JPS6334519B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is a device for inspecting passersby, which is installed at the entrance of a room where only authorized persons are allowed to enter, and has the function of checking whether or not the person is an authorized person. Concerning improvements to the door opening/closing mechanism of gates.

[Conventional technology]

In recent years, in vehicles such as airplanes and trains, inspection gates are used to check whether a person is carrying a pass permit card (hereinafter referred to as a permit card), for example, a ticket, or whether the ticket is fraudulent. ing. The inspection gate is equipped with an automatic door in the passageway to confirm the permission of passersby and prevent them from passing through. If an automatic door is installed in one of the aisles, a regular passerby uses a permit card to open the automatic door, and after passing through, there is a short period of time before the automatic door closes without holding the permit card. It was possible for people or unauthorized passers-by to pass through. In other words, it had the drawback of not being able to completely block passersby. Therefore,
Special Publication No. 47-41960 (hereinafter referred to as citation example)
The passage shown in Japanese Utility Model Publication No. 51-9918 (hereinafter referred to as Cited Example 2) is provided with a first door and a second door that are divided into left and right sides, and a detection device detects whether a passerby is between the two doors. By doing so, the above-mentioned drawbacks could be overcome by, for example, closing the first door and opening the second door.

In Cited Example 1, the operating mechanism for opening and closing each door is the fourth
Examples cited in the figures are shown in FIGS. 2 and 3. The operating mechanism in each cited example is provided with an independent drive device for opening and closing each door (for example, it is described in the first line and below of column 11 on page 6 of the specification of cited example 1).

[Problem that the invention seeks to solve]

As a result, if one of the independent drives fails, for example, one side of the first pair of doors fails;
Since the first door on one side is in an open state, passersby can illegally pass through the passage, and it no longer serves as an inspection gate.

An object of the present invention is to provide a door opening/closing mechanism for a passerby inspection gate that prevents passersby from illegally passing through the passage even if the drive device fails.

[Means for solving problems]

The door opening/closing mechanism of the present invention includes a main lever provided at the end of the main door, a first main link and a second link that are attached to both sides of the main lever and expand and contract in the entrance direction and the exit direction according to the opening and closing of the main door. A main link, an elongated hole formed at the ends of both main links, first and second auxiliary levers that move within the elongated hole in accordance with the expansion and contraction of the main link and rotate about an auxiliary shaft; 2
The present invention includes first and second auxiliary doors that open and close using an auxiliary shaft as a fulcrum in response to rotation of an auxiliary lever.

[Effect]

When the main lever rotates in the direction of opening the main door, the first main link and first auxiliary lever rotate in the direction of closing the first auxiliary door, and the second main link and second auxiliary lever rotate the main door and the second auxiliary lever. 2 Rotate in the direction to open the auxiliary door. In this state, even if the main door fails, the first auxiliary door remains closed, thereby preventing passersby from illegally passing through the passage inside the inspection gate.

〔Example〕

Embodiments of the present invention will be described below using a passerby inspection gate 1 shown in FIGS. 1 and 2.

The inspection gate body 2 includes a passage 5 extending from the inlet 3 to the outlet 4, and a gate 6 disposed between the inlet 3 and the outlet 4. In the passage 5 near the entrance 3 and the exit 4, first and second auxiliary doors 7 and 8, which open and close left and right, are supported by an auxiliary shaft 9.
These auxiliary doors 7 and 8 open and close in arrow directions A and B using an auxiliary shaft 9 as a fulcrum. A recessed auxiliary door storage section 10 formed in a part of the passage side 6A stores each of the closed auxiliary doors 7 and 8. A main door 11 provided on the gate 6 is supported by a main shaft 12 and opens and closes in arrow directions A and B using the main shaft as a fulcrum. The power for opening and closing is supplied to the main shaft 1 by a rotary drive device (not shown) located in the upper storage part 13 of the gate.
Perform step 2 by rotating. A recessed main door storage portion 14 is formed on one side 6A of the gate corresponding to the main shaft 12,
When the main door 11 rotates, one side 6 of the main door end 11A
In addition to preventing contact with A, the area for passersby to pass becomes wider, and the outer width dimension of the inspection gate can be reduced. A card reader section 15 for reading passersby's permission cards is attached to the other side 6B. The card reader section determines permission for passersby. The card reader section is installed, for example, on the outside of the first auxiliary door, and with permission from the reader section, when a passerby enters the first passageway The main door may also be opened. Matsuto switches 16 and 17 are laid out on the floor 5B. A door opening/closing mechanism chamber 18 formed on the lower side of the floor surface 5B has a door opening/closing operation shown in FIGS. 3 to 5 in which the first and second auxiliary doors 7, 8 and the main door 11 are interlocked with each other. This is done by the mechanism section 19.

The door opening/closing operation mechanism section 19 is configured as follows. That is, the main lever 31 is attached to the end of the main door, and the pins 32 provided on both sides of the main lever 31,
a first main link 24 supported via 35;
The second main link 36 operates according to the opening and closing of the main door 11.
Both auxiliary doors expand and contract in the side direction, and have a long hole 25 at the tip.
is formed.

Pins 23, 23' provided at one ends of the first and second auxiliary levers 21, 21' are inserted into elongated holes,
The other end is supported by the auxiliary shaft 9A. Therefore, the first and second auxiliary levers 21, 21' are
According to the rotation of the main door 11 and the first and second auxiliary doors 7, 8, the pins 23, 23' move in the elongated holes, using the auxiliary shafts 9A, 9A' as fulcrums to rotate clockwise and Rotate counterclockwise. The auxiliary link 22 rotates the auxiliary shaft 9A according to the rotation of the auxiliary doors 7 and 8.
Rotate clockwise or counterclockwise using the fulcrum as the fulcrum. One end of the connecting links 27, 27' engages with the other end of the auxiliary link 22 via a pin 26, and the other end engages with a second auxiliary lever 29 via a pin 28. The second auxiliary lever 29 is connected to the first auxiliary door 7 on the other side.
It is attached to one side of the auxiliary shaft 9B and supported by the auxiliary shaft 9B. Therefore, depending on the rotational force of both the auxiliary doors 7, 8 and the operation of the connecting links 27, 27', the auxiliary shaft 9B rotates clockwise or counterclockwise around the auxiliary shaft 9B.

Next, regarding the operation of the door opening/closing mechanism section 19, the third
This will be explained with reference to FIGS.

(1) When opening the first auxiliary door 7 If the first auxiliary door 7 is rotated in the direction of arrow B as shown in FIG.
2 rotates counterclockwise around the auxiliary shaft 9A. As a result, the pin 23 moves from the right side to the left side in the elongated hole 25 formed in the first main link 24, and the pin 26 rotates the communication link 27 counterclockwise.
The second auxiliary lever 29, which is engaged with the other end of the communication link 27 via the pin 28, rotates clockwise about the auxiliary shaft 9B to move the first auxiliary door 7 to the fourth position.
Open as shown. The levers, links, pins, etc. necessary to open and close the first auxiliary door in this way are referred to as a first link mechanism section 30.

(2) When closing the first auxiliary door 7 and opening the main door 11 and second auxiliary door 8 If the main shaft 12 is rotated clockwise in Fig. 4, the main door 11 and the main lever 31 will move clockwise. Rotate. As a result, the main door 11 is opened as shown in FIG. The first main link 24, which is engaged with the pin 32 provided on the main lever 31, rotates clockwise and moves in the same direction while the elongated hole 25 and pin 23 are engaged with each other. 1 link mechanism section 30 is as described above.
Since the operation is opposite to (1), the first auxiliary door 7 is closed (Fig. 5). Since the second main link 36 engaged with the pin 35 of the main lever 31 rotates clockwise, the second link mechanism section 40 that opens and closes the second auxiliary door 8 is connected to the first link mechanism section 30. Move in the opposite direction. Therefore, the second auxiliary door 8 changes from the closed state shown in FIG. 4 to the open state shown in FIG. If the main door 11 is closed in this state, the first main link 24 and the second main link 36 will rotate counterclockwise, but they will move while the elongated hole end of the second main link 36 and the pin 23 are engaged. Therefore, the second auxiliary door 8 can be closed as shown in FIG.

In this way, the fifth part of the door opening/closing mechanism section 19 of the present invention
In the state shown in the figure, if the rotation drive device of the main door 11 or the main door itself is broken and cannot be rotated, the pins 23, 23' of the first and second auxiliary levers 21, 21' will be at the ends of the elongated holes. Since the first and second auxiliary doors 7 and 8 are locked and cannot be rotated, the first auxiliary door 7 always blocks the passage 5, preventing passersby from illegally accessing the passage 5. can be prevented from passing. Furthermore, even if the first auxiliary door 7 fails and cannot rotate in the state shown in FIG.
Since the passageway 5 is blocked, passersby can be prevented from illegally passing through the passageway 5.

Further, in the present invention, when the main door 11 is opened and closed, the door opening/closing mechanism section 19 is configured which can open and close both the auxiliary doors 7 and 8 accordingly, so the structure can be simplified with fewer driving parts. It can be done.

Furthermore, when the main door 11 and the second auxiliary door 8 are opened as shown in FIG. 5, the grooves of the first main link 24 and the second main link 36 accommodate the main shaft 12, 36 and the main shaft 12 are prevented from being damaged, and the door opening/closing mechanism section 19 can be prevented from being damaged.

〔Effect of the invention〕

As described above, according to the door opening/closing mechanism of the passerby inspection gate of the present invention, even if the main door or the auxiliary door fails, one of the doors blocks the passage.
It is possible to prevent passersby from illegally passing through the passage.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an inspection gate shown as an embodiment of the present invention, FIG. 2 is a cross-sectional view taken along the line -- in FIG. 1, and FIGS. 3 to 5 are cross-sectional views taken along the line -- in FIG. . 3... Entrance, 4... Exit, 5... Passage, 7 and 8... First and second auxiliary doors, 11... Main door,
19...Door opening/closing mechanism section.

Claims (1)

[Claims] 1 The first and second auxiliary doors are rotatably supported on auxiliary shafts at the entrance and exit sides of the passage, the main shaft provided between both auxiliary doors, and the main door is rotated to open the main door. A main shaft that opens and closes, a main lever that rotates in the same direction as the main door provided at the end of the main door on the main shaft side, and a second lever that rotates in accordance with the rotation direction of the main levers provided on both sides of the main lever. first and second main links, elongated holes formed at the ends of both main links, and first and second main links whose one end engages with the elongated hole and whose other end is supported by the auxiliary shaft.
When one side of both auxiliary doors rotates around the auxiliary shaft, the auxiliary lever on one side moves in the elongated hole and opens the auxiliary door on the other side.
When the main door and the auxiliary door on the other side rotate in the opening direction, the auxiliary door on one side connects the main door and the other side via the main link on one side while the elongated hole end and the auxiliary lever end are locked. A passerby inspection gate characterized in that the auxiliary door on one side is closed by rotating in the rotation direction of the auxiliary door.