GB1394069A - Spring brake actuators - Google Patents

Spring brake actuators

Info

Publication number
GB1394069A
GB1394069A GB2235972A GB2235972A GB1394069A GB 1394069 A GB1394069 A GB 1394069A GB 2235972 A GB2235972 A GB 2235972A GB 2235972 A GB2235972 A GB 2235972A GB 1394069 A GB1394069 A GB 1394069A
Authority
GB
United Kingdom
Prior art keywords
spring
sleeve
ring
abutting
pressing
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
GB2235972A
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.)
Wabco Automotive UK Ltd
Original Assignee
Clayton Dewandre Co 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 Clayton Dewandre Co Ltd filed Critical Clayton Dewandre Co Ltd
Priority to GB2235972A priority Critical patent/GB1394069A/en
Publication of GB1394069A publication Critical patent/GB1394069A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/08—Brake cylinders other than ultimate actuators
    • B60T17/083—Combination of service brake actuators with spring loaded brake actuators

Landscapes

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

Abstract

1394069 Spring applied brake actuators CLAYTON DEWANDRE CO Ltd 2 May 1973 [12 May 1972] 22359/72 Heading F2F In a brake actuator having a piston structure actuated by a spring 15 to operate brakes, the spring acts through an annular thrust plate 16 and a bearing ring 17 of curved profile engaging a complementary surface on the structure so that spring thrust misalignment can be accommodated. The plate 16 has an angled surface 16a abutting the ring 17 of anti-friction material, which in turn abuts a sleeve 18 of the structure which comprises a dished pressing 2 or the ring 17 directly abuts the pressing. The actuator is combined with a compressed air actuated diaphragm 8, a rod 3 controlled by the piston 2 abutting the diaphragm in the rest position via a thrust plate or washer 11. For release of brakes if the air supply has failed a bolt 26 is turned to axially move a multi-armed spider 27 as shown, or a strap, engaging a radial abutment flange 18a of the sleeve 18 to retract the structure. During spring actuation, H-section guides 28 on the sleeve 18 slide relatively to the arms of the spider 27.
GB2235972A 1972-05-12 1972-05-12 Spring brake actuators Expired GB1394069A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2235972A GB1394069A (en) 1972-05-12 1972-05-12 Spring brake actuators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2235972A GB1394069A (en) 1972-05-12 1972-05-12 Spring brake actuators

Publications (1)

Publication Number Publication Date
GB1394069A true GB1394069A (en) 1975-05-14

Family

ID=10178112

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2235972A Expired GB1394069A (en) 1972-05-12 1972-05-12 Spring brake actuators

Country Status (1)

Country Link
GB (1) GB1394069A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0009961A1 (en) * 1978-10-02 1980-04-16 The Echlin Manufacturing Company Actuator for use in a braking system
FR2439907A1 (en) * 1978-10-25 1980-05-23 Caterpillar Tractor Co MANUAL RELEASE SYSTEM FOR SPRING TIGHTENED BRAKE ASSEMBLY AND RELEASED BY PRESSURE FLUID
GB2141176A (en) * 1983-05-31 1984-12-12 Bendix Ltd Spring force applying tensional force actuators
FR2559225A1 (en) * 1984-02-06 1985-08-09 Bosch Gmbh Robert Combined brake cylinder and hold-off cylinder
WO1996015014A2 (en) * 1994-11-04 1996-05-23 Indian Head Industries, Inc. Standard brake actuator service chamber and method of making same

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0009961A1 (en) * 1978-10-02 1980-04-16 The Echlin Manufacturing Company Actuator for use in a braking system
FR2439907A1 (en) * 1978-10-25 1980-05-23 Caterpillar Tractor Co MANUAL RELEASE SYSTEM FOR SPRING TIGHTENED BRAKE ASSEMBLY AND RELEASED BY PRESSURE FLUID
US4245724A (en) * 1978-10-25 1981-01-20 Caterpillar Tractor Co. Manual release for a spring applied brake assembly
GB2141176A (en) * 1983-05-31 1984-12-12 Bendix Ltd Spring force applying tensional force actuators
FR2559225A1 (en) * 1984-02-06 1985-08-09 Bosch Gmbh Robert Combined brake cylinder and hold-off cylinder
WO1996015014A2 (en) * 1994-11-04 1996-05-23 Indian Head Industries, Inc. Standard brake actuator service chamber and method of making same
WO1996015014A3 (en) * 1994-11-04 1996-08-08 Indian Head Inc Standard brake actuator service chamber and method of making same

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Legal Events

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