JPH0932393A - Door lock device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door lock device having excellent locking capacity while having the performance of a conventional arm lock. SOLUTION: The base end section of a stopper material 6 preventing sliding and movement along a hook 5 of an arm 3 when the arm 3 of an arm lock is engaged with the hook 5 is supported pivotally to the arm 3. When the arm 3 is engaged with the hook 5 under the state, in which a door is closed and the stopper material 6 is set into the arm 3, no door is opened because the arm 3 cannot be slid and moved along the hook 5. When the stopper material 6 is extracted from the inside of the arm 3, the stopper material 6 functions as a normal arm lock.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention is applicable to general houses, apartments,
The present invention relates to a door lock device used when locking an entrance door of a condominium, a hotel room, or the like.

[0002]

2. Description of the Related Art When the door is locked from the inside,
Conventionally, not only a device for locking by engaging a tenon provided on a side end surface of a door with a mortise hole on a wall surface, but also an arm lock as shown in FIG. The arm lock can be locked and unlocked very simply by rotating the arm 3 and engaging the hook 5, so that the arm lock can be used during daytime when the door 2 is frequently in and out. It is often locked only by itself.

In addition, when locking only with an arm lock,
Since the door 2 can be opened a little while keeping the locked state, in the case of a visitor, depending on the other party, the arm lock may not be unlocked and the door 2 may be opened a little and the customer may respond from the gap. In addition, during the hot and humid seasons such as summer, it is often the case that the door 2 is held slightly open to lock the door 2 for the purpose of improving ventilation in the room.

However, when only the arm lock is locked, the door can be opened a little from the outside, of course. Therefore, if a chain cutter or the like is inserted through the gap between the door and the wall, the arm lock is cut and unlocked. It has the drawback that it can be locked, there is a high risk of intrusion from the outside, and the locking ability is poor.

Therefore, in order to completely prevent invasion from the outside, not only the arm lock but also another locking device must be used together, so that there is a problem that locking and unlocking operations become very troublesome. .

Therefore, the structure is simple, the locking and unlocking operations are very easy, and the locked state can be maintained even when the door is slightly opened. There is a demand for a door lock device that has an excellent effect of preventing intrusion from the outside.

[0007]

The problem to be solved by the present invention is that it has a simple structure, can be easily locked and unlocked, and the door can be opened a little while it is locked. An object of the present invention is to provide a door lock device having excellent lockability while having arm lock performance.

[0008]

A door lock device according to the present invention has a base end portion of an arm rotatably pivotally supported on a door surface of an entrance / exit door of a general house, an apartment, etc. In an arm lock having a hook that engages with the arm on the wall surface, when the arm is engaged with the hook,
It is characterized in that a stopper mechanism that prevents the arm from sliding along the hook is detachably provided.

The stopper mechanism may be configured such that a base end portion of a stopper material having a predetermined length is pivotally supported by the arm.

Further, the stopper mechanism may be one in which a pin member is detachably inserted into a hole provided in the arm.

[0011]

In the door lock device of the present invention, since the stopper mechanism is provided so as to be disengageable, when the door is closed and the arm of the arm lock is engaged with the hook when the stopper mechanism is set, The arm is prevented from sliding along the hook. For this reason, even if only the arm lock is locked, the door is not opened at all.

If the stopper mechanism is such that the base end of a stopper member of a predetermined length is pivotally supported on the arm, the stopper member can be set and released by rotating the stopper member.

If the stopper mechanism is configured such that the pin member is inserted into the hole provided in the arm, the stopper mechanism can be set and released by attaching and detaching the pin member to and from the hole.

[0014]

Embodiments of the present invention will be described below with reference to the drawings.

1, 2 and 3 are partially cutaway perspective views showing an embodiment. As shown in FIG. 1, the door lock device 1 of the present embodiment pivotally supports a base end portion of an arm 3 on a surface of an entrance / exit door 2 and an arm 3 on a wall surface 4 of an entrance / exit where the door 2 is closed. In an arm lock with a hook 5 to engage,
A stopper member 6 is provided on the arm 3 as a stopper mechanism that prevents the arm 3 from sliding along the hook 5 when the arm 3 is engaged with the hook 5.

The stopper mechanism, as shown in FIG.
Since the base end portion of the stopper member 6 having a predetermined length is rotatably supported by the arm 3, the stopper member 6 is rotated about the shaft 7 to move the stopper member 6 to the arm 3. The engagement and disengagement can be done freely.

As shown in FIG. 2, the door 2 is closed and the stopper member 6 is folded inside the arm 3, and then the arm 3 is rotated about the support shaft 8 as in a general arm lock. When the hook 5 is engaged, it is locked as shown in FIG. In this state, the arm 3 cannot slide along the hook 5 due to the action of the stopper member 6, so that the door 2 is not opened at all and a completely locked state can be obtained.

As shown in FIG. 1, when the stopper member 6 is rotated around the shaft 7 and is protruded from the arm 3 while being locked, the door 2 can be opened a little, so that the conventional arm can be opened. It can be used in the same way as a lock. Further, when it is desired to unlock, it is sufficient to rotate the arm 3 to the door 3 side and bring it to the state shown in FIG. Therefore, the locking and unlocking operations are extremely easy.

FIG. 4 is a partially cutaway perspective view showing another embodiment. In this embodiment, the pin 9 is used as the stopper mechanism.
Is used. When the pin 9 is set in the hole on the proximal end side of the arm 3, the door 2 is closed and the arm 3 is engaged with the hook 5, the action of the pin 9 allows the arm 3 to slide along the hook 5. Since it is blocked, the door 2 is not opened at all and is in a completely locked state.

Next, when the pin 9 is set in the hole on the tip side of the arm 3, the stopper mechanism does not work, so that it can be used in the same manner as a conventional arm lock. Note that the pin 9 is locked to the arm 3 via the chain 10 in order to prevent the pin 9 from falling and being lost.

[0021]

【The invention's effect】

(A) Since the present invention is provided with the stopper mechanism for the arm lock, it has a simple structure, and locking and unlocking operations are extremely easy.

(B) The stopper mechanism surely prevents the arm from sliding along the hook when the arm of the arm lock is engaged with the hook, so that the door is not opened at all and the locking ability is excellent. ing.

(C) When the stopper mechanism is released from the arm lock, it can be used in the same way as the conventional arm lock, so that the door can be opened a little while it is in the locked state.
It has all the advantages of conventional arm locks.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view showing an embodiment.

FIG. 2 is a partially cutaway perspective view showing an embodiment.

FIG. 3 is a partially cutaway perspective view showing an embodiment.

FIG. 4 is a partially cutaway perspective view showing another embodiment.

FIG. 5 is a partially cutaway perspective view showing a conventional technique.

[Explanation of symbols]

 1 Door lock device 2 Door 3 Arm 4 Wall 5 Hook 6 Stopper material 7 Shaft 8 Spindle 9 Pin 10 Chain

Claims (3)

[Claims] 1. A hook for engaging the arm with a wall of a door that closes the door, wherein a base end portion of the arm is rotatably supported on a door surface of a door of an ordinary house or an apartment. In the arm lock, the door lock device is provided with a stopper mechanism that is disengageably provided to prevent the arm from sliding along the hook when the arm is engaged with the hook. 2. The door lock device according to claim 1, wherein the stopper mechanism has a base end portion of a stopper material having a predetermined length pivotally supported by the arm. 3. The door lock device according to claim 1, wherein the stopper mechanism is configured to detachably insert a pin member into a hole provided in the arm.