JPH11125272A - Arranging structure of reservoir tank for brake and clutch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily perform liquid quantity checking and oil feeding work of a reservoir tank by arranging the reservoir tank to supply a hydraulic fluid to a brake master cylinder and a clutch master cylinder, in a top part of a strut tower in front of a cowl box. SOLUTION: In a brake master cylinder 20 and a clutch master cylinder 22, primary and secondary respective oil feeding ports 20a and 20b are protrusively arranged in an upper side part of the brake master cylinder 20, and a single oil feeding port 22a is also protrusively arranged in an upper side part of the clutch master cylinder 22. While, a bracket 23 is fixedly arranged in a front side part of a top part of a strut tower 3, and a reservoir tank 24 to supply a hydraulic fluid to the brake master cylinder 20 and the clutch master cylinder 22 is stationarily fixed on this bracket 23. Therefore, a cowl box 9 does not become a hindrance at liquid quantity checking and oil feeding work time of the reservoir tank 24.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an arrangement structure of a reservoir tank for a brake and a clutch of an automobile.

[0002]

2. Description of the Related Art As is well known, both a brake master cylinder and a clutch master cylinder are disposed on a dash panel so as to protrude toward an engine room, and a reservoir tank is integrally attached to each of the brake master cylinder and the clutch master cylinder. I have.

[0003]

Some automobiles include, for example, as disclosed in Japanese Patent Application Laid-Open No. 5-69858.
It is known that the cowl box at the upper part of the dash panel is provided so as to protrude toward the engine room side from the dash panel for the reason of the shape of the vehicle body, but in such a vehicle body front structure, the cowl box is provided with the dash panel. Since the upper part is in the overhang state, it is difficult to check the liquid amount of each reservoir tank of the brake master cylinder and the clutch master cylinder and to refuel the reservoir tank.

Accordingly, the present invention provides an arrangement structure of a reservoir tank for a brake and a clutch which can easily check the liquid level of a reservoir tank and perform refueling work even in a vehicle having a cowl box structure of an overhang type. .

[0005]

According to the first aspect of the present invention, in the vehicle body front structure in which a cowl box on an upper portion of a dash panel is provided so as to protrude toward the engine room from the dash panel, A reservoir tank for supplying hydraulic oil to a brake master cylinder and a clutch master cylinder disposed on the dash panel so as to project toward the engine room on the top of the adjacent strut tower, and a supply port for brake and a brake supply port of the reservoir tank are provided. The oil supply port of the master cylinder is connected with a brake tube, and the oil supply port of the clutch and the oil supply port of the clutch master cylinder are connected with a clutch tube.

According to a second aspect of the present invention, the rear surface of the reservoir tank according to the first aspect is formed obliquely toward the brake master cylinder and the clutch master cylinder.
The brake supply port and the clutch supply port are arranged adjacent to each other in order from the position closest to the brake master cylinder on the rear side surface.

[0007] In the invention of claim 3, claims 1 and 2
Wherein the reservoir tank described in (1) is disposed at the front side of the top of the strut tower.

[0008] In the invention of claim 4, claims 1 to 3 are provided.
The reservoir tank described in (1) is disposed at the top of the strut tower via a bracket, and other piping is clamped and fixed to the bracket through the lower side of the brake tube and the clutch tube.

[0009]

According to the first aspect of the present invention, even if the cowl box is overhanging toward the engine room on the upper side of the dash panel, hydraulic oil is supplied to the brake master cylinder and the clutch master cylinder. The reservoir tank to be supplied is located at the top of the strut tower in front of the cowl box, so that maintenance work can be easily performed without disturbing the cowl box when checking the liquid level of the reservoir tank and refueling work. Can be.

In addition, since the reservoir tank is provided separately from the master cylinder, and one reservoir tank is commonly used for the brake master cylinder and the clutch master cylinder to supply the hydraulic oil, the brake master cylinder and the master cylinder are supplied separately. The structure of the clutch master cylinder can be simplified.

Further, the reservoir tank is provided at the top of a strut tower which does not interfere even when the engine accessories move backward during a vehicle collision, and the strut tower controls the crush deformation stroke of the front part of the vehicle body. Since the skeletal member of the front portion is formed and the collapse deformation of the vehicle body does not easily reach the strut tower, it is possible to protect the reservoir tank and avoid the failure of the brake system and the clutch system. Can be.

According to the invention described in claim 2, according to claim 1,
In addition to the effects of the invention, the piping work can be easily performed without the brake tube and the clutch tube intersecting, and the piping length of the brake tube and the clutch tube can be shortened as much as possible. In addition, the layout can be advantageously obtained.

According to the third aspect of the present invention, in addition to the effects of the first and second aspects of the present invention, since the reservoir tank is located at the most visible position on the front side of the top of the strut tower, the maintainability is further improved. Can be.

According to the fourth aspect of the present invention, the bracket can be effectively used as a mounting bracket for other pipes, which is advantageous in terms of cost, and the other pipes are important security parts. Since it does not exist above a certain brake tube and clutch tube, security can be improved.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a dash panel for separating an engine room and a passenger compartment; 2, a hood ridge panel constituting a side wall of the engine room; The strut tower 4 is disposed on the lower side of the hood ridge panel 2 and the front side member is disposed in the front-rear direction. The strut tower 5 is disposed on the upper side of the hood ridge panel 2 in the front-rear direction. A gusset 6 is joined and reinforced at a joint portion with the top of the tower 3, and a front fender panel 7 is fastened and fixed to the hood ridge upper reinforce 5 with bolts and nuts 8.

Numeral 9 denotes a cowl box which is joined and disposed above the dash panel 1 and functions as a frame member in the vehicle width direction at the front waist portion of the vehicle body and as an outside air introduction portion of an air conditioner (not shown). ,
Cowl top panel 11 and cowl front panel 1
And 2.

A cowl front extension 13 is provided at the upper end of the cowl front panel 12 to extend forward, that is, toward the engine room side from the dash panel 1, and the front end of the cowl top panel 11 projects forward and upward. Then, the lower edge of the front window panel 14 is bonded and fixed on the front end with an adhesive 15.

The cowl front extension 13
Is formed separately from the cowl front panel 12 as a separate part, and its rear edge is fastened and fixed to the connecting piece 12a provided on the upper edge of the cowl front panel 12 by a bolt / nut 16. Extension 1
3 as a matter of course may be formed integrally with the cowl front panel 12.

This cowl front extension 13
A cowl cover 17 made of a synthetic resin material is disposed between the front edge of the front window panel 14 and the lower edge of the front window panel 14.

On the side of the dash panel 1 on the engine room side, a brake master back 21 having, for example, a tandem type brake master cylinder 20 attached to the front side thereof is projected and arranged. The clutch master cylinder 22 is disposed protruding adjacently.

Each of the brake master cylinder 20 and the clutch master cylinder 22 is different from the conventional brake master cylinder in which a reservoir tank is integrally provided.
Primary and secondary oil supply ports 20a and 20b are projected from an upper part of the cylinder master cylinder 0, and one oil supply port 22a is projected from an upper part of the clutch master cylinder 22.

On the other hand, a bracket 23 is fixed on the front side of the top of the strut tower 3, and the reservoir tank 2 for supplying hydraulic oil to the brake master cylinder 20 and the clutch master cylinder 22 is provided on the bracket 23.
4 is fixed in place.

The rear side of the reservoir tank 24 is formed obliquely toward the brake master cylinder 20 and the clutch master cylinder 22, and the rear side is provided with the oil supply port 20.
a, 20b, and 22a, three oil supply ports are arranged in a row in the horizontal direction. The brake oil supply ports for the secondary and primary brakes are arranged in order from the position closest to the secondary oil supply port 20b at the tip end of the brake master cylinder 20. The oil supply ports 24b, 24a and the clutch supply port 24c are arranged adjacent to each other, and the secondary side, primary side brake supply ports 24b, 24a and the corresponding secondary side, primary side of the brake master cylinder 20, Each of the oil supply ports 20b and 20a is connected by a brake tube 25, and the clutch supply port 24c and the oil supply port 22a of the clutch master cylinder 22 are connected by a clutch tube 26.

Since the clutch tube 26 is longer than the brake tube 25, a piping bracket 27 having an intermediate portion fixed to the dash panel 1 with bolts and nuts 28 is provided.
Is supported and fixed by a tube clamp 29.

In the vicinity of the top of the strut tower 3, other pipes, for example, an air conditioning pipe 30 are routed in the front-rear direction. The air conditioning pipe 30 fixes the reservoir tank 24 at the strut tower 3 portion. It is supported and fixed by a hose clamp 31 to an extension 23 a provided on the front side of the bracket 23, and is routed under the brake tube 25 and the clutch tube 26. Hose clamp 3
It is supported and fixed at 2.

In FIG. 1, reference numeral 33 denotes a radiator reservoir tank, reference numeral 34 denotes a relay box, and reference numeral 35 denotes a power steering tank, all of which are mounted on the front shelf of the hood ridge panel 2. Reference numeral 36 denotes an engine mount bracket.

According to the structure of the above-described embodiment, even if the cowl box 9 is overhanging toward the engine room on the upper side of the dash panel 1, the dash panel 1 is located below the cowl box 9. The reservoir tank 24 that supplies hydraulic oil to the brake master cylinder 20 and the clutch master cylinder 22 protrudingly arranged on the front surface includes:
Since the cowl box 9 is disposed at the top of the strut tower 3 in front of the cowl box 9, the maintenance work can be easily performed without obstructing the cowl box 9 at the time of checking the liquid level of the reservoir tank 24 and refueling work. .

Further, since the reservoir tank 24 is provided separately from the master cylinder, and one reservoir tank 24 is commonly used for the brake master cylinder 20 and the clutch master cylinder 22, the hydraulic oil is supplied. The structure of the brake master cylinder 20 and the clutch master cylinder 22 can be simplified.

Further, the reservoir tank 24 is provided at the top of the strut tower 3 which does not interfere even if the engine accessories move backward during a vehicle collision, and the strut tower 3 reduces the crush deformation stroke of the front part of the vehicle body. Since the skeletal member at the front portion of the vehicle body to be regulated is formed, and the crush deformation of the vehicle body hardly reaches the strut tower 3, the reservoir tank 24 can be protected and the brake system and the clutch system fail. Can be avoided.

In this embodiment, the rear side of the reservoir tank 24 is formed obliquely toward the brake master cylinder 20 and the clutch master cylinder 22, and the secondary side and the primary side brake are formed on the rear side. Supply ports 24b, 24a and the clutch supply port 24c are arranged adjacent to the secondary refueling port 20b of the brake master cylinder 20 in this order, so that the brake supply ports 24a, 24b
Tubes 25 and 25 connecting the oil supply ports 20a and 20b on the primary and secondary sides of the brake master cylinder 20, and the clutch supply port 24c and the oil supply port 22 of the clutch master cylinder 22.
a, the piping work can be easily performed without crossing the clutch tubes 26 connected to each other, and the piping lengths of the brake tube 25 and the clutch tube 26 can be made as short as possible. It can be obtained advantageously.

The reservoir tank 24 is mounted on the bracket 2
Since the strut tower 3 is disposed at the most visible position on the front side of the top of the strut tower 3, the above-described maintainability can be further improved.

In addition, the front extending portion 23 of the bracket 23
Since the air-conditioning pipe 30 is supported and fixed to a by a hose clamp 31 and the bracket 23 is effectively used as a mounting bracket for other pipes, the air-conditioning pipe 30 is of course advantageous in terms of cost. It is possible to improve the security because the air conditioning piping 30 does not exist above the brake tube 25 and the clutch tube 26 by being routed under the brake tube 25 and the clutch tube 26 which are important security parts. it can.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 1 dash panel 3 strut tower 9 cowl box 20 brake master cylinder 20a, 20b oil supply port 22 clutch master cylinder 22a oil supply port 23 bracket 24 reservoir tank 24a, 24b supply port for brake 24c supply port for clutch 25 brake tube 26 clutch tube 30 and others Plumbing

Claims (4)

[Claims] In a vehicle body front structure in which a cowl box on an upper portion of a dash panel is provided so as to protrude toward an engine room side from the dash panel, an engine room is provided on a top of a strut tower close to the cowl box. A reservoir tank that supplies hydraulic oil to the brake master cylinder and the clutch master cylinder that protrudes to the side is disposed, and a brake supply port of the reservoir tank and an oil supply port of the brake master cylinder are connected by a brake tube. A structure for disposing a reservoir tank for a brake and a clutch, wherein a supply port for a clutch and an oil supply port of a clutch master cylinder are connected by a clutch tube. 2. A rear side surface of a reservoir tank is formed obliquely toward a brake master cylinder and a clutch master cylinder, and a brake supply port and a clutch supply port are sequentially arranged from a position closest to the Brekey master cylinder on the rear side surface. 3. The device according to claim 1, wherein
Structure for disposing the reservoir tank for brakes and clutches described in (1). 3. The strut tower according to claim 1, wherein the reservoir tank is disposed at a front portion of a top portion of the strut tower.
Structure for disposing the reservoir tank for brakes and clutches described in (1). 4. The storage tank according to claim 1, wherein the reservoir tank is disposed at the top of the strut tower via a bracket, and other piping is clamped and fixed to the bracket through the lower side of the brake tube and the clutch tube. The arrangement structure of the reservoir tank for brake and clutch according to any one of claims 1 to 3.