JP5881536B2 - Start control machine with automatic return mechanism from released state - Google Patents

Description

  The present invention relates to a start controller provided with an automatic return mechanism for automatically returning from a released state in a traffic control device such as ETC (registered trademark) installed near an entrance / exit of a toll road.

  An ETC (registered trademark) lane at the entrance and exit of a toll road such as an expressway is provided with a start controller that informs the driver of permission or disapproval of vehicle traffic by opening and closing a bar-shaped opening and closing bar. In many start controllers, when a vehicle contacts or collides with an open / close bar in a closed position (vehicle passage is not permitted), the open / close bar is used to prevent serious damage to the vehicle or the start controller. Can be moved to a so-called release position (retracted position) by rotating in a substantially horizontal direction. In some start-up controllers, when a vehicle or the like comes in contact with an open / close bar other than the closed position, the open / close bar rotates from that position.

  For example, in Patent Document 1, the hinge pin 36 that rotatably attaches the blocking bar 34 to the support member 30 is tilted in the vehicle passing direction or the opposite side of the vehicle traveling path, and the blocking bar returned to the retracted position is returned. A gate opening and closing device for a vehicle that is intended to prevent rotation by utilizing a moment due to gravity is disclosed.

  In Patent Document 2, when the blocking rod 6 is rotated in the horizontal direction and moved to the retracted position, a passage provided with a blocking rod returning device that can return the blocking rod 6 to the vertical rotation state by a switch operation. A circuit breaker is disclosed.

  Patent Document 3 discloses a vehicle traffic control device in which an open / close bar 12 that regulates vehicle traffic is configured to rotate and jump up diagonally forward and upward in the vehicle passing direction.

  Further, in Patent Document 4, a support arm 12 provided to be rotatable to a closed position and an open position in accordance with rotation of an opening / closing shaft that extends and rotates in a substantially horizontal direction, and can be rotated by the support arm 12. The release shaft 122 supported by the release shaft 122, the blocking rod 13 fixed to the release shaft 122 and provided so as to be rotatable to the normal position and the release position, and the blocking rod 13 in conjunction with the rotation of the support arm 12. A vehicle traffic breaker is disclosed that includes a guide portion 14 that guides the blocking bar 13 so as to rotate from the release position to the normal position.

JP 2005-68886 A JP 2011-58331 A Special table 2010-196367 JP 2011-256680 A

  In the normal operation of the devices as described in Patent Documents 1 and 2, the blocking bar (blocking rod) is cantilevered in a substantially horizontal state in the closed position, and is moved so that one end of the blocking bar jumps up in the open position. It becomes a state. On the other hand, when the vehicle collides with the blocking bar (blocking rod) in the closed position, the blocking rod (blocking rod) rotates in the horizontal direction and moves to the retracted position in order to reduce the impact. However, in the gate opening / closing device described in Patent Document 1, it is understood that the operation of returning the blocking rod moved to the retracted position to the original state needs to be performed manually, which is heavy on the operator and takes time to return. .

  In the invention described in Patent Document 2, the barrier rod that has moved to the retracted position can be automatically restored, but is in the retracted position in addition to the driving device 3 for performing a normal (vertical) opening / closing operation. A return device 5 is provided for pushing back the blocking rod 6 to the vertical rotation state. In short, substantially two drive sources are required, leading to an increase in cost and complexity of the device.

  On the other hand, the vehicle traffic control device described in Patent Document 3 uses only one servo motor 20 for one opening / closing bar 12, but when the vehicle collides with the normal opening / closing operation of the opening / closing bar 12. Is understood to be the same (in any case, it jumps forward and obliquely upward). Therefore, since the opening / closing bar does not move to the retracted position (released state) at the time of a vehicle collision, it is not necessary to provide a return mechanism in the first place, but the opening / closing bar interferes with the vehicle traffic space during the return operation. Furthermore, in the device of Patent Document 3, since the track of the opening / closing bar also includes a traveling direction component of the vehicle driver, there is a problem that the presence of a passing vehicle is not allowed within the track range of the opening / closing bar during the opening / closing operation.

  In the vehicle traffic breaker described in Patent Document 4, since the blocking bar 13 is guided to the guide portion 14 when the support arm 12 rotates, the blocking bar 13 is moved from the release position to the normal position without using a separate drive source. It is understood that it can return to. However, the guide portion is provided on the front surface of the main body 11 of the circuit breaker so as to protrude over a relatively wide range, so that the apparatus becomes larger. Further, since the guide portion 14 contacts the support arm over the entire movable range (about 90 °) of the support arm 12, the blocking bar 13 is angularly displaced with respect to the support arm 12 immediately after the support arm 12 is rotated, As a result, the blocking rod 13 may enter the vehicle traffic space during the return operation. For safety reasons, it is desirable to prevent any member from entering the vehicle traffic space during the return operation.

  Therefore, the present invention provides a start control machine equipped with an automatic return mechanism that does not require a plurality of drive sources and has a compact configuration, but can automatically return the open / close bar at the release position (retracted position). For the purpose.

  In order to achieve the above object, the first invention of the present application is directed to a main body, an arm rotatably attached to a rotary drive shaft that rotates relative to the main body, and the rotary drive shaft with respect to the arm. A bar holder rotatably attached around a vertical release axis, and an open / close bar fixed at one end to the bar holder, the open / close bar extending substantially horizontally by driving the rotary drive shaft It is configured to be movable between a closed position that prevents passage of the vehicle and an open position that rotates vertically from the closed position to allow passage of the vehicle, and when the vehicle is in the closed position, In a start controller configured to rotate in a substantially horizontal direction around the release axis with respect to the arm and move to a release position, a link base attached so as to be freely rotatable with respect to the rotational drive shaft; Phosphorus A link having one end pivotally attached to the base and the other end pivotally attached to the bar holder, and the link when the rotary drive shaft rotates at a predetermined angle when the open / close bar is in the release position. A stopper provided on the main body so as to come into contact with a base, and when the opening and closing bar is in the release position, the link is rotated when the rotation drive shaft further rotates from the predetermined angle. There is provided a start controller configured such that the bar holder is rotated around the release axis by a force received from the other end of the shaft and returned from the release position.

  According to a second invention, in the first invention, the other end of the link is driven to rotate more than a portion of the bar holder connected to the release shaft when the open / close bar is in the release position. Provided is a starter controller that is pivotally attached to a part of the shaft that is further away from the main body than the release shaft.

  According to a third invention, in the first or second invention, the return operation rotation angle range of the arm is when the rotation angle position of the rotation drive shaft when the open / close bar is in the closed position is zero degrees. And a start controller limited to a rotation angle range of 20 degrees to 130 degrees.

  According to a fourth invention, in any one of the first to third inventions, a lock mechanism for holding the opening / closing bar in the release position is provided in the arm, and is associated with the lock mechanism. A projecting member projecting from the surface facing the main body so as to be displaceable with respect to the surface is provided, and the rotation angle of the arm enters a return operation rotation angle range on the surface of the main body facing the arm. A protrusion is provided to contact the protruding member to displace the protruding member, and the protruding member is configured to release the lock mechanism while being displaced by contacting the protruding portion. Provide a start controller.

  According to the present invention, the automatic return operation of the open / close bar from the release position is performed so that the link base is attached to the rotary drive shaft so as to freely rotate, the link connecting the link base and the bar holder, and the link base at a predetermined angle. This can be done automatically by a configuration including a stopper held in position. Accordingly, a compact and low-cost start controller is provided that does not require a separate drive source for the automatic return operation.

  By limiting the return operation rotation angle of the arm within a predetermined range, the return operation of the opening / closing bar can be performed outside the vehicle passage space, and the opening / closing bar can be prevented from entering the vehicle passage space during the return operation.

  The combination of the projecting member associated with the lock mechanism that holds the open / close bar in the release position and the convex portion provided on the main body side allows the lock mechanism to be automatically released during the rotation of the arm.

BRIEF DESCRIPTION OF THE DRAWINGS It is an external appearance perspective view which shows operation | movement of the start control machine which concerns on suitable embodiment of this invention, Comprising: (a) The state which has an open / close bar in a closed position, (b) The state which has an open / close bar in a release position , (C) a state in which the rotational drive shaft is rotating toward the return operation start position, (d) a state in which the return operation is being performed, (e) a state in which the return operation is completed, and (f) an open / close bar Shows a state in which is returned to the open position. It is an external appearance perspective view which shows the release return mechanism of the start control machine of FIG. It is an external appearance perspective view which shows return operation | movement of the start controller of FIG. 1, (a) The state which the arm rotated 85 degree | times and reached the return operation start position, (b) The arm rotated 90 degree | times and opened and closed This shows the state where the bar starts to rotate relative to the bar holder, (c) the arm rotates 105 degrees and the open / close bar further rotates relative to the bar holder, and (d) the arm rotates 110 degrees. The opening / closing bar has returned to the normal position with respect to the bar holder. It is an external appearance perspective view of the bar holder and arm which hold | maintain an opening-and-closing bar. (A) It is a side view of the start control machine in the state where an opening-and-closing bar exists in a release position, and is a figure showing an AA section of (b) (a). (A) It is a side view of the start control machine at the time of return operation | movement start, (b) It is a figure which shows the BB cross section of (a). (A) It is a side view of the start control machine at the time of completion | finish of return operation | movement, (b) It is a figure which shows CC cross section of (a). It is the (a) front view and (b) side view of a release return mechanism when an opening-and-closing bar exists in a release position. It is the (a) front view and (b) side view of a release return mechanism when an opening-and-closing bar exists in a normal open position.

  FIG. 1 is an external perspective view showing a start controller 2 according to a preferred embodiment of the present invention. The start controller 2 includes a substantially rectangular parallelepiped main body 6 fixedly disposed on an installation surface 4 such as the ground, and a rotational drive shaft extending substantially parallel to the installation surface (generally substantially horizontal) on the side of the main body 6 on the vehicle entry side. 8, an arm (only a plate-like member is shown in the illustrated example) fixed to the rotary drive shaft 8, a bar holder 12 connected to the arm 10 so as to be angularly displaceable, and a cantilever on the bar holder 12 And an open / close bar 14 fixedly supported in a manner. The bar holder 12 is connected to the arm 10 by a release shaft 16 that is substantially perpendicular to the rotational drive shaft 8, and is configured to be rotatable around the release shaft 16 within an angle range of at least 90 degrees with respect to the arm 10. In this embodiment, it is assumed that the vehicle passes in the direction indicated by the arrow 18, and the rotational drive shaft 8 of the arm 10 is substantially parallel to the vehicle passing direction 18.

  The rotational drive shaft 8 is rotationally driven with respect to the main body 6 by a drive source (not shown), and the arm 10 also rotates as the rotational drive shaft 8 rotates. Various electric motors (not shown) or the like can be used as a drive source for the rotary drive shaft 8. For example, a servo motor that can accurately control the rotation angle position of the arm 10 is preferable.

  In a normal opening / closing operation, the opening / closing bar 14 extends substantially horizontally to prevent the vehicle from passing (FIG. 1 (a)), and opens substantially vertically to allow the vehicle to pass (FIG. 1 (FIG. 1). f)) is moved in the vertical direction by the rotation of the arm 10. More specifically, assuming that the rotation angle position of the arm 10 with respect to the main body 6 in the closed position in FIG. 1A is zero degrees, the arm 10 in the open position shown in FIG. The arm is rotated until it moves to a position that does not hinder, and the rotational angle position of the arm in the open position is normally set to 85 to 90 degrees. In this normal opening / closing operation, the rotational angle position of the bar holder 12 (opening / closing bar 14) with respect to the arm 10 does not change.

  Originally, the vehicle (not shown) traveling in the direction of the arrow 18 passes through the side of the start controller 2 when the open / close bar 14 is in the closed position (FIG. 1 (a)). Although it must not be done, it may come into contact with the open / close bar 14 due to an excessive speed or carelessness of the driver. In such a case, in order to prevent serious damage to the vehicle and the start controller, the bar holder 12 and the opening / closing bar 14 rotate about 90 degrees around the release shaft 16 in the substantially horizontal direction with respect to the arm 10, so-called It moves to the release position or the retracted position (FIG. 1 (b)). That is, when a force equal to or greater than a predetermined value is applied to the opening / closing bar 14 in the substantially horizontal direction, the bar holder 12 rotates about 90 degrees horizontally with respect to the arm 10 to retract the opening / closing bar 14 from the vehicle. In addition, the start controller 2 moves the bar holder 12 to the arm 10 unless a release return operation described later is performed so that the opening / closing bar 14 does not rotate (bounce back) from the release position toward the travel path and re-contact with the vehicle. On the other hand, a lock mechanism for preventing angular displacement is provided, which will be described later.

  Next, with reference to FIG. 2, a return mechanism for returning the open / close bar 14 from the release position shown in FIG. 1B will be described. As shown in FIG. 2, a link base 20 that is freely rotatable with respect to the rotation drive shaft 8 is attached to the rotation drive shaft 8. The link base 20 has a tongue portion 22 extending in the radial direction of the rotary drive shaft 8, and one end of a substantially rod-shaped link 24 is pivotally attached to the tip of the tongue portion 22. The other end of the link 24 is pivotally attached to the bar holder 12. Specifically, the other end of the link 24 is located on the side opposite to the main body 6 with respect to the portion of the bar holder 12 connected to the release shaft 16 when the open / close bar 14 is in the release position (the release shaft in the direction of the rotation shaft 8). 16 (refer to FIG. 8A described later), and in the example of FIG. 2, the other end of the link 24 is pivotally attached to the bar holder 12 by the shaft 26. The main body 6 is provided with a convex portion, that is, a stopper 28 that comes into contact with the tongue portion 22 when the link base 20 reaches a predetermined rotation angle (return operation start angle). In the example of FIG. It is assumed that the tongue 22 contacts the stopper 28 when 12 is in the release position and the rotation angle of the arm member 10 is 85 degrees.

  Next, the operation of the return mechanism will be described with further reference to FIGS. As shown in FIG. 1B, when some kind of impact or the like is applied to the opening / closing bar 14 and moved to the release position of the opening / closing bar 14, the arm 10 is moved to the rotational drive shaft 8 as a returning operation in the same manner as a normal opening operation. Is rotated from the closed position toward the open position (FIG. 1C).

  Here, as shown in FIG. 3A, when the arm 10 is rotated 85 degrees from the closed position, the tongue portion 22 of the link base 20 that has been rotated integrally with the arm 10 is fixed to the stopper 28 provided on the main body 6. Abut. Then, even if the arm 10 further rotates from this state, the rotation of the link base 20 is blocked by the stopper 28. Therefore, as shown in FIG. 8 (a), the bar holder is provided by the link 24 pivotally attached to the tongue portion 22. 12, a force for rotating the bar holder 12 around the release shaft 16 acts. Therefore, as shown in FIG. 1D and FIG. 3B, when the arm 10 rotates more than 85 degrees (for example, 90 degrees), the bar holder 12 normally moves around the release shaft 16 with respect to the arm member 10. It turns to the position of. As shown in FIG. 3 (c), when the arm 10 further rotates (for example, 105 degrees), the bar holder 12 further approaches the normal position, and as shown in FIGS. 1 (e) and 3 (d), the arm When 10 rotates 110 degrees (return operation end angle), the bar holder 12 returns to the normal angular position with respect to the arm 10. Then, as shown in FIG. 1 (f), the arm 10 is returned to the normal open position (the angular position of 90 degrees in the illustrated example), and the release return operation is completed.

  As described above, since the link base 20 can freely rotate with respect to the rotary drive shaft 8, the link base 20 can also be displaced with respect to the arm 10. However, since the link base 20 is connected to the bar holder 12 via the link 24, the link base 20 is not limited as long as the angle of the bar holder 12 with respect to the arm 10 does not change (the bar holder 12 does not rotate around the release shaft 16). It will rotate integrally with the arm 10. In other words, when the link base 20 contacts the stopper 28 and only the arm 10 rotates, the link 24 applies a force to pull the bar holder 12 (open / close bar 14) from the release position to the normal position (open position). . By utilizing this fact, the present invention can return the open / close bar 14 from the release position only by rotating the rotary drive shaft 8 without providing a separate driving means. Further, the release return mechanism for this purpose can be composed of relatively compact members such as the link base 20, the link 24, and the stopper 28 provided around the rotary drive shaft 8, and the area occupied by the start controller 2 is hardly increased by the return mechanism. .

  Next, a lock mechanism for preventing the bar holder 12 from being angularly displaced with respect to the arm 10 will be described with reference to FIGS. 4 to 7, the above-described link base and link are not shown for the sake of clarity. First, as shown in FIG. 4, the surface 30 of the arm 10 facing the main body 6 has an attachment hole 32 that engages with the rotation drive shaft 8 (see FIG. 2) of the main body 6, whereby the arm 10 rotates. As the shaft 8 rotates, it rotates relative to the main body 6. On the other hand, the bar holder 12 for fixing and holding the opening / closing bar 14 is pivotally attached to the arm 10 so as to be rotatable around the release shaft 16, and at least the opening / closing bar 14 extends substantially perpendicularly to the direction of the rotating shaft 8. Between the normal angular position (the state of FIG. 1A) and the release position (the state of FIG. 1B) in which the open / close bar 12 extends substantially parallel to the direction of the rotating shaft 8 (ie, at least about 90 degrees). It can be rotated. Further, the arm 10 has a projecting member 34 projecting from the surface 30 to the main body 6 side.

  FIG. 5 (a) is an external side view of the start controller 2 when the open / close bar 14 is in the release position (FIG. 1 (b)) in the vehicle traveling direction (arrow 18). These are figures which show the AA cross section of Fig.5 (a). The protruding member 34 shown in FIG. 4 is configured to be movable in a direction in which the protruding member 34 comes in contact with and separates from the main body 6 (up and down direction in FIG. 5B) as shown in FIG. 5B. The projecting member 34 preferably has a curved surface because it rides on a convex portion 50 on the main body 6 to be described later and is displaced. In the illustrated example, the projecting member 34 is formed as a disk-shaped member, but as a spherical or hemispherical member. Also good.

  The protruding member 34 is associated with a locking mechanism using a cam and a latch as shown in a broken line in FIG. 5B, and specifically, can rotate around the first pivot 36 inside the arm 10. Is connected to one end of a first latch 38 provided in the first latch 38. The other end opposite to one end of the first latch 38 with respect to the first pivot 36 is adapted to lock a rod-like member 40 disposed so as to extend in the longitudinal direction inside the arm 10. The pin-like member 42 provided on the rod-like member 40 is locked. The rod-shaped member 40 has a long hole 44 that engages with the first pivot 36, and thereby the inside of the arm 10 can be displaced in the longitudinal direction. Furthermore, the bar-shaped member 40 is configured so that the bar holder 12 can be rotated around the release shaft 16 with respect to the arm 10 by the displacement. Specifically, one end of the rod-like member 40 is pivotally attached to the tab-like member 46 that is substantially integral with the bar holder 12 via the second pivot shaft 48. However, as shown in FIG. 5B, while the first latch 38 is engaged with the pin-like member 42, the rod-like member 40 is displaced so as to rotate the bar holder 12 with respect to the arm 10 (FIG. 5). In (b), the opening / closing bar 14 is held in the release position.

  6A is an external side view of the start controller 2 when the return operation is started (see FIG. 3A) in the vehicle traveling direction (arrow 18), and FIG. It is a figure which shows the BB cross section of 6 (a). As shown in FIG. 6A, when the arm 10 is rotated by a predetermined angle (for example, 80 degrees from the state of FIG. 5) with respect to the main body 6 while the open / close bar 14 is in the release position, As shown in the broken line of (b), the protruding member 34 provided on the arm 10 engages so as to ride on the convex portion 50 provided on the side surface of the main body 6. The convex portion 50 may have any shape as long as it can displace the protruding member 34 with respect to the arm 10 during the return operation, but it is preferable to form a slope for a smoother operation. . Due to the displacement of the projecting member 34, the first latch 38 connected to the projecting member 34 rotates about the first pivot 36 (counterclockwise in the illustrated example), and the first latch 38 moves from the pin-shaped member 42 of the link member 40. The locking mechanism that separates and holds the open / close bar 14 in the release position is released. The convex portion 50 is provided at a position where the protruding member 34 can be displaced (that is, the lock mechanism is released) before the stopper 28 contacts the tongue portion 22 of the link base 20.

  FIG. 7A is an external side view of the start controller 2 when the return operation is completed (see FIG. 3D) in the vehicle traveling direction (arrow 18), and FIG. It is a figure which shows CC cross section of 7 (a). As described with reference to FIG. 3 and the like, in the state of FIG. 7, the bar holder 12 is returned from the release position to the normal position by the return mechanism. Although FIG. 7 shows the time when the return operation is completed, the positional relationship between the bar holder 12 and the arm 10 at this time is the same as that during a normal opening / closing operation. Here, during normal operation, it is necessary to prevent the opening / closing bar 14 from easily moving to the release position unless an impact such as a vehicle coming into contact with the opening / closing bar 14 is applied. Therefore, in the present embodiment, as shown in the broken line in FIG. 7B, a latching mechanism that holds the bar holder 12 in the normal position is provided. Specifically, the second latch 54 is provided on the tab-like member 56 to which the rod-like member 50 is connected. When the opening / closing bar 14 (bar holder 12) is in the normal position, the second latch 54 is hooked on the engaging member 56. The In the illustrated example, the engaging member 56 is a pin-like member extending between two plate-like members 58 having substantially the same shape and arranged in parallel. The plate-like member 58 and the pin-like member 56 are integrally formed in the arm 10. It is possible to rotate around the third pivot 60 provided in. The plate-like member 58 is urged in the rotation direction (clockwise direction) of the bar holder 12 by a spring 62, and further, a notch 64 provided in the plate-like member 58 and a protruding portion fixed inside the arm 10 (illustrated example). In this case, the pin-like member 66 is normally held at the position shown in FIG.

  Here, when the open / close bar 14 is in the closed position (therefore, the positional relationship between the arm 10 and the bar holder 12 is the same as in FIG. 7B), a vehicle or the like comes into contact and a load of a certain level acts on the open / close bar 14. Then, a force to rotate around the release shaft 16 toward the release position (counterclockwise) acts on the tab-like member 46 of the bar holder 12, and the force is against the urging force of the spring 62 and the plate-like member. 58 is rotated around the third pivot 60, whereby the pin-like member 56 and the second latch 54 are not latched, and the bar holder 12 and the open / close bar 14 are moved to the release position as shown in FIG. 6B. . By appropriately setting the spring constant of the spring 62, it is possible to set how much force is applied to the open / close bar 14 when the open / close bar 14 moves to the release position.

  In this embodiment, the return operation rotation angle range is 85 to 110 degrees, that is, the rotation angle of the arm 10 (rotation drive shaft 8) at the start of the release return operation (FIG. 3A) is 85 degrees, and the release return operation is performed. The rotation angle at the time of completion (FIG. 3D) is 110 degrees, but this is an example. For example, the angle at the start of the return operation may be made smaller, but for safety reasons, it is desired that the opening / closing bar 14 does not enter the vehicle passage space during the return operation. The arm rotation angle is preferably 20 degrees or more, 30 degrees or more, 40 degrees or more, 50 degrees or more, 60 degrees or more, 70 degrees or more, 75 degrees or more, more preferably 80 degrees or more, and further preferably 85 degrees or more. . Note that the optimum value of the arm rotation angle at the start of the return operation can be determined according to the shape of the vehicle traffic space. Further, the rotation angle of the arm 10 when the return operation is completed is preferably somewhat larger than an angle (for example, 85 to 90 degrees) that is a normal open position, and is selected from a range of 90 degrees to 130 degrees, for example. It is preferable to set 110 degrees, 90 degrees, 95 degrees, 100 degrees, 105 degrees, 115 degrees, 120 degrees, 125 degrees, or 130 degrees as shown in the illustrated example. The angular position at the start of the return operation or completion of the return operation can be set as appropriate based on the position of the stopper 28, the dimensions of the link base 20 and the link 24, the pivot attachment position of the link 24 in the bar holder 12, and the like.

  FIG. 8 is a front view and a side view of the release return mechanism when the open / close bar 14 is in the release position. As described above, the end of the link 24 on the bar holder 12 side is released in the axial direction of the rotational drive shaft 8 (left and right in FIG. 8A) rather than the portion of the bar holder 12 connected to the release shaft 16. The bar holder 12 is pivoted around the release shaft 16 by the force received from the other end of the link 24 when the rotary drive shaft 8 is further rotated from the return operation start angle. It rotates (clockwise in FIG. 8A).

  On the other hand, FIG. 9 is a front view and a side view of the release return mechanism when the open / close bar 14 is in the normal open position. As shown in FIG. 9 (a), in the normal open position, the link 24 is at a lower position than the release position (FIG. 8 (a)). In other words, as shown in FIG. The rotation angle 20 is smaller than when the open / close bar 14 is in the release position (FIG. 8B). Accordingly, the tongue portion 22 of the link base 20 does not contact the stopper 28 in the normal open position, and therefore the link base 20 does not contact the stopper 28 during the normal opening / closing operation. Is not affected at all.

  Although not shown, the start controller 2 according to the present invention includes a detection unit that detects that the opening / closing bar 14 has moved to the release position, and a detection unit that detects that the opening / closing bar 14 has moved to the release position. When it is detected, alarm means for issuing an alarm to a worker in a booth or the like away from the start controller 2 can be provided. Further, the returning operation described above may be performed by an operator who has received an alarm instructing the start controller 2 by remote control from within the booth or the like, and the start controller 2 may be operated based on the detection result of the detecting means. It may be performed automatically without waiting for the operator's instruction.

  In the present invention, when the opening / closing bar 14 is returned from the release position, no drive source or drive mechanism other than the drive source (such as a servo motor) for rotating the arm 10 is required. In other words, the drive source provided in the start controller 2 can be only for rotating the arm 10. Therefore, according to the present invention, there is provided a compact and low-cost start controller having a small number of components, while having a configuration in which the opening / closing bar can be automatically restored.

2 Start Control Machine 6 Main Body 10 Arm 12 Bar Holder 14 Opening / Closing Bar 16 Release Shaft 20 Link Base 22 Tongue 24 Link 28 Stopper 34 Projecting Member 40 Link Member 46 Tab-shaped Member 50 Convex

Claims (4)

A main body, an arm rotatably attached to a rotational drive shaft that rotates relative to the main body, and a bar holder attached to the arm so as to be rotatable about a release axis perpendicular to the rotational drive shaft; An open / close bar fixed at one end to the bar holder, and the open / close bar extends substantially horizontally by the drive of the rotary drive shaft to prevent passage of the vehicle, and is perpendicular to the close position. It is configured to be able to move between an open position that rotates in the direction and allows the vehicle to pass, and rotates in a substantially horizontal direction around the release axis with respect to the arm when in the closed position. In the start control machine configured to be movable to the release position,
A link base attached so as to be freely rotatable with respect to the rotational drive shaft;
A link having one end pivotally attached to the link base and the other end pivotally attached to the bar holder;
A stopper provided on the main body so as to come into contact with the link base when the rotation drive shaft rotates at a predetermined angle when the open / close bar is in the release position;
With
When the open / close bar is in the release position, the bar holder is rotated around the release shaft by a force received from the other end of the link when the rotation drive shaft further rotates from the predetermined angle, A start controller configured to return the opening / closing bar from the release position.   The other end of the link is closer to the main body than the release shaft in the axial direction of the rotational drive shaft than the portion of the bar holder connected to the release shaft when the open / close bar is in the release position. The start controller according to claim 1, wherein the start controller is pivotally attached to a remote site.   The return operation rotation angle range of the arm is limited to a rotation angle range of 20 degrees to 130 degrees when the rotation angle position of the rotation drive shaft when the open / close bar is in the closed position is zero degrees. The start controller according to claim 1 or 2.   A lock mechanism for holding the open / close bar at the release position is provided in the arm, and is associated with the lock mechanism and protrudes from the surface of the arm facing the main body so as to be displaceable with respect to the surface. A member is provided, and a surface of the main body facing the arm is provided with a convex portion that contacts the protruding member and displaces the protruding member before the rotation angle of the arm enters the return operation rotation angle range. The start controller according to any one of claims 1 to 3, wherein the protruding member is configured to release the lock mechanism while being displaced in contact with the convex portion.

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