JP2001107996A - Brake caliper fitting structure for motorcycle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve maintenance for a brake caliper by easily dismounting the caliper without complicated work such as dismounting an axle shaft. SOLUTION: A caliper fitting bracket 41 is made into two-piece structure divided into first and second bracket half bodies 42 and 43, to provide a lower front end part 46 to be adopted as a through hole 56 and a whirl-stopping part on the half body 42, and first and second female screws 64 and 66 on the half body 43.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brake caliper mounting structure for a motorcycle which is suitable for replacing a brake pad and attaching and detaching a brake caliper.

[0002]

2. Description of the Related Art As a brake caliper mounting structure for a motorcycle, for example, one described in Japanese Utility Model Publication No. 4-39098, "Mounting Structure for Rear Wheel Brake Caliper" is known.

In the above technique, as shown in FIG. 5 of the publication, a holding member 70 is attached to a rear portion of a swing arm 48 via a rear wheel shaft 62, and a hole 80 and a pin 82 are provided in the holding member 70. A rear wheel brake caliper mounting structure for mounting the caliper 84 to the holding member 70 by fitting the pin 86 and the hole 88 provided on the caliper 84 into the hole 80 and the pin 82, respectively. .

[0004]

In the above technique, when the caliper 84 is attached or detached or the brake pad is replaced, the caliper 84 sandwiches the disk integrally attached to the rear wheel. And the brake pad cannot be removed from the caliper 84, the rear wheel axle 62 must be pulled out from the swing arm 48 and the holding member 70, and the caliper 84 must be removed together with the holding member 70. There is.

An object of the present invention is to provide a brake caliper mounting structure for a motorcycle in which a brake pad can be easily replaced and a brake caliper can be easily attached and detached.

[0006]

In order to achieve the above object, a first aspect of the present invention is to provide a swingable bracket mounted on an axle shaft through which a wheel passes, and a part of the bracket is locked to a vehicle body to prevent rotation. In a brake caliper mounting structure for a motorcycle in which a brake caliper is mounted on such a bracket, the bracket has a two-part structure that can be divided into a first bracket half and a second bracket half. An axle shaft through-hole and a detent portion are provided on the body, and a first bracket half mounting portion and a brake caliper mounting portion are provided on the second bracket half.

The bracket is divided into a first bracket half and a second bracket half, and a first bracket half is provided with an axle shaft through hole and a detent portion.
When the first half bracket mounting portion and the brake caliper mounting portion are provided on the half bracket, and the brake caliper is detached, the first bracket half mounting portion of the second bracket half is removed from the first bracket half, or The first bracket half mounting portion of the second bracket half is mounted on the first bracket half.

When the brake pad is to be replaced, the brake pad is removed from the brake caliper or the brake pad is attached to the brake caliper with the above-mentioned brake caliper removed.

As a result, the brake pads can be easily replaced and the brake calipers can be easily replaced without removing the axle shaft, and the maintenance of the brake calipers can be improved.

[0010]

Embodiments of the present invention will be described below with reference to the accompanying drawings. The drawings should be viewed in the direction of reference numerals. FIG. 1 is a side view of a motorcycle employing a brake caliper mounting structure according to the present invention. A motorcycle 10 is a scooter-type vehicle equipped with small-diameter wheels, and is capable of being steered by a handle 11 and a handle 11. Front fork 12 and this front fork 12
Front wheel 13 as a wheel attached to the lower end of
A front cover 14 covering the front of the front cover 1, side covers 15, 15 (rear side reference numeral 15 is not shown) covering the rear side of the front cover 14,
Floor steps 16, 16 arranged below 5, 15
(The reference numeral 16 on the rear side is not shown), a driver seat 17 and a passenger seat 18 disposed from the upper center to the rear of the vehicle body, and the passenger seat 18
And a body cover 21 that covers a lower side of the body.

The motorcycle 10 has a power unit 24 including an engine 22 disposed at a lower part of the vehicle body and a transmission 23 mounted at a rear portion of the engine 22.
A swing arm 26 swingably attached to the rear of the transmission case 25 of the transmission 23;
A gear case 27 connected to a drive shaft (not shown) housed in a left arm portion 26a constituting the swing arm 26 and attached to a rear portion of the left arm portion 26a.
And a rear wheel 28 as a wheel connected to the output shaft of the gear case 27. In addition, 31 is a wind screen and 32 is a muffler.

Further, the motorcycle 10 includes a brake caliper 40 for braking the rear wheel 28 and a caliper mounting bracket 41 for mounting the brake caliper 40 to the vehicle body, on the rear side of the rear wheel 28.

FIG. 2 is a side view showing the brake caliper mounting structure according to the present invention, as viewed from the rear side of the rear wheel 28 shown in FIG. The brake caliper 40 is mounted on the right arm portion 26b of the swing arm 26 via a caliper mounting bracket 41.

The caliper mounting bracket 41 has a first bracket half 42 disposed on the right arm portion 26b side and a second bracket half 43 disposed on the brake caliper 40 side.
And a member having a two-part structure that can be divided into two parts.

The first bracket half 42 has a lower rear end 45 swingably attached to an axle shaft 44 that penetrates the rear wheel 28 (see FIG. 1). The first bracket half 42 serves as a detent in the middle of the right arm 26b. This is a member in which the lower front end 46 is attached with a bolt 47. The second bracket half 43 is connected to the first bracket half 43.
It is a member which is attached to the bracket half 42 with bolts 48, 48, and the brake caliper 40 is attached to an upper brake caliper attachment portion (described later) with pins 52, 53. Reference numeral 54 denotes a disk plate integrally attached to the rear wheel 28.

The pins 52 and 53 are connected to the second bracket half 4.
The brake caliper 40 is movably attached to the front and rear directions of FIG.
Cannot be removed.

FIG. 3 is a sectional view taken along the line 3-3 in FIG. 2, and a through hole 56 as an axle shaft through hole is formed in the first bracket half 42 of the caliper mounting bracket 41, and the axle shaft 44 is formed in the through hole 56. , The axle shaft 44 is attached to the right arm portion 26b, the second bracket half 43 is attached to the first bracket half 42, the brake caliper 40 is attached to the second bracket half 43, and the wheels 57 of the rear wheel 28 are attached. 4 shows that the pads 58 and 61 of the brake caliper 40 are arranged on both sides of the disk plate 54 attached to the brake caliper 40.

Here, 62 is a caliper body excluding the pads 58 and 61 from the brake caliper 40, 63 is a bolt insertion hole through which the bolt 48 passes, and 64 is a first bracket half mounting portion for screwing the bolt 48 into the first half. A screw 65 is a pin insertion hole for passing the pin 53, 66 is a second female screw as a brake caliper mounting portion for screwing a male screw 53 a provided on the pin 53, 67 is a nut screwed into an end of the axle shaft 44, 68 is a nut A bearing for rotatably mounting the wheel 57 on the axle shaft 44, a collar 71 interposed between the first bracket half 42 and the bearing 68, an oil seal 72, a disk plate 73 on the wheel 57 Bolts for mounting 54 (only one of the plurality is shown), and 74 are tires.

The procedure for attaching and detaching the brake caliper 40 described above will now be described. FIG. 4 is an operation diagram illustrating a procedure for attaching and detaching the brake caliper according to the present invention, which will be described in order. First female screw 64 of second bracket half 43
Loosen and remove bolt 48 screwed in. The brake caliper 40 with the second bracket half 43 attached is moved radially outward along the disk plate 54.

When the end 40a of the brake caliper 40 moves radially outward from the outer peripheral surface 54a of the disk plate 54, the brake caliper 40 moves to the side of the wheel 57. Thus, the removal of the brake caliper 40 is completed. Also, to install the brake caliper 40,
What is necessary is just to reverse the above-mentioned removal.

The procedure for replacing the pads 58 and 61 described above will now be described. FIGS. 5 (a) to 5 (c) are action diagrams illustrating the procedure for replacing pads of the brake caliper according to the present invention. With the brake caliper 40 removed from the first bracket half as shown in FIG.
The pad 61 is moved to an imaginary line position as indicated by an arrow, and then is extracted from the brake caliper 40 to the outside as indicated by an arrow.

Similarly, in FIG.
Is moved to an imaginary line position as indicated by an arrow, and is then pulled out of the brake caliper 40 to the outside as indicated by an arrow. Thus, the removal of the pads 58 and 61 from the brake caliper 40 is completed. Also, pad 5
Attachment of 8, 61 may be performed in the reverse of the removal described above.

As described above with reference to FIG. 3, the brake caliper mounting structure of the motorcycle 10 (see FIG. 1) includes a caliper mounting bracket 41 which is swingably mounted on an axle shaft 44 through which the rear wheel 28 passes. The motorcycle 10 in which a part of the mounting bracket 41 is locked to the vehicle body to prevent rotation, and the brake caliper 40 is mounted on the caliper mounting bracket 41.
In the brake caliper mounting structure of the above, the caliper mounting bracket 41 has a two-part structure that can be divided into a first bracket half 42 and a second bracket half 43, and the first bracket half 42 has a through hole 56, a detent part, A lower front end 46 (see FIG. 2) is provided to
A first female screw 64 and a second female screw 66 are provided.

With the above configuration, the brake caliper 40 can be easily removed without performing a complicated operation such as removing the axle shaft 44.
Can be improved in maintainability. In addition, the mounting of the brake caliper 40 on the vehicle body side can be easily performed in a procedure reverse to the removal procedure by forming the caliper mounting bracket 41 into a two-part structure.

Although the bracket of the present invention has been described with reference to the embodiment in which the brake caliper 40 on the rear wheel 28 side is attached as shown in FIG. 3, the present invention is not limited to this, and the front wheel 13 (see FIG. 1) The brake caliper on the side of ()) may be attached.

[0026]

According to the present invention, the following effects are exhibited by the above configuration. The brake caliper mounting structure for a motorcycle according to claim 1, wherein the bracket has a two-part structure that can be divided into a first bracket half and a second bracket half, and the first bracket half has an axle shaft through hole and a detent. Since the first and second bracket halves are provided with the first bracket half mounting portion and the brake caliper mounting portion, the brake caliper can be easily removed without performing a complicated operation such as removing an axle shaft. It is possible to improve the maintenance of the brake caliper.

[Brief description of the drawings]

FIG. 1 is a side view of a motorcycle employing a brake caliper mounting structure according to the present invention.

FIG. 2 is a side view showing a brake caliper mounting structure according to the present invention.

FIG. 3 is a sectional view taken along line 3-3 in FIG. 2;

FIG. 4 is an operation diagram illustrating a procedure for attaching and detaching the brake caliper according to the present invention.

FIG. 5 is an operational view illustrating a procedure for replacing a pad of a brake caliper according to the present invention.

[Explanation of symbols]

10 ... motorcycle, 13, 28 ... wheels (front wheel, rear wheel),
40: brake caliper, 41: bracket (caliper mounting bracket), 42: first bracket half, 43 ...
Second bracket half, 44 ... axle shaft, 46 ...
Detents (lower front end), 56: axle shaft through hole (through hole), 64: first bracket half mounting portion (first female screw), 66: brake caliper mounting portion (second female screw).

Claims (1)

[Claims] 1. A motorcycle brake in which a bracket is swingably mounted on an axle shaft through which wheels are passed, a part of the bracket is locked to a vehicle body side to prevent rotation, and a brake caliper is mounted on such a bracket. In the caliper mounting structure, the bracket has a two-part structure that can be divided into a first bracket half and a second bracket half, and the first bracket half has an axle shaft through hole and a detent portion, and the second bracket has A brake caliper mounting structure for a motorcycle, wherein a first bracket half mounting portion and a brake caliper mounting portion are provided on a bracket half.