JPH1163033A - Disc brakes for vehicles - Google Patents

Abstract

(57) Abstract: A disk constituting a disk brake is supported on a non-rotating member side of a vehicle in a non-rotating state, thereby increasing an effective disk radius and improving fuel efficiency of the vehicle. Disclosed are disks (11, 12), annular bases (13, 14) disposed opposite the radially outer side surface, and disks (11, 12) disposed on the side surfaces of the disks (11, 12) to oppose the side surfaces of the bases (13, 14). Pads 15 and 16 are provided.
16 is a vehicle disc brake for braking wheels by pressing the base 16 against the side surfaces of the bases 13 and 14.
Are supported on the non-rotating member side of the vehicle in a non-rotating state, and the bases 13 and 14 are supported on the rotating member side of the vehicle so as to be integrally rotatable.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art As disclosed in Japanese Patent Application Laid-Open No. Hei 6-32210, for example, a disk brake for a vehicle is supported by wheels in a non-rotating state and is rotated on the both sides of a disk (disk rotor) integrally with the wheels. It is common to press the pad against the surface to brake the wheel.

[0003]

In the disk brake having the above-mentioned structure, since the disk is supported on the wheel side, the sliding contact portion (effective disk radius) of the pad on the side surface of the disk is limited. It is difficult to increase the braking force by increasing the effective disc radius.
Further, the disk has a considerably large diameter and a large weight, and it is not preferable to rotate such a disk integrally with the wheels from the viewpoint of improving the fuel efficiency of the vehicle.

Accordingly, an object of the present invention is to increase the effective disk radius by supporting the disk constituting the disk brake on the non-rotating member side of the vehicle in a non-rotating state.
And to improve the fuel efficiency of the vehicle.

[0005]

The present invention relates to a disk brake for a vehicle, and a first disk brake for a vehicle according to the present invention is disposed so as to face a disk and a radially outer side surface of the disk. And a pad disposed on a side surface of the disk and facing the side surface of the base, wherein the disk is a vehicle disk brake that presses the pad against the side surface of the base to brake wheels. The pad is supported on the non-rotating member side in a non-rotating state, and the pad is supported on the rotating member side of the vehicle so as to be integrally rotatable.

A second vehicle disk brake according to the present invention includes a disk, a base disposed to face a radially outer side surface of the disk, and a disk disposed on a side surface of the base. A disk brake for a vehicle, comprising a pad facing the side surface of the disk, and pressing the pad against the side surface of the disk to brake a wheel, wherein the disk is supported on a non-rotating member side of the vehicle in a non-rotating state, and The pad is supported on the rotating member side of the vehicle so as to be integrally rotatable.

In these disc brakes according to the present invention, the disc can be supported on an axle housing, and the base can be supported on a tire wheel.

[0008]

In these disc brakes according to the present invention, by moving the disc to the side of the base, the disc or the pad arranged on the base is pressed against the base or the side of the disc for sliding contact. Let
Thereby, the rotation of the rotating base and the rotating member supporting the base can be prevented, and the wheel that is the rotating member or the wheel that supports the rotating member so as to be able to rotate integrally can be braked.

According to these disc brakes of the present invention, since the disc is supported on the non-rotating member side of the vehicle in a non-rotating state, the pad can be located at the outermost periphery on the side face of the disc. As a result, the braking force can be increased by increasing the effective disk radius of the disk, and the heavy disk serves as a non-rotating member, thereby improving the fuel efficiency of the vehicle.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 schematically shows an example of a disc brake according to the present invention. The disc brake 10
Are two disks 11, 12 and two bases 13,
14 and pads 15 and 16 attached to the outer peripheral edges of the outer surfaces of the disks 11 and 12, respectively, and a plurality of pressing means 17 and 18.

Each of the discs 11 and 12 has a disk shape, and the inner disc 11 is supported integrally with the axle housing 21 of the vehicle and movably inward and outward.
The outer disk 12 is axle housing 21
The discs 11 and 12 are supported integrally with the inner disc 11 so as to be able to advance and retreat with respect to the inner disc 11.

Each of the bases 13 and 14 has an annular shape.
The inner base 13 is fixedly supported so as to be integrally rotatable while maintaining a predetermined width interval on the inner peripheral side of the tire wheel 22, and the inner base 13 is positioned outside the inner disc 11 with a predetermined interval therebetween, and The outer base 14 is located outside the outer disk 12 with a predetermined space therebetween. Each of the bases 13 and 14 faces the outer peripheral edge of each of the disks 11 and 12 over a predetermined width.

Each of the pads 15, 16 has an annular shape.
The inner pad 15 is attached to the outer surface of the inner disk 11 and faces the inner base 13, and the outer pad 16 is attached to the outer surface of the outer disk 11 and faces the outer base 14.

Each of the pressing means 17, 18 is the same as a conventional caliper, and as shown in FIG.
18a and pistons 17b and 18b,
It is arranged on these outer peripheral edges between the first and second parts.

In the disk brake 10 having such a configuration, the cylinder portions 17a, 18 of the respective pressing means 17, 18 are provided.
a by applying hydraulic pressure to each piston 17b, 1
8b moves forward and presses the inner disk 11, and the caliper mount on which the cylinder portions 17a and 18a are formed retreats toward the outer disk 12 by the reaction force.
The outer disk 12 is pressed. As a result, both discs 11 and 12 move in the direction away from each other, and press the pads 15 and 16 against the bases 13 and 14 to make sliding contact with each other to brake the wheels.

According to the disc brake 10, since the discs 11, 12 are supported in a non-rotating state on the axle housing 21 side, which is a non-rotating member of the vehicle, the pads 15, 16 are connected to the respective discs 15, 16. The disks 11 and 12 can be positioned at the outermost periphery on the side surfaces of the disks 11 and 12, so that the effective disk radius R1 of each of the disks 11 and 12 can be increased to increase the braking force. As a rotating member, fuel efficiency of the vehicle can be improved.

FIG. 3 is a schematic diagram corresponding to FIG. 1 of a conventional disc brake, wherein the effective disc radius of the disc in the disc brake is R2, and R2 <R1. In FIG. 3, reference numeral 1 denotes a disk,
Reference numeral 2 denotes a caliper, reference numeral 3 denotes a tire wheel, and reference numeral 4 denotes a desk wheel.

FIG. 4 shows the disc brake 1 shown in FIG.
The disk brake 10a in which 0 is modified is shown.
In the disc brake 10a, each disc 1
The disc brake 10 is different from the disc brake 10 in that the pads 1 and 12 are disposed with the bases 13 and 14 interposed therebetween, and in relation to this, the pads 15 and 16 and the caliper 17 are disposed. The configuration is the same as that of the disc brake 10 in the point of the configuration.

That is, in the disc brake 10a, the inner pad 15 is
The outer pad 16 is attached to the inner surface of the outer disc 12 and is opposed to the outer surface of the outer base 14. The caliper 17 is disposed so as to straddle the outer peripheral edges of the disks 11 and 12.

In the disc brake 10a having such a configuration, when hydraulic pressure is applied to the caliper 17, the piston 17b advances to press the outer disc 12, and the reaction force causes the caliper mount 17c on which the cylinder portion 17a is formed. Advances toward the inner disk 11 and presses the disk 11. As a result, both disks 11, 12
Moves to the bases 13 and 14 side, and the pads 15 and 1
6 is pressed against the outer surfaces of the bases 13 and 14 to make sliding contact, thereby braking the wheels.

In the disc brake 10a, since the discs 11, 12 are supported in a non-rotating state on the axle housing, which is a non-rotating member of the vehicle, the pads 15, 16 are connected to the discs 11, 12, respectively. 12 can be positioned at the outermost periphery on the side surface of the disk 12, and the effective disk radius of each disk 11, 12 can be increased to increase the braking force. As a result, the fuel efficiency of the vehicle can be improved.

[Brief description of the drawings]

FIG. 1 is a schematic cross-sectional plan view (a) of a disc brake according to an example of the present invention, and a schematic front view (b) of the disc brake.

FIG. 2 is a schematic explanatory view illustrating an operation state of the disc brake.

FIG. 3 is a schematic cross-sectional plan view corresponding to FIG. 1A of a conventional disc brake.

FIG. 4 shows a disc brake according to a modification of the present invention.
FIG. 4 is a schematic cross-sectional plan view corresponding to FIG.

[Explanation of symbols]

10, 10a: disk brake, 11, 12: disk, 13, 14: base, 15, 16: pad, 17,
18 ... caliper, 17a, 18a ... cylinder part, 17
b, 18b: piston, 17c: caliper mount, 2
1. Axle housing, 22 ... tire wheel.

Claims (3)

[Claims] 1. A disk, comprising: a disk-shaped base arranged opposite to a radially outer side surface of the disk; and a pad arranged on a side surface of the disk and opposed to a side surface of the base. A disc brake for a vehicle that brakes wheels by pressing against a side surface of the base, wherein the disc is supported in a non-rotating state on a non-rotating member side of the vehicle, and the base is integrally rotatable on a rotating member side of the vehicle. Disc brake for vehicles, characterized by being supported by the vehicle. 2. A disk comprising: a disk; an annular base disposed opposite a radially outer side surface of the disk; and a pad disposed on a side surface of the base and facing a side surface of the disk. A disc brake for pressing the disc against the side surface of the disc to brake the wheels, wherein the disc is supported in a non-rotating state on the non-rotating member side of the vehicle, and the base is integrally rotatable on the rotating member side of the vehicle. Disc brake for vehicles, characterized by being supported by the vehicle. 3. The vehicle disc brake according to claim 1, wherein the disc is supported by an axle housing, and the base is supported by a tire wheel.