JP2012017642A - Vehicle passage intercepting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle passage intercepting machine that can quickly recover a blocking bar after a release operation.SOLUTION: A vehicle passage intercepting machine includes a blocking bar 30 which is rotated between a blocking position S for blocking passing of a vehicle and a permission position K for permitting advancing of the vehicle to perform an opening/closing operation, a release shaft 22 for rotating the blocking bar 30 in a release direction to release impact by the vehicle, and a recovery driving section 60 for rotating the blocking bar 30 rotated in the release direction in a recovery direction. The recovery driving section 60 includes a wire 66 fixed to the blocking bar 30, a pulley 61 wound with the wire 66, a motor for recovery 68 for rotating the pulley 61 in a winding direction P2 for the wire 66, and a clutch mechanism 70 for transmitting only the rotation in the winding direction P2 between the pulley 61 and the motor for recovery 68 mutually.

Description

The present invention relates to a vehicle traffic barrier installed at a toll gate such as an expressway and capable of blocking or permitting vehicle traffic.

  In recent years, ETC (Electronic Toll Collection System) has been introduced as a system for automating toll collection in toll roads such as expressways and parking lots. In this ETC, when the vehicle detector detects the entry of the vehicle to the toll gate, the lane server issues a communication command to the roadside antenna, and based on this, the roadside antenna communicates with the vehicle-mounted device mounted on the vehicle. To start. Next, the lane server determines whether the vehicle is a normal vehicle or an abnormal vehicle based on information obtained from the vehicle-mounted device by the roadside antenna. When it is determined that the vehicle is a normal vehicle, the blocking bar of the vehicle passage breaker is opened, and when it is determined that the vehicle is abnormal, the blocking bar is maintained in a closed state, thereby blocking or permitting vehicle traffic.

  In this ETC, there is an accident in which when the vehicle forcibly passes the vehicle passage breaker even though the blocking rod is closed, the blocking rod and the vehicle are damaged by the collision of the vehicle with the blocking rod. Arise. Therefore, in order to deal with such a problem, there has been proposed a vehicle traffic breaker in which the blocking bar performs a release operation so as to release the impact received by the blocking bar during a vehicle collision (for example, Patent Documents 1 and 2). reference).

  While the vehicle traffic breaker described in these Patent Documents 1 and 2 is normally used without the vehicle colliding with the blocking bar, the blocking bar rotates in the vertical plane and is in a state of lying down horizontally. While blocking the passage of the vehicle, an opening / closing operation is performed to permit the vehicle to enter while standing vertically. When the vehicle collides with the blocking rod, the blocking rod is bent along the horizontal plane in the vehicle traveling direction according to the impact, and is in a released state. In this way, the release operation of the vehicle traffic barrier is performed.

Japanese Patent No. 3594957 JP 2003-336232 A

  However, in the vehicle traffic breaker disclosed in Patent Documents 1 and 2, there is no mechanism for returning the bent blocking bar after the release operation to the state before the release operation. It was necessary to work to manually return the blocking rod to the non-released state. Therefore, there is a case where it takes a long time to return the blocking rod after the release operation, and there is a problem that a traffic jam of the vehicle occurs during that time.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a vehicle traffic breaker that can quickly and smoothly return a blocking rod after a release operation.

In order to achieve the above object, the present invention employs the following means.
That is, the vehicle traffic barrier according to the present invention includes a blocking rod that is rotated between a blocking position that blocks the passage of the vehicle and a permission position that allows the vehicle to move, and that opens and closes. A release shaft that rotates in a release direction that releases an impact caused by the rotation, and a return drive unit that rotates the blocking rod rotated in the release direction in a return direction that is opposite to the release direction. To do.

  According to the vehicle traffic breaker having such a feature, when the blocking bar rotates in the release direction due to the collision of the vehicle with the blocking bar, the blocking bar is moved in the returning direction by driving the return driving unit. It can be rotated.

  Further, in the vehicle traffic breaker according to the present invention, the return drive unit is configured to transmit the positive rotation of the electric motor and the output shaft of the electric motor to the blocking rod, thereby rotating the blocking rod in the return direction. And a transmission mechanism.

  According to the vehicle traffic breaker having such a feature, when the output shaft of the motor is rotated forward after the blocking rod rotates in the release direction, the rotational force of the forward rotation is applied to the blocking rod via the power transmission mechanism. The blocking rod can be rotated in the return direction. That is, the blocking rod after the release operation can be returned quickly and smoothly.

  Further, in the vehicle traffic breaker according to the present invention, as the power transmission mechanism, a system for transmitting the rotation of the output shaft to the blocking rod via a wire, and the rotation of the output shaft via a belt is the blocking rod. It is preferable to adopt either a method for transmitting the rotation of the output shaft to the blocking bar via a gear.

  Accordingly, the positive rotation of the output shaft of the electric motor can be reliably transmitted to the blocking bar, and the blocking bar can be quickly and smoothly rotated toward the return direction.

  Further, in the vehicle traffic breaker according to the present invention, the power transmission mechanism is interposed between the blocking rod and the output shaft, and only the rotation of the blocking rod in the return direction and the positive rotation of the output shaft are performed. It is preferable to further include a clutch mechanism for transmitting the transmission between the blocking bar and the output shaft.

Thereby, when the blocking bar rotates in the release direction, the rotation of the blocking bar is not transmitted to the output shaft of the electric motor by the action of the clutch mechanism. That is, since the blocking bar can freely rotate in the release direction without receiving a load on the output shaft, the blocking bar can be smoothly rotated in the release direction. In addition, since it is possible to prevent the impact applied from the vehicle to the blocking rod from being transmitted to the electric motor via the power transmission mechanism, it is possible to avoid damage to the electric motor at the time of collision.
On the other hand, when the output shaft is rotated forward by driving the motor, the forward rotation of the output shaft is transmitted to the blocking rod via the clutch mechanism, thereby rotating the blocking rod in the return direction. Can do.
Therefore, it is possible to quickly and smoothly return the blocking bar after the release operation while enabling a smooth releasing operation of the blocking bar.

  Furthermore, the vehicle traffic barrier according to the present invention further includes an arm that supports the blocking bar via the release shaft and rotates the blocking bar between the blocking position and the permission position. It is preferable that the electric motor is arranged in

  By arranging the electric motor on the arm, the configuration of the vehicle traffic barrier itself can be made compact. In addition, since the electric motor is arranged in the vicinity of the blocking rod, it is possible to avoid complication of the power transmission mechanism, and the forward rotation of the output shaft of the electric motor can be smoothly and reliably prevented with a simple configuration. Can be transmitted.

  According to the vehicle traffic breaker of the present invention, since the blocking bar can be rotated in the returning direction by driving the return drive unit, the blocking bar after the release operation can be returned quickly and smoothly. Become.

It is a front view showing a schematic structure of a vehicle traffic barrier according to the first embodiment. It is a top view showing the schematic structure of the vehicle traffic barrier according to the first embodiment. It is a front view showing a schematic structure of a vehicle traffic barrier according to the first embodiment. It is a top view showing the schematic structure of the vehicle traffic barrier according to the first embodiment. It is a vertical sectional view showing the internal structure of the support arm of the vehicle traffic barrier according to the first embodiment. It is a horizontal sectional view showing the internal structure of the support arm of the vehicle traffic barrier according to the first embodiment. It is a horizontal sectional view showing the internal structure of the support arm of the vehicle traffic barrier according to the first embodiment. It is a functional block diagram showing functional composition of a vehicle traffic barrier and peripheral equipment concerning a first embodiment. It is a flowchart which shows the flow of the process of the opening / closing operation | movement of the blocking rod which a lane server performs in the vehicle traffic breaker which concerns on 1st embodiment. It is a flowchart which shows the flow of the process of the return operation | movement of the blocking rod which a control part performs in the vehicle traffic breaker which concerns on 1st embodiment. It is a horizontal sectional view showing an internal structure of a support arm of a vehicle passage breaker when a ball catch is provided in the vehicle passage breaker according to the first embodiment instead of the latch device. It is a perspective view which shows schematic structure of the circuit breaker which concerns on 2nd embodiment. It is a perspective view which shows schematic structure of the circuit breaker which concerns on 2nd embodiment. It is the perspective view which looked at the circuit breaker shown in FIG. 12 from the vehicle advancing direction front side. It is a perspective view which shows the internal structure of the return drive part of 2nd embodiment. It is a top view which shows the internal structure of the return drive part of 2nd embodiment. It is a perspective view of the first gear and the second gear in the clutch mechanism of the second embodiment. It is a perspective view of a return motor, a first worm gear, a first rotation shaft, a second worm gear, a first spur gear, a second rotation shaft, and a first gear in the return drive unit of the second embodiment. It is a top view which shows the internal structure of the return drive part of 2nd embodiment. It is a perspective view of the arm main body in the support arm of a second embodiment, a release shaft, and the 2nd gear in the return drive part, the 2nd spur gear, and the 3rd spur gear. It is a top view which shows the internal structure of the return drive part of 2nd embodiment. It is a longitudinal cross-sectional view which shows the release state holding | maintenance part of 2nd embodiment. It is a longitudinal cross-sectional view which shows the non-release state holding | maintenance part of 2nd embodiment. It is a perspective view which shows the internal structure of the auxiliary | assistant return drive part of 2nd embodiment. It is a top view which shows the internal structure of the auxiliary | assistant return drive part of 2nd embodiment. It is a top view which shows the internal structure of the auxiliary | assistant return drive part of 2nd embodiment. It is a functional block diagram of the circuit breaker which concerns on embodiment of 2nd embodiment. It is a flowchart which shows the flow of a process of the opening / closing operation | movement of the blocking bar which the lane server of 2nd embodiment performs. It is a flowchart which shows the flow of a process of the return operation | movement of the prevention stick | rod which the control part of 2nd embodiment performs. It is a top view which shows the internal structure of the return drive part of 2nd embodiment. It is a perspective view which shows the internal structure of the auxiliary | assistant return drive part of 2nd embodiment. It is a top view which shows the internal structure of the return drive part of 2nd embodiment. It is a perspective view showing a schematic structure of a vehicle traffic barrier according to a third embodiment. It is a vertical sectional view showing the internal structure of the return drive part of the vehicle traffic barrier according to the third embodiment. It is a perspective view showing a schematic structure of a vehicle traffic barrier according to a fourth embodiment. It is a vertical sectional view showing the internal structure of the return drive part of the vehicle traffic barrier according to the fourth embodiment.

Hereinafter, a vehicle traffic breaker according to a first embodiment of the present invention (hereinafter simply referred to as a “breaker”) will be described in detail with reference to the drawings.
As shown in FIGS. 1 to 4, the breaker 10 includes a breaker body 11, a support arm 20 supported by the breaker body 11, and a blocking bar 30 supported by the support arm 20. Yes. Further, the circuit breaker 10 is provided with a release mechanism 40 (see FIG. 5), a return drive unit 60, and a control unit 90 (not shown in FIGS. 1 to 4, see FIG. 8).

  As shown in FIGS. 1 and 2, the breaker main body 11 is fixedly installed on the side of the vehicle traffic path R in the toll booth on the highway. The breaker main body 11 is provided with an opening / closing shaft 12 extending so as to protrude rearward in the vehicle traveling direction G. The opening / closing shaft 12 can be driven to rotate around a horizontal axis by an opening / closing motor 13 provided in the circuit breaker body 11. The opening / closing motor 13 is a so-called servo motor capable of arbitrarily controlling the rotation speed and rotation angle, and is configured to rotate forward and backward based on a command from the control unit 90. The location where the breaker body 11 is installed is not limited to the toll gate on the highway, and may be a toll gate in a parking lot, for example.

As shown in FIGS. 1 and 2, the support arm 20 includes an arm main body 21 and a release shaft 22.
The arm body 21 is fixedly supported by the opening / closing shaft 12, and with the rotation of the opening / closing shaft 12, the longitudinal direction of the arm body 21 is between a horizontal state parallel to the horizontal direction and a vertical state parallel to the vertical direction. Rotation about the axis of the opening / closing shaft 12 is possible within a range of 90 ° along the vertical plane.

  Further, the release shaft 22 is located on the distal end side of the arm body 21, that is, on the vehicle path R side of the arm body 21 when the support arm 20 is in a horizontal state as shown in FIGS. And is rotatable about an axis extending perpendicularly to the longitudinal direction of the arm body 21 and extending along the vertical plane. Accordingly, when the support arm 20 is in a horizontal state, the release shaft 22 can be rotated around the vertical axis, and when the support arm 20 is in a vertical state, the release shaft 22 is rotated around the horizontal axis. Can be rotated.

  The blocking bar 30 is fixedly supported on the release shaft 22 so as to extend in the diameter direction of the release shaft 22. When the support arm 20 is in a horizontal state, a portion of the blocking rod 30 on the side of the vehicle traffic path R viewed from the release shaft 22 is formed in a long shape to prevent the vehicle from traveling. The portion on the opposite side of the rod portion 31 across the release shaft 22 is a base portion 32 that comes into contact with the arm main body 21 of the support arm 20 from the rear side in the vehicle traveling direction G.

  In this blocking bar 30, as shown in FIG. 2, a state in which the extending direction of the blocking bar 30 is parallel to the longitudinal direction of the support arm 20 is in a non-released state, and as shown in FIG. A state in which the extending direction of the blocking bar 30 is orthogonal to the longitudinal direction of the support arm 20 is turned to the released state by turning 90 ° in the vehicle traveling direction G from the non-released state with the turning of the shaft 22. Hereinafter, the direction in which the blocking bar 30 rotates from the non-release state to the release state, that is, the direction in which the release operation is performed is referred to as a release direction T1, and conversely, the direction in which the block 30 rotates from the release state to the non-release state, The direction in which the return operation is performed is set as a return direction T2.

  Further, in the blocking bar 30, as shown in FIG. 1, the blocking arm 30 is in a substantially horizontal state because the support arm 20 is in a horizontal state and the blocking bar 30 is in a non-released state. A blocking position S is a state that extends in a direction substantially perpendicular to the vehicle traveling direction G and prevents the vehicle from traveling. Furthermore, as shown in FIG. 3, the support arm 20 is in a vertical state and the blocking rod 30 is in a non-released state, so that the blocking rod 30 stands up in the vertical direction and permits passage of the vehicle. Is the permitted position K.

  In the present embodiment, the support arm 20 rotates in the range of 90 ° with the rotation of the opening / closing shaft 12, so that the blocking rod 30 brought into the non-released state is moved between the blocking position S and the permission position K. It opens and closes between them. Hereinafter, an operation in which the support arm 20 rotates from the horizontal state to the vertical state is referred to as an opening operation, and an operation in which the support arm 20 rotates from the vertical state to the horizontal state is referred to as a closing operation.

  The release mechanism 40 keeps the blocking bar 30 in a non-released state at the normal time, that is, when the vehicle does not collide with the blocking bar 30, while the vehicle collides with the blocking bar 30 at the time of abnormality. In this case, the mechanism is a mechanism for causing the blocking rod 30 to perform a release operation, and includes a release spring 41, a torque limiter 50, and a latch mechanism 57 as shown in FIGS.

  The release spring 41 is a coil spring that urges the blocking bar 30 to rotate in the release direction T1 from the non-release state to the release state, and one end of the release spring 41 is provided in the arm body 21. And the other end is fixed to a second spring fixing portion 43 provided at the base end of the blocking bar 30. The release spring 41 is in an extended state when the blocking bar 30 is in a non-released state, and urges the blocking bar 30 to give a rotational moment in the release direction T1 with the release shaft 22 as a fulcrum. ing.

  The torque limiter 50 has a role of holding the blocking bar 30 in a non-released state against the rotational moment in the release direction T1 to the blocking bar 30 given by the bias of the release spring 41. 30, a locked portion 51 provided on the support arm 20, a locking portion 53 provided on the support arm 20, and a holding spring 55.

  The locked portion 51 is provided so as to protrude from a surface facing the front side in the vehicle traveling direction G in the base portion 32 of the blocking bar 30 in the non-released state. It is inserted into the arm body 21 from the side facing the side. Further, as shown in FIG. 6, a shaft portion 51 a that extends in the vertical direction when the support arm 20 is in a horizontal state is provided at the tip of the locked portion 51.

  The locking portion 53 is supported so as to be rotatable around a support shaft 54 provided in a position closer to the front side in the vehicle traveling direction G in the arm body 21. As a result, the tip of the locking portion 53 can be rotated along the longitudinal direction of the arm body 21 in a region on the rear side in the vehicle traveling direction G in the arm body 21.

  Furthermore, a hook groove 53 a for locking the shaft portion 51 a of the locked portion 51 is formed at the tip of the locking portion 53. The hook groove 53a is open at the front end of the locking portion 53 so as to face the rear side in the vehicle traveling direction G (the lower side in FIG. 6), and the surface facing the rear end side of the support arm 20 in the hook groove 53a. A ridge 53 b is formed in a convex shape toward the rear end side of the support arm 20.

  Thereby, when the front end of the locking portion 53 rotates toward the front end side of the support arm 20, the shaft portion 51a can be moved in and out of the hooking groove 53a, while the front end of the locking portion 53 is placed on the arm. When rotating toward the rear end side of the main body 21, the shaft portion 51a that has entered the hooking groove 53a cannot be removed from the hooking groove 53a.

  The holding spring 55 is a coil spring arranged in a stretched state at a position on the rear end side in the arm main body 21, and one end thereof is connected to the inner rear end of the arm main body 21 via a first spring support portion 55 a. On the other hand, the other end is connected to the tip of the locking portion 53 via a second spring support portion 55b. As a result, the holding spring 55 urges the front end of the locking portion 53 toward the rear end of the arm main body 21. The urging force of the holding spring 55 is set larger than the urging force of the release spring 41 in the non-release state.

  The latch mechanism 57 has a role of holding the blocking bar 30 in a released state. As shown in FIGS. 6 and 7, the latch mechanism 57 has a latch 58 a provided on the base 32 of the blocking bar 30 and capable of protruding and retracting. Device 58 and a latch hooking portion 59 provided on a surface facing the rear side in the vehicle traveling direction G at the tip of the support arm 20 and engaged with the latch 58a of the latch device 58 when the blocking bar 30 is in the released state. Has been.

  The latch device 58 is provided on a surface of the base portion 32 that faces the front side in the vehicle traveling direction G when the blocking bar 30 is in the non-release state, and the latch 58a of the latch device 58 projects toward the release shaft 22 side. It is supposed to be sunk. The latch 58a is urged in a protruding direction by an elastic body such as a spring (not shown), and is configured such that the latch 58a can be manually retracted by operating the operation knob 58b. . In addition, a solenoid (not shown) is accommodated inside the latch device 58, and a current is passed through the solenoid in response to a command from the control unit 90, so that the latch 58a moves backward against the bias of the elastic body. It has become.

Next, the return drive unit 60 will be described with reference to FIGS.
The return drive unit 60 includes a pulley 61, an idler pulley 62, a clamping pulley 63, a wire 66, a return motor (electric motor) 68, and a clutch mechanism 70. The pulley 61, the idler pulley 62, the clamping pulley 63, the wire 66, and the clutch mechanism 70 excluding the return motor 68 constitute the power transmission mechanism of this embodiment.

  The pulley 61 has a disk shape that is rotatable around an axis parallel to the release shaft 22, and is a first support portion provided so as to extend from the arm body 21 of the support arm 20 to the rear side in the vehicle traveling direction G. It is supported by 61a. The pulley 61 is provided with a pulley shaft 61 b that extends downward along the central axis of the pulley 61.

  The idler pulley 62 is a columnar member that is rotatable about an axis parallel to the release shaft 22, and is closer to the release shaft 22 than the pulley 61 from the arm body 21 of the support arm 20 to the vehicle traveling direction G. It is supported by a second support portion 62a provided so as to extend rearward. The diameter of the idler pulley 62 is set smaller than the diameter of the pulley 61.

  The sandwiching pulley 63 is configured by a large-diameter pulley 64 and a small-diameter pulley 65 that are rotatable around an axis parallel to the release shaft 22 and that are arranged so that their outer peripheral surfaces are close to each other. The clamping pulley 63 is supported by a third support portion 63a provided so as to extend from the arm body 21 of the support arm 20 to the rear side in the vehicle traveling direction G on the release shaft 22 side further than the idler pulley 62. Have

  The wire 66 is a linear member having a high tensile strength, such as a piano wire, and is wound around the outer peripheral surface of the pulley 61 so as to be able to be fed out. In the following, the rotation direction of the pulley 61 when the wire 66 is fed out is referred to as a feeding direction P1, and the rotation direction of the pulley 61 when the wire 66 is wound is referred to as a winding direction P2.

  The wire 66 fed from the pulley 61 is wound around the idler pulley 62 and is sandwiched between the large-diameter pulley 64 and the small-diameter pulley 65 of the sandwiching pulley 63. The end of the wire 66 extending through the idler pulley 62 and the sandwiching pulley 63 on the side opposite to the side wound around the pulley 61 is the vehicle traveling direction at the base end of the bar portion 31 of the blocking bar 30. G is fixed to the surface facing the rear side.

  The return motor 68 is fixed to the support arm 20 via a support mechanism (not shown) so that the extending direction of the output shaft 68 a coincides with the central axis of the pulley 61 below the pulley 61. The output shaft 68a of the return motor 68 is configured to be rotationally driven in one direction of forward rotation with at least the winding direction P2 of the pulley 61 as a forward rotation, and the winding is performed based on a command from the control unit 90. Rotate in direction P2.

  The clutch mechanism 70 is interposed between the pulley shaft 61b of the pulley 61 and the output shaft 68a of the return motor 68 so as to connect the pulley shaft 61b and the output shaft 68a. The clutch mechanism 70 is configured to transmit the rotation of the pulley 61 and the output shaft 68a in the winding direction P2 to each other.

  That is, when one of the pulley shaft 61b and the output shaft 68a rotates in the winding direction P2, the clutch mechanism 70 transmits the rotation to the other. Further, when one of the pulley shaft 61b and the output shaft 68a rotates in the feeding direction P1, the rotation is not transmitted to the other, and one is rotated independently from the other. Thereby, for example, when the pulley 61 rotates in the feeding direction P1, the pulley 61 rotates in the feeding direction P1 without receiving the interference of the output shaft 68a.

  Such a clutch mechanism 70 is provided between, for example, an outer ring connected to the output shaft 68a, an inner ring coaxially disposed inside the outer ring and connected to the pulley shaft 61b, and the outer ring and the inner ring. The sprag is configured to engage with both the inner peripheral surface of the outer ring and the outer peripheral surface of the inner ring by relative rotation in the winding direction P2 of the outer ring and the inner ring. Thus, only when one of the pulley 61 and the output shaft 68a rotates in the winding direction P2, the other rotates in conjunction with each other. In addition, the clutch mechanism 70 is not limited to the said structure, You may employ | adopt the thing of another structure, if it has the same function.

  Next, the control unit 90 will be described based on the functional configuration of the circuit breaker 10. FIG. 8 is a functional block diagram showing functional configurations of the circuit breaker 10 and peripheral devices. The controller 90 in the circuit breaker 10 is connected to the opening / closing motor 13, the return motor 68 of the return drive unit 60, and the latch device 58 of the latch mechanism 57.

  In addition, a lane server 130 to which a vehicle detector 131, a roadside antenna 132, and an operation unit 133 are connected as peripheral devices is provided outside the circuit breaker 10. The lane server 130 is connected to the control unit 90 in the circuit breaker 10, and sends a signal to the control unit 90 in accordance with inputs from the vehicle detector 131, the roadside antenna 132, and the operation unit 133.

  The vehicle detector 131 includes a plurality of pairs of optical sensors installed on both sides of the vehicle traffic path R, for example, and is configured to detect entry and exit of the vehicle to the toll gate. That is, the vehicle detector 131 detects, for example, the entry of the vehicle to the toll gate by a first optical sensor installed on the entrance side of the toll gate (the rear side in the vehicle traveling direction G of the circuit breaker 10). The exit of the vehicle from the toll gate is detected by a second optical sensor installed on the exit side of the toll gate (front side in the vehicle traveling direction G of the circuit breaker 10). As a result, the vehicle detector 131 outputs a signal based on the entry and exit of the vehicle to the lane server 130.

The roadside antenna 132 is installed, for example, on the rear side of the vehicle traveling direction G from the circuit breaker 10, and when the vehicle passes through the toll gate, it transmits and receives necessary information to and from the vehicle-mounted device mounted on the vehicle. A signal based on transmission / reception of information is output to the lane server 130.
The lane server 130 then sends a vehicle passage permission command and a vehicle exit detection signal to the control unit 90 based on the input of signals from the vehicle detector 131 and the roadside antenna 132. The control unit 90 causes the blocking bar 30 to perform an opening operation by driving the opening / closing motor 13 to rotate forward based on the vehicle passage permission command. Further, the control unit 90 causes the blocking rod 30 after the opening operation to perform the closing operation by driving the opening / closing motor 13 to rotate in reverse based on the vehicle exit detection signal.

  The operation unit 133 is installed in a room of a tollgate in the vicinity of the toll booth. For example, when the “open button” or the “close button” is pressed, the operation bar 133 is blocked against the lane server 130 by the blocking bar 30. Outputs the open / close request. The lane server 130 sends an opening / closing command to the control unit 90 based on the opening / closing request, and the control unit 90 rotationally drives the opening / closing motor 13 based on the opening / closing command to perform the opening / closing operation of the blocking rod 30. Do. The operation unit 133 may be installed in a monitoring center or the like located away from the toll gate.

  Further, the operation unit 133 is also connected to the control unit 90, and sends a release return command for the blocking bar 30 to the control unit 90 based on, for example, pressing a “release return button”. When this release return command is input, the control unit 90 releases the lock state of the latch device 58 and then drives the return motor 68.

  Next, the effect | action of the circuit breaker 10 of this embodiment is demonstrated. When the vehicle has not entered the vehicle traffic path R and the breaker 10 is in the standby state, the blocking bar 30 is brought into a non-released state as shown in FIGS. 1 and 2, and the blocking position is the home position. S. In this non-released state, as shown in FIG. 6, the holding spring 55 urges the locking portion 53 toward the rear end side of the support arm 20, whereby the shaft portion 51 a that has entered the hooking groove 53 a. Is prevented from escaping from the hook groove 53a, thereby preventing the blocking rod 30 from rotating in the release direction T1.

  Further, since the urging force of the holding spring 55 is set to be larger than the urging force of the release spring 41 in the non-release state, the shaft portion 51a escapes from the hook groove 53a by the rotational moment due to the urging of the release spring 41. Thus, the blocking rod 30 does not rotate in the release direction T1.

  When the blocking bar 30 is in a non-released state as in the standby state, the proximal end of the bar 31 of the blocking bar 30 to which the end of the wire 66 is fixed is closest to the clamping pulley 63. For this reason, the length of the wire 66 fed out from the pulley 61 is the shortest.

  First, the processing procedure of the opening / closing operation of the blocking bar 30 when the vehicle enters the toll gate having the circuit breaker 10 in the standby state as described above will be described. The opening / closing operation of the blocking rod 30 is performed under the control of the lane server 130. FIG. 9 is a flowchart showing a process flow of the opening / closing operation of the blocking bar 30 executed by the lane server 130.

  First, the lane server 130 determines whether or not the vehicle detector 131 has detected the entry of the vehicle to the toll gate, that is, whether or not the ON signal (vehicle detection signal) from the vehicle detector 131 has been input. (S11). As a result, when it is determined that an OFF signal is input from the vehicle detector 131 (S11: No), the lane server 130 waits until an ON signal is input from the vehicle detector 131. On the other hand, when it is determined that an ON signal is input from the vehicle detector 131 (S11: Yes), the lane server 130 sends a reception command for in-vehicle device information to the roadside antenna 132 (S12), and the roadside antenna 132 is output. Starts communication with the vehicle-mounted device mounted on the vehicle based on this signal.

  Next, the lane server 130 determines whether the vehicle about to pass through the toll gate is a normal vehicle or an abnormal vehicle based on the vehicle-mounted device information received by the roadside antenna 132 (S13). As a result, when it is determined that the vehicle is an abnormal vehicle (S13: No), the lane server 130 performs an abnormal process (S14) and maintains the blocking rod 30 at the blocking position S without performing the opening operation of the blocking rod 30. . Thereby, the process of the lane server 130 at the time of determining that it is an abnormal vehicle in S13 is complete | finished.

  On the other hand, when it is determined in S13 that the vehicle is a normal vehicle (S13: Yes), the lane server 130 sends a vehicle passage permission command to the control unit 90. Accordingly, the control unit 90 rotates the output shaft of the opening / closing motor 13 in the forward direction to rotate the support arm 20 and the blocking bar 30 from the blocking position S to the permission position K (S15). Thereby, the circuit breaker 10 will be in the state which permitted the passage of the vehicle.

  After S15, the lane server 130 determines whether or not the vehicle has detected exit from the toll gate, that is, whether or not an OFF signal has been input from the vehicle detector 131 as a result of completion of vehicle detection by the vehicle detector 131. Is determined (S16). If it is determined that the ON signal is still input from the vehicle detector 131 (S16: No), the lane server 130 waits until an OFF signal is input from the vehicle detector 131. On the other hand, when it is determined that an OFF signal is input from the vehicle detector 131 (S16: Yes), the lane server 130 sends a vehicle exit detection signal to the control unit 90. Based on the vehicle exit detection signal, the control unit 90 rotates the output shaft of the opening / closing motor 13 in the reverse direction to rotate the support arm 20 and the blocking bar 30 from the permission position K to the blocking position S (S17). Thereby, the circuit breaker 10 is in a state where the passage of the vehicle is blocked, and the processing of the lane server 130 when determining that the vehicle is a normal vehicle in S13 ends.

  Here, as described above, when the lane server 130 determines that the vehicle is abnormal and performs abnormality processing, the blocking rod 30 is maintained at the blocking position S, so that the vehicle collides with the blocking rod 30. There is a case. Further, even when the lane server 130 determines that the vehicle is a normal vehicle and causes the blocking bar 30 to perform an opening operation, the vehicle may collide with the blocking bar 30 if the approach speed of the vehicle is too fast. At this time, in this embodiment, the release operation of the blocking rod 30 is performed.

  That is, when a vehicle traveling in the vehicle traveling direction G collides with the bar portion 31 of the blocking bar 30, the impact force acts as a rotational moment that rotates the blocking bar 30 in the release direction T1. When the shaft portion 51a of the locked portion 51 climbs over the peak portion 53b against the urging force of the holding spring 55 due to the rotational moment, and the shaft portion 51a escapes from the hooking groove 53a, as shown in FIG. The holding of the blocking bar 30 in the non-released state is released, and the blocking bar 30 is rotated in the release direction T1 according to the impact force and the rotational moment due to the bias of the release spring 41.

  When the blocking bar 30 rotates in the release direction T1 in this way, the wire 66 is sequentially drawn out from the pulley 61 by the wire 66 being pulled by the blocking bar 30. At this time, since the pulley 61 rotates in the feeding direction P1, the rotation of the pulley 61 in the feeding direction P1 is not transmitted to the output shaft 68a by the action of the clutch mechanism 70, that is, the release of the blocking rod 30. The rotation in the direction T1 is not transmitted to the output shaft 68a.

  Further, when the blocking bar 30 rotates in the release direction T1 in this manner, the tip of the latch 58a comes into contact with the latch hook 59 in the middle of the rotation of the blocking bar 30 in the release direction T1, thereby latching. 58a itself retreats, and the latch 58a gets over the latch hook 59. Then, when the blocking bar 30 is in the released state, as shown in FIG. 7, the latch 58 a can come into contact with the surface of the latch hook 59 that faces the vehicle passage R side. Is prevented from rotating in the return direction T2, and the released state of the blocking bar 30 is maintained. This completes the release operation.

  Next, when the blocking bar 30 is in the released state after the release operation is completed, the returning operation for rotating the blocking bar 30 in the return direction T2 to return to the non-released state will be described. This return operation is performed on the basis of a release return command that is sent, for example, by an operation of the operation unit 133 by a staff at a toll gate when the blocking rod 30 after the release operation is in the release state. FIG. 10 is a flowchart showing a flow of processing of the return operation of the blocking rod 30 executed by the control unit 90.

  First, the control unit 90 determines whether an ON signal is input from the operation unit 133, that is, whether a release return command is input from the operation unit 133 (S21). As a result, when it is determined that an OFF signal is input from the operation unit 133 (S21: No), the process waits until an ON signal is input from the operation unit 133.

  When the control unit 90 determines that an ON signal has been input from the operation unit 133 (S21: Yes), the control unit 90 sends a command to flow current to the solenoid in the latch device 58, thereby causing the latch 58a to retract. Thus, the locked state of the latch device 58 is released (S22). As a result, the holding state of the blocking bar 30 in the released state is released, and the blocking bar 30 becomes rotatable in the return direction T2.

  Next, the control unit 90 sends a signal to the return motor 68 and causes the output shaft 68a of the return motor 68 to rotate forward in the winding direction P2 (S23). As a result, the forward rotation of the output shaft 68a in the winding direction P2 is transmitted to the pulley shaft 61b via the clutch mechanism 70, and the pulley 61 rotates in the winding direction P2. Then, when the pulley 61 winds up the wire 66, the length of the wire 66 drawn out from the pulley 61 is sequentially shortened, and when the blocking bar 30 is pulled by the wire 66, the blocking bar 30 is returned to the return direction. Rotate to T2. As a result, the blocking bar 30 automatically returns to the non-released state, and the returning operation of the blocking bar 30 is completed.

  As described above, according to the circuit breaker 10 of the present embodiment, when the blocking rod 30 rotates in the release direction T1 due to the collision of the vehicle with the blocking rod 30, the return drive unit 60 is driven. Thus, the blocking rod 30 can be rotated in the return direction T2 to return to the non-release state.

In the return drive unit 60, the return motor 68 is driven to rotate the pulley 61 in the winding direction P <b> 2 to wind the wire 66, and thereby the return rod 30 is pulled by the wire 66 to return. Due to the configuration of rotating in the direction T2, the blocking rod 30 can be smoothly and reliably returned to the non-released state. Therefore, for example, it is not necessary for the toll gate staff to approach the location of the vehicle traffic breaker and manually return the blocking bar to the non-released state, resulting in a vehicle traffic jam on the vehicle traffic path R. You can avoid that.

  Further, when the blocking bar 30 performs the release operation, the pulley 61 that rotates in the feeding direction P1 rotates independently of the output shaft 68a by the action of the clutch mechanism 70, and therefore receives the load of the output shaft 68a. There is no. That is, the pulley 61 can be freely rotated in the feed-out direction P1 without receiving a load on the output shaft 68a, so that the blocking bar 30 can be smoothly rotated in the release direction T1. Furthermore, since it is possible to prevent the impact applied to the blocking rod 30 from the vehicle from being transmitted to the return motor 68 via the wire 66 and the pulley 61, it is possible to avoid damage to the return motor 68 at the time of collision. It becomes.

On the other hand, when the electric motor 68 is driven and the output shaft 68a is rotated forward in the winding direction P2, the rotation of the output shaft 68a is transmitted to the pulley 61 via the clutch mechanism 70, thereby preventing the blocking rod 30. Can be reliably rotated in the return direction T2.
That is, since the clutch mechanism 70 transmits only the rotation of the blocking rod 30 in the return direction T2 and the positive rotation of the output shaft 68a to each other between the blocking rod 30 and the output shaft 68a, the blocking rod 30 is smoothly released. It is possible to quickly and smoothly return the blocking bar 30 after the release operation while enabling the operation.

  In the embodiment, the control unit 90 releases the locked state of the latch mechanism 57 in the released state of the blocking bar 30 by sending a signal to the latch device 58. The latch 58a may be retracted by operating the knob 58b to release the lock of the latch mechanism 57.

  Further, instead of the latch mechanism 57, for example, a configuration in which a ball catch 100 is provided as shown in FIG. The ball catch 100 includes a male member 101 provided on the bar portion 31 of the blocking bar 30 and a female member 102 provided on a side surface of the circuit breaker body 11 facing the vehicle passage R side. When the blocking bar 30 rotates from the non-released state to the released state, the convex portion 101a of the male member 101 on the blocking rod 30 side enters the concave portion 102a of the female member 102.

  At this time, the pair of balls 102b and 102b urged from the side surface of the concave portion 102a presses the convex portion 101a so that the male member 101 and the female member 102 are engaged. Accordingly, the blocking bar 30 is fixed in the released state, and the blocking bar 30 in the released state can be prevented from being inadvertently rotated.

  When the blocking rod 30 is rotated from the released state to the non-released state, the convex portion 101a is placed in the concave portion 102a against the urging force of the balls 102b and 102b by the rotational force of the blocking rod 30 in the return direction T2. The engagement state between the male member 101 and the female member 102 is released by escaping from the above. Therefore, since the blocking state of the blocking bar 30 can be released without depending on the command of the control unit 90, the configuration of the breaker 10 itself can be simplified.

Next, a circuit breaker according to a second embodiment of the present invention will be described in detail with reference to the drawings.
As shown in FIGS. 12 to 14, the circuit breaker 410 according to the second embodiment includes a circuit breaker body 411, a support arm 420 supported by the circuit breaker body 411, and a blocking bar supported by the support arm 420. 430. Further, the circuit breaker 410 includes a return drive unit 440, a release state holding unit 460, a non-release state holding unit 470, an auxiliary return drive unit 480, and a control unit 490 (not shown in FIGS. 27).

  The circuit breaker body 411 is fixedly installed on the side of the vehicle traffic path R in the toll booth on the highway. An opening / closing shaft 412 (see FIGS. 13 and 14) is provided on a surface of the circuit breaker body 411 facing the vehicle traveling direction G rear side. The opening / closing shaft 412 can be driven to rotate about a horizontal axis along the vehicle traveling direction G by an opening / closing motor 413 (not shown in FIGS. 12 to 14, see FIG. 27) provided in the circuit breaker body 411. ing. The opening / closing motor 413 is a so-called servo motor that can arbitrarily control the rotation speed and rotation angle, and is connected to a control unit 490 described later, and is configured to rotate forward and backward based on a command from the control unit 490. Has been. The location where the breaker body 411 is installed is not limited to the toll gate on the highway, and may be a toll gate in a parking lot, for example.

The support arm 420 includes an arm main body 421 and a release shaft 422.
The arm body 421 is fixedly supported by the opening / closing shaft 412 so that the diameter direction of the opening / closing shaft 412 is the longitudinal direction. The arm body 421 is rotated by 90 ° along the vertical plane between the horizontal state in which the longitudinal direction of the arm body 421 is parallel to the horizontal direction and the vertical state in parallel to the vertical direction as the opening / closing shaft 412 rotates. In this range, it can be rotated around the axis of the opening / closing shaft 412.

  The arm main body 421 includes an upper plate portion 421a and a lower plate portion 421b that face each other in the vertical direction in a horizontal state, and an intermediate plate portion 421c that connects the upper plate portion 421a and the lower plate portion 421b. I have. That is, the arm main body 421 has a substantially U-shaped cross section perpendicular to the longitudinal direction. Further, in the U-shaped cross section, an intermediate plate portion 421c that is one side connecting two opposite sides is fixedly supported by the opening / closing shaft 412.

  As shown in FIG. 14, the release shaft 422 is the tip of the arm main body 421, that is, the end of the arm main body 421 on the vehicle passage R side when the support arm 420 is in the horizontal state (the left side in FIGS. 12 and 13). ) Is supported. The release shaft 422 is rotatable about an axis that is orthogonal to the longitudinal direction of the arm body 421 and extends along the vertical plane. Thus, when the support arm 420 is in a horizontal state, the release shaft 422 can be rotated around the vertical axis.

The blocking bar 430 is fixedly supported by the release shaft 422 so as to extend in the diameter direction of the release shaft 422. When the support arm 420 is in a horizontal state, a portion of the blocking rod 430 on the side of the vehicle passage R viewed from the release shaft 422 is a rod portion 431 that has a long shape and blocks the vehicle from traveling. ing. Further, a portion of the blocking bar 430 on the opposite side of the bar portion 431 across the release shaft 422 is a base portion 432 that can be stored inside the U-shaped cross section of the arm body 421.
Such a blocking bar 430 can be rotated around the axis of the release shaft 422 as the release shaft 422 rotates.

In the blocking bar 430, as shown in FIGS. 12 and 14, the extending direction of the blocking bar 430 is parallel to the longitudinal direction of the support arm 420, that is, the blocking bar 430 extends in the radial direction of the opening / closing shaft 412. The extended state is a non-release state.
Further, as shown in FIG. 13, the blocking bar 430 rotates 90 ° from the non-released state to the vehicle traveling direction G as the release shaft 422 rotates, and the extending direction of the blocking bar 30 is the support arm 420. A state in which the blocking bar 430 extends in parallel with the opening / closing shaft 412 and the vehicle traveling direction G is a released state.
Hereinafter, the direction in which the blocking bar 430 rotates from the non-release state to the release state, that is, the direction in which the release operation is performed is referred to as a release direction T1, and conversely, the direction in which the block 430 rotates from the release state to the non-release state, The direction in which the return operation is performed is set as a return direction T2.

  In the blocking bar 430, as shown in FIG. 12, the blocking arm 430 is in a substantially horizontal state because the support arm 420 is in a horizontal state and the blocking bar 430 is in a non-released state. At the same time, the blocking position S is a state that extends in a direction substantially perpendicular to the vehicle traveling direction G and prevents the vehicle from traveling. In addition, when the support arm 420 is in the vertical state and the blocking bar 430 is in the non-released state, the state where the blocking bar 430 stands up in the vertical direction and allows the vehicle to pass is set as the permission position K. Yes.

  In the present embodiment, the support arm 420 rotates in the range of 90 ° as the opening / closing shaft 412 rotates, so that the non-released blocking rod 430 is moved between the blocking position S and the permission position K. It opens and closes between them. Hereinafter, an operation in which the support arm 420 rotates from the horizontal state to the vertical state is referred to as an opening operation, and an operation in which the support arm 420 rotates from the vertical state to the horizontal state is referred to as a closing operation.

Next, the configuration of the return drive unit 440 will be described.
The return drive unit 440 is a mechanism for rotating the blocking bar 430 rotated in the release direction T1 in the return direction T2 and returning it to the non-release state, as shown in FIGS. The support arm 420 is integrally fixed to the lower part. As shown in FIGS. 15 to 18, the return drive unit 440 includes a return motor (electric motor) 441 housed in a return drive unit main body 440 a having a housing shape, and forward rotation of the return motor 441. A power transmission mechanism 442 for transmitting to the release shaft 422 and a state detection means 455 (not shown in FIG. 15) for detecting the non-release state or release state of the blocking bar 430 are provided.

  The return motor 441 is a so-called servo motor that can arbitrarily control the rotation speed and the rotation angle, and the output shaft 441 a can rotate forward and backward based on a command from the control unit 490.

  The power transmission mechanism 442 includes a first worm gear 443, a first rotating shaft 444, a second worm gear 445, a first spur gear 446, a second rotating shaft 447, a clutch mechanism 448, a second spur gear 451, and the like. And a third spur gear 452.

As shown in FIGS. 15 to 18, the first worm gear 443 is fixed to the tip of the output shaft 441 a coaxially with the output shaft 441 a, and a male screw that twists around the axis is formed on the outer peripheral surface thereof. ing.
The first rotating shaft 444 is an axis extending in the vertical direction of the return drive unit main body 440a when the support arm 420 is in a horizontal state (hereinafter simply referred to as the vertical direction in the description of the return drive unit 440). For example, it is provided so as to be rotatable about an axis via a bearing (not shown) arranged in the return drive unit main body 440a.

  The second worm gear 445 is a substantially disk-shaped member that is coaxially fixed to the first rotation shaft, and rotates integrally with the first rotation shaft 444. Gear teeth are formed on the outer peripheral surface of the second worm gear 445 so as to be screwed with the male screw of the first worm gear 443, whereby the first worm gear 443 and the second worm gear 445 are interlocked with each other around their respective axes. It is designed to rotate.

The first spur gear 446 is a substantially disk-shaped gear fixed coaxially to the first rotating shaft 444, and gear teeth are formed on the outer peripheral surface thereof. The first spur gear 446 is integrally fixed to the upper portion of the second worm gear 445, and thereby rotates around the axis line in conjunction with the second worm gear 445 and the first rotating shaft 444.
The second rotation shaft 447 is a shaft that extends in the vertical direction in parallel with the first rotation shaft 444, and can rotate around the axis via a bearing (not shown) disposed in the return drive unit main body 440a, for example. Is provided.

The clutch mechanism 448 includes a first gear 449 and a second gear 450 that are arranged coaxially with respect to the second rotation shaft 447.
The first gear 449 has a substantially disk shape that is coaxially and integrally fixed to the second rotation shaft 447, and is configured to rotate about the axis together with the second rotation shaft 447. Gear teeth are formed on the outer peripheral surface of the first gear 449, and the gear teeth mesh with the gear teeth of the first spur gear 446. As a result, the first gear 449 and the first spur gear 446 can be rotated in conjunction with each other around their respective axes.

  On the upper surface of the first gear 449, as shown in FIG. 17A, a pair of claw portions 449a having point symmetry of 180 ° about the axis so as to sandwich the axis of the first gear 449. , 449a. Each of the claw portions 449a and 449a has a cylindrical shape extending in parallel with the axis of the first gear 449.

As shown in FIGS. 15 and 16, the second gear 450 has a disk shape arranged so as to be relatively rotatable about the axis with respect to the second rotation shaft 447, and overlaps the upper portion of the first gear 449. Is arranged.
As shown in FIG. 17A, the second gear 450 is formed with a pair of grooves 450 a and 450 a that penetrate in the thickness direction of the second gear 450. These groove portions 450a, 450a have an arc shape extending around the axis of the second gear 450, and are arranged so as to be 180 ° point-symmetric about the axis so as to sandwich the axis of the second gear 450. Has been.

  As shown in FIG. 17B, a pair of claw portions 449a and 449b of the first gear 449 are inserted into the grooves 450a and 450a of the second gear 450 in a one-to-one relationship. Thereby, the first gear 449 and the second gear 450 can be relatively rotated around the axis line in accordance with the allowable movement range of the claw portions 449a and 449a in the groove portions 450a and 450a.

  The second spur gear 451 is a gear that is coaxially and relatively rotatable with respect to the second rotation shaft 447 and is integrally fixed to the upper portion of the second gear 450 in the support arm 420 in a horizontal state. Yes. As a result, the second spur gear 451 rotates integrally with the second gear 450. Further, gear teeth are formed on the outer peripheral surface of the second spur gear 451.

  The third spur gear 452 is a gear provided coaxially and integrally with the release shaft 422 below the release shaft 422 provided on the support arm 420, and can rotate in conjunction with the release shaft 422. It is said that. Further, gear teeth are formed on the outer peripheral surface of the third spur gear 452, and the gear teeth mesh with the gear teeth of the second spur gear 451. As a result, the second spur gear 451 and the third spur gear 452 rotate in conjunction with each other around their respective axes.

  Here, when the output shaft 441a of the return motor 441 is rotated forward according to a command from the control unit 490, the forward rotation of the output shaft 441a is caused by the first worm gear 443 and the second worm gear in the power transmission mechanism 442 as shown in FIG. 445 and the first spur gear 446 are transmitted to the first gear 449 of the clutch mechanism 448. As a result, the first gear 449 and the claw portions 449a and 449a rotate 90 ° clockwise as shown in FIG. 19 from the initial position shown in FIG. Hereinafter, such an operation of the first gear 449 and the claw portions 449a and 449a is referred to as a normal rotation operation.

On the other hand, after the first gears 449 and 449 and the claw portions 449a and 449a are normally rotated from the initial positions, when the output shaft 441a of the return motor 441 is reversely rotated by a command from the control unit 490, the output shaft 441a is similar to the above. Is transmitted to the first gear 449 of the clutch mechanism 448 via the first worm gear 443, the second worm gear 445, and the first spur gear 446 in the power transmission mechanism 442. As a result, the first gear 449 and the claw portions 449a and 449a rotate 90 degrees counterclockwise in FIG. 19, that is, in the opposite direction to the forward rotation operation, and return to the initial position. Hereinafter, the operation of the first gear 449 and the claw portions 449a and 449a is referred to as reverse rotation operation.
As described above, the first gear 449 and the claw portions 449a and 449a reciprocately rotate in an angle range of 90 ° in accordance with the forward / reverse rotation of the output shaft 441a of the return motor 441.

Further, when the blocking bar 430 performs the release operation and changes from the non-release state to the release state, as shown in FIG. 20, the rotation in the release direction T1 of the release shaft 422 associated with the release operation causes the power transmission mechanism 442 to This is transmitted to the second gear 450 via the three spur gears 452 and the second spur gear 451. As a result, the second gear 450 rotates 90 ° counterclockwise from the initial position shown in FIG. 16 as shown in FIG. Hereinafter, the operation of the second gear 450 is referred to as a release interlocking operation.
After the second gear 450 performs the release interlocking operation, as shown in FIG. 21, the claw portions 449a and 449a at the initial position in the first gear 449 are the ends of the grooves 450a and 450a on the clockwise front side in FIG. It abuts on the abutting end portion 450b to be a part.

On the other hand, when the second gear 450 after the release interlocking operation is rotated 90 ° opposite to the release interlocking operation, the rotation is released via the second spur gear 451 and the third spur gear 452 in the power transmission mechanism 442. Is transmitted to. As a result, the release shaft 422 rotates in the return direction T2. Along with this, the blocking bar 430 returns from the released state to the non-released state. Hereinafter, the operation of the second gear 450 is referred to as a return interlocking operation.
As described above, the second gear 450 and the blocking rod 430 are configured to interlock with each other, that is, the release interlocking operation of the second gear 450 and the releasing operation of the blocking rod 430 correspond to each other. The two gears 450 are interlocked with each other so that the return interlocking operation of the two gears 450 corresponds to the returning operation of the blocking bar 430.

The state detection unit 455 includes a detected disk 456 and a disk detection sensor 457.
The detected disk 456 is a substantially disk-shaped member as shown in FIGS. 16, 19, and 21, and is coaxially and integrally fixed to the upper surface of the second gear 450 in the clutch mechanism 448. The detected disk 456 has an outer diameter larger than the outer diameter of the second gear 450, and further includes a first slit 456a and a first slit 456a formed so as to be cut out radially inward from the outer peripheral edge. Two slits 456b are provided. The first slit 456a and the second slit 456b are arranged at an interval of 90 ° in the circumferential direction of the detected disk 456.

  The disk detection sensor 457 is a sensor held on the inner wall of the return drive unit main body 440a. For example, a distance sensor that can measure the distance to an object by irradiating a laser is employed. In this embodiment, the disk detection sensor 457 irradiates the laser along the vertical direction of the support arm 420 that is in a horizontal state with respect to the outer periphery of the detected disk 456. Thereby, according to the rotation angle of the detected disk 456, a case where the first slit 456a or the second slit 456b exists in the laser irradiation area and a case where the detected disk 456 exists in the irradiation area are detected. It is supposed to be.

  As shown in FIGS. 16 and 19, such a disk detection sensor 457 is provided in the first slit 456a when the blocking bar 430 is in a non-released state and the second gear 450 is in the initial position. In other words, the first slit 456a is located in the laser irradiation region of the disk detection sensor 457. In this case, the state detection unit 455 recognizes that the blocking bar 430 is in a non-release state.

  Then, as shown in FIG. 21, when the second gear 450 performs the release interlocking operation, the disk detection sensor 457 fixed to the second gear 450 is also rotated along with this, so that the disk detection sensor 457 rotates. The second slit 456b exists in the laser irradiation region of the sensor 457. As described above, when the first slit 456a is initially positioned in the laser irradiation region of the disk detection sensor 457, the detection disk 456 rotates, so that the object positioned in the laser irradiation region becomes the detection disk 456. As such, when the second slit 456b is changed, the state detecting unit 455 recognizes that the blocking bar 430 has changed to the released state.

Further, when the second gear 450 performs the return interlocking operation, the disk detection sensor 457 fixed to the second gear 450 is also rotated along with this, so that the laser detection area of the disk detection sensor 457 is changed. There will be a first slit 456a. Thus, when the second slit 456b is initially positioned in the laser irradiation region of the disk detection sensor 457, the detection disk 456 rotates, so that the object positioned in the laser irradiation region becomes the detection disk 456. As such, when the first slit 456a is changed, the state detecting unit 455 recognizes that the blocking bar 430 has changed to the released state.
As described above, the state detection unit 455 detects whether the blocking bar 430 is in a non-release state or a release state.

Next, the configuration of the release state holding unit 460 will be described.
The release state holding portion 460 is a mechanism for holding the blocking bar 430 in the release state, and is provided on the upper surface of the tip of the support arm 420 in a horizontal state as shown in FIGS. In the description of the released state holding unit 460, the vertical direction of the support arm 420 in the horizontal state is simply referred to as the vertical direction.

  As shown in detail in FIG. 12, the release state holding portion 460 is formed with respect to a holding portion main body 461 that is fixed to the upper surface of the support arm 420 in a horizontal state and a blocking bar 430 in the released state. An urging latching portion 462 that is latched by the urging force, and an unlocking portion that unlocks the urging latching portion 462 from the blocking rod 430 against the urging force of the urging latching portion 462. 465.

The biasing locking portion 462 includes a slide bar 463 and a biasing member accommodating portion 464.
The slide bar 463 has a bar shape extending in the vertical direction, and is provided to be slidable over a predetermined range in the vertical direction so as to penetrate the holding portion main body 461. At the lower end of the slide bar 463, a locking end 463a that can be engaged with the blocking bar 430 in the released state is provided. The locking end 463a engages with the blocking bar 430 when the slide bar 463 is in the lowest position. In addition, a flange portion 463b formed so that the outer peripheral surface of the slide bar 463 is enlarged by one step is provided at a substantially central portion in the vertical direction of the slide bar 463.

The biasing member accommodating portion 464 is provided so as to be fitted on the slide bar 463 in the holding portion main body 461. The urging member accommodating portion 464 allows the slide bar 463 to move in the vertical direction, that is, the slide bar 463 is not slid in the vertical direction by the urging member accommodating portion 464 in this direction. Relative movement is possible. In addition, an urging member (not shown) such as a coil spring that urges the slide bar 463 downward is accommodated in the urging member accommodating portion 464. As long as no external force is applied to the slide bar 463 by the biasing of the biasing member, the slide bar 463 is positioned at the lowest position.
The slide bar 463 positioned at the lowermost position by the biasing member of the biasing member accommodating portion 464 is in a state in which the blocking bar 430 is released when the locking end 463a of the slide bar 463 is locked to the blocking bar 430. Hold on.

The lock release portion 465 includes a release motor 466, a screw member 467, a ball nut 468, and a bracket 469.
The release motor 466 is disposed in the holding portion main body 461 so that the output shaft faces downward. A motor side gear 466a having gear teeth formed on the outer peripheral surface is coaxially and integrally fixed to the output shaft.

  The screw member 467 is disposed so as to extend in the vertical direction in the holding portion main body 461, and a male screw that is twisted in the axial direction is formed on the outer peripheral surface thereof. A screw member side gear 467a having gear teeth formed on the outer peripheral surface thereof is coaxially and integrally fixed to the lower end of the screw member 467. The screw member side gear 467a meshes with the motor side gear 466a, whereby the screw member 467 rotates in conjunction with the rotation of the release motor 466.

  The ball nut 468 is a cylindrical member that is externally fitted to the screw member 467, and a female screw that engages with the male screw of the screw member 467 is formed on the inner peripheral side thereof. The ball nut 468 is movable in the extending direction of the screw member 467, that is, in the vertical direction as the screw member 467 rotates. The screw member 467 and the ball nut 468 constitute a ball screw mechanism that converts the rotation of the screw member 467 around the axis into the linear movement of the ball nut 468 in the vertical direction.

One end of the bracket 469 is fixed to a ball nut 468, and is configured to move up and down in conjunction with the movement of the ball nut 468. The other end of the bracket extends toward the slide bar 463, and the slide bar 463 passes through the portion on the other end side so as to be relatively movable in the vertical direction.
Here, the bracket 469 is in contact with the flange portion 463b of the slide bar 463 from below. As a result, when the bracket 469 moves upward, the slide bar 463 is lifted and moved upward. By this operation, the latching end 463a of the slide bar 463 is unlocked from the blocking bar 430.

Next, the configuration of the non-release state holding unit 470 will be described.
The non-release state holding part 470 is a mechanism for holding the blocking bar 430 in the non-release state, and as shown in FIGS. 12 to 14 and 18, a pair of upper and lower is provided on the arm body 421 of the support arm 420. It has been.
As shown in detail in FIG. 23, these non-release state holding portions 470 and 470 are provided with biasing protrusions provided on the upper plate portion 421a and the lower plate portion 421b of the arm main body 421 via nuts 471 and bolts 472, respectively. 473. The urging protrusions 473 urge the upper plate portion 421a and the lower plate portion 421b from the outside in the vertical direction of the support arm 420 toward the inside. When the blocking bar 430 is in a non-released state and is housed in the support arm 420, the biasing protrusion 473 is formed in recesses 432a and 432b formed on the upper and lower surfaces of the base 432 of the blocking bar 430, respectively. Engage each.

  The non-release state holding portion 470 is in a state where the urging protrusion 473 protrudes to the inside of the arm body 421 when the blocking bar 430 is in the release state. When the blocking bar 430 rotates in the return direction T2 and performs the return operation, the biasing protrusion 473 comes into contact with the base portion 432 of the blocking bar 430 during the return operation. When the blocking bar 430 is further rotated in the return direction T2 in this state, the biasing protrusion 473 is retracted by the pressing force applied from the blocking bar 430 to the biasing protrusion 473. Further, when the blocking bar 430 is in a non-released state, the biasing protrusion 473 protrudes according to the biasing force with respect to the recesses 432a and 432b in the base 432 of the blocking bar 430. As a result, the biasing protrusion 473 engages with the recesses 432a and 432b, and the blocking bar 430 is held in a non-released state.

  On the other hand, when the blocking bar 430 performs the release operation from the non-released state, the biasing protrusion 473 follows the inclination of the recesses 432a and 432b of the blocking bar 430 when rotating in the release direction of the base 432 of the blocking bar 430. fall back. That is, a pressing force due to the rotation of the base portion 432 is applied to the biasing protrusion 473, whereby the biasing protrusion 473 is retracted against the biasing force, whereby the biasing protrusion 473 is engaged with the recesses 432a and 432b. Is released.

Next, the configuration of the auxiliary return drive unit 480 will be described.
When the blocking bar 430 rotating in the return direction T2 reaches a predetermined position before reaching the non-released state, the auxiliary return driving unit 480 applies torque to the blocking bar 430 in the return direction T2. Has a role to grant.
As shown in FIGS. 24 and 25, the auxiliary return drive unit 480 is an auxiliary body having a housing shape fixed to the rear end of the support arm 420 (the end opposite to the vehicle passage R) on the arm body 421. Return drive unit main body 480a, auxiliary return motor 481, first spur gear 482, first rotation shaft 483, second spur gear 484, third spur gear 485, second rotation shaft 486, and retraction A gear 487, a locked portion 488, a first detection portion 489a, and a second detection portion 489b are provided.

  The auxiliary return motor 481 is a so-called servo motor that can arbitrarily control the rotation speed and the rotation angle, and is configured to rotate forward and backward based on a command from the control unit 490. The auxiliary return motor 481 is disposed in the auxiliary return drive unit main body 480a with the output shaft facing upward.

The first spur gear 482 is a gear coaxially and integrally fixed to the output shaft of the auxiliary return motor 481, and gear teeth are formed on the outer peripheral surface thereof.
The first rotating shaft 483 is a shaft provided in the auxiliary return drive unit main body 480a so as to extend in the vertical direction, and rotates around the axis line via a bearing (not shown) arranged in the auxiliary return drive unit main body 480a. It is possible to rotate.
The second spur gear 484 is coaxially and integrally fixed to the first rotation shaft 483, and gear teeth are formed on the outer peripheral surface thereof. The gear teeth of the second spur gear 484 are in mesh with the gear teeth of the first spur gear 482 so that the first spur gear 482 and the second spur gear 484 rotate in conjunction with each other around their respective axes. It has become.

The third spur gear 485 is coaxially and integrally fixed to the first rotation shaft 483, and thereby rotates in conjunction with the second spur gear 484 and the first rotation shaft 483. Gear teeth are formed on the outer peripheral surface of the third spur gear 485.
The second rotary shaft 486 is a shaft provided in the auxiliary return drive unit main body 480a so as to be parallel to the first rotary shaft 483, that is, to extend in the vertical direction, and the auxiliary return drive It can be rotated around an axis via a bearing (not shown) disposed in the main part 480a.

The pull-in gear 487 is integrally fixed to the second rotary shaft 486, and rotates around the axis along with the rotation of the second rotary shaft 486. A gear portion 487 a centering on the axis is provided on a part of the outer peripheral surface of the pull-in gear 487. The gear teeth formed on the gear portion 487a mesh with the gear teeth of the third spur gear 485, so that the third spur gear 485 and the pull-in gear 487 can rotate together around their respective axes. It is said that.
In addition, a pull-in portion 487b formed so as to protrude outward in the radial direction of the axis is formed on a portion of the outer peripheral surface of the pull-in gear 487 on the opposite side to the gear portion 487a with respect to the axis. ing.

  The locked portion 488 is integrally attached at the rear end of the base portion 432 of the blocking bar 430 so as to extend in the vertical direction. The locked portion 488 is disposed so as to protrude from the inside of the arm main body 421 into the auxiliary return drive main body 480a when the blocking bar 430 is in a non-released state. The locked portion 488 can be locked so that the pulling portion 487b of the pulling gear 487 is hooked from the rear side in the return direction T2.

Here, as shown in FIG. 25, the position of the locked portion 488 where the retracting portion 487 b is outside the rotation locus L of the locked portion 488, that is, the locked portion 488 of the base portion 432 of the blocking rod 430. The position of the locked portion 488 that does not come into contact with the retracting portion 487 b is the initial position of the locked portion 488 and the pull-in gear 487.
The pulling gear 487 is engaged with the locked portion 488 by rotating in the clockwise direction (locking rotation direction U1) in FIGS. 25 and 26 from the initial position. Further, the pull-in gear 487 engaged with the locked portion 488 is released from the locked portion 488 by rotating in the counterclockwise direction (release rotation direction U2) in FIG. At the same time, it returns to the initial position.

  The first detection unit 489a has a role of detecting that the blocking bar 430 has reached the predetermined position before reaching the non-released state in the return direction T2 from the released state. The first detection unit 489a is installed, for example, in the lower part of the auxiliary return drive unit main body 480a, and is attached to the rear end of the base 432 of the blocking bar 430 by a laser that irradiates upward as shown in FIG. The presence or absence of the locked portion 488 is detected. Thus, it is detected whether or not the blocking bar 430 has reached a predetermined position before reaching the non-release state.

  Here, the predetermined position before the blocking rod 430 reaches the non-released state is that the biasing protrusion 473 of the non-released state holding portion 470 is moved when the blocking rod 430 rotates from the released state to the return direction T2. This means the angular position of the blocking bar 430 when contacting the base 432 of the blocking bar 430. Therefore, when the blocking bar 430 in the released state rotates in the return direction T <b> 2 and the blocking bar 430 contacts the biasing protrusion 473 of the non-released state holding unit 470, the first detection unit 489 a The locked portion 488 at the rear end of the base portion 432 is detected.

  The second detection unit 489b has a role of detecting that the blocking bar 430 has reached the released state as a result of the released blocking bar 430 rotating in the return direction T2. As the second detection unit 489b, as shown in FIG. 25, a switch sensor provided on the inner surface of the middle plate part 421c in the arm main body 421 of the support arm 420 can be employed. Thereby, when the blocking bar 430 is in a non-released state, the base 432 of the blocking bar 430 comes into contact with the second detection unit 489b, so that the second detection unit 489b is in a non-released state of the blocking bar 430. The return to is detected.

  Next, the control part 490 is demonstrated based on the function structure of the circuit breaker 410. FIG. FIG. 27 is a functional block diagram showing functional configurations of the circuit breaker 410 and peripheral devices. The control unit 490 of the circuit breaker 410 includes an opening / closing motor 413, a return motor 441 of the return drive unit 440, an auxiliary return motor 481 of the auxiliary return drive unit 480, and a release motor 466 of the release state holding unit 460. The first detector 489a and the second detector 489b are connected to each other.

  The control unit 490 performs drive control of the auxiliary return motor 481 based on input of signals from the first detection unit 489a and the second detection unit 489b. Specifically, when a signal is input from the first detection unit 489a, the control unit 490 rotates the output shaft of the auxiliary return motor 481 in the forward direction, and the signal is input from the second detection unit 489b. At this time, the output shaft of the auxiliary return motor 481 is reversely rotated.

  Further, outside the circuit breaker 410, a lane server 530 to which a vehicle detector 531, a roadside antenna 532, and an operation unit 533 are connected as peripheral devices is provided. The lane server 530 is connected to the control unit 490 in the circuit breaker 410 and sends a signal to the control unit 490 in response to inputs from the vehicle detector 531, the roadside antenna 532, and the operation unit 533.

  The vehicle detector 531 includes, for example, a plurality of pairs of optical sensors installed on both sides of the vehicle traffic path R, and is configured to detect entry and exit of the vehicle to the toll gate. That is, the vehicle detector 531 detects the entry of the vehicle to the toll gate by using a first optical sensor installed on the entrance side of the toll gate (the rear side in the vehicle traveling direction G of the circuit breaker 410), for example. The exit of the vehicle from the toll gate is detected by a second optical sensor installed on the exit side of the toll gate (front side in the vehicle traveling direction G of the breaker 410). As a result, the vehicle detector 531 outputs a signal corresponding to the entry and exit of the vehicle to the lane server 530 when detecting the entry and exit of the vehicle.

The roadside antenna 532 is installed, for example, on the rear side of the vehicle traveling direction G with respect to the circuit breaker 410. When the vehicle passes through the toll gate, the roadside antenna 532 transmits and receives necessary information to and from the vehicle-mounted device mounted on the vehicle. A signal based on transmission / reception of information is output to the lane server 530.
The lane server 530 then sends a vehicle passage permission command and a vehicle exit detection signal to the control unit 490 based on the input of signals from the vehicle detector 531 and the roadside antenna 532. The control unit 490 causes the blocking bar 430 to perform an opening operation by driving the opening / closing motor 413 to rotate forward based on the vehicle passage permission command. On the other hand, the control unit 490 causes the blocking bar 430 after the opening operation to perform the closing operation by driving the opening / closing motor 413 to rotate in reverse based on the vehicle exit detection signal.

  In addition, the operation unit 533 is installed in a room of a toll booth staff installed around the toll booth. Outputs the open / close request. The lane server 530 sends an opening / closing command to the control unit 490 based on the opening / closing request, and the control unit 490 rotates the driving motor 413 based on the opening / closing command to perform the opening / closing operation of the blocking bar 430. Do. The operation unit 533 may be installed in a monitoring center or the like located away from the toll gate.

  Further, the operation unit 533 is also directly connected to the control unit 490, and sends a release return command for the blocking bar 430 to the control unit 490 when, for example, the “release return button” is pressed. When the release return command is input, the control unit 490 drives the release motor 466 and then drives the return motor 441.

Next, the operation of the circuit breaker 410 of this embodiment will be described.
When the vehicle has not entered the vehicle traffic path R and the circuit breaker 410 is in a standby state, the support arm 20 is in a horizontal state and the blocking bar 430 is in a non-released state, as shown in FIGS. That is, the blocking bar 430 is at the blocking position S which is the home position.

In this non-released state, the return drive unit 440 positions the first gear 449 and the second gear 450 of the clutch mechanism 448 in the initial state as shown in FIG. Further, the first slit 456a of the detected disk 456 is positioned in the laser irradiation region of the disk detection sensor 457 in the state detection means 455, and accordingly, the blocking bar 430 is in a non-release state. Has been detected.
Furthermore, in the release state holding portion 460, as shown in FIG. 22A, the ball nut 468 and the bracket 469 of the locking release portion 465 are at the lowest position, and the slide bar 463 of the biasing locking portion 462 is According to the urging force of the urging member of the urging member accommodating portion 464, it is in the lowest position.

  Further, in the non-release state holding portion 470, the biasing protrusion 473 engages with the recesses 432a and 432b of the base portion 432 of the blocking rod 430 according to the biasing, so that the blocking rod 430 rotates in the release direction T1. The movement is blocked, that is, the blocking bar 430 is held in a non-released state. This prevents the blocking rod 430 from inadvertently releasing.

  Further, in this non-released state, the pull-in gear 487 in the auxiliary return drive unit 480 engages with a locked portion 488 provided on the base portion 32 of the blocking bar 430 as shown in FIGS. It is located in the initial position with no.

  First, the processing procedure of the opening / closing operation of the blocking bar 430 when the vehicle enters the toll gate having the circuit breaker 410 in the standby state as described above will be described. The opening / closing operation of the blocking bar 430 is performed under the control of the lane server 530. FIG. 28 is a flowchart showing a flow of processing of opening / closing operation of the blocking bar 430 executed by the lane server 530.

  First, the lane server 530 determines whether or not the vehicle detector 531 has detected the entry of the vehicle to the toll gate, that is, whether or not the ON signal (vehicle detection signal) from the vehicle detector 531 has been input. (S111). As a result, when it is determined that an OFF signal is input from the vehicle detector 531 (S111: No), the lane server 530 waits until an ON signal is input from the vehicle detector 531. On the other hand, when it is determined that the ON signal is input from the vehicle detector 531 (S111: Yes), the lane server 530 sends a reception command of the vehicle-mounted device information to the roadside antenna 532 (S112), and the roadside antenna 532 Starts communication with the vehicle-mounted device mounted on the vehicle based on this signal.

  Next, the lane server 530 determines whether the vehicle about to pass through the toll gate is a normal vehicle or an abnormal vehicle based on the vehicle-mounted device information received by the roadside antenna 532 (S113). As a result, when it is determined that the vehicle is an abnormal vehicle (S113: No), the lane server 530 performs an abnormal process (S114) and maintains the blocking rod 430 at the blocking position S without performing the opening operation of the blocking rod 430. . Thereby, the process of the lane server 530 at the time of determining that it is an abnormal vehicle in S113 is complete | finished.

  On the other hand, when it is determined in S113 that the vehicle is a normal vehicle (S113: Yes), the lane server 530 sends a vehicle passage permission command to the control unit 490. Accordingly, the control unit 490 rotates the output shaft of the opening / closing motor 413 in the forward direction to rotate the support arm 420 and the blocking bar 430 from the blocking position S to the permission position K (S115). As a result, the circuit breaker 410 is allowed to pass through the vehicle.

  After S115, the lane server 530 determines whether or not the vehicle has detected exit from the toll gate, that is, whether or not an OFF signal has been input from the vehicle detector 531 as a result of completion of vehicle detection by the vehicle detector 531. Is determined (S116). If it is determined that the ON signal is still input from the vehicle detector 531 (S116: No), the lane server 530 waits until an OFF signal is input from the vehicle detector 531. On the other hand, when it is determined that an OFF signal is input from the vehicle detector 531 (S16: Yes), the lane server 530 sends a vehicle exit detection signal to the control unit 490. Based on the vehicle exit detection signal, the control unit 490 rotates the output shaft of the opening / closing motor 413 in the reverse direction to rotate the support arm 420 and the blocking bar 430 from the permission position K to the blocking position S (S17). Thereby, the circuit breaker 410 is in a state where the passage of the vehicle is blocked, and the processing of the lane server 530 when it is determined as a normal vehicle in S113 is completed.

  Here, as described above, when the lane server 530 determines that the vehicle is abnormal and performs abnormality processing, the blocking rod 430 is maintained at the blocking position S, so that the vehicle collides with the blocking rod 430. There is a case. Further, even when the lane server 530 determines that the vehicle is a normal vehicle and causes the blocking bar 430 to perform the opening operation, the vehicle may collide with the blocking bar 430 if the approach speed of the vehicle is too fast. At this time, in this embodiment, the release operation of the blocking bar 430 is performed.

  That is, when a vehicle traveling in the vehicle traveling direction G collides with the bar portion 431 of the blocking bar 430, the impact force acts as a rotational moment that rotates the blocking bar 430 in the release direction T1. In the non-release state holding portion 470, the urging protrusions 473 are released from the recesses 432a and 432b by the rotational moment, respectively, and the engagement between the urging protrusions 473 and the recesses 432a and 432b is released. As a result, the holding of the blocking bar 430 in the non-release state is released, and the blocking bar 430 is rotated in the release direction T1.

  Thus, when the blocking bar 430 rotates in the release direction T1, the third spur gear 452 and the power transmission mechanism 442 of the return drive unit 440, as shown in FIG. The second gear 450 of the clutch mechanism 448 performs a release interlocking operation via the second spur gear 451. When the blocking bar 430 is in the released state, the contact end portions 450b and 450b of the grooves 450a and 450a of the second gear 450 are respectively brought into contact with the claws 449a and 449a of the first gear 449 at the initial position. It will be in contact.

When the blocking bar 430 is in the released state in this way, as shown in FIG. 22A, the locking end portion 463a of the slide bar 463 in the biasing locking portion 462 of the release state holding portion 460 is obtained. Is locked to the base 432 of the blocking bar 430, that is, the locked state in which the released state of the blocking bar 430 is maintained. Thus, the release operation of the blocking bar 430 is completed.
Further, when the blocking bar 430 performs the release operation in this way, the laser irradiation area of the disk detection sensor 457 in the state detection means 455 changes to the first slit 456a, the detected disk 456, and the second slit 456b. . Thereby, it is detected in the state detection means 455 that the blocking bar 430 has been released.

Next, when the blocking bar 430 is in the released state after the release operation is completed, the returning operation for rotating the blocking bar 430 in the return direction T2 to return to the non-released state will be described.
This return operation is performed based on, for example, a release return command that is sent out by operating the operation unit 533 by a toll gate staff when the blocking bar 430 after the release operation is in the release state. FIG. 29 is a flowchart showing the flow of processing of the return operation of the blocking bar 430 executed by the control unit 490.

  First, the control unit 490 determines whether an ON signal is input from the operation unit 533, that is, whether a release return command is input from the operation unit 533 (S121). As a result, when it is determined that an OFF signal is input from the operation unit 533 (S121: No), the process waits until an ON signal is input from the operation unit 533.

  When the control unit 490 determines that the ON signal is input from the operation unit 533 (S121: Yes), it sends a command to release the holding of the blocking bar 430 to the release state holding unit 460 (S122). That is, the controller 490 drives the release motor 466 in the lock release unit 465 to move the slide bar 463 of the biasing lock unit 462 upward as shown in FIG. 22B. As a result, the locking end portion 463a of the slide bar 463 with respect to the base portion 432 of the blocking bar 430 is released. As a result, the holding state in the released state of the blocking bar 430 is released, and the blocking bar 430 becomes rotatable in the return direction T2.

  Next, the control unit 490 rotates the output shaft 441a of the return motor 441 in the return drive unit 440 in the normal direction (S123), thereby causing the first gear 449 of the clutch mechanism 448 in the power transmission mechanism 442 to rotate 90 ° around the axis. Rotate. At this time, as shown in FIG. 30, the contact end portions 450b and 450b of the grooves 450a and 450a of the second gear 450 are in contact with the front side in the rotation direction of the claws 449a and 449a of the first gear 449. The second gear 450 rotates in the same direction in conjunction with the forward rotation operation of the first gear 449. In other words, the claw portions 449a and 449a of the first gear 449 press the contact end portions 450b and 450b of the grooves 450a and 450a of the second gear 450, so that the first gear 449 is interlocked with the forward rotation operation. The two gears 450 perform a return interlocking operation.

  When the second gear 450 performs the return interlocking operation in this manner, the rotation based on the return interlocking operation is transmitted to the release shaft 422 via the second spur gear 451 and the third spur gear 452, and the release shaft 422 is returned in the return direction. Rotate to T2. Accordingly, the blocking bar 430 supported by the release shaft 422 rotates in the return direction T2.

Thereafter, the control unit 490 determines whether or not a signal is input from the first detection unit 489a (S124). That is, whether or not the first detection unit 489a has detected the blocking bar 430 as a result of the rotation of the blocking bar 430 in the return direction T2 due to the contribution of the return drive unit 440 and reaching the predetermined position before the non-release state. Determine. At this predetermined position, the urging protrusion 473 of the non-release state holding portion 470 comes into contact with the blocking bar 430, and the contact becomes resistance of the return operation of the blocking bar 430.
When it is determined that no signal is input from the first detection unit 489a (S124: No), the process waits until a signal is input from the first detection unit 489a.

  On the other hand, when the control unit 490 determines that a signal is input from the first detection unit 489a (S124: Yes), the control unit 490 rotates the output shaft of the auxiliary return motor 481 in the auxiliary return drive unit 480 in the normal direction. . Then, in conjunction with the normal rotation of the auxiliary return motor 481, the pull-in gear 487 rotates in the locking rotation direction U1, and the pull-in portion 487b blocks the locked portion 488 as shown in FIG. The rod 430 is engaged so as to be caught from the rear side in the return direction T2 of the rod 430. When the pull-in gear 487 rotates in the locking rotation direction U1 as the output shaft of the auxiliary return motor 481 further rotates in the engaged state in this way, the pull-in portion 487b causes the locked portion 488 to move. Pushing in the locking rotation direction U1. That is, the pulling portion 487b of the pulling gear 487 pushes the locked portion 488 in the locking rotation direction U1, so that the torque in the return direction T2 is applied to the blocking rod 430. In this way, the blocking bar 430 is rotated in the return direction T2 by the contribution of the auxiliary return drive unit 480 in addition to the return drive unit 440.

Next, the control unit 490 determines whether or not a signal is input from the second detection unit 489b (S126). That is, as a result of the contribution of the return drive unit 440 and the auxiliary return drive unit 480, as shown in FIG. 31, the blocking rod 430 is rotated in the return direction T2 and the blocking rod 430 reaches the released state. It is determined whether the part 489b has detected it. When the blocking bar 430 reaches the release state in this way, the urging protrusion 473 of the non-release state holding part 470 engages with the recesses 432a and 432b of the base part 432, and the blocking bar 430 is held in the non-release state. .
When it is determined that no signal is input from the second detection unit 489b (S126: No), the process waits until a signal is input from the second detection unit 489b.

  On the other hand, when the control unit 490 determines that a signal is input from the second detection unit 489b (S126: Yes), the control unit 490 reversely rotates the output shaft of the auxiliary return motor 481 in the auxiliary return drive unit 480. (S127). Then, in conjunction with this reverse rotation, the pull-in gear 487 rotates in the release rotation direction U2, the lock of the pull-in portion 487b of the pull-in gear 487 with respect to the locked portion 488 is released, and the pull-in gear 487 is It returns to the initial position shown in FIG.

  Subsequently, the control unit 490 rotates the return motor 441 in the return drive unit 440 in the reverse direction (S128), thereby turning the first gear 449 of the clutch mechanism 448 in the power transmission mechanism 442 around the axis as shown in FIG. A 90 ° reverse rotation operation is performed. As a result, the first gear 449 and the claw portions 449a and 449a are returned to the initial positions, and the return operation of the blocking bar 430 is completed.

When the return operation of the blocking bar 340 is completed in this way, the release motor 466 of the release state holding unit 460 is driven in reverse rotation, so that the bracket 469 moves downward. Then, the slide bar 463 of the urging latching portion 462 moves downward according to the urging force of the urging member accommodating portion 464. As a result, the locking end 463a returns to the lowest position where it can be locked to the base 432 of the blocking bar 430 in the released state.
Here, the locking end 463a is returned to the lowest position after the return operation of the blocking bar 430 is completed. However, the present invention is not limited to this, and the base portion of the blocking bar 430 performing the returning operation is not limited thereto. The configuration may be such that the locking end portion 463a returns to the lowest position when 432 rotates to a position where it cannot be locked to the locking end portion 463a at the lowest position.

As described above, in the circuit breaker 410 of this embodiment, when the blocking rod 430 rotates in the release direction T1 due to the collision of the vehicle with the blocking rod 430, the return drive unit 440 is driven. The blocking bar 430 can be rotated in the return direction T2.
That is, only when the release shaft 422 is in the released state, the contact ends 450b and 450b of the grooves 450a and 450a of the second gear 450 abut on the claws 449a and 449a, so that the first gear 449 and the claw The forward rotation operation of the portions 449 a and 449 a is transmitted to the second gear 450. Thereby, the blocking bar 430 interlocked with the release shaft 422 can be rotated in the return direction T2.

  Here, in this embodiment, since the non-release state holding portion 470 is provided to avoid inadvertent rotation of the blocking bar 430 from the non-released state, the blocking bar 430 rotates in the return direction T2. Then, the base portion 432 of the blocking bar 430 comes into contact with the biasing protrusion 473 of the non-release state holding portion 470 at a predetermined position before the non-release state. Therefore, the contact of the biasing protrusion 473 becomes the resistance of the blocking bar 430 rotating in the return direction T2, and the blocking bar 430 may not be returned to the non-released state only by the contribution of the return drive unit 440.

  In contrast, in the present embodiment, when the blocking bar 430 reaches a predetermined position before the non-released state, that is, the base 432 of the blocking bar 430 contacts the biasing protrusion 473 of the non-released state holding unit 470. When contacted, torque in the return direction T <b> 2 by the auxiliary return drive unit 480 is applied to the blocking rod 430. Accordingly, the blocking rod 430 can be quickly and smoothly returned to the non-released state by the contribution of the auxiliary return drive unit 480 and the return drive unit 440.

  Further, the auxiliary return drive unit 480 in the present embodiment includes a first detection unit 489a that detects the arrival of the blocking bar 430 at the predetermined position, and is based on the detection of the blocking bar 430 of the first detection unit 489a. Thus, a torque in the return direction T2 is applied to the blocking bar 430. Therefore, when the blocking bar 430 rotates in the return direction T2 and reaches the predetermined position, torque in the return direction T2 can be quickly applied to the blocking bar 430. As a result, the blocking bar 430 can be returned to the non-released state even more quickly and reliably.

  Further, the auxiliary return drive unit 480 in the present embodiment further includes a second detection unit 489b that detects the arrival of the blocking bar 430 in the non-release state, and the blocking bar 430 is based on the detection of the second detection unit 489b. It is set as the structure which cancels | releases provision of the torque to. As a result, when the blocking bar 430 rotates in the return direction T2 and is in a non-released state, the auxiliary return drive unit 480 can quickly release the torque applied to the blocking bar 430 in the return direction T2. it can. Therefore, for example, even when the vehicle collides with the blocking rod 430 immediately after the blocking rod 430 returns to the non-released state, the release operation of the blocking rod 430 is not hindered, and the collision by the vehicle is smoothly performed. It is possible to escape.

Hereinafter, the circuit breaker according to the third embodiment of the present invention will be described in detail with reference to FIGS. 33 and 34. In the third embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.
As shown in FIG. 33, the circuit breaker 200 of the third embodiment is different from the return drive unit 60 of the circuit breaker 10 of the first embodiment with respect to the configuration of the return drive unit 260, and the other components have the same configuration. There is no.

  The return drive unit 260 of the third embodiment is integrally fixed to the upper part of the support arm 20 in a horizontal state, and a return motor (electric motor) housed in a return drive unit body 260a having a housing shape. 268 and a power transmission mechanism 270 are provided.

  The return motor 268 is a so-called servo motor capable of arbitrarily controlling the rotation speed and rotation angle, and its output shaft 268a can be driven to rotate only in one direction of forward rotation. The return motor 268 is disposed on the opposite side of the vehicle passage R on the rear end side of the support arm 20 so that the output shaft 268a is rotationally driven around an axis parallel to the extending direction of the support arm 20. ing.

  As shown in FIG. 34, the power transmission mechanism 270 includes a coupling 271, a first worm gear 272, a first rotating shaft 272a, a second worm gear 273, a first spur gear 274, and a second rotating shaft 274a. A second spur gear 275, a clutch mechanism 448, and a wire drum 279.

The coupling 271 is integrally fixed to the output shaft 268a of the return motor 268 and the first worm gear 272, that is, has a role of connecting the output shaft 268a and the first worm gear 272.
The first worm gear 272 is an axial member whose one end is coupled to the other end of the coupling 271 and whose other end is rotatably supported by a support portion 260b protruding inside the return drive portion main body 260a. A male screw that twists about the axis is formed on the outer peripheral surface.

  The first rotating shaft 272a is a shaft extending in the vertical direction of the support arm 20 in a horizontal state, and is provided so as to be rotatable around an axis via a bearing 260c disposed in the return drive unit main body 260a. Yes.

  The second worm gear 273 is a substantially disk-shaped member that is coaxially fixed to the first rotating shaft 272a, and rotates integrally with the first rotating shaft 272a. Gear teeth are formed on the outer peripheral surface of the first rotating shaft 272a so as to be screwed with the male screw of the first worm gear 272. The first worm gear 272 and the second worm gear 273 are configured to interlock with each other about their respective axes.

  The first spur gear 274 is a disk-shaped member that is coaxially fixed near the upper end of the first rotation shaft 272a in the support arm 20 in a horizontal state, and is rotated integrally with the first rotation shaft 272a. It has become. Gear teeth are formed on the outer peripheral surface of the first spur gear 274.

  The second rotating shaft 274a extends over and below the support arm 20 in the horizontal state, like the first rotating shaft 272a, and is parallel to the first rotating shaft 272a. The second rotating shaft 274a is connected to the return drive unit main body 260a. It is provided so as to be rotatable around an axis via a bearing 260d.

  The second spur gear 275 is a disk-shaped member that is coaxially fixed near the upper end of the second rotation shaft 274a in the support arm 20 in a horizontal state, and rotates in unison with the second rotation shaft 274a. It is configured. Gear teeth are formed on the outer peripheral surface of the second spur gear 275, and the gear teeth are arranged to mesh with the gear teeth of the first spur gear 274. As a result, the first spur gear 274 and the second spur gear 275 are interlocked with each other around their respective axes.

The clutch mechanism 448 has the same configuration as that of the second embodiment, and includes a first gear 449 and a second gear 450. In the present embodiment, the first gear 449 is disposed on the outer peripheral side of the second rotating shaft 274a and is connected to the second spur gear 275 via a connecting disk 277a. As a result, the first gear 449 rotates together with the second spur gear 275.
The second gear 450 is disposed so as to be rotatable relative to the second rotation shaft 274a below the second gear 450 in the support arm 20 in a horizontal state.

  The wire drum 279 is a disk-shaped member disposed below the clutch mechanism 448 in the support arm 20 in a horizontal state, and is coaxial with the second rotating shaft 274a and on the second rotating shaft 274a. On the other hand, it is provided so as to be relatively rotatable around the axis. The wire drum 279 is fixed to a second gear 449 in the clutch mechanism 448, and is configured to rotate integrally with the second gear 449.

  A wire 279a made of a material having a high tensile strength such as a piano wire is wound around the outer circumference of the wire drum 279 so as to be able to be fed out. When the wire drum 279 rotates in one direction, the wire 279a is sequentially wound around the wire drum 279. On the other hand, when the wire 279a is unwound from the wire drum 279, the wire drum 279 rotates in the other direction. The end portion of the wire 279 a fed out from the wire drum 279 is fixed to a wire fixing portion 280 that is integrally fixed to the base portion 32 of the blocking rod 30.

  When a vehicle traveling in the vehicle traveling direction G collides with the bar portion 31 of the blocking bar 30 in the breaker 200 of the third embodiment having the above configuration, the impact force of the collision causes the blocking bar 30 to move in the release direction T1. The blocking rod 30 is rotated in the release direction T1. At this time, the base 32 of the blocking bar 30 is separated from the support arm 20 in the release direction T1 with the rotation of the blocking bar 30 in the release direction T1, thereby fixing the wire fixed to the wire fixing part 280 of the base 32. 279a is fed out from the wire drum 279.

  When the wire drum 279 rotates in the other direction as the wire 279a is fed from the wire drum 279, the second gear 450 in the clutch mechanism 448 also rotates in the other direction. At this time, rotation in the other direction of the second gear 450 is not transmitted to the first gear 449. That is, the contact end portion 450b of the groove portion 450a of the second gear 450 and the claw portion 449a of the first gear 449 do not contact each other, and the second gear 450 rotates independently of the first gear 449. Thereby, the transmission of the rotation of the wire drum 279 is blocked by the clutch mechanism 448.

The return of the blocking bar 30 to the non-released state in the breaker 200 of the third embodiment that has performed the release operation as described above is performed by, for example, an operation unit by a toll gate staff as shown in FIG. This is performed based on the release return command sent by the operation of 133.
That is, when the control unit 90 sends a signal to the return motor 268 based on the release return command, the return motor 268 is driven and the output shaft 268a rotates forward. Accordingly, when the first worm gear 272 connected to the output shaft 268a via the coupling 271 rotates, the rotational force is transmitted to the second spur gear 275 via the second worm gear 273 and the first spur gear 274. Thus, the second spur gear 275 rotates in one direction.

  When the second spur gear 275 rotates in one direction based on the forward rotation of the output shaft 268a, the first gear 449 fixed integrally with the second spur gear 275 rotates in one direction. Then, the claw part 449a of the first gear 449 presses the contact end part 450b in the groove part 450a of the second gear 450, so that the second gear 450 rotates in one direction with the rotation of the first gear 449. At the same time, the wire drum 279 integrally fixed to the second gear 450 also rotates in one direction.

  When the wire drum 279 rotates in one direction in this way, the wire 279a drawn out from the wire drum 279 is wound around the wire drum 279, so that the tension of the wire 279a is blocked by the blocking rod 30 via the wire fixing portion 280. Is transmitted to the base 32. Then, when the base 32 is pulled to the support arm 20 side, the blocking rod 30 itself rotates in the return direction T2. As a result, the blocking bar 30 automatically returns to the non-released state, and the returning operation of the blocking bar 30 is completed. In other words, the power transmission mechanism 270 in the present embodiment rotates only the forward rotation of the output shaft 268a of the return motor 268 to the blocking bar 30, thereby rotating the blocking bar 30 in the return direction T2.

  As described above, according to the circuit breaker 200 of the present embodiment, when the blocking rod 30 rotates in the release direction T1 due to the collision of the vehicle with the blocking rod 30, the return drive unit 260 is driven. Thus, the blocking rod 30 can be rotated in the return direction T2 to return to the non-release state. Thereby, it is possible to quickly return the blocking bar 30 after the release operation.

  When the blocking bar 30 rotates in the release direction T1, the rotation of the wire drum 279 based on the rotation of the blocking bar 30 is transmitted to the output shaft 268a of the return motor 268 by the action of the clutch mechanism 448. Never happen. That is, since the blocking bar 30 can freely rotate in the release direction T1 without receiving a load on the output shaft 268a, the blocking bar 30 can be smoothly rotated in the release direction T1. Further, since it is possible to prevent the impact applied to the blocking rod 30 from the vehicle from being transmitted to the return motor 268 via the power transmission mechanism 270, it is possible to avoid damage to the return motor 268 at the time of collision. Become.

  On the other hand, when the return motor 268 is driven and the output shaft 268a is rotated forward, the forward rotation of the output shaft 268a is transmitted to the wire drum 279 via the clutch mechanism 448, whereby the blocking rod 30 is moved. It can be rotated in the return direction T2.

  Hereinafter, the circuit breaker according to the fourth embodiment of the present invention will be described in detail with reference to FIGS. 35 and 36. In the fourth embodiment, the same components as those in the first embodiment and the third embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. As shown in FIGS. 35 and 36, the circuit breaker 300 of the fourth embodiment differs from the first embodiment and the third embodiment in the configuration of the return drive unit 360.

  The return drive unit 360 of the fourth embodiment is integrally fixed to the upper portion of the support arm 20 in a horizontal state, and a return motor (electric motor) housed in a return drive unit main body 360a having a housing shape. 368 and a power transmission mechanism 370.

  Similarly to the third embodiment, the return motor 368 is a so-called servo motor capable of arbitrarily controlling the rotation speed and the rotation angle, and its output shaft 368a can be driven to rotate in only one positive rotation direction. The return motor 368 is configured such that, on the rear end side of the support arm 20, the output shaft 368 a is driven to rotate about an axis parallel to the extending direction of the support arm 20, and the output shaft 368 a It arrange | positions so that it may protrude toward R.

  As shown in FIG. 36, the power transmission mechanism 370 includes a coupling 371, a first worm gear 372, a first rotating shaft 372a, a second worm gear 373, a first pulley 374, and a second rotating shaft 374a. , A second pulley 375, a timing belt (belt) 375a, and a clutch mechanism 448 are provided.

One end of the coupling 371 is integrally connected to the output shaft of the return motor 368.
One end of the first worm gear 372 is connected to the other end of the coupling 371, and is a shaft-like member rotatably supported by a pair of support portions 360b protruding inside the return drive portion main body 360a. The outer peripheral surface is formed with a male screw that can be twisted around its axis.

  The first rotary shaft 372a is a shaft extending over the upper and lower sides of the support arm 20 in a horizontal state, and is provided so as to be rotatable around an axis via a bearing (not shown) arranged in the return drive unit main body 360a. Yes.

  The second worm gear 373 is a substantially disk-shaped member that is coaxially fixed to the first rotating shaft 372a, and rotates integrally with the first rotating shaft 372a. Gear teeth are formed on the outer peripheral surface of the first rotating shaft 372a so as to be screwed with the male screw of the first worm gear 372. Thereby, the 1st worm gear 372 and the 2nd worm gear 373 are comprised so that it may mutually interlock | cooperate around each axis line.

  The first pulley 374 is a disk-shaped member that is coaxially fixed near the upper end of the first rotation shaft 372a in the support arm 20 in a horizontal state, and rotates integrally with the first rotation shaft 372a. It has become.

  The second rotating shaft 374a is an axis that extends over the upper and lower sides of the support arm 20 in a horizontal state like the first rotating shaft 372a, and is parallel to the first rotating shaft 372a. For example, the return drive unit main body 360a It is provided so as to be rotatable around an axis via a bearing (not shown) arranged in the shaft.

The second pulley 375 is a disk-shaped member that is coaxially fixed near the upper end of the second rotation shaft 374a in the support arm 20 in a horizontal state, and is rotated integrally with the second rotation shaft 374a. It is configured.
The timing belt 375a is an endless belt formed of an elastic material such as rubber, for example, and the first pulley 374 and the second pulley 375 are held on the inner peripheral side of the timing belt 375a. It is wound around the outer peripheral surface of the two pulleys 375. When the first pulley 374 or the second pulley 375 rotates, the first pulley 374 and the second pulley 375 are interlocked with each other around their respective axis lines via the timing belt 375a.

The clutch mechanism 448 is the same as the breaker 400 of the second embodiment, that is, includes a first gear 448 and a second gear 449.
In the present embodiment, the first gear 448 is disposed on the outer peripheral side of the second rotation shaft 274 a so as to be relatively rotatable with respect to the second rotation shaft 274 a and is integrally connected to the second pulley 375. As a result, the first gear 449 rotates together with the second pulley 375.
The second gear 449 is fixed to the release shaft 22 so as to be coaxial with the release shaft 22, and is configured to rotate in conjunction with the rotation of the release shaft 22.

  When a vehicle traveling in the vehicle traveling direction G collides with the bar portion 31 of the blocking bar 30 in the circuit breaker 300 of the fourth embodiment configured as described above, the impact force of the collision causes the blocking bar 30 to move in the release direction T1. The blocking rod 30 is rotated in the release direction T1. At this time, the release shaft 22 also rotates in the release direction T1 as the blocking bar 30 rotates in the release direction T1.

  At this time, as the release shaft 22 rotates, the second gear 450 in the clutch mechanism 448 rotates in the other direction (release direction T1), but the rotation in the other direction of the second gear 450 is transmitted to the first gear 448. It will never be done. In other words, the second gear 450 rotates independently of the first gear 449, whereby transmission of rotation of the release shaft 22 is blocked by the clutch mechanism 448.

The return of the blocking bar 30 to the non-released state in the breaker 300 of the second embodiment that has been released as described above is sent out, for example, by the operation of the operation unit 133 by a toll gate staff, as in the first embodiment. This is performed based on the release return command.
That is, when the control unit 90 sends a signal to the return motor 268 based on the release return command, the return motor 368 is driven and the output shaft 368a rotates forward. Accordingly, when the first worm gear 372 connected to the output shaft 368a via the coupling 271 rotates, the rotational force is transmitted to the second pulley 375 via the second worm gear 373 and the first pulley 374. The second pulley 375 rotates in one direction.

  When the second pulley 375 rotates in one direction based on the forward rotation of the output shaft 368a, the first gear 449 fixed integrally with the second pulley 375 rotates in one direction. Then, the claw part 449a of the first gear 449 presses the contact end part 450b in the groove part 450a of the second gear 450, so that the second gear 450 rotates in one direction with the rotation of the first gear 449. At the same time, the release shaft 22 fixed integrally with the second gear 450 also rotates in the return direction T2. As a result, the blocking bar 30 automatically returns to the non-release state, and the returning operation of the blocking bar 30 is completed.

  As described above, according to the circuit breaker 300 of the present embodiment, when the blocking rod 30 rotates in the release direction T1 due to the collision of the vehicle with the blocking rod 30, the return is performed as in the third embodiment. By driving the drive unit 260, the blocking bar 30 can be rotated in the return direction T2 to return to the non-release state. Thereby, it is possible to quickly return the blocking bar 30 after the release operation.

  Further, when the blocking rod 30 rotates in the release direction T1, the rotation of the release shaft 22 based on the rotation of the blocking rod 30 is transmitted to the output shaft 368a of the return motor 368 by the action of the clutch mechanism 448. Never happen. That is, since the blocking bar 30 can freely rotate in the release direction T1 without receiving a load on the output shaft 368a, the blocking bar 30 can be smoothly rotated in the release direction T1. Further, since it is possible to prevent the impact applied from the vehicle to the blocking rod 30 from being transmitted to the return motor 268 via the power transmission mechanism 370, it is possible to avoid damage to the return motor 368 at the time of collision. Become.

  On the other hand, when the return motor 368 is driven and the output shaft 368a is rotated forward, the forward rotation of the output shaft 368a is transmitted to the release shaft 22 via the clutch mechanism 448, whereby the blocking rod 30 is moved. It can be rotated in the return direction T2.

As mentioned above, although embodiment of this invention was described in detail, unless it deviates from the technical idea of this invention, it is not limited to these, A some design change etc. are possible.
For example, in the first embodiment and the third embodiment, a method of transmitting the rotation of the output shafts 68a, 268a to the blocking rod 30 via the wires 66, 279a is adopted, and in the fourth embodiment, via the timing belt 375a. The method of transmitting the rotation of the output shaft 368a to the blocking rod 30 is adopted, and in the second embodiment, the method of transmitting the rotation of the output shaft 441a to the blocking rod 430 via a gear is adopted. Is not limited to the aspect described in the embodiment, and various designs are possible.

Further, the clutch mechanism 448 of the second to fourth embodiments may be employed instead of the clutch mechanism 70 of the first embodiment, or the first embodiment may be replaced with the clutch mechanism 448 of the second to fourth embodiments. You may employ | adopt the clutch mechanism 70 of a form.
The configuration of the clutch mechanisms 70 and 448 is not limited to the configuration described above, and for example, a ratchet mechanism that transmits only rotation in one direction may be employed.

DESCRIPTION OF SYMBOLS 10 ... Breaker 12 ... Opening / closing axis | shaft 20 ... Support arm 22 ... Release axis | shaft 30 ... Blocking bar 57 ... Latch mechanism 60 ... Return drive part 68 ... Return motor (electric motor)
70 ... Clutch mechanism 90 ... Control unit 133 ... Operation unit 200 ... Breaker 260 ... Return drive unit 268 ... Return motor (electric motor)
270 ... Power transmission mechanism 279a ... Wire 300 ... Circuit breaker 360 ... Return drive unit 368 ... Return motor (electric motor)
370 ... Power transmission mechanism 375a ... Timing belt (belt)
410 ... circuit breaker 412 ... opening / closing shaft 413 ... opening / closing motor 420 ... support arm 422 ... release shaft 430 ... blocking rod 440 ... return drive unit 441 ... return motor (electric motor)
442 ... Power transmission mechanism 448 ... Clutch mechanism 449 ... First gear 449a ... Claw part 450 ... Second gear 450a ... Groove part 450b ... Contact end part 460 ... Release state holding part 462 ... Energizing locking part 465 ... Unlocking Part 470 ... Non-release state holding part 473 ... Biasing protrusion 480 ... Auxiliary return drive part 481 ... Auxiliary return motor 487 ... Retraction gear 487a ... Gear part 487b ... Retraction part 488 ... Locked part 489a ... First detection part 489b ... second detection unit 490 ... control unit T1 ... release direction T2 ... return direction

Claims (5)

A blocking rod that is rotated between a blocking position for blocking the passage of the vehicle and a permission position for allowing the vehicle to travel, and for opening and closing;
A release shaft that rotates the blocking rod in a release direction that releases an impact caused by the vehicle;
A vehicle traffic breaker comprising: a return drive unit that rotates the blocking rod rotated in the release direction in a return direction opposite to the release direction. The return drive unit is
An electric motor,
The vehicle traffic breaker according to claim 1, further comprising a power transmission mechanism that transmits the positive rotation of the output shaft of the electric motor to the blocking bar to rotate the blocking bar in the return direction. As the power transmission mechanism,
A method of transmitting the rotation of the output shaft to the blocking rod via a wire;
A method of transmitting the rotation of the output shaft to the blocking rod via a belt, or
The vehicle traffic breaker according to claim 2, wherein any one of methods for transmitting the rotation of the output shaft to the blocking rod via a gear is adopted. The power transmission mechanism is
A clutch mechanism that is interposed between the blocking rod and the output shaft, and transmits only rotation of the blocking rod in the return direction and forward rotation of the output shaft between the blocking rod and the output shaft. The vehicle traffic barrier according to claim 2 or 3, further comprising: An arm that supports the blocking bar via the release shaft and rotates the blocking bar between the blocking position and the permission position;
The vehicle passage breaker according to any one of claims 2 to 4, wherein the electric motor is arranged on the arm.

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