WO2010005229A2

WO2010005229A2 - Apparatus for preventing the backward rolling of a vehicle

Info

Publication number: WO2010005229A2
Application number: PCT/KR2009/003720
Authority: WO
Inventors: 박길자
Original assignee: 주식회사 성산오토랜드
Priority date: 2008-07-07
Filing date: 2009-07-07
Publication date: 2010-01-14
Also published as: WO2010005229A3; KR20100005368A

Abstract

The present invention relates to an apparatus for preventing the backward rolling of a vehicle, which maintains the vehicle in a braked state even when the brake pedal is released and cancels the braked state when an accelerator pedal is pressed to enable the vehicle to travel. In detail, the apparatus for preventing the backward rolling of a vehicle includes a cylinder having an outer surface with an electromagnet, a connector coupled to the open side of the cylinder having an open/shut groove formed at the side coupled to the cylinder, a plunger inserted into the cylinder having a first flow channel, a block coupled to one side of the connector having an outer surface with a second flow channel and a center with a third flow channel, and a check valve arranged in the open/shut groove having a center with a fourth flow channel, thereby improving safety, enabling easy assembly and production, and preventing noise.

Description

[Revision 17.09.2009] as prescribed by Rule 26

The present invention relates to a vehicle anti-backlash device, which maintains a braking state even when the brake is stepped on and then releases the brake when the accelerator is stepped. Specifically, the safety is improved, the assembly production is easy, and the noise can be prevented. To a vehicle backlash prevention device.

The brake is to operate the brake drum by using the hydraulic pressure to hold the wheel to brake the operation, the accelerator is to open the throat valve of the intake pipe to increase the output of the engine to be accelerated.

Therefore, in order to stop during operation, the accelerator is depressed and the brake is decelerated and then stopped, and in order to run again in the stopped state, the accelerator is released by stepping on the accelerator while the brake is released.

At this time, a slight time difference occurs in order to receive the driving force by stepping on the accelerator after the brake is released. If the vehicle is stopped at a sharp uphill, the vehicle is pushed back by its own weight during the time difference described above. . This phenomenon occurs not only in vehicles with manual transmissions, but also in vehicles with automatic transmissions.In this case, the greater the inclination of the road or the greater the weight of the vehicle, the greater the pushback width and the greater the risk of collision with the vehicle behind it. You lose.

Therefore, in order to solve the above problems, even if the brake pedal is stepped on and released, a brake preventing device is provided so that the brake is released immediately when the accelerator is stepped on and the brake is released. By reducing the time lag between the accelerator pedal and reducing the back push, the inconvenience of having to keep pressing the brake pedal in the stop state.

However, the conventionally developed reverse prevention devices are difficult to produce precisely due to their low structural safety, they are difficult to assemble and manufacture due to their complicated structure, and various improvements such as noise are generated because the internal structures move and collide with each other during operation. have.

The vehicle reverse prevention apparatus of the present invention is intended to solve the problem that the conventional reverse prevention devices are difficult to precise production in structure, thereby deteriorating safety due to leakage of hydraulic pressure.

The vehicle reverse prevention apparatus of the present invention is to solve the problem that the assembly of the conventional reverse prevention devices are difficult to produce the assembly.

The vehicle reverse prevention apparatus of the present invention is intended to solve the problem of noise generated by collision between internal components when the conventional reverse prevention apparatus is operated.

The present invention is configured with a hydraulic cylinder interlocked with the brake on one side, a brake drum for holding the wheel on the other side, an electromagnet opening and closing switch interlocked with the brake and the accelerator is configured, even if the brake is pressed and released In the vehicle backlash prevention device to keep the brakes released when the accelerator is pressed down,

An electromagnet operated by the electromagnet open / close switch is installed on an outer surface thereof, a first hydraulic door is formed at one center thereof, and the other side of which is open; A connector coupled to the other open side of the cylinder, the opening and closing groove being formed at the center of the coupled one side, and the second hydraulic entrance and exit being formed at the other end of the opening and closing groove; The first stepped surface is formed to be advanced to the other side by the operation of the electromagnet in the state inserted into one side of the cylinder, the other outer surface is formed, the first penetrating from the center of one end surface to the first stepped surface A plunger in which one flow path is formed; The opening and closing groove is sealed in a state coupled to one side of the connector, and the outer surface is spaced apart from the inner surface of the cylinder, and a second flow path is formed to penetrate through the edge of the other end surface from the spaced outer surface and connect to the opening and closing groove. A block formed at a center thereof with a third flow passage penetrating from one side to the other side and connected to the opening / closing groove; And a check valve having one side end surface opened and closed while the inside of the closed opening and closing groove is opened and moving, the check valve having a fourth flow passage formed at a center thereof.

At this time, the center of the block is formed with a press-in groove and a tube groove that is gradually expanded from any one point on the third flow path to the other side cross-section so that the second flow path vertically penetrated from the outer surface of the block through the tube groove A hole pin formed to be connected to a groove, the other end surface of the block being coincided with the other end surface of the block in a state of being fitted into the press-in groove of the block, and having a fifth flow path connected to a third flow path through the center; It is made by configuring.

In addition, a second stepped surface is formed on one side of the outer surface of the block to face the first stepped surface, is coupled between the first stepped surface of the plunger and the second stepped surface of the block to remove the plunger from the block. It comprises a first coil spring formed to push out.

In addition, a second coil spring is formed between the block and the check valve to push out the check valve from the block, wherein the second coil spring is coupled to the coupling groove or the pipe groove formed to extend from the other end of the third flow path. It is configured to be coupled between the hole pins.

In addition, between the cylinder and the plunger, between the plunger and the block, and between the block and the check valve, an elastic pad for buffering mutual collision is formed on one side opposite to each other, the elastic pad is formed of fluorine rubber .

According to the vehicle anti-backlash device of the present invention, it is possible to prevent the leakage of the hydraulic pressure through the interaction to ensure the safety of the use is very useful effect that greatly improves the reliability of the product.

According to the vehicle backlash prevention apparatus of the present invention, since the assembly can be easily produced by the improved structure, a very useful effect of greatly improving productivity is exerted.

According to the vehicle anti-vibration apparatus of the present invention, it is possible to cushion the collision between the internal components by the elastic pad during operation to prevent noise, thereby exhibiting a very useful effect of further improving the reliability of the product.

1 is a block diagram showing the overall configuration associated with a vehicle reverse prevention apparatus to which the present invention is applied.

Figure 2 is an exploded view showing a vehicle reverse prevention device to which the present invention is applied.

Figure 3 is an assembly view showing a reverse device for a vehicle to which the present invention is applied.

Figure 4 is a braking state action diagram of the vehicle reverse prevention device to which the present invention is applied.

Figure 5 is a state of operation of the vehicle reverse prevention device to which the present invention is applied.

Figure 6 is an action state of the loosening of the vehicle reverse prevention device to which the present invention is applied.

Figure 7 is an exploded view showing another embodiment of the vehicle reverse prevention apparatus to which the present invention is applied.

FIG. 8 is an assembly view illustrating a reverse apparatus for a vehicle to which FIG. 7 is applied.

10: brake 20: hydraulic cylinder

30: brake drum 40: accelerator

50: electromagnet open / close switch 60: throat valve

100: backstop

110: cylinder 112: electromagnet

114: first hydraulic doorway

120: connector 122: opening and closing groove

124: second hydraulic doorway

130: plunger 132: first step surface

134: first euro

140: block 142: second step surface

144: second euro 146: third euro

148: engagement groove 148a: indentation groove

148b: tube groove 148c: hole pin

148d: Fifth Euro

150: check valve 152: fourth flow path

160: first coil spring

170: second coil spring

180: elastic pad

A preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram showing the overall configuration associated with a vehicle backlash prevention apparatus to which the present invention is applied, FIG. 2 is an exploded view showing a vehicle backlash prevention apparatus to which the present invention is applied, and FIG. 3 is a vehicle backlash prevention apparatus to which the present invention is applied. 4 is a braking state action diagram of the vehicle reverse prevention device to which the present invention is applied, FIG. 5 is a maintenance state action diagram of the vehicle reverse prevention device to which the present invention is applied, and FIG. FIG. 7 is an exploded view showing another embodiment of the vehicle reverse prevention apparatus to which the present invention is applied, and FIG. 8 is an assembled view showing the vehicle reverse prevention apparatus to which FIG. 7 is applied.

As shown in FIGS. 1 to 8, the vehicle backlash prevention apparatus 100 of the present invention has a cylinder 110 having an electromagnet installed on an outer surface thereof, and an opening and closing groove formed at one side thereof while being coupled to the other open side of the cylinder. Connector 120, a plunger 130 having a first flow path is inserted into the cylinder, coupled to one side of the connector, a block 140 formed with a second flow path on the outer surface and a center third flow path and inside the opening and closing grooves While installed in the center is composed of a check valve 150 formed with a fourth flow path.

Before explaining the features of the present invention look at the overall configuration to which the reverse prevention device 100 of the present invention is applied.

As shown in FIG. 1, the reverse prevention apparatus 100 of the present invention includes a hydraulic cylinder 20 interlocking with the brake 10 on one side, and a brake drum 30 for holding a wheel on the other side. In addition, an electromagnet opening and closing switch 50 interlocked with the brake 10 and the accelerator 40 is configured. Accordingly, when the brake 10 is pressed, the brake fluid of the hydraulic cylinder 20 is supplied to the brake drum 30 through the reverse prevention device 100 to brake, and at the same time, the electromagnet opening / closing switch 50 is closed and the electromagnet ( Since the magnetic field flows to 112 to close the plunger 130 to the block 140, the brake fluid supplied to the brake drum 30 may not flow back and maintain a braking state.

When the accelerator 40 is pressed in such a state, the electromagnet opening / closing switch 50 is opened and the magnetic field is extinguished in the electromagnet 112, so that the plunger 130 and the block 140 fall, so that the brake fluid supplied to the brake drum 30 is provided. Through the reverse prevention device 100, the hydraulic cylinder 20 is flowed back to release the braking, and at the same time, the thrower valve 60 of the carburetor is opened so that the vehicle can travel.

That is, the reverse prevention apparatus 100 of the present invention maintains the braking state even when the brake 10 is pressed and then releases the braking when the accelerator 40 is pressed, so that the vehicle is pushed back even after stopping on a steep hill road. You can start without. Of course, such an operation is made in the state that the electromagnet open / close switch 50 operates, and when the electromagnet open / close switch 50 does not operate, the brake is made by stepping on the brake 10, and the brake 10 is released when the brake 10 is released. This is done with the usual action of being released.

The reverse prevention device 100 of the present invention for realizing this is as shown in the cylinder 110, connector 120, plunger 130, block 140 and check valve 150 It is composed.

The cylinder 110 is provided with an electromagnet 112 actuated by an electromagnet opening / closing switch 50 on an outer surface thereof, and a first hydraulic entrance 114 connected to the hydraulic cylinder 20 at one center thereof is formed, and the other side thereof is It is formed in an open state.

The connector 120 is coupled to the other open side of the cylinder 110, the opening and closing groove 122 is formed at the center of the combined one side, the other end of the opening and closing groove 122 is connected to the brake drum 30 2 hydraulic entrance 124 is formed. At this time, the outer surface of the connector 120 is screwed to the inner surface of the cylinder (110).

The plunger 130 is formed of a metal so as to be advanced to the other side by the operation of the electromagnet 112 in the state inserted into one side of the cylinder 110, the first step surface is cut to allow the brake fluid to flow on the other outer surface 132 is formed, and a first flow path 134 penetrating from the center of one end surface to the first step surface 132 is formed. In this case, the first flow path 134 penetrates from the center of one end surface to the first step surface 132 so as to be vertical or radial.

The block 140 seals the opening and closing groove 122 in a state in which the block 140 is coupled to one side of the connector 120, and an outer surface of the block 140 is spaced apart from the inner surface of the cylinder 110 to allow the brake fluid to flow therethrough. A second flow path 144 penetrating through the outer surface of the other end surface to be connected to the opening and closing groove 122 is formed, and the third flow path 146 penetrating from one side to the other side and connected to the opening and closing groove 122 at the center thereof. Is formed. At this time, the second flow path 144 penetrates to be vertical or radial. In addition, the outer surface of the block 140 is screwed to the inner surface of the connector 120, for this purpose, the female thread protruding therefrom is formed at the end of the opening and closing groove 122 of the connector 120. In addition, the third flow path 146 is opened and closed by a cross section of the plunger 130.

On the other hand, the second flow path 144 as shown in Figures 2 and 3 can be formed through each other in a form bent from the outer surface to the other cross-section, as shown in Figures 7 and 8 perforated pin ( Through the assembly of the 148c, the second flow path 144 vertically penetrated may be formed to be connected to the other end surface. That is, in the center of the block 140, a press-fit groove 148a and an associated pipe 148b, which are gradually expanded from one point on the third flow path 146 to the other end surface, are formed, and thus from the outer surface of the block 140. The second flow path 144 vertically penetrated is formed to be connected to the opening / closing groove 122 through the tube pipe groove 148b while being fixed to the press-fit groove 148a of the block 140. The other end surface coincides with the other end surface of the block 140, and a hole pin 149c having a fifth flow path 148d connected to the third flow path 146 is formed at the center thereof.

The check valve 150 is installed inside the closed opening and closing groove 122 to move and open and close the second flow passage 144 at one side thereof, and a fourth flow passage communicating with the third flow passage 146 at the center thereof. 152 is formed. In this case, the check valve 150 is formed of a non-ferrous metal to open and close the second flow path 144 while moving in accordance with the flow of hydraulic pressure without being affected by the electromagnet 112.

In addition, the reverse coil prevention apparatus 100 of the present invention may be configured to the first coil spring 160 so that the close contact between the plunger 130 and the block 140 is made smoothly. That is, the first stepped surface 132 and the block (132) of the plunger 130 in a state where the second stepped surface 142 is formed to face the first stepped surface 132 on one side of the outer surface of the block 140. The first coil spring 160 formed to be coupled to the second stepped surface 142 of the 140 and pushed together is configured.

In addition, in the reverse prevention apparatus 100 of the present invention, the second coil spring 170 may be configured to smoothly contact and drop between the block 140 and the check valve 150. That is, as shown in FIGS. 2 and 3, the second coil spring 170 has a coupling groove 148 in which the third flow path 146 is extended in the other end surface of the block 140. Is coupled to the coupling groove 148 of the block 140 and configured to push out the check valve 150, or coupled between the canal groove 148b and the hole pin 148c as shown in Figures 7 and 8 And to push out the check valve 150. At this time, the elasticity of the first and second coil springs (160, 170) is formed smaller than the force by the hydraulic and electromagnet 112.

In addition, between the cylinder 110 and the plunger 130, between the plunger 130 and the block 140, and between the block 140 and the check valve 150 to prevent the mutual collision in any one cross section facing each other An elastic pad 180 for coupling is formed. That is, the elastic pad 180 is coupled between the cylinder 110 and the plunger 130, between the plunger 130 and the block 140, and between the block 140 and the check valve 150 to prevent noise from colliding with each other. It is for the purpose of forming a fluorine rubber.

Therefore, according to the reverse prevention device 100 of the present invention having such a configuration is made as shown in Figures 4 to 6. Of course, other embodiments as shown in Figures 7 and 8 have the same effect.

First, when the brake 10 is pressed down, as shown in FIG. 4, the brake fluid flows from the hydraulic cylinder 20 into the cylinder 110, and the plunger 130 is pushed in close contact with the block 140 and the check valve 150. ) Is opened so that the brake flows into the brake drum 30 through the first flow path 134, the second flow path 144, and the fourth flow path 152 and brakes as shown in the arrow direction. At this time, the third flow path 146 is in a closed state by the plunger 130. In addition, the plunger 130 is in close contact with the block 140 by the operation of the electromagnet 112 while pressing the brake 10 and closing the electromagnet opening and closing switch 50.

Subsequently, when the brake 10 is released, the plunger 130 remains in close contact with the block 140 by the operation of the electromagnet 112 as shown in FIG. 5, and the check valve 150 is closed by hydraulic pressure. Since the second flow path 144 is closed, the hydraulic pressure supplied to the brake drum 30 does not escape and maintains a braking state. At this time, the hydraulic cylinder 20 stops the operation, the third flow path 146 is maintained in a closed state by the plunger 130.

Meanwhile, when the accelerator 40 is stepped on, the electromagnet 112 is stopped while the electromagnet opening / closing switch 50 is opened as shown in FIG. 6, so that the plunger 130 is retracted from the block 140 by hydraulic pressure, and at the same time, When the closed third flow path 146 is opened, the brake fluid supplied to the brake drum 30 is the fourth flow path 152 as shown by the arrow direction, and when the hole pin is configured, the fifth flow path 148d and the third flow path 146. The braking is released while moving to the hydraulic cylinder 20 through the first flow path 134. At this time, the accelerator valve 60 is opened by the accelerator 40 to increase the output of the engine so that the vehicle that has been stopped can travel.

Although the present invention as described above has been described with reference to one embodiment shown in the drawings, this is merely exemplary and various modifications and equivalent other embodiments are possible to those skilled in the art. Will understand. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

Therefore, according to the vehicle anti-backlash device 100 of the present invention can prevent the leakage of hydraulic pressure through the interaction to ensure the safety of the use, as well as greatly improving the reliability of the product, and can be easily assembled and produced by the improved structure The productivity can be greatly improved, and the operation of the product can be further improved since the elastic pad 180 can prevent collisions between internal components by preventing noise.

Claims

The hydraulic cylinder is interlocked with the brake on one side, the brake drum is configured to hold the wheels on the other side, and the electromagnetic opening / closing switch is interlocked with the brake and the accelerator, and maintains the braking state even when the brake is pressed and released. In the vehicle backlash prevention device to allow the braking to run when stepping on,

An electromagnet operated by the electromagnet open / close switch is installed on an outer surface thereof, a first hydraulic door is formed at one center thereof, and the other side of which is open;

A connector coupled to the other open side of the cylinder, the opening and closing groove being formed at the center of the coupled one side, and the second hydraulic entrance and exit being formed at the other end of the opening and closing groove;

The first stepped surface is formed to be advanced to the other side by the operation of the electromagnet in the state inserted into one side of the cylinder, the other outer surface is formed, the first penetrating from the center of one end surface to the first stepped surface A plunger in which one flow path is formed;

The opening and closing groove is sealed in a state coupled to one side of the connector, and an outer surface is spaced apart from the inner surface of the cylinder, and a second flow passage is formed through the spaced apart outer surface and connected to the opening and closing groove. A block formed at a center thereof with a third flow passage penetrating from one side to the other side and connected to the opening / closing groove; And

And a check valve having one side cross section opening and closing the third flow path while being installed and moving inside the sealed opening and closing groove, and having a fourth flow path formed at a center thereof.
According to claim 1, wherein the center of the block is formed with a pressurized groove and an oil pipe groove that is gradually expanded from one point on the third flow path to the other cross-section so that the second flow path vertically penetrated from the outer surface of the block is the oil pipe groove While formed to be connected to the opening and closing groove through,

And a hole pin having a second cross section coinciding with the other cross section of the block in a state of being fitted into the indentation groove of the block and having a fifth flow passage connected to a third flow passage at a center thereof. Vehicle backlash prevention device.
According to claim 1 or 2, wherein the outer surface of the block is formed on the side of the second stepped face to face the first stepped surface, between the first stepped surface of the plunger and the second stepped surface of the block And a first coil spring coupled to the first coil spring to push the plunger out of the block.
3. A second coil spring as recited in claim 1 or 2, wherein a second coil spring is coupled between the block and the check valve to push the check valve out of the block, the second coil spring extending from the other end of the third flow path. Vehicle formed backward prevention device, characterized in that configured to be coupled between the formed groove or the pipe groove and the hole pin.
2. The vehicle anti-backlash method as set forth in claim 1, wherein an elastic pad is formed between the cylinder and the plunger, between the plunger and the block, and between the block and the check valve to prevent mutual collisions at any one end surface facing each other. Device.
The apparatus of claim 5, wherein the elastic pad is made of fluorine rubber.