JP2007113349A - Biparting door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a biparting door increased in crime prevention property, by utilizing the locked state of an alarm lock as it is to prevent a fixed lock from being unlocked. <P>SOLUTION: This biparting door comprises one door body 4 secured to a door frame by the fixed lock and the other door body 3 having an opening restricted by locking the alarm lock 3 between the one and the other door bodies. The fixed lock is allowed to lock or unlock by the rotating operation of operation levers 11a, 12a installed at the door end apparent surface of one door body 4. The alarm lock 8 comprises a continuous rod 13 or a connection chain having the base end fitted to the other door body 3 and the top end disengageably locked to one door body 4. When the other door body 3 is opened when the alarm lock 8 is locked, the continuous rod 13 or the connection chain is positioned in the rotating range of the operation lever 11a, and the top end is locked to one door body 4 to restrict the rotating operation to the operation lever 11a from the outside to the unlocking side. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention relates to a double door that improves crime prevention.

As an entrance door of an apartment, a double door generally called a parent-child door is sometimes used. The double doors are each equipped with a "French drop", known as a fixed lock using a lifting and dropping bar-shaped bracket, at the top and bottom positions of one of the door bodies that can be opened on the door frame. Then, one door body is fixed to the door frame so that it does not normally open. The other door body is provided with a locking device, and a connecting chain or linkage that regulates the opening degree of the door body is detachably engaged with the one door body, so-called door chain, door guard, etc. There is a heart lock known by the name. The normal door opening and closing is used as a single door with only the other door body, and when carrying in and out large furniture or indoor equipment, both door bodies are configured to open. Generally popular.

And as a structure of the fixed lock employ | adopted as this kind of double doors, as shown in FIG.6 and FIG.7, operation which can be rotated up and down is possible to the up-and-down part B and B of the prospective surface of one door body A. Each of the levers C is incorporated, and the upper and lower protrusions D, D protruding by the rotation operation in the locking direction are fitted into locking metal fittings (not shown) provided on the door frame E side, and one door body A is attached to the door frame E. It is possible to release the fixing to the door frame E by immersing the upper and lower protrusions D and D into the door body A by the rotation operation of the operation lever C in the unlocking direction.

However, in the double door with such a configuration, even if the door lock F of the other door body G is locked between the door body A, the other door body G is protected by the door lock F. When the opening degree is opened, the operation lever C provided on the prospective surface of the one door body A is exposed (FIG. 7B), and an unauthorized solution is made to the operation lever C from the outside with bare hands. As shown in FIG. 7 (d), when one door body A is opened, both door bodies A and G are allowed to use the guard lock F as a result. Within the range, it was possible to double-open, and there was a problem in crime prevention that the lock F was easy to unlock.

In view of this, there has been proposed a double door structure in which a lock mechanism for holding the lock in a locked state is provided in the lock itself so that the lock in the locked state can be released with an unlocking tool (Patent Document 1).

Although the above-mentioned proposal makes it impossible to operate the operation lever of the fixed lock in an unauthorized manner and can solve the above-mentioned crime prevention problems, it has a structure in which a lock mechanism is incorporated in the fixed lock. Since it is complicated and expensive, and it cannot be unlocked without an unlocking tool, there is room for improvement that there is an inconvenience that an unlocking tool is required to open the door even during daily use. It was a thing.
Japanese Patent No. 3015292 (Japanese Patent Laid-Open No. 9-165961)

An object of the present invention is to improve the crime prevention property of a double door without changing the configuration of a fixed lock mechanism for fixing one door of the double door. Another object of the present invention is to prevent the locking lock from being unlocked by using the locking state of the guard as the basic component of the double door.

The first technical means adopted by the present invention includes: one door body fixed to the door frame by a fixed lock; and the other door body whose opening degree is restricted between the one door body by a precaution lock. The fixed lock can be locked / unlocked by moving the operating lever provided on the door side expected surface of one door body, and the other door body is unlocked by the operating lever. A movement restricting body that restricts the movement operation to the lock side is provided, and the movement restricting body is positioned in the movement range of the operation lever when the other door body is opened in the locked state of the lock. It is a double door provided in the other door.

In one aspect, the movement restricting body is provided at a height position that matches the height position at which the operation lever of the fixed lock is provided, and when the other door body is opened in the locked state of the guard lock, The movement restricting body is close to and opposed to the operation lever and is located in the movement range of the operation lever. In one preferable aspect, the movement restricting body is a component of a security lock. In a more specific example, the lock is a door guard or a door chain, and the element constituting the movement restricting body is a door guard linkage or a door chain connection chain. In an embodiment to be described later, the linkage or the connecting chain has a base end attached to the finding surface of the other door body, and a distal end engaged with or disengaged from the indoor finding surface (including the door holding portion) of the one door body. It is freely attached. In the locked state of the lock, the linkage or connecting chain is arranged in the vicinity of the operation lever. When the other door body is opened in the locked state of the lock, the door is close to the operation lever. Opposing and straddling the operation lever, it functions as a movement restricting body.

The second technical means adopted by the present invention includes: one door body fixed to the door frame by a fixed lock; and the other door body whose opening degree is restricted between the one door body by a precaution lock. The fixed lock can be locked / unlocked by moving the operating lever provided on the door side expected surface of one door body, and the guard lock connects the door bodies. And the opening degree restricting body is located in the movement range of the operating lever when the other door body is opened in the locked state of the guard, and the opening of the operating lever is disengaged. A double door that extends between the doors so as to restrict the movement operation to the lock side. In one aspect, the opening degree restricting body is configured such that the base end is attached to one door body of the two door bodies, and the distal end is detachably attached to the other door body. Connect between them. In one aspect, by matching the height position where the opening degree restricting body is provided and the height position where the operation lever of the fixed lock is provided, when the other door body is opened in the locked state of the guard lock In addition, the opening degree regulating body is located in the movement range of the operation lever. In one aspect, the lock is a door guard or a door chain, and the opening degree restricting body is a door guard linkage or a door chain connection chain.
In one preferable aspect, the operation lever is operated to rotate. Therefore, in one aspect, in the first and second technical means, “movement” can be replaced with “rotation”. That is, “movement operation” can be replaced with “rotation operation”, “movement restricting body” can be replaced with “rotation restricting body”, and “movement range” can be replaced with “rotation range”. In addition, as another aspect of the operation lever, one that is slid up and down is exemplified.

According to the present invention, when the other door body is opened in the locked state of the guard lock, the operation lever is prevented from being turned from the outside to the unlocking side by the rotation restricting body provided on the other door body side. Since it is configured to do so, there is no possibility that the fixed lock is illegally unlocked from the outside by bare hands, and unauthorized entry from the outside through the double door can be prevented beforehand. In the case where the component of the guard lock also serves as the rotation restricting body, the basic components of the existing fixed lock and the guard lock can be combined as they are to improve the crime prevention, increasing the number of parts and the new configuration Therefore, the function can be sufficiently exerted as a double door having a security function while achieving cost reduction.

The configuration of the present invention will be described based on the embodiment shown in the drawings. 1 to 3, reference numeral 1 denotes a double door as viewed from the indoor side. The double door 1 can be double-opened via a hinge (not shown) in a four-frame door frame 2 installed in a building opening. Door bodies 3 and 4 are installed, and in addition to the opening / closing handle 5 and the locking device 6, the door body 3 is positioned on the indoor side finding surface 7 on the door end side (rotating tip side). Thus, a double door 1 is configured by providing a lock 8 to be described later. 9 is a door closer, and 10 is a viewing window for confirming visitors from the inside. The double door 1 is a so-called external door.

Locking locks (in / out rods) 11 and 12 are provided in the vertical position on the door end side (rotating tip side) of the door body 4, and the fixed locks 11 and 12 are provided at the vertical position of the door frame 2. The door body 4 is normally held in a closed state by being fitted into a locking metal fitting that is not. On the prospective surface 4a at the height position surrounded by a dotted line in FIG. 1 of the door body 4, operation levers 11a and 12a that are rotatable up and down for locking and unlocking the fixed locks 11 and 12 are respectively incorporated. . By rotating the operating levers 11a and 12a, the fixed locks 11 and 12 are moved in and out to lock / unlock. A rotation operation of the upper operation lever 11a will be described with reference to FIG. The operation lever 11a is in a locked state in which the fixed lock 11 is fitted into the locking bracket on the door frame 2 side at the position of the operation lever 11 shown in FIG. 3C, and the operation lever 11a is flipped up to the upper side indicated by a dotted line. Then, the fixed lock 11 is operated so as to be in an unlocked state in which it is detached from the locking metal fitting. Note that the position of the lower operation lever 12a is upside down with respect to the position of the upper operation lever 11a in the locked state and the unlocked state. By rotating the operation lever 12a downward from the locked state, 12 is in an unlocked state in which it is detached from the locking metal fitting. The fixed lock mechanism including the fixed locks 11 and 12 and the operation levers 11a and 12a is a so-called French drop.

In addition, the lock 8 has a distal end 13 a of a U-shaped arm-shaped linkage 13 fixed to the indoor-side finding surface 7 of the other door body 3 so that the proximal end of the door lock 8 is pivotable. It is configured to be detachably engaged with the engagement receiving pin 15 fixed to the door stop 14, and in the locked state of the guard 8, as shown in FIG. The opening degree is regulated by the linkage 13. The guard 8 is a so-called door guard.

The guard 8 is disposed in the vicinity of the operation lever 11a of the fixed lock 11 disposed on the upper side of the door body 4 in the locked state. More specifically, the linkage 13 of the guard 8 extends horizontally, and the height of the linkage 13 is positioned within the vertical length of the operation lever 11a when the fixed lock 11 is locked. Further, the door body 3 is mounted on the indoor-side finding surface. In the open state of the other door body 3 in which the opening degree of the guard 8 is locked and the opening degree is restricted by the linkage 13, the linkage 13 extends so as to face and oppose the operation lever 11a. As shown in FIGS. 3B and 3C, the linkage 13 is positioned between the door bodies 3 and 4 within the rotation range of the operation lever 11a of the fixed lock 11 to prevent the rotation in the unlocking direction. It functions as a rotation restricting body. At this time, the linkage 13 may be separated from the operation lever 11a to such an extent that the operation lever 11a is allowed to rotate within a range in which the fixed lock 11 is not unlocked.

Therefore, when the unlocking operation is attempted from the outside to the operation lever 11a in the locked state of the guard 8, the other door body 3 is opened and the operation lever 11a of the fixed lock 11 is exposed. In this case, the operation lever 11a cannot be unlocked from the outside with bare hands. For this reason, the fixed lock 11 is prevented from being unlocked illegally, and if the fixed lock 11 is not unlocked, the guard lock 8 is not unlocked, and the double door 1 crime prevention can be ensured.

In the present embodiment, with respect to the fixed lock 12 provided below the one door body 4, the open state of the door body 3 whose opening degree is regulated by the linkage 13 in the locked state of the guard 8. However, the unlocking operation of the operation lever 12a can be performed and the fixed lock 12 may be unlocked. However, the door body 3 maintains the locked state only by the fixed lock 11, and thus the security function is hindered. Absent. In this regard, instead of the configuration in which the independent fixed locks 11 and 12 are employed for the one door body 3 as described above, the upper and lower fixed locks 11 and 12 are simply locked and unlocked by the operation lever 11a. By adopting a lock with a lock structure that allows 12 to appear and disappear at the same time (a so-called double action specification French drop where a rod moves up and down with one operating lever), a stronger crime prevention function can be obtained.

4 and 5 show another embodiment of the present invention. 4 (a) and 4 (b), when the door lock 3 is in the open state in which the opening degree is restricted by the linkage 17 in the locked state of the guard 16 and enters the rotation range of the operation lever 11a of the fixed lock 11. A configuration is shown in which the rotation restricting plate 18 is formed integrally with the linkage 17 of the lock 16 or prepared as a separate body. In the existing lock 16, when the linkage 17 and the operation lever 11 a are separated in the vertical direction (for example, in the state where there is no rotation restricting plate 18 in FIG. 4B), the linkage 17 By attaching the rotation restricting plate 18 prepared as a separate body or by replacing only the linkage 17 with the linkage 17 in which the rotation restricting plate 18 is integrally formed, The present invention can also be applied to this. A cuff 19 shown in FIG. 5C is a so-called door chain, and is an engagement receiver fixed to the back surface of the door contact portion 14 of one door body 4 instead of the linkage 13 shown in the above embodiment. The front end of the connecting chain 20 secured to the pin 21 on the base end side is detachably engaged with the engaged portion 20a provided on the face of the other door body 3, so that the lock 19 When the door body 3 is in the open state in which the opening degree is restricted by the connection chain 20 in the locked state, the connection chain 20 is positioned within the rotation range of the operation lever 11a.

In each of the above-described embodiments, the linkages 13 and 17 of the guards 8, 16, and 19 or the connecting chain 20 are positioned within the rotation range of the operation lever 11 a of the fixed lock 11, and the door body 3, 4 that functions as a rotation restricting body that extends between the four and prevents the rotation in the unlocking direction, but as shown in FIG. In a state where the body 3 is open, a cross-sectional view L including a restriction surface 22a close to at least one of the operation levers 11a and 12a of the fixed locks 11 and 12 and a fixed surface 22b fixed to the finding surface 7 of the door body 3 You may make it comprise the character-shaped rotation control body 22 separately. In this configuration, as shown in FIG. 5B, the restricting surface 22a that has entered the rotation range of the operation lever 11a (12a) prevents the operation lever 11a (12a) from rotating in the unlocking direction. It will be. Therefore, if the rotation restricting body 22 is configured as a separate body as described above, existing lock locks 11 and 12 that are individually operated are installed at the upper and lower positions on the door end side (rotating tip side) of the door body. It becomes possible to apply to the double doors later.

The structure of the present invention can be applied to a double door that employs a guard lock and a fixed lock.

It is the whole front view of a double door. (A) is operation | movement explanatory drawing which shows the locking state of the guard in the double door, (b) is operation | movement explanatory drawing which shows the case where a door is open | released in the locking state of a guard. (A) is an enlarged view showing a lock in the unlocked state, (b) is an enlarged end view showing the locked state of the lock, and (c) is an explanation of the action showing a state in which the door body is opened in the locked state of the lock. FIG. (A) is an enlarged end view showing a locked state of a guard lock of another configuration (a view seen from an arrow in (b)), and (b) shows a state in which the door body is opened in the locked state of the above-described heart lock. Action explanatory drawing, (c) is an action explanatory drawing which shows the state which opened the door body in the locked state of the guard of another structure. (A) is action explanatory drawing which shows the positional relationship of a rotation control body and a fixed lock, (b) shows the positional relationship of the rotation control body and a fixed lock at the time of opening a door in the locking state of a precaution lock. It is an operation explanatory view. It is a whole front view of the conventional double door. (A)-(d) is an effect | action explanatory drawing which shows the relationship between the fixed lock and the precaution lock in the conventional double door.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Double door 2 Door frame 3 The other door body 4 One door body 4a Expected surface
7 Finding surface
8 Padlock 11 Fixed lock 11a Operation lever
12 Fixed lock 12a Operation lever
13 Connection 20 Connection chain 22 Rotation restricting body

Claims (4)

One door body fixed to the door frame by a fixed lock;
The other door body, the opening degree of which is restricted between the door body and one door body by a precaution,
The fixed lock can be locked and unlocked by moving the operating lever provided on the door side expected surface of one door body,
The other door body is provided with a movement regulating body that regulates the movement operation of the operation lever to the unlocking side,
The movement restricting body is a double door that is provided on the other door so that the movement restricting body is positioned within the movement range of the operation lever when the other door body is opened in the locked state of the lock.   The double door according to claim 1, wherein the movement restricting body is a component of a security lock. One door body fixed to the door frame by a fixed lock;
The other door body, the opening degree of which is restricted between the door body and one door body by a precaution,
The fixed lock can be locked and unlocked by moving the operating lever provided on the door side expected surface of one door body,
The precautionary lock has an opening degree regulating body that connects the door bodies,
The opening degree restricting body is located in a movement range of the operation lever when the other door body is opened in the locked state of the precautionary lock, and restricts the movement operation of the operation lever to the unlocking side. And a double door extending between the doors.   The double door according to claim 3, wherein the opening degree restricting body is a door guard linkage or a door chain connecting chain.

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