JPS5954831A - Disk for disk brake - Google Patents

Abstract

PURPOSE:To contrive an increase in the diameter and radiating area of a disk, by forming a disk rotor into a unific construction in a way of making it project over a radial inward direction from a rim part of a load wheel. CONSTITUTION:When a brake pedal is stepped on, a brake pad 21 is pressed down by a disk 18. In consequence, the kinetic energy of a vehicle is converted into heat energy by friction lying between the brake pad 21 and the disk 18, and part of this heat energy is transmitted to a caliper 19 via the brake pad 21 but the rest of it is stored in the disk 18 and radiated to the open air. At this time, since the disk 19 is formed together with a load wheel 13 as one body, its radiating area comes large and also since the disk is being projected from a rim part 16, the disk 18 is able to take a large diameter, so that an increase in the quantity of radiation of heat and a step-up in braking force both are well promoted and a reduction in the number of items of parts available is brought to fruition owing to the unific construction.

Description

[Detailed description of the invention] The present invention relates to a disc for a disc brake.

As a conventional disc brake disc, one shown in FIG. 1, for example, is known. First, to explain the configuration of this disc brake, ■ is the pairing housing, 2 is the axle shaft, 3 is the road wheel, 4 is the hack plate fixed to the bearing housing 1, and 5 is the disc fixed to the axle shaft 2. The disc 5 is located in a space surrounded by the road wheel 3 and the hack plate 4. A brake pad (not shown) can be pressed against this disc 5 by a caliper supported on the vehicle body side, and the kinetic energy of the vehicle is converted into heat by the friction between the pre-vibration pad and the disc 5, and braking force is applied to the vehicle. .

Therefore, it is generally preferable for the disc 5 to have a large diameter and a large heat dissipation area in order to impart braking force to the vehicle. However, since the conventional disk 5 is fixed to a rotating body such as the axle shaft 2 and is located in a space surrounded by the road wheel 3 and the bank plate 4, there is a problem in that there is a limit to the increase in its diameter and heat radiation area. There was a point. In addition, road wheel 3
and disk 5 had to be manufactured separately, resulting in a large number of parts.

This invention was made focusing on the above problems,
Brake disc 11 supported on the vehicle body side [Nice brake disc that can be mounted: □ □ □ □ □ □ □ □ □ □ □ □ □ □ □ □ □ □
The above-mentioned problem is solved by protruding in the violet direction 1 direction H: direction -A main molding]. The purpose is to do that.

This invention will be explained below based on Figure I'm'' sound. □□
,・ FIG. 2 is a diagram showing a first embodiment of the present invention, and the configuration will be explained first. II is a bearing housing extending in the width direction of the vehicle;
A road wheel 13 is fixed at the end of the axle shirt 1 by bolts and nuts 14. The rotor point 13 has a rim part 16'J provided at the outer peripheral end of the disc part 15 extending in one half thereof, and has a rim part 16'J which is cut out.
Ear 7 is used by 1 on 6. A disk 18 is integrally molded with the road wheel 13 at substantially the center of the rim portion 16 in the width direction of the vehicle, and the disk 18 protrudes radially inward from the rim portion 16. 19 is a caliper supported on the vehicle side, and the caliper 19 is used for driving the vehicle: - When the brake pedal provided near the seat is depressed, Q
The brake pad 21 can be pressed against the disc 18 by sliding through a hydraulic mechanism.

・・−：Next, the action will be explained. The driver is the vehicle.

- Desiring to apply braking force, depress the brake pedal: When pressed, the brake pad 21 pushes the disc 18'''C□'
be born. As a result, the momentum energy of the vehicle is converted into heat due to the friction between the brake pad 21 and the disc 18. A portion of this heat is transferred to the caliper 19 via the brake pad 21; The remaining heat is stored in the disk 18 and radiated to the outside air. Here, the disk 18 is integrated with the low, dohoi, =llz13.

Because of its shape, the surface area of the disc 18 is larger than that of conventional cicadas, and the pedestal and part of the disc 18 protrude slightly.

The straight body of the disc 18 should be made large to keep it in place.
It is possible to increase the amount of heat dissipated and the braking force.In addition, since the disc 18 and road wheel 13, which were conventionally manufactured separately, are integrally molded, the number of parts is reduced. It is also possible to reduce the
□Figure 3 does not show the 2nd travel example of this invention, but has the same configuration as the first embodiment. . Fixed to the end of the axle is a road wheel, and this road wheel has a disk part 24 extending backwards and a nice wheel 24 a.
394 and a rim portion 25 provided at the peripheral end. At the outer end of the rim portion 25 in the vehicle width direction, there is a disc 'fi' M.
The disc is integrally molded with the mouth wheel 23, and the disc is projected radially inward from the rim component. A plurality of air holes 27 are formed in the road wheel holder and the disk 26 so as to be equally spaced from each other. The air hole 21 is opened at the inner end 1 in the direction □.On the other hand, the other end of the air hole 21 is opened at the outer end in the vehicle width direction of the rim portion 25.The disc of the general c miroad boiler 23 When the vehicle is running, an air flow occurs near the outer edge of the vehicle.Therefore, the other end of the air hole 27 leaps toward the outer edge in the width direction of the vehicle. The air in the layer □ air hole 27 is sucked and a flow of air is generated from one end of the air hole 27 to the other end.As a result, the release of the ax heat stored in the dissole 26 is further promoted. Even if you use disc brakes and use QJ, this phenomenon will not occur.
□ ：Biogami As explained above, in this invention, the disc for the disc brake can be rotated from the rotating body G≧Fixed road wheel: From the rim part of the Since it has an integral external shape, it is possible to increase the diameter of the support a, i) and the heat area. 4. Simplified distribution of drawings I! Jj' cross-sectional view, No. 21 shows the first embodiment of the present invention.
FIG. 3 is a front cross-sectional view of the second embodiment of the present invention.

11--One turn body (axle shirt day and '13, edict----Parode wheel, 16.25-
・-Rim portion, 18.26--Disk, 21--Brake pad, 27--Air hole.

1 person for patent Nissan Jidoshin Co., Ltd. agent patent attorney Ariga'111 part

Claims (1)

[Claims] In a disc brake disc that restricts the rotation of a brake pad supported on the vehicle body side by being pressed and fixed to a rotating body, the disc brake is moved radially inward from the rim of the road wheel. A disc for disc brakes characterized by an integrally molded protruding disc.