FR2258994A1 - Safety device for brake cylinder - has valve reducing effort on piston until set piston travel - Google Patents

Safety device for brake cylinder - has valve reducing effort on piston until set piston travel

Info

Publication number
FR2258994A1
FR2258994A1 FR7403082A FR7403082A FR2258994A1 FR 2258994 A1 FR2258994 A1 FR 2258994A1 FR 7403082 A FR7403082 A FR 7403082A FR 7403082 A FR7403082 A FR 7403082A FR 2258994 A1 FR2258994 A1 FR 2258994A1
Authority
FR
France
Prior art keywords
piston
safety device
brake cylinder
cylinder
until set
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.)
Granted
Application number
FR7403082A
Other languages
French (fr)
Other versions
FR2258994B3 (en
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.)
NEZONDET JEAN PIERRE
Original Assignee
NEZONDET JEAN PIERRE
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 NEZONDET JEAN PIERRE filed Critical NEZONDET JEAN PIERRE
Priority to FR7403082A priority Critical patent/FR2258994A1/en
Publication of FR2258994A1 publication Critical patent/FR2258994A1/en
Application granted granted Critical
Publication of FR2258994B3 publication Critical patent/FR2258994B3/fr
Granted 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
    • F16D65/38—Slack adjusters
    • F16D65/40—Slack adjusters mechanical
    • F16D65/42—Slack adjusters mechanical non-automatic
    • F16D65/46—Slack adjusters mechanical non-automatic with screw-thread and nut
    • 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
    • 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)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Braking Systems And Boosters (AREA)
  • Braking Arrangements (AREA)

Abstract

The cylinder (1) has a piston (2) acted on by pressure fed by a pipe (3). The piston is solid with a rod (2a) passing through the cylinder end (2a). A spring (4) is mounted in the cylinder. The end of the rod (2a) is solid with a sliding device (5) of two slots which can move relative to a finger (6). There is a shaft (7) and two arms (8), (9) coming up under the sliding device (5). These arms are held by a threaded tie (10) and screws. A thin disc (11) is fixed to the piston (2). Another rod (13a) connects to the sliding piece and a membrane type piston (13). The spring assures braking when the vehicle is parked.
FR7403082A 1974-01-30 1974-01-30 Safety device for brake cylinder - has valve reducing effort on piston until set piston travel Granted FR2258994A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7403082A FR2258994A1 (en) 1974-01-30 1974-01-30 Safety device for brake cylinder - has valve reducing effort on piston until set piston travel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7403082A FR2258994A1 (en) 1974-01-30 1974-01-30 Safety device for brake cylinder - has valve reducing effort on piston until set piston travel

Publications (2)

Publication Number Publication Date
FR2258994A1 true FR2258994A1 (en) 1975-08-22
FR2258994B3 FR2258994B3 (en) 1976-11-26

Family

ID=9134223

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7403082A Granted FR2258994A1 (en) 1974-01-30 1974-01-30 Safety device for brake cylinder - has valve reducing effort on piston until set piston travel

Country Status (1)

Country Link
FR (1) FR2258994A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5255961A (en) * 1989-11-01 1993-10-26 Graham John M Multi-chamber brake actuator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5255961A (en) * 1989-11-01 1993-10-26 Graham John M Multi-chamber brake actuator
US5393130A (en) * 1989-11-01 1995-02-28 Graham; John M. Method of supplying a higher pressure reserve air supply for air brake system

Also Published As

Publication number Publication date
FR2258994B3 (en) 1976-11-26

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Legal Events

Date Code Title Description
ST Notification of lapse