JPS62429Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an anti-rattle pad clip for a pin type disc brake.

In general, the support structure of the friction pad in a pin type disc brake has a structure that is inappropriate for torque transmission of the sliding support device when the brake torque during braking is transmitted from the caliper to the support via the pin slide type sliding support device. In many cases, a pair of opposing friction pads are supported by direct supports so as to be movable in the axial direction of the rotor, and torque during braking is directly received by the supports without going through a caliper or sliding support device.

By the way, in this type of friction pad support structure, an anti-rattle pad clip is usually installed to prevent the friction pad from rattling when the brake is not applied. It is possible to simultaneously determine the assembly position of the outer friction pads and the outer friction pads at the same time. a support that is movable in a direction; a caliper that is arranged to straddle the edge of the rotor and that operates to press the pair of friction pads against the rotor; and a support that allows the caliper to move in the axial direction of the rotor. inserted so as to engage with a pair of left and right sliding support devices to support, an inner surface of a saddle portion that straddles the rotor of the caliper, and an upper edge of the pair of friction pads;
In a pin type disc brake equipped with a pair of friction pads and an anti-rattle pad clip that applies a spring force inward to the rotor diameter,
The anti-rattle pad clip has a first engaging portion that engages with the front surface of one of the inner leg portions facing the rotor of a pair of legs facing each other with the rotor of the caliper in between, and an outer leg portion that engages with the front surface of the inner leg portion facing the rotor. This anti-rattle pad clip for a pin type disc brake is characterized by having a second engaging portion that engages with the outer side friction pad so as to bring the side friction pad into contact with the outer side friction pad.

The present invention will be explained below based on the embodiments shown in the drawings.

Figures 1 and 2 show a so-called integral knuckle type in which a support 2 fixed to the edge of the rotor 1 is formed integrally with a knuckle supporting the wheel, and this support 2 is connected to the knuckle by two or more parts. A pair of left and right arm portions 3, 3 extending to the sides of the rotor (inner side), and extension portions 4, 4 extending from the arm portions 3, 3 to the other side (outer side) of the rotor. It is provided so as to have the following.

Reference numeral 5 denotes a caliper which is disposed so as to straddle the edge of the rotor and which operates so as to press a pair of opposing friction pads, which will be described later, against the rotor, and which is provided between the arms 3 and 3 of the support 2. The rotor is supported so as to be movable in the axial direction via a pair of left and right sliding support devices 6, 6. The configuration of this sliding support device is not directly related to the present invention, and in short, the slide pins 7, 7 fixed to the arms 3, 3 of the support
The openings 9, 9 of the caliper boss portion are slidably fitted to the outer periphery of the rigid sleeves 8, 8 (in this example, inserted into the rigid sleeves 8, 8) directly or via a rubber bushing 10 so as to be movable in the axial direction of the rotor. The openings may be fixed and formed oppositely in relation to the support and caliper.

The caliper 5 has a pair of legs 11 and 12 facing each other with the rotor in between, and the inner leg 11 has a pad pressed into a cylinder (not shown) that opens on the surface facing the rotor 1. It has a built-in piston, and is provided so that the inner side friction pad 13 is pressed against the rotor by this pad pressing piston, while the outer side leg portion 12 is moved by the reaction force of the inner side friction pad pressing of the pad pressing piston. The outer friction pad 14 acts as a reaction claw that presses the outer friction pad 14 against the rotor 1 by the moving force of the caliper 5.

Friction pads 1 on the inner and outer sides
3 and 14, projecting ears 13a, 13a, 14a, and 14a formed at the left and right upper corners, respectively, are hooked onto the upper surface of the arm portions 3, 3 or the extension portions 4, 4 of the support 2, so that the rotor shaft Supported for directional movement.

Reference numerals 15 and 15 denote a pair of left and right anti-rattle pad clips inserted between the upper edges of the caliper 5 and the pair of friction pads, and the anti-rattle pad clips 15 and 15 are attached to the pair of friction pads 13 and 14 on the radially inner side of the rotor with respect to the caliper 5. By applying a spring force to the left and right ears 13a, 13a, of these pair of friction pads 13, 14,
14a, 14a are elastically pressed against the upper surface of the arm portions 3, 3 or extension portions 4, 4 of the support with which they are hooked and engaged, thereby preventing the pair of friction pads 13, 14 from rattling when the brake is not applied. There is.

The feature of the present invention lies in the shape and assembly structure of the anti-rattle pad clips 15, 15, which will be explained below with reference to FIG.

The left and right padded clips 15, 15 are
A main body portion 15a bent in a U-shape, one bent end portion 15b engaged with the upper end surfaces of the inner and outer friction pads 13, 14, and a caliper 5.
The other bent end portion 15c engages with the inner surface of the saddle portion that straddles the rotor, and applies a spring force to separate the friction pads 13 and 14 from the saddle portion of the caliper 5 by elastic contraction of the main body portion 15a during assembly. At the same time, a first engaging portion 15d is bent on the inner side edge portion and engages with the cylinder opening surface of the inner leg portion 11 of the caliper 5 facing the rotor 1.
and a second engaging portion 15e that is bent at the side edge of the outer side and engages with the front surface of the pad back plate (the surface facing the rotor 1) of the outer friction pad 14. Second engaging portions 15d, 15
e, caliper 5 and outer friction pad 14
By engaging with the pad clip 15, the pad clip 15 is positioned relative to the caliper 5 in the rotor axial direction. Furthermore, the set distance between the first and second engaging parts 15d and 15e of the pad clip 15 in the rotor axial direction is determined by the set gap between the pair of legs 11 and 12 of the caliper 5 and the set distance between the pair of legs 11 and 12 of the outer side friction pad 14. If the friction pad 14 is provided so as to be in contact with the outer leg portion (reaction and claw portion 14) of the caliper in relation to the thickness of the back plate, the outer friction pad 14 does not require any other structural members. It is also possible to assemble it in the same positional relationship as when it is fixed to the caliper 5 without having to do so.

According to such a configuration, the pair of friction pads 1
3 and 14 can be effectively prevented, and since the pad clip 15 is maintained in the same relationship as if it were integrally assembled with the outer friction pad 14 on the caliper 5, it is possible to prevent the pad clip from falling out of position. The practical benefits of this, such as being completely safe, are extremely great.

FIG. 4 shows another embodiment of the present invention, in which a pair of left and right pad clips are integrated and formed from a single leaf spring material.
In such a case, the upper and lower protruding parts of the main body part 16a, which is made by bending a plate material in a wave-like manner, are elastically engaged with the inner surface of the saddle part of the caliper 5 and the upper end edges of the pair of friction pads 13 and 14. A biasing spring force is obtained for the friction pads 13 and 14, and the first
and the second engaging portions 16b, 16c, the caliper 5
The positioning function is obtained by engaging the front surface of the inner side leg portion 11 with the cylinder opening facing the rotor and the front surface of the back plate of the outer side friction pad 14, and the effect is the same as in the above implementation. In addition to this, there is also the advantage that the assembly work is easy because there is only one member in this example.

Note that 16d is an opening for preventing interference of the rotor 1.

As described above, the anti-rattle pad clip for the pin-type disc brake of the present invention has the effect of enabling the positioning of the anti-rattle pad clip and the positioning of the outer friction pads to be achieved with a relatively simple structure, and the practical benefits thereof are extremely great.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a plan view including a partial cross section of a pin type disc brake;
FIG. 2 is a front view of the anti-rattle pad clip, FIG. 3 is a perspective view illustrating the assembled state of the anti-rattle pad clip, and FIG. 4 is a perspective view of a single anti-rattle pad clip showing another embodiment. DESCRIPTION OF SYMBOLS 1... Rotor, 2... Support, 3... Arm part, 4... Extension part, 5... Caliper, 6... Sliding support device, 7... Slide pin, 8... Rigid sleeve, 9... Opening, 10...butsuyu, 11,1
2... Leg portion, 13, 14... Friction pad, 13
a, 14a... Ear part, 15... Padded clip,
15a... Main body, 15d, 15c... End, 1
5d...first engaging part, 15e...second engaging part, 1
6...Pad clip, 16a...Main body, 16
b...First engaging part, 16c... Second engaging part, 16
d...Opening.

Claims (1)

[Claims for Utility Model Registration] 1. A support that is fixed to the rotor edge and supports a pair of opposing friction pads so as to be movable in the rotor axial direction; a caliper that operates to press the friction pad against the rotor; a pair of left and right sliding support devices that support the caliper so that it can move in the axial direction of the rotor; an inner surface of a saddle portion of the caliper that straddles the rotor; In the pin type disc brake, the anti-rattle pad clip is inserted to engage with the upper edge of the pad and apply a spring force to the pair of friction pads inwardly radially of the rotor. The tube clip has a first engaging part that engages with the front surface of one inner leg facing the rotor of a pair of legs facing each other with the rotor of the caliper in between, and an outer friction pad on the other outer leg. An anti-rattle pad clip for a pin type disc brake, comprising a second engaging portion that engages with the outer friction pad so as to abut the outer friction pad. 2. Claim 1 of the utility model registration characterized in that the anti-rattle pad clips are provided in a pair on each of the left and right sides of the caliper.
Anti-rattle pad clip for pin type disc brakes as described in section. 3. The anti-rattle pad clip of the pin type disc brake described in claim 1 of the utility model registration, characterized in that the anti-rattle pad clip is a single member formed so as to extend from side to side on the inner surface of the saddle portion of the caliper. Tsudo Clip.