Insect-proof screen door and screen door device using the same

Abstract

To provide an insect screen door that is simple in structure, compact and lightweight, and can be easily attached to and removed from a screen door mounting frame, and to provide a screen door device using the insect screen door.SOLUTION: Hollow tapes 22a and 22b are attached to four sides of a rectangular net 21, elastic wire strands 23b made of thin metal wires are inserted into the hollow tapes 22b on the short side of the net 21, elastic wire strands 23a made of thick metal wires are inserted into the hollow tapes 22a on the long side. Two types of L-shaped corner components 24, 27 are removably attached to four corner portions of the net 21 so that the same type of corner components are arranged in diagonal positions, and ends of the elastic wire strands 23a and 23b, which are orthogonal to each other, are held in place.SELECTED DRAWING: Figure 8

Description

[Technical field]

[0001] The present invention relates to an insect screen that can be detachably attached to a screen mounting frame provided at an opening in a building, and to a screen device formed by attaching the insect screen to the screen mounting frame. [Background technology]

[0002] 2. Description of the Related Art Insect screen doors (screen doors) that can be detachably attached to a mounting frame provided at an opening in a building are known, as disclosed in Patent Document 1, for example. The screen door disclosed in Patent Document 1 has a mesh material stretched across a frame-shaped frame formed by combining a pair of vertical frames and a pair of horizontal frames, and part of the horizontal frames is made of an elastic material to make it bendable.When this screen door is to be attached to the mounting frame of a building opening, the horizontal frames are bent to narrow the width of the screen door, and in this state the screen door is inserted into the mounting frame from the top or bottom end.The bending of the horizontal frames is then released and the vertical and horizontal frames are engaged with the mounting frame, allowing the screen door to be attached to the mounting frame.

[0003] However, because the frame along which the mesh material is stretched is made up of a vertical frame made of hollow channel material and a horizontal frame made of rubber material and hollow corner blocks connected together, the screen door has the disadvantages of being complex in structure and heavy in weight, and it is also difficult to attach and remove it from the mounting frame. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 6031135 Summary of the Invention [Problem to be solved by the invention]

[0005] The technical object of the present invention is to provide an insect screen door that is simple in structure, small, lightweight, and can be easily attached to and detached from a screen door mounting frame, and a screen door device using said insect screen door. [Means for solving the problem]

[0006] In order to solve the above technical problems, the insect screen of the present invention is an insect screen that can be easily attached and detached to a screen mounting frame of a building opening, and is characterized by having a rectangular, flexible net having left and right vertical sides and top and bottom horizontal sides, flexible hollow tapes attached to the left and right vertical sides and top and bottom horizontal sides of the net, elastic wires attached individually to the left and right vertical sides and top and bottom horizontal sides of the net by being inserted into the hollow tapes to keep the net rectangular, and corner parts attached to the four corners of the net to prevent the elastic wires from falling off.

[0007] In the insect screen, preferably, the rigidity of the elastic wires attached to the left and right vertical sides of the net is different from the rigidity of the elastic wires attached to the top and bottom horizontal sides of the net. In particular, when the lengths of the left and right vertical sides of the net are different from the lengths of the top and bottom horizontal sides, it is more preferable that the rigidity of the elastic wires attached to the shorter side is smaller than the rigidity of the elastic wires attached to the longer side. In this case, the wire diameter of the elastic wires attached to the shorter side may be smaller than the wire diameter of the elastic wires attached to the longer side.

[0008] Furthermore, in the insect screen, preferably, the corner parts are harder than the net and the hollow tape, and are attached so as to span the adjacent vertical and horizontal sides of the net, and have a vertical arm portion extending along the vertical side, a horizontal arm portion extending along the horizontal side, and a central portion located between these vertical and horizontal arm portions, and the vertical arm portion has a vertical slit into which the hollow tape attached to the vertical side fits together with the elastic wire, the horizontal arm portion has a horizontal slit into which the hollow tape attached to the horizontal side fits together with the elastic wire, and the central portion has abutment portions against which the ends of the elastic wires attached to the vertical and horizontal sides abut, respectively.

[0009] In this case, more preferably, the four corners The corner parts are attached to Among them, at least the central portions of the two corner parts located diagonally opposite to the net have a cover that can be opened and closed, and the abutment part is formed on the cover. By doing so, when the cover is opened, the ends of the hollow tape attached to the vertical side and horizontal side are exposed, making it possible to insert and remove the elastic wire into and from the hollow tape. In the insect screen door, preferably, the net and hollow tape are made of fiber, the elastic wire is made of metal, and the corner parts are made of synthetic resin.

[0010] Furthermore, in order to solve the above-mentioned technical problems, the screen device of the present invention is a screen device comprising an insect screen attached to a screen mounting frame which is fixedly attached to an opening in a building, and the screen mounting frame has a series of grooves opening onto a rectangular inner circumference, and the outer periphery of the insect screen, including the elastic wires and corner parts, is fitted into the grooves. Effect of the Invention

[0011] As described above, according to the present invention, it is possible to provide an insect screen that is simple in structure, small, lightweight, and can be easily attached to and removed from a screen mounting frame, and a screen device using this insect screen. [Brief description of the drawings]

[0012] [Figure 1] 1 is a vertical cross-sectional view of an insect screen according to the present invention attached to a screen mounting frame of an opening in a building. [Diagram 2] FIG. 2 is a cross-sectional view of FIG. [Diagram 3] 1 is a front view of an insect screen according to the present invention. [Figure 4] 4 is an enlarged cross-sectional view of a main portion taken along line IV-IV in FIG. 3. [Diagram 5] 4 is an enlarged cross-sectional view of a main part taken along line VV in FIG. 3. [Figure 6] 4 is an enlarged cross-sectional view of a main portion taken along the line of a first corner part in FIG. 3. [Figure 7] 4 is an enlarged perspective view of a main portion of FIG. 3 at a position of a second corner part. FIG. [Figure 8] 8 is an enlarged perspective view of a main portion of the second corner part of FIG. 7 with a cover removed. FIG. [Figure 9] 1 is an enlarged perspective view of a main portion showing a state before corner parts are attached to the corners of the net to which hollow tapes are attached. FIG. [Figure 10] FIG. 13 is an enlarged perspective view of a main portion showing a state in which corner parts are attached to the corners of the net. [Figure 11] This is a front view of the insect screen, showing the state before corner parts are attached to the four corners and the elastic wire is inserted into the hollow tape. [Figure 12] FIG. 2 is an enlarged perspective view of a main portion showing a state before an elastic wire is inserted inside the hollow tape. [Figure 13] This is a front view illustrating how to attach an insect repellent screen to a screen mounting frame of a building opening. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] 1 and 2 show an example of a screen door device 1 in which an insect screen door 2 according to the present invention is attached in a removable manner in a fixed manner to a screen door mounting frame 3 provided at an opening W of a building.

[0014] The building opening W is configured as a sliding window, and a paper screen 5 attached to an aluminum alloy sash 4 is pushed outward by operating a handle (not shown) to open it, and the screen mounting frame 3 is attached by frame fixing screws 3a to a mounting part 6 formed inside the room from the sash 4. However, the location where the insect screen 2 is attached is not limited to such a sliding window, and it can also be attached to various types of windows that open and close the paper screen by operating a handle, such as casement windows and projection windows.

[0015] The screen mounting frame 3 is formed into a rectangle by combining left and right vertical rods 31, 31 with U-shaped cross sections and upper and lower horizontal rods 32, 32, and the insect screen 2 is attached to the screen mounting frame 3 by fitting the left and right vertical sides and the upper and lower horizontal sides of the insect screen 2 into the grooves 31a, 32a formed in the left and right vertical rods 31, 31 and the upper and lower horizontal rods 32, 32, respectively. In other words, the screen device 1 is formed by attaching the insect screen 2 to the screen mounting frame 3 by fitting the outer periphery of the insect screen 2 into a series of grooves 31a, 32a that open into the rectangular inner periphery of the screen mounting frame 3. In the following description, "up and down" and "left and right" refer to the directions when looking at the building opening W from inside the room, and "front" refers to the outside side and "rear" refers to the inside side.

[0016] As shown in Figures 3 to 5, the insect screen 2 comprises a rectangular, flexible net 21 having left and right vertical sides and top and bottom horizontal sides, flexible hollow tapes 22 attached to the left and right vertical sides and top and bottom horizontal sides of the net 21, four elastic wires 23 attached individually along the left and right vertical sides and top and bottom horizontal sides of the net by being inserted into the hollow tapes 22 to keep the net 21 rectangular, and two types of corner parts 24, 27 attached to the four corners of the net, respectively, to prevent the elastic wires 23 from falling off.

[0017] The net 21 can be made of fibers such as chemical fibers and metal fibers, but is preferably made of chemical fibers such as polyester, polypropylene, and glass fiber, similar to the nets in ordinary screen doors. In the illustrated example, the length of the vertical direction (up-down direction) of the net 21 is longer than the length of the horizontal direction (left-right direction). In other words, the length of the vertical side of the net 21 is longer than the length of the horizontal side.

[0018] The hollow tape 22 is formed into a hollow shape with both longitudinal ends open by folding a fiber cloth tape in two and attaching it to the left and right vertical sides and the top and bottom horizontal sides of the net 21. However, a tape 22 formed into a hollow shape in advance may be attached to the vertical and horizontal sides. In this case, it is important that the hollow tape 22 is attached continuously over the entire length of the vertical and horizontal sides. Methods for attaching the hollow tape 22 to the vertical and horizontal sides include thread attachment or adhesive bonding.

[0019] Any cloth tape that can be used for an insect screen door may be used as the cloth tape forming the hollow tape 22, but it is preferable to use a bias tape cut diagonally to the grain of the fabric. In this way, since the bias tape is stretchable, the vertical and horizontal sides of the insect screen door 2 can be smoothly curved when the insect screen door 2 is attached to and detached from the screen door mounting frame 3.

[0020] In the following description, the hollow tapes 22 attached to the left and right vertical sides of the net 21 will be referred to as "vertical hollow tapes 22a," and the hollow tapes 22 attached to the top and bottom horizontal sides will be referred to as "horizontal hollow tapes 22b."

[0021] The elastic wire 23 is formed in a straight line from a metal wire, such as a piano wire, that has excellent rigidity and springiness against bending, and has such elasticity that even if it is bent by the application of force, it will immediately return to its original straight shape when the force is removed.

[0022] The elastic wires 23b attached along the upper and lower horizontal sides are formed with a smaller wire diameter than the elastic wires 23a attached along the left and right vertical sides. This is because by making the rigidity of the elastic wires 23b attached along the shorter horizontal sides smaller than the rigidity of the elastic wires 23a attached along the longer vertical sides, it becomes easier to bend the horizontal sides when attaching and detaching the insect screen 2 to the screen mounting frame 3. However, it is also possible to make the wire diameters of the elastic wires 23a, 23b attached along the vertical and horizontal sides the same, and to use an elastic wire 23b attached along the horizontal side that has a smaller rigidity.

[0023] In the following description, the elastic wires 23 attached along the left and right vertical sides of the net 21 will be referred to as "vertical elastic wires 23a," and the elastic wires 23 attached along the top and bottom horizontal sides will be referred to as "horizontal elastic wires 23b."

[0024] Here, the length of the longitudinal elastic filaments 23a is formed to be equal to or slightly longer than the length of the longitudinal hollow tape 22a (i.e., the length of the longitudinal side of the net 21), so that the upper and lower ends of the longitudinal elastic filaments 23a can easily protrude from the upper and lower ends of the longitudinal hollow tape 22a. Similarly, the length of the transverse elastic filaments 23b is formed to be equal to or slightly longer than the length of the transverse hollow tape 22b (i.e., the length of the transverse side of the net 21), so that the left and right ends of the transverse elastic filaments 23b can easily protrude from the left and right ends of the transverse hollow tape 22b. By doing so, not only can the entire net 21 be kept in a rectangular extended state, but also, as described later, when disassembling the insect screen 1 for disposal, the longitudinal and transverse elastic filaments 23 can be easily removed from the longitudinal and transverse hollow tape 22, so that the separation work is also easy.

[0025] Furthermore, the corner parts 24, 27 are made of a synthetic resin material that is harder than the net 21 and the hollow tape 22, and a total of four of them are attached to the four corners of the net 21 so as to straddle adjacent vertical and horizontal sides. Of these, the two first corner parts 24 attached at diagonal positions at the upper right and lower left of the net 21 have the same configuration, and the two second corner parts 27 attached at diagonal positions at the upper left and lower right of the net have the same configuration, but the configurations of the first corner parts 24 and the second corner parts 27 are different from each other.

[0026] First, we will explain the configuration of the first corner part 24. As is clear from Figures 3, 4 and 6, this first corner part 24 has a vertical arm part 25 extending along the vertical side of the net, a horizontal arm part 26 extending along the horizontal side, and a central part 24a located between the vertical arm part 25 and the horizontal arm part 26.

[0027] A vertical slit 25a is formed in the vertical arm portion 25, into which the hollow tape 22a attached to the vertical side portion fits together with the elastic filaments 23a inserted into the hollow tape 22a. The vertical slit 25a has a narrow portion 25b with a narrow gap into which the portion of the hollow tape 22a into which the elastic filaments 23a are not inserted fits, and a wide portion 25c with a wide gap into which the portion of the hollow tape 22a into which the elastic filaments 23a are inserted fits. The cross-sectional shape of the wide portion 25c is a round hole or a square hole.

[0028] Similarly, the horizontal arm portion 26 is also formed with a horizontal slit 26a into which the hollow tape 22b attached to the horizontal side fits together with the elastic filaments 23b inserted into the hollow tape 22b, and this horizontal slit 26a also has a narrow portion 26b with a narrow spacing into which the portion of the hollow tape 22b into which the elastic filaments 23b are not inserted fits, and a wide portion 26c with a wide spacing into which the portion of the hollow tape 22b into which the elastic filaments 23b are inserted fits. The cross-sectional shape of the wide portion 26c is also round or square, but the spacing of the wide portion 26c is narrower than the spacing of the wide portion 25c formed in the vertical arm portion 25.

[0029] Then, the vertical elastic wires 23a fit into the wide portions 25c of the vertical slits 25a in the vertical arm portion 25, and the horizontal elastic wires 23b fit into the wide portions 26c of the horizontal slits 26a in the horizontal arm portion 26, so that the first corner part 24 is locked by these elastic wires 23 and cannot be displaced in the up-down and left-right directions, and as a result, is fixedly attached to the net 21. Therefore, the first corner part 24 will not fall off the net 21 even if it is not fixed to the net 21 by means such as adhesion. However, the first corner part 24 may be fixed to the net 21 by means such as adhesion.

[0030] As shown in FIG. 6, the central portion 24a is provided with vertical line abutment portions 24b that abut the ends of the elastic wires 23a attached along the vertical sides of the net 21, and horizontal line abutment portions 24c that abut the ends of the elastic wires 23b attached along the horizontal sides of the net 21, which are formed in different directions by 90 degrees, and these vertical line abutment portions 24b and horizontal line abutment portions 24c prevent the elastic wires 23 from falling off.

[0031] On the other hand, as is clear from Figures 3 to 5, 7 and 8, the second corner part 27 has a vertical arm part 28 extending along the vertical side of the net 21, a horizontal arm part 29 extending along the horizontal side, and a central part 27a located between the vertical arm part 28 and the horizontal arm part 29. A vertical slit 28a is formed in the vertical arm part 28, and a horizontal slit 29a is formed in the horizontal arm part 29, and the configuration is basically the same as that of the first corner part 24. However, it differs from the first corner part 24 in that the central part 27a can be opened and closed by a cover 27b, and that the cover 27b has vertical line abutment parts and horizontal line abutment parts (not shown) similar to those of the first corner part 24.

[0032] That is, the cover 27b covering the back surface (surface facing the interior) of the central portion 27a of the second corner part 27 is detachably attached to the central portion 27a of the second corner part 27 by a cover attachment screw 27d inserted into a through hole 27c from the front surface (surface facing the exterior) of the central portion 27a. The cover 27b is substantially L-shaped and spans a part of the vertical arm portion 28 and a part of the horizontal arm portion 29. When the cover 27b is removed, the end of the vertical slit 28a formed in the vertical arm portion 28 and the end of the horizontal slit 29a formed in the horizontal arm portion 29 are each exposed in the central portion 27a. The inner surface of the cover 27b is formed with the vertical line abutment portion and the horizontal line abutment portion (not shown), as well as a screw hole 27e for removably fixing the cover 27b to the central portion 27a by screwing in a cover mounting screw 27d inserted into the through hole 27c.

[0033] The reason why the two diagonally opposite second corner parts 27 out of the four corner parts 24, 27 are made openable and closable with covers 27b is to make it easier to attach the elastic wires 23 along the left and right vertical sides and the top and bottom horizontal sides of the net 21 when assembling the insect screen 2. Therefore, a method of assembling the insect screen 2 will be described below.

[0034] First, as shown in Figures 9 and 10, the first corner part 24 and the second corner part 27 with the cover 27b removed are attached to the four corners of the net 21 with the hollow tape 22 attached to each vertical side and horizontal side. As shown representatively in Figure 10 for the second corner part 27, the attachment is performed by fitting the hollow tape 22 (22a) on the vertical side of the net 21 into the vertical slit 28a of the vertical arm part 28 and fitting the hollow tape 22 (22b) on the horizontal side of the net 21 into the horizontal slit 29a of the horizontal arm part 29. The same applies to the first corner part 24. At this time, the elastic wire 23 is not inserted into the hollow tape 22.

[0035] 11 and 12, the longitudinal elastic wires 23a are inserted into the vertical hollow tapes 22a attached to the vertical sides of the net 21, respectively, from the positions of the two second corner parts 27, and the transverse elastic wires 23b are inserted into the horizontal hollow tapes 22b attached to the horizontal sides of the net 21. At this time, the longitudinal elastic wires 23a are inserted into the positions where their tips abut against the longitudinal line abutment parts 24b (see FIG. 6) of the first corner part 24 in the insertion direction of the longitudinal elastic wires 23a, and the transverse elastic wires 23b are inserted into the positions where their tips abut against the transverse line abutment parts 24c (see FIG. 6) of the first corner part 24 in the insertion direction of the transverse elastic wires 23b.

[0036] Next, the covers 27b are attached to the two second corner parts 27 with the cover mounting screws 27d. Then, the vertical line abutment parts (not shown) of the cover 27b abut the ends of the vertical elastic wires 23a and the horizontal line abutment parts (not shown) abut the ends of the horizontal elastic wires 23b, preventing the vertical elastic wires 23a and the horizontal elastic wires 23b from falling off. This completes the assembly of the insect screen door 2.

[0037] When disassembling the insect screen 2 for maintenance, disposal, etc., the assembly steps can be reversed. When the cover 27b of the second corner part 27 is opened, the ends of the hollow tape 22 attached to the vertical and horizontal sides are exposed, making it possible to insert and remove the elastic wire 23 into and from the hollow tape 22. Therefore, when disposing of the insect screen 2, the fiber net 21 and hollow tape 22, the synthetic resin corner parts 24, 27, and the metallic elastic wire 23 can be easily separated, facilitating the sorting process.

[0038] Next, when assembling the screen device 1 by attaching the insect screen 2 having the above-mentioned configuration to the screen mounting frame 3 of the building opening W, for example, as shown in Fig. 13, the insect screen 2 is compressed in the vertical and horizontal directions to bend the vertical elastic wires 23a attached along the vertical sides of the net 21 inward, and the horizontal elastic wires 23b attached along the horizontal sides inward. This causes the net 21 to bend in the vertical and horizontal directions, thereby reducing the vertical and horizontal dimensions of the insect screen 2. At this time, in this embodiment, the wire diameter of the horizontal elastic wires 23b is made smaller than the wire diameter of the vertical elastic wires 23a so that the bending rigidity of the shorter horizontal elastic wires 23b is smaller than the bending rigidity of the longer vertical elastic wires 23a, so that the dimensions of the insect screen 2 can be smoothly reduced in the horizontal direction as well as in the vertical direction.

[0039] For example, the vertical arm portions 25, 28 of the first corner part 24 and the second corner part 27 attached to both end corners of one vertical side of the net 21 are fitted into the groove 31a of one vertical frame rod 31 from the inner periphery side of the screen door mounting frame 3, and the horizontal arm portions 26, 29 of the first corner part 24 and the second corner part 27 attached to both end corners of one horizontal side of the net 21 are fitted into the groove 32a of one horizontal frame rod 32 from the inner periphery side of the screen door mounting frame 3.

[0040] Furthermore, while releasing the vertical and horizontal compression of the insect screen 2, all of the first corner pieces 24 and second corner pieces 27 attached to the four corners of the net 21 are fitted into the grooves 31a, 32a of the pair of vertical frame rods 31 and the pair of horizontal frame rods 32 from the inner periphery side of the screen mounting frame 3, and the insect screen 2 is held in the screen mounting frame 3 with the net 21 stretched, as shown in Figures 1 and 2. At this time, the outer periphery of the insect screen 2, including the four elastic wires 23 and the four corner pieces 24, 27, is fitted into the grooves 31a, 32a.

[0041] Conversely, when removing the insect screen 2 from the screen mounting frame 3 for maintenance or replacement of the insect screen 2, the steps taken when assembling the screen device 1 are simply reversed. In the screen door device 1, elastic seal members made of urethane foam or the like may be attached in advance to the groove bottoms of the recessed grooves 31a, 32a of the screen door mounting frame 3 in order to further improve the insect-repellent function.

[0042] As described above, with the insect screen 2 and the screen device 1 using it, the insect screen 2 can be attached and detached very easily from the screen mounting frame 3, which makes it possible to further improve the work efficiency in maintaining and replacing the insect screen 2. Furthermore, the insect screen 2 not only has a simple structure and can be made small and lightweight as described above, but also allows for very easy separation when discarding. [Explanation of symbols]

[0043] W: Building opening 1: Screen door device 2: Insect screen 21: Internet 22: Hollow tape 22a: Vertical hollow tape 22b: Horizontal hollow tape 23: Elastic wire 23a: longitudinal elastic wire 23b: Transverse elastic wire 24: First corner part 24a: Central part 24b: Vertical line contact part 24c: Horizontal line contact part 25: Vertical arm part 25a: Vertical slit 25b: Narrow width part 25c: Wide section 26: Horizontal arm part 26a: Horizontal slit 26b: Narrow width part 26c: Wide section 27: Second corner part 27a: Central part 27b: Cover 27c: Through hole 27d: Cover mounting screw 27e: Screw hole 28: Vertical arm part 28a: Vertical slit 28b: Narrow width part 28c: Wide section 29: Horizontal arm part 29a: Horizontal slit 29b: Narrow width part 29c: Wide section 3: Screen door mounting frame 3a: Frame fixing screw 31: Vertical frame rod 31a: Groove 32:Horizontal frame rod 32a: Groove 4: Sash 5: Shoji screen 6: Mounting part

Claims

1. An insect screen for removably mounting to a screen mounting frame of a building opening, comprising: The net has a rectangular, flexible net having left and right vertical sides and top and bottom horizontal sides, flexible hollow tapes attached to the left and right vertical sides and top and bottom horizontal sides of the net, elastic wires attached to the left and right vertical sides and top and bottom horizontal sides of the net by being inserted into the hollow tapes to keep the net rectangular, and corner parts attached to the four corners of the net to prevent the elastic wires from falling off. An insect repellent screen door characterized by:

2. The rigidity of the elastic wires attached to the left and right vertical sides of the net is different from the rigidity of the elastic wires attached to the upper and lower horizontal sides of the net.

2. The insect screen door according to claim 1.

3. The lengths of the left and right vertical sides of the net are different from the lengths of the upper and lower horizontal sides, and the rigidity of the elastic wire attached to the shorter side is smaller than the rigidity of the elastic wire attached to the longer side.

3. The insect screen door according to claim 2.

4. The wire diameter of the elastic wire attached to the short side is smaller than the wire diameter of the elastic wire attached to the long side.

4. The insect screen door according to claim 3.

5. The corner parts are harder than the net and the hollow tape, are attached so as to straddle adjacent vertical and horizontal sides of the net, and have vertical arm portions extending along the vertical sides, horizontal arm portions extending along the horizontal sides, and a central portion located between the vertical arm portions and the horizontal arm portions; The vertical arm portion has a vertical slit into which the hollow tape attached to the vertical side fits together with the elastic filament, The horizontal arm portion has a horizontal slit into which the hollow tape attached to the horizontal side fits together with the elastic filament, The central portion has abutment portions against which the ends of the elastic wires attached to the vertical and horizontal sides abut, 5. An insect screen door according to claim 1.

6. Among the corner parts attached to the four corners, at least the central portions of the two corner parts located diagonally opposite to the net have a cover that can be opened and closed, and the abutment portion is formed on the cover. When the cover is opened, the ends of the hollow tape attached to the vertical and horizontal sides are exposed, thereby making it possible to insert and remove the elastic wire into and from the hollow tape.

6. The insect screen door according to claim 5.

7. The net and hollow tape are made of fiber, the elastic filaments are made of metal, and the corner parts are made of synthetic resin.

7. An insect screen door according to any one of claims 1 to 6.

8. A screen door device comprising an insect screen door according to any one of claims 1 to 7 attached to a screen door mounting frame fixedly attached to an opening in a building, The screen door mounting frame has a series of grooves that open onto the inner periphery of the rectangle, The outer periphery of the insect screen, including the elastic strips and the corner parts, is fitted into the groove. A screen door device characterized by:

Images