JP2002029395A - Mounting structure of wheel speed detector - Google Patents

Abstract

(57) [Summary] [Purpose] To easily and inexpensively change specifications with and without a wheel speed detecting device. The brake disc 16 and the pulsar ring 53 are coaxially mounted on the lower end of the front wheel 1 by an axle 54, and the brake caliper 17 is mounted on the front fork 2 via the caliper bracket 20. The pulsar count sensor 30 is mounted below the brake caliper 17, and the sensor code 37 is mounted on the caliper bracket 20 by the sensor code clamper 40.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure of a wheel speed detecting device, and more particularly to a device capable of advantageously coping with a specification change.

[0002]

2. Description of the Related Art As a wheel speed detecting device for an ABS (anti-lock brake) system, there is known a wheel speed detecting device provided with a pulsar ring mounted on a wheel side and a pulsar count sensor mounted on a vehicle body side. As an example, Japanese Utility Model Publication No. 7-17609 discloses a structure in which a brake caliper is attached to a fork member supporting a wheel via a caliper bracket, and the pulsar count sensor is attached to the brake caliper.

[0003]

In the above-mentioned conventional example, a sensor cord extending from the pulser count sensor is attached to the fork member. For this reason, it is necessary to provide a boss for mounting the sensor cord on the fork member, and when preparing a specification for mounting the ABS system and a specification for not mounting the ABS system in the same model,
The fork member provided with a boss for mounting a clamper and the one without the boss must be manufactured.

For this reason, the specifications of the fork member differ depending on the presence or absence of the ABS system. As a result, the number of expensive parts increases and the management cost increases. It is hoped that it can be specified. An object of the present invention is to fulfill such a request.

[0005]

In order to solve the above-mentioned problems, a mounting structure of a wheel speed detecting device according to the present invention is provided such that a pulsar ring constituting the wheel speed detecting device is mounted on a wheel side.
Similarly, in a configuration in which the pulsar count sensor constituting the wheel speed detection device is mounted on the vehicle body side and disposed close to the pulsar ring, a brake caliper is mounted on the wheel support member via a caliper bracket, and the pulsar count sensor is mounted on the caliper bracket. A sensor cord clamper for fixing a sensor cord extending from the pulsar count sensor is attached to the caliper bracket.

[0006]

According to the present invention, the pulsar count sensor and the sensor code clamper are provided on the common caliper bracket, so that the pulsar count sensor and the sensor code clamper can be mounted using only the same caliper bracket. . Therefore, in the case of the specification without an ABS system, a caliper bracket without a pulsar count sensor and a sensor code clamper attachment part must be separately provided, and only this need be replaced. Only the caliper bracket, which is a relatively small and inexpensive part, needs to be used. As a result, the management cost can be reduced and the specification change of the presence or absence of the ABS system can be advantageously performed.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment will be described below with reference to the drawings. FIG. 1 is an exploded view of a front wheel brake mounting portion, and FIG.
FIG. 3 is a side view of a mounted state of a front wheel brake portion, and FIG. 3 is a side view of a scooter type motorcycle to which the present embodiment is applied.

First, the overall vehicle body will be outlined with reference to FIG. A pair of left and right front forks 2 supporting the front wheel 1 at the lower end thereof are rotatably supported by a head pipe 3 and are steered by a handle 4, and a body frame 5 extends rearward from the head pipe 3 to a vehicle body. A known swing type power unit 6 is swingably supported by the section.

A rear wheel 7 is supported at the rear end of the swing type power unit 6, and a rear cushion 8 is provided between the swing type power unit 6 and each rear end of the body frame 5. A seat 10 is disposed above the swing type power unit 6 and supported by the vehicle body frame 5. The front part of the vehicle body is covered with a front cover 11, the left and right upper sides are covered with a side cover 12, and the lower part is covered with a lower cover 13.
A step floor 14 is provided in the front part of 0.

The motorcycle is provided with an ABS system. The ABS system controls the operation of each of the front wheel brake 15 and the rear wheel brake (not shown) so as to avoid locking during braking. It has become. The front wheel brake 15 includes a brake disc 16 and a brake caliper 17 provided so as to be able to rotate integrally with the front wheel 1, and a hydraulic pressure is generated for the brake caliper 17 by operating a brake lever 18 of the steering wheel 4 and the like. A control device 19 for controlling the ABS system is provided at an appropriate position on the vehicle body side. The illustration is an example.

Next, referring to FIG. 1 and FIG.
5 will be described. The brake caliper 17 is attached to the front fork 2 via a caliper bracket 20. The caliper bracket 20 is detachably attached to stays 25 and 26 provided on the front fork 2 by bolts 23 and 24 at the bosses 21 and 22.

A sensor mounting hole 27 and a sensor mounting boss 2 are provided below the caliper bracket below the boss 21.
8, 29 are provided. The detecting portion 31 of the pulser count sensor 30 is fitted into the sensor mounting hole 27 via the collar 32. The pulsar count sensor 30 is attached to the mounting section 3
At 3 and 34, flange bolts 35 and 36 are attached to the sensor mounting bosses 28 and 29 by fastening.

A sensor cord 37 extending from the pulsar count sensor 30 extends upward along the front fork 2 and is attached to a clamp boss 38 provided above the caliper bracket.
1 is fastened and fixed with bolts 42. Sensor code 37
Extends further from the position of the sensor code clamper 40, is connected to the control device 19 (FIG. 3), and sends a pulse signal detected by the detection unit 31 to the control device 19.

The lower portion of the brake caliper 17 is prevented from rotating by a detent pin 43 which can be freely inserted and removed, and the upper portion is rotatably attached to the caliper bracket 20 with a support shaft 44. Brake hoses 45, 46 are provided in the hydraulic pot of the brake caliper 17 with oil bolts 47, 48.
Installed in. Reference numerals 49 and 50 are sealing washers.

Each of the brake hoses 45, 46 is fixed to the front fork 2 by a hose clamp 51.
Reference numeral 51a in FIG. 1 is a hose clamp boss provided integrally with the front fork 2, and reference numeral 52 is a clamp bolt. One of the upper ends of the two brake hoses 45 and 46 is connected to a front brake master cylinder provided near the right brake lever, and the other is connected to a rear wheel brake provided near the left brake lever. It is connected to the master cylinder for the interlocking brake that communicates with the front wheel brake.

A pulsar ring 53 constituting a wheel speed detecting device together with the pulsar count sensor 30 is mounted on the front wheel 1 coaxially to the lower end of the front fork 2 by the brake disc 16 and the axle 54, and rotates integrally with the front wheel 1.

A detecting portion 31 protruding from the sensor mounting hole 27 to the side of a slit 55 formed at equal intervals in the circumferential direction on a side surface of a pulsar ring 53 made of a magnetic material such as iron.
A pulse is generated each time the slit 55 and the following flesh alternately pass through the detection unit 31, and the control device 19 controls the rotation speed of the front wheel 1 based on the pulse signal. It is designed to detect.

Next, the operation of this embodiment will be described. ABS
In the case of a system specification car, the pulsar count sensor 30
Is attached to the lower portion of the caliper bracket 20, and the sensor cord 37 is attached to the clamp boss 38 of the caliper bracket 20 by the clamper 40 with the bolt 42.

In this way, all the pulsar count sensors 30 supported on the vehicle body side are
The sensor cord 37 does not need to be supported by the front fork 2, and the pulsar count sensor 30 and its related component, the sensor cord 37, can be miniaturized to the caliper bracket 20.

On the other hand, when the ABS system is not provided, the lower sensor mounting hole 27 and the lower sensor mounting boss 2 are provided.
It is only necessary to separately provide the caliper bracket 20, which does not have the upper and lower clamp bosses 38, 29, and to attach the brake caliper 17 to the front fork 2 via this.

Therefore, the front fork 2 and the brake caliper 17 are not changed in either the ABS system mounting specification or the specification without the ABS system.
These can be used in common, and only the caliper bracket 20
It is enough to change Moreover, caliper bracket 2
Since 0 is relatively small and inexpensive, even when a plurality of specifications are prepared for the same model, specification changes can be made easily and inexpensively, and the management cost can be reduced.

The present invention is not limited to the above-described embodiment, but can be variously applied or modified. For example, the wheel speed detecting device can be provided not only for the front wheel brake but also for the rear wheel brake or both the front and rear brakes. When provided on the rear wheel brake, a brake caliper can be attached to the rear fork. Further, in a type in which wheels are supported without using a fork member, a brake caliper can be attached to a wheel supporting member such as a swing arm or a swing unit regardless of whether the wheel is a front wheel or a rear wheel.

[Brief description of the drawings]

FIG. 1 is a side view of a front wheel brake portion according to an embodiment.

FIG. 2 is an exploded view thereof.

FIG. 3 is an overall side view of the motorcycle to which the embodiment is applied.

[Explanation of symbols]

1: front wheel, 2: front fork, 15: front wheel brake, 16: brake disc, 17: brake caliper, 20: caliper bracket, 30: pulser count sensor, 37: sensor code, 38: sensor code boss, 40: sensor Cord clamper, 42: Clamp bolt

Claims (1)

[Claims] A pulsar ring constituting a wheel speed detecting device is mounted on a wheel side, and a pulsar count sensor also constituting a wheel speed detecting device is mounted on a vehicle body side, and the pulsar counting device is disposed close to the pulsar ring. A brake caliper was attached to the wheel support member via a caliper bracket, the pulsar count sensor was attached to the caliper bracket, and a sensor cord clamper for fixing a sensor cord extending from the pulsar count sensor was attached to the caliper bracket. A mounting structure for a wheel speed detecting device.