FR2328888A1 - Automatic drum brake adjustment - has screwed element in one brake piston rotated via friction springs by relative motion of pistons - Google Patents

Automatic drum brake adjustment - has screwed element in one brake piston rotated via friction springs by relative motion of pistons

Info

Publication number
FR2328888A1
FR2328888A1 FR7532592A FR7532592A FR2328888A1 FR 2328888 A1 FR2328888 A1 FR 2328888A1 FR 7532592 A FR7532592 A FR 7532592A FR 7532592 A FR7532592 A FR 7532592A FR 2328888 A1 FR2328888 A1 FR 2328888A1
Authority
FR
France
Prior art keywords
brake
piston
pistons
screw
relative motion
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
FR7532592A
Other languages
French (fr)
Other versions
FR2328888B1 (en
Inventor
Yves Meyer
Pierre Courbot
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.)
DBA SA
Original Assignee
DBA SA
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 DBA SA filed Critical DBA SA
Priority to FR7532592A priority Critical patent/FR2328888A1/en
Priority to NL7606149A priority patent/NL7606149A/en
Priority to GB2479076A priority patent/GB1509126A/en
Priority to IT2431476A priority patent/IT1079193B/en
Priority to BR7603980A priority patent/BR7603980A/en
Priority to DE19762628206 priority patent/DE2628206C2/en
Priority to AR26486576A priority patent/AR209687A1/en
Priority to JP12633376A priority patent/JPS5922094B2/en
Publication of FR2328888A1 publication Critical patent/FR2328888A1/en
Application granted granted Critical
Publication of FR2328888B1 publication Critical patent/FR2328888B1/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
    • F16D65/52—Slack adjusters mechanical self-acting in one direction for adjusting excessive play
    • F16D65/56—Slack adjusters mechanical self-acting in one direction for adjusting excessive play with screw-thread and nut
    • F16D65/561—Slack adjusters mechanical self-acting in one direction for adjusting excessive play with screw-thread and nut for mounting within the confines of a drum brake
    • F16D65/563—Slack adjusters mechanical self-acting in one direction for adjusting excessive play with screw-thread and nut for mounting within the confines of a drum brake arranged adjacent to service brake actuator, e.g. on parking brake lever, and not subjected to service brake force

Abstract

The arrangement provides automatic adjustment of a drum brake. It comprises actuating means which respond to the relative motion of the brake pistons so as to cause rotation of a screw element relative to one piston thereby adjusting this piston in axial direction. The actuating means are arranged between the screw and the other piston and comprise springs which are capable of frictionally gripping grooves on the screw when they are subjected to torsion. Tosion of the springs is caused by axial piston movement due to each spring having a radially projecting end engaging an inclined groove in a bush secured to the other piston. The grooves are inclined in opposite directions so that one spring is operative during application of the brake, when the pistons move apart, and the other spring during release of the brake causing opposite rotations of the screw by different amounts.
FR7532592A 1975-06-23 1975-10-24 Automatic drum brake adjustment - has screwed element in one brake piston rotated via friction springs by relative motion of pistons Granted FR2328888A1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
FR7532592A FR2328888A1 (en) 1975-10-24 1975-10-24 Automatic drum brake adjustment - has screwed element in one brake piston rotated via friction springs by relative motion of pistons
NL7606149A NL7606149A (en) 1975-06-23 1976-06-08 ADJUSTMENT DEVICE FOR A DRUM BRAKE.
IT2431476A IT1079193B (en) 1975-06-23 1976-06-15 RECORDING DEVICE FOR DRUM BRAKE
GB2479076A GB1509126A (en) 1975-06-23 1976-06-15 Adjusting device for a drum brake
BR7603980A BR7603980A (en) 1975-06-23 1976-06-21 DRUM BRAKE ADJUSTMENT DEVICE
DE19762628206 DE2628206C2 (en) 1975-06-23 1976-06-23 Automatic adjustment device for the inside of a drum brake
AR26486576A AR209687A1 (en) 1975-10-24 1976-09-27 ADJUSTER DEVICE FOR A DRUM BRAKE
JP12633376A JPS5922094B2 (en) 1975-10-24 1976-10-22 Drum brake adjustment device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7532592A FR2328888A1 (en) 1975-10-24 1975-10-24 Automatic drum brake adjustment - has screwed element in one brake piston rotated via friction springs by relative motion of pistons

Publications (2)

Publication Number Publication Date
FR2328888A1 true FR2328888A1 (en) 1977-05-20
FR2328888B1 FR2328888B1 (en) 1979-05-04

Family

ID=9161614

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7532592A Granted FR2328888A1 (en) 1975-06-23 1975-10-24 Automatic drum brake adjustment - has screwed element in one brake piston rotated via friction springs by relative motion of pistons

Country Status (3)

Country Link
JP (1) JPS5922094B2 (en)
AR (1) AR209687A1 (en)
FR (1) FR2328888A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2392283A1 (en) * 1977-05-25 1978-12-22 Perrot Bremse Gmbh Deutsche AUTOMATIC WEAR CATCHER FOR SIMPLEX AND DUO-DUPLEX BRAKES
FR2472112A1 (en) * 1979-12-20 1981-06-26 Lucas Industries Ltd ADJUSTING SPACER FOR DRUM BRAKE FOR VEHICLES
FR2480689A1 (en) * 1980-04-22 1981-10-23 Lucas Industries Ltd IMPROVEMENTS TO ACTUATION MECHANISMS FOR VEHICLE BRAKES

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2392283A1 (en) * 1977-05-25 1978-12-22 Perrot Bremse Gmbh Deutsche AUTOMATIC WEAR CATCHER FOR SIMPLEX AND DUO-DUPLEX BRAKES
FR2472112A1 (en) * 1979-12-20 1981-06-26 Lucas Industries Ltd ADJUSTING SPACER FOR DRUM BRAKE FOR VEHICLES
FR2480689A1 (en) * 1980-04-22 1981-10-23 Lucas Industries Ltd IMPROVEMENTS TO ACTUATION MECHANISMS FOR VEHICLE BRAKES

Also Published As

Publication number Publication date
JPS5253179A (en) 1977-04-28
JPS5922094B2 (en) 1984-05-24
FR2328888B1 (en) 1979-05-04
AR209687A1 (en) 1977-05-13

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Legal Events

Date Code Title Description
ST Notification of lapse