FR2220861A1 - Pressure operated switch for vehicle brake system - has different pressures for two switch positions and elastic electric conductor - Google Patents

Pressure operated switch for vehicle brake system - has different pressures for two switch positions and elastic electric conductor

Info

Publication number
FR2220861A1
FR2220861A1 FR7407647A FR7407647A FR2220861A1 FR 2220861 A1 FR2220861 A1 FR 2220861A1 FR 7407647 A FR7407647 A FR 7407647A FR 7407647 A FR7407647 A FR 7407647A FR 2220861 A1 FR2220861 A1 FR 2220861A1
Authority
FR
France
Prior art keywords
switch
brake system
electric conductor
vehicle brake
different pressures
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Withdrawn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
FR7407647A
Other languages
French (fr)
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.)
Lucas Electrical Co Ltd
Original Assignee
Lucas Electrical 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 Lucas Electrical Co Ltd filed Critical Lucas Electrical Co Ltd
Publication of FR2220861A1 publication Critical patent/FR2220861A1/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Withdrawn legal-status Critical Current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
    • B60T17/18—Safety devices; Monitoring
    • B60T17/22—Devices for monitoring or checking brake systems; Signal devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
    • H01H35/38—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by piston and cylinder
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H5/00—Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement
    • H01H5/04—Energy stored by deformation of elastic members
    • H01H5/18—Energy stored by deformation of elastic members by flexing of blade springs

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Push-Button Switches (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)

Abstract

The switch is independent from varying fluid pressures produced by depression of the brake pedal. It consists of a hollow body with an orifice for the admission of the fluid and has a moving part operated by the fluid pressure. An elastic part, carrying the contacts, has a snap action and at the same time modifies the pressure required for the switch operation. There is a coil spring providing the main spring force. The snap action element can work with this main spring or opposes it. The switch controls the stop lights on the vehicle and the brake pressure for switching off the lights is less than that for switching them on.
FR7407647A 1973-03-07 1974-03-06 Pressure operated switch for vehicle brake system - has different pressures for two switch positions and elastic electric conductor Withdrawn FR2220861A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1114373 1973-03-07

Publications (1)

Publication Number Publication Date
FR2220861A1 true FR2220861A1 (en) 1974-10-04

Family

ID=9980830

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7407647A Withdrawn FR2220861A1 (en) 1973-03-07 1974-03-06 Pressure operated switch for vehicle brake system - has different pressures for two switch positions and elastic electric conductor

Country Status (2)

Country Link
JP (1) JPS49125873A (en)
FR (1) FR2220861A1 (en)

Also Published As

Publication number Publication date
JPS49125873A (en) 1974-12-02

Similar Documents

Publication Publication Date Title
GB1305991A (en)
SE7709709L (en) CONTROL DEVICE FOR PRESSURE BRAKE SYSTEMS
ES452470A1 (en) Membrane valve
GB1400341A (en) Push button key switch assembly
US2528035A (en) Switch
KR900000943A (en) Electrical Contactors for Pneumatic Brake Boosters
GB1228400A (en)
FR2220861A1 (en) Pressure operated switch for vehicle brake system - has different pressures for two switch positions and elastic electric conductor
GB1100999A (en) Fluid pressure actuated switches
GB1483911A (en) Hydraulic actuating system suitable for actuating a high voltage circuit breaker
ES380360A1 (en) Braking pressure correcting valve control devices
GB1040423A (en) Pneumatic pressure operated electric switch
GB1132879A (en) Improvements in or relating to electric pressure-sensitive switches
NL145090B (en) PRESSURE SWITCH FOR CONTROLLING THE INFLATING PRESSURE OF A VEHICLE TIRE, THAT SWITCHES DEPENDING ON THE PRESSURE ON A MEMBRANE
FR2356257A1 (en) Gas pressure actuated switch - has pre-pressurising dash pot with down stream gas release valve mounted on mobile contact
FR2369485A1 (en) Multi-purpose brake pedal - has retarder switches and sprung roller running on profiled cam to locate switch positions
ES505237A1 (en) Electrical switches with a simplified assembly sequence.
IT1190559B (en) DUPLEX TYPE PNEUMATIC DISTRIBUTOR FOR BRAKING SYSTEMS FOR VEHICLES
GB694541A (en) Improvements in or relating to automotive vehicles, a creep-preventing system for automotive vehicles and a vehicle braking system
GB1032426A (en) Electric switching device
SE328049B (en)
KR850006345A (en) Electrical contactor for pneumatic servomotor of brake
GB1338945A (en) Mechanical servo means
GB1325922A (en) Electrical switches
GB1375033A (en)

Legal Events

Date Code Title Description
ST Notification of lapse