WO2020021645A1 - Plaque arrière, plaquette de frein à disque et ensemble compas - Google Patents

Plaque arrière, plaquette de frein à disque et ensemble compas Download PDF

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Publication number
WO2020021645A1
WO2020021645A1 PCT/JP2018/027776 JP2018027776W WO2020021645A1 WO 2020021645 A1 WO2020021645 A1 WO 2020021645A1 JP 2018027776 W JP2018027776 W JP 2018027776W WO 2020021645 A1 WO2020021645 A1 WO 2020021645A1
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WO
WIPO (PCT)
Prior art keywords
back plate
disc brake
brake pad
resin
friction material
Prior art date
Application number
PCT/JP2018/027776
Other languages
English (en)
Japanese (ja)
Inventor
一 豊田
泰啓 原
良尚 高橋
Original Assignee
日立化成株式会社
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 日立化成株式会社 filed Critical 日立化成株式会社
Priority to PCT/JP2018/027776 priority Critical patent/WO2020021645A1/fr
Priority to JP2020531885A priority patent/JP7226448B2/ja
Publication of WO2020021645A1 publication Critical patent/WO2020021645A1/fr

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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
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/02—Composition of linings ; Methods of manufacturing
    • F16D69/025—Compositions based on an organic binder
    • F16D69/026—Compositions based on an organic binder 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
    • 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
    • F16D2200/00—Materials; Production methods therefor
    • F16D2200/0004—Materials; Production methods therefor metallic
    • 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

Definitions

  • the present invention relates to a back plate, a disc brake pad, and a caliper assembly.
  • FIGS. 1A and 1B show an example of a disc brake pad as a friction member for braking attached to a motorcycle or a four-wheeled vehicle.
  • FIG. 1A is a top view of the disc brake pad
  • FIG. 1B is an example of a cross-sectional view taken along line AA in FIG. 1A.
  • the disc brake pad is composed of a back plate 1 and a friction material 2, and the friction material 2 is directly fixed to one surface of the back plate 1 (here, the upper surface of the back plate 1).
  • the friction material 2 is made of, for example, a so-called resin mold material including a binder, an organic filler, an inorganic filler, and a fiber base material.
  • a preform of a friction material composed of a binder, an organic filler, an inorganic filler, and a fiber base material is preliminarily superimposed on one surface of the back plate 1 and then hot-pressed to form an integrated body. It is manufactured by applying a surface treatment after being fixed to the surface.
  • FIG. 1C is another example of a cross-sectional view taken along line AA in FIG.
  • the disk brake pad shown in FIG. 1C includes a back plate 1, a friction material 2, and an intermediate layer 3, and is provided on one surface of the back plate 1 (the upper surface of the back plate 1) via the intermediate layer 3.
  • the friction material 2 is fixed.
  • the disc brake pad is formed by laminating a preform of a friction material and an intermediate layer composed of a binder, an organic filler, an inorganic filler, and a fiber base material on one surface of the back plate 1 in advance, and hot pressing. It is manufactured by performing surface processing after being fixed integrally.
  • the present inventors have been studying to change the back plate from a conventional steel plate to a lighter material such as aluminum or resin in order to reduce the weight of the disc brake pad. It has been found that the lightweight material has insufficient durability as compared with the conventional steel back plate. In particular, it has been found that the torque receiving portion of the back plate, which plays a role of receiving a force that tends to rotate with the rotation of the rotor during braking, is likely to be deformed, and is further susceptible to wear due to rubbing during braking.
  • the present inventors have conducted intensive research to solve the above-described problems, and as a result, by improving the durability of a torque receiving portion that plays a role of receiving a force that tries to rotate with the rotor during braking, the back plate is formed. It has been found that the durability of the back plate is improved even when the weight is reduced, and the present invention has been completed. That is, the present invention relates to the following [1] to [6].
  • a back plate for a disc brake wherein a material of a body portion of the back plate contains a material having a specific gravity lower than steel, and a metal plate is disposed on at least a part of a torque receiving portion of the back plate; A back plate, wherein a material of the metal plate is at least one selected from the group consisting of iron and an iron alloy.
  • the material having a lower specific gravity than the steel is at least one selected from the group consisting of an aluminum alloy, an aluminum composite material, a magnesium alloy, and a fiber-reinforced resin.
  • a disc brake pad comprising the back plate according to any one of [1] to [4] and a friction material on one surface of the back plate.
  • a caliper assembly comprising: the disc brake pad according to [5]; and a caliper for pressing the disc brake pad against a counterpart material.
  • the present invention it is possible to provide a back plate, a disc brake pad, and a caliper assembly in which the weight of the back plate is reduced and the durability during braking is improved.
  • the back plate according to the present embodiment is a back plate for a disc brake, wherein the material of the main body portion of the back plate contains a material having a specific gravity lower than steel, and at least a part of the torque receiving portion of the back plate has a metal plate. And the material of the metal plate is at least one selected from the group consisting of iron and iron alloys.
  • the back plate 1 according to the present embodiment can take various forms.
  • the back plate 1 according to the present embodiment includes a main body 11, a first pad guide 12 protruding from the reciprocating side of the main body 11, A configuration including a second pad guide portion 13 protruding from the leading side of the main body portion 11 can be adopted.
  • the first pad guide portion 12 has an outer peripheral side root 4 and an inner peripheral side root 5.
  • the second pad guide portion 13 has an outer peripheral root 6 and an inner peripheral root 7.
  • the pad guide portions (the first pad guide portion 12 and the second pad guide portion 13) have a shape corresponding to a support portion of a caliper (not shown), thereby facilitating installation of the back plate 1 on the caliper.
  • the pad guide portions (the first pad guide portion 12 and the second pad guide portion 13) have a nested shape when supported by the vehicle.
  • the material of the first pad guide 12 and the second pad guide 13 is preferably the same as the material of the main body 11 from the viewpoint of improving durability.
  • the torque receiving portion 14 in the back plate 1 shown in FIGS. 2A and 3A is a projecting side surface of the main body 11 on which the second pad guide portion 13 is projectingly provided. 2 (b), 2 (c) and 3 (b), 3 (c), the torque receiving portion 14 of the back plate 1 is an end of the second pad guide portion 13 projecting from the main body portion 11.
  • the torque receiving portion 14 in the back plate 1 shown in FIGS. 2D and 3D is a side surface of the main body portion 11 on the circulation side.
  • a metal plate 15 is arranged on at least a part of each torque receiving portion 14.
  • the metal plate 15 is arranged on at least a part of the torque receiving portion 14 in the back plate 1.
  • the metal plate 15 is preferably disposed on the entire torque receiving portion 14 from the viewpoint of suppressing deformation and wear of the torque receiving portion 14 due to torque during braking.
  • the back plate 1 arranged on the caliper 20 comes into contact with the caliper 20 during braking, so that the caliper 20 is in an open state.
  • the torque is biased, and stress is concentrated on a part, so that deformation and wear are likely to occur.
  • the provision of the metal plate 15 reduces the stress concentration, as shown by the hatched portion in FIG. 5B, and can suppress deformation and abrasion.
  • the material of the metal plate 15 is at least one selected from the group consisting of iron and iron alloys.
  • the iron alloy include those containing iron such as carbon, silicon, magnesium, nickel, chromium, molybdenum, and copper, and specifically, steel and cast iron.
  • the thickness T of the metal plate 15 is preferably 0.1 mm or more, more preferably 0.2 mm or more, and more preferably 0.3 mm or more from the end of the back plate 1. More preferably, there is.
  • the upper limit of the thickness T of the metal plate 15 is not particularly limited, but is preferably 5.0 mm or less, and more preferably 2.0 mm or less. When the thickness T of the metal plate 15 is within the above range, deformation and wear of the torque receiving portion due to torque during braking can be suppressed.
  • the material of the outer portion 11 of the back plate 1 contains a material having a specific gravity lower than that of steel.
  • the material of the outer portion 11 of the back plate 1 contains a material having a specific gravity lower than steel, preferably 50% by volume or more, more preferably 80% by volume or more, and still more preferably 90% by volume or more. It is particularly preferable that the material be made of a light material.
  • the material having a specific gravity lower than that of steel is preferably a material having a specific gravity of 5 or less, more preferably a material having a specific gravity of 3 or less, and further preferably a material having a specific gravity of 2 or less.
  • Materials having a lower specific gravity than steel include, for example, aluminum alloys, aluminum composite materials, magnesium alloys, and fiber reinforced resins. That is, the material of the back plate is preferably at least one selected from the group consisting of an aluminum alloy, an aluminum composite material, a magnesium alloy, and a fiber reinforced resin.
  • Aluminum has a small specific gravity of about 2.7 and is therefore suitable as a lightweight material. However, from the viewpoint of strength, it is preferable to use an aluminum alloy as the back plate.
  • Aluminum alloys include 2XXX (Al-Cu), 3XXX (Al-Mn), 4XXX (Al-Si), 5XXX (Al-Mg), and 6XXX (Al-Mg-Si).
  • AC1C Al-Cu-based
  • AC1B Al-Cu-based
  • AC2A Al-Cu-Si-based
  • AC2B Al-Cu-) Si-based
  • AC3A Al-Si-based
  • AC4A AC4C
  • AC4C Al-Si-Mg-based
  • AC4B Al-Si-Cu-based
  • AC4D Al-Si-Cu-Mg-based
  • AC5A Al- Cu-Ni-Mg
  • AC7A Al-Mg
  • AC8A Al-Si-Cu-Ni-Mg
  • AC8B Al-Si-Cu-Ni-Mg
  • AC9A Al-Si-) Cu-Mg type , AC9B (Al-Si-Cu-Mg) and other casting aluminum alloys
  • ADC1 Al-Si
  • ADC3 Al-Si
  • An aluminum composite material in which ceramic particles are dispersed in aluminum or the above-mentioned aluminum alloy (ceramic particle reinforced aluminum-based composite material) has a higher Young's modulus than an aluminum alloy. This is preferable because the rigidity of the sheet can be increased.
  • oxide ceramics such as Al 2 O 3 , TiO 2 , SiO 2 , ZrO 2 , carbide ceramics such as SiC and TiC, and nitride ceramics such as TiN can be used.
  • magnesium alloy Since magnesium has a small specific gravity of 1.74, it is suitable as a lightweight material, but from the viewpoint of strength, it is preferable to use a magnesium alloy as the back plate.
  • magnesium alloys include M1 (Mg-Mn alloy), AZ-based (Mg-Al-Zn alloy) such as AZ61 and AZ91, ZK-based (Mg-Zn-Zr alloy) such as ZK51 and ZK60, and ZH-based such as ZH62.
  • magnesium alloys for casting such as EK-based (Mg-rare earth element alloy) such as EK30, HK-based (Mg-Th-based alloy) such as HK31, and K1 (Mg-Zr alloy);
  • EK-based Mg-rare earth element alloy
  • HK-based Mg-Th-based alloy
  • K1 Mg-Zr alloy
  • a magnesium alloy for processing can be used.
  • a flame-retardant magnesium alloy to which calcium is added by several% can be used.
  • the fiber-reinforced resin refers to a composite of fiber and resin, that is, a composite of fiber and resin. Since the specific gravity of the fiber reinforced resin is about 1, it is suitable as a lightweight material.
  • the fiber used for the fiber-reinforced resin examples include glass fiber, alumina fiber such as ⁇ -alumina type and ⁇ -alumina type, and inorganic fiber such as boron fiber; aramid fiber such as para-aramid fiber and meta-aramid fiber; At least one selected from the group consisting of cellulose fibers, nanocellulose fibers, PBO (polyparaphenylenebenzoxazole) fibers, or oxidized fibers, pitch-based fibers, and carbon-based fibers such as PAN (polyacrylonitrile) -based carbon fibers; Can be used. Particularly when used as a back plate, glass fibers and carbon fibers are preferred from the viewpoint of strength and rigidity, and carbon fibers are more preferred from the viewpoint of high thermal conductivity.
  • the thermal conductivity of the back plate can be further improved, and when the braking temperature is increased by frictional heat due to repeated braking, the temperature distribution in the back plate can be made uniform. In addition, there is a tendency that a local temperature rise is prevented, and cracks and cracks due to thermal decomposition and a decrease in strength of the resin are easily prevented.
  • the fiber length of the fiber used for the fiber reinforced resin is not particularly limited, but from the viewpoint of strength, a fiber length of 1 mm or more is preferable, and a long fiber of 10 mm or more is more preferable.
  • the upper limit of the fiber length of the fiber is not particularly limited, and may be 100 mm or less, 70 mm or less, 50 mm or less, or 35 mm or less.
  • a nonwoven fabric such as felt, a paper product, a woven fabric made of continuous fibers, a knitted fabric, and a woven fabric such as a mixed fabric can also be used.
  • a thermosetting resin is preferable from the viewpoint of heat resistance
  • a phenol resin, an epoxy resin, and a polyimide resin are preferable from the viewpoint of heat resistance and strength. It is preferable to use a curing agent in combination with the phenol resin and the epoxy resin.
  • the resin used for the fiber reinforced resin one type may be used alone, or two or more types may be used in combination.
  • the phenol resin a commercially available product can be used, and the phenol resin can be synthesized by a conventional method.
  • the phenol resin examples include a resol type phenol resin, a straight novolak type phenol resin, an aralkyl-modified phenol resin, an elastomer-modified phenol resin modified with an acrylic elastomer, a silicone elastomer, and the like. From the viewpoint of heat resistance, the phenol resin is preferably a straight novolak type phenol resin or a resol type phenol resin.
  • the epoxy resin is preferably an epoxy resin having an aromatic ring from the viewpoint of strength and heat resistance.
  • a phenol novolak type epoxy resin, a cresol novolak type epoxy resin, a naphthalene type epoxy resin, or the like can be suitably used.
  • epoxy resin modified with silicone, acrylonitrile, butadiene, isopropyl rubber, polyamide resin, or the like can also be used.
  • additives can be blended in addition to the above fibers and resin.
  • Other additives include inorganic fillers, organic fillers, metal powders and the like.
  • the other additives one kind may be used alone, and two kinds or more may be used in combination. It is preferably a particulate inorganic filler, organic filler, or metal powder.
  • the particle diameter is preferably small.
  • graphite, molybdenum disulfide, tungsten sulfide, fluororesin, coke, and the like are mentioned.
  • magnesium hydroxide and aluminum hydroxide are used.
  • antimony compounds, etc. from the viewpoint of weight reduction, hollow inorganic particles, etc., from the viewpoint of improving the curing speed of the resin, calcium oxide, calcium hydroxide, etc., to improve the thermal conductivity From the point of view, metal powder, graphite, magnesium oxide, zinc oxide and the like can be mentioned.
  • the fiber reinforced resin preferably has a thermal conductivity in the thickness direction of 0.4 W / m ⁇ K or more, and more preferably 0.45 W / m ⁇ K or more in order to prevent a local temperature rise of the back plate. More preferably, it is more preferably 1 W / m ⁇ K or more.
  • a method of adding an additive having a high thermal conductivity such as metal powder, graphite, magnesium oxide, and zinc oxide to the fiber reinforced resin examples include a method using a fiber having a high thermal conductivity such as a carbon fiber as the fiber, and a fiber reinforced resin employing one of these methods alone or a combination of two or more thereof can be used.
  • the fiber reinforced resin is molded and, if necessary, shaped to produce a fiber reinforced resin back plate.
  • the above friction member can be manufactured. That is, the preformed friction material composition is inserted into the mold hole of the thermoforming mold of the friction material as necessary, and then the adhesive is preliminarily applied to the back plate made of fiber reinforced resin in contact with the preformed body. Place the applied material. Then, by forming the friction material by thermoforming the friction material composition, the fiber reinforced resin and the friction material can be integrated to form a friction member.
  • thermoforming of the back plate made of the fiber reinforced resin and the thermoforming of the friction material are performed separately, so that the energy efficiency is not necessarily good. Therefore, energy efficiency can be improved by simultaneously performing thermoforming of the back plate made of fiber reinforced resin and thermoforming of the friction material. That is, the fiber reinforced resin in the state before the thermosetting and the friction material composition which has been preformed as necessary are inserted, and simultaneously thermoformed, and the thermosetting property in the fiber reinforced resin in the thermoforming step is changed. By melting and curing the resin and the thermosetting resin in the friction material, the resin and the thermosetting resin can be integrated without the need for an adhesive.
  • the disc brake pad according to the present embodiment includes the above-described back plate 1 and a friction material 2 on one surface of the back plate 1.
  • a friction material formed from a friction material composition containing a binder, an organic filler, an inorganic filler, and a fibrous base material is used.
  • the friction material can be formed by laminating the friction material composition or the preform of the friction material composition on the back plate 1 and hot-pressing the same, and then heat-treating the thermosetting resin as the binder.
  • the thickness of the friction material 2 is preferably 4 mm or more and 15 mm or less, more preferably 6 mm or more and 15 mm or less, and even more preferably 7 mm or more and 13 mm or less.
  • the disc brake pad according to the present embodiment can take a form in which the friction material 2 is formed on the back plate 1 via the intermediate layer 3 as shown in FIG.
  • a friction material formed from a friction material composition containing a binder, an organic filler, an inorganic filler, and a fibrous base material is used.
  • the friction material composition and the composition of the intermediate layer or the preform of the friction material composition and the composition of the intermediate layer are overlapped with the back plate 1. And then heat-treated, and then heat-treated to cure the thermosetting resin as a binder.
  • the thickness of the intermediate layer 3 is preferably 1 mm or more and 5 mm or less from the viewpoint that the heat insulating effect between the friction material 2 and the back plate 1 increases and cracks and cracks of the back plate 1 can be effectively suppressed.
  • it is 1 mm or more and 3 mm or less, more preferably 1 mm or more and 2 mm or less.
  • the back plate 1 contains a fiber reinforced resin, and the thermosetting resin contained in the friction material 2 is used for the back plate 1. It is preferable that By doing so, the back plate 1 and the friction material 2 can be integrally formed by hot pressing without using an adhesive, so that not only the strength and toughness of the disc brake pad are improved but also the manufacturing process is simplified. It is preferable from the viewpoint of.
  • the thermosetting resin used for the back plate 1 is the thermosetting resin contained in the friction material 2 and the intermediate layer 3. It is preferable to use a combination of chemical components capable of forming a chemical bond with each other upon curing.
  • the back plate 1, the intermediate layer 3, and the friction material 2 can be integrally formed by hot-pressure molding without using an adhesive, so that not only the strength of the disc brake pad is improved but also the manufacturing process is improved. It is preferable from the viewpoint of simplification. Further, when the back plate 1 includes an aluminum alloy or an aluminum composite material containing Cu, Zn, or the like, the aging precipitation process can be performed simultaneously with the hot pressing and the heat treatment. In this case, it is preferable not only from the viewpoint of improving the strength of the disc brake pad but also simplifying the manufacturing process.
  • the caliper assembly includes the above-described disc brake pad and a caliper that presses the disc brake pad against a mating member.
  • the caliper assembly plays a role of braking by rubbing a friction material provided on the disc brake pad with a disc rotor or the like as a mating material.
  • Example 1 a back plate having a thickness of the main body of 6.0 mm and a width of the pad guide of 10 mm was formed using 5083-O (Al-Mg based), which is an aluminum alloy, as the material of the back plate. .
  • an adhesive (trade name “JB Weld Auto Weld AW-20Z” manufactured by Ryusei Community Co., Ltd.) was applied to the torque receiving portion of the formed back plate, and a 0.2 mm thick stainless steel plate (metal plate) was applied. ) was arranged and pressed to obtain a back plate of Example 1.
  • the surface on which the stainless steel plate (metal plate) of the torque receiving portion of the back plate is disposed is ground in advance by the thickness of the stainless steel plate (metal plate) to be disposed, so that the torque receiving portion of the back plate can be rotated.
  • the dimensions at the end corresponding to the torque receiving part on the entry side have been unified.
  • Example 2 As Example 2, a back plate of Example 2 was obtained in the same manner as Example 1 except that the thickness of the stainless steel plate (metal plate) was changed to 0.5 mm.
  • Example 3 As Example 3, a back plate of Example 3 was obtained in the same manner as Example 1 except that the thickness of the stainless steel plate (metal plate) was changed to 1.0 mm.
  • Comparative Example 1 As Comparative Example 1, a back plate of Comparative Example 1 was obtained in the same manner as in Example 1 except that a stainless steel plate (metal plate) was omitted.
  • a back plate of Reference Example 1 was obtained in the same manner as in Example 1 except that a stainless steel plate (metal plate) was used without using steel as the material of the back plate.
  • Durability test of back plate Appearance A brake dynamo test was performed using the disc brake pads of each example prepared above, and the durability of the back plate was evaluated. In the evaluation, a general pin-slide type caliper compatible with a collet and a ventilated disc rotor were used to evaluate the inertia at 7 kgf ⁇ m ⁇ s 2 . After repeating five times of braking for 5 seconds at a vehicle speed of 65 km / h and a deceleration of 1.5 G, the appearance of the back plate was checked for defects (crushing, buckling, breakage, chipping, cracks), and according to the following evaluation criteria. evaluated.
  • Table 1 shows the evaluation results.
  • B At least one of crushing and buckling exceeding 0.1 mm occurred on the back plate, but no breakage, chipping or cracking occurred.
  • C At least one of crushing and buckling exceeding 0.1 mm occurred on the back plate, and at least one of breakage, chipping and cracking occurred.
  • Comparative Example 1 which is a lightweight material back plate using 5083-O (Al-Mg based) as an aluminum alloy as a material of the back plate has collapsed appearance, buckling, breakage, and the like after the durability test. It was confirmed that there was chipping and cracks, and a dimensional change of 1.0 mm or more occurred before and after the test, confirming that there was a practical problem.
  • the conventional disk brake pad using the steel back plate of Reference Example 1 had no problem in appearance after the test. However, the mass of the steel back plate in the disc brake pad of Reference Example 1 was 250 g, and the mass of the back plate in the disc brake pads of Examples 1 to 3 was 90 g. When one to three disc brake pads are used, the mass of 160 g per disc brake pad can be reduced.
  • the back plate, the disc brake pad, and the caliper assembly of the present invention have durability that is practically no problem, and are light in weight, so that the back plate, the disc brake pad, and the like are used for braking a two-wheeled or four-wheeled vehicle. It is suitable as a caliper assembly.

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  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
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Abstract

L'invention concerne une plaque arrière pour freins à disque, qui est conçue de sorte que : le matériau d'une partie de corps principal de la plaque arrière contient un matériau de densité plus légère que celle de l'acier; une plaque métallique est disposée sur au moins une partie d'un module de réception de couple de la plaque arrière; et le matériau de la plaque métallique est composé d'au moins une substance choisie dans le groupe constitué par le fer et des alliages ferreux.
PCT/JP2018/027776 2018-07-24 2018-07-24 Plaque arrière, plaquette de frein à disque et ensemble compas WO2020021645A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2018/027776 WO2020021645A1 (fr) 2018-07-24 2018-07-24 Plaque arrière, plaquette de frein à disque et ensemble compas
JP2020531885A JP7226448B2 (ja) 2018-07-24 2018-07-24 バックプレート、ディスクブレーキパッド及びキャリパーアッセンブリ

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Application Number Priority Date Filing Date Title
PCT/JP2018/027776 WO2020021645A1 (fr) 2018-07-24 2018-07-24 Plaque arrière, plaquette de frein à disque et ensemble compas

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WO2020021645A1 true WO2020021645A1 (fr) 2020-01-30

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PCT/JP2018/027776 WO2020021645A1 (fr) 2018-07-24 2018-07-24 Plaque arrière, plaquette de frein à disque et ensemble compas

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0592547U (ja) * 1992-05-15 1993-12-17 曙ブレーキ工業株式会社 ディスクブレーキ用パッドの裏金
JP2012211676A (ja) * 2011-03-31 2012-11-01 Nippon Brake Kogyo Kk ブレーキパッド
WO2017013619A1 (fr) * 2015-07-21 2017-01-26 Itt Italia S.R.L. Unité de freinage de véhicule, plaquette de frein et procédés associés

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0592547U (ja) * 1992-05-15 1993-12-17 曙ブレーキ工業株式会社 ディスクブレーキ用パッドの裏金
JP2012211676A (ja) * 2011-03-31 2012-11-01 Nippon Brake Kogyo Kk ブレーキパッド
WO2017013619A1 (fr) * 2015-07-21 2017-01-26 Itt Italia S.R.L. Unité de freinage de véhicule, plaquette de frein et procédés associés

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JP7226448B2 (ja) 2023-02-21

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