Brake device

Abstract

To enable a hose through which a main reservoir tank is connected to a sub reservoir tank to be easily assembled.SOLUTION: A master cylinder 2 is arranged on a front surface of a brake booster 1 mounted on a dash panel 11 which is hard to visually observe due to a cowl inner 13 and piping 16. A sub reservoir tank 3 is arranged on the master cylinder 2, and a main reservoir tank 5 is provided at a position away from the sub reservoir tank 3, where the main reservoir tank 5 is connected to the sub reservoir tank 3 through a hose 4. A clamp 23 for the hose that opens toward a front side of a vehicle is provided on an upper surface of the sub reservoir tank 3. The hose that comes in a vehicle width direction across a front surface of a brake booster 1 is pushed into a rear side, toward an opening 24 of the clamp 23 with the upper surface of the sub reservoir tank 3 as a guide and is fitted into the clamp 23.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a braking device including a main reservoir tank and a sub-reservoir tank.

Background Art

[0002] The braking device includes a brake booster, a master cylinder, and a reservoir tank, which are arranged in the engine room. The brake booster is attached to the dash panel at the rear of the engine room, the master cylinder is attached to the front surface of the brake booster, and the reservoir tank is provided on the master cylinder.

[0003] Here, a part of the cowl member protrudes forward on the dash panel, and since the master cylinder is located below the cowl member, the reservoir tank is installed in a place where refueling work is difficult. Therefore, in consideration of workability, a braking device in which the reservoir tank is divided into two is described in Patent Document 1. A sub-reservoir tank is provided on the master cylinder, and a main reservoir tank is provided at a position in front away from the sub-reservoir tank. The sub-reservoir tank and the main reservoir tank are connected by a hose.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] Inside the engine room, various pipes are routed. At the rear of the engine room, the pipes of the air conditioner are arranged, and these pipes pass above the sub-reservoir tank starting from near the main reservoir tank. Therefore, the installation location of the main reservoir tank is restricted, and the hose cannot be arranged in a straight line, resulting in the hose being routed in a roundabout way and becoming longer. It is necessary to lock such a hose in the middle. However, when assembling the hose using a harness clip, the cowl member or the like gets in the way, making it difficult to visually inspect and causing the work to be difficult.

[0006] In view of the above, an object of the present invention is to provide a braking device capable of easily assembling a hose connecting a main reservoir tank and a sub-reservoir tank.

Means for Solving the Problem

[0007] In the braking device of the present invention, a master cylinder is arranged on the front surface of a brake booster arranged on a dashboard that is difficult to visually inspect due to a cowl, pipes, etc. inside the engine room. A sub-reservoir tank is provided on the master cylinder, and a main reservoir tank is provided at a position away from the sub-reservoir tank. The main reservoir tank is connected to the sub-reservoir tank by a hose. On the upper surface of the sub-reservoir tank, a clamp for the hose that opens toward the front of the vehicle is provided, and the hose is fitted into the clamp across the front surface of the brake booster in the vehicle width direction.

[0008] Since the clamp on the upper surface of the sub-reservoir tank opens toward the front, by pushing the hose backward along the upper surface of the sub-reservoir tank, even if the clamp is difficult to see due to the cowl member, the upper surface of the sub-reservoir tank serves as a guide, and the hose reaches the opening of the clamp, enabling the hose to be easily fitted into the clamp.

Effect of the Invention

[0009] According to the present invention, by providing a clamp that opens forward on the upper surface of the sub-reservoir tank, the hose can be easily assembled even if the sub-reservoir tank is difficult to see due to the cowl member.

Brief Description of the Drawings

[0010]

Figure 1

Figure 2

Figure 3

Figure 4

Mode for Carrying Out the Invention

[0011] The braking device according to the embodiment of the present invention is shown in FIGS. 1 to 3. The braking device includes a brake booster 1 to which a brake pedal is connected, a master cylinder 2 connected to the brake booster 1, a sub-reservoir tank 3 connected to the master cylinder 2, and a main reservoir tank 5 connected to the sub-reservoir tank 3 by a hose 4. This braking device is disposed at the rear part in the engine room 10. At the rear end of the engine room 10, a dash panel 11 that separates the engine room 10 from the passenger compartment is provided. A cowl member 12 is provided above the dash panel 11, and a cowl inner 13 of the cowl member 12 is provided so as to protrude into the engine room 10 toward the front of the vehicle.

[0012] The brake booster 1 is attached to the dash panel 11, and the master cylinder 2 with the sub-reservoir tank 3 integrally provided on the upper surface is attached to the front surface of the brake booster 1 slightly obliquely upward. The master cylinder 2 and the sub-reservoir tank 3 are located below the cowl inner 13.

[0013] The main reservoir tank 5 is provided at a distant position in front of the sub-reservoir tank 3 and is located in front of the cowl inner 13. The main reservoir tank 5 is placed on the bracket 14, and the bracket 14 is attached to the suspension tower 15 which is a vehicle member.

[0014] A fuel filling port 20 is provided on the outer side closer to the vehicle width direction at the rear part of the main reservoir tank 5. One end of the hose 4 is inserted into the fuel filling port 20, and the hose 4 is fixed by a clip 21. The fuel filling port 22 of the sub-reservoir tank 3 is provided on the inner side part in the vehicle width direction, the other end of the hose 4 is inserted, and it is fixed by the clip 21.

[0015] There is a pipe 16 for the air conditioner between the main reservoir tank 5 and the sub-reservoir tank 3. This pipe 16 passes under the main reservoir tank 5 towards the rear, rises between the main reservoir tank 5 and the sub-reservoir tank 3, and crosses obliquely above the front of the sub-reservoir tank 3 in the vehicle width direction. The hose 4 is arranged so as to bypass the pipe 16 for the air conditioner. That is, the hose 4 connected to the main reservoir tank 5 heads towards the rear brake booster 1 while avoiding the pipe 16 for the air conditioner, is bent in an L shape towards the inner side in the vehicle width direction in front of the brake booster 1, passes above the sub-reservoir tank 3, crosses in front of the brake booster 1, crosses over the sub-reservoir tank 3, and is bent in a U shape towards the inner side part of the sub-reservoir tank 3. Therefore, the pipe 16 for the air conditioner passes obliquely above the hose 4.

[0016] In this way, a clamp 23 is provided on the sub-reservoir tank 3 to hold the long-running hose 4 in the middle. As shown in FIG. 4, the clamp 23 is formed in a U shape, an opening 24 is formed towards the front of the vehicle, and it is fixed to the upper surface of the sub-reservoir tank 3. The clamp 23 is arranged slightly away from the front surface of the brake booster 1 and is at a lower position behind the pipe 16 for the air conditioner that crosses in front of the brake booster 1.

[0017] When installing the above braking device, the brake booster 1 with the master cylinder 2 and the sub-reservoir tank 3 attached is attached to the dash panel 11. The main reservoir tank 5 with the hose 4 and the bracket 14 is fixed to the suspension tower 15. At this point, the piping 16 for the air conditioner is not yet installed.

[0018] After that, the operator routes the hose 4 and assembles it to the sub-reservoir tank 3. At this time, the sub-reservoir tank 3 is located below the cowl member 12 and the piping 16 and is difficult to see. However, when the hose 4 is pushed backward using the upper surface of the sub-reservoir tank 3 as a guide, the hose 4 hits the clamp 23 and enters the opening 24 as it is, and is fitted into the clamp 23, and the hose 4 is locked. In this way, even if the clamp 23 is difficult to see, the hose 4 can be easily brought close to the opening 24 of the clamp 23 and fitted using the upper surface of the sub-reservoir tank 3 as a guide. Then, the other end of the hose 4 is inserted into and fixed to the fuel supply port 22 of the sub-reservoir tank 3. When the hose 4 is locked to the clamp 23, the other end of the hose 4 is held near the sub-reservoir tank 3, so the hose 4 can be easily inserted.

[0019] Here, when the operator tries to assemble the hose 4 with an excessive load, the front surface of the brake booster 1 comes into contact with the operator's hand, suppressing an excessive load from being applied to the hose 4, the clamp 23, and the sub-reservoir tank 3, and preventing damage to these components. Also, even if the clamp 23 is pushed in and bent backward, displacement beyond a certain level is suppressed by abutting against the front surface of the brake booster 1, preventing damage to the clamp 23.

[0020] Also, even if the hose 4 becomes longer, the hose 4 can be fixed not only at both ends of the hose 4 but also on the sub-reservoir tank 3, so the hose 4 can be firmly assembled and is not easily detached even when vibration or the like is applied. Moreover, as the hose 4 becomes longer, there is an effect of suppressing vibration, reducing the influence of vibration on each reservoir tank 3, 5, and making it easy to ensure a sufficient amount of brake fluid.

[0021] Note that the present invention is not limited to the above-described embodiment, and it goes without saying that many modifications and changes can be made to the above-described embodiment within the scope of the present invention. The clamp 23 is formed separately from the sub-reservoir tank 3, but it may be integrally formed with the sub-reservoir tank 3.

Explanation of Reference Numerals

[0022] 1 Brake booster 2 Master cylinder 3 Sub-reservoir tank 4 Hose 5 Main reservoir tank 10 Engine room 11 Dash panel 12 Cowl member 13 Cowl inner 23 Clamp 24 Opening

Claims

【Claim 1】 A master cylinder is provided on the front surface of a brake booster set on a dash panel that separates an engine room from a passenger compartment. A sub-reservoir tank is provided on the master cylinder. A main reservoir tank is provided on a vehicle member in the engine room away from the sub-reservoir tank. The main reservoir tank is a brake device connected to the sub-reservoir tank by a hose. On the upper surface of the sub-reservoir tank, a clamp for a hose that opens toward the front of the vehicle is provided. The hose is fitted into the clamp across the front surface of the brake booster in the vehicle width direction. A brake device characterized by this.

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