JP6653545B2 - Gate device - Google Patents

Description

  The present invention relates to a gate device that restricts traffic of vehicles and the like at a tollgate on a highway or a toll road, or at an entrance to a parking lot, and more particularly to a gate device that automatically returns a released gate bar.

  Conventionally, gate devices are installed at, for example, ETC (Electronic Toll Collection System) gates at tollgates on expressways and toll roads, and entrances and exits of toll parking lots. The gate device restricts the traffic of the vehicle by blocking the gate by lying down (closed) the gate bar. Normally, the vehicle does not collide with a gate bar that blocks the road. However, for example, when a vehicle for which an ETC card is forgotten to be mounted on an ETC on-board device passes through an ETC gate, or when a vehicle entering from an exit of a parking lot proceeds without waiting for a gate bar to open intentionally or negligently In some cases, the vehicle collides with the gate bar. Some gate devices rotate (release) the gate bar in the vehicle traveling direction when the vehicle collides, in order to prevent the gate bar from being damaged due to the vehicle collision. Some gate devices automatically or remotely control a released gate bar.

  Further, a technique for holding a gate bar released in the event of a vehicle collision or the like in that state is also disclosed in, for example, Patent Document 1. In the gate device release / recovery mechanism of Patent Literature 1, when the blocking bar is released in any state, the shaft of the plunger inserted into the connecting member contacts the bottom surface of the blocking bar holder, so that the blocking bar holder is released in the release direction. It prevents recoil in the opposite direction (non-release direction).

  Further, in Patent Document 2, a reciprocating arm which is driven by an actuator and advances in the axial direction of a drive shaft is locked and pushed by a protruding piece, and pushes back a blocking rod at a retracted position to a vertically rotated state. A blocking rod return device is disclosed.

JP 2011-252309 A JP 2011-058331 A

  Since the gate device is usually installed outdoors, the driving of the gate may be hindered by the weather such as snowfall or snowstorm or the environment such as severe cold regions. In a conventional gate device such as the gate device release / recovery mechanism of Patent Document 1 and the shut-off rod return device of Patent Document 2, snow is accumulated around the gate device due to snowfall or snowstorm, or driving for driving the gate. No measures have been taken against freezing in severe cold areas. For example, in the configuration of Patent Literature 1, the operation cannot be performed immediately due to the accumulation of snow on the upper surface of the gate device. Further, in the configuration of Patent Document 2, when the mechanical unit freezes, it is difficult to generate a large driving force enough to operate while destroying the freezing unit, and the operation becomes inoperable as well.

  An object of the present invention is to provide a gate device that can eliminate a factor that hinders driving of a gate and reliably perform a normal operation and a release recovery operation irrespective of weather such as snowfall or an environment such as a severely cold area. To provide.

  In order to solve the above-mentioned problems, a first gate device of the present invention is a gate device for restricting the passage of a moving body on a lane, comprising a main body and a vertical rotation axis having a vertical axial direction. A rotating portion supported above the main body so as to be rotatable, and the rotating portion so as to be rotatable around a horizontal rotating axis having an axial direction in a direction intersecting with the vertical rotating axis. A gate bar base supported by a moving part, and supported by the gate bar base so as to be rotatable around a release rotation axis having an axial direction in a direction intersecting with the horizontal rotation axis, and one end side is detachably attached to the gate bar base. A gate bar that is held so as to be capable of extending the other end side, and a gate bar base is erected in a reclining position where the gate bar base and the gate bar lie, and a gate bar base and a gate bar where the gate bar stands. A gate bar driving unit that rotates around the horizontal rotation axis between the vehicle and the vehicle, and when the passage of the moving body is restricted, the rotation of the rotating unit is performed so that the gate bar in the reclined position blocks the traffic path. The start phase of the moving operation is determined, and when the gate bar separates from the base of the gate bar and the gate bar performs a release operation in which the gate bar rotates around the release rotation axis in the moving direction of the moving body, the rotating portion is moved. A rotation drive unit configured to rotate so as to follow the rotation of the gate bar, and to determine an end phase of the rotation operation of the rotation unit so as to hold the gate bar at the gate bar base. The dynamic drive unit is configured to increase a rotational operation force for rotating the rotating unit as the rotating unit approaches at least the start phase.

  ADVANTAGE OF THE INVENTION According to the 1st gate apparatus of this invention, in the state where freezing is easy to occur like the state where a rotating part is in a starting phase and a normal gate opening / closing operation is possible, it has a simple structure, Since it is configured so as to exert an operating force, it is possible to easily eliminate inoperability in a frozen state.

  In order to solve the above-mentioned problem, a second gate device of the present invention is the first gate device of the present invention described above, wherein the rotation drive unit has a shape extending in the horizontal direction and is rotatable. A screw shaft provided, a nut portion provided to be screwed with the screw shaft, and a nut portion that moves forward and backward along the screw shaft with rotation of the screw shaft; and a rotation shaft portion coaxial with the vertical rotation shaft. And an engagement groove extending in a direction away from the rotation shaft portion and engaging with the nut portion, wherein the nut portion and the engagement groove follow an advance / retreat movement of the nut portion. A rotating lever provided so as to be pivotable in the horizontal direction by changing the engaging position of the nut portion. As the engaging position between the nut portion and the engaging groove becomes farther from the rotary shaft portion, the nut portion The rotation of the rotating part transmitted via the rotating lever by the forward and backward movement of When the rotating portion is in the start phase and the end phase, an engagement position between the nut portion and the engagement groove is farthest from the rotation shaft portion. The rotation angle of the rotation lever is set to the rotation angle.

  According to the second gate device of the present invention, when the rotation lever is at the start rotation angle (when the rotation portion is in the start phase), the moving force from the nut portion is applied to the engagement groove of the rotation lever. Since the nut acts on the most distal end (farther position), the rotational torque applied to the rotary lever is extremely increased, and the largest rotational operation force (rotary torque) can be applied to the rotary portion. With such a configuration, with a simple configuration in which the movement of the nut portion with respect to the screw shaft acts on the engagement groove of the rotation lever, the rotation torque of the rotation lever is reduced in the normal state where the rotation portion is in the start phase. The rotation torque increases, and the rotation portion can be rotated by the rotation torque. As described above, even in the state where freezing is most likely to occur, the simple configuration and the maximum operating force are achieved, so that the inoperability in the frozen state can be easily eliminated. In a phase in which a large torque is not required for the rotation operation of the rotating portion, the moving force from the nut portion is applied to the inside (close position) of the engagement groove of the rotating lever, so that the moving force is applied to the rotating lever. While the rotation torque is reduced, the rotation speed of the rotating lever can be increased.

  In order to solve the above problem, a third gate device of the present invention is the first gate device of the present invention described above, wherein the rotation drive unit has a shape extending in the horizontal direction and is rotatable. A screw shaft provided, a nut portion provided to be screwed with the screw shaft, and a nut portion that moves forward and backward along the screw shaft with rotation of the screw shaft; and a rotation shaft portion coaxial with the vertical rotation shaft. And an engagement groove extending in a direction away from the rotation shaft portion and engaging with the nut portion, wherein the nut portion and the engagement groove follow an advance / retreat movement of the nut portion. A rotating lever provided so as to be pivotable in the horizontal direction by changing the engaging position of the nut portion. As the engaging position between the nut portion and the engaging groove becomes farther from the rotary shaft portion, the nut portion The rotation of the rotating part transmitted via the rotating lever by the forward and backward movement of When the rotating portion is in the starting phase, the rotation position is configured such that an engagement position between the nut portion and the engagement groove is farthest from the rotation shaft portion. The rotation angle of the lever is set.

  According to the third gate device of the present invention, when the nut portion is at the start position and the rotation lever is at the start rotation angle (when the rotation portion is at the start phase), the axis of the engagement groove in the extension direction is provided. And the angle between the nut and the axis of the moving direction of the nut can be reduced. Accordingly, since the angle at which the nut acts on the engagement groove becomes smooth, the torque given to the rotating lever by the movement of the nut can be considerably increased. In addition, when the rotation lever is at the start rotation angle, the engagement position between the nut portion and the engagement groove of the rotation lever is set farther from the center of the rotation shaft portion, so that the rotation that is the source of torque is generated. The radius becomes larger, and the turning torque of the turning lever can be further increased.

  According to a fourth aspect of the present invention, there is provided a gate device according to any one of the first to third gate devices, wherein the connecting unit connects the main unit and the rotating unit. And wherein the connection portion has two or more circumferential walls extending in the vertical direction around the vertical rotation axis.

  According to the fourth gate device of the present invention, a member that rotatably supports the vertical rotation axis from outside the vertical rotation axis (e.g., from the outside of the vertical rotation axis) by two or more circumferential walls allows horizontal rain, snow, snow, and the like. (Such as the ball bearing part of the bearing).

  In order to solve the above-mentioned problem, the fifth gate device of the present invention is the fourth gate device of the present invention described above, wherein one side of the main body portion and the rotating portion is provided along the outer periphery of the connection portion. The device further comprises a fixed flexible protection member, wherein the protection member has a distal end that slides with respect to the other side of the main body and the rotation unit with the rotation of the rotation unit. Have

  According to the fifth gate device of the present invention, the protection member can make it more difficult for snow and rain to enter the inside of the machine and to freeze the rotating part. Further, when the rotating portion rotates for the release return operation, the tip of the protection member moves while sliding on the other side of the main body and the rotating portion. Even when ice adheres to the snow due to snowdrifts or the like, it can be rotated while scraping it off. Furthermore, since the air layer is secured between the circumferential wall and the vertical rotation axis inside the protective member and the heat insulation effect can be expected, even when the outside air is considerably low temperature, freezing around the vertical rotation axis can be prevented. It can be prevented as much as possible.

According to a sixth aspect of the present invention, there is provided a gate device according to any one of the first to third gates described above , wherein a stepping motor which is a gate bar driving motor of the gate bar driving section is provided. of by controlling so as to repeat a reciprocating motion between step, further comprising a vibration control unit makes vibration with the gate bar base the gate bar.

  According to the sixth gate device of the present invention, the snow accumulated on the gate bar, the main body, and the rotating portion can be wiped off, and the frozen state can be easily released. In this case, in controlling a stepping motor or the like for driving a gate bar or controlling a rotation drive motor for driving a rotation unit, vibration control can be realized without adding cost or members. .

  ADVANTAGE OF THE INVENTION According to this invention, the normal operation | movement and release recovery operation | movement can be performed reliably by eliminating the factor which obstructs gate drive regardless of the weather, such as the time of a snowfall, or an environment, such as a severe cold region.

It is a perspective view showing appearance of a gate device concerning an embodiment of the present invention. It is a top view showing release operation and return operation of a gate bar in a gate device concerning an embodiment of the present invention. FIG. 3 is an exploded perspective view showing a main body, a vertically rotating flange, and peripheral portions thereof in the gate device according to the embodiment of the present invention. FIG. 2 is a perspective view showing a rotating unit and peripheral parts of the rotating unit in the gate device according to the embodiment of the present invention. FIG. 3 is a cross-sectional view illustrating a rotation drive unit and a peripheral part of the rotation drive unit in the gate device according to the embodiment of the present invention. It is sectional drawing which shows the vertical rotation flange in the gate apparatus which concerns on embodiment of this invention, and its periphery. It is a perspective view showing release operation of a gate bar in a gate device concerning an embodiment of the present invention. FIG. 2 is a block diagram illustrating an electrical configuration of the gate device according to the embodiment of the present invention. 4 is a flowchart illustrating a release operation of the gate bar in the gate device according to the embodiment of the present invention. It is a sectional view showing a vertical rotation flange in a gate device concerning other embodiments of the present invention, and its periphery. It is a flow chart which shows gate bar vibration control in the gate device concerning other embodiments of the present invention. It is sectional drawing which shows the rotation drive part in the gate apparatus which concerns on other embodiment of this invention, and its periphery.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The following embodiments are preferred specific examples of the present invention and disclose various preferable techniques, but the technical scope of the present invention is not limited to these aspects.

  First, a gate device 1 according to an embodiment of the present invention will be described. As shown in FIG. 1 and the like, a gate device 1 is a concrete formed along a roadway 2 along a roadway 2 at a gate such as an entrance of a tollgate on a highway or a toll road or a toll parking lot. It is installed on the island 3 which is a platform made of. The gate device 1 regulates the passage of a gate of a vehicle (moving body) traveling on the lane 2 by opening and closing a gate bar 16 described later. Note that it is desirable that the surface of the gate device 1 on the side of the lane 2 and the curb portion of the island 3 on the side of the lane 2 are as close as possible. The closer the surface is, the shorter the length of the gate bar 16 is. it can.

  In the present embodiment, for convenience of explanation, when the gate is viewed from a point before the gate on the lane 2, the front side is “front”, the other side (rear side) is “rear”, and the right side is “right”. , The left side is defined as “left”, the upper side as “upper”, and the lower side as “lower”. Hereinafter, when the direction is described in the present embodiment, this definition is assumed. A vehicle traveling on the lane 2 usually approaches the gate device 1 from the front of the gate device 1, and then proceeds to the rear of the gate device 1. That is, the front-back direction of the gate device 1 is a vehicle traveling direction (moving body traveling direction) parallel to the lane 2.

  The gate device 1 includes a main body 11, a rotating unit 13 rotatably provided above the main body 11 via a vertical rotating flange 12 (vertical rotating shaft) having a vertical axial direction, and a vertical A gate bar base 15 rotatably provided on the rotation unit 13 via a horizontal rotation shaft 14 orthogonal to the axial direction of the rotary flange 12, and is detachably attached to the gate bar base 15 so that a release operation described later can be performed. And a gate bar 16.

  In addition, the position of the rotating portion 13 when the horizontal rotating shaft 14 is positioned so as to extend in the front-rear direction is referred to as a “lane-blocking position” (FIGS. 1, 2 (1), 5 (1)). 7 (2)), the phase in the turning operation of the turning section 13 at this time is the start phase. In addition, in the operation of releasing the gate bar 16 that has been released (release release operation), the position of the rotating portion 13 when the gate bar 16 is held by the gate bar base 15 (the horizontal rotating shaft 14 is positioned so as to extend in the left-right direction). The position of the rotating portion 13 at this time) is referred to as a “gate bar pick-up position” (see FIGS. 2 (4), 5 (3), and 7 (1)). The phase is the end phase. In the following, each direction in the description of each part such as the rotating part 13 and the like is shown with reference to the lane cut-off possible position unless otherwise specified.

  Further, when the turning portion 13 is at the position where the road can be blocked (normal position, start phase), the vehicle is turned by turning the horizontal turning shaft 14 so that the gate bar base 15 and the gate bar 16 lie down and upright. The operation of blocking / opening the road 2 is referred to as “roadway opening / closing operation” (or gate opening / closing operation). At this time, the position where the gate bar base 15 and the gate bar 16 lie down is referred to as a “lying position” (see FIGS. 1 and 2 (1)), and the position where the gate bar base 15 and the gate bar 16 stand is referred to as an “upright position” ( (See the solid line in FIG. 7 (2)). In the following, each direction in the description of the gate bar base 15, the gate bar 16, and the like is based on the reclining position unless otherwise specified.

  First, the main body 11 will be described. The main body 11 includes a main body housing 21 formed in a rectangular column shape, and the main body housing 21 is fixed on the island 3. An opening / closing lid 17 is attached to the rear surface of the main body housing 21 so as to be openable and closable. When the opening / closing lid 17 is opened, a rear opening 21 a formed substantially over the entire rear surface of the main body housing 21 is opened. (See FIG. 3 etc.).

  The main body 11 includes a vertical rotation flange 12 at an upper portion of the main body housing 21 and a rotation drive unit 22 that rotationally drives the vertical rotation flange 12 inside the main body housing 21. As shown in FIG. 3, a main body bracket 21 b for mounting the rotation drive unit 22 is provided on the front inner wall of the main body housing 21. A stopper 23 that supports the gate bar 16 that has been released is provided on the left side of the rear surface of the main housing 21, and the stopper 23 is configured to extend rearward from the main housing 21. An upper opening 21c is formed substantially at the center of the upper surface of the main body housing 21. The upper opening 21c is, for example, an elliptical opening that is long in the left-right direction. In the main body case 21, a fixing plate 24 is attached so as to cover the upper opening 21c from above. A bearing 25 is attached to the lower surface of the fixed plate 24, and a rotation lever 26 is attached to the lower surface of the bearing 25. Note that the rotation lever 26 may be configured as a part of the rotation drive unit 22.

  The vertical rotating flange 12 is rotatably arranged on the upper left side of the fixed plate 24. The vertical rotation flange 12 is formed in an annular shape and includes an inner peripheral portion 12a having a lower end, and an outer peripheral portion 12b formed around the inner peripheral portion 12a at a position one step higher than the inner peripheral portion 12a and having an upper end. Is done. The lower end of the inner peripheral portion 12 a of the vertical rotating flange 12 is coaxially connected to the rotating portion 25 a of the bearing 25 via the connection hole 24 a of the fixed plate 24, and the upper end of the outer peripheral portion 12 b is connected to the rotating portion 13. A plurality of screw holes 12c are formed in the inner peripheral portion 12a of the vertical rotation flange 12, and the vertical rotation flange 12 is rotated from above by a plurality of screws 12d passing through the plurality of screw holes 12c. Is concluded. A plurality of screw holes 12e for fastening the rotating portion 13 are formed in the outer peripheral portion 12b of the vertical rotating flange 12.

  The fixing plate 24 is formed, for example, in the shape of an elliptical plate that is long in the left-right direction, and has a connection hole 24a formed on the left side. The fixing plate 24 is arranged so that the connection hole 24 a is aligned with the left part of the upper opening 21 c of the main body housing 21. The fixed plate 24 includes a circumferential wall 24b extending upward (in the vertical direction), and the circumferential wall 24b is provided such that the distal end thereof is slightly spaced from the lower surface of the rotating plate 44. The circumferential wall 24b is formed in an endless circular shape surrounding the connection hole 24a, that is, the periphery of the vertical rotary flange 12, has a larger outer diameter than the outer peripheral portion 12b of the vertical rotary flange 12, and has a connection hole 24a. They are arranged concentrically. A plurality of screw holes 24c are formed in the outer peripheral edge of the fixing plate 24, and the fixing plate 24 is fastened to the main body housing 21 from above by a plurality of screws 24d passing through the plurality of screw holes 24c.

  The bearing 25 is formed in an annular shape, and includes an annular rotating portion 25a on the inner peripheral side and an annular supporting portion 25b on the outer peripheral side. The bearing 25 includes, for example, a number of spherical or cylindrical ball bearings or rollers (not shown) between a rotating portion 25a as an inner ring portion and a supporting portion 25b as an outer ring portion. And a cross roller bearing configured so that the rotating portion 25a rotates. A crossed roller bearing is a bearing that is resistant to radial and axial movement with only one bearing component. The bearing 25 is not limited to a cross roller bearing, and may be configured by arranging two normal radial bearings vertically.

  The bearing 25 is mounted on the lower surface of the fixed plate 24 so that the rotating portion 25 a is aligned with the connection hole 24 a of the fixed plate 24. Specifically, a plurality of screw holes 25c are formed in the support portion 25b of the bearing 25, and the bearing 25 is connected to the fixing plate 24 from below by a plurality of screws 25d passing through the plurality of screw holes 25c. It is fastened to the outer edge of 24a. The bearing 25 may be inserted into the upper opening 21c when the fixing plate 24 is attached to the main body housing 21 in a state where the bearing 25 is attached to the fixing plate 24. After that, it may be attached via the rear opening 21a.

  The rotating lever 26 is a metal lever, and includes a rotating shaft 26a and an engaging portion 26b as shown in FIG. The rotating shaft 26a is formed in an annular shape coaxial with the vertical rotating flange 12 and the bearing 25. The rotating lever 26 is attached to the lower surface of the bearing 25 so that the rotating shaft 26a is aligned with the rotating portion 25a of the bearing 25. More specifically, a plurality of screw holes 26c are formed in the rotation shaft portion 26a of the rotation lever 26, and the rotation lever 26 is supported by a plurality of screws 26d passing through the plurality of screw holes 26c from below. It is fastened to 25 rotating parts 25a. The rotation shaft 26a has a rotation shaft behind the intermediate position between the start position and the end position of the translation nut 33 (see FIG. 5) of the rotation drive unit 22, and rotates from this intermediate position. They are arranged so that the distance to the axis is equal to the distance from the intermediate position to the start position (end position).

  The engaging portion 26b is formed in a spatula shape extending radially outward (in a direction away from the rotating shaft portion 26a) from the rotating shaft portion 26a. The engaging portion 26b is formed in a radial direction (in a direction away from the rotating shaft portion 26a). And an engagement groove 26e extending therefrom is formed. The engagement groove 26e is fitted to the linear motion roller 33c of the linear nut 33 and engaged with the linear nut 33.

  The rotation lever 26 follows the advancing and retreating of the translation nut 33 of the rotation drive unit 22 and changes the engagement position between the translation nut 33 and the engagement groove 26e, so that the rotation shaft 26a is pivoted. It is provided so as to be pivotable in the horizontal direction. When the rotating portion 13 is in the starting phase and the ending phase, the rotating lever 26 is configured such that the fitting position (engaging position) between the linear motion roller 33c and the engaging groove 26e is farthest from the rotating shaft portion 26a. The start rotation angle and the end rotation angle of the rotation lever 26 are set to the rotation lever 26, and the rotation lever 26 is disposed. That is, the start rotation angle and the end rotation angle of the rotation lever 26 correspond to the start phase and the end phase of the rotation operation of the rotation unit 13. Note that the rotation lever 26 is incorporated below the upper opening 21c of the main body housing 21 of the main body 11 so as to avoid the upper opening 21c. Before mounting, the rotation lever 26 can be rotated 360 ° inside the main body housing 21.

  The rotation lever 26 may be inserted into the upper opening 21c when the fixed plate 24 is mounted on the main body housing 21 in a state where the rotation plate 26 is mounted on the fixed plate 24 together with the bearing 25. After being attached to the housing 21, it may be attached via the rear opening 21a. When the rotation lever 26 is attached, the start rotation angle is adjusted so that the engagement groove 26e faces the right front direction (for example, a direction at 45 ° to the right direction).

  That is, the vertical rotation flange 12 is connected to the rotation drive unit 22 via the bearing 25 and the rotation lever 26. Therefore, after the bearing 25 and the rotation lever 26 are attached to the main body housing 21, the rotation lever 26 can be rotated by operating the vertical rotation flange 12.

  The inner peripheral portion 12a of the vertical rotary flange 12, the rotary portion 25a of the bearing 25, and the rotary shaft portion 26a of the rotary lever are provided with a central hole vertically flowing in the center of the annular shape. Finally, electrical wiring (not shown) is routed up and down through these central holes.

  As shown in FIG. 3 and the like, the rotation drive unit 22 includes a chassis 31, a translation screw 32 (screw shaft), a translation nut 33 (nut portion), a rotation drive motor 34 (see FIG. 8), A limit detection switch 35 and a second limit detection switch 36 are provided. The rotation drive unit 22 rotates the vertical rotation flange 12 in the horizontal direction, thereby moving the rotation unit 13 connected to the vertical rotation flange 12 together with the horizontal rotation shaft 14, the gate bar base 15, and the gate bar 16 in the horizontal direction. Can be rotated. For example, the rotation drive unit 22 rotates the vertical rotation flange 12 when returning the gate bar 16 that has been released to the state before the release operation, that is, the original state in which the roadway opening / closing operation is possible. The rotation drive unit 22 of the present embodiment is configured to increase the rotational operation force for rotating the rotation unit 13 as the rotation unit 13 approaches the start phase and the end phase of the rotation operation.

  The chassis 31 is formed substantially in a gate shape, and includes at least a front wall 31a, a right side wall 31b, and a left side wall 31c. By fastening the front wall 31a of the chassis 31 to the main body bracket 21b with screws or the like, the rotation drive unit 22 is mounted inside the main body housing 21. A guide groove 31d is formed on the inner surface (rear surface) of the front wall 31a of the chassis 31 along the left-right direction.

  The linear screw 32 has a helical screw portion (male screw) formed over the entire area from the right side wall 31b to the left side wall 31c of the chassis 31. The translation screw 32 is rotatably mounted on the right and left side walls 31b and 31c of the chassis 31 while being supported by bearings. The right part of the direct drive screw 32 protrudes to the right side from the right side wall 31b. A wheel 32a is provided on the right end of the direct drive screw 32 coaxially with the direct drive screw 32, and a belt pulley 32b is provided on the left side of the wheel 32a. It is provided coaxially with the translation screw 32. The wheel 32a has a larger outer diameter than the belt pulley 32b, and has a knurled outer periphery. The belt pulley 32b has a larger outer diameter than the motor pulley 34b of the rotary drive motor 34 (see the left drawing in FIG. 5A), and a belt 37 is stretched between the belt pulley 32b and the motor pulley 34b. I have.

  The belt 37 is formed of, for example, a toothed belt in which a thin metal wire is woven inside a flexible material, and the motor pulley 34b and the belt pulley 32b are formed with uneven tooth portions corresponding to the toothed belt. I have. Alternatively, the belt 37 may be a rubber belt or a V-belt. Thus, when the rotation drive motor 34 rotates, the translation screw 32 rotates at the rotation speed and the rotation torque transmitted from the motor pulley 34b to the belt pulley 32b via the belt 37. The translation screw 32 includes, for example, a spiral screw portion (male thread) inclined in the same direction as the right-hand thread. When the wheel 32a is turned left (counterclockwise) as viewed from the right, the translation nut 33 is turned on. It is configured to move to the left.

  As shown in the left diagram of FIG. 5A and the like, the linear nut 33 includes a hexagon nut 33a therein, and is configured to cover the outside of the hexagon nut 33a with a substantially rectangular parallelepiped frame 33b. The hexagon nut 33 a of the translation nut 33 is screwed to the translation screw 32 between the right side wall 31 b and the left side wall 31 c of the chassis 31. An upper support shaft protrudes upward from the upper surface of the frame 33b of the translation nut 33, and a translation roller 33c is rotatably fitted on the outer periphery of the upper support shaft. A front support shaft protrudes forward from the front surface of the frame 33b of the translation nut 33, and a guide roller 33d is rotatably fitted on the outer periphery of the front support shaft.

  The translation roller 33c fits into the engagement groove 26e of the rotation lever 26, and the guide roller 33d fits into the guide groove 31d of the front wall 31a of the chassis 31. Thus, the translation nut 33 is movable in the left-right direction along the guide groove 31d with the rotation of the translation screw 32, while being supported by the translation screw 32 and the guide groove 31d. Further, by moving the translation roller 33c in the left-right direction together with the translation nut 33, the fitting position (engagement position) between the translation roller 33c and the engagement groove 26e of the rotating lever 26 becomes the engagement groove 26e. The turning lever 26 is turned while changing along.

  The start position of the movement of the translation nut 33 is the rightmost position within the movement range (on the translation screw 32 from the right side wall 31b to the left side wall 31c of the chassis 31). Is the leftmost position in the movement range. The start position and the end position of the translation nut 33 correspond to the start phase and the end phase of the turning operation of the turning unit 13.

  On the rear surface of the frame 33b of the translation nut 33, a detection piece 33e detected by the first limit detection switch 35 and the second limit detection switch 36 protrudes rearward.

  The rotation drive motor 34 is, for example, a DC motor, and is fixed to the chassis 31 below the translation screw 32, and drives the drive shaft 34 a parallel to the translation screw 32 as shown in FIG. Have. The drive shaft 34a of the rotary drive motor 34 projects rightward from the right side wall 31b of the chassis 31, and a motor pulley 34b is attached to the right end of the drive shaft 34a.

  The first limit detection switch 35 and the second limit detection switch 36 are, as shown in the right diagram of FIG. 5 (1), FIG. 5 (2), and FIG. Behind the (detection piece 33e), it is fixed near the inside of the left and right ends of the chassis 31. For example, the first limit detection switch 35 is provided at a position corresponding to the detection piece 33e when the translation nut 33 is at the start position (the rightmost position within the movement range), and the second limit detection switch 36 is Are provided at a position corresponding to the detecting piece 33e when the translation nut 33 is at the end position (the leftmost position within the moving range). The first limit detection switch 35 and the second limit detection switch 36 may be adjustably mounted so that they can be fixed while being slightly moved in the left-right direction with respect to the chassis 31.

  Each of the first limit detection switch 35 and the second limit detection switch 36 has, for example, a U-shape, and is configured by a transmission-type optical sensor that transmits and receives infrared rays to and from the optical axis in the front-rear direction. The detection piece 33e located corresponding to the gap of is detected. The first limit detection switch 35 and the second limit detection switch 36 are turned on when the optical axis is blocked by the detection piece 33e, and are turned off when the detection piece 33e separates from the optical axis. Note that the first limit detection switch 35 and the second limit detection switch 36 are not limited to transmission type optical sensors, and may be micro switches or the like for operating a detection actuator.

  The rotation drive motor 34 is controlled by the control unit 60 (see FIG. 8) based on the detection results of the first limit detection switch 35 and the second limit detection switch 36. For example, the control unit 60 may stop the rotation drive motor 34 instantaneously when the detection piece 33e blocks the optical axis of the first limit detection switch 35 or the second limit detection switch 36. Alternatively, the control unit 60 counts the number of pulses of a rotation encoder or the like (not shown) of the rotation drive motor 34 and overruns the rotation drive motor 34 by the number of pulses of a predetermined set count value. It may be stopped.

  After the fixing plate 24 is attached to the main housing 21, the rotation drive unit 22 is attached via the rear opening 21 a of the main housing 21. The rotation drive unit 22 adjusts the position of the translation nut 33 so that the translation roller 33c of the translation nut 33 fits into the engagement groove 26e of the rotation lever 26 arranged at the start rotation angle. At the same time, the chassis 31 is inserted from a slightly lower side so as to be temporarily hooked on the main body bracket 21b of the main body casing 21. Then, the chassis 31 is fastened to the main body bracket 21b while confirming that the linear motion roller 33c is surely fitted into the engagement groove 26e, so that the rotation drive unit 22 is fixed to the main body housing 21. Is done. The position of the translation nut 33 may be adjusted by rotating the wheel 32a of the translation screw 32 so that the translation roller 33c is fitted into the engagement groove 26e.

  Next, the rotating unit 13 will be described. The rotating section 13 includes a box-shaped rotating housing 41 formed in a rectangular column shape. When the gate device 1 is viewed from above, the rectangular outer shape of the rotating housing 41 is preferably substantially the same as the rectangular outer shape of the main housing 21. The rotating part 13 is connected to the vertical rotating flange 12 at the left part on the lower surface of the rotating housing 41. An opening / closing door 46 (see FIGS. 4A and 4B) is attached to the rear surface of the rotating housing 41 so as to be openable and closable. The rear opening 41a formed in almost the entire rear surface is open (see FIG. 4B).

  The rotation unit 13 includes a horizontal rotation shaft 14 and a gate bar driving unit 42 that drives the horizontal rotation shaft 14 to rotate together with the gate bar base 15 and the gate bar 16 inside the rotation housing 41. The tip of the horizontal rotation shaft 14 is exposed to the outside through an opening formed on the front surface of the rotation housing 41 and can be connected to the gate bar base 15. A flange 43 is fixed to the distal end of the horizontal rotation shaft 14 for detachably attaching the gate bar base 15 with a screw or the like. A substantially circular lower opening 41b is formed on the left side of the lower surface of the rotating housing 41. The lower opening 41b is provided concentrically with the vertical rotation flange 12 arranged in the main body housing 21. In the rotating housing 41, a rotating plate 44 is attached so as to cover the lower opening 41b from below.

  The rotating plate 44 is formed, for example, in a substantially rectangular plate shape, and has a connection hole 44a formed substantially at the center. The rotation plate 44 is arranged so that the connection hole 44 a is aligned with the lower opening 41 b of the rotation housing 41.

  The rotating plate 44 includes a circumferential wall 44b extending downward (in the vertical direction), and the circumferential wall 44b is provided such that the distal end thereof is slightly spaced from the upper surface of the fixed plate 24. The circumferential wall 44b is formed in an endless circular shape surrounding the connection hole 44a, that is, the periphery of the vertical rotary flange 12, has a larger outer diameter than the circumferential wall 24b of the fixed plate 24, and has the same diameter as the connection hole 44a. It is arranged in a core shape. The rotating plate 44 is fastened to the rotating housing 41 from below by, for example, a plurality of screws (not shown), or is fixed to the rotating housing 41 from below by welding or the like.

  In addition, the rotating portion 13 has a plurality of vertically extending through the lower surface of the rotating housing 41 and the rotating plate 44 along the outer edge of the connection hole 44 a on the inner peripheral side of the circumferential wall 44 b of the rotating plate 44. Screw holes 41c are formed. The rotating unit 13 is placed above the main body 11 with the lower opening 41 b concentrically aligned with the vertical rotating flange 12, and then is rotated through the rear opening 41 a of the rotating housing 41. The rotating portion 13 is fastened (fixed) to the vertical rotating flange 12 by fastening the plurality of screws 41 d passing through the plurality of screw holes 41 c from the inside of the body 41 to the plurality of screw holes 12 e of the vertical rotating flange 12. .

  The gate bar drive unit 42 includes a gate bar drive motor 45 (see FIG. 8) and the like. The gate bar driving unit 42 moves the horizontal rotation shaft 14 to the gate bar base 15 and the gate bar 16 while the rotation unit 13 is located at the position where the roadway can be blocked and the horizontal rotation shaft 14 is extended in the front-rear direction. The vehicle can be opened and closed by driving the vehicle to rotate. For example, the gate bar driving unit 42 sets the gate bar base 15 and the gate bar 16 to be in the “lying position” when the lane 2 is cut off, and sets the gate bar base 15 and the gate bar 16 to the “standing position” when the lane 2 is opened. ”, The horizontal rotation shaft 14 is rotated. The “standing position” of the gate bar base 15 and the gate bar 16 may be any position that sufficiently opens the lane 2 (gate). For example, a position where the gate bar base 15 and the gate bar 16 are vertically upright or , 85 degrees.

  The gate bar drive motor 45 is, for example, a stepping motor. In the stepping motor, a plurality of stators are arranged around a rotor integrated with an output shaft, and a rotor attached to each of the stators is sequentially excited to rotate the rotor. The stepping motor can realize fine control of the rotation speed and accuracy of the stop position. The gate bar drive motor 45 is provided inside the rotating housing 41, and can be maintained through a rear opening 41a of the rotating housing 41. When the gate device 1 does not have a vibration mode described later, the gate bar drive motor 45 may be constituted by another type of motor such as a DC brush motor instead of the stepping motor.

  Next, the gate bar base 15 and the gate bar 16 will be described. The gate bar base 15 is a long member formed in a U-shaped cross section with an open front side, and has a shape to which one end side of the gate bar 16 is fitted. The gate bar base 15 has a rear surface on one end side (right side) in the longitudinal direction attached to the horizontal rotation shaft 14, and is rotatable with respect to the rotation unit 13 in accordance with the rotation of the horizontal rotation shaft 14. I have. On the other hand, the other end (left side) in the longitudinal direction of the gate bar base 15 extends in a direction intersecting with the horizontal rotation axis 14 (a direction orthogonal to the horizontal rotation axis 14 in the present embodiment). On the other end side of the gate bar base 15, a release rotation shaft 51 having an axial direction in the short direction (vertical direction) is provided. A holding part spring 52 is mounted on the bottom of the gate bar base 15 (see FIGS. 2 (2) to (4)).

  The gate bar 16 is formed to be long and has a length that can block the road 2 when one gate device 1 restricts the traffic of the vehicle. The gate bar 16 includes a gate bar holding portion 53 provided on one end side (right side) in the longitudinal direction, and a gate bar main body 54 attached to the gate bar holding portion 53 and extending to the other end side (left side) in the longitudinal direction. The gate bar main body 54 is formed by covering the other end of a core made of a lightweight material such as an aluminum hollow pipe with a cushioning material made of urethane foam or the like. The outer surface of the cushioning material constituting the gate bar main body 54 may be laminated with a red-white stripe or the like in order to improve visibility from a driver or the like. The other end in the longitudinal direction of the gate bar main body 54 is formed with a pointed end portion 54a having a smaller outer diameter toward the other end.

  The gate bar 16 is attached to the gate bar base 15 so that the gate bar holding portion 53 is fitted to the gate bar base 15. At this time, the other end in the longitudinal direction of the gate bar holding portion 53 located at the intermediate portion of the gate bar 16 is rotatably supported by the release rotation shaft 51 of the gate bar base 15. As a result, the gate bar 16 can rotate around the release rotation shaft 51 with respect to the gate bar holding portion 53.

  One end of the gate bar 16 is detachably held on one end of the gate bar base 15. Specifically, a locking mechanism 55 is provided at one end of the gate bar base 15 and one end of the gate bar 16, and the locking mechanism 55 connects one end of the gate bar base 15 to one end of the gate bar 16. They are detachably locked to each other. The gate bar base 15 and the gate bar 16 are linearly extended by being locked by the locking mechanism 55, and are integrally fixed, so that the vehicle can be opened and closed. When the locking by the locking mechanism 55 is released, the gate bar base 15 and the gate bar 16 are released from the integral fixing, and the gate bar 16 rotates about the release rotation axis 51 with respect to the gate bar base 15. In the present embodiment, this rotation operation is referred to as a “release operation”, and the direction in which the gate bar 16 rotates around the release rotation shaft 51 by the release operation (the gate device 1 disposed on the island 3 on the right side of the lane 2). In this case, a direction in which the other end of the gate bar 16 in the longitudinal direction is directed toward the vehicle traveling direction, that is, a clockwise direction in a top view) is referred to as a “release direction” (see an arrow in FIG. 2 (2)).

  Note that the locking mechanism 55 has a holding force enough to maintain the locking between the gate bar base 15 and the gate bar 16 (gate bar holding portion 53) even when a force such as vibration or wind pressure due to the roadway opening / closing operation is applied. . On the other hand, the locking mechanism 55 is configured so that the locking between the gate bar base 15 and the gate bar 16 (the gate bar holding portion 53) is released by a force greater than the holding force, for example, an external force applied when the vehicle collides with the gate bar 16. Be composed. The locking mechanism 55 is configured to lock the gate bar base 15 and the gate bar 16 when the gate bar 16 that has been released is rotated in the non-release direction and is fitted to the gate bar base 15 by a predetermined pressing force. Having.

  Although not shown, a torsion spring as a release urging portion is provided near the release rotation shaft 51 in the gate bar base 15. The torsion spring applies an urging force to the gate bar 16 so as to facilitate the rotation of the gate bar 16 in the release direction during the release operation.

  Next, a release operation and a release return operation in the gate device 1 will be described with reference to FIGS. 2 and 7 show a release operation and a release return operation of the gate device 1. FIG. Here, the “release return operation” is an operation of returning the gate bar 16 that has performed the release operation to a state before the release operation, that is, an original state in which the roadway opening / closing operation is possible.

  First, the release operation of the gate device 1 will be described. In the gate device 1, normally, as shown in FIG. 2A, the turning portion 13 is located at a position where a road can be cut off, and the horizontal turning shaft 14 is disposed so as to extend in the front-rear direction. The gate bar base 15 and the gate bar 16 can be opened and closed.

  In a normal state, the vehicle does not collide with the gate bar 16 blocking the lane 2. However, in an abnormal state, for example, when a vehicle that has forgotten to mount an ETC card on an ETC (Electronic Toll Collection System) vehicle-mounted device passes through an ETC gate or the like, the vehicle is placed on a gate bar 16 that blocks the lane 2. May collide.

  When a vehicle traveling on the lane 2 collides with the gate bar 16 blocking the lane 2, the vehicle collides with the other end of the gate bar 16 (the other end of the gate bar main body 54). When the vehicle collides with the gate bar 16 in this manner, the locking mechanism 55 is unlocked by an external force applied to the other end of the gate bar 16 due to the collision, and one end of the gate bar base 15 is connected to one end of the gate bar 16 (the gate bar 16). The one end side of the holding portion 53 is detached. Then, as shown in FIG. 2 (2), the gate bar 16 turns around the release turning shaft 51 in the vehicle traveling direction (release direction) (see the arrow in FIG. 2 (2)).

  At this time, when the force applied to the other end side of the gate bar 16 due to the collision is small, the gate bar 16 applies the force due to the collision to a torsion spring (release urging portion, not shown) provided near the release rotation shaft 51. (2), and stops by hitting the stopper 23 with a relatively weak force. As described above, according to the torsion spring, the gate bar 16 that performs the release operation can surely and quickly reach the stopper 23, and the state in which the gate bar 16 hits the stopper 23 and stops can be maintained. On the other hand, when the force applied to the other end side of the gate bar 16 due to the collision is large, the gate bar 16 pivots vigorously due to the force due to the collision and hits the stopper 23 with a relatively strong force. Is absorbed by the buffer material of the stopper 23. In this way, the gate bar 16 is rotated, for example, approximately 90 degrees clockwise (release direction) and stopped, and the direction of the gate bar 16 is substantially parallel to the roadway 2, and the release is completed.

  Next, the release return operation of the gate device 1 will be described. The release operation of the gate bar 16 as described above is detected by a release detection switch 65 (see FIG. 8) described later, and in response to this, the release returning operation is automatically started immediately by the control unit 60 (see FIG. 8). Is done. In the release return operation, first, the rotation drive motor 34 of the rotation drive unit 22 is driven to rotate the translation screw 32 in a counterclockwise direction when viewed from the right, and the translational screw 32 is linearly moved with the rotation of the translation screw 32. The nut 33 moves leftward from the start position (the rightmost position in the moving range). Then, the rotation lever 26 rotates in accordance with the movement of the translation nut 33, and the vertical rotation flange 12 connected to the rotation lever 26 via the bearing 25 rotates. In this manner, as shown in FIG. 2C, the rotation drive unit 22 rotates the vertical rotation flange 12 and the rotation unit 13 follows or follows the rotation of the release operation of the gate bar 16. To rotate. For example, the rotation drive unit 22 rotates the rotation unit 13 approximately 90 degrees clockwise (release direction) from the lane cut-off position to the gate bar pick-up position.

  At this time, the gate bar 16 also rotates clockwise with the rotation of the rotation unit 13. Since the gate bar 16 is in contact with the stopper 23, the gate bar 16 slides rearward while the contact with the stopper 23 is maintained while the rotating portion 13 rotates clockwise. The gate bar 16 rotates around the release rotation shaft 51 in the non-release direction with the contact portion with the stopper 23 as a fulcrum, and one end side of the gate bar 16 (one end side of the gate bar holding portion 53) is moved to the gate bar base 15. Gradually approach one end of the.

  In addition, as shown in FIG. 2C, while the rotating portion 13 rotates, the other end of the gate bar 16 slightly moves away from the road 2 so that the direction of the gate bar 16 is parallel to the road 2. However, at this time, if the other end of the gate bar 16 interferes with another device installed on the island 3, the distance of the stopper 23 from the main body 11 is increased. The portion near the other end of the gate bar 16 is configured to contact the stopper 23. Thus, the amount by which the other end of the gate bar 16 moves in the direction away from the road 2 can be reduced, so that the other end of the gate bar 16 can be prevented from interfering with other devices.

  Then, as shown in FIG. 2D, when the rotating portion 13 rotates to reach the gate bar pick-up position, one end of the gate bar 16 (one end of the gate bar holding portion 53) is moved to one end of the gate bar base 15. Then, one end of the gate bar base 15 and one end of the gate bar 16 are pressed in the clockwise direction by the force by which the rotation drive unit 22 rotates the rotation unit 13. Further, one end of the gate bar 16 receives a resilient force from the holding portion spring 52 at the bottom of the gate bar base 15. At this time, the force of the rotation drive unit 22 and the force of the holding unit spring 52, whose directions are opposite to each other, act on one end of the gate bar base 15 and one end of the gate bar 16, so that they are close to or in contact with each other. Pressed strongly. Thereby, the locking mechanisms 55 provided on one end side of the gate bar base 15 and one end side of the gate bar 16 are securely locked to each other. By this locking, the gate bar base 15 and the gate bar 16 are integrally fixed so that they face in the same direction.

  In this manner, when the rotating unit 13 rotates to the gate bar pick-up position and locks (holds) one end of the gate bar 16 that has been released to one end of the gate bar base 15, the rotation driving unit 22 The rotation of the rotation unit 13 is stopped.

  Subsequently, as shown in FIG. 7A, the gate bar driving unit 42 rotates the horizontal rotation shaft 14 to rotate the gate bar base 15 and the gate bar 16 upward (FIG. 7A, broken line arrow). reference). At this time, the directions of the gate bar base 15 and the gate bar 16 that are integrally fixed remain parallel to the road 2. Then, when the gate bar base 15 and the gate bar 16 that rotate upward reach the upright position, the gate bar driving unit 42 stops the rotation of the horizontal rotation shaft 14.

  Thereafter, as shown in FIG. 7 (2), the rotation drive unit 22 rotates the rotation unit 13 in the direction (non-release direction) opposite to the traveling direction (release direction) of the vehicle (FIG. 7 (2)). ) See dashed arrow). Then, when the turning unit 13 reaches the position where the roadway can be cut off, the turning drive unit 22 stops turning of the turning unit 13. For example, the rotating unit 13 rotates approximately 90 degrees counterclockwise (non-release direction) to reach a position where a roadway can be blocked. In this way, when the rotating portion 13 reaches the position where the roadway can be blocked, the position of the gate bar 16 becomes the same as the position when the roadway 2 is opened in the roadway opening / closing operation. The release return operation may be completed after the gate bar 16 is further turned to the reclining position. When the release return operation is completed after rotating the gate bar 16 to the reclining position, before rotating the gate bar 16, it is determined whether there is no vehicle passing through the gate for safety. The gate bar 16 is rotated to the recline position only when no vehicle passes the gate.

  Next, an electrical configuration of the gate device 1 will be described with reference to FIG. FIG. 8 shows a configuration for electrically controlling the operation of the gate device 1.

  As shown in FIG. 8, the gate device 1 includes a control unit 60 for performing overall control of the gate device 1. The control unit 60 is provided in the main body housing 21 and includes a CPU (Central Processing Unit) 60a and a memory 60b. The CPU 60a and the memory 60b are connected via a bus 61. The memory 60b includes a ROM (Read Only Memory), a RAM (Random Access Memory), a hard disk, a flash memory, and the like, and stores programs and data for controlling the gate device 1. The CPU 60a reads a program and data stored in the memory 60b, and controls the gate opening and closing operation, the release returning operation, and the like of the gate device 1 by executing the program. The bus 61 is further connected to an interface 62.

  The control unit 60 is connected to the rotation drive motor 34, the gate bar drive motor 45, the first limit detection switch 35, and the second limit detection switch 36 via the bus 61 and the interface 62. Further, the control unit 60, via the bus 61 and the interface 62, detects the third limit detection switch 63 that detects that the gate bar base 15 or the gate bar 16 has reached the reclining position, and raises the gate bar base 15 or the gate bar 16 up. A fourth limit detection switch 64 for detecting that the vehicle has reached the position, a release detection switch 65 for detecting the establishment / release of the integral fixation of the gate bar base 15 and the gate bar 16, a setting operation unit 66, and an external roadway. A communication unit 67 that communicates with the control device 69 and the like and an input / output unit 68 are provided.

  The release detection switch 65 is mounted, for example, in the shaft hole of the horizontal rotation shaft 14, and is turned off when the gate bar base 15 and the gate bar holding portion 53 are sufficiently close to or in contact with each other, and is turned on when both are separated. Become. The setting operation unit 66 is, for example, a dip switch, and is provided in the main body housing 21. The communication unit 67 is provided in the main body housing 21 and receives, from the roadway control device 69, vehicle data transmitted from the ETC antenna to the roadway control device 69, for example, when the gate device 1 is installed at the ETC gate. I do.

Next, the control of each unit by the control unit 60 in the release return operation of the gate bar 16 that has been released as described above in the gate device 1 will be described with reference to the flowchart of FIG. Hereinafter, an example will be described in which the control unit 60 controls the release return operation by the right installation control program in the gate device 1 installed on the right side of the lane 2.

  First, in the gate device 1, in the rotation drive unit 22 that maintains the rotation unit 13 at the position where the roadway can be cut off (start phase), the translation nut 33 is moved to the start position (the rightmost position in the movement range). Since the first limit detection switch 35 is disposed, the first limit detection switch 35 is shielded by the detection piece 33 e of the direct acting nut 33 and is turned ON. When the vehicle collides with the other end side of the gate bar 16 while the gate bar 16 is in the lane opening / closing operation or in the reclining position and blocking the lane 2, the gate bar base 15 and the gate bar 16 are integrated. The lock operation is released and the gate bar 16 performs a release operation of rotating in the release direction. When the integrated fixing of the gate bar base 15 and the gate bar 16 is released, the release detection switch 65 is turned ON (step S1: YES).

  When the release detection switch 65 is turned on, the control unit 60 drives the rotation drive motor 34 of the rotation drive unit 22 as described above to operate the vertical rotation flange irrespective of the ON state of the first limit detection switch 35. 12 is rotated clockwise in a top view (step S2). By rotating the vertical rotating flange 12 in this manner, the rotating portion 13 at the position where the lane can be blocked (start phase) rotates clockwise in a top view, that is, in the traveling direction of the vehicle (release of the gate bar 16). Direction).

  For example, FIG. 5B shows a state in which the rotating unit 13 has been rotated by approximately 45 ° after the release return operation has been started. After the release return operation is started, since the translation nut 33 has moved from the start position (the rightmost position within the moving range), the detection piece 33e of the translation nut 33 is turned on by the light of the first limit detection switch 35. After being separated from the shaft, the first limit detection switch 35 is turned off.

  When the rotating part 13 rotates 90 ° to reach the gate bar pick-up position (end phase), the detecting piece 33e of the direct acting nut 33 stops the optical axis of the second limit detecting switch 36 (the end position thereof). (The leftmost point in the range), and the second limit detection switch 36 is turned ON (step S3: YES). As described above, when the rotating portion 13 reaches the gate bar pick-up position, the gate bar 16 is locked to the gate bar base 15 as described above, and the integrated fixation is established therebetween, and the release detection switch 65 is turned off. (Step S4: YES). Immediately after this, the control unit 60 stops the rotation drive motor 34 (Step S5).

  Subsequently, the control unit 60 rotates the gate bar drive motor 45 clockwise as viewed from the distal end side of the horizontal rotation shaft 14 (Step S6). By the clockwise rotation of the gate bar drive motor 45, the gate bar base 15 and the gate bar 16 in the recline position rotate clockwise as viewed from the distal end side of the horizontal rotation shaft 14, that is, rotate toward the standing position. Move. When the gate bar base 15 and the gate bar 16 reach the upright position, the fourth limit detection switch 64 is turned on (step S7: YES). Immediately after this, the control unit 60 stops the gate bar drive motor 45 (Step S8).

  Subsequently, the control unit 60 drives the rotation drive motor 34 of the rotation drive unit 22 to rotate the vertical rotation flange 12 counterclockwise as viewed from above (step S9). Due to the rotation of the vertical rotation flange 12 in the counterclockwise direction, the rotating portion 13 at the gate bar pick-up position rotates in the counterclockwise direction when viewed from above, that is, with the traveling direction of the vehicle (the release direction of the gate bar 16). Rotate in the opposite direction. Then, when the rotating section 13 reaches the position where the road can be blocked, the first limit detection switch 35 is turned on (step S10: YES). Immediately after this, the control unit 60 stops the rotation drive motor 34 (Step S11).

  Subsequently, the control unit 60 determines whether the roadway 2 can be blocked (step S12). For example, when the control unit 60 receives a signal indicating that the vehicle cannot be blocked or the vehicle is approaching from the roadway control device 69, the control unit 60 determines that the vehicle cannot be blocked, and when no such signal is received, the vehicle can be blocked. Is determined.

  When it is determined that the roadway 2 can be shut off (step S12: YES), the control unit 60 rotates the gate bar drive motor 45 in the counterclockwise direction as viewed from the tip side of the horizontal rotation shaft 14 (step S13). ). By the rotation of the gate bar drive motor 45 in the counterclockwise direction, the gate bar base 15 and the gate bar 16 in the upright position rotate counterclockwise as viewed from the tip side of the horizontal rotation shaft 14, that is, toward the reclining position. To rotate. Subsequently, when the gate bar base 15 and the gate bar 16 reach the reclining position, the third limit detection switch 63 is turned on (step S14: YES). Immediately after this, the control unit 60 stops the gate bar drive motor 45 (Step S15). Thus, the release return operation is completed.

  As described above, according to the present embodiment, the gate device 1 that regulates the traffic of the vehicle (moving body) on the lane 2 includes the main body 11, the rotating unit 13, the gate bar base 15, and the gate bar 16. , A gate bar drive unit 42 and a rotation drive unit 22. The rotating portion 13 is supported above the main body 11 so as to be rotatable around a vertical rotating flange 12 (vertical rotating shaft) having a vertical axial direction. The gate bar base 15 is supported by the rotation unit 13 so as to be rotatable around a horizontal rotation axis 14 having an axial direction in a direction intersecting with the vertical rotation flange 12. The gate bar 16 is supported by the gate bar base 15 so as to be rotatable around a release rotation shaft 51 having an axial direction in a direction intersecting with the horizontal rotation shaft 14, and one end side is detachably held by the gate bar base 15. The other end is extended. The gate bar drive unit 42 moves the gate bar base 15 between the recline position where the gate bar base 15 and the gate bar 16 lie down and the upright position where the gate bar base 15 and the gate bar 16 stand up. Rotate around. The rotation drive unit 22 determines the start phase of the rotation operation of the rotation unit 13 so that the gate bar 16 in the lying position blocks the lane 2 when regulating the traffic of the vehicle. When the gate bar 16 is released from the motor 15 and performs a release operation in which the gate bar 16 rotates about the release rotation axis 51 in the moving direction of the vehicle, the rotation unit 13 is rotated so as to follow the rotation of the gate bar 16, and the gate bar is rotated. The end phase of the turning operation of the turning section 13 is determined so that the gate bar base 15 is held by the turning section 13. In addition, the rotation drive unit 22 is configured to increase the rotational operation force for rotating the rotation unit 13 as the rotation unit 13 approaches at least the start phase.

  With such a configuration, in the gate device 1 according to the present embodiment of the present invention, in a state in which freezing is most likely to occur, such as a state in which the rotating unit 13 is in the starting phase and enables a normal gate opening / closing operation. Since it is configured so as to exhibit the maximum operating force with a simple configuration, it is possible to easily eliminate inoperability in a frozen state.

  In the gate device 1 according to the present embodiment, the rotation drive unit 22 has a shape that extends in the horizontal direction, and includes a linear motion screw 32 (screw shaft) rotatably provided and a linear motion screw 32. A translation nut 33 (nut portion) which is provided in a threaded manner and which advances and retreats along the translation screw 32 with the rotation of the translation screw 32; a rotation shaft portion 26a coaxial with the vertical rotation flange 12; An engagement groove 26e extending in a direction away from the shaft portion 26a and engaging with the linear nut 33, and following the forward and backward movement of the linear nut 33, the linear nut 33 and the engagement groove 26e. And a turning lever 26 provided to be able to turn in the horizontal direction by changing the engagement position with the turning lever 26. The rotation drive unit 22 is transmitted via the rotation lever 26 by the forward / backward movement of the translation nut 33 as the engagement position between the translation nut 33 and the engagement groove 26e becomes farther from the rotation shaft 26a. The rotating operation force of the rotating portion 13 is configured to increase. Further, in the rotation drive unit 22, when the rotation unit 13 is in the start phase and the end phase, the rotation position is such that the engagement position between the translation nut 33 and the engagement groove 26e is farthest from the rotation shaft unit 26a. The rotation angle of the moving lever 26 is set.

  For example, as shown in FIGS. 5A and 5B, when the rotation lever 26 is at the start rotation angle and the end rotation angle (when the rotation unit 13 is at the start phase and the end phase), the linear motion roller The extension direction of the engagement groove 26 e of the rotary lever 26 into which the reference numeral 33 c is fitted is inclined by 45 ° with respect to the axial direction of the translation screw 32. At this time, the translation roller 33c is located at the most distal end side of the engagement groove 26e. On the other hand, as shown in FIG. 5B, when the rotation lever 26 is in the middle of the rotation operation (when the rotation part 13 is in the middle of the rotation operation), the engagement groove 26e is formed. Is perpendicular to the axial direction of the translation screw 32. At this time, the translation roller 33c is located at the innermost side of the engagement groove 26e.

  That is, in the above-described configuration, the rotational torque of the rotary drive motor 34 is once reduced by the transmission of the rotation of the belt 37 from the motor pulley 34b to the belt pulley 32b. Motor torque has increased. Further, since the angle of the helix of the translation screw 32 is gentle, a considerable movement force (operating force) is generated in the movement of the translation nut 33 in the left-right direction. Further, the moving force (operating force) of the translation nut 33 acts on the engagement groove 26e of the rotation lever 26 from the translation roller 33c, and is further converted into rotation of the rotation lever 26.

  As shown in FIG. 5A, when the rotation lever 26 is at the start rotation angle (when the rotation unit 13 is in the start phase), the moving force from the translation nut 33 is not applied to the rotation lever 26. Since the linear motion roller 33c acts on the most distal end (far position) of the mating groove 26e, the rotational torque applied to the rotary lever 26 is extremely increased, and the rotary unit 13 is given the largest rotational operation force (rotary torque). be able to.

  As shown in FIG. 5A, when the translation screw 32 and the engagement groove 26e are inclined by 45 °, the movement force of the translation nut 33 acts on the engagement groove 26e from the translation nut 33. The rotating torque that is theoretically increased by twice the route (1.414 times). On the other hand, as shown in FIG. 5B, when the translation screw 32 and the engagement groove 26e are perpendicular to each other, the moving force of the translation nut 33 acts at right angles to the engagement groove 26e. As a result, the torque is transmitted to the inside of the engagement groove 26e (radially inward), so that the rotation torque acting on the rotation lever 26 is considerably smaller than the above.

  With such a configuration, the rotation portion 13 is moved to the start phase by a simple configuration in which the movement of the translation nut 33 with respect to the translation screw 32 acts on the engagement groove 26e of the rotation lever 26 via the translation roller 33c. In the normal state, the turning torque of the turning lever 26 is increased, and the turning portion 13 can be turned by the turning torque. As described above, even in the state where freezing is most likely to occur, the simple configuration and the maximum operating force are achieved, so that the inoperability in the frozen state can be easily eliminated. In a phase in which a large torque is not required in the rotation operation of the rotation unit 13, the moving force from the translation nut 33 is applied to the inside (close position) of the engagement groove 26 e of the rotation lever 26, While the rotation torque applied to the rotation lever 26 decreases, the rotation speed of the rotation lever can be increased.

  Further, in the gate device 1 according to the present embodiment, a fixing plate 24 and a rotating plate 44 are further provided as a connecting portion for connecting the main body 11 and the rotating portion 13. The connection has two or more circumferential walls 24b, 44b extending vertically around the vertical rotating flange 12 (vertical axis of rotation).

  With such a configuration, it is possible to prevent horizontal rain, snow, snow, and the like from reaching the ball bearing portion and the like of the bearing 25 from outside the vertical rotating flange 12. Since the distal ends of the circumferential walls 24b and 44b are provided with a gap that is slightly separated from the fixed plate 24 and the rotating plate 44, the top and bottom are prevented so that rain and snow do not enter the inside from outside through these gaps. It is configured to block with double circular walls that extend alternately from different directions. It should be noted that another double wall is added to these double circular walls (circumferential walls 24b and 44b), and that gaps between the circular walls are filled with grease or the like to further prevent infiltration of rainwater or the like. Can be planned.

  In the gate device 1 according to the present embodiment, the gate bar 16 is provided with a pointed tip 54 a at the tip of the gate bar main body 54. As a result, as shown in FIGS. 2 (3) and (4), in the normal opening / closing operation and the release operation of the gate bar 16, the area outside the moving range of the gate bar 16 and in the area where the gate bar 16 moves in the release returning operation. Even in the case where snow accumulation or snow pools occur, the possibility of the gate bar 16 being stuck in the snow pools and stopping can be reduced by providing the tip pointed portion 54a as compared with the flat tip shape.

  In another embodiment, as shown in FIG. 10, the gate device 1 includes a flexible protection member 71 that suppresses the invasion of foreign matter from the side. It is attached along the outer periphery of the fixed plate 24 as a connecting part for connecting the moving part 13.

  The protection member 71 is a long flexible cover, and is made of, for example, flexible rubber or the like. The protection member 71 is easily bent by thinning the front end portion 71a (upper end portion), and furthermore, a large number of slits 71b are formed at predetermined intervals over the entire length of the front end portion 71a in the longitudinal direction. . The protection member 71 is wound around the outer periphery of the fixing plate 24 so as to extend upward from the fixing plate 24, is further protected from the outside by a cover band 72, and is fixed by screws 73 at a plurality of outside positions. The fixed plate 24 including the protection member 71 is preferably formed in a circular shape having a smaller diameter than the rotating plate 44. The protection member 71 has a vertical width slightly larger than the vertical width from the fixed plate 24 to the rotating plate 44, and the distal end portion 71 a constantly bends in contact with the rotating plate 44, for example, toward the outside. Bent. The distal end portion 71 a of the protection member 71 slides with respect to the rotating plate 44 with the rotating operation of the rotating portion 13.

  In the example illustrated in FIG. 10, the configuration in which the protection member 71 is provided on the fixed plate 24 has been described. However, the protection member 71 is provided on the rotation plate 44 as a connection between the main body 11 and the rotation unit 13. You may be. In this case, the lower end portion of the protection member 71 provided on the rotating plate 44 is formed thin (easy to bend) as a front end portion 71a, and a slit 71b is formed at the lower end portion. Further, the tip end portion 71 a (lower end portion) of the protection member 71 provided on the rotating plate 44 slides with respect to the fixed plate 24.

  As described above, according to the other embodiment, the gate device 1 includes the main body 11 and the main body 11 along the outer periphery of the connection between the main body 11 such as the fixed plate 24 and the rotating plate 44 and the rotating portion 13. It further includes a flexible protection member 71 fixed to one side of the rotating portion 13. The protection member 71 has a distal end portion 71 a that slides with respect to the other side of the main body 11 and the rotating portion 13 with the rotating operation of the rotating portion 13.

  With such a configuration, the protection member 71 can further prevent the snow and rain from entering the inside of the machine and the freezing of the rotating portion 13 from occurring. When the rotating portion 13 rotates for the release return operation, the distal end portion 71a of the protection member 71 moves while sliding on the lower surface of the rotating plate 44 or the upper surface of the fixed plate 24. Even in the case where ice adheres to the periphery of the rotation plate 24 or the rotation plate 44 due to snow drips or the like, it is possible to rotate while scraping off the ice. Furthermore, since the air layer is secured between the circumferential walls 24b, 44b and the vertical rotating flange 12 inside the protective member 71 and the heat insulating effect can be expected, even if the outside air is considerably low temperature, the vertical rotating flange 12 Peripheral freezing can be prevented as much as possible. When the protection member 71 is mounted in this manner, the protection member 71 may be configured without the circumferential walls 24b and 44b.

  Further, since a large number of slits 71b are provided in the distal end portion 71a and the distal end portion 71a is divided into a large number, even if the contact portion of the protection member 71 with the fixed plate 24 or the rotating plate 44 freezes and adheres, the division is performed. Since each of the end portions 71a is merely fixed, the load on the rotating torque of the rotating portion 13 can be reduced. However, if the rotation of the rotation part 13 is started, the tip part 71a of the protection member 71 can be immediately separated from the fixed state.

  In another embodiment, the gate device 1 is configured so that the control unit 60 can switch the driving of the gate bar 16 between the normal mode and the vibration mode. As shown in FIG. 8, in the gate device 1, an excitation control unit 81, a temperature sensor 82, and a timer 83 are connected to a control unit 60 via a bus 61 and an interface 62. Since the driving of the gate bar 16 in the normal mode has been described above, the description will be omitted below.

  The vibration control unit 81 controls the gate bar driving motor 45 of the gate bar driving unit 42 to selectively vibrate the gate bar base 15 together with the gate bar 16 when the vibration mode is set. Since a stepping motor is employed as the gate bar drive motor 45, the vibration control unit 81 controls the gate bar drive motor 45 appropriately using the vibration control of the stepping motor, so that the gate bar 16 can be moved at a substantially constant position. Can be vibrated. For example, the vibration control unit 81 can vibrate the gate bar 16 by repeating the reciprocating operation between the adjacent small-step stators at a high speed for the stepping motor as the gate bar drive motor 45.

Temperature sensor 82 is a sensor for measuring the ambient temperature of the gate apparatus 1, it is attached to the outside or the like of the main body portion 11.

  Next, the vibration control of the gate bar 16 in the gate device 1 will be described with reference to the flowchart of FIG.

  The control unit 60 of the gate device 1 monitors whether or not the outside air temperature measured by the temperature sensor 82 is lower than a predetermined set temperature (Step S21). If the outside air temperature measured by the temperature sensor 82 is lower than the predetermined set temperature (step S21: YES), the process proceeds to the determination of the vibration interval (step S22). On the other hand, when the outside air temperature measured by the temperature sensor 82 is equal to or higher than the predetermined set temperature (step S21: NO), the monitoring of the outside air temperature (step S21) is repeated.

In the determination of the vibration interval (step S22), the control unit 60 uses the timer 83 to determine whether the time from the previous vibration operation has passed a predetermined set interval t1 (for example, three minutes). I do. When the predetermined interval t1 has elapsed (step S22: YES), the process proceeds to the vibration operation of the gate bar drive motor 45 (step S23). On the other hand, when the predetermined set interval t1 has not elapsed (step S22: NO), the apparatus enters a vibration interval standby state until the predetermined set interval t1 has elapsed, and the determination of the vibration interval (step S23) is repeated. .

  In the vibration interval standby state, detection of entry of the vehicle into the gate device 1 is performed as usual (step S24). Then, when the vehicle enters (Step S24: YES), the gate opening / closing operation as described above (Step S25) is performed, and after the gate opening / closing operation ends, the determination of the excitation interval (Step S22) is repeated. On the other hand, if the vehicle does not enter (step S24: NO), the determination of the excitation interval (step S22) is repeated. In the monitoring of the outside air temperature (step S21), if the outside air temperature is equal to or higher than the predetermined set temperature (step S21: NO), similarly to steps S24 and S25, detection of vehicle entry and gate opening / closing operation are performed. Done.

  In the vibration operation of the gate bar drive motor 45 (Step S23), as described above, the vibration control unit 81 vibrates the stepping motor as the gate bar drive motor 45, and maintains the position of the gate bar 16 almost as it is. The vibration operation of the gate bar drive motor 45 is executed only for a predetermined vibration time t2 (for example, 5 seconds), and the control unit 60 starts the vibration operation of the gate bar drive motor 45 using the timer 83. Then, it is determined whether a predetermined vibration time t2 has elapsed (step S26). For example, as long as the gate bar drive motor 45 is driven to vibrate for only 5 seconds, the gate bar drive motor 45 does not generate heat, so that the gate bar drive motor 45 is not heated on the gate device 1 or the gate bar 16 for a predetermined set interval t1 (3 minutes). It is possible to remove snow or the like that has accumulated on the surface of the vehicle or to remove sticking caused by freezing of movable parts such as the vertical rotation flange 12 and the rotation lever 26 of the rotation drive unit 22.

  If the predetermined vibration time t2 has elapsed (step S26: YES), the process shifts to stopping the gate bar drive motor 45 (step S27), and further stopping the gate bar drive motor 45. Then, the flow shifts to the vibration operation (step S28) in FIG. On the other hand, when the predetermined vibration time t2 has not elapsed (step S26: NO), the vibration operation of the gate bar drive motor 45 (step S23) is continued.

  If the stop position of the gate bar 16 is slightly deviated by the vibration operation of the gate bar drive motor 45 (step S23), the position of the gate bar 16 is corrected after the stop of the gate bar drive motor 45 (step S27). May be included. This correction operation is, for example, an operation of monitoring the state of the third limit detection switch 63 and correcting the gate bar 16 to be in the normal recumbent state when the third limit detection switch 63 is OFF instead of normal ON. Is fine.

  In the vibration operation of the rotation drive motor 34 (step S28), the rotation drive motor 34 is once driven to rotate forward and the first limit detection switch 35 is monitored (step S29). Then, when the OFF of the first limit detection switch 35 after the forward rotation is detected (step S29: YES), the rotation drive motor 34 is immediately driven in the reverse rotation (step S30), and the first limit detection switch 35 is turned on. Monitoring is performed (step S31). When the first limit detection switch 35 after the reverse rotation is detected to be OFF (step S31: YES), the rotation drive motor 34 is stopped (step S32), and the vibration operation of the rotation drive motor 34 ends. .

  As a result, the first limit detection switch 35 is turned off when the translation nut 32 starts moving after the translation screw 32 of the rotation drive unit 22 has once started rotating. Is slightly rotated in the release direction, but returns immediately, so that there is no trouble as a whole, and it is possible to prevent sticking or immovability of each mechanism of the rotation drive unit 22 due to icing or the like.

  Until the first limit detection switch 35 is turned off after the rotation of the rotation drive motor 34 (step S29: NO), the control unit 60 uses the timer 83 to set a predetermined timer value t3 (for example, 30). Second) has elapsed (step S33). Until the predetermined timer value t3 elapses (step S33: NO), monitoring whether the first limit detection switch 35 is OFF (step S29) is continued. On the other hand, if the predetermined timer value t3 has elapsed (step S33: YES), there is a problem that the translation nut 33 cannot move, and any mechanism of the rotation drive unit 22 may be frozen and fixed. Therefore, the control unit 60 notifies the freeze error (step S34), stops the rotation drive motor 34, and ends the vibration operation of the rotation drive motor 34.

  The notification of the freezing error (step S34) is performed by the communication unit 67 by notifying an alarm to the roadway control device 69 or the maintenance department of the other gate device 1, or the like. It is not necessary to stop the entire operation of the gate device 1 even if the freeze error is notified (step S34), and the operation of the gate device 1 is continued as long as the gate opening / closing operation is operating normally at least. You may. Of course, in consideration of the possibility of freezing, the gate device 1 may be stopped to operate the vehicle 2 so that the vehicle cannot pass through the lane 2.

  As described above, according to another embodiment, the gate device 1 further includes the vibration control unit 81 that controls the gate bar driving unit 42 to selectively vibrate the gate bar base 15 together with the gate bar 16.

With such a configuration, gate bar 16 and dislodge snow accumulated on the main body portion 11 and Kaidokatamitai 41 may be easier to release the frozen state. At that time, in the control of the stepping motor of the gate bar drive motor 45 and the control of the rotation drive motor 34, the vibration control can be realized without adding any cost or member.

In the above-described embodiment, in the gate device 1, when the rotating part 13 is in the start phase and the end phase, the fitting position between the direct-acting roller 33 c of the direct-acting nut 33 and the engaging groove 26 e of the turning lever 26 is set. Although the start rotation angle and the end rotation angle of the rotation lever 26 are set so that the (engagement position) is farthest from the rotation shaft portion 26a, the configuration in which the rotation lever 26 is arranged has been described. The arrangement of 26 is not limited to this configuration. For example, in another embodiment, as shown in FIG. 12, when the rotating portion 13 is in the starting phase, the engagement position between the direct-acting roller 33c and the engagement groove 26e is farthest from the rotation shaft portion 26a. The rotation angle of the rotation lever 26 may be set as described above, and the rotation lever 26 may be arranged. In this case, the distance between the engagement position when the rotating part 13 is in the end phase and the rotating shaft 26a is determined by the distance between the engaging position when the rotating part 13 is in the starting phase and the rotating shaft 26a. Is set shorter than the distance L between In such other embodiments, the pivot lever 26 is, for example, the engagement portion 26 b is, from a position displaced radially outwardly by a distance d1 from the center of the rotating shaft portion 26a, counterclockwise when viewed is formed to the tangential direction A1 extension, engaging groove 26e is formed along the extending direction of the engaging portion 26 b.

  That is, according to the other embodiment described above, in the gate device 1, the rotation drive unit 22 has a shape that extends in the horizontal direction, and is provided with a direct-acting screw 32 (screw shaft) rotatably provided. A translation nut 33 (nut portion) that is screwed to the translation screw 32 and moves forward and backward along the translation screw 32 with the rotation of the translation screw 32, and a rotation shaft coaxial with the vertical rotation flange 12. A portion 26a and an engaging groove 26e that extends in a direction away from the rotary shaft portion 26a and engages with the translation nut 33. The translation nut 33 follows the forward / backward movement of the translation nut 33. And a turning lever 26 that is provided so as to be pivotable in the horizontal direction by changing the position of engagement with the engaging groove 26e. The rotation drive unit 22 is transmitted via the rotation lever 26 by the forward / backward movement of the translation nut 33 as the engagement position between the translation nut 33 and the engagement groove 26e becomes farther from the rotation shaft 26a. The rotating operation force of the rotating portion 13 is configured to increase. Further, in the rotation drive unit 22, when the rotation unit 13 is in the start phase, the rotation lever 26 is moved so that the engagement position between the direct acting nut 33 and the engagement groove 26e is farthest from the rotation shaft portion 26a. Is set.

  With such a configuration, when the translation nut 33 is at the start position and the rotation lever 26 is at the start rotation angle (when the rotation unit 13 is in the start phase), the axis of the extension direction of the engagement groove 26e is The angle between the translation nut 33 and the axis in the moving direction can be made smaller than 45 °. Accordingly, since the angle at which the linear nut 33 acts on the engagement groove 26e becomes smooth, the torque given to the rotating lever 26 by the movement of the linear nut 33 can be considerably increased.

  When the rotation lever 26 is at the start rotation angle, the engagement position between the translation roller 33c of the translation nut 33 and the engagement groove 26e of the rotation lever 26 is set farther from the center of the rotation shaft 26a. As a result, the turning radius from which the torque is generated becomes larger, and the turning torque of the turning lever 26 can be further increased.

  On the other hand, when the rotation lever 26 is at the end rotation angle (see the two-dot chain line in FIG. 12), the axis of the engagement groove 26e of the rotation lever 26 in the extension direction and the axis of the translation nut 33 in the movement direction are formed. The angles are nearly orthogonal. In addition, since the engagement position between the translation roller 33c of the translation nut 33 and the engagement groove 26e is close to the center of the rotating shaft 26a, the radius of rotation that is the source of torque is reduced. Therefore, when the rotation lever 26 is at the end rotation angle, the rotation torque of the rotation lever 26 does not increase so much. Accordingly, when the rotation lever 26 is at the start rotation angle, the rotation torque of the rotation lever 26 is maximized, the rotation lever 26 approaches the end rotation angle, and the rotation torque of the rotation lever 26 is increased. Is gradually reduced and becomes smaller, while the rotation speed of the rotating lever 26 can be gradually increased. That is, when the rotation unit 13 starts the rotation operation from the start phase, the rotation speed of the rotation lever 26 is the slowest, while the increase in the torque is strengthened, so that the rotation unit 13 operates the most due to icing or the like. It is possible to improve the reliability of the operation of the rotation unit 13 at the time of the rotation start, which is difficult to perform.

In the present embodiment, the first limit detection switch 35, the second limit detection switch 36, and the third limit detection switch 36 are used by the gate device 1 to detect the phases of the rotating unit 13, the gate bar base 15, and the gate bar 16. Although the configuration including the limit detection switch 63 and the fourth limit detection switch 64 has been described, the present invention is not limited to this configuration. For example, in another embodiment, if an encoder capable of detecting the phase of the gate bar base 15 and the gate bar 16 (the phase of the gate bar drive motor 45 ) by 360 degrees and a sensor for detecting the standing position are provided, the gate bar base 15 and the gate bar 16 may be provided. It is possible to perform detailed speed control of the operation of the (gate bar drive motor 45 ) over approximately 180 degrees.

  In addition, the present invention can be appropriately modified within a scope that does not contradict the gist or idea of the invention that can be read from the claims and the entire specification, and a gate device with such a change is also included in the technical idea of the present invention. included.

  INDUSTRIAL APPLICATION This invention can be utilized suitably for the tollgate of a highway or a toll road, the gate apparatus installed in the entrance of a parking lot, etc.

DESCRIPTION OF SYMBOLS 1 Gate device 2 Lane 11 Main part 12 Vertical rotation flange (vertical rotation axis)
Reference numeral 12a Inner peripheral portion 12b Outer peripheral portion 13 Rotating portion 14 Horizontal rotating shaft 15 Gate bar base 16 Gate bar 21 Main body housing 21c Upper opening 22 Rotation driving portion 24 Fixed plate 24a Connection hole 24b Circumferential wall 25 Bearing 25a Rotating portion 25b Support Part 26 Rotating lever 26a Rotating shaft part 26b Engaging part 26e Engaging groove 31 Chassis 31a Front wall 31b Right side wall 31c Left side wall 31d Guide groove 32 Linear motion screw (screw shaft)
33 Linear nut (nut part)
33a Hex nut 33b Frame 33c Linear roller 33d Guide roller 33e Detection piece 34 Rotation drive motor 35 First limit detection switch 36 Second limit detection switch 37 Belt 41 Rotating housing 41b Lower opening 42 Gate bar drive 44 Rotation plate 44a Connection hole 44b Circumferential wall 45 Gate bar drive motor 51 Release rotation shaft 54a Pointed end 55 Locking mechanism 60 Control unit 63 Third limit detection switch 64 Fourth limit detection switch 65 Release detection switch 71 Protection Member 71a Tip part 81 Vibration control part 82 Temperature sensor 83 Timer

Claims (6)

A gate device that regulates the movement of a moving object on a lane,
The main body,
A rotating unit supported above the main body so as to be rotatable around a vertical rotation axis having an axial direction in the vertical direction,
A gate bar base supported by the rotating portion so as to be rotatable around a horizontal rotating axis having an axial direction in a direction intersecting with the vertical rotating axis;
The gate bar base is supported by the gate bar base so as to be rotatable around a release rotation axis having an axial direction in a direction intersecting with the horizontal rotation axis, one end is detachably held by the gate bar base, and the other end is extended. Gate bar
A gate bar driving unit that rotates the gate bar base around the horizontal rotation axis between a reclining position where the gate bar base and the gate bar lie, and an erect position where the gate bar base and the gate bar erect. When,
When regulating the passage of a moving body, the start phase of the turning operation of the turning portion is determined so that the gate bar in the reclined position blocks the lane, and the gate bar is separated from the gate bar base. When the gate bar performs a release operation to rotate around the release rotation axis in the moving direction of the moving body, the rotation unit is rotated to follow the rotation of the gate bar, and the gate bar is moved to the gate bar. A rotation drive unit that determines an end phase of the rotation operation of the rotation unit so as to be held by the base unit,
The gate device, wherein the rotation driving unit is configured to increase a rotational operation force for rotating the rotation unit as the rotation unit approaches at least the start phase. The rotation drive unit includes:
A screw shaft having a shape elongated in the horizontal direction and rotatably provided,
A nut portion which is provided to be screwed with the screw shaft, and which advances and retreats along the screw shaft with rotation of the screw shaft;
A rotating shaft portion coaxial with the vertical rotation shaft, and an engaging groove extending in a direction away from the rotating shaft portion and engaging with the nut portion, following the forward and backward movement of the nut portion A turning lever provided to be pivotable in the horizontal direction by changing the engagement position between the nut portion and the engagement groove,
With
As the engagement position between the nut portion and the engagement groove becomes farther from the rotation shaft portion, the rotational operation force of the rotation portion transmitted through the rotation lever by the forward and backward movement of the nut portion increases. Is configured as
When the rotating portion is in the start phase and the end phase, the rotation angle of the rotation lever is set such that the engagement position between the nut portion and the engagement groove is farthest from the rotation shaft portion. The gate device according to claim 1, wherein the gate device is operated. The rotation drive unit includes:
A screw shaft having a shape elongated in the horizontal direction and rotatably provided,
A nut portion that is provided to be screwed with the screw shaft, and that moves forward and backward along the screw shaft with the rotation of the screw shaft;
A rotating shaft portion coaxial with the vertical rotation shaft, and an engaging groove extending in a direction away from the rotating shaft portion and engaging with the nut portion, following the forward and backward movement of the nut portion A turning lever provided so as to be able to turn horizontally by changing the engagement position between the nut portion and the engagement groove,
With
As the engagement position between the nut portion and the engagement groove becomes farther from the rotation shaft portion, the rotational operation force of the rotating portion transmitted via the rotating lever by the forward and backward movement of the nut portion increases. Is configured as
When the rotating portion is in the start phase, the rotation angle of the rotating lever is set such that the engagement position between the nut portion and the engagement groove is farthest from the rotation shaft portion. The gate device according to claim 1, wherein: Further comprising a connecting portion for connecting the main body portion and the rotating portion,
The connecting portion, the gate device according to any one of claims 1 to 3, characterized in that it has two or more of the circumferential wall extending in the vertical direction about said vertical pivot axis. Further comprising a flexible protection member fixed to one side of the main body and the rotating portion along the outer periphery of the connection portion,
5. The gate according to claim 4, wherein the protection member has a tip portion that slides with respect to the other side of the main body and the rotating portion as the rotating portion rotates. 6. apparatus. The apparatus further comprises a vibration control unit that vibrates the gate bar base together with the gate bar by controlling a stepping motor, which is a gate bar driving motor of the gate bar driving unit, to repeat a reciprocating operation between predetermined steps. The gate device according to claim 1.

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