GB2125122A - A brake pad for use in a disc brake - Google Patents

A brake pad for use in a disc brake Download PDF

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Publication number
GB2125122A
GB2125122A GB08221641A GB8221641A GB2125122A GB 2125122 A GB2125122 A GB 2125122A GB 08221641 A GB08221641 A GB 08221641A GB 8221641 A GB8221641 A GB 8221641A GB 2125122 A GB2125122 A GB 2125122A
Authority
GB
United Kingdom
Prior art keywords
brake pad
pad
brake
strip
substantially laminar
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Withdrawn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
GB08221641A
Inventor
Roy David Matthews
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.)
FIBRAX Ltd
Original Assignee
FIBRAX 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 FIBRAX Ltd filed Critical FIBRAX Ltd
Priority to GB08221641A priority Critical patent/GB2125122A/en
Publication of GB2125122A publication Critical patent/GB2125122A/en
Withdrawn legal-status Critical Current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
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/02—Compositions of linings; Methods of manufacturing
    • 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
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
    • F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. 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
    • F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
    • F16D66/02—Apparatus for indicating wear
    • 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
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • 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
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D2069/002—Combination of different friction materials
    • 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
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D2069/004—Profiled friction surfaces, e.g. grooves, dimples
    • 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
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/04—Attachment of linings
    • F16D2069/0425—Attachment methods or devices
    • F16D2069/0441—Mechanical interlocking, e.g. roughened lining carrier, mating profiles on friction material and lining carrier
    • 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
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/04—Attachment of linings
    • F16D2069/0425—Attachment methods or devices
    • F16D2069/045—Bonding
    • F16D2069/0466—Bonding chemical, e.g. using adhesives, vulcanising

Abstract

The pad comprises a substantially laminar portion having a flat major surface which acts as a braking surface in use of the pad, the major surface comprises first and second surface parts provided by friction material (2) comprising part of the said portion and, between the said first and second surface parts, a third surface part provided by a piece (4) of chrome-tanned leather comprising another part of the said portion. As shown, piece (4) is in the form of a strip received and bonded in a groove in a member providing the friction material. The laminar portion is carried by a support member of steel. <IMAGE>

Description

SPECIFICATION A brake pad The present invention relates to a brake pad, more particularly to a brake pad for use in a disc brake.
According to the present invention, there is provided a brake pad for use in a disc brake, the pad comprising a substantially laminar portion having a flat major surface which acts as a braking surface in use of the pad, in which pad the said major surface comprises first and second surface parts provided by friction material comprising part of the said portion and, between the said first and second surface parts, a third surface part provided by a piece of chrome-tanned leather comprising another part of the said portion.
The said piece could be in the form of a strip, which could be received in a groove in a member of such friction material, comprising the firstmentioned part of the said portion and providing the said first and second surface parts.
The said first and second surface parts could each be relatively large compared with the said third surface part.
The said substantially laminar portion could be carried by a substantially laminar support member of, for example, steel.
The present invention will now be described, by way of example, with reference to the accompanying drawings, in which: Figure 1 is a front view of a brake pad, showing the braking surface; Figure 2 is a rear view of the brake pad; Figure 3 is a view in the direction of arrow A in Figure 1; and Figure 4 is a view in the direction of arrow B in Figure 1.
Referring to the drawings, a brake pad for use in a disc brake in a motorcycle or, for example, a three-wheeled vehicle comprises a substantially laminar support member 1 made of steel which carries a substantially laminar portion providing the braking surface of the brake pad. The substantially laminar portion carried by the member 1 comprises a member 2 of friction material fixed to the member 1 (parts 3 of the member 2 engaging in circular holes in the member 1) and a strip 4 of chrome-tanned leather received in a groove in the member 2. It will be seen that the braking surface of the disc pad comprises first and second relatively large surface parts provided by the member 2 and, between them, a third surface part provided by the strip 4.
The strip 4 is about 41 mm long, about 12 mm wide and about 4 mm thick. A line 5 is painted in the position indicated in Figure 3 for indicating, when the brake pad has worn down to the line, that the brake pad should be replaced.
The member 2 could be of any friction material conventionally used in brake pads for use in disc brakes in motorcycles, and the pad described has the advantage that it reduces the stopping distance of a motorcycle in wet weather, due to the effect of the strip 4 of chrome-tanned, leather whilst retaining the existing dry weather performance of such a brake pad.
The above-described brake pad can be manufactured from a conventional brake pad for use in a disc brake in a motorcycle, already having the member 1 and the member 2, but with the latter being planar across the braking surface, by cutting a groove in the member 2 for receiving the strip 4; coating a face of a piece of chrome-tanned leather (which could, for example, be of ox or buffalo hide) with a bonding agent, such as "CHEMLOK"; pre-shrinking and de-moisturing the piece of chrome-tanned leather; cutting the piece of chrome-tanned leather into strips each of the appropriate size for strip 4; receiving such a strip 4 in the groove in the member 2 with the bonding agent-coated face inwards; and applying pressure to the strip to ensure bonding thereof in the groove.
1. A brake pad for use in a disc brake, the pad comprising a substantially laminar portion having a flat major surface which acts as a braking surface in use of the pad, in which pad the said major surface comprises first and second surface parts provided by friction material comprising part of the said portion and, between the said first and second surface parts, a third surface part provided by a piece of chrome-tanned leather comprising another part of the said portion.
2. A brake pad according to claim 1, wherein the said piece in the form of a strip.
3. A brake pad according to claim 2, wherein the strip is received in a groove in a member of such friction material, comprising the firstmentioned part of the said portion and providing the said first and second surface parts.
4. A brake pad according to any preceding claim, wherein the said first and second surface parts are each relatively large compared with the said third surface part.
5. A brake pad according to any preceding claim, wherein the said substantially laminar portion is carried by a substantially laminar support member.
6. A brake pad according to claim 5, wherein the support member is of steel.
7. A brake pad for use in a disc brake, substantially as herein described with reference to the accompanying drawings.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (7)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION A brake pad The present invention relates to a brake pad, more particularly to a brake pad for use in a disc brake. According to the present invention, there is provided a brake pad for use in a disc brake, the pad comprising a substantially laminar portion having a flat major surface which acts as a braking surface in use of the pad, in which pad the said major surface comprises first and second surface parts provided by friction material comprising part of the said portion and, between the said first and second surface parts, a third surface part provided by a piece of chrome-tanned leather comprising another part of the said portion. The said piece could be in the form of a strip, which could be received in a groove in a member of such friction material, comprising the firstmentioned part of the said portion and providing the said first and second surface parts. The said first and second surface parts could each be relatively large compared with the said third surface part. The said substantially laminar portion could be carried by a substantially laminar support member of, for example, steel. The present invention will now be described, by way of example, with reference to the accompanying drawings, in which: Figure 1 is a front view of a brake pad, showing the braking surface; Figure 2 is a rear view of the brake pad; Figure 3 is a view in the direction of arrow A in Figure 1; and Figure 4 is a view in the direction of arrow B in Figure 1. Referring to the drawings, a brake pad for use in a disc brake in a motorcycle or, for example, a three-wheeled vehicle comprises a substantially laminar support member 1 made of steel which carries a substantially laminar portion providing the braking surface of the brake pad. The substantially laminar portion carried by the member 1 comprises a member 2 of friction material fixed to the member 1 (parts 3 of the member 2 engaging in circular holes in the member 1) and a strip 4 of chrome-tanned leather received in a groove in the member 2. It will be seen that the braking surface of the disc pad comprises first and second relatively large surface parts provided by the member 2 and, between them, a third surface part provided by the strip 4. The strip 4 is about 41 mm long, about 12 mm wide and about 4 mm thick. A line 5 is painted in the position indicated in Figure 3 for indicating, when the brake pad has worn down to the line, that the brake pad should be replaced. The member 2 could be of any friction material conventionally used in brake pads for use in disc brakes in motorcycles, and the pad described has the advantage that it reduces the stopping distance of a motorcycle in wet weather, due to the effect of the strip 4 of chrome-tanned, leather whilst retaining the existing dry weather performance of such a brake pad. The above-described brake pad can be manufactured from a conventional brake pad for use in a disc brake in a motorcycle, already having the member 1 and the member 2, but with the latter being planar across the braking surface, by cutting a groove in the member 2 for receiving the strip 4; coating a face of a piece of chrome-tanned leather (which could, for example, be of ox or buffalo hide) with a bonding agent, such as "CHEMLOK"; pre-shrinking and de-moisturing the piece of chrome-tanned leather; cutting the piece of chrome-tanned leather into strips each of the appropriate size for strip 4; receiving such a strip 4 in the groove in the member 2 with the bonding agent-coated face inwards; and applying pressure to the strip to ensure bonding thereof in the groove. CLAIMS
1. A brake pad for use in a disc brake, the pad comprising a substantially laminar portion having a flat major surface which acts as a braking surface in use of the pad, in which pad the said major surface comprises first and second surface parts provided by friction material comprising part of the said portion and, between the said first and second surface parts, a third surface part provided by a piece of chrome-tanned leather comprising another part of the said portion.
2. A brake pad according to claim 1, wherein the said piece in the form of a strip.
3. A brake pad according to claim 2, wherein the strip is received in a groove in a member of such friction material, comprising the firstmentioned part of the said portion and providing the said first and second surface parts.
4. A brake pad according to any preceding claim, wherein the said first and second surface parts are each relatively large compared with the said third surface part.
5. A brake pad according to any preceding claim, wherein the said substantially laminar portion is carried by a substantially laminar support member.
6. A brake pad according to claim 5, wherein the support member is of steel.
7. A brake pad for use in a disc brake, substantially as herein described with reference to the accompanying drawings.
GB08221641A 1982-07-27 1982-07-27 A brake pad for use in a disc brake Withdrawn GB2125122A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08221641A GB2125122A (en) 1982-07-27 1982-07-27 A brake pad for use in a disc brake

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08221641A GB2125122A (en) 1982-07-27 1982-07-27 A brake pad for use in a disc brake

Publications (1)

Publication Number Publication Date
GB2125122A true GB2125122A (en) 1984-02-29

Family

ID=10531927

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08221641A Withdrawn GB2125122A (en) 1982-07-27 1982-07-27 A brake pad for use in a disc brake

Country Status (1)

Country Link
GB (1) GB2125122A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2148424A (en) * 1983-08-20 1985-05-30 Tokico Ltd Friction pad and its manufacture
DE10041294A1 (en) * 2000-08-23 2002-03-07 Tmd Friction Gmbh brake shoe
CN107605996A (en) * 2017-09-26 2018-01-19 安徽博耐克摩擦材料有限公司 A kind of brake block and its production mould

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB726381A (en) * 1952-07-10 1955-03-16 Daimler Benz Ag Improvements relating to brake linings
GB1083344A (en) * 1965-03-05 1967-09-13 Brake Linings Ltd Improvements relating to friction materials
GB1177046A (en) * 1967-09-09 1970-01-07 Pag Presswerk Ag Friction Member for Brakes
GB1232539A (en) * 1968-07-18 1971-05-19
GB2013291A (en) * 1977-10-05 1979-08-08 Ferodo Sa Brake Friction Elements
GB1560042A (en) * 1976-07-23 1980-01-30 Komori Seisakusho Co Composite friction elements
GB1579507A (en) * 1978-05-19 1980-11-19 Fibrax Ltd Brake-shoe
GB2056603A (en) * 1979-07-31 1981-03-18 Ti Raleigh Ltd Brake block
GB2086502A (en) * 1980-11-05 1982-05-12 Ti Raleigh Ind Ltd Brake block

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB726381A (en) * 1952-07-10 1955-03-16 Daimler Benz Ag Improvements relating to brake linings
GB1083344A (en) * 1965-03-05 1967-09-13 Brake Linings Ltd Improvements relating to friction materials
GB1177046A (en) * 1967-09-09 1970-01-07 Pag Presswerk Ag Friction Member for Brakes
GB1232539A (en) * 1968-07-18 1971-05-19
GB1560042A (en) * 1976-07-23 1980-01-30 Komori Seisakusho Co Composite friction elements
GB2013291A (en) * 1977-10-05 1979-08-08 Ferodo Sa Brake Friction Elements
GB1579507A (en) * 1978-05-19 1980-11-19 Fibrax Ltd Brake-shoe
GB2056603A (en) * 1979-07-31 1981-03-18 Ti Raleigh Ltd Brake block
GB2086502A (en) * 1980-11-05 1982-05-12 Ti Raleigh Ind Ltd Brake block

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2148424A (en) * 1983-08-20 1985-05-30 Tokico Ltd Friction pad and its manufacture
DE10041294A1 (en) * 2000-08-23 2002-03-07 Tmd Friction Gmbh brake shoe
DE10041294B4 (en) * 2000-08-23 2008-06-19 Tmd Friction Gmbh brake shoe
CN107605996A (en) * 2017-09-26 2018-01-19 安徽博耐克摩擦材料有限公司 A kind of brake block and its production mould

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Legal Events

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)