KR200327133Y1 - Opening and closing apparatus for sliding door - Google Patents

Abstract

The present invention relates to an opening and closing device of the sliding door, and is installed in the front of the frame spaced apart by the stroke of the sliding door, the drive sprocket and the driven sprocket interconnected by a drive chain; A drive motor having a motor shaft to transmit a driving force to one side; A separating plate provided with a sub-hinge receiving portion to correspond to the main hinge receiving portion provided at the rear of the frame, wherein a hinge pin is inserted into and coupled to each of the hinge receiving portions, and a shaft hole penetrates through a shaft in a substantially center of the right plate; A fixing piece fixedly coupled to the motor shaft penetrated in front of the shaft hole of the separating plate; A rotating piece that is detachably coupled to the fixing piece, and a rotating shaft protrudes from the center to be coupled to the driving sprocket; A fixing member for fixing the rotating piece to the driving sprocket; A cable that is disposed through the through hole formed in the seat plate of the separator plate and rotates the separator plate at a predetermined angle with respect to the hinge pin to allow the separator plate to detach the rotating piece and the fixing piece; And a conversion switch installed inside the vehicle body and connected to the cable to manipulate the cable. According to the present invention configured as described above, since the minimum process parts are applied when the sliding door is manually opened and closed, the overall assembly cost of the opening / closing device of the sliding door can be reduced and the failure rate can be minimized due to the simplification of the process parts. Will be.

Description

Opening and closing device of sliding door {OPENING AND CLOSING APPARATUS FOR SLIDING DOOR}

The present invention relates to an opening and closing device of a sliding door that opens and closes by sliding a door of a vehicle.

In general, sliding doors applied to vans are installed to be movable on guide rails fixed to the vehicle body so as to correspond to the side and the bottom of the door, and the passengers pull the handles provided on one side of the door to move the sliding doors in the lateral direction. The sliding door is opened and closed on the guide rail by pressing with.

However, the conventional sliding door was inconvenient to apply an excessive force when opening and closing the door, and the disadvantage is that the hand or body part is injured by accidentally caught in the sliding door.

In order to solve this problem, the automatic opening and closing device of a sliding door for a van, which is disclosed in Korean Patent Application No. 1996-080596, uses a tension of a belt driven by a motor with a slight external force to automatically open and close the sliding door. It can be opened and closed by.

In other words, the motor is configured to control the motor to rotate forward and backward by the first and second limit switches mounted at both ends of the stroke moving when the door is opened and closed.

Therefore, one side of the door in contact with the limit switch to control the motor to slow down or stop the rotational speed of the low speed so that the passenger is stuck in the door as described above.

However, the primary use for which vans are generally used is for family recreational vehicles, especially for kindergarten school vehicles for students coming to and from school.

In view of this purpose, the main passengers of the vans are young children and families of all ages, and in particular, stability should be emphasized, whereas the automatic opening and closing device of the sliding doors for vans must push the door by applying a predetermined external force. The fact that the motor, which is the driving force for controlling the door, continues to rotate even if a part of the body gets caught in the gap of the door, which is the main characteristic of the van described above, so the driver should always carefully watch the riding and getting off of the vehicle. Despite this problem, the driver's judgment is not reflected at all, and even if a part of the body is caught in the gap of the door, a fatal problem of not immediately controlling the motor driving the door is found.

This problem can be solved by Utility Model Registration No. 0230349 filed by the same applicant of the present invention, briefly described the contents of the registration application as follows.

As shown in FIG. 1, the registration application includes a driving sprocket 30 that rotates in association with the rotation of the driving motor 20 on the protruding motor shaft 21 of the driving motor 20.

In addition, when the drive chain 30 is wound around the drive sprocket 30 and the drive sprocket 30 is rotated, the rotational force causes the drive chain 40 to move indefinitely.

That is, as shown in Figures 2 to 3, the drive motor 20 is mounted on one side of the frame 10, the rotating end (not shown) for the drive motor 20 can be rotated is It is formed to protrude integrally to the drive motor 20, one end of which is inserted into the arc hole (not shown) formed on one surface of the frame 10 is formed to rotate by the distance of the arc hole.

Therefore, when the driving motor 20 is rotated downward based on the lower end of the arc-shaped hole, the driving sprocket 30 integrally installed with the driving motor 20 is wound around the driving chain 40. On the contrary, when moving upward by moving relative to the upper end, the driving chain 40 is separated from the driving chain 40.

This operation is performed by the operation of the position conversion motor 50 mounted on the back of the frame 10, the position conversion motor 50 is controlled to move by a desired angle by the operator's will after the arc-shaped hole By operating the other end of the rotary stage built in the to be operated by the distance of the arc-shaped hole.

On the other hand, the opening and closing means 60 for opening and closing the sliding door by controlling the ground terminals of the limit switches 71 and 72 provided at a predetermined distance from the front of the frame 10 is moved along the drive chain 40.

The opening and closing means 60 has an operating cylinder 62 protrudingly installed at the center of the housing 61, and configured to fasten the sliding door D to the end of the cylinder rod 63 of the operating cylinder 62.

Therefore, the shock generated during opening and closing of the sliding door (D) is directly transmitted to the operation cylinder 62, in order to attenuate such shock, the shock absorbing spring 64 inducing elastic repulsion force on both sides of the lower end of the operation cylinder 62. Is provided, spring guides 65 are provided on both sides of the shock absorbing spring 64 in order to prevent the shock absorbing spring 64 from being separated from the housing 61 by the shock generated during opening and closing.

Therefore, when the sliding door is closed at an inclined place, the sliding door is completely closed by the elastic force of the shock absorbing spring, and even when the occupant's hand is caught, a repulsive force is induced at all times so that the hand can be removed without a large injury. will be.

However, in the registration application, the driving motor and the position conversion motor are respectively disposed in front and rear of the frame, and a plurality of gears must be arranged, thereby increasing the number of assembly operations and occupying a lot of installation space.

In addition, the motor is converted by using a motor as a means for automatically opening and closing the door automatically, and there is a possibility that a residual failure may occur in the control circuit and the like, and thus there is a problem in that the switching is not easy when an emergency occurs.

In addition, since the drive motor is exposed to the front of the frame, there is a fear that an error occurs in operation due to the infiltration of the drive motor during rain or the like.

The present invention is to solve this problem, it is an object of the present invention to provide a sliding door opening and closing device that can significantly reduce the failure rate by minimizing the number of assembly required for automatic and manual conversion for the opening and closing of the door.

Another object of the present invention is to provide an opening / closing device of a sliding door to prevent an operation error from occurring by sealing the drive motor to prevent invasion even in rainy weather.

1 is a cross-sectional view showing a sliding door opening and closing device according to the prior art.

Figure 2 is a side view showing a sliding door opening and closing device according to the prior art.

Figure 3a and Figure 3b is a cross-sectional view showing the operation of the sliding door opening and closing device according to the prior art, respectively.

Figure 4 is a perspective view showing a sliding door opening and closing device according to the present invention.

5 is an exploded perspective view showing a sliding door opening and closing device according to the present invention.

Figure 6a and Figure 6b is a plan view showing the operation of the sliding door opening and closing device according to the present invention, respectively.

** Explanation of symbols for main parts of drawings **

100; Frame 120; Rear frame

121; First hinge receiving portion 200; Motor assembly

210; Drive motor 211; Motor shaft

212; Coupler 270; Separator

271; Second hinge receiving portion 272; Seat

273; Right plate 273a; Axes

273b; Coupling hole 220; Fixed piece

221; Fixed protrusion 230; Meeting

231; Fixing groove 232; Axis of rotation

240; Bearing 250; Fixing Nut

310; Drive sprocket 320; Driven sprocket

330; Drive Chain

The present invention for achieving the above object is installed in the front of the frame spaced apart by the distance of the sliding door, the drive sprocket and the driven sprocket interconnected by the drive chain; A drive motor having a motor shaft to transmit a driving force to one side; A separating plate provided with a sub-hinge receiving portion to correspond to the main hinge receiving portion provided at the rear of the frame, wherein a hinge pin is inserted into and coupled to each of the hinge receiving portions, and a shaft hole penetrates through a shaft in a substantially center of the right plate; A fixing piece fixedly coupled to the motor shaft penetrated in front of the shaft hole of the separating plate; A rotating piece that is detachably coupled to the fixing piece, and a rotating shaft protrudes from the center to be coupled to the driving sprocket; A fixing member for fixing the rotating piece to the driving sprocket; A cable that is disposed through the through hole formed in the seat plate of the separator plate and rotates the separator plate at a predetermined angle with respect to the hinge pin to allow the separator plate to detach the rotating piece and the fixing piece; And a conversion switch installed inside the vehicle body and connected to the cable to manipulate the cable.

Hereinafter, the sliding door automatic opening and closing device according to the present invention will be described according to the embodiment shown in the accompanying drawings.

First, Figure 4 is a perspective view showing the opening and closing device of the sliding door according to the present invention, the opening and closing device according to the present invention is installed on the bottom surface of the van 100 is equipped with various mechanisms constituting the sliding door.

The frame 100 is provided on the door side of the vehicle in a length proportional to the stroke distance of the sliding door of the van, the lower frame 110 and the rear frame 120 are bent at a right angle to each other, In the center of the lower frame 110, the diaphragm is coupled in the horizontal direction. (The front frame and the upper frame are also bent to correspond to the rear frame and the lower frame, but are not shown in the drawing.)

The rear surface of the rear frame 120 is provided with a motor assembly (shown in Figure 5) that provides a driving force when the automatic opening and closing of the sliding door, the motor assembly is sealed by a cover 290.

A driving sprocket 310 and a driven sprocket 320 are installed on the front surface of the rear frame 120 at predetermined intervals, and the driving sprocket 310 is coupled to a rotating shaft of the motor assembly to drive a driving force. To be provided. That is, the driving sprocket 310 and the driven sprocket 320 are mounted to the front of the frame 100 spaced apart from each other by a stroke distance for opening and closing the sliding door.

The driving sprocket 310 and the driven sprocket 320 are provided with a driving chain 330 which rotates by driving the driving force generated from the motor assembly while performing the endless orbiting movement.

The drive chain 330 is focused on the feature to obtain a constant speed ratio without the sliding phenomenon commonly occurring in the frictional force transmission by the belt and rope, and transmits the power to open and close the sliding door due to the feature.

In addition, the impact load can be absorbed to some extent by the elasticity, etc. of the characteristics of the chain is very useful for absorbing the shock generated when opening and closing the sliding door.

Therefore, the drive chain 330 is installed in a structure wound around the sprockets 310 and 320 of the spaced apart, and when the rotational force is transmitted to the drive sprocket 310, the drive chain 330 ) Rotates while the track moves and the sliding door is opened and closed by the rotational force.

As such, the driving force for the endless orbital movement of the drive chain 330 is provided by the motor assembly 200 installed on the other side of the frame applied to the present invention.

The outer frame of the motor assembly 200 supports the motor assembly 200 to the rear frame 120, and a substantially rectangular cover 290 having one side open to seal the motor assembly 200 is a rear frame. Coupled to 120. Accordingly, even in rainy weather, the humidity of the motor assembly 200 is minimized.

On the other hand, the outer side of the drive chain 330 is provided with limit switches 341 and 342 spaced apart from each other to be exposed to the control position of the target device, the separation distance is the same distance as the stroke of the opening and closing stroke of the sliding door. Is installed.

On the other hand, although not shown in the vicinity of the driver's seat is installed an automatic opening and closing switch that controls the driver or passengers to automatically open and close the sliding door by applying power to the drive motor.

Accordingly, when the driving motor 210 is rotated forward to open the closed sliding door, the automatic opening and closing switch is operated in one direction. (At this time, the sliding door is opened by operating the opening and closing means equipped with the sliding door. It is assumed that the drive motor rotates forward.

Then, the limit switch 341 closes the contact to operate the excitation coil of the forward magnetic contactor, the drive motor 210 is rotated in the forward direction.

On the contrary, in order to rotate the driving motor 210 in the reverse direction to close the sliding door, the limit switch 341 is returned and the opening / closing switch is set in the reverse direction from the forward direction, and the limit switch 342 is in contact with the excitation coil of the reverse magnetic contactor. This excitation causes the drive motor 210 to operate in reverse direction.

5 is shown to disassemble the motor assembly of the opening and closing device of the sliding door according to the present invention, the motor assembly 200 of the present invention is a drive motor 210 for providing a rotational force, and on one side of the drive motor 210 The motor shaft 211 is coupled to protrude forward, the rotation piece 230 is coupled to the motor shaft 211 so as to be rotated by a predetermined angle, and the rotation piece 230 to rotate in conjunction with the motor shaft 211 It consists of a fixing piece 220 for fixing, a bearing 240 coupled to the rotating piece 230, and a fixing nut 250 for fixing the bearing 240 to the rear frame 120.

The drive motor 40 is capable of forward and reverse rotation, as well as fast response and simple servo motor is applied.

The fixing piece 220 is a substantially circular plate formed in the center shaft hole 221 is fixedly coupled to the motor shaft 211, the front of the two fixing projections 222 protruding forward at positions opposite to each other. Is formed.

The rotating piece 230 is formed in a circular shape so as to correspond to the fixing piece 220, the rotating shaft 232 for transmitting a rotational force to the driving sprocket 310 protrudes a predetermined amount forward in the center thereof, Two fixing grooves 231 are formed on the rear surface of the rotating piece 230 so as to correspond to the fixing protrusion 222 of the fixing piece 220.

Therefore, when the fixing protrusion 222 of the fixing piece 220 and the fixing groove 231 of the rotating piece 230 are coupled to each other, the rotating piece 230 and the fixing piece (when power is applied to the driving motor 210) 220 is to be integrally rotated by the motor shaft 211. Here, in the present invention, the fixing projection is formed on the front surface of the fixing piece, and the fixing groove is formed on the rear surface of the rotating piece, but the working effect is the same even when the fixing groove is formed on the front surface of the fixing piece and the fixing protrusion is formed on the rear surface of the rotating piece. Do.

The bearing 240 is to rotate the rotating shaft steadily while fixing the rotating shaft 232 is rotated as in a regular position and the load applied to the self-weight and the rotating shaft of the rotating shaft 232 as usual.

Meanwhile, a separation plate 270 is interposed between the driving motor 210 and the fixing piece 220, and the separation plate 270 is coupled to the rear frame 120 to be rotated by a predetermined angle.

That is, the hinge receiving portion 271 is provided at the center of the separating plate 270, and the hinge receiving portion 121 is also provided to correspond to the hinge receiving portion 271 in the rear frame 120 to correspond to each other. As the hinge pin 280 is inserted into and coupled to the accommodating parts 271 and 121, the separating plate 270 is a seesaw plate and a right plate partitioned by the hinge accommodating parts 271 and 121.

A cable hole penetrates substantially in the center of the seat plate 272 to insert the cable 420, and a fixing screw (not shown) is coupled to an end of the cable 420 protruding to the rear surface of the seat plate 272 to connect the cable ( 420 is fixed to the seat plate.

A shaft hole 273a penetrates substantially in the center of the right plate 273 so that the motor shaft 211 penetrates, and a coupling hole is formed around the shaft hole 273a so as to correspond to the coupler 212 of the driving motor 210. 273b is formed. Therefore, the right plate 273 is fixed to the drive motor 210 by a fixing bolt 274 coupled to the coupler 212 through the coupling hole (273b).

On the other hand, one end of the cable 420 is connected to the conversion switch 410 installed around the sliding door or near the driver's seat through the rear frame 120, the conversion switch 410 by the switch box 400 It is fixed stably in the body.

Accordingly, when the cable 420 is pulled forward by pressing the conversion switch 410 in one direction, the seat plate 272 of the separating plate 270 is pulled a predetermined amount toward the front side as shown in FIG. As a result, the right plate 273 is pushed backwards by that amount. As the right plate 273 is pushed backward as described above, the rotating piece 230 fixed to the driving sprocket 310 and the fixing piece 220 fixed to the motor shaft 211 are separated from each other.

That is, in order to manually open and close the sliding door, as described above, it is possible to operate the conversion switch 410 to separate the rotating piece 230 and the fixed piece 220 from each other.

Therefore, when the sliding door is not automatically opened or closed due to a sudden accident, the sliding door can be manually opened or closed by operating the conversion switch 410 installed near the driver's seat or the sliding door.

On the contrary, in order to automatically open and close the sliding door, when the conversion switch 410 is pressed in the other direction, the force used to pull the seat plate 272 of the separating plate 270 by the cable 420 is released as shown in FIG. Due to the elastic force of the return spring 260 interposed between the frame 120 and the seat plate 272, the seat plate 272 is returned to its original position with respect to the hinge pin 280, and the fixing groove of the rotation piece 230 ( 231 and the fixing protrusion 222 of the fixing piece 220 are coupled to each other to rotate the rotating piece 230 and the fixing piece 220 integrally when the driving motor is applied to drive the rotational force of the driving sprocket 310 Will be delivered to.

As described above, according to the present invention, the sliding door can be freely selected automatically or manually according to the driver's or passenger's will, and the sliding door can be opened or closed at a constant speed even on an uphill road or a downhill road. It is possible to prevent occupants from opening or closing to promote occupant safety.

In addition, according to the present invention, since the minimum process parts are applied when the sliding door is manually opened and closed, the overall assembly cost of the opening and closing device of the sliding door can be reduced and the failure rate can be minimized due to the simplification of the process parts. will be.

Claims (3)

A drive sprocket and a driven sprocket, which are spaced apart from each other by the stroke distance of the sliding door in front of the frame; A drive motor having a motor shaft to transmit a driving force to one side; A separating plate provided with a sub-hinge receiving portion to correspond to the main hinge receiving portion provided at the rear of the frame, wherein a hinge pin is inserted into and coupled to each of the hinge receiving portions, and a shaft hole penetrates through a shaft in a substantially center of the right plate; A fixing piece fixedly coupled to the motor shaft penetrated in front of the shaft hole of the separating plate; A rotating piece that is detachably coupled to the fixing piece, and a rotating shaft protrudes from the center to be coupled to the driving sprocket; A fixing member for fixing the rotating piece to the driving sprocket; A cable that is disposed through the through hole formed in the seat plate of the separator plate and rotates the separator plate at a predetermined angle with respect to the hinge pin to allow the separator plate to detach the rotating piece and the fixing piece; And a conversion switch installed inside the vehicle body and connected to the cable to operate the cable. The sliding door opening and closing device according to claim 1, wherein a fixing groove is formed on a rear surface of the rotating piece, and a fixing protrusion is provided on a front surface of the fixing piece so as to correspond to the fixing groove. The opening and closing device of the sliding door according to claim 1, wherein a return spring is interposed between the rear frame and the seat plate of the separation plate.