KR200276649Y1 - A aid device for hydraulic clutch of motor - Google Patents

Abstract

The present invention is installed between the master cylinder and the transmission to amplify the hydraulic pressure flowing from the master cylinder by using the vacuum pressure to be transmitted to the transmission through the opera cylinder, so that the clutch operation lightly with a small force and in case of malfunction Edo vehicle relates to an auxiliary device of the hydraulic clutch so that it does not interfere at all.

The present invention is connected to the vacuum connection pipe 500 is connected from the engine, and always has a spring 120 for the predetermined elasticity to act on the piston rod 110, the operation of the force cylinder 200 to be described later A vacuum cylinder 100 for amplifying;

The hydraulic pressure flowing from the master cylinder, the piston 210 is coupled to the piston rod 110 of the piston cylinder 110 of the vacuum cylinder 100 is operated by the operation of the piston 110 of the vacuum cylinder 100, the piston 210 is provided with a packing 214 on the outer periphery of the body 211, and forming an oil through hole 212 therein, forming an oil valve 213 for opening the oil through hole 212, When the vacuum cylinder 100 is not operated, the oil valve 213 for opening and closing the oil through hole is opened, the hydraulic cylinder 200 is configured to communicate with the oil flowing from the master cylinder to the opera cylinder side;

An air valve 300 for operating the vacuum cylinder 100 that is operated by hydraulic pressure transmitted through the oil through hole 410 of the connecting body 400 to be described later from the tension cylinder 200;

It is integrally formed in the vacuum cylinder outer cylinder 130, and supports and accommodates the force cylinder 200 and the air valve 300 member, the piston rod 110 and the force cylinder of the vacuum cylinder (100) 200 is connected, the vacuum cylinder 100 and the air valve 300 to connect, the oil cylinder hole 410 and the vacuum cylinder for interlocking the force cylinder 200 and the air valve 300, It is configured to include a connecting body 400 formed a vacuum through hole 420 for 100,

Since the clutch operation can be made light with little force, and when the clutch operation is not performed, the hydraulic pressure is always in a state of communication between the master cylinder and the opera cylinder, so there is no obstacle in the clutch operation even if a malfunction such as an air valve occurs. It is a technology that makes it easy to use a car with a clutch that saves a lot of money with ease.

Description

AID DEVICE FOR HYDRAULIC CLUTCH OF MOTOR

The present invention relates to an auxiliary device that can easily operate the hydraulic clutch of the vehicle with less force,

Specifically, it is installed between the master cylinder and the transmission to amplify the hydraulic pressure flowing from the master cylinder using the vacuum pressure to be transmitted to the transmission through the opera cylinder, so that the clutch operation lightly with a small force and in case of malfunction Edo vehicle relates to an auxiliary device of the hydraulic clutch so that it does not interfere at all.

In automobiles, a clutch is provided between the engine and the transmission to control the rotational force of the engine transmitted to the power transmission device, and is operated by the driver's stepping on the clutch pedal when the vehicle speed is shifted.

In operating such a clutch, the pedaling force is transmitted to the mechanical type that is transmitted through a rod or wire, to the master cylinder that generates hydraulic pressure by pressing the pedal, and to an opera cylinder that receives this hydraulic pressure and transmits it to the transmission. It is classified as a hydraulic to block the transmission, the present invention relates to a hydraulic.

In general, a vehicle equipped with a clutch requires too much force to operate the clutch, so that, for example, oil consumption is reduced by about 30% compared to a no-clutch vehicle, the weight of the body is significantly lighter, and a lower price can be obtained. In spite of various advantages such as the driver, the driver is using a clutch clutch because the clutch operation is burdensome.

Auxiliary devices are introduced as a solution to solve the above-mentioned problem of clutch operation, and among them, a clutch auxiliary device as shown in FIG.

The conventional clutch assistance device 40 is provided between the master cylinder 20 and the opera cylinder 30 of the clutch operated by the clutch pedal 10, and the vacuum cylinder 41 piston rod 41a. It is linked to the, consists of an auxiliary cylinder 42, the hydraulic pressure introduced from the master cylinder 20, and an air valve 43 for the piston operation of the vacuum cylinder (41).

However, in the conventional clutch auxiliary device 40 of the above-described configuration, the cylinder rod of the vacuum cylinder 41 and the piston of the auxiliary cylinder 42 are not connected to each other, and the return function of the piston 42a is provided in the auxiliary cylinder. Relying only on the force of the spring 42b, the spring 42b is weakened due to thermal deformation and the like, and the air valve 43 provided separately also has a failure due to thermal deformation. In the event of such a failure, clutch operation is completely impossible because it completely cuts off the master cylinder 20 and the opera cylinder 30. Therefore, the vehicle is in a difficult situation that the vehicle cannot be misused. It is true.

The present invention has been devised to solve the above problems,

An object of the present invention is to provide a piston rod of a vacuum cylinder, a force cylinder connected thereto and an air valve operated in communication with the force cylinder, and opening and closing the oil through hole and the oil through hole in which oil communicates with the piston of the force cylinder. The oil valve is opened when the piston of the force cylinder does not step on the clutch pedal, so that the oil flowing from the master cylinder communicates with the opera cylinder side, thereby making the clutch operation of the vehicle lighter, The present invention provides an auxiliary device for a hydraulic clutch of a vehicle that can safely and easily use a vehicle having a clutch having various advantages, so as not to interfere with clutch operation even if a failure occurs in the device.

1 is a cross-sectional view of a preferred embodiment of the present invention.

2 is an exploded cross-sectional view of a portion of FIG. 1;

3 is an enlarged view of a portion of FIG. 1;

4 is an operational state diagram of FIG.

5 is an enlarged view of a portion of FIG. 4.

6 is an enlarged view illustrating main parts of FIG. 1;

a is an enlarged view of main parts of FIG.

b is a side view of a,

c is the operating state of b.

7 is a configuration diagram of the operating piece according to a preferred embodiment of the present invention,

a is a front view,

b is a side view.

8 is a configuration diagram of the operator support according to an embodiment of the present invention,

a is the front section view,

b is a side view.

9 is a block diagram of a washer that is a fixing member according to a preferred embodiment of the present invention,

a is the front section view,

b is a side view.

Explanation of symbols on the main parts of the drawings

1: Auxiliary device for automobile hydraulic clutch 100: Vacuum cylinder

101: pin 111: piston ram

110: piston rod 120: spring

130: outer tube 140: packing

200: force cylinder 210: force cylinder piston

212: oil through hole 213: oil valve

213a: switchgear 213b: spring

213d: Operation 214: Packing

215: working piece groove 220: external cylinder cylinder

300: air valve 310: piston

311 cylinder 320 connector

321: groove groove 322: vacuum hole

330: operator 331a: one side flange of the operator

331b: other side flange of the operator 340: operator support

341: air inlet 351,352; spring

370: air valve housing 371: air inlet

372: air through hole 373; Vacuum hole

400: connecting body 410: oil through hole

420: vacuum through hole 430: air valve support groove

440: support cylinder cylinder 450: oil through hole

460: packing member 471; sleeve

472: washer 473: snap ring

The present invention to achieve the above object,

In a hydraulic clutch device in which hydraulic pressure generated by operating a clutch pedal of a vehicle acts on a piston in a master cylinder and an opera cylinder to control a clutch, the clutch auxiliary device provided between the master cylinder and the opera cylinder of the vehicle,

A vacuum cylinder connected to a vacuum tube connected from an engine, having a spring for always applying a predetermined elasticity to the piston rod, and for amplifying the operation of the force cylinder described later;

The hydraulic pressure flowing from the master cylinder, and the piston is coupled to the piston rod of the vacuum cylinder by a pin actuated by the operation of the piston of the vacuum cylinder, the piston is provided with a seal on the outer periphery of the body to form an oil through hole therein, An oil valve configured to form an oil valve for opening and closing the oil through hole, and the oil valve for opening and closing the oil through hole when the vacuum cylinder is not operated so that oil flowing from a coalescing master cylinder communicates with the opera cylinder side;

An air valve for operating the vacuum cylinder, the air valve being operated by hydraulic pressure transmitted through the oil through-hole of the connecting body to be described later from the tension cylinder;

Integrally formed in the outer cylinder of the vacuum cylinder, supporting and accommodating the force cylinder and the air valve member, connecting the piston rod and the force cylinder of the vacuum cylinder, connecting the vacuum cylinder and the air valve, It characterized in that it comprises a connecting body formed with a vacuum cylinder for the oil cylinder and the vacuum cylinder for the force cylinder and the air valve to interlock.

The vacuum cylinder is a rubber packing and the center is fixed to the ram of the piston, the peripheral portion is fixed to the cylinder outer cylinder,

A piston rod coupled to the piston and the pin of the force cylinder,

A spring for always supporting the piston rod with a predetermined elasticity,

One side of the outer cylinder is connected to the engine tube for connecting the engine, and the other side is characterized in that it is provided with an air valve connecting hole.

The force cylinder is formed so that the operation piece to be described later to the one side of the body of the piston is in operation, the operating piece groove to be supported in communication with the oil through hole,

The oil valve of the piston is operated in the oil through hole and has a flange on one side, a spring for pushing the switch to one side, a snap ring for fixing the spring, and acts on one end of the switch It consists of a working piece for operating the Gaepejaneung,

The working piece is characterized in that it is configured to be operated by the encounter with the opening member receiving the elasticity of the spring of the oil valve on one side, and the fixing member of the connecting body in contact with the end of the piston on the other side.

The air valve is coupled to the air valve support groove of the connecting body, the cylinder for operating by the hydraulic pressure flowing from the oil through hole of the connecting body;

It is provided between the piston of the cylinder and the operator to be described later, is operated by the operation of the cylinder piston to move the operator to be described later, to form the vacuum groove of the air valve and the vacuum cylinder by forming a plurality of inlet grooves and the vacuum cylinder With connector for,

It is linked by the operation of the piston of the cylinder, and provided with flanges at both ends to open and close the air inlet, one side flange to open and close the inlet groove of the connector,

The other side flange is configured to open and close the air inlet hole of the operator support described later,

An operator is formed so that a gap of the connector and a predetermined gap is formed when the air is shut off of the valve so that the vacuum passage of the vacuum cylinder is made.

An operator support receiving the one side flange of the operator and fixed to the valve housing and forming an air hole for opening and closing by operation of the operator;

A spring for holding the operator support and the connector side flange of the operator, a spring for supporting the operator support and the connector,

A plurality of packing members for airtightness,

The connector, the operator, the operator support, a plurality of springs and the packing member is accommodated in the inner space, and the air inlet hole on the opening and closing side of the operator and to form an air through-hole connected to the vacuum cylinder in the middle of the operator and the connection It characterized in that it comprises a housing coupled to the body fixed.

In addition, the connecting body is introduced from the master cylinder, and forms an oil through-hole penetrated under the piston of the force cylinder,

Forming a supporting cylinder supporting groove in which the piston rod of the vacuum cylinder and the supporting cylinder are connected, and the supporting cylinder supporting groove has a plurality of packing members for airtightness;

As a fixing member for pressing and fixing the packing member, a sleeve, a washer formed by pressing the sleeve and a plurality of oil through grooves formed on the periphery, and give a snap ring for fixing the washer,

Forming an air valve support groove for assembling and coupling the air valve,

And a vacuum through hole for the vacuum passage between the vacuum cylinder and the air valve, and an air cock for extracting air from the vacuum through hole.

Hereinafter, a preferred embodiment of the auxiliary device of the hydraulic clutch of the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view of a configuration according to a preferred embodiment of the present invention, Figure 2 is a partially exploded enlarged view of Figure 1, Figure 3 is a partially enlarged view of Figure 1,

4 is an operating state diagram of FIG. 1, and FIG. 5 is an enlarged view of a portion of FIG. 4.

As shown in Figures 1 to 5, the auxiliary device 1 of the automobile hydraulic clutch according to a preferred embodiment of the present invention,

Is connected to the vacuum connection pipe 500 connected from the engine, and has a spring 120 for always acting on the piston rod 110, a predetermined elasticity, for amplifying the operation of the force cylinder 200 to be described later A vacuum cylinder 100;

The hydraulic pressure flowing from the master cylinder, the piston 210 is coupled to the piston rod 110 of the piston cylinder 110 of the vacuum cylinder 100 is operated by the operation of the piston 110 of the vacuum cylinder 100, the piston 210 is provided with a packing 214 on the outer periphery of the body 211, and forming an oil through hole 212 therein, forming an oil valve 213 for opening the oil through hole 212, When the vacuum cylinder 100 is not operated, the oil valve 213 for opening and closing the oil through hole is opened, the hydraulic cylinder 200 is configured to communicate with the oil flowing from the master cylinder to the opera cylinder side;

An air valve 300 for operating the vacuum cylinder 100 and operated by hydraulic pressure transmitted through the oil through hole 410 of the connecting body 400 to be described later from the force cylinder 200;

It is integrally formed in the vacuum cylinder outer cylinder 130, and supports and accommodates the force cylinder 200 and the air valve 300 member, the piston rod 110 and the force cylinder of the vacuum cylinder (100) An oil through-hole 410 and a vacuum cylinder 100 for connecting the 200, connecting the vacuum cylinder 100 and the air valve 300, and allowing the force cylinder 200 and the air valve 300 to work together. It is configured to include a connection body 400 for forming a vacuum through hole 420 for).

The vacuum cylinder 100, the center of which is fixed to the ram 111 of the piston, a rubber packing 140 of the peripheral portion fixed to the cylinder outer cylinder 130,

A piston rod (110) forming a pin hole (111) for coupling with the piston (210) and the pin (101) of the force cylinder (200);

Spring 120 for always supporting the piston rod 110 with a predetermined elasticity,

One side of the outer cylinder 130 is provided with a vacuum connection pipe connection hole 131 for connecting to the engine, and the other side is provided with an air valve connection hole 133, the inside is vacuumed by the engine, the air valve By the air flowing from the 300 to be a rapid compression occurs.

The piston 210 of the force cylinder 200 forms a pin hole 218 for coupling to the piston rod 110 and the pin 101 of the vacuum cylinder 100 on one side.

The oil valve 213 is operated in the oil through hole 212, the opening and closing 213a having a flange on one side, a spring 213b for pushing the opener 213a to one side, and the spring ( It consists of a snap ring 213c for fixing 213b and an actuating piece 213d for actuating one end of the switch 213a to operate the switch 213a.

One side of the body 211 of the piston 210 forms an operating piece groove 215 for communicating with the oil through hole 212 to operate and support the operating piece 213d.

The operation piece 213d installed in the operation piece groove 214 has a switch 213a receiving elasticity of the spring 213b of the oil valve 213 on one side thereof, and the piston 210 of the piston 210 on the other side thereof. It is operated by the encounter with the fixing member 472 of the connecting body 400 in contact with the end.

7 is a front view (a) and a side view (b) of the operating piece (213d), the operating piece (213d) is preferably formed in a flat U-shaped, the c-shaped operating piece (213d) is installed and The operating piece groove 215 to be operated is configured to have a free space through which oil can pass through a space in which the operating piece 213d is installed and operated.

Thus, when the vacuum cylinder 100 is not in operation, the oil cylinder hole 212 is opened by pushing the switch 213a by being pushed by the washer 472, which is a fixed member fixed to the connecting body, which will be described later. The oil flowing in from the piston 210 is made to communicate with the opera cylinder side through the inner hole (212).

Reference numeral 213e denotes an opening and closing packing, and 216 is a spring for guiding operation of the operating piece 213d.

The discharge side of the force cylinder is preferably provided with a buffer device 221 of the normal hydraulic operation to discharge is proceeded quickly and the return is slow.

The air valve 300 is coupled to the air valve support groove 430 of the connecting body 400, the cylinder 310 for operating by the hydraulic pressure flowing from the oil through hole 410 of the connecting body 400 )Wow,

It is provided between the piston 311 of the cylinder 310 and the operator 330 to be described later, is operated by the operation of the cylinder piston 311 to move the operator 330 to be described later, the recess groove 321 And a connector 320 for connecting a vacuum flow between the air valve 300 and the vacuum cylinder 100 by forming a plurality of vacuum through holes 322,

It is interlocked by the operation of the piston 311 of the cylinder, and provided with a flange 331 at both ends to open and close the air inlet, one side flange 331a opens and closes the inlet groove 321 of the connector 320,

The other side flange 331b is configured to open and close the air inlet hole 341 of the operator support 340 to be described later,

An operator 330 is formed to form a gap (I) of the predetermined interval and the connector 320 when the air is shut off of the valve 300 to form a vacuum passage of the vacuum cylinder 100,

As shown in FIG. 8, the one side flange 331b of the operator 330 is fixed to the valve housing 370 and an air through hole 341 is formed to be opened and closed by the operation of the operator 330. The same operator support 340,

A spring 351 for holding the operator support 340 and the connector side flange 331a of the operator 330, and a spring for supporting the operator support 340 and the connector 320. 352),

A plurality of packing members 360 for airtightness, the connector 320, the operator 330, the operator support 340, a plurality of springs 351, 352 and the packing member 360 The air inlet 372 is accommodated in the inner space and connected to the vacuum cylinder 100 at the middle of the air inlet 371 and the operator 330 on the air inlet opening and closing side of the operator 330. And a housing 370 coupled to the connection body 400 and having a plurality of vacuum through holes 373 formed therein.

The housing is preferably configured to be separated by screwing the lower housing (370a) and the upper housing (370b). Reference numeral 375 denotes an air filter.

The connecting body 400 is introduced from the master cylinder, and forms an oil through hole 450 which penetrates down the piston 210 of the force cylinder 200,

The piston rod 110 and the force cylinder 200 of the vacuum cylinder 100 to form a support cylinder 440 is assembled to the coupling cylinder, the force cylinder support groove 440 is a packing for maintaining a plurality of airtight Member 460,

As a fixing member 470 for pressing and fixing the packing member 460, a washer as shown in FIG. 9 in which a sleeve 471 and a plurality of oil through holes 472a are formed at the periphery of the sleeve 471 are pressed. 472 and a snap ring 473 for fixing the washer 472,

Form an air valve support groove 430 for assembling the air valve 300,

The vacuum cylinder 420 for the vacuum passage between the vacuum cylinder 100 and the air valve 300, and the air cock 480 for extracting air from the vacuum cylinder 420 is provided.

The working state of the present invention having the above configuration will be described with reference to FIGS. 1 to 9.

Figure 6 is an enlarged view of the coupling portion of the piston rod and the piston of the force cylinder of the vacuum cylinder which is the main part of the present invention, b is a side view and c is a working state diagram.

When the vehicle is started, the interior of the vacuum cylinder connected to the engine becomes a vacuum state.

The piston rod 110 of the vacuum cylinder 100 receives elasticity that is pulled toward the ram 111 by the spring 120, and thus the force cylinder 200 coupled to the piston rod 110 by a pin 101. Piston 210 of the) is pulled to the side of the vacuum cylinder 100, one end is caught by the washer 472, which is a fixing member of the connecting body 400, the pulling is stopped.

At this time, the operation piece 213d of the oil valve 213 is caught by the washer 472 and pushed into the operation piece groove 215 having the operation space of the operation piece 213d, and the operation piece 213d. The opening and closing of the switch (213a) is pushed to open the oil through hole 212 eventually, the oil introduced from the master cylinder flows through the oil cylinder through the oil through hole 450 of the connecting body 200 In addition, the hydraulic cylinder passes through the oil through hole 212 inside the piston 200 to communicate with the opera cylinder.

In other words, when the clutch pedal is not operated, the oil passage between the master cylinder and the opera cylinder is in a state in which oil is in communication without any blockage as if there is no auxiliary device 1 of the clutch of the present invention.

This means that there is no problem in the operation between the master cylinder and the opera cylinder even if a failure of an air valve or the like occurs in the auxiliary device 1 of the clutch.

When the clutch is operated by stepping on the clutch pedal for gear shifting, hydraulic pressure flows from the master cylinder through the oil through hole 450 of the connecting body 400 under the piston 210 of the force cylinder 200.

Oil introduced under the piston 210 of the force cylinder 200 is applied with hydraulic pressure to the piston 210 of the force cylinder 200, and is introduced into the oil through-hole 410 formed in the connecting body 400, The piston 311 of the cylinder 310 of the valve 300 is pushed out.

The piston 311 of the oil valve 300 is pushed to push the connector 320, the pushed connector 320 is in close contact with the operator 330 one side flange 331a, the operator one flange 331a ) And the vacuum passage between the vacuum cylinder 100.

The connector 320 continuously pushes the operator 330 while being pushed by the piston 311, thereby allowing the air through hole 341 of the operator support 340 that is blocked by the other flange 331b of the operator. To open and allow air to flow through the air inlet 371.

The introduced air is introduced into the vacuum cylinder 100 through the air through hole 372 of the air valve housing 370, and sudden air inflation and expansion occurs at the air inlet side of the vacuum cylinder 100 in a vacuum state. Piston 110 operation is to occur.

By the sudden piston operation of the vacuum cylinder 100, the piston 210 of the force cylinder 200 coupled to the piston rod 110 and the pin 101 pushes the hydraulic pressure in the force cylinder 200 to the opera cylinder with a strong force. As a result, the clutch plate holds the flywheel of the engine.

That is, even if a small force is applied to the clutch pedal, this is converted into a strong force of the vacuum cylinder 100 through the air valve 300, and amplified by several times the force to operate the piston 210 of the force cylinder.

When the gear shift ends and you step on the clutch pedal,

As the oil under the piston 210 of the force cylinder 200 is returned to the master cylinder, the cylinder piston 311 of the air valve 300 is retracted, and at the same time, the actuator bearing 340 and the connector side flange of the operator 331a The operator 330 is returned by the force of the spring 351 while holding the) to block the air inflow, and by the force of the spring 352 to support the operator support 340 and the connector 320. The connector 320 is returned, and the vacuum passage passing between the flange 331a and the connector 320 of the operator opened again passes through the recess groove 321 and the vacuum hole 322 of the connector 320, and the valve housing Through the vacuum through hole 373 and the vacuum through hole 420 of the connecting body 400 is formed through the vacuum cylinder 100, the vacuum state of the vacuum cylinder 100 is returned, and thus the spring 120 ) And the piston ram 111 and the piston rod 110 are also returned, so that the piston 210 of the The oil cylinder hole 212 of the force cylinder is opened again.

As described in detail above, the auxiliary device of the automobile hydraulic clutch according to the present invention makes it possible to lighten the clutch operation with a small force so that the vehicle having the clutch can be easily used.

In addition, the present invention, since the hydraulic pressure is always in a state when the clutch operation is not performed between the master cylinder and the opera cylinder, there is no obstacle to the clutch operation even if a failure of the air valve, etc., as if the device is not installed As it is the same case and does not matter at all in the driving of the car,

In particular, it is a technology having a very advantageous advantage to safely and easily use a vehicle having a clutch that significantly reduces the cost of purchase, operation and management.

Claims (6)

In a hydraulic clutch device in which hydraulic pressure generated by operating a clutch pedal of a vehicle acts on a piston in a master cylinder and an opera cylinder to control a clutch, the clutch auxiliary device provided between the master cylinder and the opera cylinder of the vehicle, Is connected to the vacuum connection pipe 500 connected from the engine, and has a spring 120 for always acting on the piston rod 110, a predetermined elasticity, for amplifying the operation of the force cylinder 200 to be described later A vacuum cylinder 100; The hydraulic pressure flowing from the master cylinder, the piston 210 is coupled to the piston rod 110 of the piston cylinder 110 of the vacuum cylinder 100 is operated by the operation of the piston 110 of the vacuum cylinder 100, the piston 210 is provided with a packing 214 on the outer periphery of the body 211, and forming an oil through hole 212 therein, forming an oil valve 213 for opening the oil through hole 212, When the vacuum cylinder 100 is not operated, the oil valve 213 for opening and closing the oil through hole is opened, the hydraulic cylinder 200 is configured to communicate with the oil flowing from the master cylinder to the opera cylinder side; An air valve 300 for operating the vacuum cylinder 100 that is operated by hydraulic pressure transmitted through the oil through hole 410 of the connecting body 400 to be described later from the tension cylinder 200; It is integrally formed in the vacuum cylinder outer cylinder 130, and supports and accommodates the force cylinder 200 and the air valve 300 member, the piston rod 110 and the force cylinder of the vacuum cylinder (100) 200 is connected, the vacuum cylinder 100 and the air valve 300 is connected, the oil cylinder hole 410 and the vacuum cylinder for interlocking the force cylinder 200 and the air valve 300, the vacuum cylinder ( An auxiliary device of a vehicle hydraulic clutch, characterized in that it comprises a connecting body 400 is formed for the vacuum through-hole 420. The method of claim 1, The vacuum cylinder 100, the center of which is fixed to the ram 111 of the piston, a rubber packing 140 of the peripheral portion fixed to the cylinder outer cylinder 130, A piston rod 110 coupled to the piston 210 and the pin 101 of the force cylinder 200; Spring 120 for always supporting the piston rod 110 with a predetermined elasticity, Auxiliary device for a vehicle hydraulic clutch, characterized in that the outer cylinder 130 is configured with a vacuum connection pipe connection hole 131 for connecting to the engine on one side, and the air valve connecting hole 133 on the other side. The method of claim 1, The force cylinder 200 is formed to communicate with the oil through hole 212, the operating piece groove 215 to be operated, the operation piece 213d to be described later to one side of the body 211 of the piston 210, The oil valve 213 of the piston 210 is operated in the oil through hole 212 and has an opening and closing 213a having a flange on one side, and a spring 213b for pushing the opener 213a to one side. And a snap ring 213c for fixing the spring 213b and an actuating piece 213d for actuating one end of the switch 213a to operate the switch 213a, The actuating piece 213d has an opening / closing member 213a receiving elasticity of the spring 213b of the oil valve 213 on one side thereof, and a connecting body 400 abutting the end of the piston 210 on the other side thereof. Auxiliary device for an automobile hydraulic clutch, characterized in that configured to be operated by the encounter with the fixing member of the. The method of claim 1, The air valve 300 is coupled to the air valve support groove 430 of the connecting body 400, the cylinder 310 for operating by the hydraulic pressure flowing from the oil through hole 410 of the connecting body 400 )Wow, It is provided between the piston 311 of the cylinder 310 and the operator 330 to be described later, is operated by the operation of the cylinder piston 311 to move the operator 330 to be described later, the recess groove 321 And a connector 320 for connecting a vacuum flow between the air valve 300 and the vacuum cylinder 100 by forming a plurality of vacuum through holes 322, It is interlocked by the operation of the piston 311 of the cylinder, and provided with a flange 331 at both ends to open and close the air inlet, one side flange 331a opens and closes the inlet groove 321 of the connector 320, The other side flange 331b is configured to open and close the air inlet hole 341 of the operator support 340 to be described later, An operator 330 is formed to form a gap (I) of the predetermined interval and the connector 320 when the air is shut off of the valve 300 to form a vacuum passage of the vacuum cylinder 100, An operator support 340 which receives one side flange 331b of the operator 330 and is fixed to the valve housing 370 and forms an air through hole 341 for opening and closing by operation of the operator 330. and, A spring 351 for holding the operator support 340 and the connector side flange 331a of the operator 330, and a spring for supporting the operator support 340 and the connector 320. 352), A plurality of packing members 360 for airtightness, the connector 320, the operator 330, the operator support 340, a plurality of springs 351, 352 and the packing member 360 The air inlet 372 is accommodated in the inner space and connected to the vacuum cylinder 100 at the middle of the air inlet 371 and the operator 330 on the air inlet opening and closing side of the operator 330. And, fixed to the connection body 400, the auxiliary device of the vehicle hydraulic clutch, characterized in that it comprises a plurality of vacuum through hole (373) housing (370). The method of claim 1, The connecting body 400 is introduced from the master cylinder, and forms an oil through hole 450 that penetrates down the piston 210 of the force cylinder 200, The piston rod 110 and the force cylinder 200 of the vacuum cylinder 100 to form a force cylinder support groove 440 is assembled and coupled, the force cylinder support groove 440 a plurality of packing for airtight Member 460, A fixing member 470 for pressing and fixing the packing member 460, a sleeve 471, a washer 472 which presses the sleeve 471 and a plurality of oil through holes 472a are formed at the periphery; Giving a snap ring 473 for fixing the washer 472, To form an air valve support groove 430 for assembling the air valve 300, A vehicle comprising a vacuum through hole 420 for the vacuum passage between the vacuum cylinder 100 and the air valve 300, and an air cock 480 for extracting air from the vacuum through hole 420 is provided. Auxiliary device of hydraulic clutch. The method according to claim 1 or 3, The actuating piece 213d of the piston oil valve 213 of the force cylinder 200 is formed in a flat U-shape, and the actuating piece groove 215 on which the U-shaped actuating piece 213d is installed and operated is the actuating piece ( 213d) is an auxiliary device of a hydraulic clutch for automobiles, characterized in that configured to have a free space for oil to pass through the space to be installed and operated.