JPH03177776A - Double openable door device - Google Patents

Abstract

PURPOSE:To prevent a trouble, in which a door main body is detached from a box body, by a constitution wherein a force to revolve a locking part is prevented from exerting on the locking part when the locking part inhibits the revolution of a latch part. CONSTITUTION:When a force is exerted on a door main body which is opened from left side, into a direction to detach the right side pin 2 of the door main body from a groove 8, a sequencer 11 does not energize, a right side solenoid 30. Accordingly, the stopper surface 26 of a right side locking part 24 precludes still the advancing passage of the lock pin 18 of a right side latch 12. A rod 25' is provided on a tangential line at the abutting point between a stopper surface 26 and a lock pin 18' and an abutting surface is positioned so as to be orthogonal to the tangential line whereby the locking unit 24 will never be pivoted even when the stopper surface 26 receives a force from the lock pin 18 and a latch 12, retaining the right side pin 2, can not be pivoted. Accord ingly, a solenoid 30 for pivoting the locking part 24 will never be troubled by charging an excessive load thereon and a trouble, in which the door main body 1 is detached from a box body 3, may be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a double door device used in a switchboard, a refrigerator, etc., which allows the door to be opened from either the left or the right.

Conventional technology In recent years, in order to accommodate the diversification of installation locations for power distribution boards and refrigerators, and to improve usability, measuring instruments that can open doors from either the left or right have been introduced.
Double door devices such as the one described in the publication have come into use.

The double door device described in Japanese Utility Model Application Publication No. 57-93011 will be described below. This conventional double door device includes a door body provided with a right handle and a left handle, and a frame body provided opposite to the door body and having vertical holes in portions facing the four corners of the door body. , a first electromagnet provided at the upper and lower right corners of the door body; a second electromagnet provided at the upper and lower left corners of the door body; The first electromagnet is provided at the four corners of the door body adjacent to the second electromagnet. a rod that protrudes vertically by a second electromagnet and is engaged with the hole of the frame body; a first switch that is activated when the right handle of the door body is pulled; and a rod that is activated when the right handle of the door body is pulled; a second switch that is activated when the door body is pulled, a third switch that is activated when the door body is opened from the right side, a fourth switch that is activated when the door body is opened from the left side; and a circuit that operates the electromagnets provided at the four corners of the door body according to the states of the second switch, the third switch, and the fourth switch to enable the door body to open left and right. There is.

The operation of the double door device configured as described above will be described below.

1. When opening the door body from the right side, make sure the door body is closed 1.
When the right handle is pulled from the closed state, the first electromagnet, which is connected to the first switch, attracts the right rod and disengages the right rod of the door body and the right hole of the frame. .

On the other hand, the second electromagnet maintains the left rod in a protruding state and interlocks the left rod of the door body and the left hole of the frame in a locked state. This causes the door body to open from the right side around the left rod. When the door body opens from the right side, the third switch is released (the right handle is released).Even if the left handle is pulled to change the states of the first and second switches, the first electromagnet attracts the right rod. and a second electromagnet maintains the left rod in a protruding state. When closing the door body opened from the right side, push the door body in the closing direction. Then the door body closes in the third position.
The state of the switch changes, and the first electromagnet causes the right rod to protrude and interlock the right rod of the door body and the right hole of the frame body in a locked state.

Also, when opening and closing the door body from the left side, the same symmetrical movement as from the right side is performed.

Problems to be Solved by the Invention However, in conventional tank bottoms, electric power is supplied to the electromagnet provided in the door body from a battery provided in the door body or from a power source provided outside the door body via a rod in the door body and a hole in the frame. must be supplied. In the case of a battery, the disadvantage is that the door cannot be opened unless the battery is replaced before the battery runs out, and in the case of an external power supply, the conductive parts of the rod of the door body and the hole in the frame may become worn out or dirty. There was a drawback that there was a possibility that the door body could not be opened due to poor contact.

The present invention solves the above-mentioned problems of the conventional double door device, and aims to provide a double door device that does not require electrical components that require power supply to the door body and is less likely to malfunction.

Means for Solving the Problem In order to achieve this object, the double door device of the present invention has the following features:
a door body having vertically protruding bottles at the four corners; a box body disposed opposite to the door body; a groove through which the bottle can move in and out; and a door holding the bottle in the groove; A latch that rotates as the door body moves in the groove, and a rotatable latch that prevents the latch from moving so that the bottle, which is the axis of rotation of the door body, does not come out of the groove. a hinge mechanism provided on a portion of the box body facing each of the bins, which includes a lock portion, a drive device for rotating the lock portion and the lock portion; a left latch displacement detection means whose state changes when the latch of the left hinge mechanism rotates so that the door body opens from the left side; right latch displacement detection means whose state changes when the launch of the right hinge mechanism rotates; and door body opening/closing detection means which is provided on the box body and whose state changes as the door body opens and closes. a switch, which is provided in the periphery of the box body excluding the door body or on the box body, and is responsive to changes in the states of the left latch displacement detection means, the right latch displacement detection means, and the door body opening/closing detection switch; and a control device that controls the drive device to enable the door body to open left and right, and causes the lock portion to rotate when the lock portion prevents rotation of the latch. It is constructed in such a way that no force that tries to act on it will work.

Function: In the double door device of the present invention, when the left side of the door body is pulled to open the door body from the left side, the door on the left side of the door body rotates the latch of the hinge mechanism on the left side of the box body, and the door body is opened from the left side. The state of the left latch displacement detection means provided in the left latch displacement detection means changes. At this time, the control device installed around the box body, excluding the door body, or on the box body determines that the door body is about to be opened from the left side due to a change in the state of the left latch displacement detection means, and drives the left hinge mechanism. The device is controlled so that the lock part of the left hinge mechanism does not block the rotation of the latch of the left hinge mechanism, and the driving device of the right hinge mechanism is controlled so that the lock part of the right hinge mechanism is prevented from blocking the rotation of the latch of the left hinge mechanism. To prevent the latch of the hinge mechanism from rotating. Under the control of this control device, the pin on the left side of the door body can come out of the groove of the left hinge mechanism, but the pin on the right side of the door body cannot come out of the groove of the right hinge mechanism. Since this is not possible, the door body can be opened from the left side using the pin on the right side as the rotation axis. Additionally, this double door device has a symmetrical structure, so when opening the door body from the left side, you can open the door body from the right side with a symmetrical movement. Therefore, the double-section door device of the present invention allows the door body to be opened from the left and right sides without providing the door body with any electrical components that require power supply. However, this double door device is designed so that when the lock prevents the latch from rotating, no force is applied to the lock to rotate the lock, so the door body cannot be rotated. Even if you pull the door body to remove it from the box, the locking part of the hinge mechanism on the pin side, which is the axis of rotation of the door body, prevents the latch that holds the pin from rotating and maintains its original state. Therefore, it is possible to prevent the door body from coming off from the box body without putting an extra burden on the drive device that rotates the lock portion and causing the drive device to malfunction.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view of a door body of a double door device according to an embodiment of the present invention opened from the right side.

In FIG. 1, reference numeral 1 denotes a door body having pins 2 at its four corners that protrude upward and downward. In Figure 1, the two-dot chain line indicates the door body 1.
is shown opened from the right, and only the pin 2 provided at the upper right corner is shown. 3 is a box disposed facing the door body 1. Reference numerals 4, 5, 6, and 7 are hinge mechanisms disposed in the portions of the box body 3 facing the pins 2, each having a groove 8 through which the pins 2 can move in and out as the door body 1 is opened and closed. . Reference numeral 9 denotes a door body opening/closing detection switch whose state changes when the door body 1 is opened or closed, and is provided on the box body 3 so as to come into contact with a permanent magnet 10 provided on the door body 1. 1
Reference numeral 1 denotes a sequencer which is a control device provided around the box body 3 except for the door body 1. In Figure 1, the sequencer 11
is not attached to the box body 3, but may be attached to the box body 3. Nafu・The double door device of this embodiment has the door body 1
The left and right sides of the door body 1 are exposed when the door is closed.

Next, the hinge mechanism 6 at the upper left of the box 3 of the double door device of this embodiment will be explained with reference to FIGS. 2 to 5.

FIG. 2 is a perspective view of essential parts showing the upper left hinge mechanism 6 of the box body 3 in the embodiment of the present invention. FIG. 3 is a top view of essential parts showing the upper left hinge mechanism 6 of the box body 3 in the embodiment of the present invention. FIG. 4 is a front view of main parts showing the upper left hinge machine m6 of the box body 3 according to the embodiment of the present invention. Fifth
The figure is a front view of main parts of the hinge mechanism 6 of FIG. 4.

2 to 5, 12 is a launch rotatably attached to a rod 15 having both ends fixed to the bottom base 13 and the base 14. Among these, this latch 12 has a recess 16 formed on the groove 8 side to hold the bottle 2, a cam portion 17 formed on the center side of the door body 1, and a fan-shaped cutout with straight portions 12a and 12b on the back side. A crack is formed. Reference numeral 18 denotes a lock bin which is caulked and fixed to the latch 12 adjacent to the cam portion 1.

Reference numeral 19 designates resin sleeves provided on both sides of the latch 12 to reduce sliding resistance when the latch 12 rotates. 20
is the linear part 12a of the fan-shaped notch of the latch 12, 1
It is a stopper pin that restricts the rotation range of the latch 12 by coming into contact with the latch 2b, and is fixed to the bottom base 13 by caulking. A latch displacement detection switch 21 is fixed to the bottom base 13 with bolts and nuts 22, facing the cam portion 17 of the latch 12. In this embodiment, the left latch displacement detection means 23 is composed of the cam portion 17 and the latch displacement detection switch 21.
It consists of The latch displacement detection switch 21 has a rotatable lever that is biased so as to always come into contact with the cam portion 17 of the latch 12. Note that this latch displacement detection switch 21 has a lever that is connected to the latch displacement detection switch 2.
The switch is turned on when the lever moves to the main body side of 1, and the switch is turned off when the lever moves to the opposite side. In this embodiment, the latch displacement detection switch 2
The lever 1 comes into contact with the lower part of the cam part 1 of the latch 12, the latch displacement detection switch 21 is turned off, and the bottle 2 is held in the recess 16 of the latch 12! The lever of the latch displacement detection switch 21 comes into contact with the peak of the cam portion 17 of the latch 12 and the latch displacement detection switch 21 is turned on when the lever of the latch displacement detection switch 21 is in contact with the peak of the cam portion 17 of the latch 12. 12 cam portions 17 are formed and a latch displacement detection switch 21 is arranged.

Reference numeral 24 designates a plate-shaped lock portion rotatably attached to a rod 25 whose both ends are fixed to the bottom base 13 and top base 14 with E-rings. This lock portion 24 is formed with stopper surfaces 26 and 27 that come into contact with the lock pin 18 of the latch 12 to limit rotation of the latch 12. The stopper surface 26 comes into contact with the lock bin 18 when the latch 12 rotates in a direction to move the bin 2 out from the depth of the groove 8, and can prevent the latch displacement detection switch 21 from rotating beyond the switch-on position. When the latch 12 rotates in the direction of inserting the bottle 2 into the groove 8, the stopper surface 2 comes into contact with the lock bottle 18 and rotates beyond the position where the latch displacement detection switch 21 is turned on. It is designed to prevent 28 is lock part 2
This is an oval hole formed at a position away from the stopper surfaces 28 and 27 of No. 4 and the rod 25. 29 is lock part 2
This is a resin sleeve provided on both sides of the lock portion 24 to reduce the sliding resistance when the lock portion 4 is rotated. Reference numeral 30 denotes a drive device composed of a pugh-type solenoid that causes a plunger to protrude when energized.
It is connected to.

This solenoid 3o is fixed at the bottom with a screw 32 at a position where the lock part 24 does not restrict the rotation of the latch 12 when the plunger is protruded, and the lock part 24 restricts the rotation of the latch 12 when the plunger is not protruded. It is fixed to the base 13. In this embodiment, the lock part 24 is the latch 1.
2, when the stopper surface 26 is receiving force from the lock pin 18, the stopper surface 26
is a stopper of the arcuate locus of the lock pin 18 (broken line arrow in FIG. 3) so that the force directed toward the rod 25, which is the center of rotation of the lock part 24, is received from the contact point between the stopper surface 28 and the lock pin 18. The rod 25 is provided on the tangent line (dotted chain line in FIG. 3) at the contact point between the surface 26 and the lock bin 18, so that the surface of the stopper surface 26 that contacts the lock bin 18 is perpendicular to the tangent line. . 33.3
4 is a spacer whose both ends are fixed to the bottom paste 13 and the top paste 14 with fixing screws 36.

36 is a solenoid stopper for regulating the position of the solenoid 30 in the protruding direction, and is formed by bending the bottom pace 13.

The hinge mechanism 6 on the upper left of the box body 3 has been explained above,
The upper right hinge mechanism 4 of the box body 3 is configured symmetrically with the hinge mechanism 6, the hinge mechanism 5 at the bottom right of the box body 3 is configured vertically symmetrically with the hinge mechanism 4, and the hinge mechanism 4 at the bottom left of the box body 3 is configured symmetrically with the hinge mechanism 6. The hinge mechanism 7 is vertically symmetrical to the hinge mechanism 6. Therefore, the components of the hinge mechanisms 4 and 5 on the right side have the same names as those of the hinge mechanism 6 and are indicated by the same symbols with a dash added, and the components of the hinge mechanism 7 on the lower left have the same names as those of the hinge mechanism 6. Indicated by the same symbol. Although not shown, in this embodiment, the right latch displacement detection means 23 is formed by the cam portion 17' of the hinge mechanism 4 and the latch displacement detection switch 21'.
'.

Next, the control system of this embodiment will be explained with reference to FIG.

FIG. 6 is a block diagram of a control system according to an embodiment of the present invention.

In FIG. 6, the sequencer 11, which is a control device, is electrically connected to the left and right launch displacement detection switches 21, 21' and the door body opening/closing detection switch 9. electrically connected to. The sequencer 11 also detects the states of the left and right latch displacement detection switches 21 and 21' and the door body opening/closing detection switch 9.
The configuration is such that energization of the left and right solenoids 30 and 30' can be controlled depending on the state of the solenoid.

Next, the function of the sequencer 11 will be explained together with the operation of the double door device of this embodiment with reference to FIGS. 1 to 7.

FIG. 7 is a flowchart of a control device according to an embodiment of the present invention.

When the door body 1 is closed 1, the left and right bins 2 of the door body 1 are connected to the recesses 16 and 16 of the latches 12 and 12', respectively.
It is located at the back of the housing groove 8.

At this time, the door body opening/closing detection switch 9 and the left and right latch displacement detection switches 21 and 21' are turned off, and the sequencer 11 branches to the No side in step 1 of the flowchart in FIG. The branch to the No side is repeated, and the left and right solenoids 30 and 30' are not energized. At this time, the plungers of the left and right solenoids 30, 30' do not protrude, and the left and right lock portions 24, 24
' is located at a position that limits rotation of the latch 12°12'.

The stopper bottle 20 that has been left behind is in contact with the linear portion 12a of the fan-shaped cutout of the latch 12.

First, the opening and closing of the door body 1 from the left side will be explained. If you grab any part of the left side of the door body 1 and pull it, the left bottle 2 will move into the groove 8 as the door body 1 opens.
along the outer direction of the groove 8. As the bin 2 on the left side moves, the latch 12 on the left side rotates counterclockwise as shown by the arrow on the latch 12 in FIG. 3 about the rod 15 as a fulcrum. When the notch 12 rotates a little, the lever of the left latch displacement detection switch 21 comes into contact with the peak of the cam part 1a of the latch 12, and the left latch displacement detection switch 21 is turned on (step 1). Branch to Yes side). When the left latch displacement detection switch 21 is turned on, the sequencer 11 energizes the left solenoid 30 (step 3). When the left solenoid 30 becomes energized,
The plunger of the left solenoid 3o touches the solenoid stopper 36 and protrudes at 1. This solenoid 30
As a result of the operation, the left lock part 24 rotates counterclockwise around the rod 25 as shown by the arrow on the lock part 24 in FIG. The path of the 12 lock bins 18 is no longer obstructed. Furthermore, when the door body 1 is opened, the door body opening/closing detection switch 9 is turned on. Sequencer 11 is step 3
After that, in the trench where the door body opening/closing detection switch 9 is turned on, branch to the No side in step 4 and Yes in step 5.
However, when the door body opening/closing detection switch 9 is turned on, the process branches to the Yes side in step 40. Furthermore, when the door body 1 is opened, the bin 2 on the left side is no longer held by the latch 12 on the left side, and the door body 1 opens from the left side using the bin 2 on the right side as a fulcrum. At this time, the lever of the left latch displacement detection switch 21 comes into contact with the lower part of the cam portion 17 of the latch 12, and the left latch displacement detection switch 21 is turned off. After the sequencer 11 advances to Stella 7'6, the latch displacement detection switch 21 on the left side
In 1, when the switch is turned off, the branching to the Yes side in step 6 and the branching to Ye+Qlll in step 4 are repeated, but when the left latch displacement detection switch 21 is turned off, the branching to the Yes side in step 6 is repeated.

Branch to the side. When the left latch displacement detection switch 21 is turned off, the sequencer 11 stops energizing the left solenoid 30 (stellar completion). When the left solenoid 3o is de-energized, the granger of the left solenoid 30 is retracted. Due to this operation of the solenoid 30, the left lock part 24 rotates clockwise about the rod 15, and the stopper surface 27 of the left lock part 24 comes to a position where it prevents the lock bin 1B of the left latch 12 from retreating. The clockwise rotation of the left latch 12 is restricted. Also, the latch 12 on the left side is connected to the stopper bin 20.
Rotation of the counterclockwise screw is restricted by the function of the latch 12 and the fan-shaped notch 12b of the latch 12. Therefore, the left latch 1
2 will no longer be able to rotate beyond the range that can hold the bottle 2 again. When the door body 1 is pushed so that the door body 1 opened from the left side is closed, the bottle 2 on the left side moves toward the back of the groove 8 as the door body 1 closes.

As the left bottle 2 moves, the left latch 12 again holds the bottle 2 and rotates clockwise about the rod 16 as a fulcrum. When the latch 12 rotates a little, the lever of the left latch displacement detection switch 21 comes into contact with the peak of the cam portion 17 of the latch 12, and the left latch displacement detection switch 21 is turned on.

The sequencer 11 goes to step 8O in the case where the left latch displacement detection switch 21 is turned on after step 7.
The branching to the No side is repeated, but when the left latch displacement detection switch 21 is turned on, the branching is to the Yes side of the stay 77'8. Left latch displacement detection switch 2
When the switch 1 is turned on, the sequencer 11 energizes the left solenoid 3o (ST/JB 3). When the left solenoid 3o is energized, the left lock part 24 rotates counterclockwise about the rod 25, and the stopper surface 27 of the left lock part 24 follows the path of the lock bin 18 of the left latch 12. 1 barrier disappears. Furthermore, when the door body 1 is closed, the door body opening/closing detection switch 9 is turned off. In step 1, the sequencer 11 turns off the door body opening/closing detection switch 9 after step 3. In step 1, the branching to the Yes side in step 4 and the branching to the yes side in step 6 are repeated, but the door body opening/closing detection switch 9 is turned off. When the switch 9 is turned off, the process branches to the No side of step 4. Furthermore, the door body 1 is closed and the latch 1 holding the left bin 2
2 returns to its original position, the left latch displacement detection switch 21 is turned off. After the sequencer 11 proceeds to step 6, the 7th displacement detection switch 21 on the left side is turned off.In 1, the sequence branches to Yes in step 6 and N in step 4.

However, when the latch displacement detection switch 21 on the left side is turned off, the process branches to the No side in step 5. When the left side displacement detection switch 21 is turned off, the sequencer 11 stops energizing the left solenoid 30 (step 9). When the left solenoid 30 is de-energized, the left lock part 24
rotates clockwise about the rod 26, and the latch 1
The double door device of this embodiment returns to the initial state b.

Next, a description will be given of opening and closing the door body 1 from the right side. If you grab any part of the right side of the door body 1 and pull it, the right bottle 2 will move into the groove 8 as the door body 1 opens.
-t- to the outside of the groove 8 along. As the right bottle 2 moves, the right latch 12' rotates clockwise about the rod 16'. When the latch 12' rotates a little, the lever of the right latch displacement detection switch 21' comes into contact with the peak of the cam part 17' of the latch 12', and the right latch displacement detection switch 21' is turned on (step Branch to the Yes side of 2). When the right latch displacement detection switch 21' is turned on, the sequencer 11 turns on the right solenoid 30' (step 10). When the right solenoid 30' is energized, the flanger of the right solenoid 30' protrudes at 1 against the solenoid stop/knee 36'. This solenoid 30'
As a result of this action, the right locking portion 24' rotates clockwise using the rod 25' as a fulcrum, and the right locking portion 24'
The stopper surface 26' no longer blocks the path of the lock bin 18' of the right latch 12'. Furthermore, when the door body 1 is opened, the door body opening/closing detection switch 9 is turned on. In step 1, when the door body opening/closing detection switch 9 is turned on after step 10, the sequencer 11 repeats branching to the No side in step 11 and branching to the Yes side in step ``12.'' When the switch 9 is turned on, the process branches to the yes side of step 11. Furthermore, when the door body 1 is opened, the right bin 2 is no longer held by the right latch 12', and the door body 1 is moved to the left bin 2. The latch displacement detection switch 21' on the right side comes into contact with the lower part of the cam portion 17' of the latch 12', and the right launch displacement detection switch 21' is turned off.Sequencer 11 is a case in which the right latch displacement detection switch 21' is turned off after proceeding to step 13, Yes in step 13.
Repeat branching to the side and branching to the Yes side in step 11.
However, when the right latch displacement detection switch 21' is turned off, the process branches to the No side of step 13. When the right latch displacement detection switch 21' is turned off, the sequencer 11 stops energizing the right solenoid 30' (step 14). right solenoid 3
When 0' is de-energized, the right solenoid 30'
The flancher retracts. Due to the operation of this solenoid 30', the right lock part 24' rotates counterclockwise about the rod 25', and the stopper surface 27' of the right lock part 24' The counterclockwise rotation of the right latch 12' is restricted.
′ works to restrict clockwise rotation. Therefore, the right latch 12' cannot be rotated beyond the range in which it can hold the bottle 2 again. When the door body 1 is pushed so that the door body 1 opened from the right side closes, the bottle 2 on the right side moves toward the back of the groove 8 as the door body 1 closes. As the right bottle 2 moves, the right latch 12' again holds the bottle 2 and rotates counterclockwise about the rod 16'.

When the latch 12' rotates a little, the lever of the right latch displacement detection switch 21' moves to the cam part 17' of the latch 12'.
The latch displacement detection switch 2 on the right side
1' switch is turned on. The sequencer 11 is step “1”
In step 1, when the right latch displacement detection switch 21' is turned on after step 4, the branching to the No side in step 15 is repeated, but when the right latch displacement detection switch 21' is turned on, step 15 is executed. Branch to Yes side.

When the right latch displacement detection switch 21' is turned on, the sequencer 11 energizes the right solenoid 30' (step 1o). When the right solenoid 30' is energized, the right lock part 24' rotates clockwise about the rod 26', and the stopper surface 27' of the right lock part 24' locks the right latch 12'. pin 1
Block the path of 8'! It disappears. Furthermore, when the door body 1 is closed, the door body opening/closing detection switch 9 is turned off.

The sequencer 11 selects Y in step 11 for cases where the door body opening/closing detection switch 9 is turned off after step 1o.
Branching to the Bg side and branching to the Yes side in step 13 were repeated, but when the door body opening/closing detection switch 9 is turned off, the branching to the No side in step 11 is performed. Furthermore, the door body 1 is closed and the latch 1 holding the bin 2 on the right side
When 2' returns to its original position, the right side and te displacement detection,
Z Char 21' switch is turned off. After the sequencer 11 advances to step 1112, the right latch displacement detection switch 21' is turned off! Well then, Stesophy 120
Although the branching to the Yes side and the branching to the No side in step 11 were repeated, the right latch displacement detection switch 21'
When the switch is turned off, the process branches to the No side of step 12. When the right latch displacement detection switch 21' is turned off, the sequencer 11 stops energizing the right solenoid 30' (step 1e). When the right solenoid 30' is de-energized, the right lock is turned off. Part 24
' is rotated counterclockwise about the rod 25' and returns to the position where rotation of the latch 12' is restricted, and the double door device of this embodiment returns to its initial state.

Next, a case will be described in which a force is applied to the door body 1 opened from the left side in a direction to move the bottle 2 on the right side of the door body 1 out of the groove 8. When a force is applied to the door body 1 opened from the left side in a direction that moves the bottle 2 on the right side of the door body 1 out of the groove 8, the bottle 2 on the right side moves along the groove 8 toward the outside of the groove 8. . As the bin 2 on the right side moves, the latch 12 on the right side
' rotates clockwise around the rod 16'. When the latch 12' rotates a little, the lever of the right latch displacement detection switch 21' comes into contact with the peak of the cam part 17' of the latch 12', and the right latch displacement detection switch 21' is turned on. . However, when the door body 1 is opened from the left side, the sequencer 11 is in either step 3 or step 9, so even if the right latch displacement detection switch 21' is turned on, the sequencer 11 is in the right side. Solenoid 30 is not energized. Therefore, the stopper surface 26' of the right lock portion 24' still blocks the passage of the lock pin 18' of the right latch 12'.

When the latch 12' rotates further, the lock pin 18' of the latch 12' comes into contact with the stopper surface 26' of the lock portion 24. In this embodiment, a rod 25' is provided on the tangent of the arcuate locus of the lock bin 18' at the contact point between the stopper surface 26' and the lock bin 18', and the surface of the stopper surface 26' that contacts the lock bin 18' is Since it is perpendicular to the tangent line, even if the stopper surface 26' receives force from the lock bin 18', the lock part 24' will not rotate, and the launch 12' holding the bin 2 on the right side will not rotate any further. cannot rotate. Therefore, the bottle 2 on the right side of the door body cannot come out of the groove 8, and the door body 1 cannot be removed from the box body 3. Also, when a force is applied to the door body 1 opened from the right side in a direction to push the bottle 2 on the left side of the door body 1 out of the groove 8, the double door device of this embodiment has the same left-right symmetrical structure. Because of the movement, the door body 1 does not come off the box body 3.

As described above, the double door device of this embodiment includes a door body 1 having bins 2 projecting upward and downward at the four corners, a box body 3 disposed opposite to the door body 1, and a bin 2 that can be moved in and out. a latch 12' that holds the bottle 2 in the groove 8 and rotates as the bottle 2 moves within the groove 8; and a latch 12' that holds the bottle 2 in the groove s; A rotatable lock part 2 that prevents the latte 12°12' from rotating so that it does not come out of the
4.24' and lunoids 30 and 30' which are drive devices for rotating the locking parts 24 and 24'.
, 5 + 6 + 7, and a left latch displacement detection means 23 provided in the box body 3 and whose state changes when the latch 12 of the left hinge mechanism 6.7 rotates so that the door body 1 opens from the left side; A right latch displacement detection means 23' provided on the box body 3 and whose state changes when the latch 12' of the right hinge mechanism 4, 6 rotates so that the door body 1 opens from the right side; A door body opening/closing detection switch 9 whose state changes when the door body 1 is opened/closed, a left latch displacement detection means 23, a right latch displacement detection means 23', and a door body opening/closing detection switch 9 provided around the box body 3 excluding the door body 1. switch 9
The sequencer 11 controls the energization of the solenoids 30 and 30' in response to changes in the state of the door body 1, thereby enabling the door body 1 to open both left and right. The door main body 1 can be opened from the left and right even if it is not provided. Further, this double door device is configured so that when the lock portion 24 prevents the rotation of the latch 12, no force is applied to the lock portion 24 to rotate the lock portion 24, so that the lock portion 24 is prevented from rotating. Even if you pull the door body 1 to remove it from the box body 3, the hinge mechanism 4, 5 (-i
The lock portion 24 (24') of the hinge mechanism 6゜7) can maintain the state of the residue 1 in which the latch 12 (12') holding the pin 2 is prevented from rotating.
It is possible to prevent the door body 1 from coming off from the box body 3 without placing an extra burden on the solenoid 30 (30') that rotates the solenoid 30 (30').

In this embodiment, the latch 12 no longer holds the pin 2,
The door body 1 is prevented from rotating 12' by the contact between the lock pin 18 and the stopper surface 2 of the lock part 24, and the contact between the notched linear part 12b and the stopper pin 2o. However, the latches 12, 12 no longer hold pin 2.
Lock pin 18 and lock part 24
If there is no need to prevent this by contact with the stopper surface 2 of the latch 12, the shape of the cam portion 17 of the latch 12 is such that the latch displacement detection switch 21 is not turned off when the pin 2 comes out from the recess 16 of the latch 12. Alternatively, the door body opening/closing detection switch 9 may be omitted, and the sequencer 11 may control the energization of the solenoid 30.30' in accordance with changes in the states of the left and right latch displacement detection switches 21.21'.

In this embodiment, latch displacement detection switches 21°21' are provided on all of the hinge mechanisms 4, 5, 6.7, but one on the left and right.
You can do it one by one.

In this embodiment, the rod 25 is provided on the tangent of the arcuate locus of the lock pin 18 at the contact point between the stopper surface 26 and the lock pin 18, and the surface of the stopper surface 26 that contacts the lock pin 18 is on the tangent. However, when the lock portion 24 is at the position where the rotation of the latch 12 is restricted and the stopper surface 26 is received by the lock pin 18, the stopper surface 26 becomes perpendicular to the stopper surface 26. Other configurations may be used in which the force directed toward the rod 25, which is the center of rotation of the locking portion 24, is received from the point of contact with the locking pin 18.

Effects of the Invention As described above, the present invention provides a door body having pins protruding vertically at four corners, a box body disposed opposite to the door body, a groove through which the pin can move in and out, and the groove. a latch that holds the pin inside and rotates as the pin moves within the groove; and a latch that holds the pin inside and rotates as the pin moves within the groove; a hinge mechanism provided on a portion of the box body facing each of the pins, the hinge mechanism having a rotatable lock portion that prevents rotation and a drive device that rotates the lock portion; a left latch displacement detection means whose state changes when the latch of the left hinge mechanism rotates so that the door body opens from the left side; a right latch displacement detection means whose state changes when the launch of the right hinge mechanism rotates so as to open from the right side; and a right latch displacement detection means that is provided on the box body and whose state changes when the door body is opened and closed. a door body opening/closing detection switch, which is provided in the periphery of the box body excluding the door body or on the box body, the left latch displacement detection means, the right latch displacement detection means, and the door body opening/closing detection switch; Since the double door device is configured with a control device that controls the drive device according to a change in the state and enables the door body to open both left and right,
It is possible to provide a double door device that does not require electrical components that require power supply to be provided in the door body. Further, in the present invention, the double door device is configured such that when the lock portion is blocking the rotation of the launch, no force is applied to the lock portion to rotate the lock portion. To provide a double door device capable of preventing a failure in which a box body of a door body comes off from a box body without placing an extra load on a drive device for rotating the parts and causing the drive device to malfunction.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing the door body of a double door device according to an embodiment of the present invention opened from the right side, and Fig. 2 is a perspective view showing a hinge mechanism on the upper left of the box body in an embodiment of the present invention. 3 is a top view of the main parts showing the hinge mechanism in Fig. 2, Fig. 4 is a front view of the main parts showing the hinge mechanism in Fig. 2, and Fig. 5 is a main part of the hinge mechanism in Fig. 4. FIG. 6 is a block diagram of a control system according to an embodiment of the present invention, and FIG. 7 is a flowchart of a control device according to an embodiment of the present invention. 1...Door body, 2...Bin, 3...
...Box, 4゜5.6.7...Hinge mechanism, 8...Groove, 9...Door body open/close detection switch, 11... Control device (sequencer), 12
, 12'...Latch, 23...Left latch displacement detection means, 23'...Right latch displacement detection means, 24.24'...Lock portion , 30.3
0'... Drive device (solenoid).

Claims (1)

[Scope of Claims] A door body having vertically protruding pins at four corners, a box disposed opposite to the door body, a groove through which the pin can go in and out, and a groove in which the pin is located in the groove. A latch that is held and rotates as the pin moves within the groove, and a rotation of the latch is prevented so that the pin, which is a rotation axis for rotation of the door body, does not come out of the groove. a hinge mechanism provided on a portion of the box body facing each of the pins, the hinge mechanism having a rotatable lock portion that rotates the lock portion and a drive device that rotates the lock portion; a left latch displacement detection means whose state changes when the latch of the left hinge mechanism rotates so that the door body opens from the left side; a right latch displacement detection means whose state changes when the latch of the right hinge mechanism rotates; and a door body opening/closing detection switch which is provided on the box body and whose state changes when the door body is opened or closed. and, provided in the periphery of the box excluding the door body or on the box, in response to changes in the states of the left latch displacement detection means, the right latch displacement detection means, and the door body opening/closing detection switch. and a control device that controls the drive device to allow the door body to open both left and right, and causes the lock portion to rotate when the lock portion prevents rotation of the latch. A double door device that is constructed so that no force is applied.