KR200327122Y1 - Automatic opening and closing device for sliding door in vehicle - Google Patents

Abstract

The present invention relates to a sliding door automatic opening and closing device for a vehicle. The opening and closing device of the present invention is an opening and closing device for automatically opening and closing the sliding door for a vehicle, and is fixed to the vehicle body, the case having a slot; A carriage installed in the case so as to be linearly reciprocated, the carriage having a working cylinder connected to the sliding door through a slot; A driving wheel rotatably installed at one side of the case and having a first winding groove and a second winding groove formed around the case; A driven wheel rotatably installed on the other side of the case; A first wire having one end wound around the first winding groove of the driving wheel and the other end fixed to one side of the carriage via the driven wheel; A second wire having one end wound on the second winding groove of the driving wheel in a direction opposite to the winding direction of the first wire, and the other end fixed on the other side of the carriage; And a driving motor for rotating the driving wheel forward and reverse so that the driving wheel winds the first wire or the second wire to linearly reciprocate the carriage. According to the present invention, since the structure is very simple, the production cost is low, and the installation cost is very low. In addition, by blocking the inflow of foreign matter into the case at the source, the failure rate due to the inflow of foreign matter is reduced, as well as has an effect of extending the life.

Description

AUTOMATIC OPENING AND CLOSING DEVICE FOR SLIDING DOOR IN VEHICLE}

The present invention relates to a sliding door automatic opening and closing device for a vehicle, and more particularly, a sliding door automatic opening and closing device for a vehicle having a simple structure and low installation cost.

In general, small vans are equipped with sliding sliding doors that open the side doors rearward. Sliding doors enable passengers to get on and off even in narrow spaces on the side of the vehicle. It also allows a large number of passengers to get on and off at once.

On the other hand, it is pointed out that such a sliding door is difficult to open and close. That is, the sliding door is composed of a relatively heavy weight of itself. Therefore, when pushing a heavy sliding door backward or pull forward, there is a disadvantage that a lot of force is required. In particular, female passengers or child passengers have more difficulty opening and closing heavy sliding doors.

In view of this, recently, a sliding door automatic opening and closing device for automatically opening and closing the sliding door has been developed. As one example, Korean Utility Model Registration No. 230349 proposes a sliding door automatic opening and closing device for a vehicle. This technology consists of a drive motor, a guide chain which moves endlessly by the drive motor, and a transfer assembly which opens and closes the sliding door while reciprocating by the guide chain.

However, the automatic sliding door opening and closing device of such a configuration has the advantage of automatically opening and closing the sliding door, but the structure is complicated, there is a lot of manufacturing costs, there is a problem that frequent failures. In particular, as the failure frequently occurs, repair and maintenance costs are high and the lifespan is short.

Accordingly, the present invention has been made to solve the above problems, the object of the present invention is to provide a sliding door automatic opening and closing device for a vehicle having a simple structure, low production cost, and a low failure rate to extend the life.

In order to achieve the above object, the present invention provides an opening and closing device for automatically opening and closing a sliding door for a vehicle, the case being fixed to the vehicle body and having a slot; A carriage installed in the case so as to be linearly reciprocated, the carriage having a working cylinder connected to the sliding door through a slot; A driving wheel rotatably installed at one side of the case and having a first winding groove and a second winding groove formed around the case; A driven wheel rotatably installed on the other side of the case; A first wire having one end wound around the first winding groove of the driving wheel and the other end fixed to one side of the carriage via the driven wheel; A second wire having one end wound on the second winding groove of the driving wheel in a direction opposite to the winding direction of the first wire, and the other end fixed on the other side of the carriage; And a driving motor for rotating the driving wheel forward and reverse so that the driving wheel winds the first wire or the second wire to linearly reciprocate the carriage.

1 is a perspective view illustrating a state in which a sliding door automatic opening and closing device according to the present invention is installed in a vehicle;

Figure 2 is a perspective view showing in detail the configuration of the automatic sliding door opening and closing device according to the present invention,

3 is a cross-sectional view taken along line III-III of FIG. 2;

4 is a cross-sectional view taken along the line IV-IV of FIG. 3;

5 is a cross-sectional view taken along the line VV of FIG. 4.

♣ Explanation of symbols for the main parts of the drawing ♣

3: body 7: sliding door

10: case 12: operating chamber

14: slot 20: carriage

24: working cylinder 30: drive wheel

30a: first winding groove 30b: second winding groove

32: driven wheel 34: first wire

35: second wire 36: drive motor

40: first limit switch 42: second limit switch

44: controller 50: tension adjusting pin

52: nut 54: spring

60: blocking belt 62: guide roller

64: connecting member

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the vehicle sliding door automatic opening and closing device according to the present invention.

First, as shown in FIG. 1, the sliding door automatic opening and closing device 1 of the present invention is installed in a seal portion 5 of the vehicle body 3, and automatically opens and closes the sliding door 7 of the vehicle.

Looking at the automatic opening and closing device of the present invention in detail with reference to Figures 2 to 5, the automatic opening and closing device is provided with a case 10 as shown in FIG. The case 10 has an operating chamber 12 formed therein, and one side of the case 10 has a slot 14 formed along the longitudinal direction.

And the guide rail 15 is installed along the longitudinal direction in the operation chamber 12 of the case 10, the carriage 20 is installed in the guide rail 15 so as to linearly reciprocate. Here, the rail groove (15a) is formed in the bottom surface of the guide rail 15 in the longitudinal direction, the carriage 20 is provided with a guide roller 22 which can be rolled along the rail groove (15a). The guide roller 22 helps the smooth movement of the carriage 20.

On the other hand, the carriage 20 is a box body with one side open, and has an operation cylinder 24 extending to one side. As shown in FIG. 3, the operation cylinder 24 is mounted to the cylinder part 24a fixed to the carriage 20 and is removably installed in the cylinder part 24a and passes through the slot 14 of the case 10. It consists of a rod part 24b fixed to the sliding door 7. Here, the rod part 24b absorbs the impact which arises at the time of opening and closing of the sliding door 7, while being shown in the cylinder part 24a.

The carriage 20 of this configuration pushes the sliding door 7 to the rear of the vehicle body 3 or to the front of the vehicle body 3 while linearly reciprocating along the guide rail 15.

Again, referring to Figure 2, the automatic opening and closing device of the present invention is provided with a movement means for reciprocating the carriage 20. The movement means is rotatably installed at one side of the operation chamber 12 and has a driving wheel 30 having a first winding groove 30a and a second winding groove 30b formed around the other side of the operation chamber 12. A driven wheel 32 rotatably installed at one end thereof is wound around and fixed to the first winding groove 30a of the driving wheel 30, and the other end is connected to one side of the carriage 20 via the driven wheel 32. The first wire 34 is fixed, one end is wound around the second winding groove (30b) of the drive wheel 30 is fixed and the other end is fixed to the other side of the carriage 20 and the second wire 35 and the drive It is composed of a drive motor 36 for driving the wheel 30 in the forward or reverse direction. In particular, the second wire 35 is wound in a direction opposite to the first wire 34.

As shown in FIG. 4, when the driving wheel 30 is rotated in the forward direction (“A”) with the driving motor 36, the driving wheel 30 is wound around the first wire 34. The first wire 34 is pulled, and the pulled first wire 34 pulls the carriage 20 fixed to the end to one side while rotating the driven wheel 32. As a result, the carriage 20 opens the sliding door 7 while moving in one direction of the case 10.

When the driving wheel 30 is rotated in the reverse direction (“B”) with the driving motor 36, the driving wheel 30 pulls the second wire 35 while winding the second wire 35. The pulled second wire 35 pulls the carriage 20 fixed to the end to the other side. As a result, the carriage 20 closes the sliding door 7 while moving in the other direction of the case 10. Here, the drive motor 36 is driven in the forward or reverse direction by an operation switch (not shown) installed in the driver's seat or the vehicle interior.

On the other hand, the movement means automatically operates the drive motor 36 when the sliding door 7 is fully opened (hereinafter referred to as "open position") or completely closed (hereinafter referred to as "close position"). It is provided with a drive motor control means for stopping.

As shown in FIG. 4, the drive motor control means includes a first limit switch 40 which is operated in contact with the carriage 20 which moves the sliding door 7 to an open position (left side in the drawing), and a sliding door ( 7) is driven in accordance with the operation signals of the second limit switch 42 and the first and second limit switches 40 and 42, which are operated in contact with the carriage 20 which is moved to the closed position (right in the drawing). It consists of a controller 44 which stops the operation of the motor 36.

And the movement means further includes a tension holding means for maintaining a constant tension of the first wire 34 and the second wire 35 as shown in FIG. The tension holding means includes tension adjusting pins 50 that are movably installed on the carriage 20 in a state in which the ends of the first wire 34 and the second wire 35 are supported, respectively, and the tension adjusting pin 50. Nut 52 is screwed to the end of, and one end is supported by the inner wall of the carriage 20 and the other end is composed of springs (54) supported by the nut (52). In particular, the springs 54 are configured to elastically support the tension adjusting pin 50 into the carriage 20 to pull the first wire 34 and the second wire 35 into the carriage 20.

The tension adjusting means keeps the tension of the first wire 34 and the second wire 35 constant by pulling the first wire 34 and the second wire 35 into the carriage 20. . On the other hand, when the tension of the first wire 34 and the second wire 35 is to be adjusted, the elastic force of the spring 54 may be adjusted by rotating the nut 52.

Again, referring to Figure 2, the automatic opening and closing device of the present invention is provided with a foreign matter inflow prevention means for preventing foreign matters such as dust, moisture, etc. into the slot 14 of the case 10.

Foreign material inflow prevention means is a closed belt 60 of the closed curve disposed along the inner wall of the operating chamber 12 to block the slot 14, and the blocking belt 60 so that the blocking belt 60 can circulate. A plurality of guide rollers 62 for guiding, and the connecting member 64 for connecting the operation belt 24 of the blocking belt 60 and the carriage 20 so that the blocking belt 60 and the carriage 20 can be interlocked. It is composed of In particular, the connecting member 64 is provided with a through hole 64a through which the operation cylinder 24 of the carriage 20 can penetrate. The connecting member 64 connects both ends of the blocking belt 60 to form a closed curve. .

The foreign matter inflow prevention means prevents foreign substances such as dust, moisture, etc. from being introduced into the operation chamber 12 of the case 10 by blocking the slot 14 of the case 10 as shown in FIG. 5. . In particular, the blocking belt 60 increases the blocking rate of the slot 14 regardless of the movement of the carriage 20 by blocking the slot 14 while circulating according to the movement of the carriage 20.

Next, the operation of the present invention will be described with reference to FIGS. 1 and 4.

First, looking at the case to open the sliding door 7, the operation switch (not shown) is operated. Then, as shown in FIG. 4, the drive motor 36 is driven in the forward direction, and the drive motor 36 driven in the forward direction rotates the drive wheel 30 in the forward direction (“A”), and in the forward direction (“A”. The driving wheel 30 rotated by "" pulls the first wire 34 while winding the first wire 34. The pulled first wire 34 pulls the carriage 20 fixed to the end to one side, and the pulled carriage 20 moves the sliding door 7 to one side. As a result, the sliding door 7 automatically opens while moving to the rear of the vehicle body 3 as shown in FIG. 1.

Meanwhile, as shown in FIG. 4, the carriage 20 which opens the sliding door 7 operates the first limit switch 40, and the operated first limit switch 40 transmits a switching signal to the controller 44. ). In addition, the controller 44 in which the signal is input stops the operation of the driving motor 36. In this state, the sliding door 7 remains open.

Next, looking at the case to close the sliding door 7, the operation switch (not shown) is operated. Then, the drive motor 36 is driven in the reverse direction, the drive motor 36 driven in the reverse direction rotates the drive wheel 30 in the reverse direction ("B"), drive wheel rotated in the reverse direction ("B") 30 pulls the second wire 35 while winding the second wire 35. The pulled second wire 35 pulls the carriage 20 fixed to the end to the other side, and the pulled carriage 20 moves the sliding door 7 to the other side. As a result, the sliding door 7 is automatically closed while moving forward of the vehicle body 3 as shown in FIG. 1.

Meanwhile, as shown in FIG. 4, the carriage 20 which moves the sliding door 7 to the closed position operates the second limit switch 42, and the operated second limit switch 42 provides a switching signal. Input to the controller 44. In addition, the controller 44 in which the signal is input stops the operation of the driving motor 36. In this state, the sliding door 7 remains closed.

In the above described a preferred embodiment of the present invention by way of example, the scope of the present invention is not limited only to this specific embodiment, it can be appropriately changed within the scope described in the utility model registration claims.

As described above, the vehicle sliding door automatic opening and closing device according to the present invention is very simple in structure, the production cost is low, and the installation cost is very low. In addition, by blocking the inflow of foreign matter into the case at the source, the failure rate due to the inflow of foreign matter is reduced, as well as has an effect of extending the life.

Claims (3)

Opening and closing device for automatically opening and closing the vehicle sliding door, A case fixed to the vehicle body and having a slot; A carriage installed in the case so as to be linearly reciprocated, the carriage having a working cylinder connected to the sliding door through a slot; A driving wheel rotatably installed at one side of the case and having a first winding groove and a second winding groove formed around the case; A driven wheel rotatably installed on the other side of the case; A first wire having one end wound around the first winding groove of the driving wheel and the other end fixed to one side of the carriage via the driven wheel; A second wire having one end wound on the second winding groove of the driving wheel in a direction opposite to the winding direction of the first wire, and the other end fixed on the other side of the carriage; And a driving motor for rotating the driving wheel forward and reverse so that the driving wheel winds the first wire or winds the second wire to linearly reciprocate the carriage. . The method of claim 1, further comprising tension maintaining means for maintaining a constant tension of the first wire and the second wire, The tension retaining means includes tension adjusting pins movably assembled to the carriage while fixing end portions of the first wire and the second wire, respectively, and a direction in which each of the tension adjusting pins is pulled in the first wire and the second wire. Sliding door automatic opening and closing device for a vehicle, characterized in that the spring to the elastic pressure. According to claim 1 or 2, further comprising a foreign matter inflow prevention means for preventing foreign matters from entering the slot of the case, The foreign matter prevention means is a blocking belt of the closed curve disposed in the case to block the slot, a plurality of guide rollers for guiding the blocking belt so that the blocking belt can be circulated, the blocking belt and the carriage interlock Sliding door automatic opening and closing device for a vehicle, characterized in that consisting of a connecting member for connecting the operation rod of the blocking belt and the carriage.