JPS6328045Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an equalizer device that applies the tensile force of a parking lever in a vehicle interior equally to brake devices attached to left and right wheels via a parking brake cable.

Parking brakes, which are generally installed in automobiles, are designed to apply the tensile force caused by operating the parking lever inside the vehicle evenly to the brake devices attached to the left and right rear wheels via a single parking brake cable. An equalizer device is incorporated to evenly distribute the force at appropriate points between the parking lever and the brake device.

Conventionally, as shown in FIG. 1, this equalizer device is made by overlapping two plates 1a and 1b whose rear ends are bent in opposite directions, and joining them together with bolts 2 to form an equalizer body 1. A support member 3 made of pipe material is fixed to the rear end of the equalizer body 1, and the tip of the equalizer body 1 is attached to the vehicle body frame 4.
is swingably attached via a support shaft 5 to an appropriate location,
As shown in Figure 2, the parking lever 8 inside the vehicle
The inner cable 6a of the first parking brake cable 6 connected to the equalizer body 1 is passed through the support member 3 of the equalizer main body 1 and connected to the brake devices 9a and 9b of one rear wheel, and the outer cable 6b is connected to the support member 3. A second parking brake cable 7 is connected to the support member 3 in parallel with the outer cable 6b, and its end is connected to the brake device 9b of the other rear wheel.

When the parking lever 8 is operated, the inner cable 6a of the first parking brake cable 6 is pulled to operate the brake device 9a of one rear wheel, and at the same time, the reaction force of the outer cable 6b is applied to the equalizer body 1. support member 3
act on the inner cable 6a to move relative to the inner cable 6a by an equal distance in the opposite direction, thereby pulling the second parking cable 7 and braking device 9 of the other rear wheel.
Activate b.

In the above-mentioned equalizer device, the first parking brake cable 6 and the second parking brake cable 7 connected to the support member 3 of the equalizer main body 1 are offset H, and during operation,
Since forces act in opposite directions at two points on the support member 3, a coercive force acts on the support member 3 and the equalizer body 1, increasing the rocking resistance of the equalizer body 1 and reducing operability. It was hot.
In addition, the number of parts is large and the structure is complicated, and when assembling, it is necessary to connect the two plates 1a and 1b with bolts 2 and at the same time attach the support member 3, and then attach it to the support shaft 5 of the vehicle body 4. Workability was poor. Furthermore, since the number of parts is large and the support member 3 is made of pipe material, it is expensive.

Conventionally, an equalizer device in which both cables are placed on the same line of action has been used, for example, in the
This is proposed in Publication No. 59648, but this is a proposal aimed at moving the equalizer in parallel, and there are problems with the cable connection structure and cable behavior when applying it to a single arm type. is left behind.

This invention was proposed in view of the above-mentioned problems of the prior art, and the brake system for one wheel is directly operated by the inner cable of the first parking brake cable from the parking lever in the vehicle interior, and the brake system for the other wheel is A parking brake in which the brake device is actuated by a second parking brake cable via an equalizer body by a reaction force applied to the outer cable of the first parking brake cable, one end of which is swingable to a stationary member of the vehicle body. One end of the single arm is pivotally connected to the other end of the single arm via a pivot pin through which one end of the outer cable of the first parking brake cable is inserted and fixed, and the other end of the single arm is pivotally connected to the second arm.
The equalizer body has one end of the parking brake cable connected to the first parking brake cable on the same line of action, and the equalizer body is made by folding a long plate material in half symmetrically at the center in the longitudinal direction. A pair of side plates that are open on both sides in the direction are formed facing each other, and the pivot pin is passed through and fixed between the plates on both sides of the non-bent end of the equalizer main body, and the outer cable of the first parking brake cable is connected to the both sides of the equalizer body. A cable is routed between the plates and inserted and fixed to the pivot pin perpendicular to the axis.

The configuration of this invention will be described below with reference to embodiments shown in the drawings.

In FIGS. 3 to 5, 10 is an equalizer main body, which is formed by bending a long plate material into a hairpin shape, and a pair of side plates 11, 11 extending rearward from the bent end portion 10a are made parallel to each other. There is. Reference numeral 12 designates a pivot pin that is passed through and fixed between the rear ends of the pair of side plates 11, 11 of the equalizer main body 10, and has a through hole 13 formed in the center thereof in a direction perpendicular to the axis. It is arranged parallel to the side plates 11, 11 of. Reference numeral 14 denotes a vehicle body frame, and 15 and 15 designate a pair of upper and lower arms pivotally connected to brackets 16 and 16 provided on the vehicle body frame 14 through pivot pins 17 via antifreeze resin washers 18 and 18, respectively. The pair of arms 15, 15 are attached to both sides of the rear end of the equalizer body 10, and both ends of the pivot pin 12 are made to protrude outward from the arms 15, 15, and both protruding ends are fixed by caulking.
0 and arms 15, 15, and bracket 1
It is swingably connected to the vehicle body frame 14 via 6 and 16. 19 is a first cable consisting of a flexible inner cable 20 and an outer cable 21.
One end of the inner cable 20 is connected to a parking lever (not shown) arranged in the vehicle interior, and the other end is passed through the through hole 13 of the pivot pin 12 of the equalizer main body 10, and the inner cable 20 is connected to one rear of the parking brake cable. It is linked to the wheel brake system. Further, one end of the outer cable 21 is fixed to the vehicle body near the parking lever by appropriate means, and the other end is fixed to the pivot pin 12. 22 is a second unit that is linked to the equalizer main body 10;
One end of the parking brake cable is operatively connected to the brake device of the other rear wheel, and the other end is connected to the equalizer main body 10 by passing through the bent end portion 10a thereof.

In the equalizer device having the above configuration, when the parking lever is operated, the inner cable 20 of the first parking brake cable 19 is pulled, and in conjunction with this, the reaction force of the outer cable 21 acts on the pivot pin 12, and the equalizer body 10 and the arms 15, 15 are swung equidistantly in the opposite direction to the inner cable 20 around the pivot pin 17, and the second parking brake cable 22 connected to the equalizer body 10 is pulled. The inner cable 20 of the brake cable 19 and the second parking brake cable 22 are simultaneously and equally pulled to operate the brake devices of the left and right rear wheels.

During the above operation, the bending portion 1 of the equalizer main body 10
The force application point of the second parking brake cable 22 connected to 0a and the first parking brake cable 1 connected and fixed to the pivot pin 12
Since the point of application of the force of the outer cable 21 of No. 9 is arranged on the same straight line along the operating direction,
No force is applied to the equalizer body 10 and the pivot pin 12, and the equalizer body 10 is connected to the vehicle body frame 1 by a pair of upper and lower arms 15, 15.
4, the resistance does not increase and the operability is good. Further, in the equalizer device, the equalizer main body 10 is connected to the pivot pin 12.
Since it is attached to the arms 15, 15 and supports the first parking brake cable 19, the structure is simple and assembly is easy.

Furthermore, since resin washers 18, 18 are interposed between the arms 15, 15 and the integral brackets 16, 16 provided on the vehicle body frame 14, there is no possibility of freezing between the two, which would hinder operation in winter. It never happens.

As explained above, this invention operates the brake system of one wheel directly by the inner cable of the first parking brake cable from the parking lever in the vehicle interior, and operates the brake system of the other wheel directly by the inner cable of the first parking brake cable from the parking lever in the vehicle interior. In a parking brake that is actuated by a second parking brake cable via an equalizer body by a reaction force applied to the outer cable of the parking brake cable, a single arm is pivoted at one end to a stationary member of the vehicle body. One end of the first parking brake cable is pivotally connected to the other end via a pivot pin through which one end of the outer cable of the first parking brake cable is inserted and fixed, and one end of the second parking brake cable is connected to the other end of the first parking brake cable. The equalizer body is equipped with an equalizer body connected on the same line of action as the brake cable, and the equalizer body is made by folding a long plate material in half symmetrically at the center in the longitudinal direction and facing a pair of side plates with both sides open in the width direction. and between both side plates of the non-bent end of the equalizer main body,
Since the pivot pin is passed through and fixed, and the outer cable of the first parking brake cable is routed between the both side plates and inserted and fixed into the pivot pin perpendicular to the axis, the following effects are obtained.

First, since the equalizer main body is constructed by folding a long plate material in half symmetrically at the center in the longitudinal direction, the shaping process of the equalizer main body is extremely simple.

In addition, by simply passing through and fixing the pivot pin between both side plates of the non-bent end of the equalizer body,
It is possible to assemble the arm, the equalizer main body, and the cable, reducing the number of assembly steps and parts, and reducing costs.

Furthermore, since the outer cable of the first parking brake cable was routed between both side plates of the equalizer body and inserted and fixed into the pivot pin perpendicular to the axis, the parking operating force is applied to both brakes using the pivot pin as a branching point. The reaction force acting on the outer cable of the first parking brake cable causes the arm to rotate in the opposite direction to the pulling direction of the inner cable. At this time, since the second parking brake cable is connected to the bent end side of the equalizer body and is connected on the same line of action as the first parking brake cable, the pivot pin and arm have no bending moment. The operating mechanism of the parking brake device can be operated lightly and smoothly for a long period of time without being affected by (coze force) and damaging these components. Moreover, when the equalizer body rotates back and forth around the axis of the arm due to the reaction force described above, the outer cable of the first parking brake cable swings around the pivot pin, but the equalizer body is formed by folding a long plate in half. Both sides of the board in the width direction are open, and the cable is routed in this part, so that when the cable swings,
Interference such as collision with the equalizer main body does not occur, and damage to the outer cable can be prevented, and smooth operation of the first parking brake cable can be maintained.

[Brief explanation of drawings]

Fig. 1 is a sectional view showing a conventional equalizer device, Fig. 2 is a plan view of main parts showing the relationship between the equalizer device and the parking brake cable, and Fig. 3 is a plan view showing a parking brake equalizer device according to the present invention. FIG. 4 is a longitudinal sectional front view thereof, and FIG. 5 is a longitudinal sectional side view showing the mounting structure of the equalizer device on the vehicle body frame. 10...Equalizer body, 11...Side plate, 1
2...Pivot pin, 14...Vehicle frame, 1
5... Arm, 16... Bracket, 17... Pivot pin, 19... First parking brake cable, 20... Inner cable, 21... Outer cable, 22... Second parking brake cable.

Claims (1)

[Claim for Utility Model Registration] The brake device for one wheel is directly operated by the inner cable of the first parking brake cable from the parking lever inside the vehicle, and the brake device for the other wheel is operated by the first parking brake. In a parking brake that is operated by a second parking brake cable via an equalizer body due to a reaction force applied to the outer cable of the cable, a single arm with one end swingably pivoted to a stationary member of the vehicle body is used. One end is swingably pivoted to the end via a pivot pin through which one end of the outer cable of the first parking brake cable is inserted and fixed;
The other end is provided with an equalizer body in which one end of the second parking brake cable is connected on the same line of action as the first parking brake cable, and the equalizer body is connected to a long plate material symmetrically at the center in the longitudinal direction. A pair of side plates that are folded in half and open on both sides in the width direction are formed to face each other, and the pivot pin is passed through and fixed between the side plates at the non-bent end of the equalizer main body, and the first parking brake cable is An equalizer device for a parking brake, characterized in that an outer cable is routed between the above-mentioned both side plates, and is inserted and fixed to the above-mentioned pivot pin perpendicularly to the axis.