JP3070971B2 - How to install the load-responsive brake fluid pressure control valve - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for mounting a load-responsive brake hydraulic pressure control valve on a sprung member and an unsprung member of a vehicle.

[0002]

2. Description of the Related Art Conventionally, as this kind of load-responsive brake fluid pressure control valve, for example, those described in Japanese Patent Application Laid-Open Nos. 50-132376 and 57-138460 are known. And as shown in FIG. In FIG. 5, reference numeral 1 denotes a hydraulic pressure control valve mounted via a bracket 3 to a frame 2 which is a sprung member of a vehicle;
The hydraulic pressure control valve 1 has a plunger 4 therein, and is configured to reduce the brake hydraulic pressure supplied from a master cylinder (not shown) to a wheel cylinder (not shown). One end of a bar spring member 5 is rotatably attached to the bracket 3, and the bar spring member 5 can be brought into contact with and separated from the tip end of the plunger 4 with the rotation.
The other end of the bar spring member 5 is attached via a bracket 7 to a rear axle 6 which is a vehicle unsprung member. The bar spring member 5 applies a load corresponding to a relative displacement between the frame 2 and the rear axle 6 to the plunger 4. To the hydraulic pressure control valve 1
Is controlled to reduce pressure.

In the load-responsive brake hydraulic pressure control valve having such a structure, when a load or the like is placed on the frame 2 side and the frame 2 and the rear axle 6 are displaced relative to each other, the bar spring member 5 bends. Since the predetermined portion of the member 5 is configured to abut on the tip of the plunger 4, the member 5 is positioned so as to be in such a state when mounted on a vehicle.

In the apparatus disclosed in Japanese Patent Application Laid-Open No. 57-138460, a gap bar is inserted between the tip of the plunger 4 and a predetermined portion of the bar spring member 5 to operate the hydraulic pressure control valve 1. By sounding an alarm buzzer when the plunger 4 comes into contact with the gap bar after being attached to the frame 1, an operator can use the bolt or the like to move the other end of the bar spring member 5 with reference to the position at which the buzzer sounds. It is designed to be mounted on the rear axle 6.

On the other hand, in Japanese Patent Application Laid-Open No. 50-132376, the bar spring member 5 is provisionally determined in advance at a position offset by a predetermined distance from a normal connection position with respect to the rear axle 6. The control valve 1 is attached to the frame 2 with the tip of the plunger 4 in contact with the bar spring member 5. In this apparatus, a lamp or the like is turned on when the tip of the plunger 4 comes into contact with the bar spring member 5, so that an operator is notified that the plunger 4 has come into contact with the bar spring member 5. Next, the operator positions the bar spring member 5 at a regular position on the rear axle 6 and mounts the bar spring member 5 with a bolt or the like.

[0006]

However, in such a conventional mounting method of the load-responsive brake hydraulic pressure control valve, a rod spring member interposed between the hydraulic pressure control valve 1 and the rear axle 6 is used. Based on the relative position of the plunger 5 and the plunger 4, the operator is notified by a lamp, an alarm buzzer, or the like that the relative position has become a proper position, and then the other end of the bar spring member 5 is bolted. Since the rod spring member 5 is attached to the rear axle 6, the work force of the worker is applied to the other end of the rod spring member 5, and the rod spring member 5 is bent by the work force, and the mounting position of the rod spring member 5 is actually attached. It has shifted from the position where it should be. As a result, the mounting position of the load-responsive brake hydraulic pressure control valve varies from one operator to another, causing a problem that the braking performance of the hydraulic pressure control valve deteriorates.

Therefore, according to the first aspect of the present invention, the bar spring member can be securely mounted at the specified mounting position without being affected by the work force, and the braking performance of the load-responsive brake hydraulic pressure control valve is deteriorated. If it is possible to prevent the door
It is another object of the present invention to provide a method of mounting a load-responsive brake hydraulic pressure control valve capable of improving the workability of the mounting operation .

[0008]

According to the first aspect of the present invention,
A hydraulic pressure control valve that can be attached to the sprung member of the vehicle and controls the pressure of the brake fluid supplied from the master cylinder to the wheel cylinder, and one end is connected to the hydraulic pressure control valve and the other end is a bolt and nut. A rod spring member that can be attached to the unsprung member of the vehicle, transmits a load corresponding to the relative displacement between the sprung member and the unsprung member of the vehicle to the hydraulic pressure control valve, and controls the hydraulic pressure control valve to reduce the pressure. Mounting a load-responsive brake fluid pressure control valve to a sprung member and a unsprung member of a vehicle, comprising: and it has a length corresponding to the relative distance of the unsprung member, other
Engage with the bolt at the end and rotate this bolt
Prepare a jig provided with a rotation regulating portion for regulating , after attaching the hydraulic pressure control valve to the sprung member of the vehicle in advance, attach one end of the jig to a predetermined position of the sprung member of the vehicle, Attach the other end of the jig to the other end of the bar spring member ,
With the rotation restricting portion of the jig engaged with the bolt
The nut is screwed into the bolt to form a bar spring portion.
In order to achieve the above object, the other end of the material is attached to the unsprung member of the vehicle .

[0009]

[0010]

According to the first aspect of the present invention, the length corresponding to the relative distance between the sprung member and the unsprung member of the vehicle in the vehicle state at the time of mounting the vehicle on the load-responsive brake hydraulic pressure control valve is determined.
Has one end engaged with the bolt and rotating the bolt
A jig provided with a rotation restricting portion for regulating is prepared, and a hydraulic pressure control valve is mounted on a spring of the vehicle in advance. Then, one end of the jig is mounted on a predetermined portion of a sprung member of the vehicle, and the jig is fixed. in a state of mounting the other end portion to the other end portion of the rod spring member, the
The other end of the bar spring member is mounted on the vehicle with bolts and nuts.
When attaching to the unsprung member of
Screw the nut onto the bolt with the control part engaged with the bolt
The other end of the bar spring member is
To be mounted on

Accordingly, the bar spring member is positioned by the jig at a distance corresponding to the relative position of the sprung member and the unsprung member when the vehicle is mounted, and the other end of the bar spring member is positioned at the other end.
The jig is attached to the unsprung member by bolts and nuts engaged with the rotation restricting portion . As a result, when the other end portion of the rod spring member is attached to the unsprung member, it is securely attached to the mounting position specified without flexing the rod spring member be working force is applied to the worker at the other end Along with the jig
The function of the bolt rotation stop tool is also used by the rotation restriction part
And the other end of the bar spring member is attached to the unsprung member
The workability of the mounting work at the time is improved.

[0012]

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments.
1 to 4 are views showing an embodiment of a mounting structure of a load-responsive brake fluid pressure control valve for achieving a method of mounting the load-responsive brake fluid pressure control valve according to the present invention, and FIG. 2 shows a state in which the responsive brake fluid pressure control is mounted on a vehicle.

First, the configuration will be described. In FIG. 1, 11
Denotes a hydraulic pressure control valve. The hydraulic pressure control valve 11 has a plunger inside, not shown, and controls the pressure of a brake hydraulic valve supplied from a master cylinder, not shown, to a wheel cylinder, not shown, according to the operation of the plunger. It is supposed to. The hydraulic pressure control valve 11 is attached to a bracket 13 by bolts 12 as shown in FIG. 2, and the bracket 13 is fixed to a frame 14 as a sprung member of the vehicle.

One end of a bar spring member 15 is rotatably mounted on the upper part of the hydraulic pressure control valve 11.
Although not shown, one end thereof can be brought into contact with and separated from the plunger with its rotation. A fixing member 17 is attached to the other end of the bar spring member 15 by a bolt 16, and the fixing member 17 is provided with a bolt 18 at a lower end as shown in FIG.

The bolt 18 is fitted in an elongated hole 19a formed in the bracket 19, and a nut 20 is screwed into the bolt 18 so that the fixing member 17 is attached to the bracket 19. The bracket 19 is fixed to a rear axle 21 as an unsprung member, and a load-responsive brake hydraulic pressure control valve including the hydraulic pressure control valve 11 and the rod spring member 15 is interposed between the frame 14 and the rear axle 21. ing. For this reason, the rod spring member 15 transmits a load corresponding to the relative displacement between the frame 14 and the rear axle 21 to the plunger, and the brake pressure is controlled by the hydraulic pressure control valve 11 in accordance with the relative displacement between the frame 14 and the rear axle 21 of the vehicle. Pressure reduction can be controlled.

On the other hand, a hole 14a is formed at a predetermined position of the frame 14, and a jig as shown in FIG.
A protruding portion 22a formed at one end of the 22 is fitted. The other end of this jig 22 has a head 18 of a bolt 18
A fitting hole 22b as a rotation restricting portion having the same shape as that of the bolt 18a (in this embodiment, a hexagonal shape) is provided, and the head 18a of the bolt 18 is fitted into the fitting hole 22b. It is being regulated.

The jig 22 has a length such that the distance between the projecting portion 22a and the insertion hole 22b corresponds to the distance between the frame 14 and the rear axle 21 when the load-responsive brake hydraulic pressure control valve is mounted on the vehicle. The protrusion 22a and the fitting hole 22 are formed.
When the b is fitted into the hole 14a and the head 18a of the bolt 18, respectively, the fixing member 17 is moved in advance to the frame 14 and the rear axle 21 during the vehicle mounting operation of the load-responsive brake hydraulic pressure control valve.
It is positioned so as to be in a position corresponding to the distance between them.

Next, a method of mounting such a load-responsive brake fluid pressure control valve on a vehicle will be described. First,
The operator mounts the hydraulic control valve 11 on the bracket 13 with the bolt 12.
, The hydraulic pressure control valve 11 is mounted on the frame 14. Next, the bolt 18 is fitted into the elongated hole 19a. Next, the projecting portion 22a of the jig 22 is fitted into the hole 14a, and the fitting hole 22b is fitted into the head 18a of the bolt 18, thereby setting the relative position of the head 18a of the bolt 18 with respect to the frame 14. The nut 20 is screwed into the bolt 18 with a wrench or the like, and the fixing member 17 is fixed to the bracket 19. Next, the jig 22 is removed from the hole 14a and the head 18a. For this reason,
The fixing member 17 is attached to the rear axle 21 via the bracket 19, and the load-responsive brake hydraulic pressure control valve is
And the rear axle 21.

As described above, in the present embodiment, a jig 22 having a length corresponding to the distance between the frame 14 and the rear axle 21 at the time of mounting the vehicle on the load-responsive brake hydraulic pressure control valve is prepared, and the hydraulic pressure control valve is controlled in advance. After attaching the valve 11 to the frame 14, the jig
The mounting member 22 is attached to the hole 14a of the frame 14 and the fitting hole 22b is attached to the bolt 18a.
17 is mounted on the rear axle 21, so that the bar spring member 15 can be positioned at a distance corresponding to the relative position of the frame 14 and the rear axle 21 at the time of mounting the vehicle, and also supported by the jig 22. Thus, the fixing member 17 can be attached to the rear axle 21. As a result, the fixing member 17
Can be securely mounted at a specified mounting position without bending the bar spring member 15 even when an operator's working force is applied to the bolt 18 when mounting the rear axle 21. Thus, it is possible to prevent the braking performance of the load-responsive brake hydraulic pressure control valve from deteriorating. Further, since the other end of the jig 22 is provided with an insertion hole 22b which is inserted into the head 18 of the bolt 18 to restrict the rotation of the bolt 18, when the fixing member 17 is attached to the bracket 19 by the bolt 18 and the nut 20, , The bar spring member 15 by the jig 22
The function of the rotation stopping tool of the bolt 18 can be used together with the positioning function of the bolt 18, and the workability of the mounting operation when the fixing member 17 is mounted on the rear axle 21 via the bracket 19 can be improved.

In this embodiment, the fitting hole 22b is formed in a hexagonal shape. However, the fitting hole 22b may be formed to have a two-plane width in contact with two opposing sides of the head 18a of the bolt 18. Alternatively, the rotation restricting portion is configured by the fitting hole 22b, but is not limited thereto.
A bolt having a hexagonal hole at the head of the bolt may be used, and a hexagonal rod fitted into this hole may be used. The point is that the rotation of the bolt 18 can be restricted.

According to the first aspect of the present invention, the load-responsive brake hydraulic pressure control valve has a length corresponding to the relative distance between the sprung member and the unsprung member of the vehicle in the vehicle state at the time of mounting the vehicle. , The bolt is rotated by engaging the bolt at one end
Prepare a jig with a rotation regulating part that regulates
After the hydraulic pressure control valve is mounted on the spring of the vehicle in advance, one end of the jig is mounted on a predetermined portion of the sprung member of the vehicle, and the other end of the jig is mounted on the other end of the rod spring member. With the rod spring member attached, the other end of the bar spring
Therefore, when it is mounted on the unsprung member of the vehicle,
With the rotation restricting part of the tool engaged with the bolt,
Screw the other end of the bar spring member to the vehicle.
It is designed to be attached to the unsprung member. Therefore, cure
The sprung member and the spring when the bar spring member is mounted on the vehicle by the tool
If it can be positioned at a distance according to the relative position of the lower member
In addition, the rotation stopper of the jig is used to stop the rotation of the bolt.
Function can be used together. As a result, the bar spring member
The bar spring member bends even when the worker's work force is applied to the other end of the
First, it can be securely mounted at the specified mounting position.
Therefore, the load-responsive brake fluid pressure control valve when mounted on a vehicle
Can prevent the brake performance from deteriorating
, When the bar spring member is attached to the unsprung member
The workability of the work can be improved.

[0023]

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing one embodiment of a mounting structure of a load-responsive brake hydraulic pressure control valve for achieving a method of mounting a load-responsive brake hydraulic pressure control valve according to the first and second aspects of the present invention; It is.

FIG. 2 is a main part configuration diagram of a hydraulic pressure control valve and a bracket as viewed from a direction A in FIG. 1;

FIG. 3 is a configuration diagram of a fixing member and a bracket as viewed from a direction B in FIG. 1;

FIG. 4 is a configuration diagram of a jig, (a) is a front view thereof,
(B) is a side view thereof.

FIG. 5 is a configuration diagram of a mounting structure of a conventional load-responsive brake hydraulic pressure control valve.

[Explanation of symbols]

 11 Hydraulic pressure control valve 14 Frame (sprung member) 15 Bar spring member 18 Bolt 18a Head 20 Nut 21 Rear axle (unsprung member) 22 Jig 22b Fitting hole (rotation restricting part)

Claims (1)

(57) [Claims] 1. A hydraulic pressure control valve which can be attached to a sprung member of a vehicle and controls a pressure of a brake fluid supplied from a master cylinder to a wheel cylinder. The part can be attached to the unsprung member of the vehicle with bolts and nuts, and transmits a load corresponding to the relative displacement between the sprung member and the unsprung member of the vehicle to the hydraulic pressure control valve to control the pressure of the hydraulic pressure control valve. A method of mounting a load-responsive brake fluid pressure control valve comprising a bar spring member to a sprung member and a unsprung member of a vehicle, wherein the load-responsive brake fluid pressure control valve is mounted in a vehicle at the time of mounting the vehicle. It has a length corresponding to the relative distance between the sprung member and the unsprung member of the vehicle, and the other end is connected to the bolt.
A rotation restricting part that restricts the bolt from rotating
Prepare formed fixture, after attaching the pre-pressure control valve in sprung member of the vehicle, the
It is attached to one end of the jig at a predetermined position of the sprung member of the vehicle, preparative other end of the jig at the other end of the rod spring member
And the rotation restricting portion of the jig was engaged with the bolt.
The nut is screwed into the bolt in the state
Attach the other end of the spring member to the unsprung member of the vehicle.
How to install the load-responsive brake hydraulic pressure control valve
Law.