GB1084410A - Improvements in disc brakes - Google Patents

Improvements in disc brakes

Info

Publication number
GB1084410A
GB1084410A GB5658666A GB5658666A GB1084410A GB 1084410 A GB1084410 A GB 1084410A GB 5658666 A GB5658666 A GB 5658666A GB 5658666 A GB5658666 A GB 5658666A GB 1084410 A GB1084410 A GB 1084410A
Authority
GB
United Kingdom
Prior art keywords
piston
cylinder
brake
disc
caliper
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
GB5658666A
Inventor
Stewart Kevern Hambling
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.)
Girling Ltd
Original Assignee
Girling 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
Priority to GB3849962A priority Critical patent/GB1070311A/en
Application filed by Girling Ltd filed Critical Girling Ltd
Priority to GB5658666A priority patent/GB1084410A/en
Publication of GB1084410A publication Critical patent/GB1084410A/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
    • F16D65/00—Parts or details
    • F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
    • F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
    • F16D65/18—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes
    • 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
    • F16D55/228—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 separate actuating member for each side
    • 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
    • F16D65/54—Slack adjusters mechanical self-acting in one direction for adjusting excessive play by means of direct linear adjustment
    • 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
    • F16D2121/00—Type of actuator operation force
    • F16D2121/02—Fluid pressure
    • 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
    • F16D2123/00—Multiple operation forces

Landscapes

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

Abstract

1,084,410. Disc brakes. GIRLING Ltd. Jan. 22, 1965, No. 56586/66. Divided out of 1,070,311. Headings F2E and F2F. In a disc brake of the kind incorporating friction pads 13, 17 adapted to be applied to opposite sides of a rotatable brake disc 10, the friction pads are mounted in a caliper 11 which is pivoted at 12 and each friction pad is applied to the brake disc by a piston 15, 19 working in an hydraulic cylinder 16, 21, the two cylinders 16, 21 being connected to two separate hydraulic circuits to a tandem master cylinder 22, an automatic adjuster 31-33 being incorporated between one piston and the rear end of the cylinder in which it works to advance the piston in the cylinder as the friction pads wear. The primary pressure space 23 in the tandem master cylinder between the main piston 24 actuated by the brake pedal 25 and the secondary or floating piston 26 supplies liquid to the brake cylinder 21 and the secondary pressure space 27 between the piston 26 and the end of the cylinder supplies liquid to the brake cylinder 16. As the cylinder 21 is of greater diameter than the cylinder 16 the braking effort is normally applied by the piston 19 which applies the friction pads 17 directly to the disc, the reaction on the caliper applying the friction pad 13. In the event of failure of the line between the master cylinder and the brake cylinder 21 the pedal advances the main piston 24 until it engages an axial extension 29 on the secondary piston 26 and advances the latter piston directly to supply liquid under pressure to the cylinder 16 so that the piston 15 applies the brake pad 13 directly and the reaction on the caliper 11 moves the other friction pad 17 into frictional contact with the brake disc 10. The automatic brake adjuster takes the form of a stem 31 screwed in an axial recess in the rear end of the piston, a stem being provided with a head provided with peripheral ratchet teeth co-operating with a spring- pressed pivoted pawl 33. During operation of the brake when the forward movement of the piston 19 exceeds the value dependent on the spacing of the ratchet teeth, the pawl rides over one or more teeth and as the piston returns the stem is rotated to advance the " off" position of the piston. An alternative form of automatic adjusting mechanism is disclosed in a Specification (Fig. 3 and Fig. 4, not shown) in which inclined pawl teeth (35) engage between an internal shoulder in an axial recess in the piston 19 and the thread of a screwed stem (36) fixed in the outer end of the cylinder. The piston 19 may be formed with recesses to receive a key by which the piston can be rotated to screw it back on the stem (36) when the friction pads have been renewed. Instead of the caliper being allowed to float, the caliper may be fixed and the disc may be allowed to move axially.
GB5658666A 1965-01-22 1965-01-22 Improvements in disc brakes Expired GB1084410A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB3849962A GB1070311A (en) 1965-01-22 1962-10-11 Improvements in disc brakes
GB5658666A GB1084410A (en) 1965-01-22 1965-01-22 Improvements in disc brakes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5658666A GB1084410A (en) 1965-01-22 1965-01-22 Improvements in disc brakes

Publications (1)

Publication Number Publication Date
GB1084410A true GB1084410A (en) 1967-09-20

Family

ID=10477008

Family Applications (2)

Application Number Title Priority Date Filing Date
GB3849962A Expired GB1070311A (en) 1965-01-22 1962-10-11 Improvements in disc brakes
GB5658666A Expired GB1084410A (en) 1965-01-22 1965-01-22 Improvements in disc brakes

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB3849962A Expired GB1070311A (en) 1965-01-22 1962-10-11 Improvements in disc brakes

Country Status (1)

Country Link
GB (2) GB1070311A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4494630A (en) * 1980-07-16 1985-01-22 Itt Industries, Inc. Floating-caliper spot-type disc brake
US5046590A (en) * 1987-12-04 1991-09-10 Elf France Braking device for a rotary element
CN102537351A (en) * 2011-12-31 2012-07-04 重庆长安汽车股份有限公司 Plastic clutch main cylinder sealing pad
CN105065509A (en) * 2015-09-09 2015-11-18 安徽工程大学 Floating caliper disc type brake device capable of being limited
CN114761699A (en) * 2019-12-16 2022-07-15 宝马股份公司 Fixed caliper brake with electromechanical hydraulic force transmission structure

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1262263A (en) * 1968-04-05 1972-02-02 Girling Ltd Improvements in or relating to vehicle disc brakes
DE3016783A1 (en) * 1980-04-30 1981-11-05 Alfred Teves Gmbh, 6000 Frankfurt Floating caliper disc brake - has auxiliary piston actuating adjacent shoe via expander mechanism supported on caliper

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4494630A (en) * 1980-07-16 1985-01-22 Itt Industries, Inc. Floating-caliper spot-type disc brake
US5046590A (en) * 1987-12-04 1991-09-10 Elf France Braking device for a rotary element
CN102537351A (en) * 2011-12-31 2012-07-04 重庆长安汽车股份有限公司 Plastic clutch main cylinder sealing pad
CN102537351B (en) * 2011-12-31 2014-09-10 重庆长安汽车股份有限公司 Plastic clutch main cylinder sealing pad
CN105065509A (en) * 2015-09-09 2015-11-18 安徽工程大学 Floating caliper disc type brake device capable of being limited
CN105065509B (en) * 2015-09-09 2017-05-10 安徽工程大学 Floating caliper disc type brake device capable of being limited
CN114761699A (en) * 2019-12-16 2022-07-15 宝马股份公司 Fixed caliper brake with electromechanical hydraulic force transmission structure
CN114761699B (en) * 2019-12-16 2024-04-23 宝马股份公司 Fixed caliper brake with electro-mechanical hydraulic power transmission structure

Also Published As

Publication number Publication date
GB1070311A (en) 1967-06-01

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