GB1460280A - Brake actuating mechanisms - Google Patents

Brake actuating mechanisms

Info

Publication number
GB1460280A
GB1460280A GB2253573A GB2253573A GB1460280A GB 1460280 A GB1460280 A GB 1460280A GB 2253573 A GB2253573 A GB 2253573A GB 2253573 A GB2253573 A GB 2253573A GB 1460280 A GB1460280 A GB 1460280A
Authority
GB
United Kingdom
Prior art keywords
brake
piston
housing
plunger
piston structure
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
GB2253573A
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 GB2253573A priority Critical patent/GB1460280A/en
Priority to DE19742422858 priority patent/DE2422858A1/en
Publication of GB1460280A publication Critical patent/GB1460280A/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
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/58—Combined or convertible systems
    • B60T13/581—Combined or convertible systems both hydraulic and pneumatic
    • B60T13/583—Combined or convertible systems both hydraulic and pneumatic using converters
    • 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
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
    • B60T13/26—Compressed-air systems
    • B60T13/38—Brakes applied by springs or weights and released by compressed air

Landscapes

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

Abstract

1460280 Brake systems; service cylinders CLAYTON DEWANDRE CO Ltd 6 May 1974 [11 May 1973] 22535/73 Heading F2F A brake actuating mechanism comprises a cylindrical housing 1 containing a piston structure 2 defining a spring chamber 27 and a compressed air chamber 10, and a separate hydraulic service cylinder unit 11 clamped or bolted to the housing 1, a plunger 20 providing a thrusttransmitting connection between a bolt 23 threaded to a nut 22 secured to the piston structure 1 and a piston 21 of the hydraulic cylinder unit 11 the bolt 23 being rotatable after a spring application of the brake for effecting release of the brake. In the embodiment of Figs. 1, 2 the unit 11 has a radial mounting flange 12 which is held fast against a ring structure 8 of the housing 1 by a two-part clamping ring 13. A hollow axial extension 14 projects into the housing 1 and into sliding engagement with a tubular axial extension 5 of the piston structure 2. The extension 5 extends within a hub portion 6 of a detachable end plate 3, and the nut 22 is secured to the enlarged free end of the extension 5. The plunger 20 is located within the extension 14 and one end of the plunger 20 is formed integral with or has operative connection with the piston 21. A breather drain 26 arranged at the lower side of the installed assembly communicates with the spring chamber 27 via slots 28 in the peripheral rim of the end plate 3. Normally compressed air in chamber 10 holds the piston structure 2 in the retracted position whilst a predetermined fall in the air pressure permits the piston structure 2 to move towards the unit 11, this movement being transmitted through the nut and bolt gear 22, 23 and the plunger 20 to the piston 21 to apply the brake. To release the brake while a supply of compressed air is not available, the head 24 of bolt 23 is rotated after removal of a dust cover 25 to permit the piston 21 to retract under the action of the brake pull-off springs. In the modification of Fig. 3 the hydraulic cylinder unit has an annular flange 30 bolted directly to an annular end wall 29 integral with housing 1. The end wall 29 is formed with an integral sleeve portion 32 upon which piston structure 2 slides.
GB2253573A 1973-05-11 1973-05-11 Brake actuating mechanisms Expired GB1460280A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB2253573A GB1460280A (en) 1973-05-11 1973-05-11 Brake actuating mechanisms
DE19742422858 DE2422858A1 (en) 1973-05-11 1974-05-10 BRAKE APPLICATION MECHANISM

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2253573A GB1460280A (en) 1973-05-11 1973-05-11 Brake actuating mechanisms

Publications (1)

Publication Number Publication Date
GB1460280A true GB1460280A (en) 1976-12-31

Family

ID=10180963

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2253573A Expired GB1460280A (en) 1973-05-11 1973-05-11 Brake actuating mechanisms

Country Status (2)

Country Link
DE (1) DE2422858A1 (en)
GB (1) GB1460280A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2142699A (en) * 1983-06-03 1985-01-23 Akebono Brake Ind Antilock system for air brake system
DE3742343A1 (en) * 1987-12-14 1989-06-22 Wabco Westinghouse Fahrzeug CHAMBER CONNECTED TO THE SURROUNDING AREA
US20160146274A1 (en) * 2013-06-28 2016-05-26 Wabco Europe Bvba Brake cylinder

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2142699A (en) * 1983-06-03 1985-01-23 Akebono Brake Ind Antilock system for air brake system
DE3742343A1 (en) * 1987-12-14 1989-06-22 Wabco Westinghouse Fahrzeug CHAMBER CONNECTED TO THE SURROUNDING AREA
US4889037A (en) * 1987-12-14 1989-12-26 Wabco Westinghouse Fahrzeugbremsen Gmbh Chamber equipped with a breather opening to the atmosphere
US20160146274A1 (en) * 2013-06-28 2016-05-26 Wabco Europe Bvba Brake cylinder
US10197118B2 (en) * 2013-06-28 2019-02-05 Wabco Europe Bvba Brake cylinder

Also Published As

Publication number Publication date
DE2422858A1 (en) 1974-11-28

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930506