JP3230168U - Auxiliary lock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To lock a hinged door from the indoor side, even if it is installed afterwards, it can be removed without leaving an attachment mark, and even in a rental property or the like which is obliged to restore the original state. Provide an auxiliary lock that can be applied to lock the inward-opening hinged door from the indoor side. SOLUTION: This is an auxiliary lock for locking an inward opening type hinged door D from the indoor side, and is a strike plate formed with a lock member mounting portion 11 protruding in the indoor direction, which is fixed to a door frame F by a screw 3. 1 and a lock member 2 that prevents the hinged door D from being opened by being attached to the lock member mounting portion 11 of the strike plate 1. [Selection diagram] Fig. 1

Description

The present invention relates to, for example, an auxiliary lock used as an auxiliary lock to be retrofitted to a hinged door (door) of a house or condominium, and particularly to an auxiliary lock for locking an inwardly-opening hinged door from the indoor side.

In recent years, as a security measure, there are increasing opportunities for retrofitting auxiliary locks to be installed in hinged doors of houses and condominiums.
As this auxiliary lock, a locking member holding piece projecting in the opening direction of the hinged door is attached to the door frame side of the hinged door, the locking member is attached to the locking member holding piece, and the locking member is brought into contact with the hinged door from the outside. Auxiliary locks that lock by this are known (see, for example, Patent Document 1).

By the way, the auxiliary lock described in Patent Document 1 is for an outward-opening type hinged door using a locking member, and is not suitable for use for an inward-opening type hinged door in a building of a house or condominium. ..

On the other hand, inward-opening hinged doors in houses and condominiums are not usually provided with a mechanism for locking the hinged door from the indoor side, except for toilets and the like.

In recent years, due to the diversification of usage patterns of houses and condominiums, there has been a request for a mechanism that allows the hinged door to be locked from the indoor side in order to protect privacy, and in particular, this mechanism is retrofitted. It was requested that it be applicable to rental properties, etc. that are obliged to restore their original condition, which is difficult to install in.

Japanese Unexamined Patent Publication No. 9-100665

In view of the above request, the present invention is a mechanism for locking the hinged door from the indoor side, and even if it is installed later, it can be removed without leaving an attachment mark, and it is obligatory to restore the original state. The purpose is to provide an auxiliary lock for locking an inward-opening hinged door from the indoor side, which can be applied to a rental property or the like.

In order to achieve the above object, the auxiliary lock of the present invention is an auxiliary lock for locking an inwardly-opening hinged door from the indoor side, and is equipped with a lock member that is fixed to the door frame by a screw and projects in the indoor direction. It is characterized in that it is composed of a strike plate having a portion formed therein and a lock member that prevents the hinged door from being opened by being attached to the lock member mounting portion of the strike plate.

In this case, the strike plate may be formed with elongated screw holes.

Further, the strike plate can be stacked and fixed on the existing strike plate.

Further, the lock member can be temporarily held on the back surface side of the strike plate via a magnet.

According to the auxiliary lock of the present invention, the hinged door is opened by attaching the strike plate, which is fixed to the door frame by a screw and forming a lock member mounting portion protruding in the indoor direction, and the lock member mounting portion of the strike plate. Since it is composed of a lock member that prevents it from being damaged, it can be removed without leaving any traces of installation even if it is installed later, and it can also be applied to rental properties that are obliged to restore the original state.

Further, by forming elongated screw holes in the strike plate, it is possible to cope with various existing strike plates.

Further, by stacking and fixing the strike plate on the existing strike plate, it is possible to prevent the existing strike plate from being lost.

Further, by temporarily holding the lock member on the back side of the strike plate via a magnet, it is possible to secure a storage place for the lock member when it is not attached and prevent the lock member from being lost. it can.

An embodiment of the auxiliary lock of the present invention is shown, where (a) is a plan view when locked and (b) is a plan view when unlocked. The auxiliary lock is shown, (a) is a perspective view when locked, and (b) is a perspective view when unlocked. The auxiliary lock is shown, (a) is a rear view excluding the back plate when locked, and (b) is a rear view excluding the back plate when unlocked. The strike plate of the auxiliary lock is shown, (a) is a front view, (b) is a right side view, (c) is a bottom view, and (d) is a perspective view. The lock member of the auxiliary lock is shown, (a) is a front view, (b) is a bottom view, (c) is a rear view, (d) is a left side view, (e) is a right side view, and (f) is a right side view. It is a perspective view. An example of use in which the strike plate of the auxiliary lock is overlapped and fixed on the existing strike plate is shown, (a) is a plan sectional view when locked, and (b) is a plan sectional view when unlocked.

Hereinafter, embodiments of the auxiliary lock of the present invention will be described with reference to the drawings.

1 to 5 show an embodiment of the auxiliary lock of the present invention.
This auxiliary lock is an auxiliary lock for locking the inward opening type hinged door D in a building of a house or condominium from the indoor side, and is fixed to the door frame F by a screw 3 and protrudes in the indoor direction. It is composed of a strike plate 1 on which a member mounting portion 11 is formed, and a lock member 2 that prevents the hinged door D from being opened by mounting the strike plate 1 on the lock member mounting portion 11.

As shown in FIG. 4, the strike plate 1 forms a square hole 12 for receiving a latch bolt and an elongated screw hole 13 in addition to the lock member mounting portion 11, and further engages in the lock member mounting portion 11. The stop portion 11a is formed.
Here, by forming the screw holes 13 in the shape of elongated holes, it corresponds to various existing strike plates 4, specifically, after removing the existing strike plates 4, the screw holes 13 remain in the door frame F. The strike plate 1 can be fixed by the screws 3 using the screw holes.
As a result, even if it is installed later, it can be removed without leaving a mounting mark, and the original state can be easily restored.

Then, the strike plate 1 is fixed to the door frame F with screws 3 after removing the existing strike plate 4, and as shown in FIG. 6, it is overlapped with the strike plate 4 from above the existing strike plate 4. Can also be fixed.
As the screw 3 used for fixing the strike plate 1 to the door frame F, it is desirable to use a flat head screw having a low exposed height of the head.
As a result, it is possible to prevent the existing strike plate 4 that has been removed from being lost.

As shown in FIG. 5, the lock member 2 is attached to the lock member mounting portion 11 of the strike plate 1 to prevent the hinged door D from coming into contact with the lock member 2 and opening the hinged door D. Strike In addition to the groove-shaped mounting portion 21 to be mounted on the lock member mounting portion 11 of the plate 1, a rotation operation portion 22 used for removing the lock member 2 from the lock member mounting portion 11 of the strike plate 1 is formed. ..
Here, as shown in FIG. 3, the rotation operation unit 22 is locked against the urging force of the spring 21c by the eccentric pin 22a provided in the rotation operation unit 22 by rotating the rotation operation unit 22. The cam mechanism piece 21b forming the claw 21a is swung, and the locking claw disposed in the groove of the mounting portion 21 of the lock member 2 with respect to the locking portion 11a formed on the lock member mounting portion 11 of the strike plate 1. It is configured so that the lock member 2 can be removed from the lock member mounting portion 11 of the strike plate 1 by releasing the locked state of the 21a.

Since the strike plate 1 and the lock member 2 are made of a magnetic material, the lock member 2 removed from the lock member mounting portion 11 of the strike plate 1 is, for example, a magnet such as a button-shaped magnet or a magnet sheet (not shown). ) Can be temporarily held on the back side of the strike plate 1.
As a result, it is possible to secure a storage place for the lock member 2 when it is not attached and prevent the lock member 2 from being lost.

The auxiliary lock of the present invention has been described above based on the embodiment, but the present invention is not limited to the configuration described in the above embodiment, and the configuration is appropriately changed as long as the purpose is not deviated. be able to.

Even if the auxiliary lock of the present invention is installed afterwards, it can be removed without leaving any traces of installation, and it can also be applied to rental properties that are obliged to restore the original state. Therefore, the hinged door is locked from the indoor side. As a mechanism for enabling this, it can be widely used regardless of whether it is an existing one or a new one.

1 Strike plate 11 Lock member mounting part 11a Locking part 12 Square hole 13 Screw hole 2 Lock member 21 Mounting part 21a Locking claw 21b Cam mechanism piece 21c Spring 22 Rotation operation part 22a Eccentric pin 3 Screw (flat head screw)
4 Strike plate (existing)
D hinged door (door)
F door frame

Claims (4)

An auxiliary lock for locking an inward-opening hinged door from the indoor side, a strike plate formed with a lock member mounting portion protruding in the indoor direction, which is fixed to the door frame by a screw, and a lock member of the strike plate. An auxiliary lock characterized by being composed of a lock member that prevents the hinged door from being opened by attaching it to the mounting part. The auxiliary lock according to claim 1, wherein an elongated screw hole is formed in the strike plate. The auxiliary lock according to claim 1 or 2, wherein the strike plate is stacked and fixed on an existing strike plate. The auxiliary lock according to claim 1, 2 or 3, wherein the lock member is temporarily held on the back surface side of the strike plate via a magnet.

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