JPH08216873A - Setup structure of brake system actuator for automobile - Google Patents

Abstract

PURPOSE: To improve operability by making the torque check operation of all ports on top of an actuator possible from one direction of the center of an engine room. CONSTITUTION: Two ports 21 and 22 connecting to a master back side and three ports 23, 24 and 25 connecting to a wheel cylinder side are installed on the top of an actuator 20 installed in a corner part surrounded by a dash panel 1, a strut housing 4 and a hood ridge panel 2 at proper intervals in the longitudinal direction, and this lined setup line L is being set up in plane jog form toward the side of the hood ridge panel 2 from the operation side at the center of an negine roan ER.

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 brake system actuator which is used in an anti-skid brake system of an automobile and controls the hydraulic fluid supplied from a master back to each wheel cylinder of front wheels and rear wheels. .

[0002]

2. Description of the Related Art FIG. 3 shows an arrangement structure of a conventional brake system actuator (hereinafter simply referred to as "actuator") of an automobile. Since the actuator 10 is one of important safety parts of the automobile, a vehicle collision occurs. In order to prevent damage, at the side of the engine room E / R opposite to the master back installation part (not shown), in the corner surrounded by the dash panel 1, strut housing 4 and hood ridge panel 2. It is arranged.

In this actuator, specifically, a tray 7 is joined and arranged on a bracket 6 which is connected to a bolt / nut 8 over a front side member 5 which is a frame member in the longitudinal direction of a vehicle body and a front wheel house 3. The tray 7 is firmly fastened and fixed by bolts and nuts (not shown).

A port 11 communicating with the primary cylinder of the master back and a port 12 communicating with the secondary cylinder are formed on the side surface of the actuator 10 on the center side of the engine room, while the upper surface communicates with the wheel cylinder of the left front wheel. The port 13 for connecting to the wheel cylinder of the right front wheel, the port 15 for connecting to the wheel cylinder of the left rear wheel, and the port 16 for connecting to the wheel cylinder of the right rear wheel are spaced at appropriate intervals in the front-rear direction. Are formed (all the primary cylinders, secondary cylinders, and wheel cylinders are not shown).

In addition to the above, the port layout of the actuator 10 is such that, as shown in FIG. 4, the ports 11 and 12 communicating with the master back side are formed on the upper surface of the actuator 10 at appropriate intervals in the front-rear direction, while the engine room There is also one in which each port 13 and 14 that communicates with the wheel cylinders of the front wheels and one port 15 that communicates with the wheel cylinders of the left and right rear wheels are formed on the side surface on the center side at appropriate intervals in the front-rear direction.

[0006] These similar structures are, for example, actual Kaihei 2-9.
It is disclosed in Japanese Patent No. 3169.

[0007]

Brake tubes (not shown) are fastened and connected to the ports 11 and 12 on the master back side and the ports 13 to 16 on the wheel cylinder side, respectively, via flare nuts, and the like. Since a torque check is performed by applying a specified torque to the brake tube fastening part with a torque wrench to prevent liquid leakage from these brake tube connection parts, considering these brake tube connection work and torque application work Originally, it is desirable that the ports 11 to 16 are originally provided collectively on either the upper surface of the actuator 10 or the side surface on the center side of the engine room.

However, since the operating angle of the torque wrench required to apply the torque is 60 ° or more, the actuator 1
If the ports 11 to 16 are simply arranged in a row in the front-rear direction with a tube connecting tool engaging operation interval on either the upper surface of 0 or the side surface on the center side of the engine room, a torque wrench may be used. When applied, the torque wrench interferes with the adjacent brake tube connected to the ports 11 to 16, the dash panel 1 or the strut housing 4, and it becomes impossible to secure a required torque wrench working angle.

From the above, after all, as described above, the ports 11 and 12 on the master back side and the ports 13 to 16 on the wheel cylinder side are provided on the side surface of the actuator 10 on the center side of the engine room and the actuator 10. There is no choice but to separate it from the upper surface of the brake wrench with sufficient space in the front-rear direction so as not to hinder the operation of the torque wrench. It is dispersed and the workability deteriorates.

Therefore, according to the present invention, the port on the master back side and the port on the cylinder wheel side can be collectively arranged in a row in the front-rear direction on the upper surface of the actuator without interfering with the work of applying the torque wrench. It is intended to provide an arrangement structure of a brake system actuator of an automobile capable of efficiently performing the connecting work and the torque wrench hanging work.

[0011]

According to the present invention, an actuator for deriving and controlling hydraulic fluid supplied from a master back side to a wheel cylinder side is provided with a dash panel, a strut housing and a hood ridge on one side of an engine room. A plurality of ports, which are arranged in a corner surrounded by the panel and which communicate with the master back side and the wheel cylinder side, are arranged on the upper surface of the actuator at appropriate intervals in the front-rear direction. The line is set to have a plane convex shape from the working side at the center of the engine room where the brake tubes are connected to each port to the hood ridge panel side.

[0012]

[Operation] A line for arranging a plurality of ports arranged in the front-rear direction on the upper surface of the actuator is set in a convex shape from the working side in the center of the engine room toward the hood ridge panel side. Since the working side in the center of the engine room has a concave shape, when rotating the tool horizontally to each port to fasten the brake tube,
The non-interference area of the tool with respect to the adjacent brake tube, dash panel, or strut housing is expanded, and the horizontal rotation angle of the tool can be sufficiently secured.

As a result, a sufficient torque wrench working angle can be secured when the torque is checked by applying a torque wrench to the brake tube at each port. Therefore, the work of connecting the brake tube and the operation of applying the torque wrench can be performed on the upper surface of the actuator. Can be done from one direction, and work efficiency is significantly improved.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the accompanying drawings by assigning the same reference numerals to the same parts as those in the conventional structure.

1 and 2, 1 is an engine room E
・ The dash panel that separates the R and the passenger compartment R, 2 is the hood ridge panel that forms the side wall of the engine room ER,
3 is a front wheel house formed by bulging toward the engine room E / R side in the hood ridge panel 2, 4 is a strut housing joined to the front wheel house 3,
Reference numeral 5 denotes a front side member which is arranged around the lower edge of the hood ridge panel 2 to the lower side of the dash panel 1 so as to be joined thereto.

A master bag (not shown) is arranged on one side of the dash panel 1, and a corner surrounded by the dash panel 1, the strut housing 4, and the hood ridge panel 2 on the opposite side of the master back arrangement side. Actuator 20 that constitutes an anti-skid brake system system
Is provided.

The actuator 20 controls the hydraulic oil supplied from the master back to each wheel cylinder (not shown) of the front wheels and the rear wheels and controls the bolts over the front side member 5 and the front wheel house 3. The tray 7 is joined and arranged on the bracket 6 to which the nut 8 is joined, and is firmly fastened and fixed on the tray 7 by bolts and nuts (not shown).

The basic structure of these is the same as the above-mentioned conventional structure, but the ports 21 and 22 connecting to the primary cylinder and the secondary cylinder of the master back and the wheel cylinder of the left front wheel are connected to the upper surface of the actuator 20. Port 23 for connecting to the wheel cylinder for the right front wheel, and one port 25 for connecting to the wheel cylinders for the left and right rear wheels in the front-rear direction with a space for engaging a torque wrench 28 described later in the front-rear direction. Are arranged in a row in a centralized manner.

Here, the line L of the ports 21 to 25 is connected to the ports 21 to 25 through the flare nuts 27 to connect the brake tubes 26.
That is, it is set in a plane convex shape from the center side of the engine room E / R toward the hood ridge panel 2 side.

In this embodiment, the ports 21 to 25 are
Although the line L is set to have a plane arc shape, it may be set to have a plane V shape.

According to the structure of the above embodiment, the brake tube 26 is provided in each of the ports 21 to 25 and the flare nut 2 is provided.
7 to form an anti-skid brake system, and finally a flare nut 27 is defined by a torque wrench 28 so as to prevent liquid leakage from the connection portion between each port 21 to 25 and the brake tube 26. Torque is applied by applying torque, but each port 21-25
Of the engine room E / R from the working side toward the hood ridge panel 2 side is formed in a plane convex shape.
Torque wrench 2
When 8 is rotated in the horizontal direction, the non-interference area of the torque wrench 28 with respect to the adjacent brake tubes 26, 26, the dash panel 1 or the strut housing 4 is widened, and as shown in FIG. Working angle α of 60 ° or more required for torque application
Can be sufficiently secured.

As a result, not only the connecting work of the brake tube 26 but also all the ports 21 to 21 by the torque wrench 28 are performed.
Since the torque check work of No. 25 can be performed on the upper surface of the actuator 20 and the work direction is one direction, the work efficiency can be remarkably improved.

The line L for each port 21 to 25 is also provided.
Since it has a plane convex shape as described above, the front-rear spacing of the ports 21 to 25 can be narrowed and the actuator 20 can be downsized as compared with the case where the ports 21 to 25 are linearly arranged in the front-rear direction. This can be realized, and the degree of freedom of the layout of arrangement between the dash panel 1 and the strut housing 4 can be expanded.

Further, since the ports 21 to 25 can be drilled in the vertical direction from the upper surface of the actuator 20, the workability can be improved and the cost can be advantageously obtained.

[0025]

As described above, according to the present invention, the following effects can be obtained.

(1) A line for arranging a plurality of ports arranged in the front-rear direction on the upper surface of the actuator is formed in a convex shape from the working side in the center of the engine room toward the hood ridge panel side. Since the installation line has a concave shape on the working side in the center of the engine room, when a tool is horizontally rotated to each port to fasten the brake tube, the adjacent brake tube, dash panel or strut housing is The non-interference area of the tool can be expanded to ensure a sufficient horizontal rotation angle of the tool.Therefore, when performing a torque check by applying a torque wrench to the brake tube at each port, a sufficient torque wrench working angle can be obtained. It is possible to secure the brake tube connection work and torque wrench hanging work from one direction on the upper surface of the actuator, Work efficiency can be significantly improved.

(2) Since the line for arranging each port is set to have a plane convex shape from the working side in the center of the engine room toward the hood ridge panel side, each port is arranged linearly in the front-rear direction. The front and rear space of the port can be narrowed compared to the above, and the actuator can be miniaturized.
The degree of freedom in the layout of the actuator between the dash panel and the strut housing can be increased.

(3) Since each port can be drilled in the vertical direction from the upper surface of the actuator, the workability can be improved and the cost can be obtained advantageously.

[Brief description of drawings]

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

FIG. 2 is a plan view of the embodiment.

FIG. 3 is a perspective view showing a conventional structure.

FIG. 4 is a perspective view showing a different example of a conventional structure.

[Explanation of symbols]

 1 Dash Panel 2 Hood Ridge Panel 4 Strut Housing 20 Actuator 21, 22 Master Back Port 23, 24, 25 Wheel Cylinder Port L L Line Line ER Engine Room

Claims (1)

[Claims] 1. An actuator for guiding and controlling hydraulic oil supplied from a master back side to a wheel cylinder side,
Arranged in a corner surrounded by the dash panel, strut housing and hood ridge panel on one side of the engine room, a plurality of ports connecting to the master back side and the wheel cylinder side are provided on the upper surface of the actuator in the front-rear direction. In addition to arranging them at appropriate intervals, the line for arranging these ports was set to be a plane convex shape from the working side in the center of the engine room where the piping is connected to each port to the hood ridge panel side. Characteristic automobile brake actuator arrangement structure.