KR19990042006U - Car assist parking brake. - Google Patents

Abstract

The present invention relates to an auxiliary parking brake for automobiles proposed to maintain a stable parking state using a wheel brake even when the parking brake is released while the car is parked on a sloped road or a parking lot.

The secondary parking brake 15 of the present invention is installed under the load detecting switch 16 and the parking lever 10 that can be installed in the driver's seat 11 to detect the presence or absence of the driver, thereby releasing the parking lever 10. The parking lever switch 17 for detecting the presence or absence of the state, and the regulator 25 for controlling the main switch 26 by detecting the state of the load detection switch 16 and the parking lever switch 17, the main It is connected to the switch 26 and installed on the vacuum power supply device 12 is fixed on the operating rod 31 of the electromagnet 30 and the vacuum power supply device 12 to generate a magnetic force by the operation of the main switch 26 The electromagnet 30 is composed of an operator 32 which operates the vacuum powering device 12 while being attracted to the generated magnetic force;

When the driver's seat 11 detects the driver's presence or absence and whether the parking lever 10 is released or not, the driver operates the vacuum power supply device 12 when the driver's seat 11 has no driver and the parking lever 10 is in the released state. The master cylinder 13 is characterized in that the wheel brake provided on each wheel (各 輪) to give a braking force to continue the parking state.

Description

Car assist parking brake.

The present invention relates to an auxiliary parking brake for a vehicle, and more particularly, to provide an auxiliary parking brake for maintaining a stable parking state using a wheel brake even when the parking brake is released while the car is parked on a sloped road or a parking lot. It is about.

The brake of a vehicle is divided into a main brake for slowing down or stopping a driving vehicle and a parking brake used for limiting movement when the vehicle is stopped and stopped.

The main brake is configured to apply the hydraulic pressure to the calipers or drum brakes mounted on the front and rear wheels of the vehicle so that the pads and linings are brought into close contact with the inner surfaces of the discs and drums, causing friction and decelerating or stopping.

In the case of parking brakes, brakes are applied to the propulsion shaft to brake the left and right driving wheels, and they are divided into a center type brake applied to a large vehicle and a rear wheel brake type applied to a light truck and a passenger car.

The parking brake of the rear wheel brake type is equipped with a parking lever that can artificially operate the shoe mounted by fixing the lining inside the drum formed integrally with the drum brake or the disc brake, and the parking lever is provided on the side of the driver's seat. It is composed by connecting with wire.

If the driver wants to stop or stop the car, the parking brake is pulled out completely and then the parking lever is pulled so that the parking lever connected with the wire enlarges the diameter of the shoe and the inner surface of the drum. By being in close contact, you can stick to parking.

When the parking state is to be released, the tensioned wire is relaxed by returning the parked parking lever to its original position, and the parking lever is retracted by the spring to be able to travel.

However, in the case of the parking brake in which the shoe and the drum are in close contact with the parking lever as described above, when the parking lever is naturally released due to artificial or aging, a significant accident risk occurs.

In other words, when parked in a sloped area, the parking lever and various parking brake-related parts are deteriorated due to the deterioration of the car. .

In particular, when the driver leaves the room, only the child has a problem such as having a considerable risk of accident when the children release the parking lever due to curiosity.

Accordingly, in the present invention, when the parking lever is released or the parking state is released in the absence of a driver in the driver's seat, the wheel brake provided on each wheel performs a braking force. It aims to be able to keep the parking state free from the danger of an accident.

The configuration of the present invention for this purpose is to detect the riding state of the driver's seat and the release state of the parking lever to operate the vacuum force device to supply the hydraulic pressure to the wheel brake of each wheel to maintain the braking state.

1 is a configuration of the auxiliary parking brake applied technology of the present invention.

2 is a cross-sectional view taken a portion A of FIG.

3 is a cross-sectional view taken a portion B of FIG.

4 is a cross-sectional view taken a portion C of Figure 1;

* Description of the symbols used in the main parts of the drawings *

10; Parking lever

15; Secondary parking brake

16; Load sensitive switch

17; Parking lever switch

25; regulator

26; Main switch

30; Electromagnet

32; Operator

Hereinafter, with reference to the accompanying drawings will be described the configuration and operation of the present invention for achieving the above object.

1 is a block diagram of an auxiliary parking brake to which the technique of the present invention is applied, FIG. 2 is a cross-sectional view taken from a portion A of FIG. 1, FIG. 3 is a cross-sectional view taken from a portion B of FIG. 1, FIG. It demonstrates together as a cross-sectional view which extracted.

In the present invention, the parking lever 10 for controlling the parking brake operation is provided with an auxiliary parking brake 15 to maintain the parking state even when artificially (by a child) or naturally released. To maintain.

To this end, in the present invention, the driver's seat 11 detects the presence or absence of the driver and the release of the parking lever 10 so that the driver is not in the driver's seat 11 and the parking lever 10 is in the released state. 12) to operate the master cylinder 13 to the wheel brake provided in each wheel (各 輪) to perform a braking force to maintain the parking state.

Looking at the configuration of the present invention for this purpose;

Under the seat 14 of the driver's seat 11, a load sensing switch 16 capable of detecting the presence or absence of a driver is installed, and the parking lever 10 is released below the parking lever 10 (the initial position). ) Install the parking lever switch (17) to detect the presence or absence.

The load sensing switch 16 and the parking lever switch 17 are lifted and retracted by the contact terminals 18 and 19 and the springs 20 and 21 to which the power is connected, the weight of the driver, and the pulling and retraction of the parking lever 10. And contacts 22 and 23 which are shorted with the contacts 18 and 19 while lifting downward.

The load detection switch 16 and the parking lever switch 17 are connected to the regulator 25 to determine whether the driver is present or not and whether the parking lever 10 is released or not to control the main switch 26.

The main switch 26 is connected to the electromagnet 30 is installed in front of the vacuum power supply device 12 having the master cylinder 13 in front so that magnetic force can be generated.

The operator 32 is fixed on the front operating rod 31 of the electromagnet 30 installed in the vacuum booster 12 to operate the vacuum booster 12 while being pulled by the magnetic force generated by the electromagnet 30. Configure it to be.

According to the present invention as described above, when the vehicle is driving, the load sensitive switch 16 is in contact with the contact terminal 18 by the contact 22 descending by the weight of the driver, and the parking lever switch 17 is As the contact 23 is spaced apart from the contact terminal 19 by the falling of the parking lever 10, the adjuster 25 detects that the vehicle is driving and does not operate the main switch 26.

If the driver stops the vehicle while driving is stopped and there is no driver, the contact 22 is lifted by the spring 20 to be spaced apart from the contact terminal 18 (OFF state), and the parking lever 10 is pulled to park the vehicle. The contact 23 of the parking lever switch 17 is lifted by the spring 21 to be in contact with the contact terminal 19 (ON state) and does not satisfy the operating conditions. In this case, the main switch 26 is not operated.

In this state, when the parking lever 10 is artificially released due to natural occurrence such as old age or lack of pulling or curiosity such as a child, the contact 23 of the parking lever switch 17 is lowered by the parking lever 10 descending. It descends and becomes spaced apart from the contact terminal 19.

At this time, since both the load sensitive switch 16 and the parking lever switch 17 is in the OFF state, the regulator 25 detects this and operates the main switch 26.

Due to the operation of the main switch 26, electric current flows through the electromagnet 30 installed in the vacuum power supply device 12, and the magnetic force is generated, and the operator 32 fixed on the operating rod 31 has an electromagnet ( 30) will move in the direction (←).

Then operating rod 31 → valve plunger → reaction disk → master cylinder push rod → master cylinder piston in order to transfer the increased hydraulic pressure to the wheel brake of each wheel to impart a braking force.

Therefore, even when the parking lever 10 is released and the parking brake is released, the brake of each wheel gives a braking force, thereby preventing the automobile from moving in the inclined direction, especially when parking at a sloping place.

The present invention as described above, when the parking state is released in the absence of the driver, the vacuum brake system is operated by the wheel brakes provided on each wheel to carry out the braking force to maintain the parking state, thereby avoiding the risk of an accident and parking This has the effect of improving the reliability of the brakes.

Claims (3)

In the configuration of the auxiliary parking brake 15 to maintain a stable parking state by sticking to the parking state even when the parking lever 10 for controlling the parking brake operation is artificially (by children) or spontaneously released; The auxiliary parking brake 15 detects the presence or absence of a driver in the driver's seat 11 and the presence or absence of a driver's release of the parking lever 10 to detect a vacuum when there is no driver in the driver's seat 11 and the parking lever 10 is in a released state. An auxiliary parking brake for a vehicle, characterized in that the master cylinder 13 is operated to operate the power supply device 12 so that the wheel brakes provided on the respective wheels can provide a braking force to continue the parking state. The secondary parking brake 15 is; A load sensing switch 16 installed in the driver's seat 11 and capable of sensing the presence or absence of the driver; A parking lever switch 17 installed below the parking lever 10 to sense whether the parking lever 10 is in a released state or not; A regulator (25) for controlling the main switch (26) by sensing the state of the load sensing switch (16) and the parking lever switch (17); An electromagnet 30 connected to the main switch 26 and installed on the vacuum power supply device 12 to generate magnetic force by the operation of the main switch 26; An automobile 32, which is fixed on the operating rod 31 of the vacuum booster 12, is configured to be an operator 32 that operates the vacuum booster 12 while being attracted to the magnetic force generated by the electromagnet 30. Parking brake for use. The method of claim 1; The load sensing switch 16 and the parking lever switch 17 are composed of contact terminals 18 and 19, springs 20 and 21, and contacts 22 and 23 to which power is connected. Parking brake.