KR890005321B1 - Anti-slip hydraulic brake by clutch pedal - Google Patents

Abstract

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Description

Hydraulic brake system for preventing forward and backward movement using automobile clutch pedal

1 is a perspective view of a reverse prevention cylinder of the present invention.

2 is a plan view of the reverse prevention cylinder of the present invention.

3 is an exploded perspective view of the reverse prevention cylinder of the present invention.

Figure 4 is a longitudinal cross-sectional view of the reverse prevention cylinder of the present invention.

5 is a cross-sectional view illustrating a state in which the oil in the brake master cylinder is compressed to the brake line through the anti-retraction cylinder of the present invention when only the brake pedal is pressed.

6 is a cross-sectional view showing a state in which the piston moves only when the clutch pedal is stepped up to the clearance interval, and the double check valve closes the oil inlet hole by the elasticity of the double check valve spring (where the amount of oil in the cylinder is braked). The brake is not activated when only the pedal pedal is pressed because it is adjusted to the under operation.

FIG. 7 is a cross-sectional view illustrating a state in which the piston rear end slope is caught by the piston anti-retraction pin while the piston is gradually pressed backward when the brake pedal is pressed while the clutch pedal is pressed.

8, when the foot is released from the brake pedal, the double check valve instantly closes the oil inlet hole by the step of the double check valve spring, and the piston pushed by the piston rod brakes the compressed oil in the reverse prevention cylinder. Sectional view illustrating a state in which a line is compressed by braking.

9 is an enlarged cross-sectional view taken along the line A-A of FIG. 4 showing the half moon pierced by the oil extrusion hole surface.

FIG. 10 is an exemplary view showing a state in which the present invention is installed in a brake line. FIG. 10 (a) is a state diagram in which the present invention is connected to a brake tandem master cylinder, and FIG. 10 (b) is a brake tandem master. FIG. 10 (c) is a state diagram in which the present invention is connected and installed in a brake master cylinder. FIG.

11 is a left side view of the reverse prevention cylinder of the present invention.

12 is a side view showing a state in which the reverse prevention cylinder of the present invention is installed on the vehicle front wall.

* Explanation of symbols for main parts of the drawings

1: Reverse prevention cylinder 2: Piston operating lever

2a: piston operating lever adjustment bolt 3: clutch pedal

4: brake master cylinder 6: brake line

7: Inner side short of piston operating lever 7a: Piston reverse prevention pin hawk adjustment bolt

8: piston rod 9: cylinder bracket

10: Double Ex valve 10e: Double shock valve spring

11 bowl valve 12 piston

12a: sloped stepped end of piston

13: piston reverse prevention pin 14: piston reverse prevention pin hawk

The present invention relates to an anti-reverse hydraulic brake device using an automobile clutch pedal that can be started directly in place without the fluctuation of the moment when the vehicle which has been temporarily suspended on the uphill starts to move backwards. If the car on the road stops and then reverses at the moment of departure, the driver feels insecure, and if only the pedal pedal is pressed in unstable driving that causes a crash when the following car fails to maintain a safe distance, Even if the brake pedal is released, the brake is kept in operation, and if the clutch pedal is released, the brake is momentarily released and the vehicle moves forward with the clutch operation, enabling safe driving.

When the car going uphill stops, the clutch pedal and the brake pedal are pressed almost at the same time.When the vehicle is stopped and started, the brake pedal is released to step on the accelerator. Because of the swinging back, the driver's anxiety is encouraged, and the car has to consume more fuel to get the propulsion to double the retraction force, and due to the excessive propulsion shock, each part (i.e. the engine, the plug, the transmission, Material joints, automatic gears, gear reduction gears, tires, etc.) are not only a problem of wear and tear, but also a backward accident and collides with the rear car, and this phenomenon is larger as the slope of the uphill is severe.

The present invention has been considered in view of the above problems, and the reverse prevention cylinder is installed at the clearance gap position of the clutch pedal to be operated when the vehicle is stopped, thereby pressurizing the hydraulic pressure of the brake master cylinder to the brake line through the reverse prevention cylinder to brake the brake. When the brake pedal is pressed while operating, the oil pressure in the brake master cylinder opens the double check valve of the reverse prevention cylinder and is extruded into the brake line through the reverse prevention cylinder to activate the brake, and the brake pedal and the clutch pedal are pressed together. When the brake pedal is pressed and the clutch pedal is pressed, the double check valve closes the oil inlet hole, while the piston of the anti-retraction cylinder pushes and pressurizes the compressed oil in the anti-retraction cylinder toward the brake line to maintain the brake operation. Pedal If you press the clutch pedal only without stepping on it, the amount of oil in the anti-retraction cylinder will not be enough to operate the brakes, so that the brakes will not operate normally. The invention is described in detail based on the accompanying drawings to the brake operation is as follows.

Attach the reverse prevention cylinder (1) to the vehicle front wall of the clearance gap of the clutch pedal so that the piston actuating lever (2) is positioned at the boundary between the clearance gap of the clutch pedal (3) and the clutch operation clearance, and the brake master cylinder The oil extrusion pipe 4a of (4) is connected to the oil inlet hole 1a of the backward prevention cylinder 1, and the oil extrusion pipe 5 of the backward prevention cylinder is connected to the brake line 6 to brake master cylinder. The oil in (4) is extruded through the anti-retraction cylinder (1) to the brake line (6).

The anti-retraction cylinder 1 is attached to the cylinder bracket 9 arranged so that the piston actuating lever 2 can push the piston rod 8, and the oil injected into the oil inlet hole 1a is the oil extruding hole 1b. ), The oil inlet hole (1a) is opened and closed by a double check valve (10), which is supported by the elasticity of the double check valve spring (10e), the oil extrusion hole (1b) is a bowl valve The double check valve 10 is opened and closed by a double check valve spring 10e such that the rear end 10d through which the oil flow hole 10c is drilled is inserted into the inner hole of the piston 12. The piston 12 is piled up by the piston literal spring 12b so as to be located at the rear end of the reverse prevention cylinder 1.

On the other hand, the piston anti-retraction pin 13 is installed in the state where the piston anti-retraction pin 13 is slightly attached to the edge of the inclined surface step 12a of the piston reinforcement in the upper protrusion 1d of the rear end portion of the piston 12. When the edge of the inclined surface step 12a is slightly displaced from the bottom surface of the piston anti-retraction pin 13, the pneumatic retardation pin 13 is lowered.

And the piston anti-retraction pin 13 is formed in the upper end (13b) in advance of the piston anti-retraction pin hawk 14 which is arranged in the shaft 9b on the shaft piece (9a) of the upper portion of the cylinder bracket (9) The other end of the hawk 14 is pressed against the piston anti-retraction pin hawk jaw information bolt 7a screwed into the inner end-extension piece 7 of the piston operating lever 2, and the piston operating lever 2 A slip roller (3b) is attached to the surface of the clutch pedal (3) that is in contact with the piston pedal to lighten the operation of the piston operating lever (2), and a half moon (1c) is applied to the surface where the bowl valve (11) touches the oil extrusion hole (1b). ), The compressed oil on the brake line (6) side is refluxed into the reverse prevention cylinder (1), and a "0" ring (10) is attached to the tip (10a) of the double check valve (10). Reference numeral 15 denotes an exhaust plug, 16 brake pedal, 2a piston adjustment lever adjustment bolt and 14a piston reverse prevention pin hawk. Support springs, 3a is one so that the braking force due to the so let to operate the clutch pedal stepped up interval limit up while driving the clutch pedal when the stepped with the clutch pedal and the brake pedal when the plain driving a clutch pedal activation interval limit adjusting plate does not occur.

As described above, in the present invention, as shown in FIG. 4, when the piston 12 in the reverse prevention cylinder 1 is retracted, the rear end of the piston 12 is located at the edge of the inclined surface step 12a. The oil inlet hole 1a is slightly open and the double check valve 10 is opened backward and the oil extrusion hole 1b is closed by the ball valve 11, but the oil in the brake line 6 is half moon 1c. And the brake is released when the amount of oil in the anti-retraction cylinder (1) is adjusted to the amount of brake under operation. When the clutch pedal (3) is stepped on, the brake is not activated or the brake pedal (16) When pressing ()), the oil in the brake master cylinder 4 flows into the oil inlet hole 1a as shown in FIG. 5 and is extruded into the brake line 6 through the oil compression hole 1b to brake operation.

When the pedal pedal 3 is stepped to the clearance gap, the clutch pedal 3 presses the piston operating lever 2, and the piston operating lever 2 pushes the piston rod 8 in FIG. As shown in FIG. 2, the piston 12 compresses the piston 12 and thus the double valve valve spring 10e pushes the double valve 10 to close the oil inlet hole 1a, and the inner end of the piston operating lever 2 is provided. The piston anti-retraction pin hawk adjustment bolt (7a) screwed into (7) is lifted, and the tip of the piston anti-retraction pin hawk (14) is pushed down by the piston anti-retraction pin hawk retaining spring (14a), and the piston anti-retraction pin (13) When the brake pedal 16 is pressed down, the hydraulic pressure of the brake master cylinder 4 is greater than the compressive force of the piston 12 which is stepping on the clutch pedal 3, and thus the piston 12 that has been compressed as shown in FIG. The hydraulic pressure of the brake master cylinder 4 gradually While it is thick, the piston is prevented from going back by being caught by the anti-retraction pin 13, and the double check valve 10 is closed by the double check valve liter spring 10e while closing the oil hydraulic hole 1a. The hydraulic pressure of the brake master cylinder (4) is extruded into the oil extrusion hole (1b) while opening the double check valve (10) to operate the brake. When the brake pedal 16 is released in this state, the brake master cylinder is released. (4) Since the hydraulic pressure is blocked, the double check valve 10 closes the oil inlet hole 1a due to the elasticity of the double check valve 10 spring as shown in FIG. 8 (the oil in the cylinder at this time). Presses the brake pedal and the compressed oil does not go out and is in a compressed state.) The compression pedal of the piston 12 generated by stepping on the clutch pedal 3 causes the brake pedal to The compressed oil in the anti-retraction cylinder 1 when stepped is extruded toward the brake line 6, so even if the brake pedal 16 is stepped on, the compressed oil in the reverse prevention cylinder 1 is pressed while the clutch pedal 3 is stepped on. By increasing the pressure on the brake line (6) by using the brake operation is maintained, and when the clutch pedal (3) was stepped on next, the piston 12 is reversed, so the reverse prevention cylinder (1) The hydraulic pressure inside is weakened and the valve 11 is closed, but since the hydraulic pressure on the brake line 6 side is returned to the vandal beam 1c drilled in the oil extrusion hole 1b, the brake operation is released and at the same time the piston operating lever (2) is returned by the elastic force of the piston spring 12b, while lowering the piston check pin adjustment bolt (7a) inside the piston actuating lever (2), so the piston reverse prevention pin adjustment bolt (7a) Press the rear end of the turn reversal prevention pin hawk 14 so that the tip of the piston reversal prevention pin hawk 14 rises from the shaft 9b to raise the piston reversal prevention pin 13 to move the piston 12 to the fourth position. As shown in Fig.

In this way, if the user presses the clutch pedal 3 to the clearance gap and presses the brake pedal 16 and then releases the brake pedal 16, the brake operation is maintained even when the clutch pedal 3 is pressed. When the brake pedal is released to step on the accelerator, the brake operation is maintained as long as the pedal pedal is stepped on, so the vehicle starts at the moment of releasing the clutch pedal (3) without swinging back momentarily. When the vehicle that once stopped on the uphill starts again, there is no driver and anxiety due to the momentary backward swing, and it can reduce the consumption of fuel to obtain the driving force doubled to the backward force of the car. To prevent wear and tear and collision with car behind It is effective to prevent.

Claims (1)

The double check valve 10 in the reverse prevention cylinder 1 is held by the double check valve re- spun spring 10e so that the rear end is inserted into the inner hole of the piston 12, and the piston 12 retracts the piston 12 spring. 12b), the double check valve 10 opens and closes the oil inlet hole 1a, and with the piston 12, the oil in the anti-retraction cylinder 1 is half a month facing the ball valve 11. (1c) is extruded into the oil extrusion hole (1b), and the piston anti-retraction pin (13) is attached to the cylinder upper projection (1d) at the rear end of the piston (12) slightly at the edge of the inclined surface step (12a) of the piston rear end. It is placed on the floor and raised and lowered as the piston anti-retraction pin hawk 14, and the piston anti-retraction pin hoe 14 and the piston 12 are operated by the piston actuating lever 2 to clutch the anti-retraction cylinder (1). The piston actuating lever (2) is attached to the front wall of the vehicle in the clearance gap of the pedal, and the clutch pedal (3) Operate by stepping on the clutch pedal and brake pedal by placing it at the boundary between the clearance gap and the clutch operation gap and installing the oil in the brake master cylinder (4) to be extruded through the anti-retraction cylinder (1) into the brake line (6). The brake pedal is prevented from moving forward and backward using the automobile clutch pedal, wherein the brake pedal is maintained when the brake pedal is pressed and the brake pedal is pressed.

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