JP2024124279A - Security screen door system - Google Patents

Abstract

To solve the problem in terms of security when conventional screen doors were in use as they were not effective in preventing intruders from entering from the outside when the screen door was in use.SOLUTION: By fixing a screen door frame and a window frame with a unique fixing mechanism, the strength of the screen door frame itself can be increased when the screen door is in use, and the problem can be solved by making it impossible to remove the fixing by hand or with a tool.SELECTED DRAWING: Figure 2

Description

The present invention relates to a technology relating to the security of screen doors attached to buildings such as houses and stores.

The main purpose of the screens attached to the window frames of buildings is to prevent insects and other pests from entering from the outside and to allow air to flow in.
Therefore, when the screen door is in use, an intruder can easily enter from outside.

The purpose of screen doors is to prevent insects and other pests from entering and to allow air in, but when they are in use, there is a problem in that intruders can easily get in by opening or tearing the screen.
Even if a locking device is installed, the screen can be easily torn and the screen frame itself is not strong enough to be easily destroyed. Even if wire mesh or bars are installed on the screen frame, there are gaps that allow air to pass through, so it is possible to insert a hand or tool through them to unlock the screen.
The window crescent was designed to lock the window, so it could not be used to lock the screen door.
When a movable fixing device is attached to a screen door frame, there is a problem that the fixing device may get caught on the window frame or scratch the window when opening or closing the window or screen door.

In order to increase the crime prevention performance when using a screen door, an intruder's hand or tool can enter but not his body, and a unique locking device with a PIN or key can be combined. The intruder prevention plate can be either horizontal or vertical.

When the screen is in use, the window frame and the screen frame are connected and fixed to prevent the screen frame itself from being destroyed by an intruder. The fixing is made regardless of whether the window is facing inside or outside.

By providing a unique combination system such as a dial or push code or key system to a screen door that is strong and connected to the window frame, the system cannot be easily unlocked even if a hand or tool is inserted through the gaps in the screen door that has wire mesh or bars attached. There is no distinction between integrated and add-on dial and key locking mechanisms.

In order to enable the screen door to be locked with the crescent for locking the window, a fixing mechanism attached to the screen door is fixed to the window frame and sandwiched between the crescent and the window frame, so that the screen door can be fixed with the conventional crescent.

In addition, the long part of the crescent is designed to hook onto a clasp attached to the screen door, allowing it to be fixed in place.

The fixing mechanism attached to the screen door is fixed to the screen side by a spring or a magnet, etc., except when the screen door is fixed.

According to the present invention, by combining an intrusion prevention plate and a unique locking device with a screen door, even if someone tries to break the screen and unlock the locking device through a gap in the intrusion prevention plate using their hands or a tool, they cannot open the screen door unless they match the secret number or key, and the intrusion prevention plate makes it difficult for someone to intrude.

Even if an intruder tries to destroy the screen door itself, the screen door frame is connected and fixed to the window frame, so that the screen door frame cannot be easily destroyed.

In addition, by combining a combination or key-type locking device with the device that connects and fixes the screen frame to the window frame, even if an intruder is able to get his or her hand or tool through gaps in the wire mesh or bars, he or she will not be able to unlock it without the combination or key.

By utilizing the crescents attached to windows, it becomes possible to provide an inexpensive screen door locking system.

The fixing mechanism attached to the screen door is fixed in a fixed position on the screen side when not in use, so it will not get caught when opening or closing the screen door or window, and there is no need to worry about scratching the window.

FIG. 2 is a front view of the window frame of the present invention. 1 is a view of the screen door of the present invention with a fixing mechanism attached, viewed from the side of the window frame. FIG. 3 is a view of the fixing mechanism of FIG. 2 in a fixed state; 13 is a diagram showing the fixing mechanism of the present invention locked with a dial-type locking mechanism. This is a diagram showing how the crescent of the present invention can be used to lock the fixing mechanism from the screen door. This is a diagram showing a screen door being locked with the crescent of the present invention. This is a diagram of a crescent that can also be used to fix a screen door of the present invention. This is a diagram showing a screen door being fixed with the crescent of the present invention. FIG. 2 is a top view of the fixing mechanism A of the present invention when stored.

The security screen system according to the present invention will be described in detail below with reference to the drawings.

As shown in FIG. 1, a fixing mechanism A is attached to one screen door, which can fix two windows to the screen door.
As shown in Figure 2, the fixing mechanism A and the fixing mechanism B that can be fixed to the window frame are attached. When fixing the screen to the window, the fixing mechanism A is bent as shown in Figure 3 and fitted into the protruding part of the fixing mechanism B to fix it.
The fixing mechanism A, which is fixed to the fixing mechanism B, cannot be removed from the fixing mechanism B by a mechanism that allows it to be moved up and down by matching a secret code, as shown in Fig. 4, so that it cannot be easily unlocked even if a hand or tool reaches from the outside. The method of unlocking the fixing mechanism B does not distinguish between secret codes or keys, and the method of preventing the fixing mechanism A from being removed from the fixing mechanism B is not specified, such as vertical sliding or rotation. 8 Fixing mechanism B may be installed on the indoor side of the window frame 5.
As shown in FIG. 9, the movable part of the fixing mechanism A attached to the screen door is fixed to the screen side 9 of the screen door so that the fixing mechanism A does not get caught when the screen door or window is moved.

When using the conventional 4-crest window to secure a screen door, the fixing mechanism A attached to the screen door is bent toward the interior side of the window frame to which the crescent is attached, and fitted into the hook 11 of the window frame, as shown in Figure 5. By moving the crescent as shown in Figure 6, the fixing mechanism A is sandwiched between the window frame and the crescent, so that the fixing mechanism A will not come off.
In addition, by hooking the screen door onto the long part of the crescent as shown in Figure 7, as shown in Figure 8, it is possible to secure the window and the screen door in place.

1 Screen door 2 Window 3 Fixing mechanism A
4 Crescent 5 Indoor window frame 6 Outdoor window frame 7 Screen frame 8 Fixing mechanism B
9 Net 10 Dial locking mechanism 11 Hook 12 Intrusion prevention plate

Claims (5)

A screen door that combines an intrusion prevention plate and a unique lock to increase security when in use. A structure that connects and fixes the screen door frame to the window frame when locking the screen door A method of connecting and locking a fixed screen frame and a window frame, by providing a unique locking mechanism such as a PIN code system or a key insertion system, so that an intruder cannot easily unlock the door even by using their hands or tools. A method for locking a fixed screen frame and a window frame using a conventional window crescent structure The fixing mechanism that secures the screen door frame to the window frame is designed to prevent the screen door or window from getting caught when opening or closing.

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