JPH07127674A - Vehicle disc brake - Google Patents

Abstract

PURPOSE:To prevent a lining from being eccentrically worn by allowing a. hanger pin on the disc inlet side to receive a braking torque together with a conventional torque receiving surface on a disc outlet side so as to restrain the biehavior of a friction pad on the disc inlet side upon braking. CONSTITUTION:The distance P1 between the centers of hanger pins 10, 10 is set to be larger than the distance Ps between the centers of hanger pin insertion holes 9b formed on the disc inlet side surface 9a of a back plate 9 of a friction pad 7. The space C1 between the disc outlet side surface 9c of the back plate 9 of the friction pad 7 and a torque receiving surface 3k bearing the disc outlet side surface of the friction pad 7 is set to be equal to the space C2 between the hanger pin 10 on the disc inlet side and the disc inlet side surface 9f of a hanger pin insertion hole 9b on the disc inlet side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc brake used for traveling vehicles such as automobiles and motorcycles.
In particular, it is a hanger pin type that suspends a pair of friction pads arranged on both sides of the disc rotor with a pair of hanger pins, and the braking torque generated in the friction pads by the sliding contact with the disc rotor is transferred to the caliper body or The present invention relates to the structure of a vehicle disc brake supported by a torque receiving surface of a caliper bracket.

[0002]

2. Description of the Related Art As a conventional general vehicle disk brake, for example, there is one disclosed in JP-A-51-96973. In this disc brake, first and second arms of a caliper body are arranged on both sides of a disc rotor that rotates integrally with a wheel, and the disc rotor is sandwiched between the first and second arms. A pair of friction pads are arranged so as to face each other, and these friction pads have two hanger pins which are laid across the outer side of the disc rotor and which are hung on the first arm and the second arm. It is inserted through the hanger pin insertion holes arranged side by side in the direction, and is movably suspended in the disc axial direction.

In the hanger pin insertion hole formed in the back plate of the friction pad, the distance between the two centers is formed to be the same as the distance between the centers of the hanger pins, and in addition to the shaft diameter of the hanger pin, It is formed in a long shape or a large diameter hole with a slight margin at least in the disc circumferential direction, and when the friction pad during braking moves to the disc extension side by sliding contact with the disc rotor, The disc feeding side of the plate
It is adapted to be supported on a torque receiving surface provided on one or both of the caliper body and the caliper bracket.

[0004]

As described above, the friction pad during braking is supported by the rigid body such as the caliper body or the caliper bracket on the disc spill-out side, whereas the disc spill-in side is simply a hanger pin. Since it is only suspended, the disc entry side tilts toward the disc rotor side with the disc entry side as a fulcrum, and is dragged in the direction of rotation of the disc rotor. However, there is a problem that it wears earlier than other parts.

In particular, when an excessive braking torque is generated due to sudden braking or the like, the uneven wear of the lining is further increased, and the torque receiving surface of the caliper body, the caliper bracket, etc., and the torque of the disk-protruding side surface of the back plate, etc. It is not preferable because excessive stress is concentrated on the transmission part.

Therefore, according to the present invention, in addition to the conventional torque receiving surface, the braking torque of the friction pad is also received by the hanger pin on the disc entry side, so that the behavior of the friction pad is suppressed and the uneven wear of the lining and the torque. An object of the present invention is to provide a vehicle disc brake capable of preventing stress concentration on a transmission portion.

[0007]

In order to achieve the above object, in the first invention, the first arm and the second arm of the caliper body are arranged on both sides of a disk rotor which rotates integrally with a wheel, and Between the first arm and the second arm, a pair of hanger pin insertion holes are provided side by side in the disk circumferential direction on the upper part of the back plate of the friction pad opposed to each other with the disk rotor interposed therebetween. A pair of hanger pins that span the outer side of the disc rotor and are hung on the first arm and the second arm to hang both friction pads movably in the disc axial direction. A disc brake for a vehicle, wherein a torque receiving surface is formed by sandwiching a back plate of the friction pad on a body and / or a caliper bracket interposed between the caliper bracket and a vehicle body,
The center-to-center distance P1 of the hanger pin is set wider than the center-to-center distance P2 of the hanger pin insertion hole, and the hanger pin on the disk insertion side and the disk insertion side of the hanger pin insertion hole on the disk insertion side also. And the distance C1 between
The distance C2 between the disc feeding side surface of the back plate and the torque receiving surface that supports the disc feeding side surface during braking is set to be the same length.

As a second invention, the first arm and the second arm of the caliper body are arranged on both sides of a disk rotor which rotates integrally with a wheel, and the first arm and the second arm are disposed between the first arm and the second arm. A pair of hanger pin insertion holes are arranged side by side in the disc circumferential direction in the upper portion of the back plates of the friction pads that are arranged opposite to each other with the disc rotor interposed therebetween, and the first hanger pin insertion holes straddle the outer side of the disc rotor. A pair of hanger pins that are hung on the arm and the second arm are inserted to suspend both friction pads so as to be movable in the disc axial direction, and between the caliper body and / or the caliper bracket and the vehicle body. In a vehicle disc brake in which a torque receiving surface is formed by sandwiching a back plate of the friction pad on an inserted caliper bracket, the center distance P1 of the hanger pins is set to the hanger pin insertion position. The width C is set wider than the center distance P2 of the holes, and the distance C3 between the hanger pin on the disc insertion side and the disc insertion side of the hanger pin insertion hole on the disc insertion side is set to the disc ejection side of the back plate. C and the torque receiving surface that bears the disk feeding side surface at the time of braking
The length is set to 2 by adding the amount of flexural deformation of the torque transmitting member such as the caliper body, the caliper bracket, and the back plate due to the transmission of the braking torque in the disc feeding direction.

[0009]

When the braking action is performed in the first aspect of the invention, the friction pad moves the length of the gap C2 with the torque receiving surface to the disc feeding side, and the side surface of the back plate on the disc feeding side is the torque receiving surface. At the same time when the disk comes into contact with the disk, the disk entry side of the hanger pin insertion hole on the disk entry side has a gap C on the disk entry side.
While moving in the gap C1 having the same length as 2, it moves to the disc feeding side and contacts the hanger pin on the disc feeding side.

As described above, the braking torque generated in the friction pad by sliding contact with the disc rotor is transmitted from the disc feeding side to the torque receiving surface, and is also shared by the hanger pin from the disc feeding side. Also, on the disc entry side, the hanger pin insertion hole is pressed against the hanger pin,
The behavior of the friction pad on the disc entry side is suppressed similarly to the disc entry side.

In the second invention, the friction pad at the time of braking is
The gap C2 from the torque receiving surface is moved to the disc spilling side, the side surface of the back plate on the disc spilling side abuts the torque receiving surface, and the torque transmitting members such as the caliper body, the caliper bracket, and the back plate are After being flexibly deformed in the disc turning-out direction by transmission of the braking torque, the disc turning-in side surface of the hanger pin insertion hole on the disc turning-in side moves to the disc turning-out side while filling the gap C3, and Contact the hanger pin.

In the configuration of the second aspect of the invention, the behavior of the friction pad on the disc entry side is suppressed as in the first aspect of the invention. In addition, most of the braking torque is transmitted from the disc advancing side to the torque receiving surface, and on the disc advancing side of the friction pad, a part of the remaining braking torque is transmitted to the hanger pin on the disc advancing side. Since the hanger pin on the disc entry side only bears a part of the braking torque, even if an excessive braking torque is generated on the friction pad due to sudden braking,
It does not overload the hanger pin on the disc entry side or interfere with the movement of the friction pad in the disc axial direction.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. The disc brake 1 includes a disc rotor 2 that rotates integrally with a wheel in the direction of arrow A, a caliper body 3 attached to the vehicle body at one side of the disc rotor 2, and both sides of the disc rotor 2 when the vehicle travels forward. It has a pair of friction pads 7 and 7 arranged to face each other.

The caliper body 3 has two connecting bolts 4, 4 for connecting the disk inflow side and the outflow side of the caliper halves 3a, 3b divided at the center of the bridge portion 3e straddling the outer circumference of the disk rotor 2. Caliper half 3
a and 3b, the pistons 6 are respectively inserted in the cylinder holes 5 and 5 formed so as to face the first arm 3c and the second arm 3d, and one caliper half 3a is one of the disc rotors 2. First arm 3c and bridge portion 3 arranged on the side
and half of e, and the other caliper half 3b is
It is composed of a second arm 3d arranged on the other side of the disc rotor 2 and half of the bridge portion 3e.

On the disk rotor side of the first arm 3c and the second arm 3d, pad mounting recesses 3f and 3f are formed in the cylinder holes 5 respectively.
Is continuously provided on the front side of the above and the inside of the ceiling opening 3g formed at the center of the bridge portion 3e in the radial direction of the disc. The friction pads 7, 7 are provided in these pad mounting recesses 3f, 3f. The disk rotors 2 are arranged so as to face each other. Each of the friction pads 7 has a lining 8 that is in sliding contact with the side surface of the disc rotor 2 and a pair of hanger pins 10 and 10.
And a back plate 9 held by the back plate 9. Suspending pieces 9a, 9a are provided on both sides of an upper portion of the back plate 9 so as to project from the two hanging pieces 9a, 9a. , 9b
Are arranged side by side in the disk circumferential direction.

On the outer surfaces of the first arm 3c and the second arm 3d in the radial direction of the disc, a pair of ridges 3h are provided so as to sandwich the ceiling opening 3g, and the ridges 3h are used for attaching hanger pins. A stop hole 3i is formed coaxially in the disc axial direction, and the hanger pins 10, 10 are inserted into the locking holes 3i, 3i on both sides to insert the front end side and the base end side into the first arm 3c and the first arm 3c. It is hung on two arms 3d. Each of the friction pads 7 has the hanger pins 10 and 10 described above, and the hanger pin insertion holes 9 of the back plate 9.
They are inserted into b and 9b, suspended in the pad mounting recesses 3f so as to be movable in the disc axial direction, and also inserted into and removed from the pad mounting recesses 3f through the ceiling opening 3g.

The hanger pin 10 is formed in a circular cross section, and the hanger pin insertion hole 9b is formed in a horizontally elongated circular shape that is long in the disc circumferential direction. The center distance P1 between the hanger pins 10 and 10 is the hanger pin insertion hole 9b. , 9b are formed wider than the center distance P2 between the hanger pins 1 and 9b.
No. 0 is eccentrically inserted into the respective hanger pin insertion holes 9b toward the disk turn-in side or the turn-out side.

The disk entry side and the disk exit side of the pad mounting recess 3f are torque receiving surfaces 3j and 3k for bearing the braking torque from the friction pads 7 and 7, and the torque receiving surfaces 3j and 3k. Are each provided with a retainer / pad spring 11. The retainer / pad spring 11 is laid over the torque receiving surfaces 3j and 3k, and the disk entrance side surface 3m and the disk exit side surface 3n of the ceiling opening 3g continuous to the outside thereof.
And a pad spring portion 11b projecting inward from the retainer portion 11a in the radial direction of the disc and corrugated on the inner surface of the friction pad 7.

Between the retainer portions 11a, 11a laid on the disc turn-in side and the disc turn-out side, each friction pad 7 is provided with a disc turn-in side surface 9c and a turn-out side surface 9d of the back plate 9.
When the lining 8 of the friction pad 7 is slidably brought into contact with the disc rotor 2 which is housed with a gap between the disc rotor 2 and the disc rotor 2 which rotates in the direction of arrow A when the vehicle is traveling forward, the friction pad 7 will move out the disc. The disk extending side surface 9d of the back plate 9 is supported on the torque receiving surface 3k via the disk extending side retainer portion 11a.

The back plate 9 of the friction pad 7 is pressed against the inner side surface 9e of the tip ends of the pad spring portions 11b and 11b, so that the friction pad 7 is rattled due to the running vibration of the vehicle and the disc outside during braking. The upward lifting is restrained by the elastic force of the pad spring portions 11b, 11b.

Hanger pin insertion hole 9b on the disk entry side
The distance C1 between the disc turning-in side surface 9f and the disc turning-in side hanger pin 10 inserted therethrough is equal to the disc turning-out side surface 9d of the back plate 9 and the disc taking-out side retainer portion 1
It is set to have the same length as the distance C2 with respect to 1a, and at the time of the above-mentioned braking, the disk feeding side surface 9d of the back plate 9 fills the distance C2 and contacts the retainer portion 11a on the disk feeding side, and at the same time, The disc turning-in side surface 9f of the turning-in side hanger pin insertion hole 9b abuts the hanger pin 10 on the disc turning-in side. In this embodiment, since the retainer portion 11a is laid on the torque receiving surface 3k on the disc delivery side, and this retainer portion 11a serves as a torque receiving surface for directly supporting the disc delivery side surface 9d of the back plate 9.
The distance C2 between the back plate 9 and the disk feeding side surface 9d is set between the retainer portion 11a and the space C2 as described above.

As a result, the braking torque generated in the friction pad 7 due to the sliding contact with the disc rotor 2 is transmitted from the disc feeding side surface 9d of the back plate 9 through the retainer portion 11a to the torque receiving surface 3k, and The disc insertion side surface 9f of the insertion side hanger pin insertion hole 9b is supported by the hanger pin 10 on the disk insertion side.

The present embodiment is constructed as described above, and the braking torque generated on the friction pad 7 during braking is applied to the hanger pin 10 on the disk entry side in addition to the conventional disk entry side. Will be shared. On the disc advancing side of the friction pad 7, the disc advancing side surface 9f of the hanger pin insertion hole 9b is pressed against the hanger pin 10. Therefore, the behavior of the friction pad 7 on the disc advancing side is the same as that of the disc advancing side. Suppressed.

Therefore, when the lining 8 of the friction pad 7 is brought into sliding contact with the side surface of the disc rotor 2, the disc entry side of the lining 8 tilts toward the disc rotor with the disc entry side as a fulcrum, and the disc rotor rotates. The leading effect of being dragged in the direction is less likely to occur,
The lining 8 can be worn evenly.

5 and 6 show another embodiment of the present invention, in which the center distance P1 between the hanger pins 10 and 10 is shown.
And the center-to-center distance P2 of the hanger pin insertion holes 9b, 9b are set to the relationship of distance P1> distance P2 as in the above-described embodiment, and the disc extension side surface 9d of the back plate 9 is
With respect to the distance C2 with respect to the retainer portion 11a on the disk ejection side, the distance C3 between the disk insertion side 9f of the hanger pin insertion hole 9b on the disk insertion side and the hanger pin 10 on the disk insertion side inserted therethrough. Is the interval C2 <the interval C
3, that is, the interval C3 = the interval C2 + α is set.

The above-mentioned α is due to the transmission of the braking torque when the disk receiving side surface 9d of the back plate 9 is supported by the disk receiving side torque receiving surface 3k through the retainer portion 11a during braking. The amount of bending deformation of the caliper body 3 and the torque transmitting member such as the back plate 9 in the disc running direction,
The length within the range of the maximum flexural deformation amount of these torque transmission members is added to the same length as the distance C2 on the disk feeding side.

In this embodiment, the distance C3 on the disc entry side is set.
However, since it is set to be longer than the interval C2 on the disc payout side, the braking action causes the disc payout side surface 9d of the back plate 9 to
The torque transmitting member such as the caliper body 3 and the back plate 9 hits the retainer portion 11a on the disc feeding side first, and is flexibly deformed by the length α in the disc feeding direction by the transmission of the braking torque, and then the disc feeding side. Hanger pin insertion hole 9b
The disk entrance side 9f comes into contact with the hanger pin 10, and the disk entrance side of the friction pad 7 is
It comes to be supported by 0.

In the structure according to the present embodiment, the braking torque of the friction pad 7 is mainly supported by the torque receiving surface 3k on the disc advancing side, and a part of the rest of the braking torque is on the hanger pin insertion hole on the disc advancing side. It is transmitted by the contact between 9b and the hanger pin 10. In this embodiment, the friction pad 7
While preventing the disc turn-in side from falling toward the disc rotor 2 side, the braking torque transmitted from the hanger pin insertion hole 9b on the disc turn-in side to the hanger pin 10 is small, so that the hanger pin insertion hole 9b Hanger pin 10
Since the frictional force and the load on the pin 10 can be suppressed to a low level, the friction pad 7 can be smoothly moved in the disc axial direction, and particularly, an excessive braking torque generated by sudden braking or braking on a steep downhill. Suitable as a structure corresponding to.

In both of the above-mentioned embodiments, the description has been made on the forward traveling state of the vehicle in which the disk rotor 2 rotates in the direction of arrow A, but in these embodiments, the disk turn-in side and the turn-out side are symmetrical. Since the disc torque is formed, when the vehicle is backed up in which the disc rotor 2 rotates in the direction opposite to the arrow A, the same effect as described above is achieved, although the braking torque generated is small.

Further, in both the embodiments, the retainer portion laid on the torque receiving surface on the disc delivery side has a space C2 between the retainer portion and the disc delivery side surface of the back plate, so that this retainer portion is a substantial torque receiving surface. However, in the configuration in which the retainer is omitted, the space C2 is set between the torque receiving surface on the disk delivery side and the disk delivery side surface of the back plate.

Further, in both embodiments, since the caliper body is of the piston facing type, the torque receiving surfaces for receiving the respective friction pads are provided on the caliper body at the side portions of the disc rotor. To
In the pin slide type in which a caliper bracket fixed to a vehicle body is supported through a pair of slide pins, a torque receiving surface is divided into a caliper bracket and a caliper body, and both torque receiving surfaces are caliper brackets. The present invention can be applied to any type.

[0032]

As described above, according to the configurations of the first and second aspects of the invention, the braking torque of the friction pad is reduced by the contact between the hanger pin insertion hole on the disc entry side and the hanger pin.
In addition to the conventional disk feeding side, it is supported not only on the disk feeding side but also on the leading side that the disk feeding side of the friction pad slides in the direction of rotation of the disk rotor while tilting toward the disk rotor side. It is less likely to occur and the lining can be worn evenly.

Further, in the structure of the second invention, the main transmission of braking torque is carried out on the disc feeding side of the friction pad,
The braking torque that is transmitted from the hanger pin insertion hole on the disc insertion side to the hanger pin on the disc insertion side becomes a part of the rest, so the frictional force between the hanger pin insertion hole on the disc insertion side and the hanger pin is kept small. Since the load on the hanger pin on the disc entry side is kept low,
The friction pad can be smoothly moved in the disc axial direction, and is particularly suitable as a structure that can cope with an excessive braking torque generated by sudden braking or braking on a steep downhill.

[Brief description of drawings]

1 is a cross-sectional front view of a disc brake showing an embodiment of the present invention taken along the line I-I in FIG.

FIG. 2 is a sectional front view of the disc brake showing a state where braking is performed from FIG.

FIG. 3 is a sectional view taken along the line III-III in FIG.

FIG. 4 is a partial cross-sectional plan view of FIG.

FIG. 5 is a sectional front view of a disc brake showing another embodiment of the present invention.

FIG. 6 is a sectional front view of the disc brake showing a state where braking is performed from FIG.

[Explanation of symbols]

1 ... Disc brake 2 ... Disc rotor 3 ... Caliper body 3a, 3b ... Caliper half 3c ... First arm 3d ... Second arm 3e ... Bridge part 3f ... Pad mounting recess 3g ... Ceiling opening 3j ... Disc entry side Torque receiving surface 3k ... Torque receiving surface on the disc feeding side 4 ... Connecting bolt 7 ... Friction pad 8 ... Lining 9 ... Back plate 9a ... Hanging piece 9b ... Hanger pin insertion hole 9c ... Disc entry side 9d ... Disc extension Side surface 9f ... Disc entry side surface of hanger pin insertion hole 9b 10 ... Hanger pin 11 ... Retainer / pad spring 11a ... Retainer portion 11b ... Pad spring portion P1 ... Distance between centers of hanger pins 10 and 10 P2 ... Hanger pin insertion hole 9b , 9b center distances C1, C3 ... Hanger pin insertion hole 9b on the disk entry side
Between the disc turning-in side surface 9f and the hanger pin 10 on the disc turning-in side that is inserted therethrough C2 ... The distance between the disc turning-out side surface 9d of the back plate 9 and the retainer portion 11a on the disc turning-out side

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[Procedure amendment]

[Submission date] January 11, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be amended] Claims

[Correction method] Change

[Correction content]

[Claims]

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0007

[Correction method] Change

[Correction content]

[0007]

In order to achieve the above object, in the first invention, the first arm and the second arm of the caliper body are arranged on both sides of a disk rotor which rotates integrally with a wheel, and Between the first arm and the second arm, a pair of hanger pin insertion holes are provided side by side in the disk circumferential direction on the upper part of the back plate of the friction pad opposed to each other with the disk rotor interposed therebetween. A pair of hanger pins that span the outer side of the disc rotor and are hung on the first arm and the second arm to hang both friction pads movably in the disc axial direction. a caliper bracket which is interposed between the body and / or the caliper body and the vehicle body, a vehicle disc brake forming a torque receiving surface across the back plate of the friction pad, the center of the hanger pin The distance P1 is set wider than the center distance P2 of the hanger pin insertion holes, and the distance C1 between the hanger pin on the disc insertion side and the disc insertion side of the hanger pin insertion hole on the disc insertion side is The distance C2 between the disc feeding side surface of the back plate and the torque receiving surface that supports the disc feeding side surface during braking is set to be the same length.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0008

[Correction method] Change

[Correction content]

As a second invention, the first arm and the second arm of the caliper body are arranged on both sides of a disk rotor which rotates integrally with a wheel, and the first arm and the second arm are disposed between the first arm and the second arm. A pair of hanger pin insertion holes are arranged side by side in the disc circumferential direction in the upper part of the back plate of the friction pads that are arranged opposite to each other with the disc rotor interposed therebetween, and the first hanger pin insertion holes straddle the outer side of the disc rotor. A pair of hanger pins that are hung on the arm and the second arm are inserted to suspend both friction pads so as to be movable in the disc axial direction, and between the caliper body and / or the caliper body and the vehicle body. In a vehicle disc brake in which a torque receiving surface is formed by sandwiching a back plate of the friction pad on an intervening caliper bracket, the center distance P1 of the hanger pins is set to the hanger pin insertion hole. The distance C3 between the hanger pin on the disc entry side and the disc entry side of the hanger pin insertion hole on the disc entry side is set to be wider than the center-to-center distance P2 and the disc exit side of the back plate. The distance C2 between the disc extension side surface and the torque receiving surface that supports the side surface during braking.
Further, the length is set by adding the amount of flexural deformation of the torque transmitting member such as the caliper body, the caliper bracket, and the back plate due to the transmission of the braking torque in the disc payout direction.

Claims (2)

[Claims] 1. A first and a second arm of a caliper body are arranged on both sides of a disk rotor that rotates integrally with a wheel, and the disk rotor is sandwiched between the first arm and the second arm. , A pair of hanger pin insertion holes are arranged side by side in the disc circumferential direction in the upper part of the back plate of the friction pad, and the first arm and the second arm are provided in the hanger pin insertion holes straddling the outer side of the disc rotor. A pair of hanger pins that are hung on the arm are inserted to suspend both friction pads so as to be movable in the disc axial direction, and are interposed between the caliper body and / or the caliper bracket and the vehicle body. In a vehicle disc brake in which a back plate of the friction pad is sandwiched between the caliper brackets to form a torque receiving surface, the center distance P1 of the hanger pins is set to the center distance P2 of the hanger pin insertion holes. The width C1 is set wider than that of the hanger pin on the disc insertion side, and the distance C1 between the hanger pin insertion hole on the disc insertion side and the disc insertion side of the disc insertion side is the same as the disc ejection side of the back plate and the disc ejection side. A disc brake for a vehicle, characterized in that a side surface is set to have the same length as a distance C2 from a torque receiving surface which is supported during braking. 2. A caliper body has a first arm and a second arm arranged on both sides of a disk rotor that rotates integrally with a wheel, and the disk rotor is sandwiched between the first arm and the second arm. , A pair of hanger pin insertion holes are arranged side by side in the disc circumferential direction in the upper part of the back plate of the friction pad, and the first arm and the second arm are provided in the hanger pin insertion holes straddling the outer side of the disc rotor. A pair of hanger pins that hang around the arm are inserted to suspend both friction pads so as to be movable in the disc axial direction, and are interposed between the caliper body and / or the caliper bracket and the vehicle body. In a vehicle disc brake in which a back plate of the friction pad is sandwiched between the caliper brackets to form a torque receiving surface, the center distance P1 of the hanger pins is set to the center distance P2 of the hanger pin insertion holes. The width C is set wider than that of the disk insertion side, and the distance C3 between the hanger pin on the disk insertion side and the disk insertion side of the hanger pin insertion hole on the disk insertion side is set to the disk extension side of the back plate and the disk extension side. To the distance C2 between the side surface and the torque receiving surface that is supported during braking, the amount of bending deformation of the torque transmitting member such as the caliper body, the caliper bracket, and the back plate due to the transmission of the braking torque in the disc feeding direction is added. A disc brake for vehicles that is characterized by being set.