WO1999054636A1 - Improved disc brake pad assembly - Google Patents

Improved disc brake pad assembly Download PDF

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Publication number
WO1999054636A1
WO1999054636A1 PCT/US1999/008495 US9908495W WO9954636A1 WO 1999054636 A1 WO1999054636 A1 WO 1999054636A1 US 9908495 W US9908495 W US 9908495W WO 9954636 A1 WO9954636 A1 WO 9954636A1
Authority
WO
WIPO (PCT)
Prior art keywords
lamina
backing plate
plate element
adhered
disc brake
Prior art date
Application number
PCT/US1999/008495
Other languages
French (fr)
Inventor
David J. Smith
Original Assignee
Federal-Mogul Corporation
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 Federal-Mogul Corporation filed Critical Federal-Mogul Corporation
Priority to AU37503/99A priority Critical patent/AU3750399A/en
Publication of WO1999054636A1 publication Critical patent/WO1999054636A1/en

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
    • F16D65/02—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
    • F16D65/095—Pivots or supporting members therefor
    • F16D65/097—Resilient means interposed between pads and supporting members or other brake parts
    • F16D65/0971—Resilient means interposed between pads and supporting members or other brake parts transmitting brake actuation force, e.g. elements interposed between brake piston and pad
    • 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
    • F16D65/0006—Noise or vibration control
    • 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

Definitions

  • This invention relates generally to automobile disc brake systems, and particularly concerns a disc brake pad assembly having an improved method of attachment for noise reduction shims resulting in prolonged operating reliability.
  • Automobile disc brake systems are generally well known and many such systems incorporate into their disc brake pad assemblies one or more added noise damping lamina that are adhesively bonded into the assembly.
  • the prior art added noise damping components which tend to fail over time by delamination and/or detachment and in many instances become a safety hazard to satisfactory operation of the incorporating disc brake system.
  • Known examples of the prior art disc brake pad assemblies include the vibration dampening means of the disc brake disclosed in U.S. Patent No. 3,730,302 issued in the names of Ogawa et al . , the friction pad locating apparatus of U.S. Patent No. 3,918,555 issued in the name of Rath, and the disc brake nose reduction means of U.S. Patent No. 4,445,594 issued in the name of Hoffman, Jr. which involves clench tabs integrally formed in the pad assembly backing plate element.
  • a disc brake pad assembly having a metallic (usually steel) backing plate element with a conventional friction pad element adhesively bonded to one side of the backing plate element and with a laminated noise damping subassembly that is resistance welded to the other side or face of the improved disc brake pad assembly backing plate element.
  • the laminated subassembly element is comprised of one or more elastomeric vibration dampening laminae bonded to one or more alternating metal shim laminae. Some or all of the metal shim laminae are fastened to the metallic backing plate element by multiple resistance welds spaced-apart from each other.
  • Figure 1 is a top plan schematic view of portions of an automobile disc brake system having a preferred embodiment of the improved disc brake pad assembly of the present invention incorporated therein;
  • Figure 2 is an elevation view taken at line 2-2 of Figure 1;
  • Figure 3 is a section view taken at line 3-3 of Figure 2 ;
  • Figure 4 is a section view taken at line 4-4 of Figure 2 ;
  • Figure 5 is an elevation view similar to Figure 2 but of another embodiment of the disc brake pad assembly of the present invention.
  • Figure 6 is a section view taken at line 6-6 of Figure 5;
  • Figure 7 is a section view taken at line 7-7 of Figure 5;
  • Figure 8 is an elevation view similar to Figure 2 but of another embodiment of the disc brake pad assembly of the present invention;
  • Figure 9 is a section view taken at line 9-9 of Figure 8.
  • Figure 10 is a section view taken at line 10-10 of Figure
  • Figure 1 we schematically illustrate portions of an automobile disc brake system 10 having disc brake pad assemblies 12 and 14 constructed in accordance with the present invention positioned to either side of a conventional automobile wheel disc brake rotor 16 and a conventional disc brake caliper 18 having a reciprocable piston element 20 that functions, when actuated, to bring disc brake pad assemblies 12 and 14 into engagement with the opposite faces of disc brake rotor 16.
  • Disc brake pad assemblies 12 and 14 may have different shapes, but typically have identical constructions, and for that reason only assembly 12 is illustrated in greater detail in the drawings .
  • assembly 12 is comprised of a metallic backing plate element 22, a conventional friction pad element 24 that preferably is adhesively bonded to one principal face of backing plate element 22, and a laminated vibration dampener subassembly 26 that is joined to the other principal face of backing plate element 22 by resistance welding.
  • Figure 3 illustrates the positioning of laminated vibration dampener subassembly 26 on the one principal face of backing plate element 22, illustrates representative outlines of the metallic shim lamina 28 and elastomeric vibration dampener lamina 30 that comprise laminated vibration dampener subassembly 26, and also illustrates representative positioning of the multiple resistance welds 32 that in part join subassembly 26 to backing plate element 22.
  • the welds 32 are positioned at locations that are application specific and act through the elastomeric lamina 30 which is made from a thin layer (.001 inch) of material which conducts the current required for resistance welding.
  • Both backing plate element 22 and shim lamina 28 are preferably made of a low-carbon steel such as AISI 1010, 1020, etc. in order to minimize the formation of metal carbides in the assembly welds during the resistance welding process. Further, backing plate element 22 typically
  • each metallic shim lamina has a thickness in the approximate range of from 5/32 inch to 1/4 inch, whereas each metallic shim lamina is preferably thinner and typically has a thickness in the approximate range of from 0.008 inch to 0.020 inch.
  • spot welding electrode sizes and welding current densities are selected so as to minimize the penetration of weld heat affected zones.
  • four welds 32 are used to affix subassembly 26 to backing plate element 22.
  • Elastomeric vibration dampener lamina 30 is preferably made from a thin layer material such as nitrile or synthetic rubber, acrylic polymer, silicon polymer, fluoropolymer , or the like.
  • the elastomeric vibration dampener lamina 30 will be bonded over its principal surfaces to the metallic shim lamina 28 because of the bonding of the elastomeric lamina 30 to the metallic shim after the former has been heated.
  • FIGS 5 through 7 illustrate details of another embodiment 34 of the disc brake pad assembly of the present invention.
  • Disc brake pad assembly 34 differs from the embodiment of Figures 1 through 4 primarily in that multiple metallic shim laminae 28 and multiple elastomeric vibration dampener lamina 30 are provided.
  • the multiple resistance welds 32 affix one or more metallic shim lamina to backing plate 22.
  • the composition, thickness, resiliency, and weld details described in connection with the Figure 1 embodiment are the same for the embodiment of Figure 5 with the exception that six spot welds 32 are shown in Figures 5-7.
  • Figure 6 depicts a layer of elastomeric lamina 30 between backing plate 22 and metallic shim lamina 28 of vibration dampener subassembly 26, the elastomeric lamina 30 adjacent backing plate 22 is not required and metallic shim lamina 28 of subassembly 26 may be attached directly to backing plate 22.
  • FIGS 8 through 10 depict details of another embodiment 40 of the disc brake pad assembly of the present invention.
  • Disc brake pad assembly 40 differs from the embodiment of Figures 5 through 7 primarily in that vibration subassembly 42 has a multiple metallic shim laminae formed of top and bottom metallic shim lamina 46 and 48 where top shim lamina 46 has a smaller area than and does not completely overlie bottom shim lamina 48 and multiple elastomeric vibration dampener lamina 50.
  • Vibration subassembly 42 is affixed to backing plate 22 by having only bottom metallic shim lamina 48 resistance welded 32 thereto.
  • this embodiment may include multiple top and bottom metallic shim laminae.
  • the composition, thickness, resiliency, and weld details described in connection with the Figure 5 embodiment are the same.
  • Figure 10 depicts a layer of
  • the principal advantage associated with the present invention is found in the fact that the included laminated vibration dampener subassembly and its method of attachment to the assembly backing plate element by metal welding provides the incorporating disc brake pad assembly with effective brake noise dampening and also with a prolonged operating life in comparison with conventional disc brake pad assemblies by minimizing or even eliminating assembly failures attributed to dampener delamination and/or detachment.
  • the vibration dampener subassembly 26 may be affixed to the backing plate 22 by other types of welding such as laser welding, friction welding, ultrasonic welding, etc.
  • brazing is another possible method of attachment.

Landscapes

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

Abstract

A disc brake pad assembly (12, 14) is provided with a metallic backing plate (22), with a conventional friction pad (24) adhered to one face of the backing plate (22), and with a laminated vibration dampener subassembly (26) that is adhered to the backing plate (22) by resistance welds (32) to improve the assembly operating reliability.

Description

IN THE UNITED STATES PATENT AND TRADEMARK OFFICE
APPLICATION FOR UNITED STATES LETTERS PATENT
TITLE OF THE INVENTION:
Improved Disc Brake Pad Assembly.
CROSS-REFERENCE :
None .
FIELD OF THE INVENTION:
This invention relates generally to automobile disc brake systems, and particularly concerns a disc brake pad assembly having an improved method of attachment for noise reduction shims resulting in prolonged operating reliability.
BACKGROUND OF THE INVENTION:
Automobile disc brake systems are generally well known and many such systems incorporate into their disc brake pad assemblies one or more added noise damping lamina that are adhesively bonded into the assembly. However, it has been observed that the prior art added noise damping components which tend to fail over time by delamination and/or detachment and in many instances become a safety hazard to satisfactory operation of the incorporating disc brake system.
Known examples of the prior art disc brake pad assemblies include the vibration dampening means of the disc brake disclosed in U.S. Patent No. 3,730,302 issued in the names of Ogawa et al . , the friction pad locating apparatus of U.S. Patent No. 3,918,555 issued in the name of Rath, and the disc brake nose reduction means of U.S. Patent No. 4,445,594 issued in the name of Hoffman, Jr. which involves clench tabs integrally formed in the pad assembly backing plate element.
Other arrangements for incorporating noise damping lamina into a brake disc pad assembly include the slotted insulator teachings of U.S. Patent No. 4,603,760 granted to Myers, and the noise damped brake pad assembly of U.S. Patent No. 5,407,034 issued in the names of Vydra et al .
SUMMARY OF THE INVENTION:
In order to overcome the shortcomings of the prior art we provide a disc brake pad assembly having a metallic (usually steel) backing plate element with a conventional friction pad element adhesively bonded to one side of the backing plate element and with a laminated noise damping subassembly that is resistance welded to the other side or face of the improved disc brake pad assembly backing plate element. The laminated subassembly element is comprised of one or more elastomeric vibration dampening laminae bonded to one or more alternating metal shim laminae. Some or all of the metal shim laminae are fastened to the metallic backing plate element by multiple resistance welds spaced-apart from each other.
Other objectives of the present invention will become apparent from consideration of the drawings and detailed descriptions which follow.
BRIEF DESCRIPTION OF THE DRAWINGS:
Figure 1 is a top plan schematic view of portions of an automobile disc brake system having a preferred embodiment of the improved disc brake pad assembly of the present invention incorporated therein;
Figure 2 is an elevation view taken at line 2-2 of Figure 1;
Figure 3 is a section view taken at line 3-3 of Figure 2 ;
Figure 4 is a section view taken at line 4-4 of Figure 2 ;
Figure 5 is an elevation view similar to Figure 2 but of another embodiment of the disc brake pad assembly of the present invention;
Figure 6 is a section view taken at line 6-6 of Figure 5;
Figure 7 is a section view taken at line 7-7 of Figure 5; Figure 8 is an elevation view similar to Figure 2 but of another embodiment of the disc brake pad assembly of the present invention;
Figure 9 is a section view taken at line 9-9 of Figure 8; and
Figure 10 is a section view taken at line 10-10 of Figure
DETAILED DESCRIPTION:
In Figure 1 we schematically illustrate portions of an automobile disc brake system 10 having disc brake pad assemblies 12 and 14 constructed in accordance with the present invention positioned to either side of a conventional automobile wheel disc brake rotor 16 and a conventional disc brake caliper 18 having a reciprocable piston element 20 that functions, when actuated, to bring disc brake pad assemblies 12 and 14 into engagement with the opposite faces of disc brake rotor 16. Disc brake pad assemblies 12 and 14 may have different shapes, but typically have identical constructions, and for that reason only assembly 12 is illustrated in greater detail in the drawings .
As detailed in Figure 1, assembly 12 is comprised of a metallic backing plate element 22, a conventional friction pad element 24 that preferably is adhesively bonded to one principal face of backing plate element 22, and a laminated vibration dampener subassembly 26 that is joined to the other principal face of backing plate element 22 by resistance welding.
Figure 3 illustrates the positioning of laminated vibration dampener subassembly 26 on the one principal face of backing plate element 22, illustrates representative outlines of the metallic shim lamina 28 and elastomeric vibration dampener lamina 30 that comprise laminated vibration dampener subassembly 26, and also illustrates representative positioning of the multiple resistance welds 32 that in part join subassembly 26 to backing plate element 22. The welds 32 are positioned at locations that are application specific and act through the elastomeric lamina 30 which is made from a thin layer (.001 inch) of material which conducts the current required for resistance welding. Because the elastomeric lamina 30 is very thin it may be squeezed out of the space between shim lamina 28 and backing plate element 22 in the welding area when the subassembly 26 is subjected to the resistance welding process. Both backing plate element 22 and shim lamina 28 are preferably made of a low-carbon steel such as AISI 1010, 1020, etc. in order to minimize the formation of metal carbides in the assembly welds during the resistance welding process. Further, backing plate element 22 typically
5 has a thickness in the approximate range of from 5/32 inch to 1/4 inch, whereas each metallic shim lamina is preferably thinner and typically has a thickness in the approximate range of from 0.008 inch to 0.020 inch. Also, spot welding electrode sizes and welding current densities are selected so as to minimize the penetration of weld heat affected zones. In the embodiment depicted in Figure 2 four welds 32 are used to affix subassembly 26 to backing plate element 22.
Elastomeric vibration dampener lamina 30 is preferably made from a thin layer material such as nitrile or synthetic rubber, acrylic polymer, silicon polymer, fluoropolymer , or the like.
Also, the elastomeric vibration dampener lamina 30 will be bonded over its principal surfaces to the metallic shim lamina 28 because of the bonding of the elastomeric lamina 30 to the metallic shim after the former has been heated.
Figures 5 through 7 illustrate details of another embodiment 34 of the disc brake pad assembly of the present invention. Disc brake pad assembly 34 differs from the embodiment of Figures 1 through 4 primarily in that multiple metallic shim laminae 28 and multiple elastomeric vibration dampener lamina 30 are provided. The multiple resistance welds 32 affix one or more metallic shim lamina to backing plate 22. Generally, the composition, thickness, resiliency, and weld details described in connection with the Figure 1 embodiment are the same for the embodiment of Figure 5 with the exception that six spot welds 32 are shown in Figures 5-7. Additionally, although Figure 6 depicts a layer of elastomeric lamina 30 between backing plate 22 and metallic shim lamina 28 of vibration dampener subassembly 26, the elastomeric lamina 30 adjacent backing plate 22 is not required and metallic shim lamina 28 of subassembly 26 may be attached directly to backing plate 22.
Figures 8 through 10 depict details of another embodiment 40 of the disc brake pad assembly of the present invention. Disc brake pad assembly 40 differs from the embodiment of Figures 5 through 7 primarily in that vibration subassembly 42 has a multiple metallic shim laminae formed of top and bottom metallic shim lamina 46 and 48 where top shim lamina 46 has a smaller area than and does not completely overlie bottom shim lamina 48 and multiple elastomeric vibration dampener lamina 50. Vibration subassembly 42 is affixed to backing plate 22 by having only bottom metallic shim lamina 48 resistance welded 32 thereto. Of course this embodiment may include multiple top and bottom metallic shim laminae. Generally, the composition, thickness, resiliency, and weld details described in connection with the Figure 5 embodiment are the same.
Additionally, although Figure 10 depicts a layer of
7 elastomeric lamina 50 between backing plate 22 and bottom metallic shim lamina 48 of vibration dampener subassembly 42, the elastomeric lamina 50 adjacent backing plate 22 is not required and bottom metallic shim lamina 48 may be attached directly to backing plate 22.
The principal advantage associated with the present invention is found in the fact that the included laminated vibration dampener subassembly and its method of attachment to the assembly backing plate element by metal welding provides the incorporating disc brake pad assembly with effective brake noise dampening and also with a prolonged operating life in comparison with conventional disc brake pad assemblies by minimizing or even eliminating assembly failures attributed to dampener delamination and/or detachment. Although only the resistance welding has been discussed above, it is contemplated that the vibration dampener subassembly 26 may be affixed to the backing plate 22 by other types of welding such as laser welding, friction welding, ultrasonic welding, etc. Furthermore, brazing is another possible method of attachment.
Various changes in element shape, size, composition, and processing may be effected without departing from the meaning, scope, and intent of the claim definitions which follows.
We claim as our invention:

Claims

CLAIMS :
1. A disc brake pad assembly for incorporation into a disc brake system, and comprising: a metallic backing plate element having a pair of principal mounting surfaces; a friction pad element adhered to one of said metallic backing plate element pair of principal mounting surfaces; and a laminated vibration dampener subassembly that is comprised of a metal shim lamina and an elastomeric lamina and that is adhered to the other of said metallic backing plate element pair of principal mounting surfaces, said laminated vibration dampener subassembly being adhered to said backing plate element by at least one weld adhering said metal shim lamina .
2. The invention defined by claim 1 wherein said laminated vibration dampener subassembly is comprised of elastomeric lamina alternated with multiple metal shim laminae, said elastomeric lamina being adhered to said metal shim laminae, and said metallic shim laminae each being adhered to said backing plate element by at least one resistance weld.
3. The invention defined by claim 2 wherein one of said metal shim laminae is adhered directly to said backing plate element with no elastomeric lamina interposed therebetween.
4. The invention defined by claim 1 wherein said laminated vibration dampener subassembly is comprised of elastomeric lamina alternated with a top and a bottom metal shim lamina wherein a portion of said top metal shim lamina is cut away such that said top metal shim lamina does not completely overlie said bottom metal shim lamina, said elastomeric lamina being adhered to said top and bottom metal shim laminae, and said vibration dampener subassembly being affixed to said backing plate element by having only said bottom metal shim lamina resistance welded to said backing plate element.
5. The invention defined by claim 4 wherein one of said metal shim laminae is adhered directly to said backing plate element with no elastomeric lamina interposed therebetween.
6. A disc brake pad assembly for incorporation into a disc brake system, and comprising: a metallic backing plate element having a pair of principal mounting surfaces; a friction pad element adhered to one of said metallic backing plate element pair of principal mounting surfaces; and a laminated vibration dampener subassembly that is comprised of a metal shim lamina and an elastomeric lamina and that is adhered to the other of said metallic backing plate element pair of principal mounting surfaces, said laminated vibration dampener subassembly being adhered to said backing
10 plate element by brazing said metal shim lamina,
11
PCT/US1999/008495 1998-04-23 1999-04-22 Improved disc brake pad assembly WO1999054636A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU37503/99A AU3750399A (en) 1998-04-23 1999-04-22 Improved disc brake pad assembly

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US6490798A 1998-04-23 1998-04-23
US09/064,907 1998-04-23

Publications (1)

Publication Number Publication Date
WO1999054636A1 true WO1999054636A1 (en) 1999-10-28

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WO (1) WO1999054636A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015082429A1 (en) * 2013-12-05 2015-06-11 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Brake lining comprising a damping device for a disk brake, disk brake comprising such a brake lining, and method for optimizing a damping device of such a brake lining

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB929179A (en) * 1959-09-02 1963-06-19 Motor Industry Res Ass Improvements in or relating to disc brakes
DE1600155A1 (en) * 1967-01-20 1970-01-22 Teves Gmbh Alfred Brake pad holder for disc brakes
US3730302A (en) 1969-05-08 1973-05-01 T Ogawa Disc brake including vibration dampening means
US3918555A (en) 1974-01-22 1975-11-11 Girling Ltd Apparatus for locating a friction pad assembly to a support member
US4445594A (en) 1981-10-30 1984-05-01 General Motors Corporation Disc brake noise reduction
JPS6182028A (en) * 1984-08-20 1986-04-25 Honda Motor Co Ltd Friction pad member for disc brake apparatus
US4603760A (en) 1985-09-03 1986-08-05 General Motors Corporation Slotted insulator and disc brake assembly using same
JPH01317687A (en) * 1988-06-17 1989-12-22 Toyota Motor Corp Spot welding method for laminated steel plate
EP0385684A1 (en) * 1989-02-28 1990-09-05 KABUSHIKI KAISHA KOBE SEIKO SHO also known as Kobe Steel Ltd. Resistance weldable type vibration damping composite steel sheet
US5407034A (en) 1994-01-31 1995-04-18 Pre Finish Metals Incorporated Noise damped brake pad assembly
GB2291684A (en) * 1994-07-21 1996-01-31 Rover Group A disc brake asembly

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB929179A (en) * 1959-09-02 1963-06-19 Motor Industry Res Ass Improvements in or relating to disc brakes
DE1600155A1 (en) * 1967-01-20 1970-01-22 Teves Gmbh Alfred Brake pad holder for disc brakes
US3730302A (en) 1969-05-08 1973-05-01 T Ogawa Disc brake including vibration dampening means
US3918555A (en) 1974-01-22 1975-11-11 Girling Ltd Apparatus for locating a friction pad assembly to a support member
US4445594A (en) 1981-10-30 1984-05-01 General Motors Corporation Disc brake noise reduction
JPS6182028A (en) * 1984-08-20 1986-04-25 Honda Motor Co Ltd Friction pad member for disc brake apparatus
US4603760A (en) 1985-09-03 1986-08-05 General Motors Corporation Slotted insulator and disc brake assembly using same
JPH01317687A (en) * 1988-06-17 1989-12-22 Toyota Motor Corp Spot welding method for laminated steel plate
EP0385684A1 (en) * 1989-02-28 1990-09-05 KABUSHIKI KAISHA KOBE SEIKO SHO also known as Kobe Steel Ltd. Resistance weldable type vibration damping composite steel sheet
US5407034A (en) 1994-01-31 1995-04-18 Pre Finish Metals Incorporated Noise damped brake pad assembly
GB2291684A (en) * 1994-07-21 1996-01-31 Rover Group A disc brake asembly

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 010, no. 253 (M - 512) 29 August 1986 (1986-08-29) *
PATENT ABSTRACTS OF JAPAN vol. 014, no. 119 (M - 0945) 6 March 1990 (1990-03-06) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015082429A1 (en) * 2013-12-05 2015-06-11 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Brake lining comprising a damping device for a disk brake, disk brake comprising such a brake lining, and method for optimizing a damping device of such a brake lining
EP3077695B1 (en) 2013-12-05 2019-05-22 KNORR-BREMSE Systeme für Nutzfahrzeuge GmbH Brake lining comprising a damping device for a disk brake, disk brake comprising such a brake lining, and method for optimizing a damping device of such a brake lining

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Publication number Publication date
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