screen door

Abstract

While screen doors serve to prevent insects from entering and allow wind and light to pass through, there were concerns that they could be easily opened and closed from the outside, and that people could easily break through the mesh and gain entry. There were also concerns that they could not be used when it was raining because rain would get in. However, there were challenges with screen doors, as they come in many sizes and colors, and their usable thickness is limited. [Solution] To prevent people and rain from easily entering within the limited thickness of the screen door, the lattice is woven in a specific way, guiding the direction of warping when the lattice expands due to heat, and it is fixed to a support rod to prevent the screen door from being opened or closed. Even if the screen door itself is damaged, an alarm device installed inside the frame deters entry, and a perforated film prevents rain from entering, thus solving the problem.

Description

Technical Field

[0001] The present invention relates to a screen door to be attached to a frame for a sliding window frame attached to a building such as a house or a store.

Background Art

[0002] The invention relates to a screen door attached to a frame for a sliding window attached to a building, which has a function of preventing rain and intrusion of intruders.

Prior Art Documents

Non-Patent Documents

[0003] Jpn. Pat. Appln. KOKAI Publication No. 53-095550

Summary of the Invention

Problems to be Solved by the Invention

[0004] A screen door with a lattice or a louver attached thereto may interfere with a window or a shutter, etc., so there is a limit to the thickness that can be used for the attached lattice or the like. Even with a lattice made of a thin plate, it was necessary to increase the strength.

[0005] In addition, there was a problem that if the lattice or the louver warped due to thermal expansion or the like, it might interfere with a window or a shutter, etc.

[0006] In order to prevent the intrusion of intruders with a screen door with a lattice or a louver attached thereto, it was necessary to prevent the screen door from being easily opened from the outside.

[0007] However, even if it could be made difficult to open from the outside, the screen door itself made of aluminum has a limit in strength even with a lattice attached. Therefore, it is not difficult to break it if an intruder's tool or a strong force is applied. Even if an alarm device that reacts when vibrated or removed is attached, it is possible to break the net and insert a hand through a gap in the lattice or the like and destroy the device itself.

[0008] One method for preventing rain from entering is to attach louvers to screen doors. However, screen doors come in various sizes in terms of length and width, and each louver needs to be processed and installed to match these sizes, which presents challenges in terms of manufacturing time and cost. [Means for solving the problem]

[0009] To increase the strength of the lattice attached to the screen door, each vertical and horizontal lattice is interwoven with the others to create a woven structure, which is then secured to the screen door.

[0010] Regarding thermal expansion of the grid, some or all of the grid is pre-bent so that it will curve inward towards the screen door frame even when it expands due to heat, before being attached to the screen door frame.

[0011] To prevent the screen door from opening easily, insert a support rod into the window frame so that one side of the window cannot move, and fix it at about the middle height of the window. Secure this fixed support rod to the grille of the screen door. You may also use a lock or other means to prevent the support rod from being easily removed from the screen door. Alternatively, you may secure the support rod to the middle rail or frame of the screen door itself.

[0012] To prevent the alarm system from being easily damaged or removed, an alarm system that sounds an alarm when the screen door comes loose from the window frame or when it detects a large vibration will be embedded inside the screen door frame. There are no specific requirements regarding the embedding location or number of units.

[0013] To prevent rain from entering and to allow for easy adaptation to various sizes, a perforated film that is easy to cut like mesh and allows light and air to pass through is attached to the screen door. Alternatively, the holes can be made small to prevent insects from passing through, and only the film can be attached to the screen door without mesh. There are no specific requirements regarding the method of attaching the film to the screen door, the number of holes, the size of the holes, or the placement of the holes. [Effects of the Invention]

[0014] The following effects can be expected from this invention.

[0015] Because the grids and other elements are woven together, the interlocking of the grids eliminates the need to join each intersection individually. This increases the overall strength of the grid and the screen door, thereby enhancing the security of the screen door itself.

[0016] Furthermore, pre-bent lattices can be bent back in the direction they were originally curved, even if they expand due to heat. This prevents interference with windows and shutters, even if they expand due to heat.

[0017] The support rod, fixed to the window and window frame, and the screen door itself are secured, preventing the screen door from opening. Furthermore, even if someone tries to break the screen door by pulling it outwards or pushing it inwards, the fixed rod strengthens the screen door, preventing intruders from entering.

[0018] The alarm device, installed to deter the destruction of the screen door itself, is mounted on the inside of the screen door frame, making it difficult for vandals to easily destroy the alarm device. Furthermore, the alarm sounds when the screen door is destroyed and removed from the frame, or when subjected to significant vibration, thus deterring intruders.

[0019] By attaching a film with light-transmitting holes to a screen door, rain can only enter through the holes, thus preventing water from entering. In terms of manufacturing, because it is a thin film, it can be easily cut with a cutter, just like a screen, and processed into various sizes, significantly reducing labor and costs during production. [Brief explanation of the drawing]

[0020] [Figure 1] This is a front view showing the woven lattice of the present invention attached to a screen door. [Figure 2] This is a cross-sectional view of the lattice of the present invention attached to a screen door in a pre-curved state. [Figure 3] Front view of the state where the support bar and the screen door of the present invention are fixed. [Figure 4] Cross-sectional view taken from above of the state where the support bar and the screen door of the present invention are fixed. [Figure 5] Cross-sectional view taken from the side of the state where the grid of the support bar and the screen door of the present invention is fixed. [Figure 6] Cross-sectional view taken from above of the state where the alarm device of the present invention is incorporated. [Figure 7] Front view of the state where the net and the film of the present invention are attached to the screen door. [Figure 8] Cross-sectional view taken from above of the state where the net and the film of the present invention are attached to the screen door. [Figure 9] Front view of the state where only the net and the film of the present invention are attached to the screen door.

Mode for Carrying Out the Invention

[0021] The screen door according to the present invention will be described in detail below based on the drawings.

[0022] As shown in FIG. 1, 2. The grid is attached to the screen door in a vertically and horizontally woven manner.

[0023] As shown in FIG. 2, 2. The grid is attached to the screen door after being bent inward in advance.

[0024] As shown in FIGS. 3, 4, and FIG. 5, it is fixed to 2. the grid of the screen door and the like on the 6. support bar sandwiched between the window frames.

[0025] As shown in FIG. 6, 7. The alarm device is attached inside the frame of the screen door.

[0026] As shown in FIGS. 7, 8, and FIG. 9, 8. The perforated film is attached

Explanation of Reference Numerals

[0027] 1 Frame of the screen door 2 Grid 3 Net 4. Window screens 5 windows 6. Support rod 7 Alarm device 8 Perforated film

Claims

1. A screen door installed with vertical and horizontal bars woven together.

2. Screen door with pre-curved lattice installed

3. A screen door that can be secured by attaching it to a support rod that can be clamped onto the window frame.

4. A screen door with a built-in sound-generating device inside the frame.

5. A screen door fitted with a film that allows light to pass through.

Images