JPH0733005A - Actuator unit for brake device - Google Patents

Abstract

PURPOSE:To enhance damping force for improving silence of the main body of a unit by installing an actuator and a brake tube that form an unit main body onto a vehicle through a common rubber-like elastic body so as to increase the dimension of the rubber-like elastic body. CONSTITUTION:An ABS actuator unit 1 is provided with a number of brake tubes 3A, 3B, 4A-4D connected to an ABS actuator 2, and those tubes are installed onto a vehicle through a mounting mechanism. The brake tubes 3A, 3B, 4A-4D are clamped at plural clamp parts 6A, 6B. Respective one-side ends of plural bracket parts 5a... are fixed to the actuator 2. Furthermore, plural cushion rubbers 8B, 8A are incorporated in respective clamps 6A, 6B to be engaged with the respective brake tubes 3A, 3B, 4A-4D, and are engaged with the other ends of the respective bracket parts 5a. It is thus possible to increase the dimension of the cushion rubbers 8B, 8A for improving damping force.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brake device actuator unit, and more particularly to a brake device actuator unit mounted on a vehicle by a mounting mechanism.

[0002]

2. Description of the Related Art Conventionally, as an actuator unit for a brake device, for example, an actuator unit of an antilock brake device (ABS) that suppresses a reduction in steering stability of a vehicle during braking has been known. Includes an actuator, a brake tube connected to the actuator, and an attachment mechanism for attaching the actuator and the brake tube to a vehicle.

Then, as shown in FIG. 5, the conventional AB described above is used.
The S actuator unit 11 uses the ABS actuator 13 via the actuator vibration damping cushion rubber 14 and the actuator bracket 15 in order to prevent hydraulic pulsation and pump operation vibration during ABS operation from being directly transmitted to the vehicle body 12. It is attached to 12. For the same reason, the brake tube 16 and the brake tube 17 connected to the inlet side and the outlet side of the ABS actuator 13 are connected to the body 12 through the tube clamp 18 and the brake tube vibration-proof cushion rubber 19, respectively. It is attached.

[0004]

However, as in the conventional ABS actuator unit described above, if the ABS actuator and the brake tube are attached to the body of the vehicle body through separate cushion rubbers, respectively,
Due to space constraints, each cushion rubber cannot be made large. Therefore, the damping force of the cushion rubber cannot be increased, and if the pulsation of the pump cannot be absorbed and the pulsation is transmitted to the vehicle, the operating noise of the pump is amplified. was there.

The present invention has been made in view of the above points, and the ABS actuator and the brake tube are held via a common rubber-like elastic body, and the rubber-like elastic body is enlarged to provide the rubber-like elastic body. An object of the present invention is to provide an actuator unit for a brake device that can maintain quietness by increasing the damping force of an elastic body.

[0006]

SUMMARY OF THE INVENTION The present invention is for a brake system including an actuator, a brake tube connected to the actuator, and an attachment mechanism for attaching the actuator and the brake tube to a vehicle. In the actuator unit, the attachment mechanism includes a clamp portion that clamps the brake tube, a bracket portion whose one end is attached to the actuator, and a bracket portion that is incorporated in the clamp portion and engages with the brake tube. And a rubber-like elastic body that engages with the other end of the.

[0007]

The brake tube connected to the actuator is attached to the vehicle through the clamp portion that clamps the brake tube, and the actuator is attached to the vehicle through the bracket portion whose one end is attached to the actuator. . Then, the other ends of the brake tube and the bracket are engaged with a rubber-like elastic body incorporated in the clamp portion. That is,
The actuator and the brake tube are attached to the vehicle via the common rubber-like elastic body.

Therefore, by enlarging the rubber-like elastic body,
Since the damping force of the rubber-like elastic body can be increased, quietness can be maintained.

[0009]

EXAMPLE An example in which the present invention is applied to an actuator unit for ABS will be described below. 1 and 2 are a configuration diagram of the ABS actuator unit and a schematic perspective view corresponding to the actuator unit of FIG. 1, respectively.

1 and 2, reference numeral 2 is an ABS actuator provided in the ABS actuator unit 1. To the inlet side (the left side in FIG. 1) of the ABS actuator 2, one ends of the brake tubes 3A and 3B whose other ends are respectively connected to master cylinders not shown are connected, and the outlet side of the ABS actuator 2 ( Figure 1
In the middle and right side), the brake tubes 4A, 4B, 4C, the other ends of which are connected to respective vehicle calipers (not shown), respectively.
Each one end of 4D is connected.

On the inlet side surface of the ABS actuator 2, one end is attached to the ABS actuator 2, and the other end is attached to a cushion rubber incorporated in a clamp portion which will be described later. A character-shaped bracket 5A is provided, and likewise AB
One end of the S actuator 2 on the outlet side is the ABS.
A bracket 5B having an L-shaped cross section, which is attached to the actuator 2 and the other end of which is attached to a cushion rubber incorporated in a clamp portion described later.
Is provided.

Two plate-shaped brackets 51a are erected on the bracket 5A, and the brake tubes 3A and 3B are clamped to the respective brackets 51a by a clamp member 52a. Incidentally, FIG.
Then, for convenience, the bracket 51a and the clamp member 52a
Shows only one each.

Similarly, four plate-shaped brackets 51b are erected on the bracket 5B, and each of the brackets 51b has the brake tubes 4A, 4B ,.
Each of 4C and 4D is clamped by a clamp member 52b. In FIG. 1, for convenience, only one bracket 51b and one clamp member 52b are shown.

In FIGS. 1 and 2, 6A and 6B are A, respectively.
Clamp portions are provided upright on the body 7 at the inlet side and the outlet side of the BS actuator 2, and these clamp portions 6A and 6B are attached to the body 7 by screws 71, respectively.

The clamp part 6A comprises a support part 61a having an L-shaped cross section, and a frame part 62a integrally formed with the support part 61a at the upper end of the support part 61a. A cushion rubber 8A made of a rubber-like elastic body is adhered to the frame portion 62a of 6A by baking or the like.

A locking portion 62a-1 is formed on the frame body portion 62a as shown in FIGS. 3 (a) and 3 (b).
By locking this locking portion 62a-1 to the bottom surface 62a-2 of the frame body portion 62a, the frame body portion 62a is moved to the position shown in FIG.
The frame 62a can be opened as shown in FIG. 3 (b) by releasing the locking between the locking portion 62a-1 and the bottom surface 62a-2 as shown in FIG. Is made like.

The cushion rubber 8A is composed of an upper rubber 81a which is adhered to the upper surface of the frame 62a by baking or the like and a lower rubber 82a which is also adhered to the bottom of the frame 62a by baking or the like. Made of Then, as shown in FIG. 3B, the facing surfaces 81a-1 of the upper rubber 81a and the lower rubber 82a are opposed to each other.
And 82a-1 at positions corresponding to each other, a plurality of semicircular cross sections (two in each of the facing surface 81a-1 and the facing surface 82a-1 in this embodiment) for receiving the brake tubes 3A, 3B are provided. A groove 83a is formed, and a groove (not shown) for receiving the brackets 5A, 51a and the clamp member 52a is formed. When the frame body portion 62a is closed, the brackets 5A and the like having one ends attached to the side surfaces of the brake tubes 3A and 3B and the ABS actuator 2 are provided with the groove 83a as shown in FIGS. And so on. Therefore, the brake tubes 3A, 3B and ABS
The actuators 2 are both attached to the body 7 via cushion rubber 8A. Further, since the cushion rubber 8A is shared by the ABS actuator 2 and the brake tubes 3A and 3B as described above,
The structure is larger than that of the actuator anti-vibration cushion rubber 14 or the brake tube anti-vibration cushion rubber 19 described in the “Prior Art” section.

The clamp portion 6B comprises a support portion 61b having an L-shaped cross section and a frame portion 62b integrally formed with the support portion 61b at the upper end of the support portion 61b. A cushion rubber 8B made of a rubber-like elastic material is adhered to the frame body portion 62b of the portion 6B by baking or the like.

A locking portion 62b-1 is formed on the frame body portion 62b as shown in FIGS. 4 (a) and 4 (b).
By locking this locking portion 62b-1 to the bottom surface 62b-2 of the frame body portion 62b, the frame body portion 62b is moved to the position shown in FIG.
The frame 62b can be opened as shown in FIG. 4 (b) by releasing the locking between the locking portion 62b-1 and the bottom surface 62b-2, as shown in FIG. Is made like.

The cushion rubber 8B is composed of an upper rubber 81b adhered to the upper surface of the frame 62b by baking or the like and a lower rubber 82b similarly adhered to the bottom of the frame 62b by baking or the like. Made of Then, as shown in FIG. 4B, the facing surfaces 81b-1 of the upper rubber 81b and the lower rubber 82b, respectively.
And 82b-1 at positions corresponding to each other, a plurality of semicircular sections (four in the facing surface 81b-1 and the facing surface 82b-1 in this embodiment) for receiving the brake tubes 4A to 4D are provided. A groove 83b is formed, and a groove (not shown) for receiving the brackets 5B, 51b and the clamp member 52b is formed. Then, when the frame body portion 62b is closed, as shown in FIGS. 1 and 2, the brake tube 4A to 4D and the bracket 5 to which one end of the ABS actuator 2 is attached.
B and the like are accommodated in the groove 83b and the like. Therefore, the brake tubes 4A to 4D and the ABS actuator 2 are both attached to the body 7 via the cushion rubber 8A. Also, cushion rubber 8
Since B is shared by the ABS actuator 2 and the brake tubes 3A to 3B as described above, the actuator vibration damping cushion rubber 14 or the brake tube vibration damping cushion rubber 19 already described in the "Prior Art" section. It has a large structure compared to.

In this embodiment, the brackets 5A and 5B correspond to the above-mentioned bracket portion,
The brackets 5A and 5B, the clamp portions 6A and 6B, and the cushion rubbers 8A and 8B constitute the above-mentioned attachment mechanism.

Next, the operation of the above embodiment will be described.

When hydraulic pulsation, pump operating vibration, etc. occur during ABS operation, these hydraulic pulsation, pump operating vibration, etc.
BS actuator 2 and brake tubes 3A, 3B,
4A to 4D are propagated.

The hydraulic pressure pulsation, pump operating vibration, etc. propagated to the ABS actuator 2 are transmitted to the ABS actuator 2.
Brackets 5A and 5B each having one end attached to
Propagate to. Then, the hydraulic pulsation, pump operating vibration, and the like transmitted to the brackets 5A and 5B are damped by the cushion rubbers 8A and 8B engaged with the other ends of the brackets 5A and 5B.

On the other hand, the brake tubes 3A, 3B, 4A
The hydraulic pulsation, pump operation vibration, and the like propagated to .about.4D are attenuated by the cushion rubbers 8A and 8B accommodating the brake tubes 3A, 3B, 4A to 4D, respectively.

Since each of the cushion rubbers 8A and 8B has a structure larger than that of the actuator vibration-proof cushion rubber or the brake tube vibration-proof rubber which has been conventionally provided independently of each other, as described above. That is, since the damping force of each of the cushion rubbers 8A and 8B is higher than that of the conventional cushion rubber, the hydraulic pulsation and pump transmitted to the ABS actuator 2 and the brake tubes 3A, 3B, 4A to 4D. Operational vibrations are reliably damped by the cushion rubbers 8A and 8B.

Therefore, the propagation of hydraulic pulsation and pump operating vibration to the body 7 can be suppressed, and the pump operating sound is not amplified, so that quietness is maintained.

According to the above embodiment, the cushion rubbers are commonly used for the ABS actuator and the brake tube, so that the cushion rubbers 8A and 8B are provided.
Since each of B can have a large structure, that is, the damping force of each of the cushion rubbers 8A and 8B can be increased, so that the propagation of pump pulsation to the body 7 is suppressed and the quietness is maintained. You can

Further, according to the above-described embodiment, the mounting mechanism mounts the ABS actuator and the brake tube in common with respect to the conventional mounting mechanism that separately mounts the ABS actuator and the brake tube on the body. Therefore, the number of parts, the cost, the weight, the number of assembling steps, etc. can be reduced.

Further, according to the above-described embodiment, each of the brake tubes 3A and 3B is clamped by the clamp member 52a on each bracket 51a standing on the bracket 5A, and each of the brake tubes 4A to 4D is bracket 5B. By clamping each bracket 51b which is erected on the
The weight of the ABS actuator 2 is adjusted to the brackets 5A and 5
Since it is burdened to B, the brake tubes 3A, 3
The load on B and 4A to 4D can be reduced,
Therefore, breakage of the brake tubes 3A, 3B, 4A to 4D can be prevented.

Although the above embodiment is an example in which the present invention is applied to the ABS actuator unit, the application of the present invention is not limited to this and may be applied to other brake device actuator units.

[0032]

According to the present invention, since the mounting mechanism can be configured so that the actuator and the brake tube are mounted on the vehicle via the common rubber-like elastic body, the rubber-like elastic body can be made large, that is, Since the damping force of the rubber-like elastic body can be increased, hydraulic pulsation, pump operating vibration, etc. are reliably damped by the rubber-like elastic body, and their propagation to the vehicle is suppressed. As a result, quietness can be maintained. it can.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an ABS actuator unit according to an embodiment.

FIG. 2 is a schematic perspective view corresponding to the ABS actuator unit of FIG.

FIG. 3 is a view (No. 1) showing a clamp part.

FIG. 4 is a view (No. 2) showing the clamp section.

FIG. 5 is a configuration diagram of a conventional ABS actuator unit.

[Explanation of symbols]

1 ABS actuator unit 2 ABS actuator 3A, 3B, 4A, 4B, 4C, 4D Brake tube 5A, 5B Bracket 6A, 6B Clamp part 62a, 62b Frame part 7 Body 8A, 8B Cushion rubber

Claims (1)

[Claims] 1. An actuator unit for a brake device comprising an actuator, a brake tube connected to the actuator, and an attachment mechanism for attaching the actuator and the brake tube to a vehicle, wherein the attachment mechanism is the A clamp part for clamping the brake tube, a bracket part having one end attached to the actuator, and a rubber-like elastic member incorporated in the clamp part to engage with the brake tube and the other end of the bracket part. An actuator unit for a brake device, comprising: a body.