CN110195753B - Friction member and brake pad - Google Patents
Friction member and brake pad Download PDFInfo
- Publication number
- CN110195753B CN110195753B CN201910119883.0A CN201910119883A CN110195753B CN 110195753 B CN110195753 B CN 110195753B CN 201910119883 A CN201910119883 A CN 201910119883A CN 110195753 B CN110195753 B CN 110195753B
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- Prior art keywords
- friction member
- friction
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- zinc fibers
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- 239000000835 fiber Substances 0.000 claims abstract description 74
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 54
- 239000011701 zinc Substances 0.000 claims abstract description 54
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 54
- 239000003795 chemical substances by application Substances 0.000 claims description 21
- 239000000126 substance Substances 0.000 claims description 17
- 239000012744 reinforcing agent Substances 0.000 claims description 13
- 229910001369 Brass Inorganic materials 0.000 claims description 12
- 239000010951 brass Substances 0.000 claims description 12
- 239000003638 chemical reducing agent Substances 0.000 claims description 9
- 239000011230 binding agent Substances 0.000 claims description 8
- 239000000853 adhesive Substances 0.000 claims description 7
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 229910000640 Fe alloy Inorganic materials 0.000 claims description 3
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- 239000010936 titanium Substances 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- 238000005299 abrasion Methods 0.000 abstract description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 10
- 239000003607 modifier Substances 0.000 description 10
- 239000000203 mixture Substances 0.000 description 8
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 7
- 229910000423 chromium oxide Inorganic materials 0.000 description 7
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 7
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 230000003449 preventive effect Effects 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 239000011651 chromium Substances 0.000 description 5
- 229910002804 graphite Inorganic materials 0.000 description 5
- 239000010439 graphite Substances 0.000 description 5
- 229910010271 silicon carbide Inorganic materials 0.000 description 5
- 244000226021 Anacardium occidentale Species 0.000 description 4
- 229920006231 aramid fiber Polymers 0.000 description 4
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 4
- 239000000920 calcium hydroxide Substances 0.000 description 4
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 4
- 235000011116 calcium hydroxide Nutrition 0.000 description 4
- 235000020226 cashew nut Nutrition 0.000 description 4
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 description 4
- 239000002783 friction material Substances 0.000 description 4
- 239000005011 phenolic resin Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 229920002972 Acrylic fiber Polymers 0.000 description 1
- 239000005997 Calcium carbide Substances 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004640 Melamine resin Substances 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 229940007424 antimony trisulfide Drugs 0.000 description 1
- NVWBARWTDVQPJD-UHFFFAOYSA-N antimony(3+);trisulfide Chemical compound [S-2].[S-2].[S-2].[Sb+3].[Sb+3] NVWBARWTDVQPJD-UHFFFAOYSA-N 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000001336 glow discharge atomic emission spectroscopy Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 1
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- CLZWAWBPWVRRGI-UHFFFAOYSA-N tert-butyl 2-[2-[2-[2-[bis[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]amino]-5-bromophenoxy]ethoxy]-4-methyl-n-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]anilino]acetate Chemical compound CC1=CC=C(N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)C(OCCOC=2C(=CC=C(Br)C=2)N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)=C1 CLZWAWBPWVRRGI-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- 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
- F16D65/00—Parts or details
- F16D65/78—Features relating to cooling
- F16D65/84—Features relating to cooling for disc brakes
- F16D65/847—Features relating to cooling for disc brakes with open cooling system, e.g. cooled by air
-
- 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
- F16D69/02—Composition 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
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/02—Composition of linings ; Methods of manufacturing
- F16D69/027—Compositions based on metals or inorganic oxides
- F16D69/028—Compositions based on metals or inorganic oxides containing fibres
-
- 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
-
- 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
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0004—Materials; Production methods therefor metallic
- F16D2200/0026—Non-ferro
- F16D2200/003—Light metals, e.g. aluminium
-
- 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
- F16D2200/00—Materials; Production methods therefor
- F16D2200/006—Materials; Production methods therefor containing fibres or particles
-
- 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
- F16D2200/00—Materials; Production methods therefor
- F16D2200/006—Materials; Production methods therefor containing fibres or particles
- F16D2200/0073—Materials; Production methods therefor containing fibres or particles having lubricating properties
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Braking Arrangements (AREA)
Abstract
The invention provides a friction member and a brake pad having high abrasion resistance. A friction member having a friction surface that comes into contact with a rotating body, the friction member containing zinc fibers, the friction surface having an area of 150mm 2 Above and 600mm 2 The following.
Description
Technical Field
The present invention relates to a friction member and a brake pad.
Background
Patent document 1 discloses a friction material composition for a disc brake pad used in an automobile or the like. The friction material composition described in patent document 1 contains one or more of copper fibers, zinc fibers, and brass fibers. The friction material composition suppresses abnormal noise generated during braking. On the other hand, it is known to use brass fibers as a friction material composition for a bicycle disc brake pad.
Documents of the prior art
Patent literature
Patent document 1: japanese patent laid-open No. 59-64687.
Disclosure of Invention
The invention aims to provide a friction member and a brake pad with high abrasion resistance.
According to the first aspect of the present invention, the friction member has a friction surface that contacts the rotating body, and the friction member contains zinc fibers, and the area of the friction surface is 150mm 2 Above and 600mm 2 The following.
According to the friction member of the first aspect, the abrasion resistance can be improved as compared with a friction member mainly containing brass fibers as an abrasive.
In a friction member according to a second aspect of the first aspect, a first dimension of the friction surface in the first direction parallel to the friction surface is 15mm or more and 30mm or less.
According to the friction member of the second aspect, the first dimension is set to 15mm or more, whereby the braking performance can be maintained, and the first dimension is set to 30mm or less, whereby the friction member can be configured compactly.
In the friction member according to a third aspect of the second aspect, a second dimension of the friction surface in a second direction parallel to the friction surface and perpendicular to the first direction is 10mm or more and 20mm or less.
According to the friction member of the third aspect, the second dimension is set to 10mm or more, whereby the braking performance can be maintained, and the second dimension is set to 20mm or less, whereby the friction member can be configured compactly.
A friction member according to a fourth aspect of the present invention has a friction surface that contacts a rotating body, and the friction member includes zinc fibers, a first dimension of the friction surface in a first direction parallel to the friction surface is 15mm or more and 30mm or less, and a second dimension of the friction surface in a second direction parallel to the friction surface and perpendicular to the first direction is 10mm or more and 20mm or less.
According to the friction member of the fourth aspect, the braking performance can be maintained by setting the first dimension to 15mm or more and the second dimension to 10mm or more, and the friction member can be configured compactly by setting the first dimension to 30mm or less and the second dimension to 20mm or less.
In the friction member according to a fifth aspect of the third or fourth aspects, the second dimension is smaller than the first dimension.
According to the friction member of the fifth aspect, by increasing the first dimension in the rotation direction of the rotating body, it is possible to appropriately contact with the rotating body.
In the friction member according to a sixth aspect of any one of the second to fifth aspects, the friction member is curved in the first direction so as to form irregularities.
According to the friction member of the sixth aspect, the friction surface can be arranged along the rotation direction of the rotating body, and braking performance can be improved.
In the friction member according to a seventh aspect of any one of the first to sixth aspects, a dimension of the friction member in a third direction perpendicular to the friction surface is 1.5mm or more and 5mm or less.
According to the friction member of the seventh aspect, the third dimension is set to 1.5mm or more, whereby strength can be ensured, and the third dimension is set to 5mm or less, whereby the friction member can be configured compactly.
The friction member according to an eighth aspect of any one of the first to seventh aspects, further comprising a binder.
According to the friction member of the eighth aspect, appropriate strength can be obtained.
The friction member according to a ninth aspect of any one of the first to eighth aspects, further comprising a friction modifier.
According to the friction member of the ninth aspect, the frictional force with respect to the rotating body can be appropriately adjusted.
The friction member according to a tenth aspect of any one of the first to ninth aspects further comprises a grinding agent.
According to the friction member of the tenth aspect, braking performance can be improved.
The friction member according to an eleventh aspect of any one of the first to tenth aspects further comprises a reinforcing agent.
According to the friction member of the eleventh aspect, the shape can be appropriately maintained.
The friction member according to a twelfth aspect of any one of the first to eleventh aspects, further comprising a volume adjuster.
According to the friction member of the twelfth aspect, an appropriate volume can be obtained.
The friction member according to a thirteenth aspect of any of the first to twelfth aspects further comprises a rust preventive adhesion agent.
According to the friction member of the thirteenth aspect, the adhesion of rust can be suppressed.
The friction member according to a fourteenth aspect of any one of the first to thirteenth aspects, further comprising a sliding contact noise reducing agent.
According to the friction member of the fourteenth aspect, it is possible to reduce the sound generated in the sliding of the friction member with the rotating body.
In the friction member according to a fifteenth aspect of any one of the first to fourteenth aspects, the zinc fibers have an average diameter of 40 μm or more and 140 μm or less.
According to the friction member of the fifteenth aspect, an appropriate frictional force can be generated between the rotating body and the friction member.
In a sixteenth aspect of the friction member according to any one of the first to fifteenth aspects, an average length of the zinc fibers is 0.8mm or more and 2.8mm or less.
According to the friction member of the sixteenth aspect, by setting the average length of the zinc fibers to 0.8mm or more, an appropriate frictional force can be generated between the rotating body and the friction member, and by setting the average length of the zinc fibers to 2.8mm or less, formability can be improved.
In the friction member according to a seventeenth aspect of any one of the first to sixteenth aspects, a mass ratio of the zinc fibers in the friction member is 15% or more and 40% or less.
According to the friction member of the seventeenth aspect, an appropriate frictional force can be generated between the rotating body and the friction member.
In the friction member according to an eighteenth aspect of any one of the first to seventeenth aspects, a volume ratio of the zinc fibers in the friction member is 5% or more and 30% or less.
According to the friction member of the eighteenth aspect, an appropriate frictional force can be generated between the rotating body and the friction member.
A brake pad according to a nineteenth aspect includes the friction member according to any one of the first to eighteenth aspects and a backing plate that supports the friction member.
According to the brake pad of the nineteenth aspect, the brake pad can be easily attached to a brake caliper of a bicycle.
In the brake pad according to a twentieth aspect of the nineteenth to 9, the friction member is bonded to the backing plate.
According to the brake pad of the twentieth aspect, the friction member can be easily bonded to the backing plate.
In the brake pad according to the nineteenth or twentieth aspect of the present invention, the backing plate is formed of any one of an iron alloy, titanium, a titanium alloy, and an aluminum alloy.
According to the brake pad of the twenty-first aspect, high rigidity can be obtained.
In a twenty-second aspect of the brake pad according to any one of the nineteenth to twenty-first aspects, the backing plate includes a support portion that supports the friction member, and a heat radiating portion having a heat radiating structure.
According to the brake pad of the twenty-second aspect, heat generation during braking can be suppressed.
In the brake pad according to a twenty-third aspect of the twenty-second aspect, the heat releasing structure includes a heat sink.
According to the brake pad of the twenty-third aspect, since the heat releasing structure is simple, it can be easily manufactured.
Effects of the invention
The friction member and the brake pad of the present invention can improve wear resistance.
Drawings
FIG. 1 is a plan view of a brake pad;
FIG. 2 is a side view of the brake plate;
FIG. 3 is a perspective view of a modified example of the brake pad;
fig. 4 is a perspective view of a modified example of the brake pad when viewed from a different angle from that of fig. 3.
Detailed Description
A brake pad 10 according to an embodiment of the present invention will be described with reference to fig. 1 and 2.
The brake pad 10 is mounted on a human powered vehicle, for example. Here, the human-powered vehicle refers to a vehicle in which at least a part of motive power for traveling is human power, and includes a vehicle in which human power is assisted by electric power. Vehicles that use only motive power other than human power are not included in human-powered vehicles. In particular, vehicles in which only an internal combustion engine is used as a prime mover are not included in human-powered vehicles. Generally, in a human-powered vehicle, a small and light vehicle is assumed, and a vehicle that does not require a driving license is assumed to be driven on a road. The manpower drive car includes: bicycles propelled by manpower only, bicycles (e-bike) using electric energy to assist manpower, unicycles, bicycles, and tricycles propelled by electric energy only. The brake pads 10 brake a rotating body that is attached to a rotating shaft of a wheel and rotates in synchronization with the wheel. One example of a rotating body includes a disc brake rotor. The brake pad 10 has a frictional surface 12A (see below), and the frictional surface 12A is in contact with a braking surface that is at least one surface intersecting the rotational center axis of the rotating body. The friction surface 12A of the brake pad 10 contacts the braking surface of the rotating body, and the brake pad 10 reduces the rotational speed of the rotating body. The "rotating body" in the embodiment refers to a disc brake pad (not shown).
As shown in FIG. 1, the brake pad 10 includes a friction member 12 and a backing plate 14 that supports the friction member 12. In the brake pad 10, the friction member 12 is bonded to the backing plate 14. For example, the friction member 12 is bonded to the back plate 14 by thermocompression bonding. The friction member 12 is bonded to the back plate 14 by an adhesive.
The back plate 14 includes a support portion 16 that supports the friction member 12, and a coupling portion 18 that extends from the support portion 16 and is coupled to the brake caliper. The support portion 16 has a first surface 16A facing the rotating body and a second surface 16B on the opposite side of the first surface 16A in a state where the back plate 14 is attached to a caliper of a human-powered vehicle. The friction member 12 is adhered to the first face 16A. Preferably, the first surface 16A is parallel to a friction surface 12A described later. The coupling portion 18 has a through hole 18A. The brake pad 10 is attached to the caliper by inserting a pin of the caliper (not shown) through the through hole 18A. The back plate 14 is formed of any one of iron alloy, titanium alloy, and aluminum alloy. Preferably, in the support portion 16 of the back plate 14, a dimension L1 in a direction perpendicular to the first surface 16A is smaller than a dimension L2 of the friction member 12 in a third direction D3 perpendicular to the friction surface 12A of the friction member 12 (refer to fig. 2). Preferably, in the friction member 12, a dimension L2 of the friction member 12 in a third direction D3 perpendicular to the friction surface 12A is 1.5mm or more and 5mm or less.
Next, the friction member 12 will be explained. The friction member 12 has a friction surface 12A in contact with the rotating body, and includes zinc fibers. Preferably, the friction face 12A has an area of 150mm 2 Above and 600mm 2 The following. More preferably, the friction face 12A has an area of 250mm 2 Above and 500mm 2 The following. Preferably, the first dimension L3 of the friction surface 12A in the first direction D1 parallel to the friction surface 12A is 15mm or more and 30mm or less. Preferably, the second dimension L4 of the friction surface 12A in the second direction D2 parallel to the friction surface 12A and perpendicular to the first direction D1 is 10mm to 20 mm. Also, in the friction member 12, it is preferable that the second dimension L4 be smaller than the first dimension L3.
In a state where the back plate 14 is attached to a brake caliper of a human-powered vehicle, the friction member 12 is arranged such that the second direction D2 of the friction member 12 is along a radial direction perpendicular to the rotation center axis of the rotating body. Thus, the first direction D1, which is the longitudinal direction of the friction member 12, can be made substantially along the rotation direction of the rotating body. Also, it is preferable that the friction member 12 is bent in the first direction D1 in such a manner as to form a concavity and a convexity. Thereby, the friction member 12 is further along the rotation direction of the rotating body.
The friction member 12 further includes a tapered surface 12B. The tapered surface 12B is provided continuously with the frictional surface 12A. The tapered surface 12B is inclined from the frictional surface 12A toward the support portion 16 of the back plate 14. Preferably, the tapered surface 12B extends from an end edge opposite to the connection portion 18 in the second direction D2 on the friction surface 12A.
As described above, the friction member 12 contains zinc fibers. The zinc fibers are abrasive. Preferably, the zinc fibers have an average diameter of 40 μm or more and 140 μm or less. More preferably, the average diameter of the zinc fibers is 50 μm or more and 130 μm or less. The average diameter here means the median diameter. The average diameters of the respective fibers shown later are all the median diameters.
Preferably, the zinc fibers have an average length of 0.8mm or more and 2.8mm or less. More preferably, the average length of the zinc fibers is 1.0mm or more and 2.6mm or less. The length of the zinc fiber means a length when the zinc fiber is formed in a straight line, and when the zinc fiber is bent, it means a length when the bent zinc fiber is stretched in a straight line. The average length represents the arithmetic mean of the lengths.
Preferably, the mass ratio of the zinc fibers in the friction member 12 is 15% or more and 40% or less. More preferably, the mass ratio of the zinc fibers in the friction member 12 is 18% or more and 38% or less. In addition, the volume ratio of the zinc fibers in the friction member 12 is preferably 5% or more and 30% or less. More preferably, the volume ratio of the zinc fibers in the friction member 12 is 7% or more and 28% or less.
Preferably, the friction member 12 contains at least one of the following materials in addition to the zinc fibers. The friction member 12 further includes an adhesive. The adhesive bonds the materials making up the friction member 12. The binder is a resin having adhesiveness and heat resistance. As the binder, phenol resin, melamine resin, and epoxy resin can be cited. One or more of these substances are selected and used as a binder. In order to maintain the adhesiveness (setting property) of the material constituting the friction member 12, the mass ratio of the binder in the friction member 12 is preferably 5% to 15%. For the same reason, the volume ratio of the binder in the friction member 12 is preferably 15% or more and 25% or less.
The friction member 12 also contains a friction modifier. The friction modifier adjusts the coefficient of dynamic friction between the friction member 12 and the rotating body. The friction modifier adjusts the frictional force of the friction member 12 with respect to the rotating body. As the friction modifier, graphite, coke, molybdenum disulfide and antimony trisulfide can be cited. One or more of these substances are selected and used as a friction modifier. In order to moderate the sliding property of the friction member 12 with respect to the rotating body, the mass ratio of the friction modifier in the friction member 12 is preferably 2% or more and 7% or less. For the same reason, the volume ratio of the friction modifier in the friction member 12 is preferably 3% or more and 10% or less.
The friction member 12 also contains an abrasive. The abrasive enhances braking by contact of the friction member 12 with the rotating bodyAnd (4) sex. The vickers hardness of the friction member 12 is higher than that of the rotating body. Examples of the grinding agent include silicon carbide, aluminum oxide, and chromium oxide (Cr) 2 O 3 ). One or more of these substances are selected for use as a grinding agent. For bicycles, silicon carbide and chromium oxide (Cr) 2 O 3 ) Is suitable for use. In order to moderate the braking performance of the friction member 12, the mass ratio of the grinding agent in the friction member 12 is preferably 10% or more and 30% or less. For the same reason, the volume ratio of the grinding agent in the friction member 12 is preferably 10% or more and 30% or less. Of the above-listed grinding agents, the friction member 12 preferably contains silicon carbide. The average diameter of the silicon carbide is preferably 1 μm or more and 20 μm or less. In addition, preferably, the friction member 12 contains chromium oxide (Cr) 2 O 3 ). The average diameter of the chromium oxide is preferably 0.1 μm or more and 5 μm or less. More preferably, the friction member 12 includes both silicon carbide and chromium oxide.
The friction member 12 also contains a reinforcing agent. The reinforcing agent properly holds the friction member 12. The high shape-retaining property means that the friction member 12 is less deformed in a state where the friction member 12 is in contact with the rotating body. The reinforcing agent is preferably a fibrous substance. As the reinforcing agent, aramid fiber, acrylic fiber, and carbon fiber are cited. One or more of these substances are selected for use as a reinforcing agent. In order to achieve both the shape retention property and the braking property of the friction member 12, the mass ratio of the reinforcing agent in the friction member 12 is preferably 3% or more and 7% or less. For the same reason, the volume ratio of the reinforcing agent in the friction member 12 is preferably 5% or more and 15% or less. The average diameter of the fibers used as the reinforcing agent is preferably 1 μm or more and 10 μm or less. The average length of the fibers is preferably 0.5mm to 3 mm.
The friction member 12 further contains a volume adjuster. The volume adjuster adjusts the volume of the friction member 12. The volume of the friction member 12 and the size of the friction surface 12A can be adjusted by adding the volume adjuster. As the volume adjuster, barium sulfate, calcium carbide, and magnesium carbonate can be cited. One or more of these substances are selected for use as volume modifiers. In order to achieve both the downsizing and braking performance of the friction member 12, the mass ratio of the volume adjuster in the friction member 12 is preferably 10% or more and 50% or less. For the same reason, the volume ratio of the volume adjuster in the friction member 12 is preferably 10% or more and 50% or less.
The friction member 12 further contains a rust preventive adhesive agent. The rust-preventive adhesive suppresses the transfer of a rust-causing material to the rotary body. The rust-causing material is a material that causes the rotating body to rust. Examples of the rust preventive adhesive agent include alkaline substances such as slaked lime (calcium hydroxide), magnesium hydroxide, magnesium oxide, and calcium oxide. One or more of these substances are selected for use as the rust inhibitive adhesion agent. In order to improve both the braking performance and the rust prevention adhesion of the friction member 12, the mass ratio of the rust prevention adhesion agent in the friction member 12 is preferably 0.1% or more and 2% or less. For the same reason, the volume ratio of the rust preventive agent in the friction member 12 is preferably 0.1% or more and 2% or less.
The friction member 12 further contains a sliding contact sound reducing agent. The sliding contact noise reducing agent reduces abnormal noise in the contact of the friction member 12 and the rotating body. In particular, the sliding contact sound reducing agent reduces high-frequency sound. Examples of the sliding contact noise reducing agent include cashew nut shell oil friction powder and potassium titanate fiber. One or more of these substances are selected for use as a sliding contact sound reducing agent. In order to achieve both the braking performance and the noise reduction of the friction member 12, the mass ratio of the sliding contact noise reducing agent in the friction member 12 is preferably 10% or more and 20% or less. For the same reason, the volume ratio of the sliding contact sound reducing agent in the friction member 12 is preferably 10% or more and 30% or less.
< example >
Next, an example of the friction member 12 will be described in comparison with a reference example.
Table 1 shows the ingredients of the examples and reference examples.
The friction member 12 of the example includes Zinc fibers (Zinc fibers) as a friction agent, phenol resin (phenol resin) as a binder, graphite (graphite) as a friction modifier, silicon carbide (SiC) and chromium oxide (Cr) 2 O 3 ) As abrasive, aramid fiber (aramid fiber) is included as reinforcementAgent containing barium sulfate (BaSO) 4 ) As a volume regulator, calcium hydroxide (Ca (OH)) 2 ) As the rust preventive adhesion agent, Cashew nut shell oil friction powder (Cashew dust) and potassium titanate fibers (potassium titanate fibers) were contained as sliding contact sound preventive agents. The mass ratio and volume ratio of these substances with respect to the entire mass of the friction member 12 are shown in table 1.
The composition of the friction member of the reference example contained the same components as those of the examples except that Brass fibers (Brass fibers) were contained as a friction agent instead of the zinc fibers of the examples (see table 1).
[ TABLE 1 ]
The shape characteristics of the various substances used in the examples and reference examples are as follows. The zinc fibers had an average diameter of 90 μm and an average length of 1.8mm (length in the stretched state). The brass fibers have an average diameter of 80 μm and an average length of 1mm to 2 mm. The average diameter of the phenolic resin (when mixed) is 10 to 50 μm. The graphite is flake-shaped, and the average diameter of the graphite is 0.1mm to 0.2 mm. The average diameter of the silicon carbide (SiC) was 10 μm. Chromium oxide (Cr) 2 O 3 ) Has an average diameter of 1 to 2 μm. The aramid fiber has an average diameter of 5 [ mu ] m and an average length of 1mm to 2 mm. The average diameter of the barium sulfate was 10 μm. The calcium hydroxide has an average diameter of 10 to 50 μm. The average diameter of the cashew nut shell oil friction powder is 0.5 mm. The potassium titanate fiber is plate-shaped, and has an average length of 13 μm on the short side and an average length of 65 μm or less on the long side.
The friction members 12 of the examples and the reference examples were formed under the following conditions. The above-mentioned substances constituting the friction member 12 are mixed at room temperature, and the mixture is charged into a mold to be formed into a predetermined shape. Then, the mixture is subjected to hot press molding, followed by heat treatment for a predetermined time. In the above operation, the friction member 12 is formed.
Next, the effects of the embodiment are shown. The examples and the reference examples were compared in terms of the amount of friction, the coefficient of dynamic friction, the amount of friction of the rotating body, and the thickness of the mobile adhesion layer formed in the rotating body. The mobile adhesion layer is a layer formed of a substance that moves from the friction member 12 to the rotating body when the friction member 12 is brought into contact with the rotating body.
The abrasion loss and the dynamic friction coefficient were measured under the following conditions. The friction area of the friction member 12 of the examples and the reference examples was 382mm 2 . As the rotator, shimato (RT99S) was used. The rotational speed was set to 155rpm (corresponding to 20 km/hour), the wire connection force of the rotary body was set to 607N, and a hard pull test was performed for 30 minutes. The hard pull test is carried out in a high temperature environment. Specifically, the hard pull test was performed at a temperature of about 200 ℃, 300 ℃, 400 ℃ and 500 ℃.
As a result of the above tests, the friction member 12 of the example had a smaller amount of wear than the friction member of the reference example at any of the above temperatures. The wear amount of the rotor generated by the braking of the friction member 12 of the example was less than that of the reference example at each temperature other than about 300 ℃ (hereinafter referred to as rotor wear amount reduction effect). In addition, at any of the above temperatures, the dynamic friction coefficient of the friction member 12 of the example in the above test was higher than that of the friction member of the reference example.
While the thickness of the mobile adhesion layer formed by the friction member of the reference example moving toward the rotating body is thinner as the temperature is higher, the thickness of the mobile adhesion layer formed in the rotating body of the friction member 12 of the example is thicker as the temperature is higher. Further, the friction member 12 of the example formed the mobile adhesion layer in the rotating body with a smaller thickness than that of the friction member of the reference example at each temperature. The thickness of the mobile adhesion layer formed on the rotator was measured by a glow discharge emission analyzer (GD-OES).
(modification example)
The description of the above embodiments is illustrative of the manner in which the friction member and brake pad according to the present invention may be employed and is not intended to be limiting. The friction member and the brake pad according to the present invention can be obtained by combining at least 2 modifications of the above-described embodiments shown below, for example. In the following modifications, the same reference numerals as in the embodiment are given to the common portions to the embodiment, and the description thereof is omitted.
An example of the brake pad 20 having the heat release structure will be described with reference to fig. 3 and 4. The brake plate 20 includes a friction member 22 and a backing plate 24. The friction member 22 has the structure and composition of the friction member 12 according to the embodiment. The back plate 24 includes a support portion 26 supporting the friction member 22 and a heat radiating portion 28 having a heat radiating structure.
The support portion 26 and the heat radiating portion 28 are provided in the main body 30. The main body 30 has a first surface 30A facing the rotating body and a second surface 30B on the opposite side of the first surface 30A in a state where the back plate 24 is attached to a caliper of a human-powered vehicle. In the support portion 26 of the main body 30, the friction member 22 is bonded to the first surface 30A. In the main body 30, the heat radiating portion 28 is provided on the second surface 30B so as not to be located on the opposite side of the friction member 22. In other words, the heat radiating portion 28 is provided on the main body 30 so as not to face the friction member 22 via the main body 30. The heat radiating portion 28 may be formed integrally with the body 30 or may be formed separately. In the present embodiment, the heat radiating portion 28 is formed integrally with the main body 30.
As described above, the heat radiating portion 28 has a heat radiating structure. The heat-releasing structure includes a heat sink 32. A plurality of fins 32 are provided on the second surface 30B of the main body 30. The plurality of fins 32 are provided so as to extend from the second surface 30B to the opposite side of the friction member 22. The heat sink 32 may be formed integrally with the body 30 or may be formed separately. In the present embodiment, the heat sink 32 is formed integrally with the main body 30. When the heat sink 32 is formed separately, for example, a hole for inserting the heat sink 32 may be provided in the body 30, and the heat sink 32 may be fixed to the hole by press-fitting, bonding, or the like. Further, in the main body 30, a through hole 30C for passing a pin of the caliper is provided between the support portion 26 and the heat radiating portion 28.
The friction member 12 may have the following structure. The friction member 12 has a friction surface 12A that contacts the rotating body, and that contains zinc fibers, a first dimension L3 of the friction surface 12A in a first direction D1 parallel to the friction surface 12A is 15mm or more and 30mm or less, and a second dimension L4 of the friction surface 12A in a second direction D2 parallel to the friction surface 12A and perpendicular to the first direction D1 is 10mm or more and 20mm or less.
In the above embodiment, the frictional surface 12A may be divided into a plurality of parts. For example, the friction surface 12A is divided into 2. A gap is formed between 2 friction surfaces constituting the friction surface 12A. In this case, the friction area is calculated from the sum of the areas of 2 friction surfaces. The first dimension L3 and the second dimension L4 of the friction member 12 are set with respect to the outer shape of the friction surfaces when viewed as a continuous surface.
In the above embodiment, the friction member 12 does not contain a friction substance other than zinc fibers, but may contain a friction substance other than zinc fibers. For example, the friction member 12 may include brass fibers in addition to zinc fibers. In this case, the zinc fibers are preferably more numerous than the brass fibers in terms of volume ratio.
The man-powered vehicle to which the brake pads 10 and 20 according to the embodiment are attached is not limited. The manpower-driven bicycle comprises a road bicycle, a mountain bicycle, a cross-country bicycle, a city bicycle, a freight bicycle, a reclining bicycle and a scooter.
Description of the symbols:
a first direction D1;
a second direction D2;
d3 third direction;
l3 first size;
l4 second size;
10. 20, a brake pad;
12. 22 a friction member;
12A friction face;
14. 24 a back plate;
26 a support part;
28 a heat radiation part;
32 heat sink fins.
Claims (19)
1. A friction member having a friction surface which contacts a rotating body,
the friction member includes zinc fibers as a friction agent and does not contain a friction agent other than the zinc fibers; or the friction member comprises zinc fibers and brass fibers as a friction agent, wherein the volume ratio of the zinc fibers is larger than that of the brass fibers,
the area of the friction surface is 150mm 2 Above and 600mm 2 In the following, the following description is given,
the mass ratio of the zinc fibers in the friction member is 15% to 40%,
an average length of the zinc fibers is 0.8mm or more and 2.8mm or less, wherein the zinc fibers are bent, and the average length of the bent zinc fibers when stretched into a straight line is 0.8mm or more and 2.8mm or less,
the zinc fibers have an average diameter of 40 to 140 [ mu ] m,
the friction member further comprises a reinforcing agent, and the reinforcing agent is a fibrous substance.
2. The friction member according to claim 1,
a first dimension of the friction surface in a first direction parallel to the friction surface is 15mm or more and 30mm or less.
3. The friction member according to claim 2,
a second dimension of the friction surface in a second direction parallel to the friction surface and perpendicular to the first direction is 10mm or more and 20mm or less.
4. A friction member having a friction surface which contacts a rotating body,
the friction member contains zinc fibers as a friction agent and does not contain a friction agent other than the zinc fibers; alternatively, the friction member comprises zinc fibers and brass fibers as a friction agent, wherein the volume ratio of the zinc fibers is larger than that of the brass fibers,
a first dimension of the friction surface in a first direction parallel to the friction surface is 15mm or more and 30mm or less,
a second dimension of the friction surface in a second direction parallel to the friction surface and perpendicular to the first direction is 10mm or more and 20mm or less,
the mass ratio of the zinc fibers in the friction member is 15% to 40%,
an average length of the zinc fibers is 0.8mm or more and 2.8mm or less, wherein the zinc fibers are bent, and the average length of the bent zinc fibers when stretched into a straight line is 0.8mm or more and 2.8mm or less,
the zinc fibers have an average diameter of 40 to 140 [ mu ] m,
the friction member further comprises a reinforcing agent, and the reinforcing agent is a fibrous substance.
5. The friction member according to claim 3 or 4,
the second size is smaller than the first size.
6. The friction member according to any one of claims 2 to 5,
the friction member is curved in the first direction so as to form a concavity and a convexity.
7. A friction member according to any one of claims 1 to 6,
the dimension of the friction member in a third direction perpendicular to the friction surface is 1.5mm or more and 5mm or less.
8. The friction member according to any one of claims 1 to 7,
also includes a binder.
9. The friction member according to any one of claims 1 to 8,
also comprises a friction regulator.
10. The friction member according to any one of claims 1 to 9,
also contains a grinding agent.
11. A friction member according to any one of claims 1 to 10,
also comprises a volume regulator.
12. The friction member according to any one of claims 1 to 11,
also comprises an antirust adhesive.
13. The friction member according to any one of claims 1 to 12,
further comprises a sliding contact sound reducing agent.
14. The friction member according to any one of claims 1 to 13,
the volume ratio of the zinc fibers in the friction member is 5% or more and 30% or less.
15. A brake pad, comprising:
the friction member according to any one of claims 1 to 14; and
a back plate supporting the friction member.
16. The brake pad of claim 15,
the friction member is bonded to the back plate.
17. The brake pad of claim 15 or 16,
the back plate is formed of any one of an iron alloy, titanium, a titanium alloy, and an aluminum alloy.
18. The brake pad of any one of claims 15 to 17,
the back plate includes a support portion supporting the friction member, and a heat radiating portion having a heat radiating structure.
19. The brake pad of claim 18,
the heat releasing structure includes a heat sink.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018-033756 | 2018-02-27 | ||
| JP2018033756A JP7164308B2 (en) | 2018-02-27 | 2018-02-27 | Friction members and brake pads |
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| Publication Number | Publication Date |
|---|---|
| CN110195753A CN110195753A (en) | 2019-09-03 |
| CN110195753B true CN110195753B (en) | 2022-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910119883.0A Active CN110195753B (en) | 2018-02-27 | 2019-02-18 | Friction member and brake pad |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP7164308B2 (en) |
| CN (1) | CN110195753B (en) |
| DE (1) | DE102019104237A1 (en) |
| TW (1) | TWI826411B (en) |
Family Cites Families (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5964687A (en) * | 1982-10-05 | 1984-04-12 | Hitachi Chem Co Ltd | Friction material composition |
| JPH085971B2 (en) * | 1988-07-01 | 1996-01-24 | アイシン化工株式会社 | Disc brake pad manufacturing method |
| JPH0971768A (en) * | 1995-09-07 | 1997-03-18 | Aisin Chem Co Ltd | Friction material |
| JP2001107026A (en) * | 1999-10-12 | 2001-04-17 | Hitachi Chem Co Ltd | Friction material composition and friction material using this |
| JP4430468B2 (en) * | 2004-07-05 | 2010-03-10 | 東海カーボン株式会社 | Copper-based sintered friction material |
| US20060151268A1 (en) * | 2005-01-12 | 2006-07-13 | Sunil Kesavan | Copper-free non-asbestos organic friction material |
| JP2007092929A (en) * | 2005-09-29 | 2007-04-12 | Shimano Inc | Disc brake pad for bicycle |
| US7784593B2 (en) * | 2006-04-04 | 2010-08-31 | Shimano, Inc. | Bicycle disk brake pad with a titanium backing plate |
| EP2308921A1 (en) * | 2009-10-09 | 2011-04-13 | Rockwool International A/S | Friction material with reduced noise, vibration and harshness generation, and process for the preparation thereof |
| US8550220B2 (en) * | 2010-07-01 | 2013-10-08 | Shimano Inc. | Bicycle brake pad |
| JP5964687B2 (en) | 2012-08-02 | 2016-08-03 | 株式会社キーエンス | Optical sensor |
| ITTO20120713A1 (en) * | 2012-08-07 | 2014-02-08 | Itt Italia Srl | FRICTION MATERIAL |
| EP2977637B1 (en) * | 2013-03-22 | 2020-03-11 | Nisshinbo Brake Inc. | Friction material |
| GB2523090B (en) * | 2014-02-12 | 2018-01-10 | Talonbrake Ind Co Ltd | Heat-dissipating brake lining |
| CN103836096B (en) * | 2014-03-20 | 2018-03-13 | 唐泽交通器材(泰州)有限公司 | A kind of bicycle lining |
| CN203743270U (en) * | 2014-03-20 | 2014-07-30 | 唐泽交通器材(泰州)有限公司 | Bicycle brake pad |
| CN104946201A (en) * | 2014-03-31 | 2015-09-30 | 比亚迪股份有限公司 | Friction material, brake pad made of friction material, preparation method of brake pad, and vehicle |
| DE102015017208B3 (en) * | 2015-02-24 | 2021-07-01 | Shimano Inc. | DISC CALIPER |
| JP6592976B2 (en) * | 2015-06-10 | 2019-10-23 | 日立化成株式会社 | Friction material composition, friction material using friction material composition, and friction member |
| JP6764216B2 (en) * | 2015-07-22 | 2020-09-30 | 日清紡ブレーキ株式会社 | Friction material |
| ITUB20156084A1 (en) * | 2015-12-02 | 2017-06-02 | Campagnolo Srl | Pad for bicycle disc brake and disc brake including this pad |
| CN106763367B (en) * | 2017-02-28 | 2018-11-16 | 佛山佳牧乐科技有限公司 | Brake block friction material, brake block and brake piece preparation method |
-
2018
- 2018-02-27 JP JP2018033756A patent/JP7164308B2/en active Active
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2019
- 2019-01-17 TW TW108101751A patent/TWI826411B/en active
- 2019-02-18 CN CN201910119883.0A patent/CN110195753B/en active Active
- 2019-02-20 DE DE102019104237.2A patent/DE102019104237A1/en active Pending
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| DE102019104237A1 (en) | 2019-08-29 |
| TW201936729A (en) | 2019-09-16 |
| CN110195753A (en) | 2019-09-03 |
| TWI826411B (en) | 2023-12-21 |
| JP2019148304A (en) | 2019-09-05 |
| JP7164308B2 (en) | 2022-11-01 |
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