JPH03163228A - Installation structure of disc brake device for vehicle - Google Patents

Abstract

PURPOSE:To facilitate the fixation of an installation part by a bolt by permitting the tentative fitting of a shim plate to a certain position, by continuously installing an arm piece which elastically holds the installation part on the shim plate by allowing a bolt hole to coincide with the penetration position of a bolt. CONSTITUTION:When a disc brake device 6 is installed, an arm piece 14b is enfolded by a bracket 9, and a shim plate 14 is tentatively installed on the bracket 9 in the state where a bolt hole 14c of the shim plate 14 and the screw hole 9a of the bracket 9 coincide with each other. Then, the boss 14a of the shim plate 14 is fitted with a bolt hole 12 of an ear part 31, and the bracket 9 is pressed on the ear part 13 so that the shim plate 14 is superposed on an installation surface 13a. When a bolt 15 inserted into the bolt hole 12 of the ear part 13a, the bolt 15 is penetrates through the bolt hole 14c of the shim plate 14, and can be screwed with the screw hole 9a of the bracket 9, and the bracket 9 can be easily fixed with the ear part 13. When the disc brake 6 is demounted, the shim plate 14 is held on the bracket 9 by the arm piece 14b, and the trouble of slip-off and loss is prevented.

Description

[Detailed Description of the Invention] A. Object of the Invention (1) Industrial Application Field The present invention relates to a mounting structure for a disc brake device in a vehicle, mainly an automobile, and in particular, an ear portion protruding from a non-rotatable axle support member, and a bolt attached to the ear portion. A shim plate having a bolt hole penetrated by the bolt is interposed between the mounting part of the disc brake device and the mounting part of the disc brake device which is fixed with
Regarding improvements. (2) Conventional technology In the past, a shim plate was inserted between the ear part of the axle support member and the mounting part of the disc brake device for the purpose of rust prevention of the ear part and the mounting part, adjustment of the mounting position of the disc brake device, etc. It is already known that By the way, in the conventional system, when fixing the mounting part of the disc brake device to the ear part of the axle support member with bolts, a shim plate is simply inserted between the ear part and the mounting part. (3) Problems to be solved by the invention In the conventional system, when installing a disc brake device,
While inserting the bolts, the operator must hold the shim plate together with the brake disc mounting part with his or her fingertips and align the bolt hole of the shim plate with the bolt penetration position. Since this is done in a narrow space at the bottom, it is difficult to hold the shim plate with fingers as described above, and the installation requires skill. Also, when the brake disc is removed for maintenance, the shim plate may fall off and be lost. The present invention was made in view of the above circumstances, and it is possible to temporarily fix the shim plate to the mounting part of the brake device in advance, thereby facilitating the installation work of the brake device and preventing the shim plate from falling off when removing the brake device. It is an object of the present invention to provide a mounting structure for a disc brake device in a vehicle that can prevent the above problems.

B. Structure of the Invention (1) Means for Solving the Problems In order to achieve the above object, the present invention provides a shim plate that elastically holds the mounting portion by aligning the bolt hole with the bolt penetration position. It is characterized by having a series of arm pieces.

(2) Effect According to the above-mentioned Yokoi, when installing a disc brake device, first, by elastically holding the arm piece of the shim plate on the mounting part of the disc brake device, the bolt hole of the shim plate is aligned. Temporarily fasten it to the mounting part in a state that corresponds to the penetration position of the bolt. Next, the attachment portion to which the shim plate is temporarily attached is placed over the ear portion of the axle support member, and the two are secured to each other with bolts. Therefore, the operator is not only freed from holding the shim plate, but also can accurately insert the bolt into the bolt hole of the shim plate.

Even when the disc brake device is removed from the axle support member by removing the bolts for maintenance, the shim plate can be prevented from falling off from the mounting portion due to the temporary fixing action of the arm piece to the mounting portion.

(3) Embodiment Hereinafter, an embodiment of the present invention will be described with reference to the drawings. First, in FIG. A disc portion 4a of the wheel 4 is fixed to this with bolts 5, and a disc brake device 6 for braking the wheel 4 is installed between the rim portion 4b of the wheel 4 and the axle support member 1.

The disc brake device 6 has a conventional structure. That is, a brake disc 7 is fixed to the mounting flange 3 together with the disc portion 4a of the wheel 4, and a pair of friction pads 8 are disposed on opposite sides of the brake disc 7.
8', a bracket 9 as a mounting part that is fixed to the axle support member 1 by a mounting structure described later and supports the friction pad 8.8', and a sliding pin 10 is attached to the bracket 9 in the axial direction of the axle 2. The brake caliper 11 is slidably connected to the friction pads 8 and 8' and is arranged to straddle both friction pads 8 and 8'.The brake caliper 11 has a hydraulic piston (see Fig. (not shown) is installed. When the hydraulic piston is actuated to press one friction pad 8 against one side of the brake disc 7, the reaction force causes the brake caliper 11 to move along the sliding pin 10 in the opposite direction to the actuation direction of the piston. and press the other friction pad 8' against the other side of the brake disc 7. In this way, the wheels 4 are braked by applying equal frictional force to both sides of the brake disc 7.

Now, to explain the mounting structure of the bracket 9, the outer peripheral surface of the axle support member 1 has an ear portion 1 having a bolt hole 12.
3 is integrally protruded, and the mounting surface 13a inside the ear part 13 of the bracket 9 is made of stainless steel! ! They are superimposed with a shim plate 14 made of a plate in between, and are fixed to the ear part 13 by screwing the bolt 15 inserted into the bolt hole 12 into the threaded hole 9a of the bracket 9 and tightening it.

As shown in FIG. 2, the shim plate 14 has a shape that is large enough to cover the entire mounting surface 13a of the ear portion 13, and has a bolt hole l2 in its center, as shown in FIG. A fitting boss 14a is formed, and a hollow portion of the boss 14a is a bolt hole 14c through which a bolt 15 passes. Furthermore, an arm piece 14b that elastically holds the lower end of the bracket 9 is extended from the lower end of the shim plate 14. In order to restrain rotation of the shim plate 14 around the bolt 15, the lower end of the shim plate 14 is engaged with a step l6 rising from the lower edge of the mounting surface 13a.

Next, the operation of this embodiment will be explained. When installing the disc brake device 6, first, by holding the arm piece 14b in the bracket 9, the shim plate 14 is aligned so that its bolt hole 14c is aligned with the screw hole 9 of the bracket 9.
Temporarily fasten it to the bracket 9 in a state consistent with a. Next, while fitting the boss 14a of the shim plate 14 into the bolt hole l2 of the ear part 13, the bracket 9 is pressed against the ear part 13 so that the shim plate 14 overlaps the mounting surface 13a. Then, if the bolt 15 is inserted into the bolt hole l2 of the ear part 13, the bolt 1
5 naturally passes through the bolt hole 14c of the gym board 14 and reaches the screw hole 9a of the bracket 9, so the bolt 1 is inserted there.
5 into the threaded hole 9a and tighten it, the bracket 9
can be fixed to the ear part 13.

Thus, the mounting surface 1 of the ear portion 13 to which the bracket 9 is fixed
Since the shim plate 3a is entirely covered by the shim plate 14, the shim plate 3a will not be soiled by dirt or muddy water while the vehicle is being driven.

Therefore, even after removing the bolt 15 and removing the bracket 7 from the ear portion 13 for maintenance of the disc brake device 6, there is no need to clean the mounting surface 13a. Moreover, the shim plate 14 is held by the arm piece 14b, so that the bracket 9
Since it is kept in place, there is no risk of it falling off or being lost. On the other hand, dirt and muddy water adheres to the exposed surfaces of the bracket 9 and shim plate 14, but these should be cleaned after removing the bracket 9 and shim plate 14 from the ear portion 13 and separating both 9 and 14. The work is easy and reliable.

Therefore, if the bracket 9 is reassembled to the ear part 13 via the shim plate 14 after maintenance, foreign matter such as mud will not be present on the overlapping surfaces, so the proper mounting posture of the bracket 9 can be reproduced. Ru.

C. Effects of the Invention As described above, according to the present invention, the shim plate is provided with an arm piece that resiliently holds the mounting portion by aligning the bolt hole with the bolt penetration position, so that the shim plate can be attached to the arm piece. The shim plate can be temporarily fixed in a fixed position on the mounting part, and the operator is therefore freed from holding the shim plate with the tip of his arm, and can easily fix the shim plate to the ear part with the bolt. Further, even when the disc brake device is removed, the shim plate continues to be held in the mounting portion by the holding action of the arm piece, so that it is possible to prevent the shim plate from falling off and being lost. The shim plate can also be easily removed from the mounting portion as needed, which is beneficial for maintenance.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a partially vertical front view of a disc brake device of an automobile and its surroundings, and FIG. 2 is a view taken in the direction of arrow 2 in FIG. 1.

Claims (1)

[Claims] An ear portion (13) protruding from a non-rotatable axle support member (1).
) and the mounting part (9) of the disc brake device (6) fixed to this ear part (13) with a bolt (15),
In a mounting structure for a disc brake device in a vehicle, which includes a shim plate (14) having a bolt hole (14c) penetrated by the bolt (15), the bolt hole (14c) is inserted into the shim plate (14). bolt(
15) is characterized in that an arm piece (14b) for elastically holding the attachment part (9) is provided in a row so as to correspond to the penetration position of the attachment part (9).
Mounting structure of a disc brake device in a vehicle.