GB925593A - Actuating means for internal shoe drum brakes - Google Patents

Actuating means for internal shoe drum brakes

Info

Publication number
GB925593A
GB925593A GB3357758A GB3357758A GB925593A GB 925593 A GB925593 A GB 925593A GB 3357758 A GB3357758 A GB 3357758A GB 3357758 A GB3357758 A GB 3357758A GB 925593 A GB925593 A GB 925593A
Authority
GB
United Kingdom
Prior art keywords
brake
lever
shoe
shoes
cylinder
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
GB3357758A
Inventor
Anthony William Harrison
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.)
Girling Ltd
Original Assignee
Girling Ltd
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 Girling Ltd filed Critical Girling Ltd
Priority to GB3357758A priority Critical patent/GB925593A/en
Publication of GB925593A publication Critical patent/GB925593A/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
    • F16D2125/64—Levers

Abstract

925,593. Internal shoe-drum brakes. GIRLING Ltd. Jan. 20, 1960 [Oct. 21, 1958], No. 33577/58. Class 103 (1). In an actuating means for brake shoes of internal shoe drum brakes of the type in which two arcuate shoes co-operating with a rotatable drum are mounted to rock or slide at one end on a stationary anchorage on the brake backplate 11 and are adapted to be separated at the other end by an hydraulic brake cylinder 10 with which is associated a lever 19 for separating the shoes mechanically for parking, the lever 19 is mounted for rocking or pivotal movement about a fulcrum formed by nose 29 on the lever abutting hardened block 22 in a recess in the cylinder 10 situated on that side of the cylinder remote from the brake backplate 11 and an intermediate part of the lever engages through transverse pin 23 with a free piston 16 coaxial with the working piston 14 and co-operating with one of the brake shoes 17, the outer end of the lever 19 extending through an opening in the brake back-plate for connecting to a vehicle hand brake lever through suitable rigging 25, 26. The lever therefore acts as of the second order. When the brake is applied mechanically, the lever 19 is moved angularly about its fulcrum and advances the free piston 16 to apply one brake shoe, the working piston 14 remaining stationary, and the reaction on the fulcrum 22 moves the cylinder assembly in the opposite direction to apply the other shoe. The brake may be applied hydraulically through fluid connection 28. In an alternative construction (not illustrated) the free piston 16 is omitted and the actuating lever 19 engages the web 17 of the shoe directly.
GB3357758A 1958-10-21 1958-10-21 Actuating means for internal shoe drum brakes Expired GB925593A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3357758A GB925593A (en) 1958-10-21 1958-10-21 Actuating means for internal shoe drum brakes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3357758A GB925593A (en) 1958-10-21 1958-10-21 Actuating means for internal shoe drum brakes

Publications (1)

Publication Number Publication Date
GB925593A true GB925593A (en) 1963-05-08

Family

ID=10354734

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3357758A Expired GB925593A (en) 1958-10-21 1958-10-21 Actuating means for internal shoe drum brakes

Country Status (1)

Country Link
GB (1) GB925593A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992017711A1 (en) * 1991-04-04 1992-10-15 Brake And Clutch Industries Australia Pty. Ltd Drum brake actuator
AU645675B2 (en) * 1991-04-04 1994-01-20 Brake And Clutch Industries Australia Pty. Ltd. Drum brake actuator
US5484042A (en) * 1991-04-04 1996-01-16 Brake And Clutch Industries Australia Pty, Ltd. Fluid pressure and mechanical drum brake actuator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992017711A1 (en) * 1991-04-04 1992-10-15 Brake And Clutch Industries Australia Pty. Ltd Drum brake actuator
AU645675B2 (en) * 1991-04-04 1994-01-20 Brake And Clutch Industries Australia Pty. Ltd. Drum brake actuator
US5484042A (en) * 1991-04-04 1996-01-16 Brake And Clutch Industries Australia Pty, Ltd. Fluid pressure and mechanical drum brake actuator

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