KR20140029335A - Method for controlling opening and closing mechanism of rope-type screen safety apparatus - Google Patents

Abstract

Disclosed is a screen safety device which comprises one or more screen doors to be vertically opened or closed, a pair of ascending and descending units with a driving part for controlling the ascent and the descent of the screen door, and a sensor for sensing objects in the front or rear side of the screen door; and which is designed to determine whether to allow the manual opening or closing of the screen door according to the existence of sensed objects in the front or rear side when external force applied to the screen door is sensed.

Description

Method for controlling opening and closing mechanism of rope-type screen safety apparatus

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a screen safety device for blocking movement of a person, and more particularly to a technique for controlling manual opening and closing of a screen safety device.

In the modern transportation system, the space provided for the transportation of the transportation means and the space provided for the person outside the transportation means may be separated. For example, a railway line for moving a railway transportation means such as a train or a diesel locomotive is separated from a platform on which passengers can wait. As another example, roads prepared for the transportation of road vehicles, such as four-wheeled vehicles or two-wheeled vehicles, are separated from those waiting for passengers to use the buses or pedestrians attempting to cross the roads.

At this time, a person who enters the space for the transportation of the means of transportation may have an accident caused by the means of transportation. In order to prevent this, a road use protocol between a person and a driver of a road traffic system is provided in a road traffic system. As a safety facility, a passenger platform for a subway station is provided with a left and right screen safety device.

In the above-described left and right opening type screen safety apparatus, a plurality of left and right doors are installed. The left and right opening screen safety devices are designed to have a 1: 1 correspondence between the train door and the screen door. When the door of the train is opened, the screen door and the wall between the doors can appear. Each screen door and / or the wall may be provided with a mechanical locking device for emergency opening, which can be manually opened and closed by releasing it from the train side.

The size of each door and the distance between these doors of the left and right opening screen safety devices corresponds to the size of the doors of trains that stop on the track next to the passenger platform and the distance between these doors. Therefore, when various types of trains with different door sizes stop on one track, if the left and right screen safety devices are installed, passengers can get on and off some types of trains, but can not get on and off other types of trains May occur. Therefore, platforms that support different types of trains at the same time do not have left and right screen safety devices.

In order to accomplish the practical operation of the vertical opening screen safety device, various problems must be solved. First, the descent should be able to maintain the rigidity of the screen door while reducing the weight of the screen door. Second, it should be possible to prevent manual opening and closing of the screen door in unwanted situations. Third, the screen door must be manually opened and closed in a desired situation, for example, in an emergency.

The present invention provides a vertical opening-and-closing type screen safety device capable of solving various problems including at least one of the above-mentioned problems. The scope of the present invention is not limited by the above-mentioned object.

The present invention provides various means for providing a practically usable vertically openable screen safety device.

First of all, the width of the screen door is very wide so that various trains of different types can stop on one platform. For example, if the width of one screen door is set to about 20 m, not only one train having a length of 9 m and having four doors but also one train having three doors with a length of 20 m, Screen safety devices can be used. Also, even if the length of one train is not 20m, this vertical opening screen safety device can be used together.

It is not practical to simply increase the width of one screen door as described above because the weight of the screen door increases. That is, the structure of the screen door must be rigidly designed in order to maintain the shape of the screen door, and the output of the driving device for raising and lowering the screen door must be high. Accordingly, in the present invention, the weight of the screen door is reduced and the rigidity is secured by providing the screen door in the form of a rope.

If the screen door is provided in a rope shape as above, the screen door can be held by hand. Therefore, a person on the platform may attempt to manually ascend and lower the screen door, which may lead to a safety accident. Therefore, the screen safety device according to an embodiment of the present invention is basically operated to prohibit manual opening and closing.

However, in an emergency, manual opening and closing of the rope-type screen door should be permitted. For this purpose, it is necessary to provide a mechanical device for disengaging the lock of the screen door. It may be very difficult to provide the mechanical device when the screen door is provided in the form of a rope as described above. This is because, for example, there is not a solid wall or structure except for the rope in the interval of 20m on the left and right, and the place where the mechanical device is installed is not suitable.

In order to solve this problem, according to one embodiment of the present invention, a screen door is locked (locked) according to a combination of an output of a sensor for detecting whether an object exists on a platform side and an output of a sensor for detecting whether an object exists on a line side And outputs a control signal for putting it in a release state. Mechanical components for locking or opening the screen door can be provided in the rope-up and down means provided on the left and right of the rope-type screen door.

In one embodiment of the present invention provides a mechanical device for preventing or allowing the vertical movement of the screen door according to the above screen door lock control signal. This mechanical device includes a rotary motor for automatically controlling the elevating and lowering of the screen door. In the situation where the person of the platform does not touch the screen door and the screen door is stationary, it can be controlled so that rotation torque does not occur on the rotating shaft of the rotating motor. At this time, when a person on the platform attempts to descend the screen door manually, the force applied to the screen door by the person is transmitted to the rotating motor may be converted into a torque to rotate the rotating shaft of the rotating motor. By detecting this change in torque, the rotation motor can be controlled so that a rotation torque is not issued to the rotation shaft of the rotation motor. At this time, the detection of the torque may be made by, for example, an induced voltage generated by the rotational motor rotating by an external force. According to the embodiment, it is not necessary to necessarily detect the torque change of the rotating motor, it is possible to determine whether the external force is applied to the screen door by detecting the operation of the lever provided separately in the left and right length direction on the screen door. In addition, various methods for detecting whether an external force is applied to the screen door may be used.

According to the present invention can provide a vertical opening and closing safety device that can be applied to the platform in which a variety of trains having different specifications stop. In addition, it is possible to provide a practical vertical opening and closing screen safety device that secures rigidity while reducing the weight of the screen door. It is also possible to provide a locking device and method for controlling a manual operation mode of a vertically openable screen safety device. The scope of the present invention is not limited by the above-described effects.

FIG. 1A is a perspective view of a screen safety device according to an embodiment of the present invention.
Fig. 1B shows a front view of the screen safety device shown in Fig. 1A.
Fig. 1C shows a bottom view of the screen safety device shown in Fig. 1A.
FIG. 1D shows the state of use of the screen safety device shown in FIG. 1A.
FIG. 1E shows another use state of the screen safety device shown in FIG. 1A.
FIG. 2A shows an example of the internal structure of the left-side rope-ascending lowering means shown in FIG. 1A.
FIG. 2B shows the structure of FIG. 2A viewed from the right side.
Fig. 2C shows an example of the internal structure of the right rope-ascending lowering means shown in Fig. 1A.
FIG. 2D shows an example of the internal structure of the auxiliary rope-ascending and descending means shown in FIG. 1A.
FIG. 3A is a view illustrating a structure of a left rope-up / down moving unit according to another embodiment of the present invention, viewed from a platform side to a line. FIG. 3B is a side view of the structure of the left-side rope-ascending lowering means of FIG. 3A.
FIG. 3c is a view showing a structure of the left-side rope-ascending and descending means according to another embodiment of the present invention from a platform side to a line side. FIG. 3D is a side view of the structure of the left-side rope-ascending lowering means of FIG. 3c.
FIG. 4A shows a state in which an outer wire rope and an inner wire rope are installed between the pair of rope-lifting means shown in FIG. 1A.
FIG. 4B shows a state in which the upper block and the lower block are raised to enable movement of a person or the like in the screen safety device shown in FIG. 4A. FIG.
Figure 5a illustrates a screen safety device system in accordance with an embodiment of the present invention.
5B shows a state where a train stops on a platform in which the screen safety device system according to FIG. 5A is installed.
FIG. 6A shows a screen safety device having an object detection sensor according to another embodiment of the present invention viewed from the front (i.e., on the platform side, for example).
Fig. 6B shows a view of the screen safety device according to Fig. 6A viewed from the rear (i.e., on the track side).
FIG. 6C shows the screen safety device shown in FIG. 6A in a left direction from A-A '.
FIG. 6D shows the screen safety device shown in FIG. 6A in a rightward direction from A-A '.
FIG. 6E illustrates a state in which a train arrives at a platform.
Figures 7A and 7B show examples of manual opening and closing scenarios of screen safeguards provided in accordance with an embodiment of the present invention.
Figs. 8A and 8B show an example in which the sensor configuration shown in Figs. 6A to 6E is modified.
Figs. 8C and 8D show another modification of the sensor configuration shown in Figs. 6A to 6E.
Fig. 9 shows another example of a rope-type screen door of a vertical opening / closing type.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It will be apparent to those skilled in the art that the present invention is not limited to the embodiments set forth herein, but may be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, Is provided to fully inform the user. Also, for convenience of explanation, the components may be exaggerated or reduced in size.

FIG. 1A is a perspective view of a screen safety device according to an embodiment of the present invention. Fig. 1B shows a front view of the screen safety device shown in Fig. 1A. Fig. 1C shows a bottom view of the screen safety device shown in Fig. 1A. FIG. 1D shows the state of use of the screen safety device shown in FIG. 1A. FIG. 1E shows another use state of the screen safety device shown in FIG. 1A.

1A to 1E, a screen safety device according to an embodiment of the present invention includes a left-side rope-ascending and descending unit 100L and a right rope-ascending and descending unit 100R installed upright . An upper screen door 11 and a lower screen door 12 may be provided between the left rope-ascending and descending means 100L and the right rope-ascending and descending means 100R. The upper screen door 11 and the lower screen door 12 may each be formed of one or more ropes. The left rope-ascending and descending means 100L and the right rope-ascending and descending means 100R are capable of moving the upper screen door 11 and the lower screen door 12 up and down, respectively.

According to the embodiment, the ropes constituting the left rope-ascending and descending means 100L and the right rope-ascending and descending means 100R may be elongated to the left and right. In this case, these ropes can be struck down. In this case, as shown in Fig. 1A, the auxiliary rope-ascending and descending means 100M can be disposed between the left rope-ascending and descending means 100L and the right rope-ascending and descending means 100R. By providing the auxiliary rope-ascending and descending means 100M, it is possible to prevent the rope from being stuck.

Also, according to the embodiment, the horizontal frame 100U may be disposed on the upper portions of the left rope-ascending and descending means 100L and the right rope-ascending and descending means 100R. The horizontal frame 100U can enhance the structural stability of the screen safety device. A hollow space may be provided in the horizontal frame 100U and the left rope-raising means 100L, the right rope-raising means 100R, and / or the auxiliary rope- A mechanical component installed in the interior of the vehicle 100M or various cables or belts for connecting all the components to each other. In FIG. 1A, the auxiliary rope-ascending and descending means 100M is shown standing upright on the platform. In another embodiment, the auxiliary rope-ascending and descending means 100M may be suspended from the upper horizontal frame 100U.

1B shows a state in which the movement of a person or the like is blocked by the upper screen door 11 and the lower screen door 12. Figure 1D shows a state in which the upper screen door 11 and the lower screen door 12 are moved upward Indicates a state allowing movement of a person or the like. Hereinafter, FIG. 1B illustrates the screen saver in a 'closed' state, and FIG. 1D illustrates a screen saver in an 'open' state. 1D, the upper screen door 11 and the lower screen door 12 may be overlapped with each other at an upper portion of the screen safety device. In order to make the upper screen door 11 and the lower screen door 12 overlap each other, the left rope-up / descent means 100L and the right rope-ascending / descending means 100R are provided on the upper screen door 11 (Or the ascending / descending speed) of the lower screen door 12 is smaller than the ascending / descending distance (or the ascending / descending speed) of the lower screen door 12. 1C, the upper screen door 11 and the lower screen door 12 may be spaced apart from each other in the horizontal direction so that the upper screen door 11 and the lower screen door 12 may overlap with each other.

When the train 701 arrives at the platform 500 as shown in FIG. 1E, the upper screen door 11 and the lower screen door 12 must be elevated so that the passenger can freely pass between the train 701 and the platform 500 can do.

1A to 1E, the screen door is divided into an upper screen door 11 and a lower screen door 12, and the upper screen door 11 and the lower screen door 12 12 are overlapped with each other, the overall height of the screen safety device can be reduced. However, the present invention is not limited to these embodiments. That is, the screen door can be configured without dividing the screen door into two or more upper and lower screen doors as described above. In this case, the overall height of the screen safety device is increased. However, since the upper screen door 11 and the lower screen door 12 need not be separately controlled as shown in Figs. 1A to 1E, Lt; / RTI >

FIG. 2A shows an example of the internal structure of the left-side rope-ascending and descending unit 100L shown in FIG. 1A. FIG. 2B shows the structure of FIG. 2A viewed from the right side. FIG. 2C shows an example of the internal structure of the right rope-ascending and descending means 100R shown in FIG. 1A. FIG. 2D shows an example of the internal structure of the auxiliary rope-ascending / descending means 100M shown in FIG. 1A.

Referring to FIG. 2A, the left rope-ascending and descending means 100L includes an upper sprocket 14 and a lower sprocket 15 connected by a chain 20. To the lower sprocket 15, a driving device 120 such as a rotary motor is connected. The driving device 120 can rotate the upper sprocket 14 and the lower sprocket 15 together.

The left rope-ascending and descending means 100L is provided with two rails 111 and 112 for guiding the left upper block 140L and the left lower block 130L, respectively. The left upper block 140L and the left lower block 130L may be connected to the rotational axis of the upper sprocket 14 by a second connecting hole 152, respectively. The upper screen door 11 of FIG. 1A may be connected to the left upper block 140L and the lower screen door 12 of FIG. 1B may be connected to the left lower block 130L.

A counterbalance 121 having a weight corresponding to the left upper block 140L and the left lower block 130L may be connected to the rotation axis of the upper sprocket 14. [ The driving load applied to the driving device 120 by the weight balance 121 can be reduced.

Referring to FIG. 4A (to be described later), the left upper block 140L is provided with two outer rotation pulleys 43 for mounting the outer wire rope 200H of the upper screen door 11 and inner wire ropes 201H The inner rotating pulleys 42 may include seven inner rotating pulleys 42 for mounting the inner rotating pulleys 42. [ Similarly, the left lower block 130L is provided with two outer rotating pulleys 33 for mounting the outer wire rope 200L of the lower screen door 12 and seven inner rotating ropes for mounting the inner wire rope 201L. (Not shown). The number of rotating pulleys can be changed according to the embodiment.

Referring to FIG. 2B, the first pulley 150 and the second pulley 151 having a smaller diameter than the first pulley 150 are configured to rotate about the same axis as the upper sprocket 14. The first pulley 150 is connected to the left lower block 130L by a second coupling 152 and the second pulley 151 is connected to the left upper block 140L by another second coupling 152 It is connected. The counterbalance 121 is connected to the upper sprocket 14 by the first connection port 122 and moves in a direction opposite to the left upper block 140L and the left lower block 130L. The upper sprocket 14 is connected to the lower sprocket 15 by a chain 20 and the lower sprocket 15 is adapted to be rotated by the driving device 120. The chain 20 is adapted to form a closed loop. When the lower sprocket 15 rotates, the chain 20 rotates, and the upper sprocket 14 rotates as the chain 20 rotates. The driving unit 120 can be controlled by the control unit 59. [

Referring to FIG. 2C, the right rope-ascending and descending unit 100R has an internal structure corresponding to the left rope-ascending and descending unit 100L. However, since the left upper block 140L and the right upper block 140R must be connected by the wire ropes 200H, 200L, 201H, 201L, the right upper block 140R is deformed from the left upper block 140L Structure. That is, the right upper block 140R includes two outer rotation pulleys 43 for mounting the outer wire rope 200H and six inner rotation pulleys 42 for mounting the inner wire rope 201H. The right lower block 130R has the same configuration as the right upper block 140R.

2B, the auxiliary rope-ascending and descending means 100M includes the first pulley 150, the second pulley 151, the first coupling 122, the second coupling 152, And a counterbalance 121. As shown in FIG. Further, it may include a left upper block 140L and an auxiliary upper block 140M corresponding to the right upper block 140R. And an auxiliary sub-block 130M corresponding to the left lower block 130L and the right lower block 130R.

Although the screen doors 11 and 12 and the blocks 140L, 140R, 130L, and 130R have been described in the present specification, it is understood that the two divided components may be combined to redefine 'screen door'.

FIG. 3A is a view illustrating a structure of a left rope-up / down moving unit according to another embodiment of the present invention, viewed from a platform side to a line. FIG. 3B is a side view of the structure of the left-side rope-ascending lowering means of FIG. 3A.

FIG. 3A is a modified embodiment from FIG. 2A, and FIG. 3B is a modified embodiment from FIG. 2B. Therefore, the structure according to FIG. 3A and FIG. 3B will be described focusing on the difference between the structure according to FIG. 2A and FIG. 2B.

3A and 3B, a first upper-rotation member 14L is provided at an upper portion of the left-side rope-ascending and descending means 100L, and a lower portion of the first lower- And a rotary member 15L is provided. The first lower-rotational member 15L is coupled to the driving device 120 so as to be rotated by the driving device 120. [ The first upper-rotatable member 14L and the first lower-rotatable member 15L may be coupled to each other by a first closed type connector 20L. The left lower block 130L may be fixedly coupled to a portion of the first closed type coupling port 20L.

At this time, the first lower-rotary member 15L may be installed so as not to slip with the first closed type connector 20L. For this purpose, for example, one of the following two fastening methods can be used.

Fastening Method 1 : At least one of the first lower-rotational member 15L and the first closed type coupling 20L has a surface with a very high coefficient of friction, and the tension of the first closed type coupling 20L is sufficiently large Value. Thereby, it is possible to prevent the first lower-rotational member 15L and the first closed type connector 20L from sliding with each other by a sufficiently large frictional force. As a result, when the driving device 120 is maintained in the stopped state, the first lower-rotational member 15L is in a fixed state in which it does not rotate. This is because the rotating shaft of the driving device 120 and the first lower-rotational member 15L can be engaged and coupled with each other so as not to slip with each other through the toothed wheels or the like. As a result, when the first lower-rotatable member 15L is not rotated, the first closed type connector 20L is kept in a fixed state without rotating due to the frictional force described above. As a result, the position of the left lower block 130L and the screen door 12, which are fixedly coupled to the first closed type coupling port 20L, do not move up and down.

Fastening Method 2 : The first lower -rotation member 15L is constituted by a sprocket and the first closed type connector 20L is constituted by a chain. In this case, it can be easily understood that the position of the screen door 12 does not move up and down when the driving device 120 is maintained in a stopped state as in the first case.

The above fastening method 1 and fastening method 2 are merely illustrative in order to facilitate understanding of the present invention. That is, the left lower block 130L is fixedly connected to the first closed type coupling port 20L, and the coupling structure in which the first closed type coupling port 20L does not slip with respect to the rotating shaft surface of the driving device 120, Structure. It will be appreciated that if such an engagement structure is provided, the screen door 12 can remain stationary without moving up and down if the drive device 120 remains stationary.

Referring again to FIGS. 3A and 3B, a second upper-rotation member 14S is provided on the upper portion of the left rope-ascending and descending means 100L, and a lower portion of the second lower- - rotating member 15S is provided. The second lower-rotatable member 15S is coupled to the driving device 120 so as to be rotated by the driving device 120. [ The second upper-rotatable member 14S and the second lower-rotatable member 15S can be coupled to each other by the second closed type coupling 20S. The left upper block 140L may be fixedly coupled to a part of the second closed type coupling port 20S.

The action of the mutual coupling of the second upper-rotating member 14S, the second lower-rotating member 15S, the second closed type connecting port 20S, the upper left block 140L and the driving device 120, The operation by the mutual coupling of the first upper-rotation member 14L, the first lower-rotary member 15L, the first closed type connector 20L, the lower left block 130L, As shown in FIG.

On the other hand, the diameters of the first lower-rotational member 15L and the second lower-rotational member 15S may be different from each other. At this time, the linear velocity of the outer periphery of the first lower-rotary member 15L driven by the driving device 120 is higher than the linear velocity of the outer periphery of the second lower-rotary member 15S driven by the driving device 120 Can be set large. As a result, the rotational linear velocity of the first closed type connector 20L coupled to the first lower-rotational member 15L is smaller than the rotational linear velocity of the second closed type connector 20S coupled to the second lower- It can be made larger than the linear velocity. Therefore, the ascending / descending speed of the left lower block 130L fixedly coupled to the first closed type connecting port 20L becomes larger than the ascending / descending speed of the left upper block 140L fixedly coupled to the second closed type connecting port 20S .

In order to set the linear velocity of the first lower-rotational member 15L driven by the driving device 120 to be larger than the linear velocity of the second lower-rotational member 15S driven by the driving device 120, A coupling structure can be used. For example, the rotational center of the first lower-rotational member 15L, the second lower-rotational member 15S, and the driving device 120 are matched with each other, and the first lower- - It can be configured to have a larger diameter than the rotary member 15S.

However, in order to set the linear velocity of the first lower -rotation member 15L to be larger than the linear velocity of the second lower -rotation member 15S, the first lower -rotation member 15L is rotated by the second lower- It is not necessary to necessarily have a larger diameter. For example, the first lower-rotational member 15L and the second lower-rotational member 15S are provided in a gear form, and the first lower-rotational member 15L is engaged with the first lower- And a second gear engaged with the gear and the second lower-rotational member 15S. At this time, by adjusting the gear ratio of the first gear, the second gear, the first lower-rotational member 15L, and the second lower-rotational member 15S, the linear velocity of the first lower- The linear velocity of the lower-rotational member 15S can be adjusted. That is, it is understood that the mechanical coupling structure for adjusting the linear velocity of the first closed type coupling port 20L and the second closed type coupling port 20S may be presented in a method other than the method exemplified in this specification, It is to be understood that the scope of the present invention is not limited by the method.

In FIGS. 3A and 3B, the first lower-rotational member 15L and the second lower-rotational member 15S are all driven by one driving device 120, . ≪ / RTI > 3A and 3B, the driving device 120 is disposed below the left rope-ascending and descending unit 100L. However, in the modified embodiment, the driving unit 120 is disposed above the left rope-ascending and descending unit 100L So that the first upper-rotation member 14L and the second upper-rotation member 14S may be directly driven. At this time, the screen safety device operates on the same principle as described above.

From the above description, it can be understood that the left rope-ascending and descending means 100L shown in Fig. 3A is a modified embodiment from the left rope-ascending descending means 100L shown in Fig. 2A. Although the structure corresponding to the left-side rope-ascending and descending means 100L shown in Fig. 3A is not shown as a modified embodiment from the right rope-ascending and descending means 100R according to Fig. 2C, It can be easily grasped.

In FIGS. 3A and 3B, the driving device 120 is a rotary motor. However, in a modified embodiment, the driving device 120 may be a linear motor as shown in FIGS. 3C and 3D.

FIG. 3c is a view showing a structure of the left-side rope-ascending and descending means according to another embodiment of the present invention from a platform side to a line side. FIG. 3D is a side view of the structure of the left-side rope-ascending lowering means of FIG. 3c.

FIGS. 3C and 3D are modified embodiments from FIGS. 3A and 3B, respectively. Hereinafter, the structure according to FIGS. 3C and 3D will be described focusing on differences from FIGS. 3A and 3B.

3C and 3D, the linear motor 120 (i.e., the driving device) coupled to the left rope-ascending lowering means 100L is composed of a fixed portion 120_2 and a movable portion 120_1, 120_1 can be moved in the vertical direction. For example, the first closed type connecting portion 20L may be fixedly coupled to the movable portion 120_1. When the movable part 120_1 moves vertically, the first closed type connecting part 20L rotates accordingly, and the first lower-rotational member 15L coupled to the first closed type connecting part 20L can rotate together . At this time, the second lower-rotational member 15S, which shares the rotational axis with the first lower-rotational member 15L, is also rotated together with the second closed-type connecting portion 15C coupled to the second lower- 20S can also rotate together. Accordingly, the linear velocity of the first closed-type connecting portion 20L and the second closed-type connecting portion 20S can be relatively reduced by adjusting the diameter ratio of the first lower-rotational member 15L and the second lower-rotational member 15S Can be adjusted.

Although the right rope-ascending and descending means 100R corresponding to the left rope-ascending and descending means 100L in Figs. 3C and 3D is not shown, the structure can be easily understood from the above explanations.

And a motor 120 for rotating the rotary member 15S, 15L, 14S, 14L. The rotary member 15S, 15L, 14S, 14L rotates the closed type connector, ) Can be referred to as a driving portion.

Fig. 4A shows a state in which the outer wire ropes 200H and 200L and the inner wire ropes 201H and 201L are installed between the pair of rope-ascending and descending means 100R and 100L shown in Fig. 1A. 4A shows a state in which the upper blocks 140L and 140R and the lower blocks 130L and 130R descend to block movement of a person or the like.

Two kinds of wire ropes, the outer wire rope 200H and the inner wire rope 201H, can be mounted between the left upper block 140L and the right upper block 140R. The outer wire rope 200H is supported by a total of four outer rotating pulleys 43, and both ends of the outer wire rope 200H can be fixedly coupled by a first fastener 61. [ The inner wire rope 201H is supported by a total of thirteen inner rotating pulleys 42 and both ends of the inner wire rope 201H can be fixedly coupled by the second fastening hole 62. [ The above-described 'upper screen door 11' can be formed by the outer wire rope 200H and the inner wire rope 201H.

In the same manner, two types of wire ropes, the outer wire rope 200L and the inner wire rope 201L, are mounted between the left lower block 130L and the right lower block 130R. The above-described 'lower screen door 12' can be formed by the outer wire rope 200L and the inner wire rope 201L.

The outer wire ropes 200H and 200L may be disposed outwardly of the inner wire ropes 201H and 201L and may be designed so as not to warp or to have a stronger elasticity than the inner wire ropes 201H and 201L. At this time, the outer wire ropes 200H and 200L are made of the same material as the inner wire ropes 201H and 201L, but may be provided using a thicker wire. Alternatively, the outer wire ropes 200H and 200L and the inner wire ropes 201H and 201L may be made of materials having different elastic moduli. That is, the outer wire ropes 200H and 200L and the inner wire ropes 201H and 201L may be different kinds of wire ropes.

FIG. 4B shows a state in which the upper blocks 140L and 140R and the lower blocks 130L and 130R are raised to enable movement of a person or the like in the screen safety device shown in FIG. 4A. In the state of FIG. 4B, the upper blocks 140L and 140R and the lower blocks 130L and 130R are positioned at the same height, and the balance weight 121 is moved downward. The auxiliary rope-ascending and descending means 100M may be disposed between the left rope-ascending and descending means 100L and the right rope-ascending and descending means 100R as shown in Fig. 4B, - Up / down means 100M may be omitted.

Figure 5a illustrates a screen safety device system in accordance with an embodiment of the present invention. 5B shows a state where a train stops on a platform in which the screen safety device system according to FIG. 5A is installed.

The screen safety device system shown in Fig. 5A is a set of six screens (1001 to 1006) in which the screen safety device (the auxiliary rope-up and descending means 100M is omitted) shown in Fig. This system can be used as a safety device for a platform for a total of six (701 to 706) trains, for example, as shown in FIG. 5B. In the case of Fig. 5B, the left and right lengths of one screen safety device can correspond to the left and right lengths of one train.

On the other hand, unlike FIG. 5B, a train may stop on this platform when the length of one train is shorter or longer than the length of one screen safety device. In this case, it is understood that by properly adjusting the stop position of the train, the safety of the passengers placed on the platform by the screen safety system shown in FIG. 5A, as well as the passengers' access through the doors installed on the train can be completely controlled .

FIG. 6A shows a screen safety device having an object detection sensor according to another embodiment of the present invention viewed from the front (i.e., on the platform side, for example). Fig. 6B shows a view of the screen safety device according to Fig. 6A viewed from the rear (i.e., on the track side). FIG. 6C shows the screen safety device shown in FIG. 6A in the left direction from A-A ', and FIG. 6D shows the screen safety device shown in FIG. 6A in the right direction from A-A'. FIG. 6E illustrates a state in which a train arrives at a platform.

The screen safety device 1001 shown in Figs. 6A and 6B includes a front safety sensor TX_FS, a front safety sensor RX_FS, a rear sensor TX_BS, And a rear sensor RX_BS. Here, 'front' represents the platform side, and 'rear' represents the line side. 6A and 6B show an embodiment in which the auxiliary rope-ascending and descending means 100M of FIG. 1A is omitted for convenience of description. The upper screen door 11 and the lower screen door 12 are opened upward Respectively.

 The transmission front sensor TX_FS and the reception front sensor RX_FS may be installed on the front surfaces of the left rope-ascending and descending means 100L and the right rope-ascending and descending means 100R, respectively. The transmission rear sensor TX_BS and the reception rear sensor RX_BS may be installed on the rear side of the left rope-ascending and descending means 100L and the right rope-ascending and descending means 100R, respectively. When the transmission front sensor TX_FS transmits an object detection signal df1 such as infrared rays, the reception front sensor RX_FS can receive the object detection signal df1. If the receiving front sensor RX_FS can not detect the object detection signal df1, it is possible to detect an object such as a person on the front side of the transmission safety sensor (TX_FS) and the reception front sensor (RX_FS) Can be judged to exist.

Similarly, the transmission rear sensor TX_BS and the reception rear sensor RX_BS can determine whether an object such as a person is present on the rear side of the screen safety device using the object detection signal db1.

In the above-described embodiment, the transmission front sensor (TX_FS) and the reception front sensor (RX_FS) are used to monitor whether or not an object exists on the front surface of the screen safety apparatus. However, in other embodiments, an infrared image sensor may be used . In the case of using an infrared image sensor, it is not necessary to separately install a sensor for transmitting and a sensor for receiving, and it is possible to distinguish a person having body temperature. This can be similarly applied to the configuration of the sensor for monitoring whether or not an object exists on the rear surface of the screen safety device. In short, the present invention is not limited by the specific form of the sensor for detecting whether or not an object exists on the front and rear surfaces of the screen door.

The screen safety apparatus 1001 shown in Figs. 6A and 6B can be used, for example, as a component of the screen safety apparatus system shown in Fig. 5A.

The length of each screen safety device according to an embodiment of the present invention described with reference to FIGS. 1A to 6E may be more than several meters (for example, 20 meters) in the lateral direction. Therefore, since the length of the upper screen door 11 and the lower screen door 12 can be more than several meters, it is necessary to reduce the weight of the upper screen door 11 and the lower screen door 12, It is necessary to provide a structure for improving the durability of the door 11 and the lower screen door 12. [ The upper screen door 11 and the lower screen door 12 may be provided in a rope shape as described above but the structure of the upper screen door 11 and the lower screen door 12 is limited thereto It is not. That is, in other embodiments, one or more of the upper screen door 11 and the lower screen door 12 may be provided in a plate form.

 When the upper screen door 11 and the lower screen door 12 are provided in the form of a rope, for example, the upper screen door 11 or the lower screen door 12, in which a person located on the platform is closed down, You can try to lift it upwards. That is, you can attempt to open and close the screen safeguard manually on the platform side. At this time, platform safety accidents can be prevented by making these attempts unsuccessful unless it is allowed to manually open and close the screen safety devices. The circumstances in which it is permissible to manually open and close the screen safeguard may be varied depending on the scenario. For example, as shown in the scenario shown in Fig. 7A or 7B, which will be described later.

Figures 7A and 7B show examples of manual opening and closing scenarios of screen safeguards provided in accordance with an embodiment of the present invention.

In Scenario 1 and Scenario 2 shown in FIGS. 7A and 7B, the presence or absence of an object on the platform side and the line side are represented by four combinations. The platform side object can be sensed by the transmission front sensor TX_FS and the reception front sensor RX_FS described above and the line side object can be detected by the transmission rear sensor TX_BS and the reception rear sensor RX_BS Lt; / RTI > When the sensor detects an object such as a human being, it is indicated as 'detected', and when it is not detected, it is indicated as 'not detected'.

In the case 2 and case 4 of FIGS. 7A and 7B, an object is detected on the line side. A situation where passengers want to escape from a train on a railway line or a person who falls on a railway line wants to escape to the platform may correspond to 'case 2' and 'case 4'. In this case, therefore, the screen safety device must be manually opened and closed, whether or not an object is present on the platform side. Thus, if detected as 'case 2' and 'case 4', the screen safety device can be released or unlocked. Here, the release state means a state in which the rotational axis of the driving apparatus 120 described in FIG. 3B is not controlled by electric power but can be freely rotated by an external force. The expression of leaving the screen safety device in the released state here may mean that the above-mentioned driving portion for driving the screen safety device is placed in the released state.

In Case 1, the object is not detected on the track side, but the object side is detected on the platform side. In this case, if the screen safety device is opened manually by allowing the manual opening and closing of the screen safety device, the person located on the platform side may fall to the line and be accidents. Therefore, 'Case 1' may not allow the screen safety device to be manually opened and closed, thus leaving the screen safety device locked.

'Case 3' of Scenario 1 of FIG. 7A and 'Case 3' of Scenario 2 of FIG. 7B both show cases where no object is detected on the platform side and the line side. In this case, it can be judged that the person who wants to open or close the screen safety device manually is not present near the screen safety device, so in case 3, the screen safety device is set to any of the locked or unlocked states .

The scenarios 1 and 2 described above are for illustrative purposes and other scenarios may be presented that are further specified by adding other conditions to the scenarios or the conditions of the scenarios 1 and 2.

It is also possible to provide a second structure for putting the screen safety device in a locked or released state while providing a first structure of the type described above to place the screen safety device in a locked or unlocked state according to a specific scenario . At this time, priority can be set between the first structure and the second structure.

≪ Example 1 >

Hereinafter, a screen safety device according to an embodiment of the present invention will be described with reference to Figs. 1A, 3A to 3d, 4A, and 6A to 6E.

The screen safety device according to an embodiment of the present invention includes at least one screen door 11 that is opened and closed vertically and a pair of ascending and descending means 100L and 100R that control the ascending and descending of the screen doors 11 and 12. [ And a sensor adapted to sense objects in the front space of the screen doors 11 and 12 and adapted to sense objects in the rear space of the screen doors 11 and 12. [ At this time, in this screen safety device, the elevating and lowering means 100L and 100R are adapted to allow manual opening and closing of the screen doors 11 and 12, and it is possible to detect whether or not an object is detected in the front space, Whether or not the screen doors 11 and 12 are allowed to be manually opened or closed.

At this time, the screen doors 11 and 12 may be ropes 200H, 201H, 200L, and 201L of one row or more.

At this time, the sensor is installed on the front side of the elevating and lowering means 100L and 100R and is installed on the rear side of the front sensors TX_FS and RX_FS and the elevating and lowering means 100L and 100R, And a rear sensor (TX_RS, RX_RS) adapted to sense an object in the rear space. That is, the above-described sensor may be provided by combining a plurality of sensor elements TX_FS, RX_FS, TX_RS, and RX_RS as shown in FIGS. 5A to 5D. However, the present invention is not limited thereto. For example, as shown in Figs. 8A and 8B, the sensor may be composed of two components, a front sensor FS and a rear sensor BS. Alternatively, the sensor may be composed of one sensor (IS) capable of detecting both the front and rear sides as shown in Figs. 8C and 8D.

Figs. 8A and 8B show an example in which the sensor configuration shown in Figs. 6A to 6E is modified. A front sensor FS and a rear sensor BS may be installed on the front and rear surfaces of the upper frame 100U of the screen safety device 1001, respectively. The front sensor FS can sense an object on the platform side (range?) With respect to the screen safety device 1001 and the rear sensor BS can sense objects on the line side (range? °) can be detected. 8A and 8B, the front sensor FS is not divided into transmission and reception. However, when the front sensor FS is composed of an optical sensor such as an infrared sensor, for example, It can be understood that such a configuration can be realized because it can be determined whether or not a person exists. This also applies to the rear sensor BS.

Figs. 8C and 8D show another modification of the sensor configuration shown in Figs. 6A to 6E. One sensor IS may be installed below the upper frame 100U of the screen safety device 1001. [ The sensor IS can sense an object on the platform and the line side (range 2 [Theta] [deg.]) Based on the screen safety device 1001. [ In Fig. 8C and Fig. 8D, the sensor IS is not divided into transmission and reception, and is not divided into forward and reverse. However, in the case where the sensor IS is composed of an optical sensor such as an infrared sensor, it is possible to determine whether a person exists in the forward and backward directions using the color temperature output from the sensor IS, It is understandable that it is possible.

Figs. 6A to 6E and Figs. 8A to 8D are intended to illustrate that various sensor configurations can be employed in the present invention. That is, any of various sensors or sensor systems existing in the present invention can detect objects in the space on the platform side and objects in the space on the platform side based on the screen safety device, Can be achieved.

At this time, the screen safety device may be configured to allow the manual opening and closing if it is detected that an object exists in the rear space.

Alternatively, if it is detected that an object exists in the front space, and if it is detected that no object exists in the rear space, the manual opening and closing may be prohibited.

At this time, each lifting means 100L, 100R includes closed type connecting ports 20L, 20S fixedly coupled to the screen doors 11, 12 to adjust the rising and falling of the screen doors 11, 12, (14L, 14S, 15L, 15S) for rotating the rotary members (20L, 20S), a drive unit (120) for rotating the rotary members (14L, 14S, 15L, 15S) And the control unit 59 controls the driving unit 120 so that the driving unit 120 is able to resist the external force when the driving unit 120 detects an external force applied to the driving unit 120 when the driving unit 120 is in the stopped state. The driving device 120 may be configured to control the driving device 120 to operate.

At this time, the position of the screen doors 11 and 12 may not be changed when the driving apparatus 120 is maintained in a stopped state. This result can be obtained, for example, by the rope-ascending device 100L structure according to an embodiment of the present invention shown in Figs. 3A to 3D.

At this time, the driving device 120 may be a rotary motor, and the external force may be an external torque applied to the rotary shaft of the rotary motor.

At this time, the driving device 120 may be a linear motor, and the external force may be a force applied to the moving part of the linear motor.

At this time, the control unit 59 may be able to sense the induced voltage of the driving unit 120 generated by the external force. For example, when the driving device 120 is a rotating motor, when a voltage is applied to the winding wound around the rotating motor, the rotor of the rotating motor can rotate. Conversely, if the rotor of the rotary motor is forcibly rotated, an induced voltage may be generated in the winding. That is, the rotary motor can be dedicated to the generator. The same applies to the linear motor described above. Therefore, it is well known in the art that an induced voltage is generated in the winding wound on the driving device 120 when an external force is applied to the moving part (or rotor) of the driving device 120 as described above. Can be applied.

At this time, the control unit 59 drives the drive unit 120 in the mode of raising and lowering the screen doors 11 and 12. In the mode in which the screen doors 11 and 12 are kept stationary, When the external force is applied in a mode of keeping the screen doors 11 and 12 in a stopped state, the driving device 120 is operated to release the driving of the driving device 120, And may be adapted to control the driving device 120 to resist an external force. Here, 'releasing' may mean that no power is consumed to operate the moving part (or rotor) of the driving device 120.

At this time, at least one of the rotary members 14L and 14S may be a sprocket. If only the rotating member 14L is a sprocket, the rotating member 14S may also be a sprocket. The closed type connectors 20L and 20S may be chains.

<Example 2>

Hereinafter, a screen safety device according to another embodiment of the present invention will be described with reference to Figs. 1A, 3A to 3D, and 4A.

The screen safety device according to another embodiment of the present invention is provided with one or more screen doors 11 and 12 which are vertically opened and closed and the left and right of the screen doors 11 and 12 to move the screen doors 11 and 12 up and down Descending means 100L and 100R are fixedly coupled to the screen doors 11 and 12 so that the screen doors 11 and 12 14L, 14S, 15L, 15S for rotating the closed type connecting ports 20L, 20S, the rotating members 14L, 14S, 15L, 15S for rotating the closing type connecting ports 20L, 20S, And a control unit 59 for controlling the operation of the driving unit 120. The control unit 59 controls the driving unit 120 when the driving unit 120 is in the stopped state, The driving device 120 may be configured to control the driving device 120 so as to resist the external force.

At this time, the position of the screen doors 11 and 12 may not be changed when the driving apparatus 120 is maintained in a stopped state.

At this time, the driving device 120 is a rotary motor, and the external force may be an external torque applied to the rotary shaft of the rotary motor.

At this time, the driving device 120 may be a linear motor, and the external force may be a force applied to the moving part of the linear motor.

At this time, the control unit 59 may be able to sense the induced voltage of the driving unit 120 generated by the external force.

In addition, it can be easily understood that the above-described Embodiment 1 and other elements described in the detailed description of the present invention can be applied in combination with the screen safety apparatus of Embodiment 2. [

&Lt; Example 3 >

Hereinafter, a screen safety device according to another embodiment of the present invention will be described.

This safety device comprises one or more screen doors 11 and 12 which are vertically opened and closed and drive units 59, 120, 20L, 20S, 14L, 14S, 15L and 15S for controlling the rising and falling of the screen doors 11 and 12, And a sensor RX_FS, RX_BS, TX_FS, TX_BS, FS, RX, RX, and RX that are adapted to detect objects in the front space of the screen doors 11, 12 or objects in the rear space, BS, IS). At this time, when an external force acting on the screen doors 11 and 12 is sensed, whether or not an object in the front space or the rear space is sensed is determined whether the screen doors 11 and 12 can be manually opened or closed .

At this time, the state of the screen door can be divided into a stop mode and a motion mode. The case in which the upward or downward movement is performed to change the open / closed state of the screen door is referred to as a motion mode, and the state in which the screen door has already been raised or already completed is referred to as the stop mode.

When the screen doors 11 and 12 are in the stop mode, a) the drive is basically in a locked state, b) when it detects an external force acting on the screen doors 11 and 12 And when the object in the rear space is sensed, the driving unit may be switched from the locked state to the released state to allow the manual opening and closing mode. At this time, the stop mode may indicate that the screen door has already been lowered.

Here, the above-described locked state means a state in which, for example, when the driving unit includes a rotating motor, the rotating motor is actively controlled so that the rotating shaft does not rotate even if an external force is applied to the rotating shaft of the rotating motor. If the driving unit includes a linear motor, it may mean that the moving unit is actively controlling the moving unit so that the moving unit does not move relative to the stationary unit even if an external force is applied to the moving unit.

Here, the release state refers to a state opposite to the above-described locked state. For example, in the case of a rotary motor, when the external force is applied to the rotary shaft, the rotary shaft can freely rotate by the external force. In the case of the preceding motor, when the external force is applied to the movable portion, .

Alternatively, in this embodiment, when the screen doors 11, 12 are in the stop mode, a) the drive is basically in a released state, and b) an external force acting on the screen doors 11, And if the object is not detected in the rear space, the controller may be configured to prohibit manual opening and closing by switching the driving unit from the released state to the locked state.

Further, in this embodiment, when the driver senses an external force acting on the screen doors 11 and 12, the driver may control the screen doors 11 and 12 so as not to descend at least.

In this embodiment, the sensing of the external force acting on the screen doors 11 and 12 can be performed by sensing the induced voltage generated by the driving unit (rotation axis) of the driving unit by the external force.

Alternatively, sensing the external force acting on the screen doors 11, 12 can be done by sensing the movement of the levers provided on the screen doors 11, 12.

An example of such a lever can be seen from another screen safety device example shown in Fig. The upper screen door 11 and the lower screen door 12 of Fig. 9 may be the rope-shaped screen doors shown in Fig. 4A. Further, the lower screen door 12 may further include a lever 310. At both ends of the lever 310, a movable part 320 including a sensor may be formed. When the person pulls the lever 310 upward, the movable portion 320 is moved, and a sensing signal indicating that an external force is applied to the screen door by the sensor included in the movable portion 320 can be generated. The detection signal may be transmitted to the driving unit described above. The above sensor may be a switch having an electrical contact or may be formed using a piezoelectric element that generates an electrical signal in response to a deformation of the shape.

As described above, there are various methods for detecting the external force acting on the screen doors 11 and 12, and the present invention is not limited by such a specific sensing method.

In the conventional left and right opening type screen doors, a mechanical lever or the like that can be operated by a person is provided on the line side in an emergency, so that the screen door can be opened and closed when the lever is operated. At this time, since the left and right opening type screen doors have a sealed structure in which the line side and the platform side are separated from each other by the screen door, the above mechanical lever can be operated only by a person on the rail side, .

However, in the rope-type screen door according to the embodiment of the present invention, since both sides of the screen door are open to each other, it is difficult to provide a mechanical lever which can be operated only by a person on the line side. Accordingly, by using the object detection sensor and the algorithm according to the embodiments of the present invention, a method of entering into the manual opening / closing mode in an emergency can be provided.

The screen safety device provided in accordance with an embodiment of the present invention may be used to selectively block the line between the platform and the platform in a train platform or to selectively pass As shown in FIG. However, the application of this screen safety device can be used in various situations other than the above-mentioned examples.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

11: upper screen door 12: lower screen door
14: first rotating member, sprocket
14L: first upper-rotating member 14S: second upper-rotating member
15: second rotating member, sprocket
15L: first lower -rotational member 15S: second lower -rotational member
20: Closed connector, chain
20L: first closed type connecting port 20S: second closed type connecting port
59:
100L: left rope-ascending / descending means 100R: right rope-ascending / descending means
120: Driving device (rotary motor, linear motor)
150: first pulley 151: second pulley
200H, 200L: outer wire rope 201H, 201L: inner wire rope
TX_FS: forward sensor for transmission RX_FS: forward sensor for reception
TX_BS: Rear sensor for transmission RX_BS: Rear sensor for reception
FS: Front sensor BS: Rear sensor
IS: Sensor

Claims (8)

One or more screen doors opened and closed in the up and down direction;
A pair of elevating means including a driving part for controlling the elevating of the screen door; And
A sensor configured to detect an object in the front space of the screen door or an object in the rear space of the screen door
Lt; / RTI &gt;
When the external force acting on the screen door is detected, whether to allow the manual opening and closing of the screen door according to whether the object in the front space or the rear space is detected,
Screen safety device. The screen safety device of claim 1, wherein the screen door comprises one or more ropes. 3. The method according to claim 1 or 2,
If the screen door is in the stop mode,
a) the driving unit is basically in a locked state,
b) has a mode for allowing manual opening and closing by switching the driving unit from a locked state to a released state when an object in the rear space is detected when an external force acting on the screen door is detected.
Screen safety device. 3. The method according to claim 1 or 2,
If the screen door is in the stop mode,
a) the drive unit is basically in a released state,
b) has a mode for prohibiting manual opening and closing by switching the driving unit from the release state to the locked state when an object is not detected in the rear space when the external force acting on the screen door is detected.
Screen safety device. The screen safety device according to claim 1 or 2, wherein when the driver senses an external force acting on the screen door, the driving unit controls the screen door so as not to descend. According to claim 1, wherein the drive unit, the closed coupling is connected to the screen door to adjust the lifting and lowering of the screen door, a rotating member for rotating the closed coupling, and a motor for rotating the rotating member Screen safeguards. 7. The screen safety device according to claim 6, wherein sensing an external force acting on the screen door is performed by sensing an induced voltage of the driving device caused by the external force. 7. The screen safety device according to claim 6, wherein sensing an external force acting on the screen door is made by detecting movement of a lever provided on the screen door.

Images