JP2002081473A - Disc brake device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disc brake device allowing the reduction of the weight of a mounting without increasing a manufacturing cost. SOLUTION: An inner-side torque receiving face 12d of an inner-side mounting portion 12 is provided close to a fixation center P of the mounting 11. An outer-side torque receiving face of an outer-side mounting portion is provided close to a center axis of a bridge portion 14 connected to the outer-side mounting portion and the inner-side mounting portion. An inner pad 15 has an inner- side abutment face 15d for abutting the inner-side receiving face 12d, where the inner-side mounting portion 12 abuts the inner pad 15 so that the inner-side abutment face 15d only abuts the inner-side torque receiving face 12d during braking.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc brake device.

[0002]

2. Description of the Related Art As a brake device for a vehicle, a disk brake device that applies a brake by sandwiching a disk rotor (disk) that rotates with wheels between pads (friction material) from both sides is well known. Since the pad is pressed against the rotating disk rotor, a rotational force (rotation torque) from the disk rotor is applied to the pad during braking. The disc brake device is provided with a mounting provided with a torque receiving portion for receiving the rotational force (rotation torque) applied to both pads.

FIG. 8 is a plan view of a main part showing a conventional disc brake device. FIG. 9 is a front view of a main part of the disc brake device. FIG. 10 is a perspective view of a main part showing a mounting constituting the caliper of the disc brake device.

As shown in FIG. 8, a disk brake device 50 includes a disk rotor 51 and the disk rotor 51.
, An inner pad 52 and an outer pad 53 which are opposed to each other in the axial direction, a mounting 54, and a caliper 55.

[0005] The disk rotor 51 is adapted to be rotated integrally with wheels (not shown). The inner pad 52 and the outer pad 53 are
1 and the friction members 52a, 53a
Metal back plates 52b and 53b fixed to the back side of the a and 53a (opposite to the disk rotor 51). On both sides of the back plates 52b, 53b, protrusions 52c, 53c (one protrusion 52c,
53c is shown).

As shown in FIGS. 9 and 10, the mounting 54 has a substantially U-shaped plate-like inner mounting portion 56, an outer mounting portion 57, and the inner mounting portion 56 and the outer mounting portion. And a bridge portion 58 formed between the
It is integrally formed by casting.

[0007] The inner-side mounting section 56 is shown in FIG.
As shown in FIG. 0, U-shaped both end portions 56a (only one end portion 56a is shown in FIG. 10) are formed with an inner pad groove 56b as a U-shaped inner torque receiving portion. I have. The bottom surface of the inner pad groove 56b is an inner torque receiving surface 56c. Although not shown, the distance between the two inner-side torque receiving surfaces 56c is set to be substantially the same as the distance between the tip surfaces of the two projections 52c of the inner pad 52. The projections 52c are respectively disposed in the inner pad grooves 56b so as to be guided toward the disk rotor 51 during braking and to abut against the inner torque receiving surface 56c in the rotation direction of the disk rotor 51. It has become.

Further, as shown in FIG. 9, the inner mounting portion 56 is provided with the inner pad groove 56.
The through hole 5 is provided at a predetermined position which is separated from the center of b by a distance L1.
6d are provided. The mounting 54 is fixed to a non-rotating member such as a knuckle of the vehicle by a bolt (not shown) inserted through the through hole 56d.

The outer mounting portion 57 is connected to both ends 56a of the inner mounting portion 56 via a bridge portion 58 (FIGS. 9 and 1).
At 0, only one outer mounting portion 57 is shown). And, the outer side mounting part 57
As shown in FIG. 9 and FIG. 10, both ends 56 a of the U-shaped inner mounting portion 56 are formed in substantially the same shape.

As shown in FIGS. 9 and 10, an outer-side pad groove 57a as a U-shaped outer-side torque receiving portion is formed in the outer-side mounting portion 57. The bottom surface of the outer pad groove 57a is an outer torque receiving surface 57b. Although not shown, the distance between both outer-side torque receiving surfaces 57b is set to be substantially the same as the distance between the tip surfaces of both projections 53c of the outer pad 53.

The two projections 53c are arranged in the two outer pad grooves 57a, respectively, and are guided to the disk rotor 51 side during braking.
In contact with the outer-side torque receiving surface 57b in the direction of rotation of.

The outer pad groove 57a and the inner pad groove 56b are formed at the same position on the projection in the axial direction of the bridge 58 connecting the inner mounting portion 56 and the outer mounting portion 57. I have. And conventionally, in the inner side pad groove 56b
And the outer-side pad groove 57a are simultaneously processed by broaching or the like. Moreover, the inner pad 52 and the outer pad 53 are made in the same shape and size. That is, the inner pad 52 and the outer pad 53
Are commonly used as a kind of pad.

As shown in FIG. 8, screw holes 58a having a predetermined depth toward the bridge portion 58 are provided at both ends 56a of the inner mounting portion 56. On the other hand, as shown in FIG. 8, the caliper 55 includes a cylinder portion 55a, a connection portion 55b extending from the cylinder portion 55a in the cylinder axis direction, and a tip end of the connection portion 55b, which is orthogonal to the cylinder axis direction. Claw portion 5 extending in the direction of
5c.

The disc brake device 50 is assembled as follows. As shown in FIG. 8, in the mounting 54, the inner mounting portion 56 and the outer mounting portion 57 are arranged on both sides of the disk rotor 51 while the bridge portion 58 straddles the outer peripheral side of the disk rotor 51.

As shown in FIG. 8, a bolt 60 is provided on the inner mounting portion 56 so that the connecting portion 55b of the caliper 55 straddles the mounting 54 and the outer periphery of the disk rotor 51, as shown in FIG.
Is fixed to the mounting 54 by being screwed into a screw hole 58a formed at the end 56a of the mounting member.

The back pad 52b of the inner pad 52 is fixed to the tip of a piston provided in the cylinder portion 55a (not shown). The outer pad 53 has a back plate 53b whose side surface 5 on the cylinder portion side of the claw portion 55c.
5e.

At this time, as shown in FIG.
2a and 53a are slightly separated from both side surfaces 51a and 51b of the disk rotor 51, respectively. FIG.
As shown in the figure, the projection 52c is arranged in the inner pad groove 56b, and the projection 53c is arranged in the outer pad groove 57a.

Therefore, when the piston is pushed out by the brake oil pressure during braking of the vehicle, the inner pad 5
2 is one side surface 5 of the disk rotor 51 on the cylinder side
1a, and the caliper 5
5 is moved to the cylinder side. Then, the claw portion 55c
As a result, the outer pad 53 is pressed against the other side surface 51b of the disk rotor 51 on the claw portion side. At this time, the rotating disk rotor 51 is provided with two friction materials 52a, 52 sandwiching both side surfaces 51a, 51b of the disk rotor 51.
It is braked by the frictional force with 3a.

The inner pad 52 and the outer pad 53, which try to rotate together with the disk rotor 51 by receiving the rotation torque of the disk rotor 51 during braking,
When the tip surfaces of the projections 52c and 53c abut against the inner torque receiving surfaces 56c and 57b of the inner and outer pad grooves 56b and 57a, the torque is received by the mounting 54.

[0020]

Incidentally, the inner pad groove 56b and the outer pad groove 57a are simultaneously formed in the same shape. Therefore, the torque receiving point A of the inner pad groove 56b and the outer pad groove 57a with respect to the rotational torque of the inner pad 52 and the outer pad 53 transmitted from the disk rotor 51 is obtained.
Are located at the center positions of the inner pad groove 56b and the outer pad groove 57a, as shown in FIG. At this time,
As shown in FIG. 9, a moment M1 proportional to the distance L1 is applied to the inner mounting portion 56 that receives torque from the inner pad 52. Similarly, a moment M2 proportional to the distance L2 is applied to the outer mounting portion 57 that receives torque from the outer pad 53. Here, the distance L1 is the torque receiving point A
Is the distance from the position B to the fixing center of the mounting 54, that is, the inner-side mounting portion 56 (that is, the central axis of the through hole 56d). In addition, the distance L2 is set such that the distance from the torque receiving point A to the outer
7 is the distance to the connection center C (that is, the central axis of the bridge portion 58).

Incidentally, the rigidity of the mounting 54, that is, the inner mounting portion 56 and the outer mounting portion 57, requires that the moments M1 and M2 be as small as possible.

As one countermeasure, the distance L1,
It is conceivable to reduce both L2. However, with the conventional mounting 54, the structure of the inner pad 52 and the outer pad 53, and the torque receiving method, the distances L1 and L2 cannot be reduced at the same time. That is, when the distance L1 is reduced, both the common torque receiving points A decrease and the distance L2 increases. Conversely, the distance L2
Is smaller, the common torque receiving point A is increased and the distance L1 is increased.

Therefore, the inner pad groove 56b and the outer pad groove 57a are individually used so that the inner pad groove 56b is closer to the through hole 56d and the outer pad groove 57a is closer to the center axis position C of the bridge portion 58. However, it is necessary to process the inner pad groove 56b and the outer pad groove 57a. As a result, while the structure of the mounting 54 is complicated, the inner pad 52 and the outer pad 53 cannot be commonly used. That is, it is necessary to form the inner pad 52 and the outer pad 53 in different shapes corresponding to the inner pad groove 56b and the outer pad groove 57a. This contributes to an increase in the manufacturing cost of the mounting 54, the inner pad 52, and the outer pad 53.

Therefore, the prior art has a problem in reducing the weight and cost in designing the rigidity of the mounting 54. SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a disc brake device capable of reducing the mounting weight without increasing the manufacturing cost.

[0025]

In order to solve the above-mentioned problems, the invention according to claim 1 is directed to a rotating disk rotor and an inner pad for pressing both sides of the disk rotor against both side surfaces of the disk rotor. And an outer pad, and a mounting comprising an inner-side mounting portion and an outer-side mounting portion and fixed to a non-rotating member, and the outer-side mounting portion is connected to the inner-side mounting portion via a bridge portion, In the disc brake device, the inner mounting portion and the outer mounting portion are provided with an inner torque receiving surface and an outer torque receiving surface for receiving rotation torques of the inner pad and the outer pad generated by the disc rotor during braking, respectively. The inner side torque receiving surface,
The gist is that the outer-side torque receiving surface is provided close to a fixed center of the mounting, and the outer-side torque receiving surface is provided close to a center axis of the bridge portion.

According to a second aspect of the present invention, there are provided a rotating disk rotor, an inner pad and an outer pad pressing both sides of the disk rotor against both side surfaces of the disk rotor, and an inner mounting portion and an outer mounting portion. And a mounting fixed to the non-rotating member.The outer mounting portion is connected to an inner mounting portion via a bridge portion, and the inner mounting portion and the outer mounting portion have a bridge portion. An inner-side pad guide portion and an outer-side pad guide portion having the same shape on the projection in the center axis direction, and an inner-side torque receiving surface for receiving the rotational torque of the inner pad and the outer pad generated by the disk rotor during braking, respectively; In the disc brake device provided with a fine outer side torque receiving surface, the one side surface close to the fixed center of the mounting on both sides of the inner-side pad guide portion, and the inner side torque receiving surface,
The gist is that one side surface of the bridge portion on both sides of the outer-side pad guide portion that is close to the center axis of the bridge portion is the outer-side torque receiving surface.

According to a third aspect of the present invention, in the disk brake device of the second aspect, the inner pad is provided with an inner pad guide portion guided by the inner side pad guide portion. One side on both sides of the portion is an inner contact surface for contacting the inner torque receiving surface, and the outer pad is provided with an outer pad guide portion guided by the outer pad guide portion. One side surface on both sides of the outer pad guide portion is used as an outer-side contact surface for contacting the outer-side torque receiving surface, and only the inner-side contact surface does not contact the inner-side torque receiving surface during braking. The inner pad and the inner mounting part are in contact with each other, and only the outer contact surface is Wherein the outer pad so as not to abut against the side torque receiving surface outer side mounting portion is summarized in that which is adapted to abut.

According to a fourth aspect of the present invention, in the disk brake device according to the third aspect, an outer-side contact surface for abutting other side surfaces on both sides of the inner pad guide portion with the outer-side torque receiving surface. The gist is that the inner pad and the outer pad are formed in the same shape so that the other side surfaces on both sides of the outer pad guide portion are inner side contact surfaces for contacting the inner side torque receiving surface. .

According to a fifth aspect of the present invention, in the disk brake device of the first aspect, the inner-side torque receiving surface and the outer-side torque receiving surface are simultaneously formed. .

According to a sixth aspect of the present invention, in the disk brake device according to the second aspect, the inner-side torque receiving surface, the outer-side torque receiving surface, the inner-side pad guide portion, and the outer-side pad guide portion. Are formed at the same time.

(Function) According to the first and second aspects of the present invention, the moment with respect to the fixed center of the mounting due to the torque received from the inner torque receiving surface can be reduced, and the thickness of the inner mounting portion can be reduced. The weight can be reduced. Similarly, the moment with respect to the center axis of the bridge portion due to the torque received from the outer-side torque receiving surface can be reduced,
It is possible to reduce the thickness of the outer-side mounting portion and the bridge portion, that is, to reduce the weight. As a result, it is possible to reduce the weight while maintaining the rigidity of the mounting.

According to the invention of claim 3, according to claim 2,
In addition to the operation of the invention described in the above, the inner-side contact surface abuts on the inner-side torque receiving surface while the inner pad guide portion is guided by the inner-side pad guide portion during braking, so that the inner-side mounting portion is securely The rotation torque from the inner pad can be received. Similarly, when the outer pad guide portion is guided by the outer side pad guide portion during braking, the outer side contact surface abuts on the outer side torque receiving surface, so that the outer side mounting portion securely rotates torque from the outer pad. Can be received.

According to the invention set forth in claim 4, according to claim 3,
In addition to the effects of the invention described in (1), the inner pad and the outer pad were formed in the same shape. Therefore, the manufacturing cost of the inner pad and the outer pad can be reduced.

According to the invention of claim 5, according to claim 1,
In addition to the effects of the invention described in (1), the inner-side torque receiving surface and the outer-side torque receiving surface are simultaneously formed. Therefore, the manufacturing cost of the mounting can be reduced.

According to the invention described in claim 6, according to claim 2,
In addition to the effects of the invention described in (1), the inner-side torque receiving surface, the outer-side torque receiving surface, the inner-side pad guide portion, and the outer-side pad guide portion are simultaneously formed. Therefore, the manufacturing cost of the mounting can be reduced.

[0036]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is embodied in a vehicle disk brake device will be described below with reference to the drawings. The disc brake device 10 according to the present embodiment
Differs from the prior art disc brake device 50 only in the structure of the mounting, inner pad and outer pad. Therefore, for convenience of explanation, the same reference numerals are given to parts having the same structure, detailed description thereof will be omitted, and different parts will be described in detail.

As shown in FIGS. 1 to 4, the mounting 11 of the disc brake device 10 of the present embodiment includes a plate-shaped inner mounting portion 12, an outer mounting portion 13, and the inner mounting portion 12. A bridge portion 14 is formed between the outer mounting portions 13 and is integrally formed by casting.

The inner-side mounting section 12 is shown in FIG.
As shown in FIG. 5 and FIG. 5, a pair of inner torque receiving portions 12a facing each other (only one inner torque receiving portion 12a is shown in FIGS. 3 and 5) and both inner torque receiving portions 12a are formed. Connecting part 12b that connects together
And is formed in a substantially U-shape.

The inner torque receiving portion 12a includes:
As shown in FIGS. 2, 3, and 5, an inner pad groove 12c as a U-shaped inner pad guide is formed. As shown in FIGS. 2 and 5, an upper vertical surface 12e is formed vertically upward from the opening of the inner pad groove 12c, and the lower vertical surface 12e extends downward from the opening. A vertical surface 12d is formed. In the present embodiment, the lower vertical surface 12d protrudes horizontally from the upper vertical surface 12e. The lower vertical surface 12d is an inner torque receiving surface 12d.

As shown in FIGS. 1 to 5, a through hole 12f is provided at a predetermined position of the inner mounting portion 12. The mounting 11 has the through hole 1
A bolt (not shown) penetrating 2f is fixed to a non-rotating member such as a knuckle of the vehicle. The center axis P of the through hole 12f is the fixed center of the mounting 11.

The outer mounting part 13 is
Two (with only one outer-side mounting portion 13 shown in FIGS. 1, 3 and 4) are formed in substantially the same shape as the inner-side torque receiving portion 12a. Each outer-side mounting portion 13 is connected to the inner-side torque receiving portion 12a via a bridge portion 14, and is formed in parallel with the inner-side mounting portion 12.

As shown in FIGS. 1, 3, and 4, the outer mounting portion 13 is formed with an outer pad groove 13a as a U-shaped outer pad guide. As shown in FIGS. 1 and 4, an upper vertical surface 13c is formed vertically upward from the opening of the outer-side pad groove 13a, and the lower vertical surface 13c extends downward from the opening. A vertical surface 13b is formed. In the present embodiment, the lower vertical surface 13b is
It protrudes horizontally from the upper vertical surface 13c. Moreover, the lower vertical surface 13b is the lower vertical surface 12d on the inner side.
The upper vertical surface 13c on the outer side is formed so as not to protrude further than the upper vertical surface 1c on the inner side.
2e. The upper vertical surface 13c is an outer torque receiving surface 13c.

As shown in FIGS. 1 and 2, the outer-side pad groove 13a is different from the inner-side pad groove 12c in the central axis direction of the bridge portion 14 connecting the inner-side mounting portion 12 and the outer-side mounting portion 13. It is formed at the same position on the projection.

In the present embodiment, the inner pad groove 12
c, the outer-side pad groove 13a, the inner-side torque receiving surface 12d, and the outer-side torque receiving surface 13c are formed so as to be simultaneously processed by broaching or the like.
More specifically, FIG. 4 shows a coarse material shape of the outer-side mounting portion 13 by a two-dot chain line R1, and FIG. 5 shows a coarse material shape of the inner-side torque receiving portion 12a by a two-dot chain line R2. That is, as shown in FIG. 6, in the coarse material shape, the portion where the upper vertical surface 13c of the outer mounting portion 13 is formed is the portion where the upper vertical surface 12e of the inner torque receiving portion 12a is formed (substantially, this portion). The portion protrudes further horizontally than the upper vertical surface 12e). Conversely, in the rough material shape, the portion where the lower vertical surface 12d of the inner torque receiving portion 12a is formed is the portion where the lower vertical surface 13b of the outer mounting portion 13 is formed (substantially this portion is the lower side). (The vertical surface 13b). Then, as shown in FIG. 6, the inner side torque receiving portion 12a of the inner side mounting portion 12 is formed by the processing blade 30 having a predetermined shape.
And the outer mounting part 13 is broached. Then, the upper vertical surface 12e of the inner mounting portion 12 and the lower vertical surface 13b of the outer mounting portion 13 are not machined and the inner pad groove 1 is not formed.
2c, the outer-side pad groove 13a, the inner-side torque receiving surface 12d, and the outer-side torque receiving surface 13c are simultaneously formed.

The inner pad 15 and the outer pad 16 of this embodiment are formed in the same shape, and are shown in FIGS.
As shown in FIG. 7, each of the friction members 15a, 16a and metal back plates 15b, 16b fixed to the back side of the friction members 15a, 16a. Back plate 1
On both sides of 5b, 16b, projections 15c, 16c as inner and outer pad guides which are fitted into inner and outer pad grooves 12c, 13a, respectively (only one projection 15c, 16c in FIGS. 1, 2 and 7). (Shown).

As shown in FIG. 7, an upper vertical surface 15e is formed vertically upward from the base end of the projection 15c, and the lower vertical surface 15e is formed vertically downward from the base end. The surface 15d is formed. In the present embodiment, the upper vertical surface 15e projects horizontally from the lower vertical surface 15d. Moreover, before the projection 15c fitted in the inner pad groove 12c contacts the inner surface of the pad groove 12c, the lower vertical surface 15d comes into contact with the inner torque receiving surface 12d first. . Also,
At this time, the upper vertical surface 15e is sufficiently separated from the inner-side upper vertical surface 12e. In the present embodiment, the lower vertical surface 15d that contacts the inner torque receiving surface 12d is defined as the inner contact surface 15d.

On the other hand, an upper vertical surface 16e is formed vertically upward from the base end of the projection 16c, and the lower vertical surface 1e is formed vertically downward from the base end.
6d are formed. In the present embodiment, the upper vertical surface 1
6e protrudes horizontally from the lower vertical surface 16d.
In addition, the protrusion 16 fitted into the outer side pad groove 13a
The upper vertical surface 16e comes into contact with the outer-side torque receiving surface 13c first before c contacts the inner surface of the pad groove 13a. At this time, the lower vertical surface 16d is sufficiently separated from the outer-side lower vertical surface 13b. In the present embodiment, the upper vertical surface 16e that comes into contact with the outer-side torque receiving surface 13c is the outer-side contact surface 16e.

The inner pad 15 which is to be rotated together with the disk rotor by receiving the rotation torque of the disk rotor during braking is attached to the inner side contact surface 1.
5 d contacts the inner torque receiving surface 12 d of the inner mounting portion 12, so that the torque is received by the mounting 11. As shown in FIG. 2, assuming that the contact center point between the inner contact surface 15 d and the inner torque receiving surface 12 d is a point Q, the distance between the contact center point Q and the fixed center P of the mounting 11 is The distance becomes the distance L3. This distance L3 is smaller than the distance L1 (see FIG. 9) from the position of the torque receiving point A in the related art to the fixed center B of the inner mounting portion 56. That is, in the present embodiment, the inner-side torque receiving surface 12 d of the inner-side mounting portion 12 is provided closer to the fixed center P of the mounting 11 than in the related art.

On the other hand, at the time of braking, the outer pad 16 which is intended to rotate together with the disk rotor by receiving the rotation torque of the disk rotor has its outer side contact surface 16.
When e contacts the outer torque receiving surface 13 c of the outer mounting portion 13, the torque is received by the mounting 11. As shown in FIG. 1, assuming that a contact center point between the outer-side contact surface 16 e and the outer-side torque receiving surface 13 c is a point S, the contact center point S and the central axis T of the bridge portion 14 of the mounting 11. Is the distance L4. This distance L4 is smaller than the distance L2 (see FIG. 9) from the position of the torque receiving point A in the related art to the connection center C of the outer-side mounting portion 57 (that is, the center axis of the bridge portion 58). That is, in this embodiment, the outer-side torque receiving surface 13c of the outer-side mounting portion 13 is closer to the center axis T of the bridge portion 14 that connects the outer-side mounting portion 13 and the inner-side mounting portion 12 than the conventional technology. It is provided.

Hereinafter, features of the disc brake device according to the present embodiment will be described. (1) In the present embodiment, the inner-side mounting unit 1
The second inner-side torque receiving surface 12 d is provided near the fixed center P of the mounting 11. Also, the outer-side torque receiving surface 13c of the outer-side mounting portion 13
Is provided near the center axis T of the bridge portion 14 connected to the outer-side mounting portion 13 and the inner-side mounting portion 12.

Therefore, as compared with the prior art, the moment with respect to the fixed center P of the mounting 11 due to the torque received from the inner torque receiving surface 12d can be reduced, and the thickness of the inner mounting portion 12 can be reduced, that is, the weight can be reduced. be able to. Similarly, the bridge portion 1 by the torque received from the outer-side torque receiving surface 13c.
4 with respect to the central axis T can be reduced, and the outer-side mounting portion 13 and the bridge portion 14 can be made thinner, that is, lighter. As a result, it is possible to reduce the weight while maintaining the rigidity of the mounting 11.

(2) In this embodiment, the inner pad 1
5 is provided with a projection 15c guided by the inner pad groove 12c, and the lower vertical surface 15 under the projection 15c.
d is an inner contact surface 15d for contacting the inner torque receiving surface 12d, and the inner pad 15 and the inner mounting so that only the inner contact surface 15d does not contact the inner torque receiving surface 12d during braking. The part 12 was made to abut. The outer pad 16 is provided with a projection 16c guided by the outer pad groove 13a, and the upper vertical surface 1 above the projection 16c.
6e is an outer-side contact surface 16e for contacting the outer-side torque receiving surface 13c, and the outer pad 16 and the outer-side contact surface 16e so that only the outer-side contact surface 16e does not contact the outer-side torque receiving surface 13c during braking. The mounting section 13 was brought into contact with the mounting section.

Accordingly, when the projection 15c is guided by the inner-side pad groove 12c during braking, the inner-side abutment surface 15d abuts on the inner-side torque receiving surface 12d. Can receive the rotational torque from the motor. Similarly, during braking, the projection 16c is guided by the outer side pad groove 13a while the outer side contact surface 1 is being guided.
The outer mounting portion 13 can reliably receive the rotational torque from the outer pad 16 by contacting the outer side 6e with the outer side torque receiving surface 13c.

(3) In this embodiment, the inner pad 1
The upper vertical surface 15e on the upper side of the protrusion 15c is an outer contact surface 15e for contacting the outer torque receiving surface 13c, and the lower lower vertical surface 16d below the protrusion 16c of the outer pad 16 is used as the inner torque. The inner pad 15 and the outer pad 16 were formed in the same shape so as to have an inner contact surface 16d for contact with the receiving surface 12d.

Therefore, the inner pad 15 and the outer pad 16 can be commonly used, and the inner pad 1
5 and the manufacturing cost of the outer pad 16 can be reduced.

(4) In the present embodiment, the portion where the upper vertical surface 13c of the outer mounting portion 13 is formed projects more horizontally than the portion where the upper vertical surface 12e of the inner torque receiving portion 12a is formed. And the lower vertical surface 12d of the inner torque receiving portion 12a.
Are formed more horizontally in the horizontal direction than the portion where the lower vertical surface 13b of the outer mounting portion 13 is formed.

Therefore, the inner side pad groove 12c, the outer side pad groove 13a,
Upper vertical surfaces 12e and 13c and lower vertical surfaces 12d and 13
When forming b, only the part where the inner pad groove 12c is formed, the part where the outer pad groove 13a is formed, the part where the lower vertical surface 12d is formed, and the part where the lower vertical surface 13b is formed May be simultaneously broached. As a result, processing can be performed with a small-sized broach processing apparatus with a small load as before, and it is possible to contribute to a reduction in cost that can reduce the number of processing steps.

The embodiment of the present invention is not limited to the above embodiment, but may be modified as follows. In the above embodiment, the inner pad 15 and the outer pad 16 are formed in the same shape. However, the inner pad 15 and the outer pad 16 may be formed in different shapes. In this case, effects similar to the effects described in the features (1), (2), and (4) of the above embodiment can be obtained.

In the above embodiment, the inner mounting portion 12 and the outer mounting portion 13 are provided with the inner pad groove 12c and the outer pad groove 13a, respectively, and the inner pad 15 and the outer pad 16 are respectively provided with protrusions. 15c and the projection 16c were provided, and the inner mounting portion 12 and the outer mounting portion 13 were provided with projections as inner and outer pad guide portions, respectively.
The inner pad 15 and the outer pad 16 may be implemented by providing grooves as inner and outer pad guides, respectively. In this case, substantially the same effects as those described in the features (1) to (4) of the above embodiment can be obtained.

The inner pad groove 12c and the outer pad groove 13a may be formed in a shape other than the U-shape, for example, a semicircle or a triangle. In this case, protrusion 1
If the protrusions 5c and the protrusions 16c are formed in a shape corresponding to the inner pad groove 12c and the outer pad groove 13a, substantially the same effects as those described in the features (1) to (4) of the above embodiment can be obtained. it can.

The inner-side torque receiving surface 12d of the inner-side mounting portion 12, the outer-side torque receiving surface 13c of the outer-side mounting portion 13, the inner pad groove 12c, and the outer pad groove 13a are formed by processing other than broaching. It may be carried out by processing and forming at the same time by the method. In this case, features (1) to
An effect substantially similar to the effect described in (4) can be obtained.

In the above embodiment, the inner side torque receiving surface 12d of the inner side mounting portion 12, the outer side torque receiving surface 13c of the outer side mounting portion 13, the inner side pad groove 12c and the outer side pad groove 13a are At the same time, the inner mounting portion 12 was formed by broaching or the like, but the inner side torque receiving surface 12d of the inner side mounting portion 12, the outer side torque receiving surface 13c of the outer side mounting portion 13, the inner side pad groove 12c and the outer side pad were formed. The grooves 13a may be separately formed by broaching or the like. In this case, the same effects as those described in the features (1) to (3) of the above embodiment can be obtained.

Next, technical ideas other than the claims that can be grasped from the above embodiments will be described below together with their effects. (1) An inner mounting portion (12) and an outer mounting portion (13) are provided, and the inner mounting portion (12) and the outer mounting portion (13) are provided with an inner pad (15) during braking and In the mounting (11) of the disc brake device provided with the inner torque receiving surface (12d) and the outer torque receiving surface (13c) for receiving the rotational torque of the outer pad (16), respectively, the inner mounting portion (12) An inner torque receiving surface (12d) is provided near a fixed center (P) of the mounting (11), and an outer torque receiving surface (13c) of the outer mounting portion (13) is provided.
A disc brake device mounted near the center axis (T) of a bridge portion (14) connected to the outer mounting portion (13) and the inner mounting portion (12). .

Accordingly, the weight can be reduced while maintaining the rigidity of the mounting.

[0065]

According to the first to third aspects of the present invention, the weight can be reduced while maintaining the rigidity of the mounting.

According to the invention set forth in claim 4, according to claim 3,
In addition to the effects of the invention described in (1), the manufacturing cost of the inner pad and the outer pad can be reduced. According to the fifth and sixth aspects of the present invention, the manufacturing cost of the mounting can be reduced.

[Brief description of the drawings]

FIG. 1 is a front view of a main part of a disc brake device according to an embodiment.

FIG. 2 is a rear view of a main part of the disc brake device according to the embodiment.

FIG. 3 is a perspective view of a main part of the mounting of the embodiment.

FIG. 4 is a front view of a main part of the mounting according to the embodiment.

FIG. 5 is a rear view of a main part of the mounting according to the embodiment.

FIG. 6 is an explanatory diagram of processing of a main part of the mounting according to the embodiment.

FIG. 7 is an essential part front view of the inner pad and the outer pad of the embodiment.

FIG. 8 is a plan view of a main part of a conventional disc brake device.

FIG. 9 is a front view of a main part of a conventional disk brake device.

FIG. 10 is a perspective view of a main part of a conventional mounting.

[Explanation of symbols]

11: mounting, 12: inner side mounting portion, 12c: inner side pad groove as inner side pad guide portion, 12d: inner side torque receiving surface, 13
... Outer mounting portion, 13a Outer pad groove as outer pad guide portion, 13c Outer torque receiving surface, 14 bridge portion, 15 inner pad, 15c protrusion as inner pad guide portion, 15d, 16d: inner side contact surface, 15e, 16
e: outer side contact surface, 16: outer pad, 16c
... projections as outer pad guides, 51 ... disk rotors, 51a, 51b ... both sides of the disk rotor,
P: fixed center of mounting; T: central axis of bridge.

Continued on the front page (72) Inventor Masahiko Nakajima 10 Michigami, Wakai-machi, Toyota-shi, Aichi F-Brake Industry Co., Ltd. F-term (reference) 3J058 AA43 AA48 AA53 AA63 AA69 AA73 AA77 AA87 BA46 BA62 BA65 CA47 CA58 CC03 CC83 FA01

Claims (6)

[Claims] 1. A rotating disk rotor (51), an inner pad (15) and an outer pad (16) pressed from both sides of the disk rotor (51) against both side surfaces (51a, 51b) of the disk rotor (51). ), And a mounting (11) composed of an inner-side mounting part (12) and an outer-side mounting part (13) and fixed to a non-rotating member. The outer-side mounting part (13) includes a bridge part ( 14) through the inner mounting section (1)
2), the inner-side mounting portion (12) and the outer-side mounting portion (13) receive the rotational torque of the inner pad (15) and the outer pad (16) generated by the disk rotor (51) during braking. In a disc brake device provided with an inner torque receiving surface (12d) and an outer torque receiving surface (13c) for respectively receiving the inner torque receiving surface (12d), the inner torque receiving surface (12d) is close to a fixed center (P) of a mounting (11). A disc brake device, wherein the outer-side torque receiving surface (13c) is provided close to a center axis (T) of the bridge portion (14). 2. A rotating disk rotor (51), an inner pad (15) and an outer pad (16) pressed from both sides of the disk rotor (51) against both side surfaces (51a, 51b) of the disk rotor (51). ), And a mounting (11) which is composed of an inner mounting part (12) and an outer mounting part (13) and is fixed to a non-rotating member. The outer mounting part (13) has a bridge part (14). ) Through the inner mounting section (1).
2), the inner-side mounting portion (12) and the outer-side mounting portion (13) have an inner-side pad guide portion (12c) having the same shape on the projection of the bridge portion (14) in the central axis direction; Outer pad guide (1
3a) and the disk rotor (5
1) The disc brake device provided with an inner torque receiving surface (12d) and an outer torque receiving surface (13c) for respectively receiving the rotational torque of the inner pad (15) and the outer pad (16) generated by the inner side; One side near the fixed center (P) of the mounting (11) on both sides of the pad guide (12c) is defined as the inner torque receiving surface (12d). A disc brake device, wherein one side surface of the bridge portion (14) close to the center axis (T) is the outer-side torque receiving surface (13c). 3. The disc brake device according to claim 2, wherein the inner pad (15) is provided with an inner pad guide (15c) guided by the inner pad guide (12c). One side surface (15d) on both sides of the pad guide portion (15c) serves as an inner contact surface for contacting the inner torque receiving surface (12d), and the outer pad (16) includes the outer pad. An outer pad guide section (16c) guided by the guide section (13a) is provided, and one side surface (16e) on both sides of the outer pad guide section (16c) is brought into contact with the outer side torque receiving surface (13c). And the outer side abutment surface, and only the inner side abutment surface (15d) during braking is the inner side torque receiving surface (1). 2d) and the inner pad (15) and the inner mounting portion (12) so as not to come into contact with the inner pad (15).
And the outer pad (16) and the outer mounting portion (13) so that only the outer contact surface (16e) contacts the outer torque receiving surface (13c) during braking.
Is a disc brake device characterized in that it comes into contact with the disc brake device. 4. The disc brake device according to claim 3, wherein the other side surface (15e) on both sides of the inner pad guide portion (15c) is provided on the outer side torque receiving surface (13).
c) as an outer-side abutting surface for abutting against the inner-side torque receiving surface (12) on both sides of the outer pad guide portion (16c).
A disc brake device characterized in that the inner pad (15) and the outer pad (16) are formed in the same shape so as to form an inner-side contact surface for contacting d). 5. The disc brake device according to claim 1, wherein said inner torque receiving surface (12d) and said outer torque receiving surface (13c) are simultaneously formed. Brake device. 6. The disc brake device according to claim 2, wherein the inner-side torque receiving surface (12d), the outer-side torque receiving surface (13c), an inner-side pad guide (12c), and an outer-side pad. Guide (13a)
Are simultaneously processed and formed.