Interior window

Abstract

To provide an interior window consisting of an opening window with improved sealing properties. [Solution] A bathroom interior window is installed on the interior side of an exterior window provided in an opening in a bathroom, comprising a frame body composed of an upper frame, a lower frame, and a pair of vertical frames; a door stop member provided protruding from the inner circumferential surface of the frame body; and a sliding door housed inside the frame body, which opens toward the interior and closes so as to abut against the door stop member from the interior side, wherein the frame body has screw insertion holes through which screws for fixing to the opening are inserted, and the door stop member is individually attached to the inner circumferential surfaces of the upper frame, lower frame, and pair of vertical frames so as to cover the screw insertion holes from the exterior, interior, and interior sides, and a first sealing material is provided at least one end of the door stop member attached to at least one of the upper frame, lower frame, and pair of vertical frames.

Description

Technical Field

[0001] This disclosure relates to an inner window.

Background Art

[0002] Conventionally, it is known to attach an inner window consisting of a sliding window to the indoor side of an outer window provided at an opening of a bathroom (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] The inventor has found new problems regarding the sealing performance when an opening window that opens toward the indoor side is provided as an inner window to be attached to a bathroom. That is, an object of the present disclosure is to provide an inner window consisting of an opening window with improved sealing performance.

Means for Solving the Problems

[0005] This disclosure relates to an interior window installed on the interior side of an exterior window provided in an opening in a bathroom, comprising: a frame body composed of an upper frame, a lower frame, and a pair of vertical frames; a door stop member provided protruding from the inner circumferential surface of the frame body; and a sliding door housed inside the frame body, which opens toward the interior and closes so as to abut against the door stop member from the interior side, wherein the frame body has screw insertion holes through which screws for fixing to the opening are inserted, and the door stop member is individually attached to the inner circumferential surfaces of the upper frame, the lower frame, and the pair of vertical frames respectively so as to cover the screw insertion holes from the exterior, interior, and interior sides, and a first sealing material is provided at least one end of the door stop member attached to at least one of the upper frame, the lower frame, and the pair of vertical frames. [Brief explanation of the drawing]

[0006] [Figure 1] This is a front view of the interior window according to this embodiment, as seen from the interior side. [Figure 2] This is a vertical cross-sectional view of the interior window along line AA in Figure 1. [Figure 3] This is a cross-sectional view of the interior window along line BB in Figure 1. [Figure 4] This is a perspective view showing the frame and door stopper of the inner window according to this embodiment, disassembled. [Figure 5] This is a front view of the inner window frame and door stopper member as seen from the outside according to this embodiment. [Figure 6] This is a front view of the inner window frame and door stopper member as seen from the interior side, according to this embodiment. [Figure 7] This is a perspective view of one of the door stop members of the inner window according to this embodiment, as seen from the outside. [Figure 8] Figure 7 shows the door stopper member as viewed from the longitudinal direction. [Figure 9] Figure 7 shows the end of the door stopper member as viewed from the outside. [Figure 10] This is a perspective view from the outside of the window showing the vertical door stopper member of the inner window according to this embodiment in a disassembled state. [Figure 11]Figure 10 shows the vertical door stopper member as viewed from the length direction. [Figure 12] This is a perspective view showing the frame and door stop member of an inner window according to another embodiment, disassembled. [Figure 13] Figure 12 shows the frame and door stopper member viewed from the longitudinal direction. [Figure 14] This is a cross-sectional view showing the left vertical frame side of an interior window according to another embodiment. [Modes for carrying out the invention]

[0007] The embodiments of this disclosure will now be described in detail with reference to the drawings. As shown in Figures 1 to 3, the interior window 1 is installed on the interior side of the exterior window 400 (see Figure 14), which is provided in the opening 101 of the bathroom in the building structure, at a predetermined distance from the exterior window 400. The exterior window 400 is a sliding window, an outward-opening window, etc. However, the exterior window is not shown in Figures 2 to 3. The interior window 1 is constructed by having a door stop member 3 on the inner circumferential surface of a frame 2, and housing a sash 4 inside the frame 2 that opens toward the interior side X2 and closes so as to abut against the door stop member 3 from the interior side X2.

[0008] Here, we define the directions shown in each figure. In each figure, X1 indicates the exterior side of the interior window 1, and X2 indicates the interior side of the interior window 1. In the interior window 1, the direction toward the inside of the rectangular frame 2 is defined as the interior, and the direction toward the outside of the rectangular frame 2 is defined as the exterior. In the rectangular frame 2, the surface facing inward is called the inner circumferential surface, and the surface facing outward is called the outer circumferential surface.

[0009] The frame 2 is constructed by framing an upper frame 2a, a lower frame 2b, and a pair of left and right vertical frames 2c, 2d in a rectangular shape around its perimeter. The upper frame 2a, lower frame 2b, and vertical frames 2c, 2d are made of extruded profiles formed by extrusion molding from metal or resin material. The upper frame 2a, lower frame 2b, and vertical frames 2c, 2d have the same configuration except that their positions on the frame 2 differ vertically (up, down, left, and right), and that the lengths of the upper frame 2a and lower frame 2b and the left and right vertical frames 2c, 2d differ.

[0010] Figure 4 shows the common configuration of the upper frame 2a, lower frame 2b, and vertical frames 2c, 2d. The upper frame 2a, lower frame 2b, and vertical frames 2c, 2d have an exterior wall portion 21 facing the exterior side X1, an interior wall portion 22 facing the interior side X2, an outer peripheral wall portion 23 facing the outside of the frame body 2, and an inner peripheral wall portion 24 facing the inside of the frame body 2, and are formed in a rectangular cross-section with a hollow portion 25 inside.

[0011] Multiple protrusions 231 are provided on the outer circumferential surfaces 230 of the upper frame 2a, lower frame 2b, and vertical frames 2c, 2d. The multiple protrusions 231 are provided so as to project outward from the outer circumferential wall 23. The multiple protrusions 231 extend along the entire length of the upper frame 2a, lower frame 2b, and vertical frames 2c, 2d, and are arranged parallel to each other in the indoor-outdoor direction. A fin member 232 made of resin or rubber is provided at the indoor-side X2 end of the outer circumferential wall 23.

[0012] A pair of protruding pieces 241 and 242 are integrally formed on the inner circumferential surfaces 240 of the upper frame 2a, lower frame 2b, and vertical frames 2c and 2d. The protruding pieces 241 and 242 are provided to protrude inward from the frame body 2 on the outdoor side X1, which is further from the center of the inner circumferential wall portion 24 in the indoor-outdoor direction. The protruding pieces 241 and 242 extend along the length direction of the upper frame 2a, lower frame 2b, and vertical frames 2c and 2d, and are arranged parallel to each other at a predetermined interval in the indoor-outdoor direction. One protruding piece 241 is positioned on the outdoor side X1, and the other protruding piece 242 is positioned on the indoor side X2. One protruding piece 241 is shorter in height than the other protruding piece 242. A locking claw portion 241a is formed at the tip of the protruding piece 241, which is bent toward the outdoor side X1. Multiple locking protrusions 242a are formed on both the outdoor side X1 and the indoor side X2 of the protruding piece 242.

[0013] In the inner peripheral wall portion 24, a screw insertion hole 243 is formed between a pair of protruding pieces 241 and 242. In the outer peripheral wall portion 23, a screw hole 233 is formed corresponding to the screw insertion hole 243. A plurality of screw insertion holes 243 and screw holes 233 are provided at predetermined intervals in the length direction of the upper frame 2a, the lower frame 2b, and the vertical frames 2c and 2d. As shown in FIGS. 2 and 3, a screw SC inserted through the screw insertion hole 243 is inserted into the screw hole 233 in the hollow portion 25 and fixed to the opening 101 through the outer peripheral wall portion 23. Thereby, the upper frame 2a, the lower frame 2b, and the vertical frames 2c and 2d constitute a frame body 2 extending around the opening 101. As shown in FIGS. 1, 5, and 6, the frame body 2 has a vertical-lapping structure in which the upper frame 2a is disposed between the upper end portions of the vertical frames 2c and 2d, and the lower frame 2b is disposed between the lower end portions of the vertical frames 2c and 2d. Therefore, the pair of protruding pieces 241 and 242 of the upper frame 2a and the lower frame 2b are provided over the entire length in the length direction of the upper frame 2a and the lower frame 2b, while the pair of protruding pieces 241 and 242 of the vertical frames 2c and 2d are cut out over the contact portion with the upper frame 2a and the lower frame 2b.

[0014] The door stop member 3 is made of an extruded profile extruded from a metal material or a resin material, similar to the frame body 2, and is attached to the inner peripheral surface 240 of the frame body 2 over the entire circumference. Specifically, the door stop member 3 is individually attached to the respective inner peripheral wall portions 24 along the length direction of the upper frame 2a, the lower frame 2b, and the vertical frames 2c and 2d. That is, as shown in FIGS. 5 and 6, the door stop member 3 is composed of an upper door stop member 3a attached to the upper frame 2a, a lower door stop member 3b attached to the lower frame 2b, and vertical side door stop members 3c and 3d attached to the left and right vertical frames 2c and 2d, respectively. In the following description, in cases where there is a common description for the upper door stop member 3a, the lower door stop member 3b, and the vertical side door stop members 3c and 3d, it may simply be referred to as the door stop member 3.

[0015] Figure 4 commonly shows the configuration of the door stop member 3. The door stop member 3 has an inner peripheral wall portion 31 facing the inside of the frame body 2, an outdoor wall portion 32 extending from the end of the inner peripheral wall portion 31 on the outdoor side X1 toward the inner peripheral surface 240 of the frame body 2, and an indoor wall portion 33 extending from the end of the inner peripheral wall portion 31 on the indoor side X2 toward the inner peripheral surface 240 of the frame body 2. The outdoor wall portion 32 and the indoor wall portion 33 have the same height from the inner peripheral wall portion 31. The distance between the outdoor wall portion 32 and the indoor wall portion 33 in the indoor-outdoor direction is formed so as to sandwich the pair of protruding pieces 241, 242 of the frame body 2 from the indoor-outdoor direction. In the door stop member 3, the outdoor wall portion 32 and the indoor wall portion 33 constitute a pair of engaging pieces that engage with the pair of protruding pieces 241, 242 of the frame body 2.

[0016] At the end of the inner peripheral wall portion 31 on the outdoor side X1, a standing wall portion 311 bent toward the inside of the frame body 2 is integrally formed. The standing wall portion 311 is formed at a position protruding more to the outdoor side X1 than the outdoor wall portion 32. However, the vertical side door stop members 3c, 3d attached to the left and right vertical frames 2c, 2d do not have the standing wall portion 311 (see FIGS. 10 and 11). At the end of the inner peripheral wall portion 31 on the indoor side X2, a resin or rubber fin member 312 that abuts against the outdoor side X1 surface of the shoji 4 when the shoji 4 is closed, which will be described later, is provided.

[0017] At the tip of the outdoor wall portion 32, a locking protrusion 321 that protrudes toward the indoor side X2 and locks from the outdoor side X1 to the locking claw portion 241a of the protruding piece 241 on the outdoor side X1 of the upper frame 2a, the lower frame 2b, and the vertical frames 2c, 2d is integrally formed. On the outdoor side X1 surface of the indoor wall portion 33, an L-shaped clamping piece 331 that sandwiches the protruding piece 242 on the indoor side X2 of the upper frame 2a, the lower frame 2b, and the vertical frames 2c, 2d between it and the indoor wall portion 33 is formed. Further, on the outdoor side X1 surface of the indoor wall portion 33, a plurality of locking protrusions 332 that lock with a plurality of locking protrusions 242a of the protruding piece 242 sandwiched between the clamping piece 331 are formed.

[0018] As shown in Figures 7 to 9, gap-sealing members 34 are provided at both ends of the upper door stop member 3a and the lower door stop member 3b, which are part of the door stop member 3 that extends around all four sides. Figure 4 also shows the door stop member 3 with the gap-sealing members 34 installed. The gap-sealing members 34 are made of an elastic or flexible material such as rubber or sponge and have light-blocking properties. The gap-sealing members 34 are attached by being sandwiched between the exterior wall 32 and the clamping piece 331 at both ends of the upper door stop member 3a and the lower door stop member 3b. As shown in Figure 9, the gap-sealing members 34 are provided so as to protrude from the end faces of the upper door stop member 3a and the lower door stop member 3b. The dimension L1 of the gap-sealing members 34 along the longitudinal direction of the upper door stop member 3a and the lower door stop member 3b is not limited in any way, but can be, for example, 20 mm to 30 mm.

[0019] The door stopper member 3 is attached to the inner circumferential wall portions 24 of the upper frame 2a, lower frame 2b, and vertical frames 2c, 2d, respectively, from the inside of the frame 2, by sandwiching the pair of protruding pieces 241, 242 of the upper frame 2a, lower frame 2b, and vertical frames 2c, 2d between the exterior wall portion 32 and the interior wall portion 33. The locking projection 321 of the door stopper member 3 on the exterior wall portion 32 is locked into the locking claw portion 241a of the protruding pieces 241 of the upper frame 2a, lower frame 2b, and vertical frames 2c, 2d. The clamping piece 331 of the door stopper member 3 clamps the protruding pieces 242 of the upper frame 2a, lower frame 2b, and vertical frames 2c, 2d between itself and the interior wall portion 33. The door stopper member 3 covers the screw insertion hole 243 from the outside X1, inside X2, and inside by the exterior wall portion 32, the interior wall portion 33, and the inner peripheral wall portion 31. As a result, the door stopper member 3 is attached to the inner peripheral surface 240 of the frame body 2 by engaging with it so as to cover the screw insertion hole 243 all around.

[0020] As shown in Figures 5 and 6, the door stopper member 3, which extends around all four sides, has a horizontally dominant structure in which the left and right vertical door stopper members 3c and 3d are positioned between the upper door stopper member 3a and the lower door stopper member 3b. The gap-sealing members 34, provided at both ends of the upper door stopper member 3a and the lower door stopper member 3b, respectively, contact the inner circumferential walls 24, 24 of the vertical frames 2c, 2d while bending and deforming. In this way, the gap-sealing members 34 prevent light from leaking in the indoor and outdoor directions from between the upper door stopper member 3a and the lower door stopper member 3b and the left and right vertical frames 2c, 2d. The ends of the left and right vertical door stopper members 3c and 3d contact the inner circumferential walls 31, 31 of the upper door stopper member 3a and the lower door stopper member 3b, respectively. In this case, both ends of the vertical door stop members 3c and 3d are shielded from the outside X1 by the vertical wall portions 311 and 311 formed on the inner peripheral wall portions 31 and 31 of the upper door stop member 3a and the lower door stop member 3b, respectively (see Figure 10). Therefore, even if gap-sealing members are not provided at both ends of the vertical door stop members 3c and 3d, there is no risk of light leaking in the indoor-outdoor direction.

[0021] As shown in Figures 1 to 3, the shoji screen 4 is constructed by housing glass G inside a frame body 40, which is formed by assembling an upper frame 40a, a lower frame 40b, and a pair of left and right vertical frames 40c, 40d in a rectangular shape. As shown in Figures 1 and 3, a hinge 41 is provided across the vertical frame 40c on the hanging side of the shoji screen 4 and the vertical frame 2c of the frame body 2. A reinforcing plate 251 is provided in the hollow portion 25 of the vertical frame 2c. The hinge 41 is attached to the vertical frame 2c by screwing a screw (not shown) that penetrates the inner peripheral wall portion 24 of the vertical frame 2c into the reinforcing plate 251.

[0022] A cam latch handle 42 is attached to the interior side X2 of the vertical frame 40d on the leading edge side of the shoji screen 4. A cam latch receiver 43 that engages with the cam latch handle 42 is provided on the exterior wall portion 21 of the vertical frame 2d of the frame body 2. A reinforcing plate 251 is also provided in the hollow portion 25 of the vertical frame 2d, similar to the vertical frame 2c. As shown in Figure 1, the cam latch receiver 43 is attached to the vertical frame 2d by screwing a screw 431 that penetrates the interior wall portion 22 of the vertical frame 2d into the reinforcing plate 251. Furthermore, as shown in Figure 3, a stay 44 is attached across the upper frame 40a of the shoji screen 4 and the upper frame 2a of the frame body 2.

[0023] The interior window 1 is an inward-opening window in which the sash 4 opens towards the interior side X2 and closes towards the exterior side X1. When the user operates the cam latch handle 42 toward the interior side X2, the sash 4 moves toward the interior side X2 around the hinge 41. This opens the inside of the frame 2. When the user operates the cam latch handle 42 toward the exterior side X1, the sash 4 moves toward the exterior side X1 around the hinge 41 and comes into contact with the door stopper member 3 that runs around the inside of the frame 2 from the interior side X2. This closes the inside of the frame 2.

[0024] Next, the sealing structure of the inner window 1 will be explained with reference to Figures 4 to 13. In the inner window 1, sealing material 300 is provided at both ends of the door stop member 3. In Figures 5 and 6, the areas where the sealing material 300 is provided are indicated by hatching.

[0025] The sealing material 300 is applied by means of coating or filling, etc., to seal the space between the exterior wall portion 32 and the interior wall portion 33 of the door stop member 3, except for the space between the interior wall portion 33 into which the protruding piece 242 of the frame 2 is inserted and the clamping piece 331. The specific type of sealing material is not limited as long as it can seal both ends of the door stop member 3 in a watertight manner, and any sealing material commonly used as a sealant in the construction industry can be used. The sealing material may be either wet or dry.

[0026] As shown in Figures 7 to 9, in the case of the upper door stop member 3a and lower door stop member 3b having a gap-filling member 34, the sealant 300 is provided to fill the gap between the inner circumferential wall portion 31, the exterior wall portion 32, and the gap-filling member 34, and the gap between the inner circumferential wall portion 31, the interior wall portion 33, the clamping piece 331, and the gap-filling member 34. As shown in Figures 10 and 11, in the case of the vertical door stop members 3c and 3d that do not have a gap-filling member 34, the sealant 300 is provided to fill the gap between the inner circumferential wall portion 31, the exterior wall portion 32, and the clamping piece 331. The dimension L2 of the sealant 300 along the length direction of the door stop member 3 is not limited in any way, but can be, for example, 10 mm to 20 mm. The sealant 300 does not necessarily have to protrude from the end face of the door stop member 3.

[0027] With the door stop members 3 attached to the inner circumferential surface 240 of the frame 2 around all four sides, as shown in Figures 5 and 6, both ends of the upper door stop member 3a and the lower door stop member 3b abut against the inner circumferential walls 24, 24 of the left and right vertical frames 2c, 2d. Furthermore, both ends of the left and right vertical door stop members 3c, 3d abut against the inner circumferential walls 31, 31 of the upper door stop member 3a and the lower door stop member 3b. All screw insertion holes 243 provided in the upper frame 2a, the lower frame 2b and the vertical frames 2c, 2d are positioned closer to the center of the door stop member 3 in the longitudinal direction relative to the sealing material 300 of the door stop member 3. In other words, all screw insertion holes 243 are located between the sealing materials 300, 300 at both ends of the door stop member 3, and all screws SC that fix the frame 2 to the opening 101 are located between the sealing materials 300, 300 at both ends of the door stop member 3.

[0028] In this state, even if shower water or the like from the interior side X2 hits the end of the door stop member 3, the sealant 300 prevents water from entering the interior of the door stop member 3, thus preventing water from entering the building structure side through the screw insertion hole 243 and along the screw SC.

[0029] The sealing material 300 is provided between the door stopper member 3 and the inner circumferential surface 240 of the frame 2, so as to seal the end face of the door stopper member 3. That is, the end face of the door stopper member 3 is sealed by the sealing material 300 across the inner circumferential wall portion 31, the outer wall portion 32, and the inner wall portion 33 of the door stopper member 3, and the inner circumferential wall portions 24 of the upper frame 2a, the lower frame 2b, and the vertical frames 2c, 2d. Therefore, it is possible to reliably prevent water from entering the interior of the door stopper member 3.

[0030] In addition to the sealant 300 as the first sealant for the door stop member 3, the inner window 1 may also be provided with a second sealant 301, as shown in Figures 12 and 13, on the inner circumferential surface 240 of the frame 2 inside the door stop member 3, surrounding the screw insertion holes 243. The sealant 301 is provided on the upper surface of the inner circumferential wall portion 24 extending between a pair of protruding pieces 241, 242 inside the door stop member 3, surrounding the screw insertion holes 243 of the upper frame 2a, lower frame 2b, and vertical frames 2c, 2d. The same sealant 301 as the sealant 300 can be used. With this, the intrusion of water into the screw insertion holes 243 can be prevented in two stages by the sealant 300 and the sealant 301. For example, even if a problem occurs in the sealing state of the sealant 300 and water intrudes into the interior from the end of the door stop member 3, it is possible to prevent water from entering the screw insertion holes 243.

[0031] Figure 14 shows an inner window 1A according to another embodiment. Parts with the same reference numerals as those in the inner window 1 described above indicate parts with the same configuration; therefore, their descriptions may be omitted below, and the above description will be used as a reference.

[0032] In Figure 14, a resin frame member 5 is provided in the opening 101 of the building frame 100. The frame member 5 is provided around all four sides of the opening 101. The interior side X2 end of the frame member 5 is fixed to the bathroom wall panel 110 by screws 51. The screws 51 are concealed by resin cover members 52.

[0033] The inner window 1A is positioned on the interior side X2 of the outer window 400, which is attached to the exterior side X1 end of the frame member 5. The frame 2 of the inner window 1A is fixed to the frame member 5 by two screws SCa and SCb. Anchor plugs are provided on the outer circumference of the screws SCa and SCb. The anchor plugs are configured such that as the screws SCa and SCb are screwed in, the tip that protrudes from the outer circumference of the frame member 5 gradually expands in diameter. Such an inner window 1A also provides the same effect as the inner window 1 described above.

[0034] The following effects are achieved according to the inner windows 1 and 1A according to the above embodiment. Specifically, the inner window 1 is installed on the indoor side X2 of an outer window 400 provided in the opening 101 of a bathroom, and comprises a frame body 2 composed of an upper frame 2a, a lower frame 2b, and a pair of vertical frames 2c and 2d, a door stop member 3 that protrudes from the inner circumferential surface 240 of the frame body 2, and a sash 4 that is housed inside the frame body 2 and opens toward the indoor side X2 and closes so as to abut against the door stop member 3 from the indoor side X2, and the frame body 2 is installed on the opening 101 The door stopper member 3 has screw insertion holes 243 through which screws SC for fixing it are inserted, and the door stopper member 3 is individually attached to the inner circumferential surfaces 240 of the upper frame 2a, lower frame 2b and the pair of vertical frames 2c, 2d, respectively, so as to cover the screw insertion holes 243 from the outdoor side X1, the indoor side X2 and the inside, and a first sealing material 300 is provided at least one end of the door stopper member 3 that is attached to at least one of the upper frame 2a, lower frame 2b and the pair of vertical frames 2c, 2d. With this, even if shower water from the indoor side X2 hits the door stopper member 3 when the sash 4 is open, the first sealing material 300 prevents water from entering the interior of the door stopper member 3. As a result, the sealing performance of the inner window 1 is improved.

[0035] In the above embodiment, the first sealing material 300 is provided between the door stopper member 3 and the frame 2 so as to block the end face of the door stopper member 3. This ensures that water does not enter the interior of the door stopper member 3.

[0036] In the above embodiment, a second sealing material 301 is provided inside the door stopper member 3 so as to surround the screw insertion hole 243 on the inner circumferential surface 240 of the frame 2. With this, the ingress of water into the screw insertion hole 243 can be prevented in two stages by the first sealing material 300 and the second sealing material 301. For example, even if a problem occurs in the sealing state of the first sealing material 300 and water ingress into the interior from the end of the door stopper member 3, the ingress of water into the screw insertion hole 243 can be prevented.

[0037] Although one embodiment of the present disclosure has been described above, the present disclosure is not limited to the embodiment described above and can be modified as appropriate. For example, gap-sealing members 34 are not necessarily provided at both ends of the upper door stop member 3a and the lower door stop member 3b, and a sealing material 300 may be provided only, similar to the vertical door stop members 3c and 3d.

[0038] The sealing material 300 does not necessarily have to be provided on all door stop members 3 attached to the upper frame 2a, lower frame 2b, and vertical frames 2c, 2d. The sealing material 300 may be provided at both ends or just one end of at least one of the door stop members 3 among the upper door stop member 3a, lower door stop member 3b, and vertical door stop members 3c, 3d.

[0039] This disclosure includes a bathroom window as described in the following embodiments.

[0040] <Aspect 1> An inner window installed on the interior side of an outer window that is provided in the opening of a bathroom, A frame consisting of an upper frame, a lower frame, and a pair of vertical frames, A door stopper member is provided protruding from the inner circumferential surface of the frame, The frame comprises a sliding door that is housed inside the frame and opens toward the interior and closes toward the door stop member from the interior side, The frame has screw insertion holes through which screws for fixing it to the opening are inserted. The door stopper member is individually attached to the inner circumferential surface of the upper frame, the lower frame, and the pair of vertical frames, respectively, so as to cover the screw insertion hole from the outside, inside, and inside. An interior window, wherein a first sealing material is provided at at least one end of the door stop member, which is attached to at least one of the upper frame, the lower frame, and the pair of vertical frames.

[0041] <Aspect 2> The interior window according to embodiment 1, wherein the first sealing material is provided between the door stopper and the frame so as to close the end face of the door stopper.

[0042] <Aspect 3> An inner window according to embodiment 1 or 2, wherein a second sealing material is provided inside the door stopper member so as to surround the screw insertion hole on the inner circumferential surface of the frame. [Explanation of Symbols]

[0043] 1 Inner window, 2 Frame, 2a Upper frame, 2b Lower frame, 2c, 2d Vertical frames, 240 Inner surface, 243 Screw insertion hole, 3 Door stopper, 4 Sash, 101 Opening, 300 First sealant, 301 Second sealant, 400 Outer window, SC Screw

Claims

1. An inner window installed on the interior side of an outer window that is provided in the opening of a bathroom, A frame consisting of an upper frame, a lower frame, and a pair of vertical frames, A door stopper member is provided protruding from the inner circumferential surface of the frame, The frame comprises a sliding door that is housed inside the frame and opens toward the interior and closes toward the door stop member from the interior side, The frame has screw insertion holes through which screws for fixing it to the opening are inserted. The door stopper member is individually attached to the inner circumferential surface of the upper frame, the lower frame, and the pair of vertical frames, respectively, so as to cover the screw insertion hole from the outside, inside, and inside. An interior window, wherein a first sealing material is provided at at least one end of the door stop member, which is attached to at least one of the upper frame, the lower frame, and the pair of vertical frames.

2. The inner window according to claim 1, wherein the first sealing material is provided between the door stop member and the frame body so as to close the end face of the door stop member.

3. The interior window according to claim 1 or 2, wherein a second sealing material is provided inside the door stopper member so as to surround the screw insertion hole on the inner circumferential surface of the frame.

Images