JPH0438389A - Automatic opening device of gate in construction site and automatic opening method - Google Patents

Abstract

PURPOSE:To automatically open a gate through a simple manipulation, by opening and closing the gate with the actuation of a switch upon receipt of the reflected light of a laser beam emitted from an automatic opening device. CONSTITUTION:A truck is stopped in front of an automatic opening device 1 equipped at the front side of a gate. Next, a laser beam radiated from an emitter 3 of an opening device 1 is reflected by a reflecting plate 7 of a driver's entrance-permit to the opening device 1. Next, the receiver 4 of the opening device 1 detects the reflected light 17 to actuate the switch 5 and then open the gate through a lead wire 6.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an automatic opening device for a gate at a construction site, etc. and an automatic opening method thereof, and more particularly, to an automatic opening device and an automatic opening method for a gate at a construction site, etc. This invention relates to an automatic gate opening device and its automatic opening method.

(Prior Art) Conventionally, there have been methods for mechanically performing the opening operation of this type of gate, such as those in which the gate is automatically opened and closed by operating a remote control provided on the gate,
There are devices that automatically open the gate by inserting a magnetic card or the like that has been registered in a predetermined manner into a reading device attached to the gate.

(Problem to be Solved by the Invention) However, in the former conventional device, for example, since it cannot be operated while riding in a truck, etc., the driver must first get off the truck and then operate the gate to open it. This is extremely troublesome for workers.

In addition, in the latter case, a predetermined frequency etc. must be set and registered in advance on a magnetic card, etc., and the registration process is complicated, and it is necessary to handle it without causing damage to the magnetic card. However, it was not easy to use.

Therefore, the present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to enable automatic opening of a gate by an extremely simple operation.

(Means for Solving the Problems) Therefore, in order to solve the above problems, the present invention provides an automatic opening device for opening an automatically openable gate, which includes a light emitting section 3 capable of emitting a laser beam 2; , a light receiving section 4 for receiving reflected light 17 obtained by reflecting the laser beam 2 emitted from the light emitting section 3 through a reflecting plate 7; This is an automatic opening device for a gate for a construction site, etc., consisting of a switch 5 that operates to open the gate 9.

The present invention also provides an automatic opening method for opening an automatically openable gate, in which the laser beam 2 emitted from the light emitting unit 3 of the automatic opening device 10 is reflected to the automatic opening device 1 by a reflection plate 7. , an automatic opening method for a gate for a construction site, etc., in which the reflected light 17 is detected by the light receiving part 4 of the automatic opening device 1, and the switch 5 of the automatic opening device 1 is activated to automatically open the gate 9. be.

(Function) Therefore, in the automatic gate opening device and automatic opening method characterized by the above configuration, first, the reflective plate 4 is opposed to the laser beam 2 emitted from the light emitting section 3 of the automatic opening device 1. When the laser beam 2 is reflected by the reflecting plate 7,
The reflected light 17 is received and detected by the light receiving section 4 of the automatic opening device 1, and the switch 5 is activated, and in conjunction with this, the gate 9 is automatically opened.

(Example) An example of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes an automatic opening device formed in the shape of a substantially rectangular box, which includes a light emitting part 3 capable of emitting a laser beam 2, and a device for receiving reflected light 17 from which the laser beam 2 is reflected. When the light receiving part 4 receives and detects the reflected light 17, a switch 5 installed in the automatic opening device 1 is actuated, and a lead wire is connected to the switch 5. 6 are connected. Incidentally, in order to reflect the laser beam 2, a card-shaped entrance permit 8 to which a reflecting plate 7 as shown in FIG. 2 is attached is used.

The automatic opening device 1 having such a configuration is used, for example, as follows.

First, as shown in FIG. 3, the automatic opening device 1 is attached to the front side 10 (road side) of the gate n9 which is configured to be able to open and close automatically, and the automatic opening device 1 is attached to the opening/closing drive part (not shown) of the internuclear gate n9.
Connect the lead wire 6. In addition, when closing the gate n9, for example, a sensor (not shown) that detects the movement of an object is provided on the back side 11 (on the site side) of the gate 9, and a switch (not shown) that is activated by the detection of the sensor is provided. An automatic closing device 12 having a built-in automatic closing device 12 is connected to the driving portion of the gate 9, so that the gate n9 in the open state can be closed.

Next, to explain the case where, for example, the truck 13 opens and closes the gate 9 to enter a construction site, first the truck 13 is stopped in front of the automatic opening device 1, and the reflective plate 7 of the entry permit 8 that is carried is used to open and close the gate 9. When the laser beam 2 emitted from the automatic opening device 1 is reflected toward the automatic opening device 1 as shown in FIG.
7 is detected and the switch 5 of the automatic opening device 1 is activated,
As a result, gate n9 will be automatically opened.

Thereafter, the sensor of the automatic closing device 12 detects that the truck 13 has entered the site, and the switch is activated to close the gate 9 which is in the open state as described above.

The opening/closing operation of the gate n9 is performed as described above, but since the driver of the truck 13 can operate the opening/closing operation of the gate n9 while riding the truck without getting off the vehicle, this series of operations is extremely difficult. This makes it easy to use and is particularly useful as an opening/closing means for unmanned automatic gates.

In addition, since the entry permit 8 has a simple structure in which the reflective plate 7 is attached to a card-like object, it is easy to manufacture and does not become complicated to handle.

In the above embodiment, a means for closing the gate 9 is provided, but such a means for closing the door 9 is not necessarily provided, and may be provided as appropriate depending on the mode of use, purpose of use, etc. Further, as this closing means, for example, the automatic closing device 12 is configured in the same manner as the automatic opening device 1 of the embodiment, and the gate 9 is configured to be closed using the reflective plate 7 of the entry permit 8. I don't mind.

Further, as a means for opening the gate 9 when exiting from the site to the road side, for example, a second switch 15 and a first switch 14 are arranged in this order at a predetermined interval from the entrance side in the site. Is possible. That is, each of these switches 14 and 15 can emit laser light 16,
In addition, the second switch 15 is configured to be turned on when the laser beam 16 is blocked by the passage of an object, and the second switch 15 is activated and turned on only when the first switch 14 is in the ON state. It is configured as much as possible. Each switch 14.15 is connected to the drive section of the gate 9 and the other switch 15.14 via lead wires (not shown). The switches 14 and 15 are configured to turn off after a predetermined time period has elapsed. Thus, it passes in front of the first switch 14 and the second
Passing in front of switch 15, each switch 14.15
Only when the gate jii9 is operated, the gate jii9 which is in the closed state will be opened in conjunction with the gate jii9. With this configuration, −
This eliminates the inconvenience of opening the gate 9 every time the user passes through, which would be the case with a configuration using only one switch, which is extremely convenient.

Furthermore, it goes without saying that the automatic opening device and automatic opening method according to the present invention are by no means limited to opening gates for construction sites, and can be widely applied to other gates.

In addition, the mounting location of the automatic opening device 1 and the like can be freely changed within the scope of the present invention.

(Effects of the Invention) As shown above, the present invention is an automatic gate opening system in which a laser beam is reflected by a reflecting plate, the reflected light is detected by a light receiving part of an automatic opening device, and the switch is activated to open the gate. 5. Because it is a means of opening. Unlike conventional opening means such as remote control, there is no need to get off the truck or the like to operate the gate, and the gate can be opened by simple operations while riding, making the series of operations extremely easy and quick. It was effective. In particular, it is optimal as an automatic opening means for unmanned gates.

Moreover, since the gate is opened simply by using a reflector, the device as a whole does not have a complicated structure and can be easily constructed, which is an excellent practical feature.

[Brief explanation of the drawing]

Figures 1 and 2 show an embodiment of the present invention, with Figure 1 being a perspective view of an automatic opening device, and Figure 2 being a front view of an entry permit. FIGS. 3(a) and 3(b) are schematic explanatory diagrams of the state of use. 1... Automatic opening device = 3... Light emitting part 5... Switch 17... Reflected light 2... Laser light 4... Light receiving part 9... Gate applicant Daishin Frame Co., Ltd. agent Patent Attorney Noboru Fujimoto Figure Figure Figure (B)

Claims (1)

[Scope of Claims] 1. An automatic opening device for opening a gate that can be automatically opened, comprising: a light emitting part 3 capable of emitting laser light 2; and a laser light 2 emitted from the light emitting part 3; a light receiving section 4 for receiving the reflected light 17 reflected via the reflecting plate 7;
An automatic gate opening device for a construction site, etc., comprising a switch 5 which is operated to open the gate 9 upon detection of the reflected light 17 received by the light receiving section 4. 2. An automatic opening method for opening an automatically openable gate, in which a laser beam 2 emitted from a light emitting unit 3 of an automatic opening device 1 is reflected to the automatic opening device 1 by a reflector 7, and the An automatic gate for construction sites, etc., characterized in that the reflected light 17 is received and detected by the light receiving part 4 of the automatic opening device 1, and the switch 5 of the automatic opening device 1 is activated to automatically open the gate 9. How to open.