JP3954562B2 - Entrance gate apparatus and entrance gate opening and closing method using the same - Google Patents

Description

The present invention relates to an entrance / exit gate device that is installed to prevent entry of a vehicle during a holiday at a gas station or the like, and an entrance / exit gate opening / closing method using the same.

  In recent years, due to revisions to the Fire Service Act, it has been approved that only tank trucks can unload storage tanks, so in gas stations, the gas stations are not in busy daytime when the gas stations are in operation, but the gas stations are closed. The number of cases of unloading during the night or during holidays is increasing.

  However, at gas stations that are closed, it is common for an entry prevention rope to be stretched around the site boundary to prevent entry of vehicles and the like. Therefore, when a lorry vehicle comes to the filling station to unload the storage tank, temporarily park the lorry vehicle on the shoulder of the road, remove the entry prevention rope and enter the filling station. After exiting, the lorry is parked again on the shoulder, and the rope is hung on the road before returning to the oil tank.

  However, during nights when the gas station is closed or during holidays, the traffic volume is less than during the hours when the gas station is open, but there is much traffic on the main roads, etc. There is a problem that the traffic of other vehicles is obstructed, and the lorry driver himself is exposed to danger, which may cause a traffic accident and is very dangerous.

  In addition, even if the gas station is closed or at night, it is not possible to enter the gas station because it is not possible to park a lorry car on the shoulder of a roadside where there is particularly heavy traffic. In some cases, unloading cannot be performed, and it is necessary to return to the oil tank station as it is, resulting in a significant loss of time and labor costs.

  On the other hand, as disclosed in Patent Document 1, for example, an automatic gate device using radio has been developed, but it is expensive and requires extensive installation work. Has not reached.

In addition, currently marketed automatic gate devices employ electricity as a driving source, and if used in a gas station where flammable gas stays, there is a risk of ignition and explosion.
JP 2000-11297 A

The problem to be solved by the present invention is to provide a mechanical entrance / exit gate device that can be opened / closed without stopping the vehicle outside the site, and an entrance / exit gate opening / closing method using the same.

Entry gate apparatus of the present invention is an entry gate device for opening the doorway by closing the entrance by stretched string-like member, to relax the string-like member stretched, and payout of the string-shaped member Releases the storage mechanism that performs winding, the tension mechanism that constantly applies a rotational force in the winding direction of the string-like member to the storage mechanism, the ratchet mechanism that stops rotation of the storage mechanism in the winding direction, and the ratchet mechanism. The ratchet release mechanism includes a ratchet release mechanism and a mechanical timer that operates the ratchet release mechanism. The ratchet release mechanism includes a ratchet release lever and a presser arm, each of which has a base end rotatably attached to the rotation axis. A ratchet mechanism pawl is fixed to the base end of the release lever, and the mechanical timer is rotated by a spring. The knob that locks the tip of the presser arm is provided, and when the tip of the presser arm is locked by the knob of the mechanical timer, the tip of the presser arm is then moved away from the knob by the rotation of the mechanical timer. The holding arm rotates due to its own weight, and its tip part contacts the tip part of the ratchet release lever, thereby rotating the ratchet release lever. By the rotation of this ratchet release lever, the ratchet mechanism pawl and the gear engage with each other. Is released and the ratchet mechanism is released.

  The storage mechanism, tension mechanism, ratchet mechanism, and ratchet release mechanism described above are completely mechanical without using electricity or air.

The doorway gate opening and closing method of the present invention includes a storage mechanism that pays out and winds up the string-like member, a tension mechanism that constantly applies a rotational force in the winding direction of the string-like member to the storage mechanism, and winding up of the storage mechanism. Provided with a ratchet mechanism that stops rotation in the direction, a ratchet release mechanism that releases the ratchet mechanism, and a mechanical timer that operates the ratchet release mechanism. An entrance gate opening and closing method for opening and closing the entrance when the vehicle enters the site from the entrance and exits from the site, using an entrance gate device that opens the entrance by relaxing the string-like member, When the vehicle enters the site from the doorway, the string member is hooked by the vehicle and proceeds as it is, and when the vehicle completely enters the site, Manually pull out the lace member until both can pass over the lace member, and when the vehicle leaves the site, the lace member until the vehicle can pass over the lace member. The mechanical timer is started in the state where it is manually pulled out and slackened, and in this state, the vehicle is passed over the string-like member to exit the site, and the mechanical timer is started from the start. When time elapses, the ratchet release mechanism is actuated by a mechanical timer to release the ratchet mechanism, whereby the tension mechanism rotates the rotating drum in the winding direction, winds and stretches the string-like member, and the entrance / exit It is characterized by closing. Also, if the doorway gate device is not equipped with a mechanical timer, when the vehicle leaves the site, the string member is manually pulled out until the vehicle can pass over the string member. The vehicle is moved so that it fits within the site while straddling the top of the member, and then the string member is applied to the rear part of the vehicle, and in that state, the ratchet release mechanism is operated to release the ratchet mechanism, thereby the tension mechanism Rotates the rotary drum in the winding direction, gradually winds the string-like member as the vehicle leaves, and closes the doorway by stretching the string-like member when the vehicle completely leaves the site.

  In addition, the doorway gate opening / closing method of the present invention includes a storage mechanism for paying out and winding the stretchable string-like member, a rotation operation handle for rotating the storage mechanism in the winding direction, and a payout direction of the storage mechanism. A ratchet mechanism for restraining the rotation of the ratchet and a ratchet release mechanism for releasing the ratchet mechanism, by closing the entrance by closing the stretchable string-like member and relaxing the stretched string-like member An entrance / exit gate opening / closing method that uses an entrance / exit gate device that opens an entrance / exit and opens / closes the entrance / exit when a vehicle enters or exits the site from the entrance / exit, and the vehicle enters the site from the entrance / exit. When the vehicle is fully hooked by the vehicle and the string member is extended, the ratchet solution is released. After the ratchet mechanism is released by the mechanism, the string-like member is manually pulled out and slackened until the vehicle can pass over the string-like member. In a state where the string-like member is manually pulled out until it can pass over, the vehicle is moved so as to fit within the site while straddling the string-like member, and then the string-like member is applied to the rear part of the vehicle, In the state, when the stretched string-like member is restored, the string-like member is wound up with the rotary operation handle to the position where the string-like member is stretched at the doorway, and the stretched string-like shape as the vehicle leaves When the member is restored and the vehicle completely leaves the site, the string-like member is stretched to close the entrance / exit.

In the invention according to claims 1 to 3 of the present application, when the vehicle enters a site such as a gas station, the vehicle hooks the string-like member so that the string-like member is automatically paid out and exits from the site. Sometimes the string member is automatically wound by releasing the ratchet mechanism, so that the entrance / exit can be entered and exited without stopping the vehicle on the road shoulder. Moreover, in the invention which concerns on Claim 4 of this application, it can enter / exit similarly, without stopping a vehicle on a road shoulder by utilizing the elasticity of a string-like member.

  As described above, according to the present invention, it is not necessary to stop the road shoulder of the vehicle when entering and exiting the doorway, so that it does not obstruct the traffic of other vehicles, and the driver does not need to get off the road. There will be no traffic accidents causing it, and safety will be greatly improved.

  In addition, since the doorway gate device of the present invention has a completely mechanical structure and can be easily installed, the cost for introduction becomes very low.

  Furthermore, when the present invention is applied to a gas station entrance / exit, there is no need to park a lorry vehicle on the shoulder for entry / exit, so there is no waste such as returning to the oil tank station without being able to unload. , Loss of labor costs, etc. is eliminated.

  In addition, since it is completely mechanical and does not use any electricity, there is no danger of flammable gas igniting or exploding in the gas station, and safety is greatly improved.

  Embodiments of the present invention will be described below with reference to an embodiment in which the present invention is applied to an entrance / exit gate device in a gas station.

  FIG. 1 is a plan view showing an entrance / exit gate device according to a first embodiment of the present invention, and FIG. 2 is an enlarged view of a main part of FIG.

  The doorway gate device 100 is installed near the doorway of the gas station, and the rope 1 is stretched by attaching the tip of the rope 1 as a string-like member to a support P standing on the site of the gas station. The doorway is closed by opening the doorway by relaxing the stretched rope 1 or by storing the entire rope 1 in the gate device.

  The entrance / exit gate device 100 includes a rotating drum 2 as a storage mechanism for discharging and winding the rope 1, a tension mechanism 3 for constantly applying a rotational force in the winding direction of the rope 1 to the rotating drum 2, and the rotating drum 2. The main components are a ratchet mechanism 4 that stops rotation in the winding direction, a ratchet release mechanism 5 that releases the ratchet mechanism 4, and a timer 6 that automatically activates the ratchet release mechanism after a predetermined time. The components are stored in the storage box 7. The storage box 7 is provided with a door 7a that can be opened and closed.

  The rotating drum 2 can be rotated in both the paying-out direction and the winding direction of the rope 1 by rotatably attaching the rotating shaft 2 a to the holding ribs 8 and 9.

  The tension mechanism 3 is composed of a spring, and by fixing one end of the spring to the holding rib 8 and the other end to the rotating shaft 2a of the rotating drum 2, the rotating force is always applied to the rotating drum 2 in the winding direction of the rope 1. It comes to grant.

  FIGS. 3A and 3B are enlarged views taken along line AA in FIG. 1. FIG. 3A shows a state in which the ratchet mechanism is operating, and FIG. 3B shows a state in which the ratchet mechanism is released.

  The ratchet mechanism 4 includes a gear 4a and a pawl 4b that are fixed to the rotary shaft 2a of the rotary drum 2 and rotates together with the rotary shaft 2a, and the pawl 4b is engaged with the gear 4a in the operation state shown in FIG. The gear 4a can rotate in the direction in which the rotary drum 2 pays out the rope 1 (clockwise direction in FIG. 3), but in the direction in which the rotary drum 2 winds up the rope 1 (counterclockwise direction in FIG. 3). Can no longer rotate.

  The ratchet release mechanism 5 includes a ratchet release lever 5a and a pressing arm 5b. The ratchet release lever 5a is rotatably attached around the rotation shaft 5a-1, and a pawl 4b of the ratchet mechanism 4 is fixed to the base end of the rotation shaft 5a-1. As shown in FIG. 3B, when the pressing arm 5b is brought into contact with the operation portion 5a-2 at the tip of the ratchet releasing lever 5a, the ratchet releasing lever 5a is counterclockwise in FIG. As a result, the engagement between the pawl 4b of the ratchet mechanism 4 and the gear 4a is released.

  The timer 6 is for automatically operating the ratchet release mechanism 5 after a predetermined time. When the timer 6 is moved in a predetermined direction (counterclockwise in FIG. 3), the spring 6 is rotated in the opposite direction by a spring thereafter. It is. In order to use the timer, first, the knob 6a of the timer 6 is pinched to rotate the timer 6 counterclockwise as shown in FIG. 3A, and the pressing arm 5b is locked to the knob 6a. Thereafter, the timer 6 rotates in the clockwise direction as shown in FIG. 3 (b), and accordingly, the pressing arm 5b is detached from the knob 6a and rotated counterclockwise by its own weight, thereby operating the ratchet release lever 5a. It contacts the part 5a-2. Then, as described above, the ratchet release mechanism 5 operates and the ratchet mechanism 4 is released.

  Hereinafter, a method of using the entrance gate apparatus 100 will be described. FIG. 4 is an explanatory view showing a method of use when a lorry vehicle enters, and FIG. 5 is an explanatory view showing a method of use immediately after the lorry vehicle enters and when leaving.

  First, the lorry driver causes the lorry vehicle R to enter the site of the gas station as shown in FIG. When the lorry driver enters the lorry vehicle R as it is, the lorry vehicle R moves by hooking the rope 1 as shown in FIG. At this time, since the rope 1 is paid out from the rotating drum 2, the lorry vehicle R can enter without being obstructed by the rope 1.

  After that, as shown in FIG. 4C, when the lorry vehicle R completely enters the premises of the gas station, the lorry driver D gets off the lorry vehicle R so that the lorry vehicle R can pass on the rope 1. Pull out the rope 1 manually until it stops. As a result, as shown in FIG. 4D, the lorry vehicle R can pass through the rope 1 and enter the filling station. At this time, since the rotation of the rotary drum 2 in the winding direction is stopped by the ratchet mechanism 4 described above, the rope 1 is not wound up.

  When the lorry vehicle R completely gets over the rope 1, the lorry driver D gets out of the lorry vehicle R, opens the door 7a of the storage box 7, and operates the operation portion 5a-2 of the ratchet release mechanism 5 described above to ratchet. Release mechanism 4. Thereby, the rotary drum 2 is rotated in the winding direction by the tension mechanism 3 described above, and the rope 1 is wound and stretched as shown in FIG.

  At the time of exit, the lorry driver D manually pulls out the rope 1 and loosens it until the lorry vehicle R can pass over the rope 1 as shown in FIG. Then, as described above with reference to FIG. 3, the timer 6 is rotated so that the pressing arm 5b of the ratchet releasing mechanism 5 is locked to the knob 6a (the state shown in FIG. 3A). In this state, the ratchet release mechanism 5 does not operate, so that the rotation of the rotary drum 2 in the winding direction is stopped by the ratchet mechanism 4 and the rope 1 is not taken up.

  In this state, as shown in FIG. 5 (c), the lorry vehicle R passes over the rope 1 and moves out of the site of the gas station. Thereafter, when a predetermined time elapses, the presser arm 5b of the ratchet release mechanism 5 is detached from the knob 6a of the timer 6 by the rotation of the timer 6 as described above with reference to FIG. It rotates and abuts against the receiving portion 5a-2 of the ratchet release lever 5a. As a result, the ratchet release mechanism 5 is activated and the ratchet mechanism 4 is released, so that the rotary drum 2 is rotated in the winding direction by the tension mechanism 3, and the rope 1 is wound up as shown in FIG. 5 (d). Will be stretched. As a result, the door of the filling station is closed.

  As described above, according to the present embodiment, it is possible to enter and leave the gas station without temporarily stopping the lorry vehicle on the road shoulder. In addition, the entrance / exit gate device 100 of the present embodiment is easy to install because it is a complete mechanical type that does not use any electricity or air, and there is a risk of flammable gas igniting or exploding in a gas station. There is nothing and safety is greatly improved.

  FIG. 6 is a plan view showing a main part of an entrance / exit gate device according to a second embodiment of the present invention. The entrance / exit gate device 200 of the present embodiment is the same as the entrance / exit gate device 100 of the first embodiment, except that the pressing arm 5b of the ratchet release mechanism 5 and the timer 6 are not provided in the entrance / exit gate device 100 of the first embodiment. Since it has a structure, the same code | symbol is attached | subjected to the same structure and the description is abbreviate | omitted.

  Hereinafter, the usage method of the entrance / exit gate apparatus 200 of a present Example is demonstrated. Since the usage method at the time of entry is the same as that of the first embodiment, only the usage method at the time of exit will be described.

  FIG. 7 is an explanatory diagram showing a method of use when leaving a lorry vehicle. First, as shown in FIG. 7A, the lorry vehicle R is moved so as to be within the site of the gas station while straddling the slackened rope 1. Next, the lorry driver D once gets off the lorry vehicle R, applies the rope 1 to the rear portion of the lorry vehicle R, and manually operates the ratchet release mechanism 5 in this state to release the ratchet mechanism 4. As a result, the rotary drum 2 is rotated in the winding direction by the tension mechanism 3, and the rope 1 is wound up and strung against the rear portion of the lorry vehicle R as shown in FIG.

  Thereafter, as the lorry vehicle R exits, the rope 1 is gradually wound up. When the lorry vehicle R completely exits the site of the filling station, the rope 1 is properly stretched as shown in FIG. As a result, the entrance of the filling station is closed.

  As described above, in this embodiment as well as in the first embodiment, it is possible to enter and exit the gas station without temporarily stopping the lorry vehicle on the road shoulder. In addition, since it is a completely mechanical type that does not use electricity or air, installation is easy, and there is no danger of flammable gas igniting or exploding in the gas station, greatly improving safety. .

  8A and 8B show an entrance / exit gate device according to a third embodiment of the present invention, in which FIG. 8A is a plan view and FIG. 8B is a side view showing the main part of FIG.

  Similarly to the first and second embodiments, the gate device 300 according to the present embodiment is installed in the vicinity of the entrance of the gas station, and the rope 10 is attached to the column P standing on the site of the gas station. The entrance is closed by attaching the tip of the rope 10, and the entrance is opened by relaxing the stretched rope 10.

  The entrance / exit gate device 300 includes a rotary drum 20 for discharging and winding the rope 10, a rotation operation handle 30 for rotating the rotary drum 20 in the winding direction, and a ratchet for stopping the rotation of the rotary drum 20 in the discharge direction. The mechanism 40 and the ratchet release mechanism 50 that releases the ratchet mechanism 40 are main components, and these components are stored in a storage box 60. The storage box 60 is provided with a door 60a that can be opened and closed.

  The rope 10 is made of a material such as an elastic rubber string, and the tip thereof is fixed to the column P by a hook 10a.

  The rotary drum 20 is rotatable in both the paying-out direction and the winding direction of the rope 10 by rotatably attaching the rotary shaft 20a between the holding ribs 70 and 80.

  The rotary operation handle 30 is fixed to one end of the rotary shaft 20a of the rotary drum 20, and the rotary drum 20 can be manually rotated by rotating the rotary operation handle 30.

  The ratchet mechanism 40 includes a gear 40a and a pawl 40b that are fixed to the rotary shaft 20a of the rotary drum 20 and rotates together with the rotary shaft 20a, and the pawl 40b is engaged with the gear 40a in the operating state shown in FIG. The gear 40a can rotate in the direction in which the rotary drum 20 winds the rope 10 (clockwise direction in FIG. 8B), but in the direction in which the rotary drum 20 pays out the rope 10 (FIG. 8B). It cannot be rotated in the counterclockwise direction).

  The ratchet release mechanism 50 includes a ratchet release lever 50a. The ratchet release lever 50a is rotatably attached around the rotation shaft 50b, and a pawl 40b of the ratchet mechanism 40 is fixed to the proximal end on the rotation shaft 50b side. Then, by manually operating and rotating the ratchet release lever 50a, the engagement between the pawl 40b of the ratchet mechanism 40 and the gear 40a is released.

  Hereinafter, the usage method of the entrance gate apparatus 300 of a present Example is demonstrated. FIG. 9 is an explanatory diagram illustrating a usage method when a lorry vehicle enters, and FIG. 10 is an explanatory diagram illustrating a usage method when the lorry vehicle leaves.

  First, the lorry driver causes the lorry vehicle R to enter the site of the gas station as shown in FIG. When the lorry driver enters the lorry vehicle R as it is, the lorry vehicle R advances by hooking the rope 10 as shown in FIG. At this time, since the ratchet mechanism 40 is operated, the rope 10 is not paid out from the rotary drum 20, but since the rope 10 is made of a stretchable material, the lorry vehicle R supplies oil while extending the rope 10. You can enter the site.

  After that, as shown in FIG. 9 (c), when the lorry vehicle R has completely entered the premises of the gas station, the lorry driver D once gets out of the lorry vehicle R, and the ratchet release mechanism 50 described above with reference to FIG. The ratchet release lever 50a is manually operated to release the ratchet mechanism 40. As a result, the rope 10 can be paid out from the rotating drum 20, and the lorry driver D manually pulls out the rope 10 and loosens it until the lorry vehicle R can pass over the rope 10. Accordingly, as shown in FIG. 9D, the lorry vehicle R can pass through the rope 10 and enter the filling station.

  At the time of leaving, as shown in FIG. 10 (a), the lorry vehicle R is moved to a position that fits within the site of the gas station while straddling the slack rope 10. Next, the lorry driver D gets out of the lorry car R and, as shown in FIG. 10B, applies the rope 10 to the rear part of the lorry car R, and pushes the rotation operation handle 30 until the rope 10 reaches a specified position. Wind the rope 10 using. At this time, the rope 10 is in an extended state, and the prescribed position is a position where the rope 10 is stretched at the doorway when the extended rope 10 is restored.

  Thereafter, when the lorry vehicle R exits, the rope 10 stretched along with it is restored, and when the lorry vehicle R completely exits the site of the filling station, the rope 10 is properly tensioned as shown in FIG. 10 (c). It will be installed and the entrance of the filling station will be closed.

  As described above, also in this embodiment, by using the stretchability of the rope 10, it is possible to enter and exit the gas station without temporarily stopping the lorry vehicle on the road shoulder. In addition, since it is a completely mechanical type that does not use electricity or air, installation is easy, and there is no danger of flammable gas igniting or exploding in the gas station, greatly improving safety. .

  The present invention is applicable to gate devices installed at entrances and exits of various facilities including a gas station.

It is a top view which shows the entrance / exit gate apparatus which concerns on 1st Example of this invention. It is an enlarged view of the principal part of FIG. It is an enlarged view by the AA line arrow of Drawing 1, (a) shows the state where the ratchet mechanism is operating, and (b) shows the state where the ratchet mechanism is released. It is explanatory drawing which shows the usage method of the doorway gate apparatus of 1st Example at the time of approach of a lorry vehicle. It is explanatory drawing which shows the usage method of the entrance / exit gate apparatus of 1st Example immediately after approach of a lorry vehicle, and at the time of exit. It is a top view which shows the principal part of the entrance / exit gate apparatus which concerns on 2nd Example of this invention. It is explanatory drawing which shows the usage method of the entrance / exit gate apparatus of 2nd Example at the time of leaving of a lorry vehicle. The entrance gate apparatus which concerns on 3rd Example of this invention is shown, (a) is a top view, (b) is a side view which shows the principal part of (a). It is explanatory drawing which shows the entrance / exit gate apparatus usage method of 3rd Example at the time of approach of a lorry vehicle. It is explanatory drawing which shows the entrance / exit gate apparatus usage method of 3rd Example at the time of leaving of a lorry vehicle.

Explanation of symbols

1 Rope (string member)
2 Rotating drum (storage mechanism)
2a Rotating shaft 3 Tension mechanism 4 Ratchet mechanism 4a Gear 4b Pawl 5 Ratchet release mechanism 5a Ratchet release lever 5a-1 Rotating shaft 5a-2 Operation part 5b Holding arm 6 Timer 6a Knob 7 Storage box 7a Door 8, 9 Holding rib 10 Rope DESCRIPTION OF SYMBOLS 20 Rotating drum 20a Rotating shaft 30 Rotation operation handle 40 Ratchet mechanism 40a Gear 40b Pawl 50 Ratchet releasing mechanism 50a Ratchet releasing lever 60 Storage box 60a Door 70, 80 Holding rib 100, 200, 300 Entrance / exit gate device of the present invention

Claims (4)

An entrance gate device that closes an entrance by stretching a string-like member and opens the entrance by relaxing the stretched string-like member,
A storage mechanism that pays out and winds the string-shaped member, a tension mechanism that constantly applies a rotational force in the winding direction of the string-shaped member to the storage mechanism, and a ratchet mechanism that stops rotation of the storage mechanism in the winding direction A ratchet release mechanism for releasing the ratchet mechanism, and a mechanical timer for operating the ratchet release mechanism,
The ratchet release mechanism includes a ratchet release lever and a holding arm, each of which has a base end rotatably attached to the rotation axis, and a ratchet mechanism pawl is fixed to the base end of the ratchet release lever.
The mechanical timer is rotated by a spring and has a knob that locks the tip of the holding arm.
When the tip of the holding arm is locked to the mechanical timer knob, the tip of the holding arm is released from the knob by the rotation of the mechanical timer, and then the holding arm rotates by its own weight, and the tip is ratcheted. An entrance gate device that abuts on the tip of the release lever, whereby the ratchet release lever rotates, and the engagement of the ratchet mechanism with the gear is released by the rotation of the ratchet release lever so that the ratchet mechanism is released . A storage mechanism that pays out and winds the string-shaped member, a tension mechanism that constantly applies a rotational force in the winding direction of the string-shaped member to the storage mechanism, and a ratchet mechanism that stops rotation of the storage mechanism in the winding direction A ratchet release mechanism for releasing the ratchet mechanism and a mechanical timer for operating the ratchet release mechanism, and closing the doorway by tensioning the string-like member and relaxing the tensioned string-like member An entrance gate opening and closing method that uses an entrance gate device that opens an entrance and exits when the vehicle enters and exits the site from the entrance and exits the site,
  When the vehicle enters the site from the doorway, it will be hooked by the vehicle and proceed as it is,
  Once the vehicle has fully entered the premises, the string member is pulled out manually until the vehicle can pass over the string member,
  When the vehicle leaves the premises, start the mechanical timer with the string member manually pulled out and slackened until the vehicle can pass over the string member,
  In this state, let the vehicle pass over the string-like member and leave the site,
  When a predetermined time has elapsed since the mechanical timer started, the ratchet release mechanism is activated by the mechanical timer to release the ratchet mechanism, which causes the tension mechanism to rotate the rotating drum in the winding direction, A doorway opening and closing method in which members are wound and stretched to close the doorway. A storage mechanism that pays out and winds the string-shaped member, a tension mechanism that constantly applies a rotational force in the winding direction of the string-shaped member to the storage mechanism, and a ratchet mechanism that stops rotation of the storage mechanism in the winding direction And a ratchet releasing mechanism for releasing the ratchet mechanism, using a doorway gate device that closes the doorway by stretching the string-like member and opens the doorway by loosening the stretched string-like member, A doorway opening and closing method for opening and closing the doorway when entering the site from the doorway and exiting from the site,
  When the vehicle enters the site from the doorway, it will be hooked by the vehicle and proceed as it is,
  Once the vehicle has fully entered the premises, the string member is pulled out manually until the vehicle can pass over the string member,
  When the vehicle leaves the site, move the vehicle so that it can fit within the site while straddling the string member, with the string member manually pulled out until the vehicle can pass over the string member. Let
  Thereafter, the string-like member is applied to the rear part of the vehicle, and in this state, the ratchet release mechanism is operated to release the ratchet mechanism, whereby the tension mechanism rotates the rotating drum in the winding direction, and the string is released as the vehicle is withdrawn. The entrance gate opening and closing method of closing a doorway by stretching a string-like member when the member is gradually wound up and the vehicle completely leaves the site.   A storage mechanism that pays out and winds an elastic string-like member, a rotation operation handle for rotating the storage mechanism in the winding direction, a ratchet mechanism that stops rotation of the storage mechanism in the payout direction, and a ratchet mechanism A ratchet release mechanism for releasing the door, using an entrance gate device that closes the entrance by stretching a stretchable string-like member and opens the entrance by relaxing the stretched string-like member, An entrance gate opening and closing method for opening and closing an entrance when a vehicle enters the site from the entrance and exits from the site,
  When the vehicle enters the site from the doorway, the vehicle proceeds as it is by hooking the string member by the vehicle and extending the string member,
  When the vehicle has completely entered the site, after releasing the ratchet mechanism with the ratchet release mechanism, the string member is manually pulled out to loosen until the vehicle can pass over the string member,
  When the vehicle leaves the site, move the vehicle so that it can fit within the site while straddling the string member, with the string member manually pulled out until the vehicle can pass over the string member. Let
  Thereafter, the string-like member is applied to the rear part of the vehicle, and when the stretched string-like member is restored in that state, the string-like member is moved with the rotary operation handle until the string-like member is stretched at the doorway. Winding,
  A doorway opening / closing method in which a string-like member is stretched to close an entrance when a stretched string-like member is restored as the vehicle leaves and the vehicle completely leaves the site.

Images