KR20100011894A

KR20100011894A - Apparatus for driving door

Info

Publication number: KR20100011894A
Application number: KR1020090052995A
Authority: KR
Inventors: 이호경
Original assignee: 주식회사 디유에이엔아이
Priority date: 2008-07-25
Filing date: 2009-06-15
Publication date: 2010-02-03

Abstract

PURPOSE: A door driving apparatus of plug door type is provided to reduce malfunction or error by implementing a plug door mechanism in a simple structure. CONSTITUTION: A motor(120) is installed in a frame(110) and produces a driving force. A moving member(150) is slid in the frame by being activated by the driving force of the motor. A door support(170) is slid in the frame with a moving route to vary the interval with respect to the moving member. The door support is coupled to the moving member and moved by the linear motion of the moving member. The frame comprises a guide rail(114) in which the door support is slid.

Description

Door driving device {Apparatus for driving door}

The present invention relates to a door drive device.

Conventionally, in opening and closing a doorway such as a railroad car, a door is moved between a wall of the vehicle by sliding a door when the door is opened, and a door that is accommodated on the wall of the vehicle when the door is closed. A sliding door drive device that slides in the opposite direction is used.

However, in the case of using a sliding door drive device that slides the door only in a linear direction in this way, it is difficult to seal the interior space of the vehicle by the space spaced between the door and the wall of the vehicle, reducing the heating and cooling efficiency, noise There was a problem of being exposed to pollution.

Accordingly, studies on a plug door type door driving device that does not require a separate space for accommodating the door have been conducted. However, in the case of these devices, a power transmission structure and other connection structures are complicated, There is a risk of malfunction, and there is a limit that the repair of parts is not easy even in the event of a device failure.

The present invention provides a door driving apparatus in which a plug door method is implemented with a simple structure, thereby reducing failure or malfunction.

According to an aspect of the present invention, as a device for driving the door so that the door is drawn in and out while sliding the door (sliding), the frame (frame), the motor is installed in the frame and generates a driving force (motor), the sliding member is slidingly coupled to the frame and the moving member (moving member) linear movement by receiving the driving force of the motor, and the sliding member is coupled to the frame to have a moving path that changes the moving path and the distance of the moving member, the straight line of the moving member A door driving device is movably coupled to the moving member in and out so as to move by movement, and includes a door support for supporting the door.

In this case, a guide rail is formed in the frame to which the door support is slidably coupled, and the guide rail is pulled out inclined inward with respect to the moving direction of the moving member so that the door can be pulled in and out. It may include a mouth guide.

At this time, it may further include a connecting bar interposed between the movable member and the door support, and both ends are hinged to the movable member and the door support, respectively.

In addition, a plurality of connecting bars may be provided, and the plurality of connecting bars may have the same length and be arranged side by side.

And, the length of the connection bar may be larger than the distance that the door is drawn in and out.

According to an embodiment of the present invention, by implementing a plug door method with a simple structure, it is possible to reduce the failure or malfunction of the device, and to easily replace the parts in case of failure.

An embodiment of a door driving apparatus according to the present invention will be described in detail with reference to the accompanying drawings, in the following description with reference to the accompanying drawings, the same or corresponding components are given the same reference numerals and duplicate description thereof It will be omitted.

In addition, the combination is not only a case of physically direct contact between each component, but also a concept encompassing a case in which other components are interposed between each component and each component is in contact with the other component. To be used.

1 is a perspective view showing the operation of the door 200 by the door driving apparatus 100 according to an embodiment of the present invention.

According to the present embodiment, as shown in FIG. 1, the door 200 is pulled in and out while sliding the door 200 in left and right directions by a plug door method. A door drive device 100 for driving 200 is presented.

Here, the plug door method, as shown in Figure 1, by sliding the door 200 to the left and right to open and close the door, so that the door 200 does not protrude to the outer surface of the railway vehicle, etc. when the door is closed. , The door 200 is drawn into the vehicle, and when the door is opened, it means a door driving method that draws out the door 200 that is pulled in such that the door 200 is slidable along the outer surface of the vehicle. Use it in the same or similar sense.

The door driving apparatus 100 according to the present embodiment is installed at, for example, an entrance of a railroad car to drive the door 200 in a plug door manner, thereby opening and closing the door of the vehicle. Referring to the operation of the door 200 in the opening and closing of the door in more detail, the door 200 is pulled out of the vehicle while the sliding movement, that is, pulled toward the passenger from the vehicle, and then left or right along the outer surface of the vehicle The door 200 is slid to the left to open the door, and on the contrary, the door 200 slides to the left or the right along the outer surface of the vehicle and is drawn into the vehicle, ie from the passenger toward the vehicle, thereby closing the entrance.

As such, by implementing the plug door method using the door driving apparatus 100 according to the present embodiment, the door 200 may be slidably moved along the outer surface of the vehicle when the door is opened. There is no need to form a separate space for accommodating), it is possible to improve the utilization of the internal space, as well as to remove the space spaced apart from the door 200 and the outer surface of the vehicle when the entrance is closed. It is possible to effectively block the interior space of the vehicle from the outside.

Hereinafter, the door driving apparatus 100 according to the present embodiment will be described with reference to FIGS. 2 to 6.

2 is a perspective view showing the door driving apparatus 100 according to an embodiment of the present invention. 3 is a side view showing the door driving apparatus 100 according to an embodiment of the present invention. 4 is an explanatory view showing an operating state of the movable member 150 and the door support 170 of the door driving apparatus 100 according to an embodiment of the present invention.

2 to 4, as a device for driving the door so that the door is drawn in and out while sliding, the frame is installed on the frame 110 and the frame 110 and generates a driving force. ), A sliding member slidingly coupled to the frame 110 and receiving a driving force of the motor 120 to move linearly, the moving member 150 and the moving path in which the moving path between the moving member 150 and the inside and outside is changed. Slidingly coupled to the frame 110 to have a, is coupled to the movable member 150 to move in and out to move by the linear movement of the movable member 150, door support (door 170) for supporting the door A door driving device 100 is provided.

According to the present embodiment as described above, the plug door method can be implemented with a simple structure such as the movable member 150 and the door support 170, thereby reducing the failure or malfunction of the device, and can easily replace the parts in case of failure. have.

In addition, by sliding the moving member 150 while supporting the load of the door by using the support rail 112 and the wheel 182, the amount of lubricating oil can be reduced and the noise of the device can be reduced.

Hereinafter, each configuration will be described in more detail.

The frame 110 is installed, for example, in a vehicle, and supports the motor 120, the moving member 150, the door support 170, and the like. That is, the body of the motor 120 is fixed to the frame 110 so as to transfer the driving force of the motor 120 to the moving member 150, the moving member 150 to operate the door by the driving force of the motor 120. ) And the door support 170 is slidingly coupled.

The motor 120 is installed in the frame 110 and generates a driving force. As described above, the motor 120 is fixed to the frame 110, and transmits a driving force to a screw (130) coupled to the rotating shaft of the motor (120).

The lead screw 130 is interposed between the motor 120 and the moving member 150 to transmit the driving force of the motor 120 to the moving member 150. That is, the screw 130, as shown in Figure 2, one end is fixed to the rotating shaft of the motor 120 through the coupling (coupling 125), the other end is rotatably coupled to the frame 110 Since the moving member 150 is engaged with the screw 130 using the nut 140, the rotational motion of the rotation shaft of the motor 120 is converted into the linear motion of the moving member 150.

In other words, since the nut 140 is coupled to the moving member 150 through the bracket 145, as described above, as the nut 140 is engaged with the screw 130 and moves linearly, the nut 140 is used. And the movable member 150 is also fixed, and receives a driving force of the motor 120 to linearly move with the nut 140.

At this time, the frame 110, the nut 140 is slidingly coupled to the auxiliary rail 118 for guiding the movement of the moving member 150 is formed. That is, as shown in Figure 2, the movable member 150 and the nut 140 is fixed to each other by the bracket 145, both sides of the bracket 145 are slidingly coupled to the auxiliary rail 118, The linear motion of the 140 and the movable member 150 is guided.

In this case, as shown in FIG. 3, the wheel 184 is interposed between the bracket 145 and the auxiliary rail 118, so that the nut 140 and the moving member 150 are arranged along the auxiliary rail 118. It can move straight sliding smoothly.

Meanwhile, a supporting rail 112 and a guide rail 114 are also formed in the frame 110, and as shown in FIG. 4, the movable member 150 is supported by the supporting rail 112. The door support 170 is slidably coupled to the frame 110 through the guide rails 114, and the movable member 150 and the door support 170 are connected to the door through a connecting bar 160. It is coupled to be spaced apart from each other into the drawer in and out.

3, these support rails 112 and guide rails 114 are formed on surfaces perpendicular to each other of the frame 110. Accordingly, the movable member 150 and the door support 170 may be slidably coupled to the mutually perpendicular surfaces of the frame 110, so as to more effectively support the loads of the doors acting in the vertical and horizontal directions. The door drive device 100 can be miniaturized.

Hereinafter, the moving member 150, the door support 170, and the connection bar 160 of the door driving apparatus 100 according to the present embodiment will be described in more detail with reference to FIGS. 2 to 6.

5 is a perspective view illustrating a moving member 150 and a door support 170 of the door driving apparatus 100 according to an embodiment of the present invention. 6 is a front view illustrating the moving member 150 and the door support 170 of the door driving apparatus 100 according to an embodiment of the present invention.

The moving member 150 is slidably coupled to the frame 110 and linearly receives the driving force of the motor 120. As shown in FIGS. 2 and 3, the movable member 150 is slidably coupled to the auxiliary rail 118 formed on the frame 110 through the bracket 145 to straightly move through the bracket 145. Rather, the sliding rail is coupled to the support rail 112 formed on the frame 110 via the wheel 182 to support the load of the door.

As such, the movable member 150 is slidably coupled to the support rail 112 formed in the frame 110, so that the movable member 150 smoothly slides with respect to the frame 110, and the load of the door is effectively supported. Can be.

In this way, the wheel 182 is interposed between the movable member 150 and the support rail 112 of the frame 110, thereby moving the movable member 150 with respect to the frame 110 without supplying a separate lubricant. The sliding movement can be performed smoothly, and the noise generated by the operation of the device can be effectively reduced.

At this time, as shown in FIG. 5, the wheel 182 is plural and disposed along the moving direction of the moving member 150. Accordingly, since the door may be prevented from tilting in one direction when the moving member 150 moves, the moving member 150 may be supported with respect to the frame 110 more efficiently.

Meanwhile, some of the plurality of wheels 182 contact one side of the support rail 112, and another part of the plurality of wheels 182 contact the other side of the support rail 112. That is, as shown in FIG. 6, the plurality of wheels 182 are arranged such that their rotation centers are positioned on imaginary straight lines A and A 'which are different from each other. In other words, the imaginary straight line A connecting the rotation centers of the wheels 182 disposed on both sides of the plurality of wheels 182 is an imaginary straight line passing through the rotation center of the wheel 182 disposed in the center ( A ').

As such, the plurality of wheels 182 are disposed so that the rotation centers of the plurality of wheels 182 are not positioned on the same straight line so as to be in contact with one side and the other side of the support rail 112, respectively, thereby moving member 150. Even if the load is received in the vertical direction by the inclination of the door, it is possible to flexibly support such a load, thereby inducing a more stable driving of the door driving device 100.

In addition, a part and the other part of the some wheel 182 mentioned above are alternately arrange | positioned. That is, as shown in FIG. 6, the plurality of wheels 182 are arranged such that the positions of the rotation centers are zigzag in accordance with the moving direction of the moving member 150, thereby providing wheels with respect to the support rail 112. The contact of 182 is in equilibrium, so that the moving member 150 can be supported more stably.

Meanwhile, as illustrated in FIGS. 2 to 5, the door support 170 is slidably coupled to the frame 110 so as to have a moving path in which the moving path of the moving member 150 and the front and rear intervals are changed, and the moving member. It is coupled to the moving member 150 so as to move in and out so as to move by a linear motion of 150 to support the door.

That is, since the moving path of the door support 170 is not a straight line parallel to the moving path of the moving member 150, as shown in FIG. 4, the moving member is moved from each point of the moving path of the door support 170. The distance to the linear movement path of 150 is not constant but changes. In this way, by sliding the door support 170 so as not to be parallel to the movement path of the moving member 150, the door supported by the door support 170 can be drawn in and out.

In addition, the door support 170 is coupled to the movable member 150 to be movable through the connecting bar 160 so that the plug distance from the movable member 150 changes. Accordingly, the linear movement of the moving member 150 by the driving force of the motor 120 is transmitted to the door support 170, the door support 170, the outer surface of the vehicle or the like while drawing the door coupled thereto in and out It can be moved along the sliding.

At this time, since the door support 170 is slidingly coupled to the guide rail 114 formed in the frame 110, the movement path is determined according to the shape of the guide rail 114. A part of the guide rail 114 is a take-out guide 116 extending inclined inward with respect to the moving direction of the moving member 150, so that the door can be pulled in and out as shown in FIG. Thus, when the door support 170 is slidingly coupled to the guide rail 114 via the wheel 186, the door support 170 slides on the guide rail 114 following the linear movement of the movable member 150. During the movement, the door passes through the take-out guide 116, and the door can be taken in and out with respect to the vehicle while the distance from the moving member 150 increases or approaches.

That is, as shown in FIG. 4, the draw-out guide 116 of the guide rail 114 is formed in a diagonal direction corresponding to the middle of the moving direction with the outside where the door is drawn out and the moving member 150. The door may be pulled in and out corresponding to the vertical direction of the moving direction of the moving member 150 without disturbing the linear movement of the moving member 150 by the driving force of 120.

Meanwhile, as illustrated in FIGS. 4 to 6, the connection bar 160 couples the door support 170 to the movable member 150 to be moved in and out. That is, the connection bar 160 is interposed between the movable member 150 and the door support 170, and both ends thereof are hinged to the movable member 150 and the door support 170, respectively.

Accordingly, a link structure formed of the movable member 150, the connection bar 160, and the door support 170 is formed. By implementing a plug door method through the simple link structure, a failure of the door driving apparatus 100 is realized. However, malfunctions can be significantly reduced and parts can be easily replaced even in the event of a fault.

In this case, as shown in FIG. 4, the connection bars 160 are plural, and the plurality of connection bars 160 are equal in length to each other and are arranged side by side. As such, the length L of the connection bar 160 is constant, and they are arranged in parallel to each other, such that the movable member 150 and the door support 170 are also parallel to each other, which is coupled to the door support 170. Since the door does not rotate relative to the moving member 150, the design of the door movement path can be simplified more.

In addition, as shown in FIG. 4, the length L of the connection bar 160 is greater than the distance D from which the door is drawn in and out. Accordingly, even when the door is completely pulled out, the angle between the moving member 150 and the connecting bar 160 is not vertical but an acute or obtuse angle, so that the connecting bar 160 is centered on the moving member 150. As always rotates only between a certain angle, it is possible to minimize the internal space of the door drive device 100, as a result it can be miniaturized device.

Hereinafter, the operation of the door 200 by the door driving apparatus 100 according to the present embodiment will be described with reference to FIGS. 1 to 6.

First, when electricity is supplied to the motor 120 from an external power source, and the rotation shaft of the motor 120 rotates in the forward direction, the screw 130 directly connected to the rotation shaft of the motor 120 is coupled by the coupling 125. Rotate around the central axis.

Accordingly, the nut 140 engaged with the screw 130 is linearly moved laterally along the longitudinal direction of the screw 130, and the moving member 150 fixed with the nut 140 by the bracket 145. In addition, the linear motion with the nut 140. At this time, the nut 140 is slidingly coupled to the auxiliary rail 118 of the frame 110 through the bracket 145, the movable member 150 is slidingly coupled to the support rail 112 of the frame 110, The moving member 150 supports the load of the door 200 while sliding more smoothly to the frame 110.

As such, according to the linear movement of the movable member 150, the door support 170 coupled with the movable member 150 also moves laterally. However, the door support 170 is coupled to the movable member 150 and the inside and outside through a pair of connecting bars 160, both ends are coupled to the movable member 150 and the door support 170, respectively, Rather than simply performing a linear movement in the lateral direction, a diagonal movement is also possible to pull the door 200 forward.

That is, the door support 170 is slidably coupled to the guide rail 114 in which the draw-out guide 116 in a diagonal direction is formed, and can be pulled out at the same time as sliding.

Accordingly, the door 200 coupled to the door support 170 is slid out and diagonally drawn at the same time as sliding of the door support 170, and then continues to slide to open the doorway.

On the contrary, when closing the entrance and exit, the motor 120 is rotated in the reverse direction. Accordingly, the nut 140 and the movable member 150 are linearly moved in the opposite direction as in the case of the opening of the doorway, and the door support 170 is diagonal, not merely lateral, as in the above-described principle. Movement in the direction is possible.

Accordingly, the door 200 coupled to the door support 170 is slidably moved in the diagonal direction to close the entrance while slidingly corresponding to the movement of the door support 170.

As mentioned above, although an embodiment of the present invention has been described, those of ordinary skill in the art may add, change, delete or add components within the scope not departing from the spirit of the present invention described in the claims. The present invention may be modified and changed in various ways, etc., which will also be included within the scope of the present invention.

1 is a perspective view showing the operation of the door by the door driving apparatus according to an embodiment of the present invention.

Figure 2 is a perspective view of a door driving apparatus according to an embodiment of the present invention.

Figure 3 is a side view showing a door drive device according to an embodiment of the present invention.

Figure 4 is an explanatory view showing the operating state of the moving member and the door support of the door drive device according to an embodiment of the present invention.

5 is a perspective view showing a moving member and a door support of the door driving apparatus according to an embodiment of the present invention.

Figure 6 is a front view showing a moving member and the door support of the door drive device according to an embodiment of the present invention.

100: door driving device 110: frame

112: supporting rail 114: guide rail

116: draw-out guide 118: auxiliary rail

120: motor 125: coupling

130: screw 140: nut

145: bracket 150: moving member

160: connecting bar 170: door support

182, 184, 186: wheel 200: door

Claims

An apparatus for driving the door such that the door is pulled in and out while sliding,

A frame;

A motor installed in the frame and generating a driving force;

A moving member slidingly coupled to the frame and linearly receiving the driving force of the motor; And

The door is slidingly coupled to the frame to have a moving path in which the moving path and the distance of the moving member change, and are movably coupled in and out of the moving member to move by linear movement of the moving member, thereby supporting the door. A door drive device comprising a door support.

The method of claim 1,

The frame has a guide rail to which the door support is slidingly coupled,

The guide rail,

And a draw-out guide extending inclined inward with respect to the linear movement direction of the moving member so that the door is drawn in and out.

The method of claim 1,

And a connecting bar interposed between the movable member and the door support, the connecting bars being hinged to the movable member and the door support, respectively.

The method of claim 3,

The connecting bar is a plurality,

The plurality of connection bars are door drives, characterized in that the length is the same as each other and arranged side by side.

The method of claim 4, wherein

The length of the connection bar, door drive device, characterized in that greater than the distance that the door is drawn in and out.