KR101383459B1 - Passage door system between cars - Google Patents

Abstract

A railway vehicle cabin door system is disclosed. The passage door system includes a rail mounted on the door frame, a door body movable on the rail, a screw mounted side by side with the rail, a motor for rotating the screw in the forward and reverse directions, and one end screwed with the screw. The other end is movable in the longitudinal direction of the screw in accordance with the rotation of the sliding unit connected to the door body, and a control unit for controlling the opening and closing of the door body through the control of the motor.

Description

Passenger car door system for railway vehicles {PASSAGE DOOR SYSTEM BETWEEN CARS}

The present invention relates to a railway vehicle cabin door system, and more particularly to an electric sliding door system applied to the railway vehicle cabin door.

Recently, due to the trend of high-speed and high-speed rail cars, automatic doors are installed in the passage doors installed between the cabins and the cabins. Herein, the automatic door refers to a door in which a passage door (entry door) is opened and closed automatically by detecting a passenger who wants to enter or exit, or by operating a switch of the passenger.

Such an automated railway vehicle cabin door gives a great convenience compared to the existing manual door. For example, most passengers in railroad cars have baggage, which makes it difficult to open and close the aisle doors manually, and it is never easy for passengers to open and close the doors, especially while the vehicle is running. Therefore, most of the automatic doors are installed in the aisle doors of railway car cabins.

However, even in the case of the existing automatic door that provides convenience as described above, there are some problems. For example, there is a problem that the noise is large during the opening and closing operation because the existing automatic door is a structure using a belt. In addition, while the vehicle is traveling at a high speed, problems such as poor opening or closing are often caused. The main reason for this is that the general automatic door is applied as it is without considering the special situation of the passage of railway cars.

The present invention provides a railroad car cabin door system of a sliding automatic door type in which a quieter operation is ensured in the opening and closing operation in view of the above-described conventional problems.

The present invention also provides a railway vehicle cabin door system that can be securely locked in the closed state.

The present invention provides a railway vehicle cabin door system that can be easily controlled by the user manually in an emergency.

The present invention provides a railway vehicle cabin door system, comprising: a rail installed in a door frame; A door body movably installed on the rail; A screw installed in parallel with the rail; A motor for rotating the screw in the forward and reverse directions; A sliding unit having one end screwed with the screw and movable in the longitudinal direction of the screw according to the rotation of the screw, and the other end connected to the door body; And a control unit controlling opening and closing of the door body through control of the motor.

It further comprises a lock holding device for maintaining the locked state of the door body.

The lock holding device includes: a locking step installed in the door body; Hook that is caught with the locking jaw by the elastic force in the door body closed state; And a solenoid actuating element which releases the hook by releasing the hook in response to a control signal.

Alternatively, the lock retaining device may include: a hook element installed at the door body side; A lever on which the hook element is caught by an elastic force when the door body is closed; And a cam element installed on the screw to release the latch by pushing the lever when the screw rotates.

And a first limit switch for confirming the closed state in the closed position of the door body, and a second limit switch for confirming the open state in the open position of the door body.

The apparatus may further include an opening holding switch operated by a user, and the controller may control the motor so that the door body is in an open position for a predetermined time when a signal of the opening holding switch is generated.

It further comprises a manual automatic conversion switch, and controls the supply of power supplied to the motor by the operation of the manual automatic conversion switch.

The sliding unit includes: a transfer nut screwed with the screw to move in the longitudinal direction in accordance with the forward and reverse rotation of the screw; And a hanger part having one side connected to the transfer nut and the other side connected to the door body.

According to the present invention, by applying a sliding type automatic door employing a screw to the power transmission to the cabin door of the railway vehicle, very high quietness is ensured during the opening and closing operation. The present invention also provides a railway vehicle cabin door system that can be securely locked in the closed state. As a result, even when cornering at high speed, there is no malfunction in which the door body is opened unnecessarily. The present invention can be conveniently used by the user by having a variety of switches that can be easily controlled by the user manually in an emergency.

1 is a view schematically showing the entire railway vehicle cabin door system of the present invention.
Figure 2 is a front view of the railway vehicle cabin door system of the present invention.
3 is a perspective view of a railway vehicle cabin door system of the present invention.
Figure 4 is a perspective view of the main part of the railway vehicle cabin door system of the present invention.
5 is a view showing a rail and a hanger employed in the railway vehicle cabin door system of the present invention.
6 is a view showing a screw and the transfer nut portion employed in the railway vehicle cabin door system of the present invention.
Figure 7a is a view showing an example of the lock retaining device employed in the railway vehicle cabin door system of the present invention.
Figure 7b is a view showing another example of the lock holding device employed in the railway vehicle cabin door system of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the embodiments of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

1 is a view schematically showing the entire railway vehicle cabin door system of the present invention. Figure 2 is a front view of the railway vehicle cabin door system of the present invention. 3 is a perspective view of a railway vehicle cabin door system of the present invention. Figure 4 is a perspective view of the main part of the railway vehicle cabin door system of the present invention. 5 is a view showing a rail and a hanger employed in the railway vehicle cabin door system of the present invention. 6 is a view showing a screw and the transfer nut portion employed in the railway vehicle cabin door system of the present invention. Figure 7a is a view showing an example of the lock retaining device employed in the railway vehicle cabin door system of the present invention. Figure 7b is a view showing another example of the lock holding device employed in the railway vehicle cabin door system of the present invention.

 Referring to the drawings, the railway vehicle cabin door system of the present invention includes a rail 10 installed in the door frame, and a door body 20 installed to be movable on the rail 10. In this detailed description, the door frame is omitted for convenience and simplicity of understanding.

The rail 10 is disposed in the transverse direction on the top of the door frame to open and close the door of the present invention in a sliding manner. 4 and 5, the hanger 30 having a plurality of rolls 31 installed to rotate in the 'c'-shaped rail 10 is coupled to the door body 20 and the upper end. The door body 20 is moved. This hanger 30 constitutes a sliding unit employed in the railway vehicle cabin door system of the present invention together with the transfer nut described later. At least one of these hangers 30 may be installed.

The railway vehicle cabin passage system of the present invention employs a screw 41 and a motor 42 as a door engine, i.e., a door drive. The screw 41 is installed side by side with the rail 10 described above. The screw 41 rotates in the forward and reverse directions by the motor 42, and the motor 42 rotates the screw 41 in the forward or reverse direction according to a control signal of the controller 50 to be described later. Will be opened and closed. In order to transfer the door body 20, the transfer nut 32 is screwed to the screw 41 to move on the screw 41 when the screw 41 rotates.

The hanger described above is coupled to the transfer nut 32. Accordingly, the sliding unit is configured to include the transfer nut 32 and the hanger 30.

As described above, the railroad car cabin door system of the present invention provides a sliding type automatic door using a screw 41. Therefore, the quietness is superior to the existing belt power transmission configuration.

In addition, the railway vehicle cabin door system of the present invention includes a lock holding device for maintaining the locked state of the door body (20). The lock holding device prevents the door body 20 from being unnecessarily opened, such as when cornering at high speed, by maintaining the locked state when the door body 20 is in the closed position. In the conventional automatic doors, there are many configurations to keep the closed state simply by the power of the motor. However, adopting the lock holding device of the present invention solves such a conventional problem.

The lock holding device of the present invention may have various embodiments as described below with reference to FIGS. 7A to 7C.

An example of the lock holding device may be a device for performing a mechanical operation as shown in FIG. 7A. The lock holding device shown in FIG. 7A has a roller 610 in a state in which the door is closed by elastically supporting the lever 613 and the lever 613 provided with a cam 611 serving as a locking jaw and a roller 612 at an end thereof. 612 includes a spring 614 to engage the cam 611. This configuration is such that the lock is released when a force exceeding the elastic force is applied.

Another example lock holding device may be a device for performing an electrical operation as shown in Figure 7b. The hooking jaw 621 installed on the door body 20 and the hooking jaw 621 and the hook 622 which are caught by the elastic force in the state in which the door body 20 is closed, and the hook 622 in response to the control signal. It may include a solenoid actuating element 623 to push and release. The elastic body that provides elasticity to the hook 622 to maintain the locked state may be the spring 624. The lock retaining device shown in FIG. 7B is in a locked position when the hooking jaw 621 installed on the door body 20 approaches the closed position together with the door body 20, while lifting the hook 622. In this case, the hook is completely caught by the spring force of the spring 624. Therefore, the locked state is maintained in this state. When the door is opened, the solenoid operating element 623 pushes the rear of the hook 622 according to the control signal of the control unit 50 to perform the release operation.

Another example lock retainer is shown in FIG. 7C. It is provided with a hook element 631 provided on the door body side, a lever 632 on which the hook element 631 is caught by a resilient force while the door body 20 is closed, and a screw 41 mounted to rotate the lever. It may include a cam element 633 to be released by pushing 632. The lock retaining device performs the unlocking or unlocking operation by pushing the lever 632 while the cam element 633 rotates when the screw 41 starts to rotate to open the door body 20.

In addition, the railway vehicle cabin passage door system of the present invention, the first limit switch 71 to confirm the closed state in the closed position of the door body 20, and the second to confirm the open state in the open position of the door body 20 Each of the limit switches 72 is further included. The first and second limit switches 71 and 72 check whether the door body 20 is in the closed position or the open position, respectively, and transmit a signal to the controller 50. The controller 50 may receive these signals and perform a predetermined operation. For example, when the door body 20 is closed, the door body 20 is opened at a predetermined opening speed. In addition, when the door is open and in the open position, the door is automatically closed after maintaining the open state for a predetermined opening and holding time. The closing speed is also closed for a set amount of time.

Basically the railway vehicle cabin door system of the present invention, as can be seen in Figure 1, includes a user open button 91. The user opens the door body 20 by pressing the user open button 91 to pass through the passage door.

In addition, in the railway vehicle cabin door system of the present invention, as can be seen in Figure 1, may further include an open maintenance switch 80 for the user to operate. The controller 50 controls the motor 42 so that the door main body 20 is in the open position for a predetermined time when the signal of the open maintaining switch 80 is generated.

In addition, as can be seen in Figure 1 railway vehicle cabin door system of the present invention further comprises a manual automatic conversion switch 90. The power supplied to the motor 42 is cut off or connected by an operation of a manual automatic conversion switch.

In addition, the railway vehicle cabin door system of the present invention may further include a sensor (not shown) for detecting a passing object. The controller 50 may control the motor 42 to open the door body 20 in the closing operation when the detection signal of the sensor is transmitted.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.

10: rail 20: door body
30: hanger 31: roll
32: Feed nut 41: Screw
42: motor 50: control unit
71, 72: First and second limited switch 80: Open hold switch
90: manual automatic switching switch 91: user open button
611: cam 612: roller
613: lever 614: spring
621: Hanging jaw 622: Hook
623: solenoid operating element 624: spring
631: hook element 632: lever
633: cam element

Claims (8)

As a railway vehicle cabin door system:
A rail mounted to the door frame;
A door body movably installed on the rail;
A screw installed in parallel with the rail;
A motor for rotating the screw in the forward and reverse directions;
A sliding unit having one end screwed with the screw and movable in the longitudinal direction of the screw according to the rotation of the screw, and the other end connected to the door body;
A lock holding device for maintaining a locked state of the door body;
An open hold switch operated by a user; And
And a control unit controlling opening and closing of the door body through control of the motor.
The lock holding device includes: a locking step installed in the door body; Hook that is caught with the locking jaw by the elastic force in the door body closed state; And a solenoid actuating element configured to push and release the hook in response to a control signal.
The control unit generates a control signal for releasing the lock holding device, and when the signal of the opening and holding switch is generated to control the motor so that the door body is in the open position for a predetermined time,
Railroad door system.
delete delete The method of claim 1, wherein the lock retainer is:
A hook element installed at the door body side;
A lever on which the hook element is caught by an elastic force when the door body is closed;
And a cam element installed on the screw to release the latch by pushing the lever at the time of rotation.
Railroad door system.
The method according to claim 1,
A first limit switch confirming the closed state at the door body in the closed position;
Further comprising a second limit switch for confirming the open state of the door body in the open position,
Railroad door system.
delete The method according to claim 1,
Further includes a manual automatic conversion switch,
To control whether or not the power supplied to the motor by the operation of the manual automatic conversion switch,
Railroad door system.
The method of claim 1, wherein the sliding unit:
A transfer nut screwed with the screw to move in the longitudinal direction according to the forward and reverse rotation of the screw; And
It includes; one side is connected to the transfer nut and the other side hanger connected to the door body;
Railroad door system.

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