JP3096915U - Illegal intrusion prevention equipment - Google Patents

Abstract

[PROBLEMS] Even if unlocking can be performed by picking or double keying, an illegal intruder can be reliably prevented from the inside by setting a preventive device.
A two-piece preventive device (1a, 1b), which is formed in the shape of a semi-cylindrical plate, is attached to the small diameter of the inner knob of the outward opening door (7) between the crosspiece of the door and the knob so that the small diameter of the knob (4) is sandwiched from above and below. One of the components is set so as to hang on the projection 6 of the door receiver of the door frame 5.
[Selection] Fig. 2

Description

[0001]
[Technical field to which the invention belongs]
The purpose of the present invention is to prevent illegal intruders from picking, which has become a social problem, which has been increasing rapidly in recent years. Tool.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, as a device for preventing an unauthorized intruder from the inside, a device in which a bar chain member is attached to a side surface of a door chain or a door frame including a device built in a door knob is generally used.
[0003]
[Problems to be solved by the invention]
An object of the present invention is to provide a device that can surely prevent an illegal intruder from inside by setting a preventive device even if the unlocking can be performed by picking or double keying.
[0004]
The main components of the device according to the present invention can be made of aluminum, plastic or wood, and can be manufactured at low cost, and the installation and removal of the device can be extremely easily done without any work on existing doors etc. Features.
[0005]
[Means for Solving the Problems]
Attach two small plates on the inside knob of the outside opening door so that the small diameter of the knob is sandwiched from above and below. set.
[0006]
The two plates (prevention devices) are in the form of a single plate with the knob in the middle. After setting, the knob protrudes from the single plate, and the prevention device is fixed with the door bar and the knob. Since the door is integrated with the door, one end of the plate is hooked on the projecting portion of the door frame, thereby achieving the object.
[0007]
[Embodiment of the invention]
An embodiment of the invention will be described with reference to the drawings.
1 and 2, the members 1a and 1b may be made of any of aluminum, plastic, and wood. However, since the members of the door and the recess of the door knob need to be in close contact with each other, a thickness of about 14 mm is required.
[0008]
As for 2 connecting 1a and 1b, stainless steel having strong elasticity is desirable.
[0009]
As for 3 for fixing 1a and 1b, the part in contact with 1a is slightly narrowed by sheet metal working, and a shallow groove is cut in the inside to prevent detachment of 1a, and the front end is opened outward to facilitate mounting. Bend.
[0010]
In order to enhance the effect of preventing detachment, a shallow lateral groove is also formed in a portion in contact with 3 of 1a.
[0011]
[Effect of the invention]
According to the present invention, by setting the prevention tool on the outside opening inner knob, one end is hooked and fixed on the projection of the door frame, so even if picking or double keying, the door does not open and prevents illegal intruders can do.
[Brief description of the drawings]
FIG. 1 is a perspective view of the illegal intrusion prevention device of the present invention; FIG. 2 is a perspective view of the illegal intrusion prevention device shown in FIG. 1 set on a door;
[Explanation of symbols]
1a Kamaboko-shaped board 1b 〃
2 Strongly elastic stainless steel etc. 3 Metal plate 4 Door knob 5 Door frame 6 Door receiving projection 7 Door

Claims (1)

A device that sets the inner knob of the outer door to the small diameter of the knob, and aligns one of the two semi-cylindrical plates with the door receiving projection of the door frame. Cut in a semi-circle according to the size, cut the semi-circular cut part of the two plates, and put the small diameter in the middle so that the small diameter is engaged, sandwich it from above and below, and cut the two plates on the opposite side from the door frame. The edge is connected with stainless steel etc. instead of hinges, and the two plates sandwiching the small diameter of the knob from the top and bottom are kept in one plate shape to enhance the function as a preventive tool and at the same time, To facilitate attachment and detachment, two metal plates are attached to one of the upper and lower two plates at the position near the door frame so that the other plate is strongly sandwiched from both sides, and the door is subjected to strong vibration. So that the plate and the plate sandwiching it do not come off Insert a shallow horizontal groove-shaped non-slip notch on the inside of the plate and on the side of the plate that this plate contacts, and when setting this preventive tool, make it easier to align the upper and lower two plates. An illegal intrusion prevention device with a curved outside opening.

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