Doors and fittings

The window fitting design with interior and exterior rails, a stopper member, and a water-stopping guide rib addresses the issue of water dripping onto the inner peripheral side, ensuring the communication hole is hidden and water is guided away, thus maintaining appearance quality.

JP2026094662APending Publication Date: 2026-06-10YKK AP INC

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
YKK AP INC
Filing Date
2024-11-29
Publication Date
2026-06-10

AI Technical Summary

Technical Problem

Existing window fittings with communication holes in the upper frame risk water dripping onto the inner peripheral side, compromising appearance quality due to visibility and potential water accumulation.

Method used

The upper frame is equipped with an interior and exterior rail, a stopper member with a rail cover and hole cover portion, and a water-stopping guide rib to guide water away from the interior side, preventing visibility and accumulation.

Benefits of technology

The solution effectively hides the communication hole and guides water away, maintaining appearance quality by preventing water from being seen from the indoor side and reducing the risk of accumulation.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 2026094662000001_ABST
    Figure 2026094662000001_ABST
Patent Text Reader

Abstract

A communication hole is provided in the upper frame without compromising the external appearance quality. [Solution] An interior sash 20A is slidably arranged along an interior upper rail 36, and the upper frame 11 is provided with a stopper member 50 that limits the opening position of the interior sash 20A. The upper frame 11 is provided with a communication hole 11a in a portion that is on the exterior side of the interior upper rail 36, and the stopper member 50 has a rail cover portion 51 that protrudes inward from the inner circumferential surface of the vertical frame 13 and is arranged to cover the end of the interior upper rail 36 and the end of the interior vertical rail 36, respectively, and a hole cover portion 52 that extends from the rail cover portion 51 to cover the communication hole 11a, and the upper surface of the hole cover portion 52 facing the upper frame 11 is provided with a water-stopping guide rib 60 that prevents water from entering the interior side of the exterior surface of the interior vertical rail 36 when water drips from the communication hole 11a.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention relates to a fitting in which an inner sash on the indoor side is slidably arranged left and right with respect to a frame body, such as a single-slide window or a double-slide window.

Background Art

[0002] In fittings in which an inner sash is slidably arranged with respect to a frame body, such as a single-slide window or a double-slide window, there are some that have a stopper member at the end of a rail provided on the upper frame. The stopper member is for restricting the open position of the inner sash and is provided so as to project from the vertical frame toward the inner peripheral side. In this type of fitting, even when the inner sash is opened, since the vertical frame abuts against the stopper member, it becomes possible to prevent a situation where the inner sash collides with the vertical frame (for example, see Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in some cases, a communication hole is provided in the lower surface on the inner peripheral side of the upper frame of the frame body. In a fitting having this communication hole, for example, it is possible to prevent a situation where a pressure difference occurs between the inner peripheral side and the outer peripheral side of the frame body. Further, even if water such as dew condensation accumulates on the outer peripheral side of the upper frame, it can be discharged to the outside through the communication hole. Furthermore, in the above-described fitting, it is possible to provide a hole cover portion so as to cover the communication hole, and configure it so that the communication hole and water dripping from the communication hole are not visible. However, when water dripping from the communication hole is stored in the stopper member, there is a concern that it may drip along a visible portion such as an expected surface on the inner peripheral side of the vertical frame, and it is not necessarily preferable in terms of appearance quality.

[0005] In view of the above circumstances, the present invention aims to provide a joinery that can have a communication hole in the upper frame without impairing the appearance quality. [Means for solving the problem]

[0006] To achieve the above objective, the joinery according to the present invention is characterized in that the upper frame is provided with an upper rail on the interior side and an upper rail on the exterior side, and the vertical frame is provided with an interior side vertical rail, a sliding door is slidably arranged along the upper rail on the interior side, and the upper frame is provided with a stopper member that limits the opening position of the sliding door, the upper frame is provided with a communication hole in the portion that is on the exterior side of the upper rail on the interior side, the stopper member has a rail cover portion that protrudes inward from the inner surface of the vertical frame and is arranged to cover the end of the upper rail on the interior side and the end of the vertical rail on the interior side, respectively, and a hole cover portion that extends from the rail cover portion to cover the communication hole, and the hole cover portion is provided with a water-stopping guide rib on the opposing surface facing the upper frame that prevents water from entering the interior side of the surface of the vertical rail on the exterior side when water is dripped from the communication hole. [Effects of the Invention]

[0007] According to the present invention, the stopper member is provided with a hole cover portion that covers the communication hole, and a water-stopping guide rib is provided on the hole cover portion. Therefore, even if water drips from the communication hole onto the hole cover portion, the water-stopping guide rib guides the water to the outside of the surface of the vertical rail on the indoor side that is located on the outdoor side. As a result, there is no risk of the communication hole or the water dripping from the communication hole being directly visible, and the water overflowing from the stopper member becomes difficult to see from the indoor side, thus preventing damage to the appearance quality. [Brief explanation of the drawing]

[0008] [Figure 1] This is a view of a door or window, which is Embodiment 1 of the present invention, as seen from the interior side. [Figure 2]Figure 1 is a vertical cross-sectional view of the joinery shown. [Figure 3] Figure 1 is a cross-sectional view of the joinery shown. [Figure 4] Figure 1 shows the joinery installed in a building, and is a vertical cross-section with the outer sash side cut away. [Figure 5] Figure 1 shows the frame applied to the joinery shown in Figure 1, where (a) is an end view of the top frame and vertical frame, and (b) is an end view of the bottom frame. [Figure 6] Figure 1 shows the main frame components and stopper members applied to the joinery shown, and is an exploded perspective view of the inner corner between the upper frame and the vertical frame, as seen from the interior side. [Figure 7] Figure 6 is a perspective view showing the stopper member attached. [Figure 8] Figure 1 shows the main frame components and stopper members applied to the joinery shown in Figure 1, and is a perspective view of the inner corner between the upper frame and the vertical frame as seen from the outside. [Figure 9] This is a cross-sectional view of the main parts showing the vertical frame and stopper member of the joinery shown in Figure 1. [Figure 10] Figure 1 shows a stopper member applicable to the joinery shown in Figure 1, where (a) is a perspective view from the outer circumference and (b) is a perspective view from the inner circumference. [Figure 11] Figure 1 shows the stopper member applicable to the joinery shown in Figure 1, where (a) is an inner side view, (b) is a top view, (c) is an outer side view, and (d) is a bottom view. [Figure 12] This is a cross-sectional view of the main parts showing the vertical frame and stopper member of a building component according to Embodiment 2 of the present invention. [Figure 13] Figure 12 shows a stopper member applicable to the joinery shown in the figure; (a) is a perspective view from the outer circumference, and (b) is a perspective view from the inner circumference. [Figure 14] Figure 12 shows the stopper member applicable to the joinery shown, with (a) being an inner side view, (b) a top view, (c) an outer side view, and (d) a bottom view. [Modes for carrying out the invention]

[0009] The following describes in detail preferred embodiments of the joinery according to the present invention with reference to the attached drawings. For convenience, the terms "depth direction" and "face direction" may be used below. The depth direction is the direction along the depth of the joinery, as indicated by arrow A in the figure. The surface along the depth direction may be referred to as the depth surface. The face direction is the direction along the vertical direction perpendicular to the depth direction, in the case of a frame that extends horizontally, such as a bottom frame. In the case of a frame that extends vertically, such as a vertical frame, the face direction is the direction along the horizontal direction perpendicular to the depth direction. The surface along the face direction may be referred to as the face surface.

[0010] (Embodiment 1) Figures 1 to 4 show a joinery according to Embodiment 1 of the present invention. The joinery illustrated here is called a sliding window, comprising a frame 10 and an inner sash 20A and an outer sash 20B that are slidably mounted on the frame 10 to the left and right. The frame 10 is constructed by assembling an upper frame 11, a lower frame 12, and left and right vertical frames 13 and 14 around its perimeter. The inner sash 20A and outer sash 20B are constructed by attaching an upper frame 22, a lower frame 23, and left and right vertical frames 24 and 25 to the perimeter of a rectangular panel 21 made of double-glazed glass or the like. These inner sashes 20A and outer sashes 20B have approximately the same dimensions along the left and right sides, and are sized so that the frame 10 can be closed when the meeting vertical frames 25 are placed side by side in the depth direction. In this embodiment 1, an example of a door and window is shown in which, when the inner sash 20A and outer sash 20B are positioned in the closed position, the inner sash 20A is positioned on the right side when viewed from the interior, and the outer sash 20B is positioned on the left side when viewed from the interior. The upper frame 11, lower frame 12, vertical frames 13, 14 that make up the frame 10, and the upper frame 22, lower frame 23, vertical frame 24, 25 that make up the sashes 20A and 20B are all extruded profiles molded from resin, and are configured to have a substantially uniform cross-sectional shape along their entire length.

[0011] The upper frame 11 and the left and right vertical frames 13 and 14 are configured to have substantially the same cross-sectional shape, and as shown in Figures 2 to 4 and Figure 5(a), they have a frame body 31, a visible mounting wall 32, an outer visible wall 33, an inner visible wall 34, a recessed mounting wall 35, and two rows of rails 36 and 37. The frame body 31 is hollow and has a substantially rectangular shape. The inner surface of the frame body 31 is formed to be flat along the depth direction. The outer surface of the frame body 31 extends from the edge located on the outdoor side toward the indoor side along the depth direction, then extends toward the inner side in the visible direction at a position more than approximately 3 / 4 of the way, and further extends toward the indoor side in the depth direction. The hollow interior of the frame body 31 is divided into multiple sections by ribs 31a along the visible direction. The visible mounting wall portion 32 extends in the visible direction from the portion that extends in the visible direction on the outer circumference side of the frame body 31. The outer visible wall portion 33 extends in the visible direction from the edge located on the outdoor side of the frame body 31 toward the inner circumference, and the inner visible wall portion 34 extends in the visible direction from the edge located on the indoor side of the frame body 31 toward the inner circumference. The extension dimensions of the outer visible wall portion 33 and the inner visible wall portion 34 from the frame body 31 are approximately equal to each other. The inner visible wall portion 34 is configured to be hollow. The outer visible wall portion 33 has a hollow portion only at its base end. This outer visible wall portion 33 functions as the upper and left and right screen door rails. The depth mounting wall portion 35 extends in the depth direction toward the interior from the visible surface of the inner visible wall portion 34 that faces the interior. The two rows of rails 36 and 37 protrude inward from the inner circumference side of the frame body 31, and each is hollow and roughly rectangular in shape. The extension dimension of the rails 36 and 37 from the frame body 31 is approximately equal to the outer visible wall portion 33. The distance between the indoor rail 36 and the inner visible wall portion 34, and the distance between the outdoor rail 37 and the outer visible wall portion 33 are smaller than the distance between the two rows of rails 36 and 37. The ribs 31a described above are provided at positions corresponding to each of the rails 36 and 37. When distinguishing between the rails 36 and 37 of the upper frame 11 and the rails 36 and 37 of the vertical frames 13 and 14, the former will be referred to as the upper rails 36 and 37, and the latter as the vertical rails 36 and 37.

[0012] As shown in Figures 2, 4, and 5(b), the lower frame 12 has a lower frame body 41, a lower visible mounting wall 42, a lower outer visible wall 43, a lower inner visible wall 44, a lower inner circumference mounting wall 45, a lower outer circumference mounting wall 46, and two rows of lower rails 47 and 48. The lower frame body 41 has substantially the same cross-sectional shape as the frame body 31 of the upper frame 11. A drain valve 49 is provided on the visible surface of the lower frame body 41 that faces outwards. The lower visible mounting wall 42 extends outwards in the visible direction from the portion that extends outwards on the outer circumference side of the lower frame body 41. The lower outer visible wall 43 extends outwards in the visible direction from the edge located on the outer circumference side of the lower frame body 41, and the lower inner visible wall 44 extends outwards in the visible direction from the edge located on the indoor side of the lower frame body 41. The extension dimensions of the lower outer visible wall portion 43 and the lower inner visible wall portion 44 from the lower frame body 41 are approximately equal to each other. The lower outer visible wall portion 43 has a longer hollow portion than the outer visible wall portion 33 of the upper frame 11. This lower outer visible wall portion 43 functions as the lower screen door rail. The lower inner visible wall portion 44 has approximately the same shape as the inner visible wall portion 34 of the upper frame 11. The lower inner perimeter mounting wall portion 45 extends approximately horizontally into the room from the inner perimeter side edge of the lower inner visible wall portion 44. The lower outer perimeter mounting wall portion 46 extends into the room from the outer perimeter side edge of the lower frame body 41 that is located inside the room. The two rows of lower rails 47 and 48 are hollow in shape, protruding inward from the inner circumference side of the lower frame body 41, and are positioned to correspond to the two rows of upper rails 36 and 37 of the upper frame 11. Track members 47a and 48a are attached to the inner circumference ends of the lower rails 47 and 48 for the rollers 26 provided on the lower frame 23 of the sliding doors 20A and 20B to roll on.

[0013] As shown in FIGS. 1, 4, and 9, the upper frame 11, vertical frames 13, 14, and lower frame 12 are joined to each other through substantially 45° joint surfaces provided at their respective ends to form the frame body 10. The frame body 10 abuts the finding attachment wall portion 32 and the lower finding attachment wall portion 42 against the outer surface of the housing B, and fixing members S such as screws are provided on the housing B through the finding attachment wall portion 32 and the lower finding attachment wall portion 42. At the same time, the frame body 31 and the lower outer peripheral prospective attachment wall portion 46 are provided with fixing members S such as screws on the housing B, whereby it is attached to the housing B. The prospective attachment wall portion 35 and the lower inner peripheral prospective attachment wall portion 45 are attached to the picture frame G and the floor material F by providing fixing members S such as screws in a state of abutting against the surfaces on the inner peripheral side of the picture frame G and the floor material F. Although not shown in the figures, the hollow portions of the frame body 31 provided in the upper frame 11, the hollow portions of the frame body 31 provided in the vertical frames 13, 14, and the hollow portion of the lower frame body 41 are in a state of communicating with each other. The two rows of upper rails 36, 37 provided in the upper frame 11 and the two rows of lower rails 47, 48 provided in the lower frame 12 are also connected to the two rows of vertical rails 36, 37 provided in the vertical frames 13, 14, respectively.

[0014] As shown in FIGS. 2, 4, 6 to 9, a communication hole 11a is provided at an end portion of the upper frame 11 of the frame body 10 close to the vertical frame (hereinafter simply referred to as the left vertical frame 13 when distinguishing) located on the left side when viewed from the indoor side. At the same time, a stopper member 50 formed of resin is disposed at a portion where the left vertical frame 13 forms an inner corner. The communication hole 11a is provided at a position between the two rows of upper rails 36, 37 on the prospective surface on the inner peripheral side of the frame body 31, and opens the hollow portion of the frame body 31 to the inner peripheral side.

[0015] The stopper member 50 is for restricting the open position of the internal blind 20A. As shown in FIGS. 10 and 11, it has a rail cover portion 51, a hole cover portion 52, and an inner peripheral vertical wall portion 53. The rail cover portion 51 covers the left end portion of the upper rail on the indoor side (hereinafter referred to as the inner upper rail 36 when distinguishing) and the upper end portion of the vertical rail on the indoor side (hereinafter referred to as the inner vertical rail 36 when distinguishing). In the first embodiment, a rail cover portion 51 having a bottom wall portion 51a, an inner side wall portion 51b, and an outer side wall portion 51c is applied. The bottom wall portion 51a faces the inner peripheral surface of the inner upper rail 36, has a dimension along the prospective direction larger than that of the inner upper rail 36, and is curved so as to be slightly convex downward. A vertical rail accommodation groove 51d in which the inner vertical rail 36 can be accommodated is provided at the edge on the outer peripheral side of the bottom wall portion 51a. The inner side wall portion 51b extends upward from the indoor side edge portion of the bottom wall portion 51a, and the outer side wall portion 51c extends upward from the outdoor side edge portion of the bottom wall portion 51a. The inner side wall portion 51b has a larger extension length than the outer side wall portion 51c.

[0016] The hole cover portion 52 covers the above-described communication hole 11a, and extends obliquely upward so as to gradually become upward from the upper edge portion of the outer side wall portion 51c toward the outdoor side. An outer vertical wall portion 54 is provided at the extending edge portion of the hole cover portion 52 so as to face upward. The upper edge of the outer vertical wall portion 54 is set to be approximately the same height as the upper edge of the inner side wall portion 51b.

[0017] The inner peripheral vertical wall portion 53 extends upward from the inner peripheral side edge portion of the bottom wall portion 51a. The inner peripheral side edge portion of the inner side wall portion 51b, the inner peripheral side edge portion of the outer side wall portion 51c, and the inner peripheral side edge portion of the hole cover portion 52 are each connected to the inner peripheral vertical wall portion 53. The upper edge of the inner peripheral vertical wall portion 53 is lower than the upper edge of the inner side wall portion 51b. An upper rail accommodation groove 53a in which the inner upper rail 36 can be accommodated is provided at a position corresponding to the vertical rail accommodation groove 51d of the bottom wall portion 51a in the inner peripheral vertical wall portion 53. That is, when the inner upper rail 36 is arranged in the upper rail accommodation groove 53a and the inner vertical rail 36 is arranged in the vertical rail accommodation groove 51d, the inner peripheral vertical wall portion 53 is arranged orthogonally to the longitudinal direction of the upper frame 11.

[0018] The stopper member 50 described above is provided with a partition wall 55, an upper frame fitting projection 56, a peripheral wall 57, two rail engaging pieces (side wall portions) 58, two vertical guide ribs 59, and a water-stopping guide rib 60. The partition wall 55 extends along the depth direction to divide the space enclosed by the bottom wall 51a, the outer side wall 51c, and the inner side wall 51b into an inner circumferential side and an outer circumferential side. The upper frame fitting projection 56 protrudes upward from the upper surface of the bottom wall 51a, between the partition wall 55 and the inner vertical wall 53, and fits into a notch 36a provided at the end of the inner upper rail 36. The peripheral wall 57 protrudes upward from the upper surface of the bottom wall 51a and is provided to be continuous across the leading edge and both side edges of the vertical rail housing groove 51d. The protruding height of the peripheral wall 57 is smaller than that of the outer side wall portion 51c and the partition wall portion 55. The two rail engaging pieces 58 extend upward from both side edges of the vertical rail housing groove 51d, facing each other, and are continuous with the peripheral wall 57. As is clear from the figure, the outer peripheral edges of the rail engaging pieces 58 each terminate on the inner side of the outer peripheral edge of the bottom wall portion 51a. The protruding height of the rail engaging pieces 58 is approximately the same as that of the inner side wall portion 51b. The upper ends of the rail engaging pieces 58 are provided with engaging claws 58a on opposing portions. These engaging claws 58a of the rail engaging pieces 58 engage with the projection 36b provided on the inner upper rail 36, thereby maintaining the stopper member 50 in a mounted state on the upper frame 11. The two vertical guide ribs 59 are provided between the rail engaging piece 58 and the outer side wall portion 51c and between the rail engaging piece 58 and the inner side wall portion 51b, and extend upward along the depth direction. More specifically, the vertical guide ribs 59 are provided at a position that is on the outer periphery side of the protruding end of the inner vertical rail 36 when the inner vertical rail 36 is placed in the vertical rail housing groove 51d. The vertical guide rib 59 provided on the interior side has an extension dimension that is larger than the peripheral wall 57 and smaller than the outer side wall portion 51c. The vertical guide rib 59 provided on the exterior side has an extension dimension that is approximately the same as the vertical guide rib 59 provided on the interior side in the interior half, and the exterior half is set to be above the upper surface of the outer side wall portion 51c.The water-stopping guide rib 60 extends in a direction intersecting the longitudinal direction of the upper frame 11 so as to divide the upper surface of the hole cover portion 52 into an inner circumference side and an outer circumference side, and its indoor side edge is connected to a vertical guide rib 59 provided on the outdoor side. In this embodiment 1, the water-stopping guide rib 60 is composed of an inner guide rib portion 60a that extends outward from the upper end of the vertical guide rib 59 in a direction perpendicular to the longitudinal direction of the upper frame 11, and an outer guide rib portion 60b that slopes from the outdoor side edge of the inner guide rib portion 60a so as to gradually become inward toward the outside. As is clear from Figure 9, the water-stopping guide rib 60 is provided so as to be located on the inner circumference side of the communication hole 11a provided in the upper frame 11 when the inner vertical rail 36 is placed in the vertical rail housing groove 51d. Furthermore, even when the inner vertical rail 36 is placed in the vertical rail housing groove 51d, the bottom wall portion 51a, the inner side wall portion 51b, and the outer side wall portion 51c are all configured to ensure a gap between them and the inner circumferential surface of the vertical frames 13 and 14.

[0019] In the joinery configured as described above, the lower frame body 41 of the lower frame 12, which is equipped with a drain valve 49, and the frame bodies 31 of the left and right vertical frames 13 and 14, as well as the frame body 31 of the upper frame 11, are all connected to each other through their respective hollow sections. Therefore, air that enters the hollow section of the lower frame body 41 via the drain valve 49 is discharged to the outside through the communication hole 11a of the upper frame 11. As a result, there is no risk of the watertightness of the joinery being compromised due to air entering the hollow section. Moreover, since the communication hole 11a is covered by the hole cover portion 52 of the stopper member 50, it is difficult to see, and there is no concern that the appearance quality will be compromised.

[0020] Furthermore, even if condensation or other water forms in the hollow part of the frame body 31, such as the upper frame 11, it can be discharged to the outside through the communication hole 11a, preventing water from accumulating in the hollow part of the frame body 31. In this case as well, since the communication hole 11a is covered by the hole cover portion 52 of the stopper member 50, it is difficult to visually observe water dripping from the communication hole 11a, and there is no concern that the appearance quality will be impaired. Moreover, the water received by the hole cover portion 52 is guided by the water-stopping guide rib 60 to the outer circumference side of the protruding end of the inner vertical rail 36. That is, water that drips onto the hole cover portion 52 is guided to the indoor side according to the slope. At this time, since the water-stopping guide rib 60 is provided on the inner circumference side of the communication hole 11a, water does not reach the inner circumference side beyond it, and as shown by the arrow in Figure 9, it is discharged to the rail cover portion 51 only from the outer circumference side of the water-stopping guide rib 60. Furthermore, water dripping from the hole cover portion 52 reaches the upper surface of the bottom wall portion 51a of the rail cover portion 51, and is prevented from moving inward by the vertical guide rib 59 and rail engaging piece 58 provided on the exterior side. As a result, it is only discharged from the stopper member 50 after passing through the outer peripheral portion of the vertical rail housing groove 51d. With this fixture, it becomes difficult to see from the interior side that water is dripping down the inner vertical rail 36, and there is no risk of misunderstanding that water has entered the interior.

[0021] (Embodiment 2) Figure 12 shows a joinery according to Embodiment 2 of the present invention. The joinery illustrated here is a sliding window, similar to Embodiment 1, and includes an inner sash 20A and an outer sash 20B that are slidably arranged to the left and right relative to a frame 10. The only difference from Embodiment 1 is the configuration of the exterior-side vertical guide rib 159 and the water-stopping guide rib 160 provided on the stopper member. The following description will mainly focus on the configurations that differ from Embodiment 1, and the same reference numerals will be used for configurations that are the same as in Embodiment 1, and their detailed descriptions will be omitted.

[0022] In other words, the two vertical guide ribs 159 provided on the stopper member 150 of Embodiment 2 are both set so that their vertical extension is greater than the peripheral wall 57 and smaller than the outer side wall portion 51c. The vertical guide ribs 159 are provided so as to extend upward along the depth direction between the rail engaging piece 58 and the outer side wall portion 51c and between the rail engaging piece 58 and the inner side wall portion 51b, and when the inner vertical rail 36 is placed in the vertical rail housing groove 51d, the vertical guide ribs 159 are provided at a position that is on the outer circumference side of the protruding end of the inner vertical rail 36, just as in Embodiment 1. The water-stopping guide rib 160 protrudes upward from the edge located on the indoor side of the upper surface of the hole cover portion 52, and its inner peripheral edge is connected to the inner vertical wall portion 53. The outer peripheral edge of the water-stopping guide rib 160 terminates at a position corresponding to the vertical guide rib 159.

[0023] In the joinery configured as described above, the lower frame body 41 of the lower frame 12, which is equipped with a drain valve 49, and the frame bodies 31 of the left and right vertical frames 13 and 14, and the frame body 31 of the upper frame 11 are all connected to each other through their respective hollow sections. Therefore, air that enters the hollow section of the lower frame body 41 via the drain valve 49 is discharged to the outside through the communication hole 11a of the upper frame 11. As a result, there is no risk of the watertightness of the joinery being compromised due to air entering the hollow section. Moreover, since the communication hole 11a is covered by the hole cover portion 52 of the stopper member 150, it is difficult to see, and there is no concern that the appearance quality will be compromised.

[0024] Furthermore, even if water such as condensation forms in the hollow part of the frame body 31, such as the upper frame 11, it can be discharged to the outside through the communication hole 11a, preventing water from accumulating in the hollow part of the frame body 31. In this case as well, since the communication hole 11a is covered by the hole cover portion 52 of the stopper member 150, it is difficult to visually observe water dripping from the communication hole 11a, and there is no concern that the appearance quality will be impaired. Moreover, the water received by the hole cover portion 52 is guided by the water-stopping guide rib 160 to the outer circumference side of the protruding end of the inner vertical rail 36. That is, water that drips onto the hole cover portion 52 is guided to the indoor side according to the slope. In this case, in the stopper member 150 of Embodiment 2, the water-stopping guide rib 160 is provided on the indoor side edge of the hole cover portion 52 at a portion located on the inner circumference side of the vertical guide rib 159, and the inner circumference end of the water-stopping guide rib 160 is connected to the inner circumference vertical wall portion 53. Therefore, as shown by the arrows in Figure 12, the water received on the upper surface of the hole cover portion 52 is discharged to the rail cover portion 51 only from the outer side of the outer peripheral end of the water-stopping guide rib 160. Furthermore, after the water dripping from the hole cover portion 52 reaches the upper surface of the bottom wall portion 51a of the rail cover portion 51, its movement toward the inner peripheral side is prevented by the vertical guide rib 159 and the rail engaging piece 58 provided on the outdoor side. As a result, the water is discharged from the stopper member 150 only after passing through the outer peripheral portion of the vertical rail housing groove 51d. With this fixture, it becomes difficult to see from the indoor side the situation of water dripping down the inner vertical rail 36, and there is no risk of misunderstanding that water has entered the indoor side.

[0025] In the embodiments described above, sliding windows are used as examples, but the present invention is not limited to this and can also be applied to single-sliding windows configured so that only the inner sash 20A slides. Furthermore, although the upper frame 11 is shown as having a hollow portion in the frame body 31, it is not necessary for it to have a hollow portion. In addition, although a peripheral wall 57 is provided for the vertical rail housing groove 51d of the stopper members 50 and 150, it is not necessary for the peripheral wall 57 to be provided. The outer vertical wall portion 54, partition wall portion 55, and upper frame fitting projection portion 56 are also not necessarily required. As for the rail engaging piece 58, it is not necessary to provide it if the stopper members 50 and 150 can be held in place on the upper frame 11 by other configurations. Furthermore, although the hole cover portion 52 is provided over the entire width of the rail cover portion 51, it is sufficient if it has a width that covers at least the communication hole 11a.

[0026] As described above, the joinery according to the present invention is characterized in that the upper frame is equipped with an upper rail on the interior side and an upper rail on the exterior side, and the vertical frame is equipped with an interior side vertical rail, and a sliding door is slidably arranged along the upper rail on the interior side, and the upper frame is provided with a stopper member that limits the opening position of the sliding door, and the upper frame is provided with a communication hole in the portion that is on the exterior side of the upper rail on the interior side, and the stopper member is characterized in that it has a rail cover portion that protrudes inward from the inner surface of the vertical frame and is arranged to cover the end of the upper rail on the interior side and the end of the vertical rail on the interior side, respectively, and a hole cover portion that extends from the rail cover portion to cover the communication hole, and the hole cover portion is provided with a water-stopping guide rib on the opposing surface facing the upper frame that prevents water from entering the interior side of the surface of the vertical rail on the exterior side when water is dripped from the communication hole. According to this invention, the stopper member is provided with a hole cover portion that covers the communication hole, and a water-stopping guide rib is provided on the hole cover portion. Therefore, even if water drips from the communication hole onto the hole cover portion, the water-stopping guide rib guides the water to the outside of the surface of the vertical rail on the indoor side that is located on the outdoor side. As a result, there is no risk of the communication hole or the water dripping from the communication hole being directly visible, and the water overflowing from the stopper member becomes difficult to see from the indoor side, thus preventing damage to the appearance quality.

[0027] Furthermore, the present invention is characterized in that, in the above-described joinery, the water-stopping guide rib extends in a direction intersecting the longitudinal direction of the upper frame at a position on the inner circumference side of the communication hole with respect to the vertical frame, and the interior side edge is located on the outer circumference side of the protruding end of the interior side vertical rail. According to this invention, it is possible to prevent water from reaching the inner circumference beyond the water-stopping guide ribs.

[0028] Furthermore, the present invention is characterized in that, in the above-described joinery, the hole cover portion extends outward from the entire width of the portion of the rail cover portion located on the exterior side, the inner circumferential edge of the hole cover portion is provided with an inner circumferential vertical wall that protrudes toward the upper frame, and the water-stopping guide rib extends along the longitudinal side of the upper frame at a position on the interior side of the communication hole in the hole cover portion, the inner circumferential edge is connected to the inner circumferential vertical wall, and the outer circumferential edge is located on the outer side of the protruding end of the interior vertical rail. According to this invention, since more water can be stored on the upper surface of the hole cover, even if a relatively large amount of water is discharged from the communication hole, it is possible to prevent water from dripping from unintended parts.

[0029] Furthermore, the present invention is characterized in that, in the above-described joinery, the rail cover portion is provided with a vertical guide rib that is located on the exterior side of the interior vertical rail and extends in the depth direction along the longitudinal side of the vertical frame on the outer periphery side of the protruding end of the interior vertical rail. According to this invention, water discharged from the hole cover is not stored in the rail cover but is discharged to the outside of the stopper member, thus preventing water from dripping from unintended areas.

[0030] Furthermore, the present invention is characterized in that, in the above-described joinery, the water-stopping guide rib extends in a direction intersecting the longitudinal direction of the upper frame at a position on the inner circumference side of the communication hole with respect to the vertical frame, the indoor side edge is located on the outer circumference side of the protruding end of the indoor side vertical rail, and the upper end of the vertical guide rib is connected to the indoor side edge of the water-stopping guide rib. According to this invention, water discharged from the hole cover is not stored in the rail cover but is discharged to the outside of the stopper member, thus preventing water from dripping from unintended areas.

[0031] Furthermore, the present invention is characterized in that, in the above-described joinery, the hole cover portion is inclined to gradually decrease in height toward the interior of the room. According to this invention, water discharged from the communication hole to the hole cover can be discharged to the rail cover without being stored.

[0032] Furthermore, the present invention is characterized in that, in the above-described joinery, the bottom wall of the rail cover portion is provided with a vertical rail housing groove in which the interior-side vertical rail is arranged, and the side walls of both side edges of the vertical rail housing groove protrude upward except for the portion corresponding to the base end of the interior-side vertical rail, and the interior-side edge of the vertical guide rib is connected to the side walls. According to this invention, water discharged to the rail cover is discharged to the outside only from the base end of the vertical rail on the indoor side. [Explanation of symbols]

[0033] 11 Upper frame, 11a Communication hole, 13 Left vertical frame, 20A Inner sash, 20B Outer sash, 31 Frame body, 36, 37 Rails, 49 Drain valve, 50, 150 Stopper member, 51 Rail cover section, 51a Bottom wall section, 51b Inner side wall section, 51c Outer side wall section, 51d Vertical rail housing groove, 52 Hole cover section, 53 Inner circumferential vertical wall section, 53a Upper rail housing groove, 54 Outer vertical wall section, 55 Partition wall section, 56 Upper frame fitting projection, 57 Circumferential wall, 58 Rail engaging piece, 58a Engaging claw, 59, 159 Vertical guide rib, 60, 160 Water-stopping guide rib, 60a Inner guide rib section, 60b Outer guide rib section

Claims

1. A door or window fitting comprising an upper frame with an upper rail on the interior side and an upper rail on the exterior side, a vertical frame with an interior side vertical rail, a sliding door being disposed along the interior side upper rail, and a stopper member provided on the upper frame to limit the opening position of the sliding door, The upper frame is provided with a communication hole in the portion that is on the outdoor side of the indoor upper rail. The stopper member has a rail cover portion that protrudes inward from the inner circumference side of the vertical frame and is arranged to cover the end of the upper rail on the indoor side and the end of the vertical rail on the indoor side, respectively, and a hole cover portion that extends from the rail cover portion to cover the communication hole. The door and window fitting is characterized in that, in the hole cover portion, the opposing surface facing the upper frame is provided with a water-stopping guide rib that prevents water from entering the interior side of the vertical rail on the interior side, beyond the surface on the exterior side, when water is dripped from the communication hole.

2. The water-stopping guide rib extends in a direction intersecting the longitudinal direction of the upper frame at a position on the inner circumference side of the communication hole with respect to the vertical frame, and the indoor side edge is located on the outer circumference side of the protruding end of the indoor side vertical rail, as described in claim 1.

3. The hole cover portion extends outward from the entire width of the portion of the rail cover portion located on the outdoor side, The inner circumferential edge of the hole cover portion is provided with an inner circumferential vertical wall that protrudes toward the upper frame. The water-stopping guide rib extends along the longitudinal side of the upper frame at a position on the interior side of the communication hole in the hole cover portion, the inner circumferential edge is connected to the inner circumferential vertical wall, and the outer circumferential edge is located on the outer side of the protruding end of the interior vertical rail, as described in claim 1.

4. The joinery according to claim 2 or 3, characterized in that the rail cover portion is provided with vertical guide ribs that are located on the exterior side of the interior vertical rail and extend in the depth direction along the longitudinal side of the vertical frame on the outer periphery side of the protruding end of the interior vertical rail.

5. The water-stopping guide rib extends in a direction intersecting the longitudinal direction of the upper frame at a position on the inner circumference side of the communication hole with respect to the vertical frame, and its indoor side edge is located on the outer circumference side of the protruding end of the indoor side vertical rail. The joinery according to claim 4, characterized in that the upper end of the vertical guide rib is connected to the indoor side edge of the water-stopping guide rib.

6. The door and window fitting according to claim 1, characterized in that the hole cover portion is inclined to gradually become lower toward the interior of the room.

7. The bottom wall of the rail cover portion is provided with a vertical rail housing groove in which the vertical rail on the interior side is arranged. On both side edges of the vertical rail housing groove, the lateral wall portions protrude upward, except for the portion corresponding to the base end of the vertical rail on the interior side. The joinery according to claim 4, characterized in that the interior edge of the vertical guide rib is connected to the lateral wall.