JPH0421414Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> This invention uses electrical remote control to
The present invention relates to a deadbolt strike device that allows the door deadbolt to be released and, if necessary, to disable electrical remote control.

<Conventional technology> (Figures 5 and 6) Conventionally, for example, on the main entrance door of an apartment complex,
An electrically operated receiver is used.

An example of such a device is that shown in Figures 5 and 6, in which the device is used to secure the latch bolt of a door lock.

Figure 5 shows the door closed using the conventional device, where 1 is the door, 2 is the latch bolt of the door lock embedded in door 1, and 3 is the wall to which the door is attached. be. Reference numeral 4 denotes a receiver for restraining the latch bolt 2, which is pivotally mounted in the casing 5 of the device around a shaft P, and is rotated counterclockwise in the figure by a spring 7. is assisted by. Reference numeral 8 denotes a rocking piece pivotally attached to the casing 5 by a shaft Q, and 9 is an electromagnet for attracting the rocking piece 8.

In the position shown in FIG. 5, the part 4' of the receiver 4 that restrains the latch bolt 2 is fixed by the swinging piece 8, and its rotation in the clockwise direction is prevented. The door cannot be opened unless it is moved back into the door 1 by operating a doorknob (not shown) or the like.

FIG. 6 shows a state in which the electromagnet 9 is excited and the swinging piece 8 is attracted. When such an operation is performed, the receiver 4 that has been stopped by the swinging piece 8 is released. Since the door 1 can be rotated clockwise, the door 1 can be avoided as shown in the figure even if the latch bolt 2 is not retracted.

As mentioned above, such a device is installed, for example, at the main entrance of an apartment complex. Residents of the house open the door with a key that can operate the latch bolt 2, and visitors can open the door by using an intercom etc. Then, the resident will be contacted and asked to open the door by operating a switch indoors.

<Problems that the invention aims to solve> Various controls necessary for modern life have come to be performed by electrical means for the convenience of residents, and safety equipment, security equipment, and various daily necessities have become Central control is becoming commonplace.

For example, systems that use electric lines to provide appropriate input signals from outside and automatically prepare the necessary environment before returning home have become quite popular.

However, such centralized electrical control is quite questionable from a crime prevention point of view, and because control is centralized for the reason of convenience, locking devices etc. can be easily disabled. There is a possibility that it will go away.

This is because even if the lock body is manufactured to have a high degree of security, the control is performed electrically, so if an appropriate intrusion circuit is discovered, the lock body will be damaged regardless of its function. This problem arises from the fact that unlocking is easy.

The purpose of this invention is to provide a dead bolt receiving seat device that solves these problems.
That is the purpose.

<Means for Solving the Problems> The problems described above are caused by the fact that the device is operated only electrically.

In order to eliminate this, the present invention uses a combination of electrically operated parts and purely physically operated parts, adding crime prevention safety to the conventional convenience. Successful.

Therefore, the latch bolt or dead bolt used in the present invention should be capable of protruding in two stages according to the user's operation.

Of these two stages of protrusion, electrical operation is possible at the first stage of protrusion, but when the protrusion increases to the second stage, physical fixation becomes effective and electrical operation is possible. Made it impossible to release dead bolts, etc. even with the addition of

<Function> According to the present invention, it is possible to achieve a dead bolt receiving seat device that cannot be opened by any electrical operation if the user so desires.

<Example> (Figs. 1 to 4) Specific examples according to the present invention will be explained with reference to conceptual explanatory diagrams of Figs. 1 to 4.

In the drawings, 10 is a casing having an opening 11, and 12 is an engagement piece pivotally attached to the casing 10 by a shaft 13.

The engagement piece 12 shown in FIG. 1 is pivotally connected to the casing 10 by a shaft 13, and an engagement arm 12a installed at one end thereof is curved to partially surround the dead bolt 14. The engaging arm 12a extends from the engaging piece 12 over the dead bolt 14, and its tip 12b ends slightly longer than a line connecting the center of the shaft 13 and the dead bolt 14.

Reference numeral 15 denotes a long hole formed in a part of the engagement piece 12, and a pin 18 installed in the plunger 17 of the solenoid coil 16 passes through the long hole 15. In the figure, 19 indicates the plunger 17 during normal operation.
This is a spring to maintain the protruding state.

FIG. 2 is an explanatory view of the structure shown in FIG. 1 from the front position, and numeral 20 in the figure is a seat installed in the direction in which the dead bolt 14 projects.

To explain the operation, FIG. 1 shows a state where the dead bolt 14 is stopped by the engaging arm 12a of the engaging piece 12, and the dead bolt 14 is stopped by the engaging arm 12a.
2a, and the door (not shown) is fixed.

For example, in an emergency, when it is necessary to open the door by remote control, the solenoid coil 16 is energized, the plunger 17 is attracted, and the pin 18 of the plunger 17 is moved upward in FIG. the engagement piece 12 at the end of the elongated hole 15.
The engaging piece 12 is rotated clockwise about the shaft 13 as shown in FIG. 3, and the tip 12b of the engaging arm 12a is removed from the line of movement of the dead bolt 14.

As a result, Deadbolt 1 was stopped.
4 is released, allowing the door it is attached to to be released.

When the operation is completed and the excitation of the solenoid coil 16 is removed, the plunger 17 and the engagement piece 12
returns to the position shown in FIG. When the dead bolt 14 is moved to close the door in this state, the dead bolt 14 pushes up the engagement arm 12a and its tip 1
2b and returns to the position shown in Figure 1.

When such an operation is required, the amount of protrusion of the dead bolt 14 is set to the first stage,
As shown in FIG. 2, the dead bolt 14 is
It has not reached 0.

Next, in order to disable remote control, the dead bolt 14 should be extended to the second stage, and its tip 14a should be thrust into the seat 20, as shown in FIG.

When the tip 14a of the dead bolt 14 enters the seat 20, even when the engaging piece 12 is rotated as shown in FIG.
Since the dead bolt 14 is fixed to the casing 10, the dead bolt cannot be released, and the door to which the dead bolt 14 is attached cannot be opened.

To disable this dead bolt 14,
It is necessary to operate the locking device with a key to move the dead bolt 14 back to a position where it does not engage with either the catch 20 or the engaging piece 12. The operation using this key is exactly the same as unlocking using a conventional key.

In order to simplify the explanation, the spring that urges the engagement piece 12, the positioning device that limits its rotation, etc. are not shown in FIGS. 1-4.

Further, in the illustrated example, a dead bolt having a circular cross section is shown, but the cross sectional shape of the dead bolt may be arbitrary.

<Effects> According to the present invention, it is possible to obtain a dead bolt receiving seat device which can be remotely controlled, but whose remote control can be easily disabled if necessary.

[Brief explanation of the drawing]

Figures 1 to 4 are conceptual explanatory diagrams of the present invention.
The figure is an internal explanatory diagram of the first stage locked state shown from the side position, Fig. 2 is an internal explanatory diagram of the one shown in Fig. 1 from the front position, and Fig. 3 shows the unlocked state of the one shown in Fig. 1. Internal explanatory diagram, FIG. 4 is a diagram similar to FIG. 2, and is an internal explanatory diagram showing the second stage of the locked state.
FIG. 5 is a sectional view of the conventional example in the locked state, and FIG. 6 is a sectional view of the conventional example in the unlocked state. 10...Casing, 11...Opening, 12...
...Engagement piece, 12a...Engagement arm, 12b...Tip,
13...Shaft, 14...Dead bolt, 15...Elongated hole, 16...Solenoid coil, 17...Plunger, 18...Pin, 19...Spring, 2
0...Ukeza.

Claims (1)

[Claims for Utility Model Registration] A dead bolt 14 that can protrude to the first and second stage positions; and the dead bolt 14 that protrudes to the first stage position.
The engagement piece 12 is comprised of an engagement piece 12 that restrains the movement of the bolt, and a seat 20 into which the tip of the dead bolt 14 protruding to the second stage position is recessed. and the engagement arm 12 of the engagement piece 12
a is extended over the dead bolt 14 in the locked position, and the tip 12b of the engaging arm 12a is
A pin 18 is located slightly extending from the line connecting the center of the shaft 13 and the dead bolt 14, and is installed in the plunger 17 of the solenoid coil 16.
is inserted into a long hole 15 bored in an engagement piece 12.