GB1169781A - A Mechanical Device for Automatically Compensating for Wear of the Brake Pads of a Disc Brake - Google Patents

A Mechanical Device for Automatically Compensating for Wear of the Brake Pads of a Disc Brake

Info

Publication number
GB1169781A
GB1169781A GB470867A GB470867A GB1169781A GB 1169781 A GB1169781 A GB 1169781A GB 470867 A GB470867 A GB 470867A GB 470867 A GB470867 A GB 470867A GB 1169781 A GB1169781 A GB 1169781A
Authority
GB
United Kingdom
Prior art keywords
nut
tube
spring
wear
screw
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
GB470867A
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.)
Messier SA
Original Assignee
Messier 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 Messier SA filed Critical Messier SA
Publication of GB1169781A publication Critical patent/GB1169781A/en
Expired 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
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
    • F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
    • F16D55/224—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members
    • F16D55/225—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads
    • F16D55/2255—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is pivoted
    • 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
    • F16D65/567—Slack adjusters mechanical self-acting in one direction for adjusting excessive play with screw-thread and nut for mounting on a disc brake
    • 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
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D2055/0004—Parts or details of disc brakes
    • F16D2055/005—Brakes straddling an annular brake disc radially internally
    • 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
    • F16D2125/00—Components of actuators
    • F16D2125/18—Mechanical mechanisms
    • F16D2125/20—Mechanical mechanisms converting rotation to linear movement or vice versa
    • F16D2125/34—Mechanical mechanisms converting rotation to linear movement or vice versa acting in the direction of the axis of rotation
    • F16D2125/40—Screw-and-nut
    • 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
    • F16D2125/00—Components of actuators
    • F16D2125/18—Mechanical mechanisms
    • F16D2125/58—Mechanical mechanisms transmitting linear movement
    • F16D2125/60—Cables or chains, e.g. Bowden cables

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

1,169,781. Disc brakes. MESSIER. 31 Jan., 1967 [16 Feb., 1966], No. 4708/67. Heading F2E. A disc brake wear compensating device comprises an axially-movable push rod 9, Fig. 1, fixed for rotation with a screw 3 engaged by balls with a nut 4, the push rod being screw-threaded into a tube nut 11 by screw threads of opposite hand and the same pitch so that between the screw and nut, two coil springs 14, 15 being arranged so that when the screw 3 is rotated one spring drives the tube nut 11 in the same direction and when the screw 3 is rotated in the opposite direction the other spring is driven by the tube nut for part of its rotation and is then wound round the tube nut to grip the tube nut thereby interrupting the rotation of the tube nut. In normal hydraulic operation the pressurized fluid arriving at orifice 25 causes piston 2 to apply the friction pads against the force of U- shaped spring 19. During mechanical actuation a lever 6 is rotated by a cable 20 by an amount (+5), Fig. 4 (not shown) which represents the movement required to take up the normal clearance of the brake (α). Fig. 8 (not shown) and the additional movement (αÁ) due to friction pad wear. Lever 6 rotates the ball screw 3 and push rod 9 in the same direction. The nut tube 3, 4 is also rotated in the same direction by spring 15 an end of which is engaged in a slot in the end of the ball screw (see Fig. 8) so that there is no relative movement of these parts as the assembly moves forward by an amount equal to the brake clearance. Spring 14, which normally grips the nut tube, is also rotated through the same angle so that its free end, which is engaged in a slot in the end of the nut 4, is engaged by a side (18a) of this slot. Because of its winding direction the spring 14 ceases to grip the nut tube 11 which continues to rotate through the additional movement due to friction pad wear. During brake release brake lever 6 is rotated in the opposite direction until the ball screw 3 abuts the cylinder bottom 31. The spring 14 rotates in the same directon with the nut tube since its free end disengages from the side of the slot in the nut 4. When its free end engages the opposite side of the slot the spring 14 grips the nut tube 11 which is prevented from rotating with the push rod 9 thereby changing their relative positions by an amount which corresponds to the additional movement due to brake wear. This causes the extremity of the push rod 9 to remain stationary with respect to the caliper 1 during the last phase of the brakerelease movement to take up any play present. In a modification a device, Fig. 2, is used additionally to the mechanical actuation to effect wear take-up during hydraulic actuation. During movement of piston 2 in direction A the normal clearance between circlips 28 and washer 29 is taken up and elastic rings 27 are moved along the push rod 9 a distance corresponding to the wear of the friction pads. During the return movement piston 2 engages the elastic ring 27 thus taking up wear.
GB470867A 1966-02-16 1967-01-31 A Mechanical Device for Automatically Compensating for Wear of the Brake Pads of a Disc Brake Expired GB1169781A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR49819A FR1478442A (en) 1966-02-16 1966-02-16 Mechanical disc brake control device, with automatic wear compensation

Publications (1)

Publication Number Publication Date
GB1169781A true GB1169781A (en) 1969-11-05

Family

ID=8601495

Family Applications (1)

Application Number Title Priority Date Filing Date
GB470867A Expired GB1169781A (en) 1966-02-16 1967-01-31 A Mechanical Device for Automatically Compensating for Wear of the Brake Pads of a Disc Brake

Country Status (3)

Country Link
DE (1) DE1575996B1 (en)
FR (1) FR1478442A (en)
GB (1) GB1169781A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2449232A1 (en) * 1979-02-14 1980-09-12 Kelsey Hayes Co VEHICLE BRAKE PUSH ROD ADJUSTMENT DEVICE AND BRAKE MECHANISM INCLUDING SUCH AN ADJUSTMENT DEVICE
FR2470294A1 (en) * 1979-11-20 1981-05-29 Teves Gmbh Alfred MECHANICAL ACTUATING DEVICE FOR DISC BRAKE WITH PARTIAL FITTINGS
EP0063871A1 (en) * 1981-04-29 1982-11-03 General Motors France Disc brake assembly
EP1312831A2 (en) * 2001-11-15 2003-05-21 Delphi Technologies, Inc. Ball-nut assembly and method for making
CN113309803A (en) * 2021-07-08 2021-08-27 安徽理工大学 Normally closed electromechanical disc brake
CN114382802A (en) * 2022-03-09 2022-04-22 浙江师范大学 Wire control actuator
CN114396439A (en) * 2022-03-09 2022-04-26 浙江师范大学 Wire control actuator
CN114483822A (en) * 2022-03-09 2022-05-13 浙江师范大学 Wire control actuator

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3500969A (en) * 1968-01-17 1970-03-17 George C Asher Plural actuated disc brake mechanism and adjusting means therefor
US3920102A (en) * 1973-01-19 1975-11-18 Tokico Ltd Disc brake actuating and adjusting mechanism
DE2462629C3 (en) * 1973-01-19 1981-07-02 Tokico Ltd., Kawasaki, Kanagawa Automatic adjustment device for a mechanically actuated partial-lined disc brake
DE2946850A1 (en) * 1979-11-20 1981-06-11 Alfred Teves Gmbh, 6000 Frankfurt MECHANICAL ACTUATING DEVICE FOR A PARTICULAR DISC BRAKE
DE2946854A1 (en) * 1979-11-20 1981-06-11 Alfred Teves Gmbh, 6000 Frankfurt MECHANICAL BRAKE-ACTUATING DEVICE FOR A PARTAL-DISC DISC BRAKE
DE2946852A1 (en) * 1979-11-20 1981-06-11 Alfred Teves Gmbh, 6000 Frankfurt MECHANICAL ACTUATING DEVICE FOR A PARTICULAR DISC BRAKE
DE2946851A1 (en) * 1979-11-20 1981-06-11 Alfred Teves Gmbh, 6000 Frankfurt MECHANICAL BRAKE-ACTUATING DEVICE FOR PARTIAL PAD DISC BRAKES
DE3040186A1 (en) * 1980-10-24 1982-06-03 Alfred Teves Gmbh, 6000 Frankfurt Mechanical actuator for partly lined disc brakes - has adjusting nut held directly or via sleeve in saddle bore
US4454933A (en) * 1981-04-27 1984-06-19 Kelsey Hayes Company Disc brake

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1337247A (en) * 1962-05-11 1963-09-13 Rech Etudes Prod Automatic wear adjustment device for the mechanical control of a parking and emergency brake
FR1340290A (en) * 1962-09-05 1963-10-18 Ardennaise D Essieux Soc Disc brake
FR1390934A (en) * 1963-07-26 1965-03-05 Rech Etudes Prod Hydraulic and mechanically controlled disc brake with automatic wear compensation
FR1412483A (en) * 1964-08-07 1965-10-01 Rech Etudes Prod Mechanical control with wear compensation for disc brake

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2449232A1 (en) * 1979-02-14 1980-09-12 Kelsey Hayes Co VEHICLE BRAKE PUSH ROD ADJUSTMENT DEVICE AND BRAKE MECHANISM INCLUDING SUCH AN ADJUSTMENT DEVICE
FR2470294A1 (en) * 1979-11-20 1981-05-29 Teves Gmbh Alfred MECHANICAL ACTUATING DEVICE FOR DISC BRAKE WITH PARTIAL FITTINGS
EP0063871A1 (en) * 1981-04-29 1982-11-03 General Motors France Disc brake assembly
EP1312831A2 (en) * 2001-11-15 2003-05-21 Delphi Technologies, Inc. Ball-nut assembly and method for making
EP1312831A3 (en) * 2001-11-15 2006-04-19 Delphi Technologies, Inc. Ball-nut assembly and method for making
CN113309803A (en) * 2021-07-08 2021-08-27 安徽理工大学 Normally closed electromechanical disc brake
CN114382802A (en) * 2022-03-09 2022-04-22 浙江师范大学 Wire control actuator
CN114396439A (en) * 2022-03-09 2022-04-26 浙江师范大学 Wire control actuator
CN114483822A (en) * 2022-03-09 2022-05-13 浙江师范大学 Wire control actuator
CN114396439B (en) * 2022-03-09 2023-06-30 浙江师范大学 Linear control actuator

Also Published As

Publication number Publication date
DE1575996B1 (en) 1970-07-23
FR1478442A (en) 1967-04-28

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