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GB2003233A - Fluid pressure actuator - Google Patents

Fluid pressure actuator

Info

Publication number
GB2003233A
GB2003233A GB7834563A GB7834563A GB2003233A GB 2003233 A GB2003233 A GB 2003233A GB 7834563 A GB7834563 A GB 7834563A GB 7834563 A GB7834563 A GB 7834563A GB 2003233 A GB2003233 A GB 2003233A
Authority
GB
United Kingdom
Prior art keywords
piston
nut
force
springs
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.)
Withdrawn
Application number
GB7834563A
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.)
Sab Industri AB
Original Assignee
Sab Industri AB
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 Sab Industri AB filed Critical Sab Industri AB
Publication of GB2003233A publication Critical patent/GB2003233A/en
Withdrawn legal-status Critical Current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
    • B60T17/085—Spring loaded brake actuators
    • B60T17/086—Spring loaded brake actuators with emergency release device

Landscapes

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

Abstract

A vehicle spring brake-actuator comprises a cylinder 1 with a piston 3 loaded by springs 5, a screw-threaded piston rod 7 running in a nut 8 mounted in the piston 3, a control member 10 which engages the nut 8, and a detent plunger 11 which normally prevents the control member 10 and nut 8 from rotating. Pulling a ring 13 releases the detent plunger from the member 10, which rotates with the nut 8 to allow the piston to move under the force of the springs 5. This rotation of the member 10 is retarded by a retarder ring 14 which becomes pressed against a part of the cylinder 1 firstly by fluid impelled by the piston 3 and then by force from the piston 3 through resilient force-transmitting means 15. There are cushion means 16 to finally retard and arrest the piston 3. <IMAGE>
GB7834563A 1977-08-29 1978-08-25 Fluid pressure actuator Withdrawn GB2003233A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7709652 1977-08-29

Publications (1)

Publication Number Publication Date
GB2003233A true GB2003233A (en) 1979-03-07

Family

ID=20332107

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7834563A Withdrawn GB2003233A (en) 1977-08-29 1978-08-25 Fluid pressure actuator

Country Status (5)

Country Link
BR (1) BR7805591A (en)
DE (1) DE2837189A1 (en)
FR (1) FR2401809A1 (en)
GB (1) GB2003233A (en)
IT (1) IT1098683B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0034803B1 (en) * 1980-02-26 1983-07-27 Knorr-Bremse Ag Spring brake cylinder
GB2129496A (en) * 1982-10-19 1984-05-16 Repa Feinstanzwerk Gmbh Drive device
WO1996026854A1 (en) * 1995-02-28 1996-09-06 Mzt Hepos Combined brake cylinder adjuster

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3132580A1 (en) * 1981-08-18 1983-03-03 Knorr-Bremse GmbH, 8000 München Spring brake cylinder

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0034803B1 (en) * 1980-02-26 1983-07-27 Knorr-Bremse Ag Spring brake cylinder
GB2129496A (en) * 1982-10-19 1984-05-16 Repa Feinstanzwerk Gmbh Drive device
WO1996026854A1 (en) * 1995-02-28 1996-09-06 Mzt Hepos Combined brake cylinder adjuster

Also Published As

Publication number Publication date
DE2837189A1 (en) 1979-03-08
IT7827045A0 (en) 1978-08-25
IT1098683B (en) 1985-09-07
BR7805591A (en) 1979-04-17
FR2401809A1 (en) 1979-03-30

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)