Simple screen door device for entrance

Abstract

This invention provides a simple screen door device for entrances that is both efficient and aesthetically pleasing. [Solution] The simple screen door 2 for the entrance is detachably installed on the inside of the entrance door 10 in the first area R1. When the entrance door 10 is opened while the opening of the entrance door 10 is restricted by the door guard 14, the simple screen door 2 covers the gap S1 on the side of the entrance door 10. Furthermore, the gap S1 above the entrance door 10 is sealed by the first sealing member 3, and the gap below the entrance door 10 is sealed by the second sealing member 4.

Description

Technical Field

[0001] The present invention relates to a simple screen door device for an entrance.

Background Art

[0002] Conventionally, an entrance screen door has been used to improve ventilation. As this entrance screen door, there is known one including a frame body attached to the inside of an entrance door and a folding door provided on this frame body and made foldable (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, the above-described entrance screen door has a problem in that it is inefficient and looks bad because it entirely covers the inside of the entrance door.

[0005] Therefore, in view of the above problems, an object of the present invention is to provide a simple screen door device for an entrance that is efficient and has a good appearance.

Means for Solving the Problems

[0006] The object of the present invention is achieved by the following means. In the parentheses are the reference signs of the embodiments described later, but the present invention is not limited thereto.

[0007] According to the invention according to claim 1, a simple screen door (2) for an entrance that is detachably provided inside an entrance door (10) provided with a door guard (14), A first sealing member (3) is detachably provided above the aforementioned entrance door (10), The entrance door (10) has a second sealing member (4) that is detachably provided below it, The inside of the entrance door (10) comprises a first region (R1) where the door guard (14) is provided, directed toward the central axis (O1) of the entrance door (10), and a second region (R2) where the door guard (14) is not provided, directed toward the central axis (O1) of the entrance door (10). The aforementioned simple screen door (2) for the entrance is detachably installed on the inside of the entrance door (10) in the first area (R1). The present invention is characterized in that, when the entrance door (10) is opened while the opening of the entrance door (10) is restricted by the door guard (14), the gap (S1) on the side of the entrance door (10) is covered by the simple screen door (2) for the entrance, the gap (S1) above the entrance door (10) is closed by the first sealing member (3), and the gap below the entrance door (10) is closed by the second sealing member (4).

[0008] According to the invention of claim 2, in the simple screen door device (1) for entrance doors described in claim 1, the simple screen door (2) for entrance doors is detachably provided on the inside of the entrance door (10) so that it can be moved from the first area (R1) to the second area (R2) and held therein when not in use.

[0009] According to the invention of claim 3, in the simple screen door device (1) for entrances described in claim 2, the second sealing member (4) is characterized in that it can be folded when the simple screen door (2) for entrances is moved from the first area (R1) to the second area (R2).

[0010] According to the invention of claim 4, in the simple screen door device (1) for entrance described in claim 2, the simple screen door (2) for entrance is characterized in that, when not in use, it is moved from the first region (R1) to the second region (R2) and held therein, without changing the surface visible in the first region (R1).

[0011] According to the invention of claim 5, in the simple screen door device (1) for entrance doors described in claim 1, a door lock guard (5) is attached to the door guard (14) so ​​that when the entrance door (10) is opened while the opening of the entrance door (10) is restricted by the door guard (14), that state can be maintained. [Effects of the Invention]

[0012] Next, the effects of the present invention will be described with reference to the reference numerals in the drawings. Note that the reference numerals in parentheses are those of embodiments described later, but the present invention is not limited thereto.

[0013] According to the invention of claim 1, when the entrance door (10) is opened while the opening of the entrance door (10) is restricted by the door guard (14), the gap (S1) on the side of the entrance door (10) is covered with a simple screen door for entrances (2), the gap (S1) above the entrance door (10) is covered with a first sealing member (3), and the gap below the entrance door (10) is covered with a second sealing member (4). As a result, it is not necessary to cover the entire inside of the entrance door as in the conventional method, which is efficient and also improves the appearance.

[0014] According to the invention of claim 2, the process of storing the simple screen door (2) for the entrance becomes extremely easy.

[0015] According to the invention of claim 3, it is possible to prevent the user from injuring their leg with the second blocking member (4).

[0016] According to the invention of claim 4, a simple screen door (2) for the entrance can be stored in an aesthetically pleasing manner.

[0017] According to the invention of claim 5, the limited open state of the entrance door (10) can be easily maintained.

Brief Description of the Drawings

[0018] [Figure 1] The state where the simple screen door device for the entrance according to an embodiment of the present invention is attached to the inside of the entrance door is shown. (a) is a front view showing the state when not in use, and (b) is a cross-sectional view of (a). [Figure 2] The state where the simple screen door device for the entrance according to the same embodiment is attached to the inside of the entrance door is shown. (a) is a front view showing the state when in use, and (b) is a cross-sectional view of (a). [Figure 3] It is a perspective view of the simple screen door for the entrance according to the same embodiment. [Figure 4] (a) is a perspective view of the first closing member according to the same embodiment, and (b) is a perspective view of the second closing member according to the same embodiment. [Figure 5] (a) is a perspective view showing a state where a door lock guard is to be fitted into a door guard with a gap left between the entrance door and the door frame, and (b) is a perspective view showing a state where the door lock guard is fitted into the door guard. [Figure 6] (a) is a perspective view showing a state where the first closing member and the second closing member are to be attached to the inside of the entrance door from the state shown in Fig. 5(b), and (b) is a perspective view showing a state where the first closing member and the second closing member are attached to the inside of the entrance door. [Figure 7] (a) is a perspective view showing a state where the simple screen door for the entrance is to be attached to the inside of the entrance door from the state shown in Fig. 6(b), and (b) is a perspective view showing a state where the simple screen door for the entrance is attached to the inside of the entrance door. [Figure 8] (a) is a perspective view showing a state where the screen door body is being rotated from the state shown in Fig. 7(b), and (b) is a perspective view showing a state where the screen door body is further rotated from the state shown in (a). [Figure 9](a) is a partial cross-sectional view of Fig. 8(a), and (b) is a partial cross-sectional view of Fig. 8(b). [Figure 10] (a) is a perspective view showing a state in which a simple entrance screen door is attached and stored inside an entrance door, and (b) to (c) are perspective views for explaining a method of folding a second closing member. [Figure 11] (a) is a perspective view showing a state in which a door lock guard fitted in a door guard is removed from the state shown in Fig. 10(a), and (b) is a perspective view showing a state in which the entrance door is closed. [Figure 12] It is a cross-sectional view for explaining another method of attaching and storing a simple entrance screen door inside an entrance door. (a) shows the state of the simple entrance screen door during use, and (b) shows the state of the simple entrance screen door when not in use.

Mode for Carrying Out the Invention

[0019] Hereinafter, a simple entrance screen door device according to an embodiment of the present invention will be specifically described with reference to the drawings. In the following description, when indicating the up-down, left-right directions, it refers to the up-down, left-right as seen from the front shown in the drawing.

[0020] <Schematic Explanation of Simple Entrance Screen Door Device> The simple screen door device for entrances according to this embodiment is efficient and aesthetically pleasing. Specifically, as shown in Figure 1, the simple screen door device 1 for entrances is installed on the inside of the entrance door 10, as shown in Figures 1 and 2. This entrance door 10 is made of steel plate or the like, and as shown in Figures 1 and 2, a door frame 11 is provided around the perimeter of the entrance door 10, which is fixed to the building structure K shown in Figures 1(b) and 2(b). The entrance door 10 is installed on this door frame 11 so as to be able to be opened and closed in the inward and outward directions. Furthermore, as shown in Figure 1(a), a handle 12 for opening and closing the entrance door 10 is provided in the central part of the left side of the entrance door 10. In addition, as shown in Figure 1(a), a connector 13 is fixed to the upper left side of the entrance door 10, and a door guard 14 is provided that can be detachably connected to this connector 13. As shown in Figure 1(a), the door guard 14 is formed in a horizontally elongated semi-ring shape when viewed from the front. When connected to the connector 13 (see the dashed line portion shown in Figure 1(b)), it restricts the opening of the entrance door 10 and prevents the entrance door 10 from being opened from the outside. When the door guard 14 is not connected to the connector 13 (see the solid line portion shown in Figure 1(b)), it does not restrict the opening of the entrance door 10. Therefore, the entrance door 10 is not restricted from being opened from the outside. In this embodiment, as shown in Figures 1(a) and 2(a), the area to the left of the central axis O1 of the entrance door 10 is defined as the first region R1, and the area to the right of the central axis O1 of the entrance door 10 is defined as the second region R2. As shown in Figures 1(a) and 2(a), the door guard 14 is provided in the first region R1, but not in the second region R2.

[0021] Thus, a simple screen door device 1 for the entrance is installed on the inside of the entrance door 10, as shown in Figures 1 and 2. To explain this simple screen door device 1 for the entrance in more detail, as shown in Figures 1 and 2, the simple screen door device 1 for the entrance is mainly composed of a simple screen door 2 for the entrance, a first sealing member 3, and a second sealing member 4. Each component will be explained in detail below.

[0022] <Explanation of a simple screen door for the entrance> As shown in Figure 3, the simple screen door 2 for entrances is equipped with a vertically elongated rectangular screen door body 20 that extends in the vertical direction. As shown in Figure 3, a rotating plate 21 is provided on the right side 20a of the screen door body 20. More specifically, the rotating plate 21 is provided on the right side 20a of the screen door body 20 so that the screen door body 20 can rotate approximately 90 degrees around the right side 20a of the screen door body 20 as a pivot point. As shown in Figure 3, this rotating plate 21 is formed in a vertically elongated rectangular shape that extends in the vertical direction and is provided in a direction perpendicular to the screen door body 20. Furthermore, as shown in Figure 3, a fixing plate 22 is provided on the rear side 21a of the rotating plate 21. More specifically, the fixing plate 22 is provided on the rear side 21a of the rotating plate 21 so that the rotating plate 21 can rotate approximately 90 degrees around the rear side 21a of the rotating plate 21 as a pivot point. As shown in Figure 3, the fixing plate 22 is formed in a vertically elongated rectangular shape and is positioned perpendicular to the rotating plate 21. As shown in Figure 2(b), a magnet M1 is provided on the back surface of the fixing plate 22.

[0023] Thus, to explain in more detail the screen door body 20 of the simple entrance screen door 2 configured in this way, as shown in Figure 3, a mesh screen door 24 is attached and fixed within a screen door frame 23 which is composed of an upper frame 23a, a left frame 23b, a lower frame 23c, and a right frame 23d. Furthermore, as shown in Figure 3, a handle 25 is provided at approximately the center of the front surface (front side in the illustration) of the left frame 23b, and a magnet M2 is provided on this handle 25. In addition, as shown in Figure 2(b), a magnet M3 is provided on the back surface (upper side in the illustration) of the left frame 23b.

[0024] Thus, the simple screen door 2 for the entrance, configured in this way, can be detachably attached to the first area R1 on the inside of the entrance door 10 using magnets M1 and M3 shown in Figure 2(b), as shown in Figure 2(a).

[0025] On the other hand, when not in use, the screen door body 20 and the rotating plate 21 can be rotated from the state shown in Figure 2(b) to the state shown in Figure 1(b), and the magnet M2 shown in Figure 3 can be attached to the second area R2 on the inside of the entrance door 10. As a result, the simple screen door for the entrance 2 is held in the state shown in Figure 1(a).

[0026] <Explanation of the first sealing member> As shown in Figure 4(a), the first sealing member 3 consists of a first main body 30 formed in an elongated trapezoidal shape in the left-right direction, and a first mounting piece 31 integrally provided on the front side surface 30c of the first main body 30. As shown in Figure 4(a), the first mounting piece 31 is formed in an elongated rectangular shape from the left side surface 30a to the right side surface 30b of the first main body 30, and is also formed in an upright shape in the vertical direction. As shown in Figure 4(a), a magnet M4 is attached to the surface (front surface) of this first mounting piece 31.

[0027] Thus, the first sealing member 3, configured as described above, can be detachably attached to the upper inner side of the entrance door 10 using the magnet M4 shown in Figure 4(a), as shown in Figures 1 and 2.

[0028] <Explanation of the second sealing member> As shown in Figure 4(b), the second sealing member 4 comprises a second body 40 formed in an elongated trapezoidal shape in the left-right direction of the illustration. As shown in Figure 4(b), a foldable upright piece 41 formed by a hinge is provided on the right side 40b of the second body 40. Furthermore, as shown in Figure 4(b), a foldable second mounting piece 42 formed by a hinge is provided on the front side 40c of the second body 40. As shown in Figure 4(b), the second body 40 has a bendable portion 40e formed diagonally from the front side 40c on the right side 40b towards the rear side 40d, and a hinge 40e1 is provided on the back side of this bendable portion 40e. As a result, the second body 40 is foldable with this bendable portion 40e as the pivot point. And, as shown in Figure 4(b), a magnet M5 is attached to the surface (front side shown) of the second mounting piece 42.

[0029] Thus, the second sealing member 4, configured as described above, can be detachably attached to the inner lower side of the entrance door 10 using the magnet M5 shown in Figure 4(b), as shown in Figures 1 and 2.

[0030] The above explanation concerns the configuration of the simple screen door device 1 for the entrance.

[0031] <Explanation of an example of using a simple screen door device for entrances> Next, an example of using the simple screen door device 1 for entrances, configured as described above, will be explained below.

[0032] First, to improve ventilation, the front door 10 is opened using the handle 12, as shown in Figure 5(a). At this time, as shown in Figure 5(a), the door guard 14 is connected to the connector 13 to restrict the opening of the front door 10 and prevent it from being opened from the outside.

[0033] However, although the door guard 14 has the function of restricting the opening of the entrance door 10, it does not have the function of maintaining that open state, so the door lock guard 5 shown in Figure 5(a) is used. Specifically, as shown in Figure 5(a), the door lock guard 5 is formed in a tilted mountain shape when viewed from the side, and can be fitted into the door guard 14 which is formed in a horizontally elongated semi-ring shape when viewed from the front, as shown in Figure 1(a). As a result, as shown in Figure 5(b), even if the entrance door 10 tries to return to its original position, its movement is prevented by the door lock guard 5, thus maintaining the entrance door 10 in a limited open state (see also Figure 2(b)). Therefore, as shown in Figure 5(b), a gap S1 is always formed between the door frame 11 and the entrance door 10, and outside air flows steadily into the room through this gap S1.

[0034] However, if left as is, insects and other creatures could enter the room from outside through this gap S1. Therefore, in this embodiment, the following is done.

[0035] Specifically, as shown in Figure 6(a), the first sealing member 3 is attached to the upper inner side of the entrance door 10 using the magnet M4 shown in Figure 4(a) in order to almost completely seal the upper gap S1 between the entrance door 10 and the door frame 11. Then, as shown in Figure 6(a), the second sealing member 4 is attached to the lower inner side of the entrance door 10 using the magnet M5 shown in Figure 4(b) in order to almost completely seal the lower gap S1 between the entrance door 10 and the door frame 11. As a result, the upper and lower gaps S1 between the entrance door 10 and the door frame 11 are almost completely sealed, eliminating the risk of insects or other things entering the room from outside through these gaps S1. However, outside air will also not be able to flow into the room through these gaps S1.

[0036] However, as shown in Figure 6(b), the gap S1 between the entrance door 10 and the door frame 11 on the door guard 14 side, where the most outside air flows into the room, is not sealed, so the condition in which outside air flows into the room is maintained. However, there is a risk that insects and other things may enter the room from outside through this gap S1. Therefore, in this embodiment, the following is further done.

[0037] Specifically, as shown in Figure 7(a), the simple screen door 2 for the entrance is attached to the inside of the entrance door 10 using magnets M1 and M3 shown in Figure 2(b), so as to cover the handle 12 and the door guard 14 (see Figure 7(b)). Note that magnet M1 shown in Figure 2(b) is attached to the inside of the entrance door 10, while magnet M3 shown in Figure 2(b) is attached to the left frame 11a of the door frame 11 shown in Figure 7(a).

[0038] Thus, in this manner, as shown in Figure 7(b), the gap S1 shown in Figure 6(b) is covered by the simple screen door 2 for the entrance (see also Figure 2(b)). As a result, the outside air flowing in through the gap S1 shown in Figure 6(b) (see also Figure 2(b)) passes through the mesh screen door 24 and flows into the room. At this time, the mesh screen door 24 prevents insects and other things from entering the room from outside.

[0039] Therefore, in this way, the screen door 24 can be installed only in the area where the most outside air flows into the room. Furthermore, the gap S1 in the area not covered by the simple screen door 2 for the entrance is sealed with the first sealing member 3 and the second sealing member 4. As a result, it is not necessary to cover the entire inside of the entrance door 10 as in the conventional method, making it efficient and aesthetically pleasing.

[0040] Next, we will explain the situation when the simple screen door device 1 for the entrance, installed as described above, is not in use, that is, when it is not in use.

[0041] As shown in Figure 8(a), the user uses the handle 25 to release the magnet M3 shown in Figure 2(b) (see also Figure 9(a)) which is attached to the left frame 11a of the door frame 11 shown in Figure 7(a), and rotates the screen door body 20 by approximately 90 degrees, with the right side 20a of the screen door body 20 as the pivot point. As a result, as shown in Figure 9(a), the screen door body 20 moves from the solid line position to the dashed line position.

[0042] Furthermore, as shown in Figure 8(b), when the user attempts to rotate the screen door body 20 using the handle 25, the rotating plate 21 rotates approximately 90 degrees around its rear side surface 21a, as shown in Figure 9(b). As a result, the screen door body 20 moves together with the rotating plate 21 from the solid line position to the dashed line position, as shown in Figure 9(b). That is, as shown in Figure 1(a), the simple screen door for the entrance 2 (screen door body 20) can move to the second region R2 located to the right of the central axis O1 position of the entrance door 10. Thus, this movement causes the magnet M2 provided on the handle 25 of the screen door body 20, as shown in Figure 9(b), to be attached to the inside of the entrance door 10. As a result, the position of the screen door body 20 is maintained at the position shown in Figure 9(b).

[0043] Therefore, in this manner, when not in use, the screen door body 20 can be stored simply by rotating it using the handle 25, making the storage process very easy. When using the screen door, simply reverse the procedure described above.

[0044] By the way, when the entrance door 10 is closed while the screen door body 20 is held in the position described above, the first sealing member 3 and the second sealing member 4 close the gap S1 between the door frame 11 and the entrance door 10, as shown in Figure 6(b). As a result, the first sealing member 3 and the second sealing member 4 protrude inward. In this case, since the second sealing member 4 is attached to the lower inner side of the entrance door 10, there is a risk that the user may injure their leg with this second sealing member 4. Therefore, in this embodiment, the second sealing member 4 is designed to fold when the screen door body 20 is rotated.

[0045] Specifically, as shown in Figure 9(a), when the screen door body 20 is moved from the solid line position to the dashed line position and then rotated, the rotating plate 21 attempts to rotate around its rear side surface 21a as the pivot point, as shown in Figure 10(b). At this time, along with the rotation of the rotating plate 21, the upright piece 41 formed by the hinge and the second mounting piece 42 formed by the hinge rotate upward as shown in Figure 10(b). Furthermore, as shown in Figure 10(c), when the rotating plate 21 rotates, the hinge 40e1 (see Figure 4(b)) provided on the back side of the folded portion 40e shown in Figure 10(b) rotates upward as shown in Figure 10(c). As a result, the second closing member 4 is folded, as shown in Figure 10(c). Furthermore, the folded state of the second sealing member 4 is maintained because the screen door body 20 is held in the position shown in Figure 9(b). Therefore, even if the second sealing member 4 tries to return to its original position, it is restricted (hindered) by the screen door body 20 and remains in its folded state. Consequently, when the screen door body 20 returns to the positions shown in Figures 2(a) and 7(b), the restriction (hinder) is released, and the second sealing member 4 returns to its original position due to its own weight.

[0046] Therefore, in this manner, even if the entrance door 10 is closed while the screen door body 20 is held in the position described above, the second blocking member 4 will not protrude into the room. This prevents the user from injuring their leg with the second blocking member 4.

[0047] By the way, in this embodiment, as shown in Figure 10(b), the right side surface 40b and the front side surface 40c of the second body 40 of the second sealing member 4 are formed in a V-shape. In this case, as shown in Figure 10(b), when the rotating plate 21 rotates with the rear side surface 21a of the rotating plate 21 as the pivot point, a force is applied to the upright piece 41 shown in Figure 10(b), and further, a force is applied to the second mounting piece 42 shown in Figure 10(b) from an oblique direction. As a result, as shown in Figure 10(b), the upright piece 41 and the second mounting piece 42 rotate upward in the illustrated direction.

[0048] However, if the right side surface 40b and the front side surface 40c of the second body 40 in the second sealing member 4 are at a right angle, when the rotating plate 21 rotates with the rear side surface 21a of the rotating plate 21 as the pivot point, even if an oblique force is applied to the upright piece 41 shown in Figure 10(b), no oblique force is applied to the second mounting piece 42 shown in Figure 10(b), making it difficult for force to be transmitted to the second mounting piece 42 shown in Figure 10(b). Therefore, as shown in Figure 10(b), the second mounting piece 42 will not rotate upward as shown. Consequently, as explained above, the second sealing member 4 will not be able to be folded. For this reason, in this embodiment, the right side surface 40b and the front side surface 40c of the second body 40 in the second sealing member 4 are formed in a V-shape.

[0049] As explained above, after the screen door body 20 is held in the position shown in Figure 9(b), the door lock guard 5 is removed from the door guard 14 as shown in Figure 11(a). Then, as shown in Figure 11(b), the entrance door 10 is closed so that there is no gap S1 between the door frame 11 and the entrance door 10 (see Figure 11(a)). Note that in Figure 11(b), the coupling device 13 of the door guard 14 is released.

[0050] The above describes an example of how to use the simple screen door device 1 for entrances.

[0051] Therefore, according to the embodiment described above, it is possible to achieve both efficiency and a good appearance.

[0052] <Explanation of variations> It should be noted that the shapes and other features shown in this embodiment are merely examples, and various modifications and changes are possible within the scope of the gist of the present invention as described in the claims. For example, in this embodiment, an example is shown in which the door lock guard 5 is used to maintain a limited open state of the entrance door 10, as shown in Figure 5(b). However, it is not limited to this, and any member can be inserted between the door frame 11 and the entrance door 10 to maintain the open state, as long as it is sufficient to maintain a limited open state of the entrance door 10. However, using the door lock guard 5 is preferable because it is easy and simple to maintain a limited open state of the entrance door 10.

[0053] Furthermore, in this embodiment, when storing the screen door body 20 when not in use, as shown in Figure 9, it is rotated approximately 180 degrees to hold the screen door body 20 in a state where the surface of the screen door 24 on the outside when in use is exposed to the inside (that is, the surface of the screen door 24 on the inside when in use becomes the surface of the screen door 24 on the outside when not in use, and the surface of the screen door 24 on the outside when in use becomes the surface of the screen door 24 on the inside when not in use). However, it is not limited to this, and a method as shown in Figure 12 is also acceptable. That is, the magnet M3 attached to the left frame 11a of the door frame 11 shown in Figure 7(a) is released using the handle 25 shown in Figure 12(a). Then, as shown in Figure 12(a), when the user slides the screen door body 20 to the right in the illustrated direction using the handle 25, the rotating plate 21 rotates approximately 180 degrees around the rear side surface 21a of the rotating plate 21 as the pivot point. Subsequently, as shown in Figure 12(a), when the user slides the screen door body 20 upwards using the handle 25, the screen door body 20 rotates approximately 180 degrees around its right side 20a, resulting in the state shown in Figure 12(b). In other words, this allows the screen door 24 on the interior side when in use to be stored in the same state when not in use. As a result, even if insect-repellent rubber or the like is attached to the exterior side of the screen door 24 to prevent insects from entering through the gaps in the screen door 24, it will not be exposed to the interior when not in use, allowing for neat storage. In this case, to prevent the screen door body 20 from flapping (wobbling) when stored, it is preferable to provide magnets on the upper frame 23a and lower frame 23c as shown in Figure 3, and when stored as shown in Figure 12(b), these magnets are attached to the rotating plate 21 or to the inside of the entrance door 10. [Explanation of symbols]

[0054] 1. Simple screen door device for entrance 2. Simple screen door for entrance 3. First sealing member 4. Second sealing member 5 Door Lock Guard 10. Entrance door 14 Door Guard O1 center axis S1 Gap R1, Domain 1 R2, Second Domain

Claims

1. A simple screen door for the entrance, which is detachably installed on the inside of the entrance door equipped with a door guard, A first sealing member is detachably provided above the aforementioned entrance door, It has a second sealing member that is detachably provided below the entrance door, The inside of the aforementioned entrance door comprises a first region, which is the area where the door guard is provided, with respect to the central axis of the entrance door, and a second region, which is the area where the door guard is not provided, with respect to the central axis of the entrance door. The aforementioned simple screen door for the entrance is detachably installed on the inside of the entrance door in the first area. A simple screen door device for an entrance door, wherein, when the entrance door is opened while the opening of the entrance door is restricted by the door guard, the gap on the side of the entrance door is covered with the simple screen door for entrance doors, the gap above the entrance door is sealed with the first sealing member, and the gap below the entrance door is sealed with the second sealing member.

2. The simple screen door device for an entrance according to claim 1, wherein the simple screen door for the entrance is detachably provided on the inside of the entrance door so that it can be moved from the first area to the second area and held in place when not in use.

3. The simple screen door device for an entrance according to claim 2, wherein the second sealing member is foldable when the simple screen door for the entrance is moved from the first area to the second area.

4. The simple screen door for the entrance according to claim 2, wherein when not in use, the simple screen door for the entrance is moved from the first area to the second area and held therewith no change in the surface visible in the first area.

5. The simple screen door device for an entrance door according to claim 1, wherein a door lock guard is attached to the door guard so that when the entrance door is opened while the opening of the entrance door is restricted by the door guard, that state can be maintained.

Images