JPH081996Y2 - Car parking brake system - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention is an automobile in which there is no backlash in the joint between the equalizer and the cable and the size of the equalizer can be reduced in connection therewith. Related to the parking brake device.

(Prior Art) A general structure of an automobile parking brake device is
As shown in FIG. 6, between the parking brake lever 1 provided in the passenger compartment and the brake mechanisms 4 and 5 provided on the left and right wheels 2 and 3, cables 7 and 8 in which an equalizer 6 is arranged in an intermediate portion are provided. It is designed to be connected by means of 9 (see Japanese Utility Model Publication No. 61-24262 as prior art). The brake mechanisms 4 and 5 for the wheels 2 and 3 are the rear wheels located on the left and right of the vehicle body.
Since it is provided in two or three, the connection with one parking brake lever 1 is provided with an equalizer 6 in the middle and branched into two. As will be described later, the structure of the equalizer 6 is such that two plate members are partially joined or one plate member is bent in a U shape to form a portion between the opposing plates, and a brake portion is provided at this portion. Cables linked to mechanisms 4 and 5
It has a structure that connects the ends of 8 and 9. Reference numeral 10 denotes a spring for returning the equalizer 1 to its original position when the force of pulling the equalizer 1 is released.

FIG. 7 and FIG. 8 show an example of the equalizer 6. As described above, the equalizer 6 applies the pulling force generated by the operation of the single parking brake lever 1 to the left and right wheels 2,
Since it is distributed to the brake mechanisms 4 and 3, the hole 11 for receiving the cable 7 on the parking brake lever 1 side is provided at the center, and the wheels 2 and 3 are provided on both sides thereof.
Holes 1 to receive cables 8 and 9 linked to the brake mechanisms 4 and 5
2,13 are provided. As the form of the equalizer 6, as described above, two plate materials are partially joined, or
The plate material is bent in a U-shape to form a portion between the opposing plates. As shown in FIG. 8, two plate materials 14 and 15 are pressed into a stepped shape, Butt 1
It is formed by joining 6 and 17 by spot welding. The portion between the abutting portions 16 and 17 and the portions on both sides are expanded, and holes 11, 12, and 13 are provided in this portion.

9 and 10 show the structure of the portion of the cables 8 and 9 that is connected to the equalizer 6. First, in the case of FIG. 9, a metal cylindrical body 18 is provided as an equalizer connecting portion, a diametrical hole is bored in this cylindrical body 18, and a cable 8 (9) is inserted into this hole and welded or caulked. It is fixed by. This cylinder 18 is used as the hole 12 of the equalizer 6.
The cable 8 (9) can be coupled to the equalizer 6 by inserting it into the (13). In FIG. 10, a hole is provided in the axial direction of the cylindrical body 19, and the cable 8 (9) is inserted into this hole and then fixed by caulking or the like. In this case, the connection to the equalizer 6 is performed by raising a pin or the like on the cylindrical body 19.

(Problems to be Solved by the Invention) In the conventional technology described above, since the abutting portions 16 and 17 have to be provided on the plate members 14 and 15 on opposite sides of the equalizer 6, the total length of the equalizer 6 is inevitable. There was a problem to be solved that the size became large. Further, in connection with this, there is a problem that the processing cost of the equalizer 6 becomes high. Furthermore, there is a problem in that the equalizer 6 and the cable 8 (9) are loosened at their joints. If the equalizer 6 is simply U-shaped, the portion that presses the cylinders 18 and 19 will tend to open, so play tends to occur between the equalizer 6 and the cylinders 18 and 19. Became. The present invention has been made for the purpose of improving this point.

(Means for Solving the Problems) As a means for solving the above problems, the present invention provides a braking mechanism 4, 5 for the parking brake lever 1 and the wheels 2, 3.
In the parking brake device of the automobile, the cable between which is connected via a cable 7,8,9 having an equalizer 21 formed by bending or joining a plate material in the middle part, and the end portions of the cables 7,8,9. The equalizer coupling section 20 provided in
A portion 24 of the equalizer 21 to be inserted into the holes 22 and 23 is formed into a straight line, and a portion 25 through which the ends of the cables 8 and 9 are inserted is formed into a T-shape that intersects the direct portion, and the cable ends are The outer peripheral shape of the insertion portion 25 of the portion is formed into an ellipse that is long in the width direction of the two plate portions 26 and 27 of the equalizer 21 that face each other.

(Operation) With this configuration, the equalizer 21 is connected to the cable 8,
Part 2 of the T-shaped equalizer joint 20 when joining 9
When 4 is inserted into the holes 22 and 23 of the equalizer 21, the oval portions push the two facing plate members of the equalizer 21 open, so that there is no play in these portions. Since there is no backlash, the equalizer 21 can be made by bending one metal plate into a U-shape, and therefore the equalizer 21 has a length dimension larger than that of the conventional one.
Can be shortened.

(Embodiment) An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. Reference numeral 20 in these figures is an equalizer coupling portion according to the present invention. This equalizer connection 20
Is provided at the end of the cable 8 (same for the cable 9), and the portion 24 to be inserted into the hole 22 (23) of the equalizer 21 shown in FIG. The part 25 to be inserted is formed in a T-shape that intersects the straight part 24. And cable 8
The outer peripheral shape of the portion 25 through which the end portion of (9) is inserted is formed into an ellipse which is long in the width direction of the two plate portions 26, 27 (see FIG. 4 and FIG. 5) of the equalizer 21 which face each other. It is configured. Regarding the degree of the ellipse, in the actually manufactured one, the shorter diameter dimension a is 8 mm, while the longer diameter dimension b is 9 mm, and good results are obtained.

As shown in FIGS. 3 to 5, the equalizer 21 is 1
It is formed by bending a sheet of plate material in a U-shape, and inserts the adjusting rod 28 from the bending portion side, and the cable from the opening side.
It is designed to insert 8,9. Adjust rod 28
Has a hole 29 for connecting the cable 7 (see FIG. 6) at the base, and a male screw 30 is provided at the tip end.
The adjusting nut 31 is screwed onto the 30. 32
Is a spacer, which is interposed between the adjusting nut 31 and a cylindrical body 34 having a hole 33 for inserting the male screw 30 in the center thereof. The cylindrical body 34 penetrates a hole 35 formed in the center of the equalizer 21.

When the cable 8 (9) is connected to the equalizer 21,
The equalizer insertion portion 24 of the equalizer coupling portion 20 is inserted into the hole 22 (23) of the equalizer 21. By this insertion, the longer part of the ellipse of the part 25 through which the cable 8 (9) is inserted is located between the plate parts 26 and 27, so that this part pushes open the plate parts 26 and 27. Will work. As a result, the backlash that has conventionally occurred in this portion will not occur. Since play in this portion can be prevented, the dimension t (see FIG. 5) between both plate portions 26, 27 of the equalizer 21 can be maintained constant, which allows the total length dimension of the equalizer 2 (see FIG. 3). Shown in Equalizer 21
The dimension between the upper and lower ends can be shortened.

(Effects of the Invention) Since the present invention is the parking brake brake device for a vehicle configured as described above, it has the following many effects.

When connecting the cable to the equalizer, the cable can be easily and securely attached by inserting the equalizer connecting portion of the cable through the opening of the plate portion of the equalizer and rotating the same.

When inserting the T-shaped equalizer connecting part into the equalizer hole to connect the cable to the equalizer, the oval part pushes the two facing plate members of the equalizer open, so this part There is no backlash.

Since there is no backlash, the equalizer can be formed by bending one metal plate into a U-shape, and the length of the equalizer can be made shorter than the conventional one.

Since the portion of the equalizer coupling portion where the cable is inserted and sandwiched by the equalizers has an elliptical shape, the diameter of the short circular portion can be reduced, and the equalizer can be reduced accordingly.

By reducing the total length of the equalizer,
The processing becomes easy, and the cost can be reduced.

[Brief description of drawings]

FIG. 1 is an enlarged side view showing an embodiment of the present invention, FIG. 2 is a front view of the main part of FIG. 1 seen from the right, and FIG. 3 shows a state in which a cable is connected to an equalizer. Plan view showing the fourth
3 is a side view of FIG. 3 as seen from above, FIG. 5 is a side view of the equalizer, FIG. 6 is a perspective view showing the outline of a parking brake device, and FIG. 7 is a plan view of a conventional equalizer. 7 is a central sectional view of that of FIG. 7, FIG. 9 is a perspective view of an equalizer connecting portion in a conventional cable, and FIG. 10 is a side view of another conventional example. 1 …… Parking brake lever 2,3 …… Wheels 4,5 …… Brake mechanism 7,8,9 …… Cable 20 …… Equalizer connection 21 …… Equalizer 22,23 …… Hole 24 …… Inserted in equalizer Part to be inserted 25 …… Part to insert the cable

Claims (1)

[Scope of utility model registration request] 1. A parking brake device for an automobile, wherein a parking brake lever and a wheel braking mechanism are connected to each other through a cable provided with an equalizer formed by bending or joining a plate material at an intermediate portion thereof. The equalizer coupling portion provided at the end portion is formed into a T-shaped portion in which the portion to be inserted into the hole of the equalizer is linear, and the portion through which the cable end portion is inserted has a T-shape intersecting with the linear portion. The outer peripheral shape of the insertion part of the part,
A parking brake device for an automobile, characterized in that two plate portions facing each other of the equalizer are formed in an oval shape elongated in the width direction.