KR19980085858A - Automobile tire pressure regulating brake - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tire pneumatic pressure regulating braking apparatus, comprising a booster device (11) installed spaced apart from a brake pedal (7) by a predetermined distance, and connected to one side of the booster device (11) to obtain a vacuum of the intake manifold. A brake having an actuating pipe 13 and having a master cylinder 9 integrally formed at one end of the power boosting device 11 and provided on one side of the master cylinder 9 and connected to the wheel cylinder 17. In the braking device for an automobile made of a pipe 15, the flange 52 penetrating the central portion of the wheel 5, protruding on one side thereof is provided with a pneumatic pipe 50 fixed to the wheel 5, One end of the pneumatic pipe 50 is connected to one side of the tire 3 and the hose 54, the other end is formed through one side of the body frame 1, a cylinder on one side of the body frame (1) 40 is fixed to the cylinder 40 The one end is inserted into the pneumatic pipe 50, and the other end is inserted into the cylinder 40 to divide the cylinder 40 into the first cylinder portion 40a and the second cylinder portion 40b. Piston 42 is provided, one side of the first cylinder portion 40a is provided with a first pipe 30 connected from the brake pipe 15, one side of the second cylinder portion 40b By forming the second pipe 32 connected from the second chamber 9b of the master cylinder 9, the ground area of the tire contacting the road surface can be widened to improve the braking force of the vehicle.

Description

Automobile tire pressure regulating brake

The present invention relates to a tire air pressure regulating braking apparatus of a vehicle, and more particularly, to adjust the air pressure of a tire in contact with the road surface during braking of the vehicle to form a wider ground area, thereby improving the braking force of the vehicle. It relates to an adjustable braking device.

As is well known, the brake device of an automobile is an important device used to maintain a parking state while decelerating or stopping a vehicle while driving. In general, a frictional force is used to convert the kinetic energy of a vehicle into thermal energy to convert this heat into air. Friction brakes that brake by dissipating in the middle have been used.

Such a brake device basically consists of an operating mechanism that increases and transmits a driver's operating force by using a link or hydraulic pressure, and a main body that generates a braking force by the force.

The brake device includes a foot brake that is operated by the driver's foot while driving, and a parking brake that is operated by the driver's hand to keep the vehicle parked. The operating mechanism of the brake device includes mechanical and hydraulic pressure using a cord or wire. Although there are hydraulic types used, hydraulic types are generally used for foot brakes and mechanical types are used for parking brakes.

In addition, the foot brake is provided with a power-up device for obtaining a large braking force while equalizing the pedal pedal force by using compressed air for hydraulic pressure.

1 is a conceptual diagram illustrating a braking device of a general vehicle, as shown in FIG. 1, to form a power supply device 11 spaced apart from the brake pedal 7 by a predetermined distance, and the power supply device 11 has an intake air. A pipe 13 on which a vacuum of the manifold is applied is connected, and a master cylinder 9 is integrally formed at one end of the power supply device 11, and one side of the master cylinder 9 is connected to a wheel cylinder 17. Connected brake pipes 15 are provided.

A piston 19 is provided inside the master cylinder 9, and the interior of the master cylinder 9 is provided as a first chamber (not shown) and a second chamber (not shown) by the piston 19. do.

The brake pipe 15 is provided with a steel pipe subjected to rust prevention treatment by introducing hydraulic pressure from the master cylinder 9 to the wheel cylinder 17.

When the hydraulic pressure flows into the wheel cylinder 17, the brake shoe (not shown) is pushed onto the brake drum (not shown) and braked.

The power boosting device 11 can obtain a large braking force by increasing the braking force of the wheel by several times using the same brake pedal 7 as the foot force by using the vacuum force of the intake manifold.

In the braking device of such a general vehicle, when the driver steps on the brake pedal 7, the pressure corresponding to the stepping force of the brake pedal 7 is transmitted to the master cylinder 9, wherein the brake pedal 7 and the master cylinder 9 The pipe 13 to which the vacuum of the intake manifold is applied is connected to the power supply device 11 provided between the plurality of power supply units, so that the pedal force of the brake pedal 7 can be increased by several times by the negative pressure of the power supply device 11 and thus the master cylinder. Since a large force acts on the piston 19 of (9), the piston 19 pushes the brake fluid provided in the first chamber 9a of the master cylinder 9 with a large force through the brake pipe 15. It is operated by braking cylinder 17 of the front and rear wheels.

Such a braking device of a vehicle brakes a wheel of a vehicle by a large force acting by a booster when the driver presses a brake pedal. However, after the driver recognizes the danger of the accident, the brake pedal is stepped on, and the timing of the brake pedal is different for each driver, and there is a stopping distance for the vehicle to stop completely even when the brake pedal is pressed. In the case of the female driver or the elderly, there is a problem that an accident may be caused by the moving distance until the vehicle stops due to a delay in applying the brake pedal.

The present invention is to solve the above-mentioned problems, and when the driver brakes the vehicle by stepping on the brake pedal, by adjusting the air pressure of the tire to form a large ground area between the tire and the road surface has a large friction force acting on the tire It is an object of the present invention to provide a tire air pressure regulating braking device for improving the braking force of the vehicle by shortening the stopping distance until the driver starts the braking operation by stopping the brake pedal and completely stops the vehicle.

The technical configuration of the present invention for achieving the above object is provided with a power supply device installed to be spaced apart from the brake pedal, a predetermined distance, and is provided with a pipe connected to one side of the power supply device to operate the vacuum of the intake manifold, the power supply device A braking device for a vehicle having a master cylinder integrally formed at one end of the brake cylinder, the brake pipe being provided at one side of the master cylinder and connected to a wheel cylinder, wherein the flange penetrates the central part of the wheel and protrudes at one side thereof. Is provided with a pneumatic pipe fixed to the wheel, one end of the pneumatic pipe is connected to one side of the tire and the hose, the other end is formed through one side of the body frame, fixed to the cylinder on one side of the body frame It is provided in the cylinder, one end of which is inserted into the pneumatic pipe, the other end of the cylinder And a piston inserted into the cylinder to divide the cylinder into a first cylinder portion and a second cylinder portion, wherein one side of the first cylinder portion is provided with a first pipe connected from the brake pipe, and on one side of the second cylinder portion. And a second pipe connected from the second chamber of the master cylinder.

1 is a conceptual diagram showing a braking device of a general vehicle for explaining the present invention

Figure 2 is a block diagram showing a tire air pressure regulating braking apparatus of the present invention

Explanation of symbols on the main parts of the drawings

3: tire 5: wheel

7: Brake pedal 9: Master cylinder

9a: first room 9b: second room

11: booster 13: pipe

15: brake pipe 17: wheel cylinder

30: first pipe 32: second pipe

40: cylinder 40a: first cylinder portion

40b: 2nd cylinder part 19, 42: piston

42a: first piston portion 42b: second piston portion

50: pneumatic pipe 52: flange

54: hose

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a diagram illustrating a tire air pressure regulating braking device of the present invention.

As shown, the flange 52 which penetrates the central portion of the automobile wheel 5 and protrudes on one side thereof has a pneumatic pipe 50 fixed to the wheel 5.

The flange 52 of the pneumatic pipe 50 is fastened to the wheel 5 by fastening with a bolt 56 and a nut 58.

One end of the pneumatic pipe 50 is connected to one side of the tire 3 and the hose 54, the other end is penetrated to one side of the vehicle body frame (1).

The pneumatic pipe 50 and the hose 54 is rotated together with the wheel 5 during the rotation of the tire (3).

The cylinder 40 is fixedly formed on one side of the body frame 1 by fixing means such as screws or welding.

The piston 42 provided in the cylinder 40 has a first piston portion 42a formed at one end thereof is inserted into the pneumatic pipe 50, and the second piston portion 42b formed at the other end thereof is the cylinder 40. The inner side of the cylinder 40 is divided into a first cylinder portion 40a and a second cylinder portion 40b to be formed.

The first piston portion 42a of the piston 42 maintains airtightness in the pneumatic pipe 50, and the second piston portion 42b maintains oil tightness in the cylinder 40.

One side of the first cylinder portion 40a of the cylinder 40 is provided with a first pipe 30 connected from the brake pipe 15, and one side of the second cylinder portion 40b of the master cylinder 9 is provided. A second pipe 32 connected from the two chambers 9b is provided.

In the tire pneumatic pressure regulating braking apparatus of the present invention configured as described above, when the driver steps on the brake pedal 7, the pedal force of the brake pedal 7 is increased by several times by the power boosting device 11, thereby providing a master cylinder ( It acts on the piston 19 of 9).

Then, the piston 19 of the master cylinder 9 pushes the hydraulic pressure of the first seal 9a with a large force to act on each wheel cylinder 17 through the brake pipe 15, in which case the brake pipe 15 The hydraulic pressure through) is introduced into the first cylinder portion 40a of the cylinder 40 by the first pipe 30 connected to one side of the brake pipe 15, and the hydraulic pressure flowed into the first cylinder portion 40a. The second piston portion 42b of the piston 42 is pushed to the second cylinder portion 40b side so that the hydraulic pressure of the second cylinder portion 40b flows into the second chamber 9b of the master cylinder 9. To be.

At this time, since the second piston portion 42b of the piston 42 moves to the second cylinder portion 40b side by the hydraulic pressure introduced into the first cylinder portion 40a in the cylinder 40, the pneumatic pipe 50 The first piston portion 42a of the piston 42 inserted in the) moves to the cylinder 40 side.

Thus, the air of the tire 3 flows into the pneumatic pipe 50 side through the hose 54 by the distance traveled by the first piston portion 42a in the pneumatic pipe 50, so that the tire 3 on the road surface. Since the ground area is in contact with a wide area, the braking force is improved to shorten the stopping distance of the vehicle.

When the driver removes the foot from the brake pedal 7, the hydraulic pressure of the wheel cylinder 17 flows into the first chamber 9a of the master cylinder 9 through the brake pipe 15, and the cylinder 40 Since the hydraulic pressure introduced into the first cylinder portion 40a of the (3) is also introduced into the first chamber 9a of the master cylinder 9 through the first pipe 30, the piston 19 in the master cylinder 9 It moves to the 2nd chamber 9b side.

Then, the hydraulic pressure flowing into the second chamber 9b of the master cylinder 9 flows into the second cylinder portion 40b of the cylinder 40 through the second pipe 32 and is provided in the cylinder 40. The piston 42 is moved by pushing the second piston portion 42b of the piston 42 toward the first cylinder portion 40a.

At this time, the first piston portion 42a of the piston 42 returns to its original position and injects air introduced into the pneumatic pipe 50 back into the tire 3 to enable normal driving.

As described above, the tire pneumatic pressure regulating braking apparatus of the present invention improves the braking force of the vehicle by adjusting the air pressure of the tire during braking of the driving vehicle, thereby widening the ground area of the tire in contact with the road surface. The short distance reduces the effect of preventing accidents.

Claims (1)

It is provided with a power supply device 11 is provided spaced apart from the brake pedal 7 by a predetermined distance, and is provided with a pipe 13 connected to one side of the power supply device 11, the vacuum of the intake manifold acts, In the braking device of a vehicle having a master cylinder (9) formed integrally at one end of the 11), provided on one side of the master cylinder (9) and consisting of a brake pipe (15) connected to the wheel cylinder (17), The pneumatic pipe 50, which penetrates the central portion of the wheel 5 and protrudes on one side thereof, is fixed to the wheel 5, and one end of the pneumatic pipe 50 is a tire 3; Is connected to one side of the hose 54 and the other end is formed through one side of the body frame 1, fixed to the cylinder 40 on one side of the body frame 1, the cylinder 40 It is provided in the one end is inserted into the pneumatic pipe 50, the other end is inserted into the inside of the cylinder 40 is divided into the cylinder 40 is divided into the first cylinder portion 40a and the second cylinder portion 40b It is provided with a piston 42, and one side of the first cylinder portion 40a is provided with a first pipe 30 connected from the brake pipe 15, one side of the second cylinder portion 40b And a second pipe 32 connected from the second chamber 9b of the master cylinder 9. The tire pressure of the vehicle brake system control.