JP2015102135A - Disk brake for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disk brake for a vehicle that enables suppression of looseness of a friction pad, cost reduction and improvement of mounting performance.SOLUTION: A plate-like shim plate 8 is mounted to a back surface of a friction pad 7. In the shim plate 8 on the action portion side, part of the plate material arranged inside a piston 10a is cut and raised and is protruded on the side opposite to a disk rotor gradually toward the disk turn-in side during forward movement of the vehicle, so as to form a first pressing piece 8c. The first pressing piece 8c is made to abut on an inner peripheral surface 10c on the disk turn-in side of the piston 10a, so as to energize the friction pad 7 on the disk turn-out side. In the shim plate on the side opposite to the reaction portion side, part of the plate material disposed between reaction force claws is cut and raised, so as to form a second pressing piece that is protruded on the side opposite to the disk rotor gradually toward the disk turn-in side. The second pressing piece is made to abut on the disk turn-out side surface of the reaction force claw, so as to energize the friction pad on the disk turn-out side.

Description

  The present invention relates to a vehicle disc brake used for automobiles, motorcycles, and the like, and more particularly to a vehicle disc brake having a shim plate on the back surface of a friction pad.

  Conventionally, in a vehicle disc brake, in order to prevent the friction pad from rattling, the pad spring urges the friction pad toward the disc delivery side when the vehicle advances, and the disc delivery side of the back plate of the friction pad is urged. In some cases, the torque receiving surface provided on either the caliper body or the caliper bracket is always brought into contact with the torque receiving surface. As this pad spring, there is one that is formed by bending a wire rod in a spiral shape, and the center part is attached to the back plate of the friction pad with a rivet, and the tip end side of the wire rod is the inner peripheral surface of the piston in the disk The friction pad is urged toward the disk delivery side by abutting the disc (see, for example, Patent Document 1).

JP 60-184728 A

  However, in the thing of the above-mentioned patent document 1, since a pad spring and a rivet are used, the number of parts increases and cost increases, and the pad spring formed helically is made to contact the inner peripheral surface of a piston. As a result, it took time to assemble, and the assemblability was not good.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a vehicle disc brake capable of suppressing backlash of a friction pad and reducing costs and improving assemblability.

  In order to achieve the above object, the vehicle disc brake of the present invention is supported by a caliper bracket fixed to a vehicle body, and the disc rotor side is opened at a pair of action portions of a caliper body disposed across the disc rotor. Each cylinder hole is formed to face each other, and a cup-shaped piston is inserted into each cylinder hole with the opening facing the disk rotor side, and a pair of friction pads is provided on both sides of the disk rotor. In the vehicular disc brake in which a plate-like shim plate is attached to the back surface of the friction pad, the shim plate cuts and raises a part of the plate material arranged on the inner side of the piston, and rotates the disc when the vehicle moves forward. A pressing piece is formed by gradually projecting toward the entry side toward the opposite disk rotor side, and the pressing piece is formed on the inner peripheral surface of the piston on the disk entry side. The friction pad is brought into contact is characterized by biasing the outlet side disk rotation.

  Further, a plurality of cylinder holes opened on the disk rotor side are respectively formed in a pair of action portions of the caliper body supported by a caliper bracket fixed to the vehicle body and disposed across the disk rotor, A cup-shaped piston is inserted into the cylinder hole with the opening directed toward the disk rotor, and a pair of friction pads are arranged on both sides of the disk rotor. A plate-shaped shim plate is disposed on the back of the friction pad. In the mounted vehicle disc brake, the shim plate cuts and raises a part of the plate material arranged inside any one of the pistons, and gradually protrudes toward the disc entry side and pushes it against the disc rotor side. A piece is formed, and the pressing piece is brought into contact with the inner peripheral surface of the disk on the disk feeding side of any one of the pistons, and the friction pad is moved to the disk feeding side. It is characterized in that biasing. Further, any one of the pistons is a piston arranged closest to the disk delivery side when the vehicle moves forward, and the pressing piece is disposed on the inner side of the disk delivery side of the piston arranged closest to the disk delivery side. It is preferable to contact the peripheral surface.

  In addition, a cylinder hole is formed in the action part of the caliper body supported by a caliper bracket fixed to the vehicle body and supported across the disk rotor, and two reaction force claws are formed in the reaction part, A cup-shaped piston is inserted into the cylinder hole with the opening facing toward the disk rotor, and a pair of friction pads are arranged on both sides of the disk rotor, and a plate-like shim plate is attached to the back of the friction pad. In the vehicle disc brake, the shim plate arranged on the action portion side cuts and raises a part of the plate material arranged on the inner side of the piston, and gradually moves toward the disc entry side when the vehicle moves forward. When a pressing piece protruding to the rotor side is formed, and the pressing piece is brought into contact with the inner peripheral surface of the piston on the disk insertion side, and the friction pad on the working part side is biased toward the disk delivery side. In addition, the shim plate arranged on the reaction part side cuts and raises a part of the plate material arranged between the two reaction force claws, and gradually moves toward the disk entry side when the vehicle moves forward. Forming a pressing piece projecting to the rotor side, bringing the pressing piece into contact with the disk feeding side surface of the reaction force claw on the disk feeding side, and urging the friction pad on the reaction part side toward the disk feeding side It is characterized by.

  Furthermore, a plurality of cylinder holes are provided in the action part of the caliper body supported by a caliper bracket fixed to the vehicle body and supported across the disk rotor, and a plurality of reaction force claws corresponding to the cylinder holes are provided in the reaction part. A cup-shaped piston is inserted into each cylinder hole with the opening facing the disk rotor, and a pair of friction pads are arranged on both sides of the disk rotor. In the vehicle disc brake to which a plate-like shim plate is attached, the shim plate arranged on the action part side cuts and raises a part of the plate material arranged on the inner side of any one of the pistons, A pressing piece is formed by gradually projecting toward the disk rotor toward the disk, and the pressing piece is brought into contact with the inner peripheral surface on the disk insertion side of any one of the pistons. The shim plate disposed on the reaction portion side is biased to the reaction force claw and any one reaction force claw while urging the friction pad on the portion side toward the disk delivery side. A part of the plate material disposed between the reaction force claws is cut and raised to form a pressing piece that gradually protrudes toward the disk insertion side toward the opposite disk rotor side. The friction pad on the reaction part side is urged toward the disk delivery side. Further, the one of the pistons is a piston that is disposed closest to the disk delivery side when the vehicle moves forward, and the pressing piece on the action portion side is disposed on the disk rotation side of the piston that is disposed closest to the disk delivery side. The one reaction force claw and the reaction force claw adjacent to the one reaction force claw are brought into contact with the inner peripheral surface on the entry side, and the reaction force arranged closest to the disk delivery side. A claw and a reaction force claw adjacent to the reaction force claw arranged closest to the disk delivery side, and the pressing piece on the reaction part side is brought into contact with the disk delivery side surface of the adjacent reaction force claw preferable.

  In addition, it is preferable that an insulator for heat insulation is disposed between the friction pad and the shim plate.

  According to the vehicle disc brake of the present invention, since the friction pad is pressed to the disk delivery side by the pressing piece integrally formed on the shim plate only by attaching the shim plate to the friction pad, the assembling property is improved. In addition, since the pad spring is not used as in the prior art, the number of parts is not increased and the cost can be reduced.

  In the two-pot piston-facing disc brake, the friction pad can be favorably pressed toward the disc delivery side by bringing the pressing piece into contact with the inner peripheral surface of the piston on the disc entry side.

  Furthermore, in a piston-facing type disc brake of 4 pots or more, the friction pad is favorably pressed to the disc delivery side by bringing the pressing piece into contact with the inner peripheral surface of the disc delivery side of any one piston. be able to.

  In addition, since any one of the pistons is a piston arranged closest to the disk delivery side when the vehicle moves forward, the pressing piece comes into contact with the inner peripheral surface of the piston on the disk delivery side of the friction pad. The entire friction pad can be efficiently urged toward the disk delivery side.

  Further, in the single pot pin slide type disc brake, the pressing piece on the action portion side is brought into contact with the inner peripheral surface of the piston on the disk insertion side, and the pressing piece on the reaction portion side is made to react on the disk insertion side. By bringing the force claw into contact with the disk delivery side, the friction pad can be favorably pressed toward the disk delivery side.

  Further, in a pin slide type disc brake having two or more pots, a pressing piece on the action portion side is formed inside any one of the pistons, and is contacted with an inner peripheral surface of any one of the pistons on the disk introduction side. And the reaction piece side pressing piece is formed between any one of the reaction force claws and the reaction force claw adjacent to the reaction force claw, and the adjacent reaction force claw disc is extended. By contacting the side surface, the friction pad can be favorably pressed toward the disk delivery side.

  Further, any one of the pistons is a piston arranged closest to the disk delivery side when the vehicle is moving forward, and the pressing piece on the action portion side is the piston closest to the disk delivery side of the piston arranged on the disk delivery side. A reaction force nail that is disposed on the disk delivery side most closely with the one reaction force nail and the reaction force nail adjacent to the one reaction force nail, By making the reaction force claw adjacent to the reaction force claw arranged closest to the disk delivery side, and by bringing the pressing piece on the reaction part side into contact with the disk delivery side surface of the adjacent reaction force claw, The pressing piece abuts against the inner peripheral surface of the piston on the disk feeding side of the friction pad, and on the reaction part side, the pressing piece is on the disk feeding side of the adjacent reaction force claw on the disk feeding side of the friction pad. The entire friction pad. It can be biased to the run-out side.

  Furthermore, by disposing an insulator for heat insulation between the friction pad and the shim plate, transmission of braking heat to the piston side and the reaction force claw side can be blocked as much as possible.

1 is a partial cross-sectional front view of a vehicle disc brake showing one embodiment of the present invention. FIG. 3 is a rear view of the vehicle disc brake. FIG. 3 is a sectional view taken along line III-III in FIG. 1. It is a top view of the disc brake for vehicles which shows one example of the present invention. It is VV sectional drawing of FIG. It is VI-VI sectional drawing of FIG. It is a disassembled perspective view of the friction pad and shim board which show one example of this invention.

  FIGS. 1 to 7 are views showing one embodiment of a vehicle disc brake according to the present invention. An arrow A in the drawing indicates a rotational direction of the disc rotor during forward traveling of the vehicle, and is used in the following description. The side and the return side are when the vehicle is traveling forward.

  The vehicle disc brake 1 includes a disc rotor 2 that rotates integrally with a wheel (not shown), a caliper bracket 3 fixed to a vehicle body at one side of the disc rotor 2, and a pair of slide pins attached to the caliper bracket 3. 4 and 5, a pin slide type caliper body 6 supported so as to be movable in the axial direction of the disc rotor, and a pair of friction pads 7 and 7 arranged opposite to both sides of the disc rotor 2, A shim plate 8 is attached to the back surface of the friction pad 7.

  The caliper bracket 3 protrudes in the direction of the other side across the outer side of the disk rotor 2 on the disk rotor delivery side of the caliper body 6 and the plate-like part 3a disposed along one side of the disk rotor 2. And a pad support arm 3b. One slide pin 4 protrudes from the end of the disk-like portion 3a on the disk insertion side, and a pin hole 3c through which the other slide pin 5 is inserted is formed in the pad support arm 3b. Further, on the caliper body side of the pad support arm 3b, a pair of pad guide portions 3e and 3e each having a torque receiving surface 3d are provided with the disc rotor 2 interposed therebetween.

  The caliper body 6 connects the action part 6 a disposed on one side of the disk rotor 2 and the reaction part 6 b disposed on the other side of the disk rotor 2 so as to straddle the outside of the disk rotor 2. And a bridge portion 6c. Car body mounting arms 6d and 6e project from the inner side of the acting portion 6a in the disk radial direction on the disk feeding side and the outer side in the disk radial direction of the disk feeding side, respectively. A slide pin 5 is protruded, the other slide pin 5 is inserted into the pin hole 3c of the caliper bracket 3, and one slide pin 4 protruding from the plate-like portion 3a is formed on the vehicle mounting arm 6d. The caliper body 6 is supported by the caliper bracket 3 so as to be movable in the disk axial direction by being inserted into the pin receiving hole (not shown). Further, hanger pin support arms 6f and 6g are provided on the action portion 6a and the reaction portion 6b at positions outside the outer peripheral surface of the disc rotor 2 so as to protrude from the disc insertion side surface of the bridge portion 6c. A hanger pin 9 is installed on the hanger pin support arms 6f and 6g across the outer periphery of the disk rotor 2 in the disk axial direction.

  The action portion 6a is provided with two cylinder holes 6h and 6i opened on the disk rotor side, and the reaction portion 6b is provided with three reaction force claws 6j, 6k and 6m on the disk circumference. They are spaced apart in the direction. In each of the cylinder holes 6h and 6i, cup-shaped pistons 10a and 10b are respectively accommodated so that the openings can move toward the disk rotor side, and between the pistons 10a and 10b and the cylinder holes 6h and 6i. The hydraulic chambers 11 are respectively defined.

  The friction pad 7 includes a lining 7a that is in sliding contact with the side surface of the disk rotor 2, and a back plate 7b that is held by the caliper bracket 3 and the caliper body 6. The lining 7a has four blocks arranged in the circumferential direction of the disk. It is configured. The back plate 7b includes a hanging piece 7c that protrudes from the inner side of the bridge portion 6c so as to bend toward the disc insertion side and the outer side in the radial direction of the disc, and an ear that protrudes from the inner side of the bridge portion 6c to the disc outlet side. A piece 7d is provided. The friction pads 7 and 7 have the hanger pin 9 inserted into the tip of the suspension piece 7c, the ear piece 7d is accommodated in the pad guide part 3e, and the disc rotor 2 is sandwiched between the action part 6a and the reaction part 6b. Thus, it is suspended so as to be movable in the disk axis direction. An insulator 12 and the shim plate 8 that covers the insulator 12 are attached to the back surface of the back plate 7b.

  Each insulator 12 on the action part side and the reaction part side is made of a thin plate made of a material having excellent heat insulation, such as ceramics, metal, synthetic resin, etc., and has an outer edge shape of the hanging piece 7c of the back plate 7b. A hanging portion 12a having an attached outer edge shape is provided, and the hanger pin 9 is inserted into the hanging portion 12a. Further, the outer edge portions of the insulator 12 on the inner and outer peripheral sides of the disk are formed in the same outer edge shape as the outer edge portions on the inner and outer disk sides of the back plate 7b.

  The shim plates 8 on the action part side and the reaction part side prevent brake noise during braking and uneven wear of the lining 7a, and are formed of a thin metal plate such as stainless steel having a relatively low thermal conductivity. A hanging portion 8a having an outer edge shape that follows the outer edge shape of the hanging piece 7c of the back plate 7b is provided, and the hanger pin 9 is inserted into the hanging portion 8a. The outer edge of each shim plate 8 on the inner periphery side and the outer periphery side of the disk is formed in the same outer edge shape as the outer periphery portion on the inner periphery side and the outer periphery side of the disk of the back plate 7b. A plurality of claw pieces 8b are provided on the outer edge portion on the outer peripheral side and the outer edge portion on the disk delivery side.

  Further, the shim plate 8 on the action side cuts and raises a part of the plate material arranged inside the piston 10a provided on the disk delivery side, and gradually protrudes toward the disk rotor side toward the disk delivery side. The shim plate 8 on which the first pressing piece 8c (the pressing piece of the present invention) is formed and disposed on the reaction portion side is provided with a reaction force claw 6i provided on the disk delivery side and a reaction force adjacent to the reaction force claw 6i. A part of the plate material disposed between the force claws 6k is cut and raised to form a second pressing piece 8d (the pressing piece of the present invention) which gradually protrudes toward the disk insertion side and protrudes toward the disk rotor side. Yes.

  The insulator 12 and the shim plate 8 superimpose the insulator 12 on the back surface of the friction pad 7 and overlap the shim plate 8 on the outer side of the insulator 12 so that the plurality of claw pieces 8b of the shim plate 8 are backed. By being engaged with the outer edge portion of 7b, it is integrally attached to the back plate 7b. The friction pads 7 and 7 to which the insulator 12 and the shim plate 8 are attached are suspended so as to be movable in the disk axial direction by inserting the hanger pins 9 through the suspension pieces 7c and the suspension portions 8a and 12a.

  Further, the friction pad 7 on the action part side is brought into contact with the disk delivery side by bringing the first pressing piece 8c of the shim plate 8 into contact with the inner circumferential surface 10c on the disk delivery side of the piston 10a on the disk delivery side. The disk feeding side end surface 7e of the ear piece 7d abuts against the torque receiving surface 3d, and the friction pad 7 on the reaction part side pushes the second pressing piece 8d of the shim plate 8 against the disk turning of the reaction force claw 6k. By abutting against the exit surface 6n, the disc is urged toward the disc delivery side, and the disc delivery side end surface 7e of the ear piece 7d abuts against the torque receiving surface 3d.

  When the pressurized hydraulic fluid is supplied to the hydraulic pressure chamber 11 during braking when the vehicle is moving forward, the vehicular disc brake 1 formed in this way moves the pistons 10a and 10b toward the cylinder hole opening side and acts. The friction pad 7 on the part side is pushed toward the disk rotor 2, and the lining 7 a of the friction pad 7 is pressed against one side of the disk rotor 2. Due to this reaction force, the caliper body 6 moves toward the action part by the guide of the slide pins 4 and 5, and the reaction force claws 6j, 6k, 6m push the friction pads 7 on the reaction part side toward the disk rotor 2. Then, the lining 7 a of the friction pad 7 is pressed against the other side of the disk rotor 2.

  During this braking, high temperature braking heat is generated in the lining 7a and this braking heat is transmitted to the back plate 7b, but the pistons 10a and 10b come into contact with the back plate 7b via the shim plate 8 and the insulator 12. The transmission of braking heat to the piston side is blocked as much as possible, and the transmission of braking heat to the reaction force claw side is also blocked as much as possible. Further, since the pistons 10a, 10b and the reaction force claws 6j, 6k, 6m abut against the back plate 7b via the shim plate 8 during braking, brake noise and uneven wear of the lining 7a are prevented during braking. Can do. Furthermore, the friction pads 7 and 7 on the action part side and the reaction part side are urged toward the disk delivery side by the first pressing piece 8c and the second pressing piece 8d, respectively, and the disk delivery side of each ear piece 7d. Since the end surface 7e is in contact with the torque receiving surface 3d, the backlash of the friction pads 7 and 7 can be suppressed. Further, since the friction pads 7 and 7 are urged toward the disk delivery side by the first pressing piece 8c and the second pressing piece 8d formed integrally with the shim plate 8, a pad spring is used as in the prior art. This is unnecessary, and the number of parts can be reduced to reduce the cost and the assembling property can be improved.

  The present invention is not limited to the above-described embodiment, and may be applied to a 2-pot piston-facing disc brake, a 4-pot or more piston-facing disc brake, and a single-pot pin-sliding disc brake. Can do.

  In addition, in the case of a four-pot or more piston-facing disc brake, the pressing piece is not limited to the one that is formed corresponding to the piston that is disposed closest to the disc delivery side, and the pressing piece that corresponds to the other piston is used. It can also be formed.

  Furthermore, in the case of a pin slide type disc brake having two or more pots, not only the above-described embodiment but also the pressing piece on the action portion side is formed corresponding to the piston arranged closest to the disc delivery side. Not limited to this, pressing pieces corresponding to other pistons can be appropriately formed. Furthermore, the pressing piece on the reaction portion side is not limited to the one formed corresponding to the reaction force claw adjacent to the reaction force claw arranged closest to the disk delivery side, and the disk entry side than the adjacent reaction force claw The pressing piece corresponding to the other reaction force nail | claw arrange | positioned in can also be formed suitably.

  Moreover, it is not restricted to what provided the torque receiving surface in the caliper bracket like the above-mentioned example, and what provided the torque receiving surface in the caliper body may be used. Further, an insulator may not be used, and the shape of the outer edge portion of the friction pad or shim plate is arbitrary.

  DESCRIPTION OF SYMBOLS 1 ... Vehicle disc brake, 2 ... Disc rotor, 3 ... Caliper bracket, 3a ... Plate-shaped part, 3b ... Pad support arm, 3c ... Pin hole, 3d ... Torque receiving surface, 3e ... Pad guide part, 4, 5 ... Slide pin, 6 ... caliper body, 6a ... action part, 6b ... reaction part, 6c ... bridge part, 6d, 6e ... body mounting arm, 6f, 6g ... hanger pin support arm, 6h, 6i ... cylinder hole, 6j, 6k , 6m ... Reaction force claw, 6n ... Disc feeding side surface, 7 ... Friction pad, 7a ... Lining, 7b ... Back plate, 7c ... Hanging piece, 7d ... Ear piece, 7e ... Disc feeding side end face, 8 ... Shim Plate, 8a ... hanging part, 8b ... claw piece, 8c ... first pressing piece, 8d ... second pressing piece, 9 ... hanger pin, 10a, 10b ... piston, 10c ... inner peripheral surface, 11 ... hydraulic chamber, 12 ... Insulator, 12a ... Hanging Part

Claims (7)

A cylinder hole opened on the disk rotor side is formed on each of a pair of working portions of a caliper body supported by a caliper bracket fixed to the vehicle body and disposed across the disk rotor, and each cylinder is formed. Insert a cup-shaped piston into the hole with the opening facing the disk rotor side, and place a pair of friction pads on both sides of the disk rotor, and attach a plate-like shim plate to the back of the friction pad In the disc brake for a vehicle, the shim plate cuts and raises a part of the plate material arranged inside the piston, and gradually protrudes toward the disc insertion side when the vehicle moves forward so as to protrude toward the disc rotor side. And pressing the friction pad toward the disk delivery side by bringing the pressing piece into contact with the inner peripheral surface of the piston on the disk delivery side. Vehicle disc brake for butterflies. A plurality of cylinder holes opened on the disk rotor side are respectively formed in a pair of action portions of a caliper body supported by a caliper bracket fixed to the vehicle body and disposed across the disk rotor, and each cylinder hole is formed. In addition, a cup-shaped piston was inserted with the opening directed toward the disk rotor side, a pair of friction pads were arranged on both sides of the disk rotor, and a plate-shaped shim plate was attached to the back of the friction pad. In the vehicle disc brake, the shim plate cuts and raises a part of the plate material arranged inside any one of the pistons, and gradually protrudes toward the disc insertion side toward the disc rotor side, thereby pressing the pressing piece. And the pressing piece is brought into contact with the inner peripheral surface on the disk entry side of any one of the pistons to bias the friction pad toward the disk delivery side. The vehicle disk brake according to claim Rukoto. Any one of the pistons is a piston arranged on the most disc delivery side when the vehicle moves forward, and the pressing piece is an inner peripheral surface on the disc introduction side of the piston arranged on the most disc delivery side. The vehicle disc brake according to claim 2, wherein the vehicle disc brake is brought into contact with the vehicle. One cylinder hole is formed in the action part of the caliper body supported by the caliper bracket fixed to the vehicle body and supported across the disk rotor, and two reaction force claws are formed in the reaction part, respectively. Further, a vehicle in which a cup-shaped piston is inserted with the opening directed toward the disk rotor, a pair of friction pads is disposed on both sides of the disk rotor, and a plate-like shim plate is attached to the back of the friction pad In the disc brake for a vehicle, the shim plate arranged on the action portion side cuts and raises a part of the plate material arranged on the inner side of the piston, and gradually approaches the disc entry side when the vehicle moves forward. A pressing piece protruding to the disk, and the pressing piece is brought into contact with the inner peripheral surface of the piston on the disk insertion side to urge the friction pad on the action part side toward the disk extraction side, The shim plate arranged on the action portion side cuts and raises a part of the plate material arranged between the two reaction force claws, and gradually approaches the disc entry side when the vehicle moves forward. A pressing piece projecting on the disk is formed, the pressing piece is brought into contact with the disk feeding side surface of the reaction force claw on the disk feeding side, and the friction pad on the reaction part side is biased toward the disk feeding side. Disc brake for vehicles. A plurality of cylinder holes are formed in the action part of the caliper body supported by the caliper bracket fixed to the vehicle body and supported across the disk rotor, and a plurality of reaction force claws are formed in the reaction part corresponding to the cylinder holes, respectively. In each cylinder hole, a cup-shaped piston is inserted with the opening facing the disk rotor side, and a pair of friction pads are arranged on both sides of the disk rotor. In the vehicle disc brake to which the shim plate is attached, the shim plate arranged on the action part side cuts and raises a part of the plate material arranged on the inner side of any one of the pistons, and faces the disk entry side. Then, the pressure piece is gradually projected to the opposite side of the disk rotor to form a pressing piece, and the pressing piece is brought into contact with the inner peripheral surface on the disk introduction side of any one of the pistons to The shim plate that urges the friction pad toward the disk delivery side and is arranged on the reaction portion side includes any one of the reaction force claws and a reaction force claw adjacent to the one reaction force claw. A portion of the plate material disposed between the two is cut and raised to form a pressing piece that gradually protrudes toward the disk insertion side toward the disk rotor side, and the pressing piece is connected to the disk rotation of the adjacent reaction force claw. A disc brake for a vehicle, wherein the disc brake for vehicles is brought into contact with an exit side surface and biases the friction pad on the reaction part side toward the disc delivery side. Any one of the pistons is a piston that is disposed closest to the disk delivery side when the vehicle is moving forward, and the pressing piece on the action portion side is the disk delivery side of the piston that is disposed closest to the disk delivery side. The one reaction force claw and the reaction force claw adjacent to the one reaction force claw are a reaction force claw arranged closest to the disk delivery side. The reaction force claw adjacent to the reaction force claw disposed on the most disc delivery side, wherein the pressing piece on the reaction part side is brought into contact with the disc delivery side surface of the adjacent reaction force claw. The vehicle disc brake according to claim 5. The vehicular disc brake according to any one of claims 1 to 6, wherein an insulator for heat insulation is disposed between the friction pad and the shim plate.

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