JP4462625B2 - Double door - Google Patents

Description

  The present invention relates to a double door used for an entrance door or the like.

As a double door, a main door and a child door are provided on the frame so that both the door can be opened, a fixed lock called a French drop is attached to the child door, and the child door can be fixed to the frame by locking this fixed lock. A double door is known in which a door lock, a door guard, and a guard lock called a guard lock are attached to the door and the child door, and the opening of the main door can be restricted to a small range by locking the door lock.
With this double door, it is possible to ventilate the room by opening the main door in a small range that cannot be accessed by a person restricted by a precaution.

However, when the main door is opened in a small range regulated by a precaution lock, the fixed lock attached to the child door can be seen from the outside and can be unlocked from the outside.
That is, since the child door can be opened in a small range by unlocking the fixed lock, the guard lock can be unlocked from the outside.

In order to prevent the foregoing, the double door disclosed in Patent Document 1 is provided with a lock mechanism that locks the operation lever of the fixed lock at the lock position, and this lock mechanism is configured to be unlocked using a tool. .
In this way, the lock cannot be unlocked with bare hands from outside, so that the fixed lock cannot be unlocked with bare hands from outside.

Japanese Patent No. 3015292

Since the operation part of the lock mechanism disclosed in Patent Document 1 described above can be viewed by an outdoor person in a state where the main door (the other door body) is opened in a small range that is restricted by a lock, the outdoor part can be seen. It is possible to unlock the lock mechanism from a gap between the main door and the child door (one door body) with a tool.
Therefore, the conventional double door cannot reliably prevent crime prevention by the outside person from unlocking the fixed lock.

  The object of the present invention is to securely prevent crime by preventing an outdoor person from unlocking a fixed lock attached to the other door in a state where one door is opened in a small range regulated by a precaution lock. It is to provide a double door that can be used.

The present invention attaches two doors to the frame so that they can be double-opened,
Attach a padlock that regulates the opening of one door to a small range where people cannot go in and out over this one door and the other door,
On the other door, the locked state in which the door is fixed to the frame and the unlocked state in which the door is unlocked are operated from the indoor side, and the fixed lock in the locked state is in the unlocked state. a locked state to prevent the locking device from the indoor side Ru is operated to the unlocked state for allowing the an unlocked state mounting,
The fixed lock includes a locking position for fixing the door to the frame, a movable body that moves to the unlocking position for releasing the fixing, and an operation member that moves the movable body to the locking position and the unlocking position.
The lock device is movable between a lock position and a lock release position, and is a lock member held in the lock position by an elastic material, and an operation member that moves the lock member to the lock release position against the elastic material With
When the lock member is in the locked position, the movable body at the locked position is locked so as not to move to the unlocked position,
When the lock member is in the unlocked position, the double door is characterized in that the movable body at the locked position can be moved to the unlocked position so that the lock can be released.

In the present invention, when the movable body of the fixed lock is in the unlocked position, the lock member is pressed against the movable body by the elastic material, and when the movable body moves to the locked position, the lock member moves to the locked position by the elastic material. You can

If it does in this way, the lock member of a lock device will move to a lock position with an elastic material by moving the movable body of a fixed lock to a lock position, and locking a lock.
Therefore, since it can lock without operating a locking device, operation is easy and operation of a locking device is not forgotten.

  In the present invention, the operation member of the fixed lock and the lock operation member of the locking device are brought close to each other in the vertical direction, and one hand that tries to operate one of the operation members and the other hand that tries to operate the other operation member. Can interfere in the vertical direction.

  In this way, when an outdoor person tries to operate each operation member with both hands from the gap between one door and the other door, the one hand and the other hand interfere. Therefore, it is very difficult to operate each operation member at the same time, and the fixed lock cannot be unlocked.

According to the present invention, in order to set the locked lock in the unlocked state, the operating member of the locking device is operated with one hand to move the locking member to the unlocked position, and the operating member is The movable body must be moved to the unlocking position while holding the operation member of the fixed lock with the other hand while holding it with one hand.

Therefore, in order for an outdoor person to unlock the fixed lock with one door opened in a small range restricted by a precaution lock, the door must be positioned between the door front end surface of one door and the door front end surface of the other door. Since both hands must be inserted through the gap between the locking device and the locking device, and the locking device must be operated at the same time, the locking device can be reliably prevented from being unlocked and crime prevention can be ensured. .

As shown in FIG. 1, two doors 2 and 3 are attached to a frame 1 so as to be able to be double-opened to form a double-open door.
A guard lock 4 is attached over the one door 2 and the other door 3, and by locking the guard lock 4, a person can open one door 2 as indicated by a virtual line in FIG. 2. Restrict to a small area that cannot be entered and exited.
The guard 4 includes a protrusion 4a attached to the indoor side surface 3a of the other door 3, and a guard arm 4b swingably attached to the indoor side surface 2a of the one door 2, and the guard arm 4b is normally shown in FIG. As shown in FIG. 2, the posture is along the indoor side surface 2a of one door 2, and when locked, the guard arm 4b is oriented indoors at right angles to the indoor side surface 2a of one door 2 as shown in FIG. The insertion hole 4c is inserted through the protrusion 4a. When one of the doors 2 is opened in this state, the guide hole 4d of the guard arm 4b is inserted through the protrusion 4a and cannot be removed. As shown by the phantom line in FIG. The door lock 4 is not limited to this, but may be called a door chain or a door lock.
In other words, the lock 4 is locked and unlocked from the inside of the room, and the opening of the one door 2 is restricted to a small range where people cannot enter and exit by locking, and the opening of the one door 2 is restricted by unlocking. Anything can be used.

A fixed lock 10 is attached to the free end of the other door 3, that is, the door tip. The operation member of the fixed lock 10 can be operated from the door front end surface 3b of the other door 3, as will be described later.
When the fixed lock 10 is locked, the other door 3 is fixed to the frame 1 so as not to be opened, and when unlocked, the other door 3 is released from being fixed to the frame 1 and can be opened.
A lock device 20 is attached to the other door 3. The locking device 20 is operated in a locked state that prevents the locked lock 10 in the locked state from being unlocked and an unlocked state that permits the unlocked state.
The operation member of the locking device 20 is positioned on the indoor side surface 3a of the other door 3 and is operated from the indoor side.
In FIG. 1, the fixed lock 10 and the locking device 20 are attached to the lower part of the other door 3, but may be attached to the upper part, or may be attached to the lower part and the upper part, respectively.

Therefore, as shown by the phantom line in FIG. 2, in order to unlock the fixed lock 10 by an outdoor person with the door 2 opened in a small range restricted by the precaution lock 4, One person puts one hand through the gap A between the door front end surface 2b of one door 2 and the door front end surface 3b of the other door 3 and operates the operation member of the lock device 20 to release the lock, Then, the operation member of the fixed lock 10 is operated and unlocked.
However, an outside person cannot see the operation member of the locking device 20 from the gap A, and both the hands are inserted from the gap and the locking device 10 is unlocked while operating the locking device 20 in the unlocked state. It is very difficult to perform the lock operation, and the operation member may not reach the hand depending on the mounting position of the lock device 20 or the like.
Therefore, it is possible to reliably prevent an outdoor person from unlocking the fixed lock 10 and to secure crime prevention.

Next, the fixed lock 10 and the lock device 20 will be described in detail.
As shown in FIGS. 3 to 5, the fixed lock 10 is provided with a main body 11 and a movable body provided on the main body 11 so as to be movable in the vertical direction across one upper and lower locking position and the other upper and lower unlocking position. A body 12 and an operation member 13 for moving the movable body 12 up and down are provided, and the main body 11 is attached to the other door 3. When the movable body 12 moves to one of the upper and lower locking positions, it engages with the lock 14 of the frame 1 to fix the other door 3 to the frame 1, and when the movable body 12 moves to the other upper and lower unlocking position, The lock 14 is pulled out and the other door 3 is released.
The operation member 13 can be operated from the door front end surface 3b of the other door 3, and when the outdoor person opens the one door 2 in a small range restricted by the padlock 4, the door front end surface 2b and the other It can be operated by putting a hand through a gap between the door 3 and the door front end surface 3b.

As shown in FIGS. 3 to 5, the lock device 20 includes a main body 21, a lock member 22, and an operation member 23, and the main body 21 is attached to the other door 3.
The lock member 22 is movable to a lock position where the lock member 22 interferes with the movable body 12 so as not to move from the locked position to the unlocked position, and to a lock release position which allows the above-mentioned movement away from the movable body 12. Thus, the moving operation is performed by the operation member 23.
The operation member 23 is located on the indoor side surface 3a of the other door 3, and the outside person cannot be seen from the above-mentioned gap, and the outside person is difficult to operate by putting a hand through the above-mentioned gap.

In addition, the operation member 13 of the fixed lock 10 and the operation member 23 of the locking device 20 are provided at positions close to each other in the vertical direction, and an outdoor person puts the right hand and the left hand through the gap, and both the operation members 13 are inserted. , 23 at the same time, the right hand and the left hand collide with each other so that they interfere with each other.
By doing in this way, it is very difficult and time-consuming to operate both the operation members 13 and 23 by one person from the outdoors, and the fixed lock 10 cannot be unlocked from the outdoors.

  In the above-described embodiment, the lock member 22 is urged to move toward the lock position by the elastic member 24. When the movable body 12 is in the locked position indicated by the phantom line, the lock member 22 is moved to the lock position indicated by the phantom line by the elastic member 24, and when the movable body 12 is in the unlocked position indicated by the solid line, the lock member 22 is movable. 12, the elastic member 24 is pressed as shown by a solid line, and when the movable body 12 is moved from this state to the locking position, the locking member 22 is moved to the locking position.

In this way, the unlocked fixed lock 10 can be locked only by operating the operation member 13, and when the fixed lock 10 is locked, the lock member 22 of the lock device 20 is made of the elastic material 24. Since it moves to the locking position and enters the locked state, the operation is easy and the locking device 20 is not forgotten to be locked.
Further, in order to unlock the fixed lock 10 in the locked state, the operation member 23 of the locking device 20 is operated to move the lock member 22 in the lock position to the unlocked position and hold it, and the operation member 13 of the fixed lock 10 is held. To move the movable body 12 to the unlocking position and unlock it.

In this embodiment, the fixed lock 10 is a French drop, and as shown in FIGS. 3 to 6, the main body 11 has an opening 11 a at the middle in the longitudinal direction that extends in the vertical direction and opens on the front and back surfaces. A first concave portion 11b is provided at one end portion in the longitudinal direction, and a second concave portion 11c is provided at the other end portion in the longitudinal direction so as to open to the surface of the main body 11.
Attachment holes 11d are formed at both ends in the longitudinal direction of the main body 11, and screws are attached to the other door 3 through the attachment holes 11d.
A guide portion 15 is formed on the back surface of the main body 11. The guide portion 15 includes a guide vertical surface 15a and a pair of guide pins 15b in the longitudinal direction, and the movable body 12 is guided along the guide portion 15 so as to be movable up and down.
The movable body 12 includes a sliding body 12a that is guided to move up and down along the guide portion 15, and a lock 12b attached to the sliding body 12a.
A slider 16 is provided on the sliding body 12a so as to be slidable in the front and back direction (that is, the direction orthogonal to the longitudinal direction).

The operation member 13 is attached to the main body 11 so as to be swingable in the longitudinal direction (vertical direction) with a pin 17 at one end in the longitudinal direction, and the other longitudinal end portion 13a is the first recess 11b and the second recess. 11c is used as a finger-hanging portion.
One end of the operating member 13 in the longitudinal direction is connected to the slider 16 by a pin 18, and the slider 16 slides in the front and back direction along the sliding body 12 a by swinging the operating member 13 up and down. However, the sliding body 12a moves up and down together with the slider 16.
For example, when the operating member 13 is swung downward, the movable body 12 moves upward and becomes the unlocked position. When the operating member 13 is swung upward, the movable body 12 moves downward to the locked position.

As shown in FIGS. 5 and 7, the locking device 20 has a main body 21 having holes 21a passing through the front and back surfaces in the middle of the upper and lower sides, and a pair of projecting pieces 21b on the back surfaces on both sides of the hole 21a. In addition, a long hole 21c is formed in the protruding piece 21b, and a mounting hole 21d is formed in each of the upper and lower ends.
The lock member 22 and the operation member 23 are integrally formed in a rectangular bar shape, and are inserted into the hole 21a so as to be movable in the direction of the indoor exterior.
A pin 25 is attached to the lock member 22 through the pin 25, and the pin 25 is inserted into the elongated hole 21c of the protruding piece 21b.
An elastic material 24 (for example, a spring) is provided between the pin 25 and the back surface of the main body 21.
The lock member 22 is moved toward the outdoor side by the elastic member 24 together with the operation member 23 and is held at the above-mentioned lock position. By pulling the operation member 23 toward the indoor side, the lock member 22 moves toward the indoor side. To the aforementioned unlock position.

The main body 21 of the lock device 20 is attached so that the lock member 22 is in the same position in the left-right direction as the movable body 12 of the fixed lock 10.
When the movable body 12 is in the unlocked position, as shown in FIG. 4, the lock member 22 is held by the elastic material 24 so that the front end surface 22 a is pressed against the indoor side surface 12 c of the movable body 12.
In this state, the movable body 12 can move the indoor side surface 12 c along the distal end surface 22 a of the lock member 22 to the locking position.
When the movable body 12 is in the locked position, as shown in phantom lines in FIG. 4, the upper end surface 12d is below the lock member 22, and the lock member 22 is an elastic material 24 as shown in phantom lines in FIG. When the movable body 12 moves to a position facing the upper end surface 12d and the movable body 12 attempts to move to the unlocked position, the upper end surface 12d interferes with the lock member 22 so that the movable body 12 cannot move to the unlocked position. To do.
From the state described above, the lock member 22 moves toward the indoor side against the elastic member 24 by pulling the operation member 23 toward the indoor side, and is closer to the indoor side than the indoor side surface 12c of the movable body 12, The movable body 12 can move to the unlocking position.

  The above-described fixed lock 10 is not limited to dropping in France, and a movable body is used as a housing, a knob is provided on the housing as an operation member, and the housing is moved up and down to be inserted into and pulled out from the lock receiver 14. good.

As shown in FIG. 5, a protruding portion 3 c that protrudes toward the indoor side surface 2 a of one door 2 is formed on the indoor side surface 3 a of the other door 3. For example, the vertical frame member 3d forming the other door 3 has a shape having a protruding portion 3c having a dovetail groove in the indoor side portion thereof, and a summit watertight material is attached to the dovetail groove so that the interior of the one door 2 can be used. It contacts the side surface 2a.
In this way, when an outdoor person tries to operate the operation member 23 by putting his hand through the gap between the one door 2 and the other door 3, the above-mentioned protruding portion 3c becomes a hindrance and puts his hand. This is more preferable because it is difficult to put in and, in some cases, the hand does not reach the operation member 23.
In addition, since the operation member 23 is pulled to the indoor side and moves to the unlock position, it is difficult for an outdoor person to operate.

  As described above, the lock member 22 is moved to the unlock position by pulling the operation member 23 of the lock device 20 to the indoor side. However, the operation member 23 is pulled or rotated to the indoor side while rotating the operation member 23. Thus, the lock member 22 may be moved to the unlock position.

1 is an overall schematic internal view showing an embodiment of the present invention. 1 is an overall schematic cross-sectional view showing an embodiment of the present invention. It is a detailed inside view of a fixed lock and a lock device part in the other door. It is a detailed side view of the fixed lock and lock device part in the other door. It is a detailed enlarged plan view of the fixed lock and the locking device part in the other door. It is a longitudinal cross-sectional view of a fixed lock. It is a longitudinal cross-sectional view of a locking device.

  DESCRIPTION OF SYMBOLS 1 ... Frame, 2 ... One door, 2a ... Indoor side surface, 2b ... One end surface, 3 ... The other door, 3a ... Indoor side surface, 3b ... One end surface, 10 ... Fixed lock, 11 ... Main body, 12 ... Movable body, DESCRIPTION OF SYMBOLS 13 ... Operation member, 14 ... Elastic material, 20 ... Locking device, 21 ... Main body, 22 ... Lock member, 23 ... Operation member.

Claims (3)

Two doors are attached to the frame so that both doors can be opened.
Attach a padlock that regulates the opening of one door to a small range where people cannot go in and out over this one door and the other door,
On the other door, the locked state in which the door is fixed to the frame and the unlocked state in which the door is unlocked are operated from the indoor side, and the fixed lock in the locked state is in the unlocked state. a locked state to prevent the locking device from the indoor side Ru is operated to the unlocked state for allowing the an unlocked state mounting,
The fixed lock includes a locking position for fixing the door to the frame, a movable body that moves to the unlocking position for releasing the fixing, and an operation member that moves the movable body to the locking position and the unlocking position.
The lock device is movable between a lock position and a lock release position, and is a lock member held in the lock position by an elastic material, and an operation member that moves the lock member to the lock release position against the elastic material With
When the lock member is in the locked position, the movable body at the locked position is locked so as not to move to the unlocked position,
The double-open door, wherein when the lock member is in the unlock position, the movable body at the lock position can be moved to the unlock position so that the lock can be released. The lock member is pressed against the movable body by an elastic material when the movable body of the fixed lock is in the unlocked position, and when the movable body moves to the locked position, the lock member is moved to the locked position by the elastic material. The double door according to 1. The operation member of the fixed lock and the operation member of the locking device are moved close to each other in the vertical direction, and one hand attempting to operate one of the operation members interferes with the other hand attempting to operate the other operation member. The double door according to claim 1 or 2, wherein the double door is provided.

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