JPH0547246Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a crime prevention aid that is attached to the inside of a building door and prevents the door from being opened more than necessary.

[Conventional technology]

Conventionally, chains have been mainly used as this type of auxiliary tool, with one end fixed to a wall or the like, and the other end slidably engaged with a metal fitting having a long groove attached to a door.

[Problem that the invention attempts to solve]

Although this conventional method can prevent the door from being opened more than necessary, the assisting tool cannot be released unless the door is closed. Therefore, if an emergency situation such as an accident or illness occurs in a room where an auxiliary device is used, even if the main door lock is unlocked with a master key etc., the auxiliary device It was extremely difficult to release it from the outside, and it was impossible to enter the room without destroying the auxiliary equipment. In particular, for safety reasons in homes for the elderly living alone, nursing homes, etc.
Because assistive devices are often used and the probability of an emergency occurring is high, the use of assistive devices can lead to the worst situation.

Therefore, the present invention aims to provide an auxiliary device that can be released from the outside as necessary in the event of an emergency.

[Means for solving problems]

The present invention consists of a locking plate whose rear end is attached to a wall surface on the indoor side so that it can rotate freely in the horizontal direction, an oblong hole formed in the front part of the locking plate that penetrates in the horizontal direction, and a hole at the back of the oblong hole. A locking body with a bending hole connected to the end, a hook body inserted into the bending hole at the tip, and a rear end rotatably attached to the inside of the door, and a locking body that can be rotated. It consists of an operating device such as a solenoid to be operated.

[Effect]

Under normal conditions, the hook body is positioned in the vertical direction, and the locking plate is rotated with the door closed to insert the hook body into the bent hole. When the door is opened, the locking body slides along the horizontally long hole, and the locking plate also rotates with the door, and when the locking body reaches the tip of the horizontally long hole, the locking plate stops the door from opening. Therefore, it is blocked and further release is impossible. To close the door, the locking body slides through the horizontally long hole, and the locking plate is pressed by the door and rotates.When the locking plate is rotated toward the room with the door closed, the hook body is bent. When it comes out of the hole, the connection between the locking body and the horizontally elongated hole is released, and the door is freely opened. Next, to release the connection between the locking plate and the locking body from outside the door, operate a switch in the control room or the like to activate an actuating device such as a solenoid, and turn the hook body laterally along the horizontally long hole. make it move. Thereby, although the locking body slides through the horizontally long hole as the door is opened, the hook body slips out of the horizontally long hole, allowing the door to be opened freely. Then, the hook body, which has become horizontal, is rotated vertically to accommodate normal use, but rotation from the vertical direction to the horizontal direction can only be performed by an actuating device, and from the horizontal direction to the horizontal direction. Vertical rotation is performed after confirming that the actuating device is not activated.
Alternatively, it may be automatically restored by a spring or the like upon release of the actuating device.

〔Example〕

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a locking plate 3 whose rear end is pivoted to a wall surface 2 on the indoor side so as to be freely rotatable in the horizontal direction. Song 4 has been played. Reference numeral 5 denotes a horizontally elongated hole formed in the front part of the locking plate 1 and penetrating the locking plate 1 in the horizontal direction, and is formed over the bending piece 4. At the rear end of the horizontally elongated hole 5, an upwardly bent hole 6 is connected. ing. Reference numeral 7 denotes a locking body that projects horizontally on the indoor side of the door 8, and has a hook body 9 at its tip that is inserted into the bent hole 6, and its rear end is rotatably attached. There is. 1
0 is an actuating device such as a solenoid that rotates the hook body 9 in the horizontal direction along the horizontally long hole 5, and is actuated by operating a switch provided in, for example, a control room.

In the embodiment shown in the drawings, the locking plate 1 is attached to the wall on the indoor side, and the locking body 7 is attached to the door 8, but the locking plate 1 is attached to the door 8, and the locking body 7 is attached to the wall on the indoor side. etc., in which case the actuating device 1
0 is also arranged adjacent to the locking body 7. Further, the bent hole 6 only needs to be bent with respect to the horizontally elongated hole 5, and is not necessarily bent upward as in the embodiment.

[Effect of idea]

The present invention is constructed as described above, and when an emergency occurs indoors, the main lock on the door is unlocked using a master key, etc., and the door is unlocked from the outside by operating a switch in the control room. It is ideal as an auxiliary device for nursing homes, etc., where the probability of an emergency situation occurring is high, and auxiliary devices are often used for safety reasons.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a plan view, FIG. 2 is a front view, FIG. 3 is a side view, and FIG. 4 is a diagram showing a release state in an emergency. 1...Locking plate, 2...Wall surface, etc., 5...Horizontal hole,
6...Bending hole, 7...Locking body, 8...Door, 9
...Hook body, 10... Actuation device.

Claims (1)

[Scope of utility model registration request] A locking plate 1 whose rear end is attached to a wall surface 2 on the indoor side so as to be rotatable in the horizontal direction, a horizontally elongated hole 5 formed in the front part of the locking plate 1 and passing through in the horizontal direction;
The tip has a bending hole 6 connected to the rear end and a hook body 9 inserted into the bending hole 6, and the rear end is connected to the door 8.
A crime prevention aid consisting of a locking body 7 rotatably attached to the inside of the body, and an actuating device 10 such as a solenoid for rotating the locking body 7.