JPH027302Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a disc brake, and particularly to a disc brake in which a carrier for guiding and supporting a caliper is integrally formed with a knuckle of a vehicle.

Conventionally, disc brakes have been assembled by assembling the caliper to a carrier that guides the caliper, and then assembling the carrier to the non-rotating part of the vehicle using fixing means such as bolts, but in recent years the weight of vehicles has been reduced and the number of parts has increased There is a strong desire for the emergence of a so-called direct mount type disc brake, in which a carrier is integrally formed on the vehicle's nut and the carrier is directly assembled to the carrier in order to reduce the amount of damage caused by the vehicle.

However, in the case of this type of direct mount disc brake, parts such as pads, pad springs, guide bolts, and calipers are delivered separately from the parts manufacturer to the vehicle manufacturer. However, there are problems in that the parts must be assembled one by one, which takes a lot of man-hours, extremely reduces productivity, and makes parts management difficult.

[Problem that the invention attempts to solve]

The problem to be solved by the present invention is that when the caliper is separated from the carrier, it is possible to assemble and hold the guide bolt on the caliper. The object of the present invention is to allow calipers, pads, guide bolts, etc. to be easily and quickly assembled, to reduce assembly man-hours, and to improve productivity.

[Means for solving problems]

In order to solve such problems, the present invention provides a carrier that is fixed to a non-rotating part of a vehicle and that movably guides a pad provided facing the disk surface in the axial direction of the disk, and A set of through holes are provided extending in the axial direction of the disk at intervals, and are movably provided on the carrier via guide bolts slidably inserted into the through holes. In a disc brake consisting of a caliper and a dust boot provided between the caliper and the guide bolt, one end of a bolt slipping prevention member such as a wire or string is attached to a part of the guide bolt, and the other end is attached to the guide bolt. They are each latched to the bellows part of the dust boot.

[Effect]

When the caliper is separated from the carrier, a set of guide bolts is assembled and held on the caliper, making it easy to assemble the caliper, pads, guide bolts, etc. to the carrier.

[Effect of idea]

Even when the caliper is separated from the carrier, the guide bolts can be assembled and held in the caliper without changing the parts.This allows, for example, to attach the caliper, pads, and guide to the carrier that is integrated with the vehicle's nut. Bolts and the like can be assembled easily and quickly, reducing the number of assembly steps and greatly improving productivity.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 3. In the figure, 1 is a caliper, and this caliper 1 is opposed to one leg 3 via one leg 3 having a piston 2 inside and a bridge part 4 extending from this one leg 3. It consists of the other leg part 5 provided on the other hand, and the mounting arms 6 and 7 provided on both sides of the one leg part 3.
The piston 2 has a recess 8 and is slidably provided within one leg 3. Further, a U-shaped groove 9 is formed in the other leg portion 5 . Through holes 10 and 11 are formed in the mounting arms 6 and 7, respectively, and sleeves 12 and 13 are slidably fitted into these through holes 10 and 11, respectively. The sleeves 12 and 13 are provided with guide bolts 14 and 14, respectively.
15 has been inserted. An elastic bellows-shaped dust boot 16 is telescopically attached to one end of the mounting arm 6 and one end of the sleeve 12.
An elastic, bellows-shaped dust boot 17 is telescopically attached between the other end of the arm 6 and the other end of the sleeve 12. Also mounting arm 7
An elastic bellows-shaped dust boot 16 is telescopically attached to one end of the arm 7 and one end of the sleeve 13, and an elastic bellows-shaped dust boot 17 is attached to the other end of the arm 7 and the other end of the sleeve 13. It is attached retractably. A guide bolt retaining member 18 is provided between the head 14a of the guide bolt 14 and the trough (bellows) 16a on the head 14a side of the dust boot 16. A guide bolt retaining member 19 is provided between the valley portions (bellows portions) 16a on the side of the portion 15a. As shown in FIG. 2, the guide bolt retaining member 18 is made of a wire material formed into a spiral shape, one end 18a of which is fixedly attached to the head 14a, and the other end 18b is fitted into the trough 16a. are installed together. The guide bolt retaining member 19 is formed in the same manner as the guide bolt retaining member 18, but in a symmetrical shape, and its one end 19a is fixedly attached to the head 15a, and the other end 19b is attached to the trough 16a. mated and installed.

A disk 20 is provided between the piston 2 and the other leg 5.
A pair of pads 21 and 22 are provided on both sides of the pad and are spaced apart from each other. One pad 2
1 is attached to the piston 2 via a spring 23 attached to its back plate so that it does not fall, but is movable in the axial direction of the disk 20. The other pad 22 is attached to the other leg 5 via a spring 24 attached to its back metal so as to prevent it from falling, but to be movable in the axial direction of the disk 20. In addition, Pad 2
A spacer (not shown) corresponding to the thickness of the disk 10 is inserted between the pads 1 and 22, and is held between the pads 21 and 22.

Furthermore, guide reinforcing plates 25 made of stainless steel plates are attached to both sides of the pair of pads 21 and 22, as shown in FIGS. 1 and 3. The guide reinforcing plate 25 also serves as a pad spring, and is composed of a guide reinforcing part 26, a leg part 27, a pad spring part 28, and a stopper part 29. The pad spring portion 28 has a convex portion 28a that is fitted into a recess formed in the ears of the pads 21 and 22, and a locking portion 28b that is locked to the lower surface of the bridge portion 4 of the caliper 1. . The guide reinforcing plate 25 is held by pads 21 and 22 held on the caliper 1.

For example, we will provide the vehicle manufacturer with the caliper 1, guide bolts 14, 15, pads 21, 2.
2. When a manufacturer of parts such as the guide reinforcing plate 25 delivers these parts, these parts are assembled and delivered in the state shown in FIG. When this caliper 1 is separated from the carrier 30 shown in FIG. 3, the guide bolts 14 and 15 are
Even if the head 1 of the guide bolts 14 and 15 is shaken,
4a, 15a are connected to the dust boot 16 by guide bolt retaining members 18, 19, and since the dust boot 16 has elasticity, the guide bolts 14, 15 are connected to the mounting arms 6, 15 of the caliper 1.
There's no getting out of 7.

Therefore, as shown in FIG. 3, vehicle manufacturers attach the ears of the pads 21 and 22 to the pad guide section 31 of the carrier 30, which is integrally provided on the vehicle's nut, via a guide section reinforcing plate 25. Put it on,
The disk 20 is positioned between the pads 21 and 22, the stopper part 29 is engaged with the end face of the pad guide part 31 of the carrier 30, and the guide bolts 14 and 15 are screwed into predetermined positions of the carrier 30.
The sleeves 12 and 13 are fixed to. After that, the guide bolt retaining members 18 and 19 are removed from the dust boots 16 and 17 and the heads 14a and 15a.

As described above, according to this embodiment, the pads 21 and 22 and the guide reinforcing plate 25 are temporarily held on the caliper 1, and the guide can be attached to the mounting arms 6 and 7 of the caliper 1 without changing the members. The caliper 1 and the guide bolts 14, 1 are attached to a carrier 30, which can be inserted and held by the bolts 14, 15, and is therefore provided integrally with the nut of the vehicle, for example.
5. The pads 21, 22, the guide reinforcing plate 25, etc. can be assembled easily and quickly, reducing the number of man-hours required for assembly, and greatly improving productivity.

Note that the heads 14a of the guide bolts 14, 15,
The guide bolt retaining members 18 and 19 that connect the guide bolts 15a to the valleys of the dust boots 16 and 17 may be plastically deformable like wire or string, or elastically deformable like a spring. , may be made of a rigid body, and may be made of not only a wire rod but also a plate material, and as shown in FIG. It may be provided with portions 18c and 19c.

Further, in the above embodiment, the carrier 1 holding the guide bolts 14, 15 and pads 21, 22 was attached to the carrier 30 integrally formed in the knuckle of the vehicle, but the invention is not limited to this. For example, it can be attached to the carrier of a general disc brake.

[Brief explanation of drawings]

1 to 3 show an embodiment of the present invention, in which FIG. 1 is a partially cutaway plan view, FIG. 2 is a perspective view of a guide bolt retaining member, and FIG. 3 is a pad on a caliper, A front view showing a state in which a guide reinforcing plate, a guide bolt, etc., are attached to a carrier, and FIG. 4 shows another embodiment of the present invention in which a guide bolt and a guide bolt retaining member are held in a carrier. FIG. 1... Caliper, 10, 11... Through hole, 1
4, 15... Guide bolt, 16, 17, 32,
33... Dust boot, 16a... Valley part (bellows part), 18, 19... Guide bolt slipping prevention member,
20...disk, 21,22...pad, 30
...Carrier.

Claims (1)

[Scope of utility model registration request] a carrier that is fixed to a non-rotating part of the vehicle and movably guides a pad provided facing the disk surface in the axial direction of the disk; A caliper having a set of extending through holes and movably provided on the carrier via a guide bolt slidably inserted into the through hole; and a caliper and the guide bolt. 1. A disc brake comprising a dust boot provided in between, wherein one end of a guide bolt retaining member is secured to the guide bolt, and the other end is secured to a bellows portion of the dust boot.