JP4489526B2 - Locking position moving type door locking device - Google Patents

Description

  The present invention relates to a movable door lock that can prevent unauthorized unlocking.

  A cylinder lock embedded in the center of a handle is generally used as a door lock for a house. The cylinder lock is unlocked by a predetermined key. However, such household door locks are easily unlocked illegally, and for example, illegal unlocking using a picking tool or unauthorized unlocking by turning a thumb turn may cause damage such as theft. As countermeasures to prevent theft by such unauthorized unlocking, the locking device has a structure that is difficult to be picked or is equipped with a thumb-turn prevention tool, but the defense strength is insufficient and the structure is complicated It becomes expensive.

As a device for preventing unauthorized unlocking of a door lock, a double lock device for a door lock in which a double cover is provided on a handle of the door lock is known (for example, see Patent Document 1).
JP 2001-173278 A

  However, in the conventional configuration as shown in the above-mentioned publication, a cylinder lock used for a front door lock of a house or the like is used to maliciously unlock the locking device by using a metal jig to close the locking device. There has been a problem that it is still inadequate in terms of anti-theft against such unauthorized unlocking.

  The present invention solves the above-mentioned problem, and by providing a movable door lock body, it is possible to prevent unauthorized unlocking in advance. An object is to provide an apparatus.

  In order to achieve the above object, the invention of claim 1 is a door locking device that locks a door that opens and closes by rotating about one end as an axis at the other end of the door with respect to a pivot. A plurality of grooves are provided on the inner surface and the locking side to be distributed vertically, and a key concealing part is provided to prevent the locking position from being seen from the outside when the door is closed, and is inserted into the groove and fixed. The door lock body has a door key which can be moved in and out by operation and a lock key of the door lock body, and the pivot body is inserted into the groove corresponding to the plurality of grooves. Further, a door key hole into which a front end portion of the door key of the door lock body is fitted is provided, and a lock key hole into which the front end portion of the lock key is fitted is provided in the door. By inserting into the plurality of grooves It is obtained to be able to change the lock position.

  According to the first aspect of the present invention, a plurality of door keys of the movable door lock body can be mounted at arbitrary positions in the door, and the locked position is not visible from the outside by the key concealing portion. Even if an intruder tries to unlock it illegally, it is difficult to understand the existence of the key, and even if it breaks the key and tries to enter the room, it takes time to find multiple key positions that are going to be stenotic and prevent intrusion And a safe lock can be obtained.

  Hereinafter, a door locking device according to an embodiment of the present invention will be described with reference to the drawings. 1 and 2 show a basic key lock configuration of the locking device 1 according to the present embodiment. The door locking device 1 is configured by a box-shaped door lock body 4 including an opening / closing door 2, a door pivot 3 and lock keys 41a and 41b constituting the door locking device 1, and the opening / closing door 2 is a locking side on the inner surface thereof. A plurality of grooves 23 are provided on the locking side so as to be distributed vertically along the side wall portion 22 of the door, and a key concealing portion 24 is provided so that the locking position cannot be seen from the outside when the open / close door 2 is closed. It has been. The door lock body 4 is formed so as to fit into the groove 23, and the lock key holes 21 a and 21 b provided on the upper and lower surfaces of the groove portion 23 at the front ends of the lock keys 41 a and 41 b of the door lock body 4 itself. And is fixed to the open / close door 2. On the other hand, the door lock body 4 is inserted into the door key hole 31 provided in the side wall portion 32 of the door pivot body 3 through the through hole 25 of the side wall portion 22 of the opening / closing door 2 through the front end portion of the door key 42 which can be freely moved by operation. The door 2 and the door pivot 3 are locked.

  Then, the lock keys 41a and 41b and the door key 42 are opened and closed by the lock key operation knob 43 and the door key operation knob 44 provided on the door lock body 4, whereby the door locking device 1 is opened and closed. The lock keys 41a and 41b are moved up and down by the lock key operation knob 43, inserted into the lock key holes 21a and 21b, and fixed to the side wall portion 22 of the open / close door, and the door key 42 is moved right and left by the door key operation knob 44. The door 2 and the door pivot 3 are locked.

  FIG. 3 shows the configuration of the inner surface of the door locking device 1, and FIG. 4 shows a part 1-1 of the door locking device 1 surrounded by the dotted line in FIG. Along with the side wall portion 22 on the locking side of the open / close door 2, a plurality of grooves 23 a to 23 f are provided on the locking side in the vertical direction, and a key concealing portion 24 is provided. Each of the plurality of groove portions 23a to 23f can be fitted with the door lock body 4 in FIG. 2, and is provided by each lock key hole 21 (refers to lock key holes 21a, 21b, 21c, 21d, 21e, 21f, etc.). Fixed. Through the door key 42 (shown in FIG. 1) of the fixed door lock body 4 and the door key hole 31 (referring to the door key holes 31a, 31b, 31c, etc.) of the side wall 32 on the locking side of the door pivot 3 Through the through holes 25a, 25b, 25c, 25d, 25e, 25f, etc., the open / close door 2 and the door pivot 3 are locked. Therefore, since the door lock body 4 can be fitted into any of the plurality of groove portions 23a to 23f, the position of the door key 42 can be arbitrarily changed. The door key holes 31a, 31b, 31c and the like may be a single groove that is continuous up and down.

  Furthermore, by providing a plurality of door lock bodies 4, the door can be locked at a plurality of positions of the open / close door 2, and a safer locking device can be obtained. Moreover, since the key concealment part 24 is provided in the opening / closing door 2, it becomes very difficult to find the door key position of the intruder from the outside. In FIG. 3, the opening / closing door 2 includes a fixed lock key portion 5 that cannot move the place, and is configured by an opening / closing lock 52 and a lock key lock 53 by a handle 51 for opening / closing the door. Yes.

  Further, when the door locking device 1 is locked, the door pivot 3 is opened from the locking side end surface of the outer surface of the opening / closing door 2 so that the key position of the opening / closing door 2 cannot be seen from the gap of the door locking device 1. A key concealed portion 24 of a short bar-shaped projection facing the side is provided to close the gap between the open / close door 2 and the door pivot 3. By doing so, the position of the key of the door device is not visible from the outside, and the lock breakage from illegal intruders is prevented.

  FIG. 5 shows a state in which the door lock body 4 is mounted inside the open / close door 2 of FIG. In the state shown in the figure, the door lock body 4 is attached to the top of the inner surface of the open / close door 2, and is fixed to the open / close door 2 by fitting the lock keys 41a and 41b into the lock key holes 21a and 21b. . The door pivot 3 and the open / close door 2 are locked by the door key 42a.

  FIG. 6 shows a case where the door 2 is equipped with a plurality of door lock bodies 4. Here, two door lock bodies 4 are mounted here. The door block bodies 4b and 4c have lock keys 41c, 41d and 41e and 41f, respectively, which are locked by the lock key holes 21c, 21d and 21i and 21j, and each door key 42b and 42c passes through the through holes 25b and 25e. Locked to the door pivot 3 (FIG. 4). In this way, the lock position can be freely changed by using a plurality of door lock bodies and inserting into a plurality of arbitrary grooves, resulting in a stronger door lock action and preventing illegal intruders. Can be strengthened.

  As mentioned above, since the door key position is not visible from outside the room, the intruder from outside cannot know the key location, and the position of the door lock can be changed. As a result, the intruders from outside are more difficult to understand the existence of the key, and even if you try to break the key and enter the room, it takes time and trouble to find the key position. Intruders can be prevented by being noticed and notified by neighbors, and the anti-theft property can be further enhanced. In addition, since the mechanism can be normally unlocked only from the inside, unlocking from the outside is extremely difficult, and the anti-theft property can be further enhanced.

  In addition, this invention is not restricted to the said embodiment, Various deformation | transformation are possible. For example, a plurality of door block bodies can be provided and door keys can be set apart at a plurality of locations, so that it is more difficult for the intruder from the outside to find the key position or troublesome to find, so that the anti-theft performance can be further improved. it can.

  Furthermore, if the door key is an electronic lock and the door key can be opened and closed by remote control, it is highly convenient and the door key can be locked from the outside when going out, so it is possible to lock the door more safely. It becomes.

The perspective view seen from the opening-and-closing door inner surface which shows the basic composition part of the door locking device which concerns on one Embodiment of this invention. The top view of the door locking device. The internal view of the door locking device. The perspective view of a part of the door locking device. The fragmentary perspective view of the opening-and-closing door inner surface to which the door locking device is applied. The perspective view of the opening-and-closing door inner surface to which the door locking device is applied.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Door locking device 2 Opening / closing door 3 Door pivot body 4 Door lock body 21 Lock key hole 22 Opening / closing door side wall part 23 Groove part 24 Key concealment part 25 Through-hole 31 Door key hole 32 Door pivot side wall part 41 Lock key 42 Door key

Claims (1)

A door locking device that locks a door that opens and closes by rotating with one end as an axis at the other end of the door with respect to a pivot,
A plurality of grooves are provided on the inner surface of the door, on the locking side, distributed vertically, and a key concealment is provided to prevent the locking position from being visible from the outside when the door is closed,
A door lock body that can be inserted into the groove and fixed,
This door lock body has a door key that can be freely moved by operation and its own lock key,
The pivot body is provided with a door key hole corresponding to the plurality of grooves, into which a front end portion of the door key of the door lock body inserted into the groove is fitted,
The door is provided with a lock key hole into which a tip of the lock key is fitted,
A lock position moving type door locking device characterized in that the locking position can be changed by inserting the door lock body into any of the plurality of grooves.

Images