JPH10227163A - Interlock device of door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a main door and a secondary door from being enlarged and to provide an interlock device capable of economizing a space with simple construction. SOLUTION: An interlocking device is so constituted that a main door 1 and a secondary door 13 are opened in sequence and that the secondary door 13 and main door 12 are closed in sequence. In that case, the interlocking device is equipped with the main door 12 and secondary door 13 adjacent to each other, main slide member 14 and secondary door member 15 respectively connected with the main door 12 secondary door 13 and rods 16 and 17 so as to make it possible to move along the upper edge section of an opening opened and closed with them and a lock member 19 constraining the movement by interlocking with one of the main slide member 14 and secondary slide member 15 and, at the same time, making free of the movement by releasing the interlock with the other of them. By interlocking the lock member 19 with the main slide member 14 in the case the main door is opened, the interlock of the lock member 19 with the main slide member 14 in the case the main door is opened is released.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an interlock device for opening and closing doors in a predetermined order, for example, in a control panel having a plurality of doors.

[0002]

2. Description of the Related Art In a door system for a large-scale control panel that handles a high-voltage power supply, it is required to interlock with a door or a power breaker inside the control panel to prevent electric shock. The interlock mechanism interlocks the operation of the power breaker, which can be operated from the outside, with the key operation of the door (main door) in front of the power breaker. The door (slave door) cannot be opened and is an important system for safety.

[0003] As a conventional device, there is known an interlock between an opening / closing handle of a main door and an opening / closing handle of a slave door.

[0004]

In the above-mentioned conventional apparatus, it is necessary to provide a part of the interlock mechanism on the main door and the slave door itself. As a result, the interlock mechanism was complicated and large, and the main and slave doors themselves were also large, reducing the volume inside the control panel.This required space for mounting various electrical components required for control. In order to secure the control, the control panel was enlarged.

SUMMARY OF THE INVENTION An object of the present invention is to provide a door interlock device which has a simple structure and can save space.

[0006]

A door interlock device according to the present invention opens a main door and a slave door in this order,
An interlock device for closing a slave door and a main door in order, which can be moved along an upper edge portion of an adjacent main door and a slave door and an opening opened and closed by the main door and the slave door. And a main slide member and a sub slide member, which are connected to the main door and the sub door by rods, respectively, engage with one of the main slide member and the sub slide member to restrict the movement thereof, and release the engagement with the other. And a lock member for freely moving the lock member.When the main slide member and the lock member are engaged when the main door is opened, the engagement between the slave slide member and the lock member when the slave door is closed is released. The engagement between the main slide member and the lock member when the main door is opened is released by the engagement between the sub slide member and the lock member when the sub door is closed. .

In the door interlock device according to the present invention, the main slide member and the sub-slide member are moved in the corresponding directions as the main door and sub-door are opened and closed, and the main slide member and the sub-slide member are locked by the lock members. Is engaged and disengaged,
The movement of the main door and the slave door is restrained and released. Therefore, since it is only necessary to connect the rods to the main door and the slave door, it is possible to prevent the main door and the slave door from increasing in size, to achieve a simple structure and to save space.

In another door interlock device according to the present invention, when the main door and the slave door are double doors, in the above invention, the main slide member and the lock member are engaged when the main door is opened. Instead of disengaging the slave member and the lock member when the slave door is closed, a pusher is provided at the tip of the main door, and a receiving portion for receiving the pusher is provided at the tip of the slave door. It may be provided.

[0009]

Embodiments of the present invention will be described below.

The doors are classified into right-handed doors and left-handed doors according to the difference in opening. Considering the combination of the adjacent main door and slave door, the following three cases can be considered.

<Case 1>: Left-hand main door and left-hand slave door See FIGS. 1 to 3. The control panel 11 has a box shape with an open front. At the opening of the control panel 11, a left-hand right door 12 (main door) and a left-hand left door 13 (slave door) are arranged, respectively. Control panel 11
Right slide member 14 and left slide member 15 near the ceiling of
Are arranged respectively. The right slide member 14 and the left slide member 15 are movable in the left-right direction on the same straight line. The right door 12 and the right slide member 14 are connected by a right rod 16, and the left door 13 and the left slide member 15 are connected by a left rod 17, respectively. Between the right slide member movement path and the left slide member movement path, there is provided a horizontal support pin 18 extending in the front-rear direction perpendicular to these. A lock member 19 is attached to the support pin 18.

The right slide member 14 has a U-shape in cross section, and has an opening facing backward. At the left end of the top wall of the right slide member 14, a substantially triangular plate-shaped lock member presser 21 is provided in a hanging manner in a side view. The lock member presser 21 has a left-upward inclined press surface 22 and a horizontal press surface 23 continuing to the right end thereof. In the center of the bottom wall width direction of the right slide member 14,
A long hole-shaped right engagement recess extending in the left-right direction relative to the holding surface 22
24 are provided. The left slide member 15 has the same shape as the right slide member 14. In the middle of the length of the bottom wall of the left slide member 15, a notched left engagement recess 25 is provided.

The lock member 19 has a rectangular plate shape that is long in the left and right directions, and has a width slightly larger than the right slide member or the left slide member. A guide cylinder 26 fitted over the support pin 18 is fixed at a position closer to the right than the middle of the length of the upper surface of the lock member 19. A downwardly projecting pin-shaped right engagement projection 27 is provided at the center of the right end of the lock member 19 in the width direction. At the rear edge of the left end of the lock member 19, an L-shaped left engagement projection 28 having a downwardly projecting vertical cross section is provided.

When the right door 12 and the left door 13 are closed, the right slide member 14 and the left slide member 15 are located at the rightmost position. When opening the right door 12 and the left door 13, both the right sliding member 14 and the left sliding member 15 move to the left, and when closing the right door 12 and the left door 13, both the right sliding member 14 and the left sliding member 15 face the right. Go to

With the lock member 19 attached to the support pin 18, the lock member 19 is urged to rotate counterclockwise by its own weight.

FIG. 2A shows a state in which the right door 12 and the left door 13 are closed, and the right slide member 14 and the left slide member 15 are located at the rightmost position. In this state, the right slide member 14 is far away from the lock member 19, the right slide member 14 is free to move, and the right door 12 can be opened. On the other hand, the left engagement projection 28 of the lock member 19 is fitted in the left engagement recess 25 of the left slide member 15, the movement of the left slide member 15 is restricted, and the left door 13 can be opened. I can't.

The right door 12 is opened and the right slide member 14 is moved to the left. As shown in FIG.
Moves to the position immediately before the left end, the pressing surface 22 of the pressing member 21 contacts the right end of the lock member 19 and presses it down. As a result, the lock member 19 is rotated in the clockwise direction, and the left engagement protrusion 28 comes out of the left engagement recess 25. Then, the movement of the left slide member 15 becomes free, and the left door 13 can be opened. On the other hand, the right engaging projection 27 is incompletely fitted in the right engaging recess 24. When the left door 13 is opened in this state, the left engagement recess 25 moves to the left from immediately below the left engagement protrusion 28, and the left engagement protrusion 28 is received by the bottom wall of the lock member 19, The lock member 19 cannot rotate counterclockwise. Therefore, the right engagement projection 27 cannot escape from the right engagement recess 24, the right slide member 14 cannot be moved rightward, and the right door 12 cannot be opened.

As shown in FIG. 2C, the right slide member 14
Is moved to the left limit, the right end of the lock member 19 is further pushed down, and the right engagement protrusion 27 is fitted into the right engagement recess 24. The upper surface of the right end of the lock member 19 is pressed by the horizontal pressing surface 23, and the left end of the lock member 19 slightly rises from the bottom wall of the left slide member 15. The lock member 19 cannot rotate counterclockwise. Then, the movement of the left slide member 15 is free, the left door 13 can be closed, but the right slide member 14 cannot be moved,
The right door 12 cannot be closed.

When the left door 13 is closed and the left slide member 15 is positioned at the rightmost position from the state shown in FIG. 2C as shown in FIG. Is located at the left engagement projection 28. In this state, when the right slide member 14 is moved rightward, the right end of the lock member 19 gradually rises while sliding on the inclined pressing surface 22, while the left engagement protrusion 25 is in the left engagement recess 25. 28 is inserted, and the lock member 19 is rotated counterclockwise. Eventually, when the right engaging projection 27 comes out of the right engaging recess 24 and the left engaging projection 28 is fitted into the left engaging recess 25, the state shown in FIG. Right door
The door 12 can be freely opened and closed, but the left door 13 cannot be opened.

<Case 2>: Left-hand main door and right-hand slave door See FIGS. 4 and 5. In the following description, the same reference numerals are given to portions corresponding to Case 1 and the description is omitted. .

The right door 12 (main door), the right slide member 14, and the right rod 16 are the same as those in the case 1 and are left-handed.

The left door 31 (slave door) is right-handed and connected to the left slide member 32 by a left rod 33. At the right end of the bottom wall of the left slide member 32, a left-downward engaging projection 34 is provided.

The lock member 35 is a lock member 19 of the case 1.
Similarly to the above, it is attached to the support pin 36 and has a guide cylinder 37 and a downwardly projecting pin-shaped right engagement projection 38. At the left end of the lock member, a bent edge-shaped left-upward engaging projection 39 is provided.

When the left door 31 is closed, the left sliding member
32 is located at the left end. Contrary to the right door 12, when opening the left door 31, the left slide member 32 moves rightward, and when closing the left door 31, the left slide member 32 moves leftward.

As in the case 1, the lock member 35 is urged to rotate counterclockwise. A stopper 41 is provided on the side opposite to the support pin 36 with the locking member 35 interposed therebetween.
Is provided, whereby rotation of the lock member 35 in the counterclockwise direction is restricted, and the lock member 35 is maintained in a substantially horizontal posture.

FIG. 5A shows that the right door 12 and the left door 31 are closed, the right slide member 14 is at the right end, and the left slide member is closed.
32 shows a state where 32 is located at the left end. In this state,
The right slide member 14 is far away from the lock member 35 and the right slide member 14 is free to move, so that the right door 12 can be opened. On the other hand, the downward-facing left engaging projection 34 of the left slide member 32 and the upper-left engaging projection 39 of the lock member 35 should be opposed to each other at a slight interval. In order to open the left door 31, it is necessary to move the left slide member 32 rightward, but the lower left engagement protrusion 34 and the upper left engagement protrusion 39 are engaged with each other and the left slide member 32 is moved rightward. It cannot be moved and the left door 13 cannot be opened.

As shown in FIG. 5B, when the right door 12 is opened and the right slide member 14 moves to the position immediately before the left limit, the lock member 35 rotates clockwise similarly to the case 1. The left end of the lock member 35 is lifted, and the upper left engagement protrusion 39 is located above the lower left engagement protrusion 34.
Is located. Then, the rightward movement of the left slide member 32 is free, and the left door 31 can be opened.

As shown in FIG. 5C, the manner in which the movement of the right slide member 14 by the lock member 35 is restricted is the same as in the case 1. When the left end of the lock member 35 is received by the left slide member 32, the lock member 35 cannot rotate counterclockwise. However, as shown in FIG. When the left slide member 32 is moved to a position where the 32 is separated, the rotation of the lock member 35 in the counterclockwise direction becomes free, and the restriction of the right slide member 14 by the lock member 35 is released.

<Case 3>: Right-handed main door and left-handed slave door (double door) See FIGS. 6 to 8 The right door 51 (main door) is right-handed, and the left door 52 (slave door) is left-handed. Are arranged as follows. The right door 51 and the left door 52 are connected to a right slide member 53 and a left slide member 54 by a right rod 55 and a left rod 56, respectively. A horizontal support pin 57 is provided slightly to the right of the left limit of the movement path of the right slide member 53 so as to protrude above the movement path. A lock member 58 is attached to the support pin 57.

A push portion 61 is provided at the tip of the right door 51. A receiving portion 62 is provided at the tip of the left door 52.
With the left door 52 closed first, the right door 51 is closed such that the pushing part 61 overlaps the receiving part 62. Therefore, unless the right door 51 is opened first, the left door 52 is not opened.

An L-shaped unlocking member 63 is provided at the right end of the front side surface of the left slide member 54 so as to project rightward in a plan view.

The lock member 58 is of a flat plate shape, is swingably suspended from the support pin 57, and has a stopper 64. In a state where the lock member 58 hangs vertically from the support pin 57, the clockwise rotation of the lock member 58 is restricted by the stopper 64.

When the right door 51 is closed, the right sliding member
53 is located at the left end, and with the left door 52 closed, the left slide member 54 is located at the right end, and the right slide member 53
The left end of the left slide member 54 and the right end of the left slide member 54 are opposed to each other at a slight interval. When opening the right door 51, the right slide member 53 moves rightward, and when closing the right door 51, the right slide member 53 moves leftward. Conversely, when opening the left door 52, the left slide member 54 moves leftward, and when closing the left door 52, the left slide member 54 moves rightward.

FIG. 7A shows a state where the right door 51 and the left door 52 are closed. The lock release member 63 overlaps the left end of the right slide member 53. The lock member 58 is pushed up by the lock release member 63 so as to be inclined downward to the right, and the lower end of the lock member 58 is received by the lock release member 63.

As shown in FIG. 7B, the right door 51 is opened,
Next, when the left door 52 is opened, the lock member 58 slides down from above the lock release member 63 and assumes a vertical posture.

7 (b), the right door 51 cannot be closed because the lock member 58 prevents the right slide member 53 from moving leftward. Then, as shown in FIG. 7C, when the left door 52 is closed first, the left slide member 54 is moved rightward, and the lock member 58 is lifted by the lock release member 63, Since the right slide member 63 can enter, the right door 61 can be closed.

In the above, in order to prevent electric shock, the main door is linked to a power breaker (not shown). That is, unless the power breaker is turned off, the main door will not open, and if the main door is not closed, the power breaker will be turned off.
It does not become N.

[0038]

According to the present invention, the main slide member and the slave slide member are moved in the directions corresponding to the opening and closing of the main door and the slave door, respectively, and the lock member is engaged with the master slide member and the slave slide member. By disengaging and disengaging, the movement of the main door and the slave door is restrained and released, so only the rods need to be connected to the main door and the slave door. Can be avoided, the structure is simple, and space can be saved.

[Brief description of the drawings]

FIG. 1 shows a case 1 of an interlock device according to the present invention.
FIG.

FIG. 2 is a diagram illustrating the operation of the device.

FIG. 3 is a perspective view showing a main part of the apparatus.

FIG. 4 shows a case 2 of the interlock device according to the present invention.
FIG.

FIG. 5 is an explanatory diagram of the operation of the device.

FIG. 6 shows a case 3 of the interlock device according to the present invention.
FIG.

FIG. 7 is a diagram illustrating the operation of the apparatus.

FIG. 8 is a perspective view showing a main part of the apparatus.

[Explanation of symbols]

 12,51 Main door 13,31,52 Slave door 19,35,58 Lock member

Claims (2)

[Claims] An interlock device for opening a main door and a slave door in this order and closing the slave door and the main door in this order, comprising: a main door and a slave door arranged adjacent to each other; A main slide member and a sub slide member connected by a rod to the main door and the sub door so as to be movable along the upper edge of the opening to be opened and closed,
A lock member that engages with one of the main slide member and the sub-slide member to restrict the movement thereof, and releases the other engagement member to freely move the main slide member. When the slave door is closed, the engagement between the slave slide member and the lock member is released, and when the slave door is closed, the engagement between the slave slide member and the lock member causes the main slide member when the master door is opened. An interlock device for a door, wherein engagement between the lock member and the lock member is released. 2. An interlock device for opening a main door and a slave door in this order, and closing the slave door and the main door in this order, comprising: a main door and a slave door arranged adjacent to each other; A main slide member and a sub slide member connected by a rod to the main door and the sub door so as to be movable along the upper edge of the opening to be opened and closed,
A lock member that engages with one of the main slide member and the sub-slide member to restrict the movement thereof, and releases the engagement with the other to freely move the main slide member and the sub-slide member. A push portion is provided at the tip of the main door, and a receiving portion for receiving the push portion is provided at the tip of the slave door, and the slave member and the lock member engage when the slave door is closed. A door interlock device configured to release the engagement between the main slide member and the lock member when the main door is opened.