JP2002130349A - Brake pad - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a brake pad in which any one accurately confirm a residual quantity of a brake pad immediately, regardless of sex and age. SOLUTION: At least two layers of color code partitions B, Y, R are formed in the direction of thickness of outer side of a pad body 20 disposed separately from a braking side 1 of a disc rotor D.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a brake pad operated on a disk rotor of a vehicle such as an automobile.

[0002]

2. Description of the Related Art As is well known, a brake pad is used for braking wheels of a vehicle such as an automobile, and is pressed against a braking surface of a disk rotor during a braking operation.

[0003] With respect to this kind of brake pad, it has been conventionally performed to check the remaining amount (remaining thickness) of the pad body worn out by wear and to check whether the remaining amount is within an allowable range in terms of safety. Had been

[0004]

However, checking whether the remaining amount of the pad body is within an allowable range in terms of safety requires checking that the brake pad is installed in a narrow place or that the initial state of the pad body is small. This was a difficult task because it was difficult for an automobile user to understand the thickness. In addition, the task of checking the remaining amount of the pad main body was troublesome and troublesome for specialists.

The present invention has been made under the above circumstances, and it is an object of the present invention to provide a brake pad capable of confirming at a glance the remaining amount of the pad body at a glance at any time during inspection. .

[0006]

A brake pad according to the present invention has at least two color-coded sections formed in a thickness direction of an outer end surface of a pad body separated from and brought into contact with a braking surface of a disk rotor of a vehicle. It is. According to this, when the pad body wears down, the width of the color-coded section that has been colored in a predetermined color becomes narrower or the color-coded section disappears in accordance with the amount of wear, so at a glance It can be determined whether the remaining amount of the pad body is within an allowable range in terms of safety.

In the present invention, it is sufficient that at least two layers of color-coded sections are formed on the outer end face of the pad body.
There may be more than layers. Also, since the color-coded section only needs to be formed on the outer end surface of the pad body, the pad body is formed by laminating more than two layers of materials, even if the pad body has only one material. May be used. Further, the color-coded section can be formed also by dividing the outer end surface of the pad body into two layers or more than two layers and coloring each section with a different color.

[0008]

FIG. 1 is a schematic perspective view of a brake pad A according to an embodiment of the present invention, FIG. 2 is a view taken in the direction of the arrow II in FIG. 1, and FIG. 3 shows the positional relationship between the brake pad A and the disk rotor D. FIG.

As shown in FIGS. 1 and 2, the brake pad A
Has a base plate 10 and a pad body 20 attached to the base plate 10, and three layers of color-coded sections B, Y, and R are formed in the thickness direction of the outer end surface of the pad body 20. . These color-coded sections B, Y, and R are formed by dividing the outer end surface of the pad body 20 into three sections in the thickness direction and coloring each section with a different color. As shown in FIG. 3, in this embodiment, the pad body 20
Of the disk rotor D (the surface facing the braking surface 1 (see FIG. 3) of the disk rotor D) is colored black, the outer color R is red, and the intermediate color Y is yellow. ing.

As shown in FIG. 3, the brake pads A are arranged so as to face the braking surfaces 1 on the inner and outer sides of the disk rotor D.
It is arranged inside and outside the disk rotor D. During braking, the pad body 20 is pressed against the braking surface 1 of the disk rotor D, whereas the pad body 20 is normally separated from the braking surface 1 of the disk rotor D as shown in the drawing.

In the brake pad A of this embodiment, the pad body 20 is colored yellow when the inner layer corresponding to the inner color-coded section B colored black wears first and disappears due to wear. When the intermediate layer portion corresponding to the intermediate color-coded section Y is worn and the intermediate layer portion is lost by abrasion, the outer layer portion corresponding to the outer color-coded section R colored red is worn.

According to this embodiment, the remaining amount of the pad main body 20 can be determined at a glance only by visually checking whether or not all three color-coded sections B, Y, and R are present. Can be. For example, by performing a visual observation, if the width of the black color-coded section B is narrow, it can be determined that the inner layer portion of the pad body 20 is only slightly worn, and the yellow and red 2 If only the two color-coded sections Y and R can be seen, it can be determined that the inner layer has disappeared due to wear.

In this embodiment, a yellow color-coded section Y for calling attention is located at an intermediate portion in the thickness direction of the outer end surface of the pad body 20, and a red color-coded section for calling out a dangerous state is provided outside the section. R is positioned. For this reason, if it is determined by visual observation that the remaining amount of the pad body 20 is only the two color-coded sections Y and R of yellow and red, it is recognized that the replacement time of the pad body 20 is approaching. If it is determined that the remaining amount of the pad body 20 is only one color-coded section R of red, it can be recognized that the pad body 20 needs to be replaced at an early stage. .

[0014]

As described above, according to the present invention, the pad body can be viewed at a glance by anyone, regardless of whether it is a gender or an elderly person, regardless of whether it is a general automobile user, not only an inspection specialist. Since it is possible to accurately check the remaining amount of the pad body, it is not necessary to check the remaining amount of the pad body by performing a difficult and troublesome inspection work as in the related art. As a result, it is easier to prevent an accident that the remaining amount of the pad body becomes too small and the disk rotor or the like is damaged or damaged.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a pad body of a brake pad according to an embodiment of the present invention.

FIG. 2 is a view taken in the direction of the arrow II in FIG.

FIG. 3 is an explanatory diagram showing a positional relationship between a disk rotor and a brake pad.

[Explanation of symbols]

 Reference Signs List 1 braking surface of disk rotor 20 pad body B, Y, R color-coded section D disk rotor

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takashi Ishimoto 403 1-6-20- Gion, Asaminami-ku, Hiroshima-shi, Hiroshima 403 (72) Inventor Mitasuyasu 20- 103 F-term (reference) 3J058 BA60 CA42 DB02 DB09 FA01

Claims (1)

[Claims] 1. A brake pad, wherein at least two color-coded sections are formed in a thickness direction of an outer end face of a pad body which is separated from and brought into contact with a braking surface of a disk rotor of a vehicle.