Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
  • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
  • F16D69/02—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
  • 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
  • F16D65/02—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
• • 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
  • F16D69/023—Composite materials containing carbon and carbon fibres or fibres made of carbonizable material
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
  • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
  • F16D2055/0075—Constructional features of axially engaged brakes
  • F16D2055/0091—Plural actuators arranged side by side on the same side of the rotor

Definitions

• the present invention relates to a friction pad of a disk brake mounted on a vehicle such as a motorcycle and a motorcycle.
• these materials include carbon-carbon composites, that is, carbon fiber reinforced. Carbon composites have been proposed.
• the carbon-carbon composite is obtained by subjecting carbon fibers impregnated with carbon matrix to carbonization and densification, and has the same coefficient of friction. It is used for both brake disks and friction pads due to its high properties and low properties with different materials. .
• this carbon-carbon composite has a high coefficient of friction in a high temperature range of about 100 ° C or more, and has a high heat resistance, thermal shock resistance, Although it has excellent conductivity, on the other hand, in such a high temperature range, the oxidation consumption rate is increased, and the durability of the friction pad is reduced, and the braking heat is applied to the hydraulic system. Is easily transmitted.
• the entire friction pad is integrally formed of carbon monolithic composite.
• the friction pad with a low or high force has a lower rigidity than a friction pad with a metal back plate, and is deflected by the pressing of the piston. This will give the driver a soft brake feeling.
• the carbon-carbon composite has high thermal conductivity, so a high-performance insulator is mounted on the back of the friction pad, so that the vapor Because of the need to take countermeasures, a backing made of a heterogeneous material was bonded to the line made of carbon-carbon composites by rivets, etc. Although friction pads are provided, the use of multiple heavy rivets will result in a friction pad despite the use of carbon-carbon composites. The disadvantage is that the overall weight of the
• the present invention can increase rigidity with a simple structure, prevent adverse effects due to oxidation, and further improve friction of a vehicle disk brake having excellent heat insulation. It aims to provide a pad.
• the friction pad according to the present invention includes a friction member r: J on the brake disk, a back surface of the lining, and a side portion of the lining. And the coating layer formed on the torque receiving surface of the first member, wherein the lining is made of a carbon composite material, and the coating layer is made of one of a glass and a heat-resistant resin. I'm afraid.
• the coating layer is also formed on a lining side other than the torque receiving surface.
• the carbon composite of the friction pad of the present invention is a carbon-carbon composite. Pods or glass-impregnated carbon materials are preferred.
• the carbon-carbon composite of the present invention can be obtained by subjecting a carbon fiber impregnated with a carbon matrix to carbonization and densification as described above. And can be done.
• the glass impregnated carbon material is obtained by impregnating the carbon component contained in the carbon-carbon composite with a glass component. Wear .
• the glass of the friction pad of the present invention is preferably a glass of borate acid.
• the rigidity of the friction pad is increased, the strength of the piston pad is increased, and the strength of the friction pad is increased with respect to the braking torque.
• the frictional force also prevents the lining from being chipped due to oxidation and the like. ,, And durability can be increased.
• it has excellent heat insulation properties, and can always exhibit the brake performance of the carbon composite material stably and sufficiently.
• FIG. 1 is a sectional view of a disk brake showing a first embodiment of the present invention
• Figure 2 is a perspective view of the friction pad
• FIG. 3 is a perspective view of a friction pad showing a second embodiment of the present invention.
• the disk brake 1 1 is a brake that rotates together with the wheels.
• a brake disk 1 2 a carriage 13 disposed over the outer periphery of the brake disk 12, and the brake disk 1. 2 and a pair of friction pads ⁇ 4 opposed to each other on both sides.
• the working portion 13a and the reaction portion 13b of the carrier 13 are connected by a bridge portion 13c.
• the working portion] 3a is provided with a cylinder hole 15 which opens to the brake disk 12 side.
• a piston 16 is liquid-tightly and movably inserted into the cylinder hole 5, and a hydraulic chamber 17 is formed at the rear of the piston 16. .
• the pair of friction pads 14 may be hung by a hanger pin] 8 penetrating the bridge portion 13c in the disk axis direction.
• the pad spring 19 mounted on the inside of the bridge section 3c is urged toward the center of the brake disk.
• the friction pad: I 4 includes a lining 20 frictionally engaged with the brake disk 12, and a rear surface 2 a of the lining 20. And a coating layer 2] formed on the inner peripheral surface of the through hole of the hanger pin 18.
• the lining 21 is made of carbon composite, and the coating layer 21 is made of glass or heat-resistant resin.
• carbon composite base material of the above-mentioned lining 2% long and short carbon fibers or graphite fibers are impregnated with resin or pitch, and then baked to carbonize.
• Carbon composite or its carbon Glass impregnated carbon obtained by impregnating the carbon pores of the carbon composite with a glass component Material is suitable to
• the coating layer 21 impregnates the lining 20 by dripping the lining 20 into a glass or a solution of heat-resistant resin.
• the lining 2 is formed by coating, crimping or spraying.
• the boronic acid glass is easily compatible with the carbon-carbon composite and has higher rigidity than the carbon-carbon composite. It is suitable because it has low thermal conductivity and hardly oxidizes.
• the friction pad 14 has a glass surface such as a piston contact surface 14a, a side torque receiving surface 14b, and a through hole 14c. Or, because it is covered with the heat-resistant resin coating layer 21, the rigidity is increased and the strength is increased, and the piston contact surface 14 a and The flexure receiving surface 14b does not bend and the force disappears, and a good brake feeling with a sense of rigidity can be obtained.
• the brake disk 12 and the friction pad] 4 are highly stable when raised to 10 ° C or more by frictional heat due to braking.
• the coating layer 2] can also maintain the heat retaining property and the heat insulating property of the friction pad 14 so that the friction In addition to exerting its full performance, it is also important to shut off heat transfer to the hydraulic system to prevent vapor lock.
• the coating layer 21 prevents contact between the carbon-carbon composite and the air, the corners of the lining 20 may be chipped off. Oxidation consumption can be prevented.
• the brake disk "! 2" provides a high frictional force to a platform in which carbon-carbon composites are frictionally engaged with each other. For this reason, it is preferable that it is made of the same carbon composite material as that of Lining 20.
• the friction pad 31 has a lining 32 frictionally engaged with the brake disk 12, a back surface of the lining 32, and the lining. And a coating layer 33 formed on a torque receiving surface 32 a on the side of the portion 32.
• the lining 32 and the coating layer 33 are made of the same material as in the first embodiment.o
• the friction pad 31 improves the strength of the piston pad against the pushing and braking of the piston and improves the heat insulation.
• the coating layer 33 on the rear surface of the friction pad 31 may be formed at least in the portion where the piston abuts.

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Composite Materials (AREA)
• Materials Engineering (AREA)
• Braking Arrangements (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

Family

ID=12661719

Family Applications (1)

Country Status (4)

Cited By (2)

Families Citing this family (15)

Citations (3)

Family Cites Families (10)

• 1990
  • 1990-04-23 JP JP1990043361U patent/JPH043135U/ja active Pending
• 1991
  • 1991-04-23 EP EP91908463A patent/EP0482210B1/en not_active Expired - Lifetime
  • 1991-04-23 WO PCT/JP1991/000535 patent/WO1991016554A1/ja active IP Right Grant
  • 1991-04-24 US US07/778,892 patent/US5377792A/en not_active Expired - Fee Related

Patent Citations (3)

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