JP2017039470A - Railroad crossing blockage machine - Google Patents

Abstract

[PROBLEMS] When a barge descends as a train approaches, a person (including a person who has pulled a bicycle) confined in a railroad crossing or a user of an electric wheelchair does not apply a particularly large force. While it is possible to escape by lifting the scissors, it makes it difficult to lift the scissors easily from the outside.
SOLUTION: There is a breaking rod 2 provided at a railroad crossing 1 that opens and closes, a lift E that has a drive device 3 that supplies power for opening and closing the blocking rod 2, and whether or not there is a person in the railroad crossing 1 And a control mechanism for controlling the clutch mechanism based on a detection signal of the human detection sensor S. The control means When the rod 2 is in the closed state and the presence of a person in the detection area 4 in the crossing 1 is detected by the human sensor S, the power transmission is cut off.
[Selection] Figure 1

Description

  The present invention is a railroad crossing that can be easily escaped by a person (including a person who pulls a bicycle) or a user of an electric wheelchair confined in the railroad crossing when the barrier is lowered as the train approaches. Regarding the circuit breaker.

A railroad crossing barrier is provided at the railroad crossing to prevent a person or a vehicle from entering the railroad crossing when the train passes.
A type 1 automatic level crossing that occupies most of a level crossing is provided with a level crossing barrier that prevents a person or a vehicle from entering the level crossing when the train passes.
For example, the railroad crossing breaker disclosed in Patent Document 1 has a first barrier rod and a second barrier rod that block the crossing path of the railroad crossing, and the first barrier rod is from the rotation center to the tip. The length is shorter than that of the second barrier rod, and the second barrier rod is set to be driven to rotate later than the first barrier rod.
In the railroad crossing breaker, the time difference until the second barrier rod descends after the first barrier rod is lowered and the difference between the lengths of the first barrier rod and the second barrier rod. The road width necessary for escaping can be secured. As a result, the vehicle can escape to the outside of the railroad crossing even if the barrier rod descends before the vehicle passes through the railroad crossing.

Further, in the railroad crossing barrier disclosed in Patent Document 2, when the base end side blocking rod and the tip end side blocking rod are connected in a straight line, and when receiving the external force, the leading end side blocking rod is pressed. Bending in an upward diagonal direction, and then returning the blocking rod to its original position by urging the tension spring prevents the breaking of the blocking rod and ensures safety during bending. It is the structure which has a control part which controls to rotation to the direction of.
Since the crossing barrier has a configuration in which the barrier rod is bent obliquely upward, a person trapped in the railroad crossing can easily escape by lifting the barrier rod.

JP-A-7-81573 Japanese Patent Laid-Open No. 2015-9717

By the way, in the railroad crossing breaker disclosed in Patent Document 1, the second barrier rod formed in a long length descends with a time difference, but when the barrier rod is about to escape after descending, the barrier rod is lifted. There must be.
At this time, the barrier rod is in a state of being mechanically connected to the motor and the reducer of the elevator, so when lifting the barrier rod, in order to lift the barrier rod against the load of the motor and the reducer A large force is required, and there is a problem that it is difficult for an elderly person or a disabled person using an electric wheelchair to lift.

Further, in the railroad crossing breaker disclosed in Patent Document 2, although the leading end side of the barrier rod is bendable, the barrier rod is always urged by the tension spring. The barrier must be lifted against the urging force.
For this reason, when lifting the barrier rod, a large force is required, and similarly to Patent Document 1, it is difficult for an elderly person or a disabled person using an electric wheelchair to lift.

Further, in Patent Document 2, since the conditions for lifting the barrier rod are the same on the inside and outside of the railroad crossing, it is easy to lift the barrier rod in a lowered state from the outside of the railroad crossing, and the barrier rod is removed from the outside. There is a problem that it can be lifted to enter the railroad crossing.
Furthermore, the techniques disclosed in Patent Documents 1 and 2 are mainly for the purpose of safely evacuating a car left in a railroad crossing, and include people (including those who pulled a bicycle) and electric motors. It was not intended for wheelchair users, and new technology was expected in this respect.

  The present invention has been made in view of the above-described circumstances, and when a barrier fence descends as a train approaches, a person (including a person who has pulled a bicycle) confined in a railroad crossing or an electric wheelchair An object of the present invention is to provide a railroad crossing barrier that allows a user, etc., to lift and escape from a barrier without any particular difficulty, but to lift the barrier when entering from the outside. And

In order to solve the above problems, the present invention proposes the following means.
That is, the present invention relates to an elevator having a breaking rod provided at a level crossing that is opened and closed, and a drive device that supplies power for opening and closing the breaking rod, and a person that detects whether or not a person is present in the level crossing. Based on a detection signal from a detection sensor, a power interruption means provided in the middle of a power transmission path from the driving device to the shutoff rod, and blocking power transmission from the driving device. Control means for controlling the power interrupting means, wherein the control means detects that the shut-off bar is in a closed state and the person detection sensor detects that a person is present in a detection area within the crossing. The power interrupting means is operated to interrupt power transmission from the drive device.

According to the present invention, in the middle of the power transmission path from the drive device to the shutoff rod, a power interrupting means for interrupting the power transmission from the drive device is provided, and whether or not there is a person in the railroad crossing is detected. Control means for controlling the power interrupting means based on a detection signal from the human sensing sensor is provided.
Here, the control means operates the power interrupting means to cut off the power transmission from the driving device when the shut-off rod is in the closed state and the person detection sensor detects that a person is present in the crossing. As a result, the power transmission is interrupted, so that the interrupter can be opened without applying a mechanical load from the drive device.
As a result, in the present invention, when the fence is lowered as the train approaches, a person trapped in the crossing (including a person pulling a bicycle), a user of an electric wheelchair, etc. The barrier rod can be lifted and escaped without adding, and the safety of the crossing can be enhanced.
In addition, since the presence of the person outside the level crossing is not detected by the human sensor, the power interrupting means is not operated, and the mechanical load of the lowering barrier is not released, and the interruption is not released. Can't lift the kite easily. This makes it difficult to enter the railroad crossing from the outside, and the safety of the railroad crossing can also be improved in this respect.

  The power interrupting means is a clutch mechanism for interrupting power transmission from the drive device.

  According to this configuration, since the power interrupting means for interrupting the power transmission from the drive device is configured by the clutch mechanism, a mechanical load is applied to the shut-off rod through the power transmission system from the drive device due to the operation of the clutch mechanism. Can be surely prevented, and the opening operation of the blocking bar can be performed smoothly.

  Further, the detection area of the human sensor is set at a location about 1 m from the boundary line between the level crossing and the external area.

  According to this configuration, by setting the detection area of the human detection sensor at a position about 1 m within the level crossing from the boundary line between the level crossing and the external area, the human detection sensor is erroneously caused by mischief from outside the level crossing. It is prevented from operating, and thereby the detection performance of the human sensor can be improved.

  The human sensor may detect whether or not a person is present in a detection area within the railroad crossing based on a detection signal output from the infrared sensor.

  The human sensor may detect whether or not a person is present in a detection area within the railroad crossing based on a detection signal output from the ultrasonic sensor.

  The human sensor may detect whether there is a bicycle or a wheelchair in a detection area in a railroad crossing based on a change in inductance of a loop coil installed on a roadbed, and may estimate the presence of a person.

  The human sensor may detect whether or not a person is present in a detection area in the railroad crossing based on a detection signal output from a three-dimensional laser radar type railroad crossing obstacle detection sensor.

  Further, the human sensor detects whether or not a person is present in a detection area in a railroad crossing based on image data output from an imaging camera.

  The human sensor may detect whether or not a person is present in a detection area within the railroad crossing based on a detection signal output from a pressure sensor installed on the roadbed.

  The human sensor detects whether or not a person is present in the railroad crossing based on a detection signal from a touch sensor installed on the outer peripheral surface of the barrier fence.

  According to the above configuration, an infrared sensor, an ultrasonic sensor, a loop coil, a three-dimensional laser radar type crossing obstacle detection sensor, as a human detection sensor that detects whether or not a person is present in a detection region within the crossing, By selectively using an imaging camera, a pressure sensor, a touch sensor, or the like according to the situation, it is possible to reliably detect a person who has entered the detection area within the crossing.

  Further, the breaking rod is provided with a brake mechanism for gradually lowering the breaking rod when the opening operation of the breaking rod is permitted by the operation of the power interrupting means.

  According to the above configuration, since the brake mechanism is provided to gradually lower the barrier rod when the opening operation of the barrier rod is permitted by the operation of the power interrupting means, a person (bicycle) confined in the railroad crossing is provided. Even if a handicapped person using an electric wheelchair lifts the barrier rod and then releases his hand from the barrier rod, the brake mechanism gradually drops and suddenly drops. Is prevented. As a result, the crossing person can easily escape from the crossing and can avoid an accident that collides with the barrier. Therefore, the safety of the crossing can be improved.

According to the present invention, when the fence is lowered as the train approaches, a person (including a person who has pulled a bicycle) confined in the railroad crossing or a user of an electric wheelchair applies a particularly large force. Therefore, the barrier bar can be lifted and escaped, and the safety of the crossing can be enhanced.
In addition, since the presence of the person outside the level crossing is not detected by the human sensor, the power interrupting means is not operated, and the mechanical load of the lowering barrier is not released, and the interruption is not released. Can't lift the kite easily. This makes it difficult to enter the railroad crossing from the outside, and the safety of the railroad crossing can also be improved in this respect.

It is a perspective view showing the whole level crossing to which the present invention is applied. It is a figure which shows the whole human detection sensor. It is a figure which shows the detection range of a human sensor. It is a figure which shows the relationship between the electric wheelchair confined by the level crossing, and the detection area of a human detection sensor. It is a figure which shows the mischievous relationship from the detection area | region of a human sensitive sensor, and an external area | region. It is the figure which displayed the specific dimension of the detection area. It is an external view of the drive device for driving a blocking bar. FIG. 8 is a diagram showing a specific configuration of the drive device of FIG. 7, where FIG. 8A is a side view showing the entire drive device, and FIG. 8B is a view of FIG. FIG. It is a figure which shows the modification 1 of the person detection sensor. It is a figure which shows the detection area | region of FIG. It is a figure which shows the modification 2 of the person detection sensor. It is a figure which shows the modification 3 of the person detection sensor. It is a figure which shows the modification 4 of the human sensor S, Comprising: (A) is a figure which shows that the person in a level crossing touched the touch sensor, (B) is sectional drawing which shows the arrangement | positioning state of a touch sensor.

An embodiment of the present invention will be described with reference to FIGS.
FIG. 1 shows a railroad crossing barrier 100 installed in a railroad crossing 1 according to an embodiment of the present invention, which includes an elevator E that cuts off the crossing of people and vehicles when passing a train, and a human sensor S.
The elevator E has a blocking bar 2 for blocking the crossing of a person or a vehicle at the level crossing 1 and a driving device 3 for driving the blocking bar 2 to open and close. An alarm device F that emits a warning sound when the train passes is also provided separately, but is not included in the crossing barrier 100.
As shown in FIG. 2, the human sensor S is installed so as to have two detection regions 4 parallel to each other in the horizontal direction (width direction) of the road.
The drive device 3 includes a clutch mechanism 20 (power interrupting means) and a control means C. These components will be described later.

Further, in the railroad crossing barrier 100, when the barrier rod 2 is lowered, whether or not there are persons (including a person who pulled a bicycle) or a user of an electric wheelchair in the railroad crossing 1 inside the barrier rod 2. There is provided a human sensor S for detecting.
The human sensor S detects whether a person (including a person who pulled a bicycle) or a user of an electric wheelchair exists in the detection area 4 in the crossing 1 based on a detection signal output from the infrared sensor. The detection area 4 of the human sensor S is set inside the boundary line 6 of the external area 5 at the crossing 1.

As shown in FIG. 3, the detection area 4 of the human sensor S is an area between the vehicle travel area 7 through which the train R passes and the boundary line 6 of the crossing external area 5 (for example, the boundary line 6 For example, an area for detecting whether or not a person (including a person who pulled a bicycle) or a user of an electric wheelchair is left behind in the railroad crossing 1 It is provided as.
The reason why the detection area 4 is set at such a position is that, as shown in FIG. 4, the person who tries to escape from the railroad crossing (with a bicycle pulled) in a state where the barrier 2 is lowered to pass the train. In order to prevent erroneous operation of the human detection sensor S due to mischief or the like from the external region 5 of the railroad crossing 1 as shown in FIG. is there.
Specifically, when a person tries to reach his / her hand beyond the blocking heel 2 from the external region 5, the posture shown in FIG. 5 is reached, and it is difficult to lift the heel while touching the detection region 4. It should be noted that even if the hand is extended from the top of the barrier 2, the hand becomes an obstacle and the barrier 2 does not lift up. As shown in FIG. 5, the reachable area is a fan shape, and as long as the hand moves within such a range, it does not reach the detection area 4 (also below).
Moreover, when extending a leg, it is difficult to reach under the detection area 4. Furthermore, if the mechanism is such that the detection is not performed unless the upper and lower two of the detection region 4 are simultaneously cut off, mischief becomes even more difficult.
Further, as shown in FIG. 6, the detection area 4 of the human sensor S includes a width (900 m to 1225 mm) between the vehicle traveling area 7 and the boundary line 6 of the level crossing outer area 5, and the track roadbed and the vehicle traveling area. 7 is determined based on the height distance (920 mm) from the vehicle passage area.

  Note that the position of the detection area 4 of the human sensor S in FIG. 5 is two places where a person's hand or foot from the outside cannot reach (in FIG. 5, a predetermined height on the inner side of the boundary line 6 is about 1 m. However, the present invention is not limited to this, and it may be installed at one place or at three or more places.

  Next, with reference to FIG.7 and FIG.8 (A) (B), the drive device 3 for opening and closing the interruption | blocking gutter 2 is demonstrated.

  FIGS. 7 and 8A show a drive device 3 for a crossing barrier according to an embodiment of the present invention, FIG. 7 is a side view thereof, and FIG. 8A is an internal view of the drive device 3. FIG. 8 (B) is a view of FIG. 8 (A) as viewed from the arrow VB.

In these drawings, what is indicated by reference numeral 10 is a casing, and the casing 10 is provided with a rotating shaft 11 that rotatably supports the blocking bar 2 via a support member 11A.
The rotating shaft 11 supports the blocking rod 2 at an end position protruding from the housing 10, and a driving gear 12 is provided at an intermediate portion located in the housing 10.
The drive gear 12 is meshed with an intermediate pinion 14 that is positioned coaxially with an intermediate gear 13 that is positioned within the housing 10 and is positioned in parallel with the rotational drive shaft 11.

The intermediate pinion 14 and the intermediate gear 13 rotate integrally. The intermediate gear 13 is engaged with a motor pinion 16 that is rotationally driven by a drive motor 15 (see FIG. 8A).
The motor pinion 16 is provided on the drive shaft 17 of the drive motor 15, and is driven in the direction of arrow a1 (during the closing operation) or in the direction of arrow b1 (during the opening operation) by driving the drive motor 15 as the train R passes through the railroad crossing. ). Such control of the drive motor 15 is performed by the control means C incorporated in the drive device 3.

  With the configuration as described above, when the train approach signal indicating that the train R is approaching is received by the control means C, the drive motor 15 is rotationally driven in the direction of the arrow a1 for a certain period of time. The pinion 16, the intermediate pinion 14, the intermediate gear 13, and the drive gear 12 are rotated in the directions of arrows a1 to a3, respectively. As a result, at the railroad crossing 1, the blocking rod 2 fixed to the rotating shaft 11 of the drive gear 12 is lowered to a closed state.

  On the other hand, in this control means C, when a train passage signal indicating that the train has passed is received, the drive motor 15 is rotationally driven in the direction of the arrow b1 for a certain period of time, and accordingly, the motor pinion 16, the intermediate pinion 14 and The intermediate gear 13 and the drive gear 12 are rotated in the directions of arrows b1 to b3, respectively. As a result, at the level crossing 1, the blocking bar 2 fixed to the rotating shaft 11 of the drive gear 12 is raised to an open state.

As shown in FIG. 8B, a clutch mechanism 20 serving as a power interrupting means is provided in the middle of the drive shaft 17 that transmits the rotational driving force of the drive motor 15.
The clutch mechanism 20 turns on (connects) / off (disconnects) the power transmission from the drive motor 15 to the motor pinion 16 based on the clutch control signal from the control means C. A mechanical load is applied to the barrier rod 2 to prevent the barrier rod 2 from being easily lifted, and the mechanical load applied to the barrier rod 2 in the case of OFF (disconnection) is released, The lifting of the barrier 2 is facilitated.
As the clutch mechanism 20, for example, a friction clutch using a disk, a drum or the like is used.

The clutch control signal from the control means C is output based on the detection signal from the human sensor S, and when the barrier rod 2 is lowered, the human sensor S causes the detection area 4 in the railroad crossing 1 to be detected. The clutch mechanism 20 is turned on (connected) / off (disconnected) by detecting whether there is a person (including a person who pulled a bicycle) or a wheelchair.
That is, in the control means C, when the person detection sensor S does not detect the presence of a person in the detection area 4 in the crossing 1 when the barrier bar 2 is lowered, the clutch control for turning on (connecting) the clutch mechanism 20 is performed. When a signal is output and a certain mechanical load is applied to the barrier 2 and when the human sensor S detects the presence of a person in the detection area 4 in the crossing 1, the clutch mechanism 20 is turned off (disconnected). ) Is released to release the mechanical load applied to the shut-off rod 2, thereby facilitating the escape of the person trapped in the crossing 1 to the outside.

Further, the breaking rod 2 is provided with a brake mechanism 21 (see FIG. 8A) that gradually lowers the breaking rod 2 when the breaking rod 2 is opened by an OFF (disconnection) operation of the clutch mechanism 20. ) Is provided.
When the clutch mechanism 20 is turned off (disengaged), the brake mechanism 21 is lifted by the person trapped in the crossing 1 (including the person who pulled the bicycle) or the disabled person using the electric wheelchair. After that, even if the hand is released from the barrier 2, the barrier 2 is gradually lowered to prevent a sudden drop. Thereby, a crossing person can easily escape from the level crossing 1 and can avoid an accident that collides with the barrier 2 in advance.

As described above in detail, according to the railroad crossing barrier 100 according to the present embodiment, the clutch mechanism 20 that cuts off the power transmission from the driving device 3 in the middle of the power transmission path from the driving device 3 to the breaking bar 2. And a control means C for controlling the clutch mechanism 20 based on a detection signal from a human sensor S that detects whether or not there is a person in the railroad crossing 1.
Here, in the control means C, when the shutoff bar 2 is in the closed state and the person detection sensor S detects that a person is present in the crossing 1, the clutch mechanism 20 is turned off (disconnected) by Since the power transmission from the drive motor 15 is interrupted, the power transmission is interrupted, so that the opening operation of the interrupter 2 can be performed without applying a mechanical load from the drive motor 15.

Thereby, in the railroad crossing barrier 100 according to the present embodiment, when the barrier bar 2 descends as the train approaches, use of a person (including a person who pulled a bicycle) or an electric wheelchair trapped in the railroad crossing 1 A person or the like can lift the barrier rod and escape without applying a particularly large force, and the safety of the railroad crossing 1 can be improved.
Further, since the presence of the person outside the level crossing 1 is not detected by the human sensor S, the clutch mechanism 20 is not turned off (disengaged), thereby the mechanical of the barrier 2 in the lowered state. The breaking bar 2 cannot be easily lifted up without releasing the load. This makes it difficult to enter the railroad crossing 1 from the outside, and the safety of the railroad crossing 1 can also be improved in this respect.

  Further, according to the railroad crossing barrier 100 according to the present embodiment, the clutch mechanism 20 that interrupts the power transmission from the drive device 3 is provided as a power interrupting means. It is reliably prevented that a mechanical load is applied to the barrier 2 through the system, and the opening operation of the barrier 2 can be performed smoothly.

  Further, according to the crossing barrier 100 according to the present embodiment, the detection area 4 of the human sensor S is set to a place that is about 1 m from the boundary line 6 between the crossing 1 and the external area 5. By doing so, it is possible to prevent the human detection sensor S from malfunctioning due to mischief from the outside of the railroad crossing 1, thereby improving the detection performance of the human detection sensor S.

  Further, according to the railroad crossing barrier 100 according to the present embodiment, the brake mechanism 21 that gradually lowers the barrier rod 2 when the opening operation of the barrier rod 2 is permitted by the operation of the clutch mechanism 20 is provided. . As a result, even if a person trapped in the crossing 1 (including a person who pulled a bicycle) or a disabled person using an electric wheelchair lifts the barrier 2 and then releases his hand from the barrier 2, The brake mechanism 21 prevents the blocking rod 2 from gradually falling and dropping suddenly. As a result, a crossing person can easily escape from the crossing 1, and an accident that collides with the blocking bar 2 can be avoided in advance, and the safety of the crossing 1 can be improved.

In the above-described embodiment, whether or not a person or a wheelchair is present in the detection region 4 in the railroad crossing 1 is detected by the human sensor S using infrared rays. However, the present invention is not limited to this. A person in the detection region 4 (including a person who has pulled a bicycle) or a wheelchair may be detected by the detection means shown in FIG.
[Modification 1]
As shown in the overall view of FIG. 9 and the diagram representing the detection region 4 of FIG. 10, the human sensor S may be attached to a high position such as an alarm F. Furthermore, the present invention is not limited to the infrared sensor, and an ultrasonic sensor, a three-dimensional laser radar type crossing obstacle detection sensor may be used, or an image output from the imaging camera using the imaging camera as the human sensor S Based on the data, it may be clearly detected whether or not a person or a wheelchair exists in the detection region 4 in the crossing 1.

[Modification 2]
As shown in FIG. 11, as a human sensor S, a loop coil 30 is installed in the roadbed of the level crossing 1, and a bicycle or a wheelchair exists in the detection region 4 in the level crossing 1 based on a change in the inductance of the loop coil 30. It may be detected whether or not a person is present by detecting whether or not. Here, the detection of the bicycle or the wheelchair by the loop coil 30 may be performed depending on whether or not a predetermined inductance that is a reference is exceeded.

[Modification 3]
As shown in FIG. 12, a pressure sensor 31 is installed on the roadbed of the level crossing 1 as the human detection sensor S, and a person or a wheelchair is located in the detection region 4 in the level crossing 1 based on the detection signal output from the pressure sensor 31. It may be detected whether or not it exists. Here, detection of a person or a wheelchair by the pressure sensor 31 is performed based on whether or not a preset reference pressure value is exceeded.

[Modification 4]
As shown in FIGS. 13A and 13B, as a human sensor S, a touch sensor 32 is installed on the outer peripheral surface of the barrier rod 2, and a detection area in the crossing 1 is detected based on a detection signal from the touch sensor 32. Whether or not there is a person in 4 may be detected.
At this time, the palm of the hand is detected from the contact range of the person's hand detected by the touch sensor 32, so that if the finger is outside and the palm is inside, it is determined that the person is inside the railroad crossing. If the palm is outside, it is good to determine that the person is outside the railroad crossing.
A person detection signal may be output only when it is determined by the touch sensor 32 that there is a person in the level crossing 1.

  As can be seen with reference to FIGS. 9 to 13, according to the crossing barrier 100 according to the present embodiment, it is detected whether or not a person or a wheelchair exists in the detection region 4 in the crossing 1. As the human sensor S, an infrared sensor, an ultrasonic sensor, a loop coil, a three-dimensional laser radar type crossing obstacle detection sensor, an imaging camera, a pressure sensor, a touch sensor, or the like is selectively used according to the situation or a plurality of them are combined. This makes it possible to reliably detect a person who has entered the detection area 4 in the railroad crossing 1.

  As mentioned above, although embodiment of this invention was explained in full detail with reference to drawings, the concrete structure is not restricted to this embodiment, The design change etc. of the range which does not deviate from the summary of this invention are included.

  The present invention allows a person (including a person who has pulled a bicycle), a user of an electric wheelchair, and the like who are confined in a railroad crossing to escape safely and easily when the barrier is lowered as the train approaches. It relates to a level crossing barrier.

DESCRIPTION OF SYMBOLS 1 Level crossing 2 Barrier 3 Driving device 4 Detection area 5 External area 6 Boundary line 7 Vehicle travel area 15 Drive motor 20 Clutch mechanism (power interruption means)
21 Brake mechanism 30 Loop coil 31 Pressure sensor 32 Touch sensor 100 Railroad crossing breaker S Human detection sensor E Elevator F Alarm R Train

Claims (11)

An elevating machine having a breaking bar provided at a railroad crossing to be opened and closed, and a driving device for supplying power for opening and closing the breaking bar;
A human sensor for detecting whether or not there is a person in the level crossing;
A power interrupting means provided in the middle of a power transmission path from the drive device to the shutoff rod, for interrupting power transmission from the drive device;
Control means for controlling the power interruption means based on a detection signal from the human sensor,
The control means operates the power interrupting means when the shut-off bar is in a closed state and the person detection sensor detects that a person is present in a detection area within a railroad crossing. A crossing barrier that cuts off the power transmission.   The railroad crossing breaker according to claim 1, wherein the power interrupting means is a clutch mechanism that interrupts power transmission from the driving device.   3. The detection area of the human sensor is set at a place about 1 m in the level crossing from a boundary line between the level crossing and an external area. 4. Level crossing barrier.   The said person detection sensor detects whether a person exists in the detection area in a railroad crossing based on the detection signal output from an infrared sensor, The any one of Claims 1-3 characterized by the above-mentioned. Railroad crossing barrier.   The said human sensor detects whether a person exists in the detection area in a level crossing based on the detection signal output from an ultrasonic sensor, The any one of Claims 1-3 characterized by the above-mentioned. Level crossing barrier.   The human detection sensor detects whether a bicycle or a wheelchair exists in a detection area in a railroad crossing based on a change in inductance of a loop coil installed on a roadbed, and estimates the presence of a person. The level crossing barrier according to any one of 1 to 3.   The human detection sensor detects whether or not a person is present in a detection region in a crossing based on a detection signal output from a three-dimensional laser radar type crossing obstacle detection sensor. The crossing barrier according to any one of 3 above.   The said person detection sensor detects whether a person exists in the detection area in a level crossing based on the image data output from an imaging camera, The any one of Claims 1-3 characterized by the above-mentioned. Railroad crossing barrier.   The human detection sensor detects whether or not a person is present in a detection area in a railroad crossing based on a detection signal output from a pressure sensor installed on a roadbed. A railroad crossing breaker according to item 1.   The said person detection sensor detects whether a person exists in a level crossing based on the detection signal from the touch sensor installed in the outer peripheral surface of the barrier rod. Railroad crossing barrier described in 1.   11. The brake mechanism according to claim 1, further comprising: a brake mechanism that gradually lowers the barrier rod when the opening operation of the barrier rod is permitted by the operation of the power interrupting means. A crossing breaker according to any one of the above.

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