JP3086767U - Door lock chain and arm that can be used when going out. - Google Patents

Abstract

(57) [Summary] [Problem] Since a door lock chain is made into a three-part type that can be detached from a fixed portion, the door lock chain can be locked and unlocked even from the outside of the door, and a normal door lock is provided. Provide a door lock chain that looks the same as the chain. SOLUTION: In the conventional door lock chain, (3) the base of the door lock chain is mechanically
It is a detachable door lock chain that can be removed using an electronic key or the like and (2) a door lock chain base lock hole (10 ′) provided in the door lock chain fixing part main body, and has a conventional appearance. It is characterized by the fact that it can be locked and unlocked even from the outside of the door.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 This inventor has made it possible to lock a general door lock chain that could only be locked and unlocked inside the door, from the outside of the door when going out, etc., and to keep the appearance of the conventional door lock chain unchanged. It is about lock chains.

[0002]

[Prior art]

 The conventional door lock chain is locked and unlocked from the outside of the door due to its structure when there is nobody indoors, such as when leaving the house when going out, except for some expensive electronic items. When the keys were unlocked by picking or the like, which became very large recently, the locks could not be locked and would easily enter the house, which was useless even as a security device.

Although some electronic products that are commercially available can be locked and unlocked from the outside for the time being, they appear to be of a shape that can be locked even from the outside in appearance. It has no effect on psychological pressure and lacks versatility because it is expensive.

[0004]

[Problems to be solved by the invention]

 The present invention has been devised in order to eliminate the disadvantages, and the door lock chain of the present invention is set even when the house is away and the key is unlocked by a picking burglar or the like. If it is found, the actor gives up on the house in consideration of the unexpectedness of the matter (psychological pressure such as the question of not being absent, etc.) and the loss of time and labor until unlocking, and so on. In particular, unlike the electronic type, the appearance is almost the same as the conventional one, so the picking thief can only be locked from the inside before being aware that it can be locked from the outside, that is, at home There should be an awareness that there is, and the effect is much higher than the conventional ones and the electronic ones mentioned above.

A mechanism of a conventional door lock chain will be described with reference to FIG. Basically, there are (2) the door lock chain fixing part fixedly attached to the house side and the door side, and (4) the door lock chain holder (there is a reverse one depending on the manufacturer). (3) The base of the chain that rotates 360 degrees freely is fixed to the chain fixing part main body. (8) There is a door lock chain, and the door lock chain receiver has a door lock chain (1) at the top as shown in the figure. ) The chain tip is inserted. (5) There is a chain tip setting hole, and the chain tip slides freely along the tip. (6) There is a chain tip slide groove.

[0006] The position of the door lock chain fixing portion main body and the door lock chain receiving member are fixed such that the lower portions thereof are substantially at the same height, and the length of the door lock chain is such that the door is closed and the door is closed. The length (length from (3) to (5)) is such that the chain tip can be inserted into the chain tip setting hole (slightly longer) in the state where it is in the position.

[0007] The tip of the chain inserted through the chain receiving hole is dropped down along the slide groove and set. Therefore, when the door is opened will be described with reference to FIG. 2, the door can be opened only by the length of the chain from (3) the base of the chain to (5) the set hole. At this time, the gap between the door and the house is generally such that human hands can access it.

[0008]

[Means for solving the problem]

 According to the present invention, as shown in Fig. 2, when the door is opened as described above, there is a gap for the length of the door lock chain and there is space for human hands, but from the set hole The gap before removing the door lock chain is impossible because the length of the chain does not accompany, and the disadvantage that was impossible unless the door was closed is replaced by using the same gap as the conventional one. By simply detaching the base of the chain that can be detached with a key, the door lock chain can be detached even from the outside of the door.

[0009]

[Embodiment of the invention]

 The present invention will be described with reference to FIG. The structure is almost the same as the structure of the conventional door lock chain, including the size, etc., and the appearance is not much different from the conventional one, and the appearance from the outside of the door when set is exactly the same.

[0010]

【Example】

 The (3 ') detachable 360-degree rotatable chain root (9') detachable part locking mechanism, which is the heart of the present invention, simply inserts the root tip into the (10 ') door lock chain root lock hole with one hand. This is a very simple and accurate method of locking and unlocking with the (11 ') detachable key. The locking and unlocking can be performed by using a mechanical key or by using an electronic method such as a radio wave, a sound wave, and a laser.

[0011] In addition, the detailed description and drawings of the present invention have been described and proposed on the subject of general use of a chain in order to make the door lock chain mechanism easy to understand, but at present, instead of the chain, There are several types that use a foldable arm in the market.However, by using the present invention, the attachment and detachment of the arm mounting base is performed in the same way, that is, the door lock body on the house side, the door-side support, and the arm. By dividing into three, the same effect is achieved.

[0012]

[Effect of the invention]

 As described above, the present invention is installed separately from the door lock chain that is already installed in each household, so that it is a double crime prevention at home, and the locking condition of the common lock lock when going out. However, it is a very effective and reliable anti-picking thief countermeasure product, which is currently very popular, as a security product that takes advantage of preconceptions.

[Brief description of the drawings]

FIG. 1 is a perspective view of a conventional door lock chain before and after locking with a door closed.

FIG. 2 is a perspective view of a conventional door lock chain in a state in which a gap between doors is formed and a hand is accessible by the length of the chain when the door is opened.

FIG. 3 is a perspective view of the present invention.

[Explanation of symbols]

 (3 ') Detachable 360-degree rotatable chain base (4') Door lock chain holder (9 ') Detachable part lock mechanism (10') Door lock chain base lock hole (11 ') Detachable part key

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[Procedure amendment]

[Submission date] January 21, 2002 (2002.1.2
1)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims for utility model registration

[Correction method] Change

[Correction contents]

[Utility model registration claims]

Claims (1)

[Utility model registration claims] 1. The (3 ') root of the (8') door lock chain (and the arm, the same applies hereinafter) in FIG. 3 is made detachable from the (2 ') door lock chain fixing portion main body by a key or the like, and the door is locked. Security door lock chain that locks and unlocks the door lock chain from outside.