164A GB1024449A GB 1024449 A GB1024449 A GB 1024449A GB 166164 A GB166164 A GB 166164A GB 166164 A GB166164 A GB 166164A GB 1024449 A GB1024449 A GB 1024449A
Authority
GB
United Kingdom
Prior art keywords
roller
brake
actuator
pair
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
GB166164A
Inventor
Duncan William Osborne
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 GB166164A priority Critical patent/GB1024449A/en
Publication of GB1024449A publication Critical patent/GB1024449A/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
    • 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

1,024,449. Internal shoe drum brakes; fluid pressure brakes. AUTOMOTIVE PRODUCTS CO. Ltd. Feb. 4, 1965 [Jan. 14, 1964], No. 1661/64. Headings F2E and F2F. A brake shoe expending mechanism for internal shoe drum brakes comprising an actuator 16a slidable between the adjacent ends of the brake shoes or shoeoperating members 8 and 9 having complementary inclined surfaces 12, 17 with a roller 15 disposed between each pair of said surfaces, is characterized in that each roller has bearing portions 16 at its opposite ends located in roller-supporting slots 14 associated with the respective shoe or shoeoperating member. As shown, each roller is reduced at its opposite ends to provide the roller-bearing portions 16 which are located in a pair of slotted plates 13 secured to the respective tappet member 8 or 9, the slots extending parallel to the inclined surface 12 of the respective tappet. Alternatively, the slots 14 may be provided in the inner ends of the tappets. The actuator, which is operated by push-rod 7 of an air-operated servo-device 6 mounted on the brake back plate 1, has flaired portions 19 conforming to the roller diameters to engage the rollers against abutment surface 18 of the tappet housing 10 on retraction of the actuator, thereby aligning said rollers in the " brake off " position. As illustrated in Figs. 1 and 2 (not shown), the tappet housing is mounted on the brake back plate between adjacent ends of a pair of shoes, thrust means, incorporating wearadjustment means, being disposed between the opposite pair of adjacent shoe ends. The actuator 16a may be operated mechanically.
GB166164A 1964-01-14 1964-01-14 Improvements in and relating to internal shoe drum brakes Expired GB1024449A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB166164A GB1024449A (en) 1964-01-14 1964-01-14 Improvements in and relating to internal shoe drum brakes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB166164A GB1024449A (en) 1964-01-14 1964-01-14 Improvements in and relating to internal shoe drum brakes

Publications (1)

Publication Number Publication Date
GB1024449A true GB1024449A (en) 1966-03-30

Family

ID=9725853

Family Applications (1)

Application Number Title Priority Date Filing Date
GB166164A Expired GB1024449A (en) 1964-01-14 1964-01-14 Improvements in and relating to internal shoe drum brakes

Country Status (1)

Country Link
GB (1) GB1024449A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3604542A (en) * 1968-12-30 1971-09-14 Girling Ltd Vehicle brake actuator mounting
WO2013087746A1 (en) * 2011-12-16 2013-06-20 Saf-Holland Gmbh Brake system of a drum brake

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3604542A (en) * 1968-12-30 1971-09-14 Girling Ltd Vehicle brake actuator mounting
WO2013087746A1 (en) * 2011-12-16 2013-06-20 Saf-Holland Gmbh Brake system of a drum brake
CN104011421A (en) * 2011-12-16 2014-08-27 塞夫霍兰德有限公司 Brake System Of A Drum Brake
EP2751439B1 (en) 2011-12-16 2016-04-06 SAF-HOLLAND GmbH Brake system of a drum brake
US9464679B2 (en) 2011-12-16 2016-10-11 Saf-Holland Gmbh Brake system of a drum brake
CN104011421B (en) * 2011-12-16 2019-01-08 塞夫霍兰德有限公司 The braking system of drum brake

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