Fitting

Abstract

To achieve improvement in a heat insulation property and a dew-condensation proof property.SOLUTION: In fittings, at a frame body 10 which includes a lower frame 12 including a metal frame part 32 and a resin frame part 33, a sash 20 is disposed in an openable / closable manner, and a lower rail 22 for constituting the sash 20 includes a metal rail part 43 and a resin rail part 44. At the metal frame part 32, a seal member S1 is provided for sealing a space between each other in the case where the sash 20 is arranged in a closed position with respect to the frame body 10, and in the case where the sash 20 is arranged in the closed position with respect to the frame body 10, at the portion surrounded by the lower frame 12, the lower rail 22 and the seal member S1, a groove part 50 is provided. The groove part 50 opens in an indoor space between the resin frame part 33 and the resin rail part 44, and open width is constituted to be large with respect to a depth dimension.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to building materials. [Background technology]

[0002] In fittings that take thermal insulation into consideration, the frame material that makes up the frame body and the stile material that makes up the shoji screen each have a portion molded from metal and a portion molded from resin. Also, in this type of fittings, when the shoji screen is placed in the closed position, the taiting material and fin portions attached to the frame material such as the sill are brought into contact with the facing surface of the stile material such as the lower stile, thereby forming an airtight space between the frame material and the stile material, further improving thermal insulation (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2017-180041 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in building fixtures in which the fin portion on the frame material is abutted against the stile material as described above, heat is transferred between the stile material and the frame material through the fin portion, which raises concerns that condensation may easily occur on the frame material on the indoor side.

[0005] In view of the above circumstances, the present invention aims to provide a fitting that can improve heat insulation and moisture resistance. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the fitting of the present invention is characterized in that a shoji screen is arranged in a frame body having a frame material with a metal frame portion and a resin frame portion so that it can be opened and closed, and the frame material that makes up the shoji screen is a fitting having a metal frame portion and a resin frame portion, and at least one of the metal frame portion and the metal frame portion is provided with a sealant that seals the space between them when the shoji screen is placed in a closed position relative to the frame body, and when the shoji screen is placed in a closed position relative to the frame body, a groove portion is provided in the part surrounded by the frame material, the frame material and the sealant, and the groove portion opens to the interior space between the resin frame portion and the resin frame portion, and the opening width is configured to be large compared to the depth dimension, or the opening width is configured to be greater than 10 mm. Effect of the Invention

[0007] According to the present invention, the groove opening width is large relative to the depth, or the opening width exceeds 10 mm, so that heat transfer between the frame and the frame is suppressed. As a result, even when the outdoor temperature is lower than the indoor temperature, there is no risk of condensation forming on the part of the resin frame facing the indoors. [Brief description of the drawings]

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

[0009] Hereinafter, a preferred embodiment of the fitting according to the present invention will be described in detail with reference to the accompanying drawings. For convenience, the terms "prospective direction" and "search direction" may be used hereinafter. The prospective direction is the direction along the depth of the fitting, as indicated by arrow A in the figure. The surface along the prospective direction may be referred to as the prospective surface. The search direction is the direction along the vertical direction perpendicular to the prospective direction in the case of an object extending along the horizontal direction such as a lower frame, etc., and is the direction along the horizontal perpendicular to the prospective direction in the case of an object extending along the vertical direction such as a vertical frame. The surface along the search direction may be referred to as the search surface.

[0010] Figures 1 to 3 show a fitting which is an embodiment of the present invention. The fitting exemplified here is called a vertical sliding-out window configured to push open the shoji 20 in the out-of-plane direction toward the outdoor side with respect to the frame body 10. In particular, in the present embodiment, a vertical sliding-out window attached to a building having a concrete structure is exemplified. The frame body 10 is constituted by surrounding the upper frame (frame member) 11, the lower frame (frame member) 12, and the left and right vertical frames (frame members) 13. The upper frame 11, the lower frame 12, and the vertical frame 13 are each constituted by including a metal frame portion formed of a metal such as an aluminum alloy and a resin frame portion formed of a resin. The shoji 20 has a panel 25 such as double glazing supported inside a frame body constituted by surrounding the upper frame (frame member) 21, the lower frame (frame member) 22, and the left and right vertical frames (frame members) 23. The upper frame 21, the lower frame 22, and the vertical frame 23 are also each constituted by including a metal frame portion formed of a metal such as an aluminum alloy and a resin frame portion formed of a resin. In the illustrated example, the metal frame portions on the four sides are constituted by having a metal frame main body portion and a pressing edge attached to the metal frame main body portion. Hereinafter, the configurations of the frame body 10 and the shoji 20 will be described in detail, and the characteristic portions of the present invention will be described together. Since the vertical frames 13 and the vertical frames 23 have symmetrical shapes on the left and right, respectively, only one of them will be described, and the same reference numerals will be given to the other and the description thereof will be omitted.

[0011] As shown in Figure 4, the metal frame portion 30 of the upper frame 11 is integrally molded with an upper metal frame main body 30a, an upper door stop wall portion 30b, and an upper resin frame support portion 30c. The upper metal frame main body 30a has a hollow, approximately rectangular cross section. An upper seal member S0 is attached to the outer, inner periphery of the upper metal frame main body 30a. The upper door stop wall portion 30b extends inward from the inner, inner periphery of the upper metal frame main body 30a. A seal member (tight material) S1 is attached to a pocket portion 30d on the inner periphery of the upper door stop wall portion 30b facing the outside. An upper cover groove portion 30e, opening to the inner periphery, is provided on the inner periphery of the upper door stop wall portion 30b facing the inside of the room. The upper resin frame support portion 30c extends from the outer periphery of the upper metal frame main body 30a, on the inside of the room, in the forward direction toward the inside of the room, and has an upper insertion groove 30f that opens to the inner periphery at the edge on the inside of the room.

[0012] The resin frame portion 31 of the upper frame 11 is integrally molded with an upper resin frame main body 31a, an upper frame cover portion 31b, an upper insertion plate portion 31c, and an upper mounting plate portion 31d. The upper resin frame main body 31a has a hollow, approximately rectangular cross section with a vertically elongated shape. The upper frame cover portion 31b extends in the forward direction from the edge on the inner periphery of the upper resin frame main body 31a, which faces the exterior of the room, toward the outside of the room. The upper frame cover portion 31b is provided with an upper cover protrusion 31e and a groove-forming fin portion 31f. The upper cover protrusion 31e extends in the forward direction from the outer peripheral surface of the upper frame cover portion 31b toward the outer periphery. The groove-forming fin portion 31f extends in the forward direction from the extended edge of the upper frame cover portion 31b toward the outer periphery. The upper insertion plate 31c extends from the outer periphery of the upper resin frame body 31a, on the interior side, in the forward direction toward the periphery. The upper mounting plate 31d extends from the outer periphery of the interior-facing surface of the upper resin frame body 31a in the forward direction toward the interior.

[0013] The resin frame 31 is attached to the metal frame 30 by inserting the upper cover projection 31e into the upper cover groove 30e and the upper insertion plate 31c into the upper insertion groove 30f. As is clear from the figure, in the metal frame 30 with the resin frame 31 attached, the inner peripheral surface of the upper door stop wall 30b, the inner peripheral surface of the portion located further inside the room than that, and the front surface of the upper door stop wall 30b facing the room are covered by the resin frame 31. In addition, the groove-forming fin 31f is arranged along the front surface direction in the portion located further inside than the seal member S1. The front surface of the groove-forming fin 31f facing the outside of the room is located on the same plane as the front surface of the pocket 30d facing the outside of the room.

[0014] As shown in Figure 5, the metal frame portion 32 of the lower frame 12 is integrally molded with a lower metal frame main body 32a, a lower door stop wall portion 32b, a lower resin frame support portion 32c, and a drip board portion 32d. The lower metal frame main body 32a has a hollow, approximately rectangular cross section. The lower door stop wall portion 32b extends from the inner peripheral edge of the lower metal frame main body 32a, which faces the interior of the room, toward the interior and then extends in the direction of the view. A sealing material (tight material) S1 is attached to a pocket portion 32e on the inner peripheral edge of the lower door stop wall portion 32b facing the outside of the room. A lower cover groove portion 32f opening to the inner peripheral side is provided on the inner peripheral edge of the lower door stop wall portion 32b facing the interior of the room. The lower resin frame support portion 32c extends from the middle of the visible surface of the lower door stop wall portion 32b facing the interior toward the interior, and has a lower insertion groove 32g that opens to the inner periphery at the edge facing the interior. The water drip plate portion 32d extends from the outer periphery of the lower metal frame body 32a, the edge facing the exterior, toward the exterior, and then has a portion that bends toward the periphery.

[0015] The resin frame portion 33 of the lower frame 12 is formed by integrally molding a lower resin frame main body 33a, a lower frame cover portion 33b, a lower mounting plate portion 33c, and a lower insertion plate portion 33d. The lower resin frame main body 33a extends substantially horizontally along the prospective direction, and the edges located on the outdoor side and the edges located on the indoor side are curved toward the inner peripheral side, respectively. The lower frame cover portion 33b extends in the prospective direction from the edge on the outdoor side of the lower resin frame main body 33a toward the outside. The lower frame cover portion 33b is provided with a lower cover protrusion 33e and a groove-forming fin portion 33f. The lower cover protrusion 33e extends in the finding direction from the prospective surface on the outer peripheral side of the lower frame cover portion 33b toward the outer peripheral side. The groove-forming fin portion 33f extends in the finding direction from the extending edge of the lower frame cover portion 33b toward the outer peripheral side. The lower mounting plate portion 33c extends in the prospective direction from the edge on the indoor side of the lower resin frame main body 33a toward the inside. The lower insertion plate portion 33d extends in the finding direction from the portion closer to the outside on the prospective surface on the outer peripheral side of the lower mounting plate portion 33c toward the outer periphery.

[0016] This resin frame portion 33 is attached to the metal frame portion 32 by inserting the lower cover protrusion 33e into the lower cover groove portion 32f and inserting the lower insertion plate portion 33d into the lower insertion groove 32g. As is clear from the figure, in the metal frame portion 32 with the resin frame portion 33 attached, the prospective surface on the inner peripheral side of the lower door stop wall portion 32b and the prospective surface of the portion located more indoors than this are covered by the resin frame portion 33. Further, the groove-forming fin portion 33f is arranged along the finding direction in the portion on the inner peripheral side of the seal member S1. The finding surface of the groove-forming fin portion 33f facing the outside is located on the same plane as the finding surface of the pocket portion 32e facing the outside.

[0017] As shown in Figure 6, the metal frame portion 34 of the vertical frame 13 is integrally formed with a vertical metal frame main body 34a, a vertical doorstop wall portion 34b, and a vertical resin frame support portion 34c. The vertical metal frame main body 34a has a hollow, approximately rectangular cross section with its length extending in the forward direction. The vertical doorstop wall portion 34b extends in the forward direction from the edge of the vertical metal frame main body 34a, which is on the inner side of the room, toward the inner periphery. A sealing material (tight material) S1 is attached to a pocket portion 34d on the inner peripheral edge of the vertical doorstop wall portion 34b facing the outside of the room. A vertical cover groove portion 34e opening to the inner peripheral side is provided on the inner peripheral edge of the vertical doorstop wall portion 34b facing the inside of the room. The vertical resin frame support portion 34c extends from the outer periphery of the vertical metal frame main body 34a, on the inside of the room, in the forward direction toward the inside of the room, and has a vertical insertion groove 34f that opens to the inner periphery at the edge on the inside of the room.

[0018] The resin frame portion 35 of the vertical frame 13 is integrally formed with a vertical resin frame main body 35a, a vertical frame cover portion 35b, a vertical insertion plate portion 35c, and a vertical mounting plate portion 35d. The vertical resin frame main body 35a has a hollow, approximately rectangular cross section with its longitudinal axis in the find direction. The vertical frame cover portion 35b extends in the find direction from the edge of the vertical resin frame main body 35a on the inner periphery and facing the exterior toward the outside of the room. The vertical frame cover portion 35b is provided with a vertical cover protrusion 35e and a groove-forming fin portion 35f. The vertical cover protrusion 35e extends in the find direction from the outer periphery of the vertical frame cover portion 35b toward the outer periphery. The groove-forming fin portion 35f extends in the find direction from the extended edge of the vertical frame cover portion 35b toward the outer periphery. The vertical insertion plate portion 35c extends from the edge of the vertical resin frame body 35a, which is on the outer periphery and faces the room, toward the periphery in the forward direction. The vertical mounting plate portion 35d extends from the outer periphery of the face of the vertical resin frame body 35a, which faces the room, toward the room in the forward direction.

[0019] This resin frame part 35 is attached to the metal frame part 34 by inserting the vertical cover protrusion 35e into the vertical cover groove part 34e and inserting the vertical insertion plate part 35c into the vertical insertion groove 34f. As is clear from the figure, in the metal frame part 34 with the resin frame part 35 attached, the prospective surface on the inner peripheral side of the vertical door contact wall part 34b and the discovery surface facing the interior are covered by the resin frame part 35. Also, in the part on the inner peripheral side of the seal member S1, the groove forming fin part 35f is arranged along the discovery direction. The discovery surface of the groove forming fin part 35f facing the outdoor side is located on the same plane as the discovery surface of the pocket part 34d facing the outdoor side.

[0020] As shown in FIGS. 1 to 3, the upper frame 11, the lower frame 12, and the left and right vertical frames 13 configured as described above form the frame body 10 by being assembled in a four-sided manner. The seal members S1 provided on the respective door contact wall parts 30b, 32b, 34b are continuous in a series on the four sides. This frame body 10 can be attached to a concrete structure through an anchor member by attaching an anchor member (not shown) to each of the metal frame parts 30, 32, 34.

[0021] As shown in Fig. 4, the metal frame portion 41 of the upper frame 21 integrally forms an inner hollow portion 41a, an intermediate hollow portion 41b, an outer hollow portion 41c, and a panel support wall portion 41d to constitute a metal frame main body portion 41A. The inner hollow portion 41a, the intermediate hollow portion 41b, and the outer hollow portion 41c each have a hollow shape with a substantially rectangular cross-section, and the intermediate hollow portion 41b and the outer hollow portion 41c are sequentially connected in series on the outdoor side of the inner hollow portion 41a. The prospective surfaces on the outer peripheral sides of the inner hollow portion 41a and the intermediate hollow portion 41b are located on the same plane, while the inner peripheral side portions of the inner hollow portion 41a protrude more inwardly than the intermediate hollow portion 41b. Further, in the intermediate hollow portion 41b, the half portion located on the outdoor side protrudes more inwardly than the half portion located on the indoor side, thereby forming a stepped portion 41e in the intermediate portion. An inner engaging protrusion 41f for the edge pressing is provided at the inner peripheral side and the outdoor side edge portion of the inner hollow portion 41a, and an outer engaging protrusion 41g for the edge pressing is provided at the stepped portion 41e of the intermediate hollow portion 41b. The inner engaging protrusion 41f for the edge pressing and the outer engaging protrusion 41g for the edge pressing are for attaching the edge pressing 40 to the metal frame main body portion 41A. The inner engaging protrusion 41f for the edge pressing protrudes outwardly, and the outer engaging protrusion 41g for the edge pressing protrudes inwardly from the edge portion on the inner peripheral side of the stepped portion 41e. As the edge pressing 40, a common one for the four sides is applied. Specifically, the edge pressing 40 is attached to the metal frame main body portion 41A in a state of being engaged with the inner engaging protrusion 41f for the edge pressing and the outer engaging protrusion 41g for the edge pressing, and extends along the finding direction substantially from the inner peripheral side and the outer peripheral side edge portion of the inner hollow portion 41a toward the inner circumference. An insertion support portion 40a for supporting a resin frame portion 42 described later is provided on the finding surface of the edge pressing 40 facing the indoor side. As is clear from the figure, a concave portion is provided at the inner peripheral side and the indoor side edge portion of the inner hollow portion 41a, and a resin engaging portion 41h is provided at the portion of the concave portion located on the indoor side. The resin engaging portion 41h extends toward the inner peripheral side and then bends toward the outdoor side. The finding surface of the resin engaging portion 41h facing the indoor side is located on the same plane as the finding surface of the inner hollow portion 41a facing the indoor side. The panel support wall portion 41d extends in the finding direction from the inner peripheral side and the outdoor side edge portion of the outer hollow portion 41c toward the inner peripheral side.At the portion facing the interior on the inner peripheral edge of the panel support wall portion 41d, a sealant mounting portion 41j is provided so as to open toward the interior.

[0022] The resin frame portion 42 of the upper frame 21 is integrally formed with a resin frame portion main body 42a, an insertion receiving portion 42b, and a groove forming fin portion 42c. The resin frame portion main body 42a has a substantially rectangular cross-sectional hollow shape. The insertion receiving portion 42b is provided on the finding surface of the resin frame portion main body 42a facing the exterior, and can be inserted into the insertion support portion 40a of the pressing edge 40. The groove forming fin portion 42c extends in the finding direction from the edge portion on the indoor side and the outer peripheral side of the resin frame portion main body 42a toward the outer periphery. The extending edge portion of the groove forming fin portion 42c extends toward the outer peripheral side after bending toward the exterior, and can be engaged with the resin engaging portion 41h.

[0023] This resin frame portion 42 is attached to the metal frame portion 41 in a state of protruding into the interior from the finding surface of the pressing edge 40 facing the interior by inserting the insertion support portion 40a into the insertion receiving portion 42b and engaging the groove forming fin portion 42c with the resin engaging portion 41h. As is apparent from the figure, in the metal frame portion 41 with the resin frame portion 42 attached, the space from the finding surface of the pressing edge 40 facing the interior and the prospective surface on the inner peripheral side of the pressing edge 40 to the prospective surface on the inner peripheral side of the inner hollow portion 41a is substantially covered by the resin frame portion 42. Further, the resin frame portion 42 is in a state where the finding surface of the groove forming fin portion 42c facing the interior is located on the same plane as the finding surface of the inner hollow portion 41a and the finding surface of the resin engaging portion 41h.

[0024] The metal frame portion 43 of the lower frame 22 integrally forms an inner hollow portion 43a, an intermediate hollow portion 43b, an outer hollow portion 43c, and a panel support wall portion 43d to constitute a metal frame main body portion 43A. The inner hollow portion 43a, the intermediate hollow portion 43b, and the outer hollow portion 43c each have a hollow shape with a substantially rectangular cross-section, and the intermediate hollow portion 43b and the outer hollow portion 43c are sequentially connected in series on the outdoor side of the inner hollow portion 43a. The inner hollow portion 43a, the intermediate hollow portion 43b, and the outer hollow portion 43c are positioned such that the prospective surfaces on the outer peripheral side are on the same plane, while the inner peripheral side portions are such that the inner hollow portion 43a protrudes more inwardly than the intermediate hollow portion 43b and the outer hollow portion 43c. Further, in the intermediate hollow portion 43b, the half portion located on the outdoor side protrudes more inwardly than the half portion located on the indoor side, thereby forming a stepped portion 43e in the intermediate portion. On the inner peripheral side and the edge portion on the outdoor side of the inner hollow portion 43a, a pressing edge inner engaging protrusion 43f is provided, and on the stepped portion 43e of the intermediate hollow portion 43b, a pressing edge outer engaging protrusion 43g is provided. The pressing edge inner engaging protrusion 43f and the pressing edge outer engaging protrusion 43g are for attaching the pressing edge 40 to the metal frame main body portion 43A. The pressing edge inner engaging protrusion 43f protrudes toward the outside, and the pressing edge outer engaging protrusion 43g protrudes toward the inside from the edge portion on the inner peripheral side of the stepped portion 43e. As is clear from the figure, a recess is provided at the edge portion on the inner peripheral side and the indoor side of the inner hollow portion 43a, and a resin engaging portion 43h is provided at the portion located on the indoor side of the recess. The resin engaging portion 43h extends toward the inner peripheral side and then bends toward the outdoor side. The finding surface of the resin engaging portion 43h facing the indoor side is located on the same plane as the finding surface of the inner hollow portion 43a facing the indoor side. The panel support wall portion 43d extends in the finding direction from the edge portion on the inner peripheral side and the outdoor side of the outer hollow portion 43c toward the inner peripheral side. A seal material mounting portion 43j is provided at the portion facing the indoor side at the inner peripheral edge portion of the panel support wall portion 43d so as to open toward the indoor side.

[0025] The resin frame portion 44 of the lower frame 22 is configured to have a shape symmetrical to the resin frame portion 42 of the upper frame 21, including the resin frame portion main body 44a, the insertion receiving portion 44b, and the groove forming fin portion 44c. This resin frame portion 44 is attached to the pressing edge 40 in a state of protruding into the room from the finding surface facing the room of the metal frame portion 43 by inserting the insertion receiving portion 44b into the insertion support portion 40a and engaging the groove forming fin portion 44c with the resin engaging portion 43h. As is clear from the figure, in the metal frame portion 43 with the resin frame portion 44 attached, the space from the finding surface facing the room of the pressing edge 40 and the prospective surface on the inner peripheral side of the pressing edge 40 to the prospective surface on the inner peripheral side of the inner hollow portion 43a is substantially covered by the resin frame portion 44. Further, in the resin frame portion 44, the finding surface facing the room of the groove forming fin portion 44c is in a state of being located on the same plane as the finding surface of the inner hollow portion 43a and the finding surface of the resin engaging portion 43h.

[0026] The metal frame portion 45 of the vertical frame 23 forms a metal frame main body portion 45A by integrally molding a vertical metal frame main body 45a, a vertical panel support wall portion 45b, and a vertical seal fin portion 45c. The vertical metal frame main body 45a has a substantially flat plate shape that extends vertically along the prospective direction. A resin engaging portion 45d is provided at the edge portion located on the indoor side of the vertical metal frame main body 45a along the finding direction. The extending edge portion of the portion extending toward the inner peripheral side of the resin engaging portion 45d is bent toward the outdoor side. On the prospective surface on the inner peripheral side of the vertical metal frame main body 45a, an inner engaging projection 45e and an outer engaging projection 45f for mounting the pressing edge 40 are provided. The inner engaging projection 45e of the pressing edge projects toward the inner peripheral side and then bends toward the outdoor side. The outer engaging projection 45f of the pressing edge projects toward the inner peripheral side on the outdoor side of the inner engaging projection 45e of the pressing edge and then bends toward the indoor side. The vertical panel support wall portion 45b extends in the finding direction from the edge portion on the outdoor side of the vertical metal frame main body 45a toward the inner peripheral side. A seal material mounting portion 45g is provided at a portion facing the indoor side at the inner peripheral edge portion of the vertical panel support wall portion 45b so as to open toward the indoor side. The vertical seal fin portion 45c extends in the finding direction from the edge portion on the outdoor side of the vertical metal frame main body 45a toward the outer peripheral side. A seal member S2 interposed between the vertical frame 13 is mounted on the extending edge portion of the vertical seal fin portion 45c.

[0027] The resin frame portion 46 of the vertical frame 23 has the same shape as that of the upper frame 21, including the resin frame portion main body 46a, the insertion receiving portion 46b, and the groove forming fin portion 46c. This resin frame portion 46 is attached to the pressing edge 40 in a state of protruding into the room from the finding surface facing the room of the pressing edge 40 by inserting the insertion receiving portion 46b into the insertion support portion 40a and engaging the groove forming fin portion 46c with the resin engaging portion 43h. As is clear from the figure, in the metal frame portion 45 with the resin frame portion 46 attached, the space from the finding surface facing the room of the pressing edge 40 and the prospective surface on the inner peripheral side to the prospective surface on the inner peripheral side of the vertical metal frame main body 45a is covered by the resin frame portion 46. An operation handle 26 is attached to the resin frame portion 46 of one of the vertical frames 23. Although not shown in the figure, the operation handle 26 performs a locking and unlocking operation on the locking device between the vertical frame 13 and the vertical frame 23 by appropriate operation. Further, the resin frame portion 46 is in a state where the finding surface facing the room of the groove forming fin portion 46c is located on the same plane as the finding surface facing the room of the resin engaging portion 45d.

[0028] The upper frame 21, the lower frame 22, and the left and right vertical frames 23 configured as described above are assembled into a four-sided structure, and the edge portion of the panel 25 is supported between the respective panel support wall portions 41d, 43c, 45b and the four-sided pressing edge 40 via a sealing material S3, thereby constituting the shoji 20. This shoji 20 is supported by the frame body 10 so as to be openable and closable by interposing a link mechanism 1 called a friction stay between the metal frame portion 41 of the upper frame 21 and the metal frame portion 30 of the upper frame 11 and between the metal frame portion 43 of the lower frame 22 and the metal frame portion 32 of the lower frame 12. When the shoji 20 is arranged in the closed position with respect to the frame body 10, the shoji 20 is held in the closed position by the above-described locking device (not shown) being engaged. In the state where the shoji 20 is arranged in the closed position, as shown in FIGS. 2 and 3, the upper seal member S0 provided on the upper frame 11 abuts against the upper frame 21, and the seal members S2 provided on the left and right vertical frames 23 abut against the corresponding vertical frames 13, respectively.

[0029] Furthermore, on the indoor side, the series of sealing members S1 attached to each door-stop wall portion 30b, 32b, and 34b of the frame body 10 abuts against the interior-facing surfaces of the metal frame portions 41, 43, and 45 of the upper frame 21, lower frame 22, and left and right vertical frame portions 23. This prevents outside water, such as rainwater, and outside air from entering the room. In particular, in this embodiment, the sealing member S1 does not contact the resin frame portions 42, 44, and 46, but only the metal frame portions 41, 43, and 45, which are molded with higher precision. Furthermore, there is no other contact between the frame body 10 and the shoji screen 20 at the abutting portion of the sealing member S1. This allows the sealing member S1 to be pressed against the frame body 10 without any gaps, further improving the watertightness and airtightness between the frame body 10 and the shoji screen 20. In addition, in the upper frame 21, lower frame 22, and left and right vertical frames 23, the groove-forming fin portions 31f, 33f, and 35f are arranged along the viewing direction in the portion that is more inward than the sealing member S1, making it difficult to see the sealing member S1 from the outside, which is also advantageous in terms of appearance quality.

[0030] On the other hand, when the shoji screen 20 is in the closed position, grooves 50 opening toward the indoor space are formed around the four periphery between the frame body 10 and the shoji screen 20. That is, between the upper frame 11 and the upper stile 21, the groove-forming fins 31f provided on the resin frame portion 31 and the groove-forming fins 42c provided on the resin stile portion 42 face each other at a distance from each other, forming grooves 50 opening toward the inner periphery in the area surrounded by the sealing member S1, the groove-forming fins 31f, and the groove-forming fins 42c. Similarly, between the lower frame 12 and the lower stile 22, the groove-forming fins 33f provided on the resin frame portion 33 and the groove-forming fins 44c provided on the resin stile portion 44 face each other at a distance from each other, forming grooves 50 opening toward the inner periphery in the area surrounded by the sealing member S1, the groove-forming fins 33f, and the groove-forming fins 44c. Between the vertical frame 13 and the vertical stile 23, the groove-forming fin portion 35f provided on the resin frame portion 35 and the groove-forming fin portion 46c provided on the resin stile portion 46 face each other, and a groove portion 50 opening upward is formed in the area surrounded by the sealing member S1, the groove-forming fin portion 35f, and the groove-forming fin portion 46c.

[0031] Therefore, when assembling the shoji 20, since the panel 25 is arranged on the metal frame main body parts 41A, 43A, and 45A and then the pressing edge 40 is attached, the resin frame parts 31, 33, and 35 do not get in the way, making the work easier. Also, at this time, it is possible to look into the seal member S1 through the groove part 50. As a result, it becomes possible to accurately adjust the amount of compression of the seal member S1, which is more advantageous in terms of watertightness and airtightness.

[0032] Here, in the present embodiment, the groove part 50 is configured such that when the shoji 20 is arranged in the closed position, the opening width along the prospective direction is larger than the depth dimension along the finding direction. That is, the groove part 50 does not become the "groove or cavity with a small cross-section (semi-closed cavity)" defined in 6.4.1 of JIS A 2102-2:2011 6.4 "Ventilated cavity". Therefore, by providing the groove part 50 between the resin frame parts 31, 33, 35 of the frame body 10 and the resin frame parts 42, 44, 46 of the shoji 20, the resin frame parts 31, 33, 35 and the resin frame parts 42, 44, 46 are thermally blocked. As a result, for example, even when the outdoor temperature is lower than the indoor temperature, heat transfer from each of the resin frame parts 31, 33, 35 to the resin frame parts 42, 44, 46 of the shoji 20 is suppressed, and the temperature drop of the resin frame parts 31, 33, 35 is suppressed, so there is no risk of causing a situation where dew condensation occurs, which is advantageous in terms of anti-dew condensation properties.

[0033] Explaining in more detail with reference to FIG. 5, for example, when the indoor air temperature is higher than the outdoor temperature, heat moves from the indoor side to the outdoor side. When the above-described groove part 50 is a semi-closed cavity, heat transfer occurs through the groove part 50, and as a result, heat is transferred from the resin frame part 33 of the lower frame 12 to the resin frame part 44 of the shoji 20, so there is a concern of dew condensation occurring in the resin frame part 33. On the other hand, when the groove part 50 is not a semi-closed cavity, heat transfer from the resin frame part 33 to the resin frame part 44 of the shoji 20 is suppressed by the groove part 50, and the concern of dew condensation occurring in the resin frame part 33 disappears.

[0034] In the above-described embodiments, a vertical sliding window has been exemplified. However, as long as the shoji door opens and closes with respect to the frame body, it can be applied to other types of window fittings. Also, although the groove portions are provided on the four sides, the groove portions do not necessarily have to be provided on the four sides. Furthermore, although the tight material is provided on the frame body side, the tight material may be provided on the shoji door side.

[0035] Also, in the above-described embodiments, since the groove portion is provided so as to open to the inner peripheral side, even if the height position of the shoji door is displaced with respect to the frame body, there is no possibility of causing a situation where the dimensions of the groove portion are changed. However, the groove portion may be provided so that the expected direction is the depth direction. Furthermore, although the groove portion is provided such that the opening width is larger than the depth dimension, as long as the groove portion has an opening width exceeding 10 mm, the relationship between the opening width and the depth dimension is not limited to this, and the groove portion does not form the above-described semi-closed cavity.

[0036] As described above, the fitting according to the present invention includes a frame body having a frame material having a metal frame portion and a resin frame portion, and a shoji door is disposed on the frame body so as to be openable and closable. The stile material constituting the shoji door is a fitting having a metal stile portion and a resin stile portion. At least one of the metal frame portion and the metal stile portion is provided with a tight material that seals between them when the shoji door is disposed at the closed position with respect to the frame body. When the shoji door is disposed at the closed position with respect to the frame body, a groove portion is provided in a portion surrounded by the frame material, the stile material, and the tight material. The groove portion opens to the indoor space between the resin frame portion and the resin stile portion, and is configured such that the opening width is larger than the depth dimension, or the opening width is configured to exceed 10 mm. According to the present invention, since the groove portion is configured such that the opening width is larger than the depth dimension, or the opening width is configured to exceed 10 mm, heat transfer between the stile material and the frame material is suppressed. As a result, for example, even when the outdoor temperature is lower than the indoor temperature, there is no possibility of causing a situation where dew condensation occurs on the portion of the resin frame portion facing the indoor.

[0037] Further, the present invention relates to the fitting described above, wherein the frame has upper and lower horizontal frames and left and right vertical frames, the shoji has upper and lower horizontal frames and left and right vertical frames, and the groove portions are respectively provided between the upper and lower horizontal frames and the upper and lower horizontal frames and between the left and right vertical frames and the left and right vertical frames. According to this invention, it becomes possible to prevent the occurrence of condensation around the fitting.

[0038] Further, the present invention relates to the fitting described above, wherein the groove portion is configured to open to the inner peripheral side, the tight material is provided on the finding surface facing the outdoor side of the metal frame portion, and the finding surface facing the tight material and the finding surface constituting the groove portion in the frame material are located on the same plane. According to this invention, since the finding surface facing the indoor side of the frame material is flat, water generated indoors can be stored in the groove portion in the lower frame, which is advantageous in terms of drainage.

[0039] Further, the present invention relates to the fitting described above, wherein the finding surface provided with the tight material and the finding surface constituting the groove portion in the frame material are located on the same plane as each other. According to this invention, the tight material can be easily visually recognized in a state where the shoji is arranged in the closed position, and the operation of adjusting the tight material to have a desired amount of crushing can be easily and accurately performed.

[0040] Further, the present invention relates to the fitting described above, wherein the shoji has a panel supported between the shoji and a pressing edge provided on the indoor side of the frame material, the resin frame portion is attached to a portion facing the indoor side of the pressing edge, and the groove portion is provided between the resin molded portion attached to the pressing edge and the resin molded portion of the frame material. According to this invention, since the groove portion is formed between the resin molded portion attached to the pressing edge and the frame material, even when the pressing edge is attached in a state where the shoji is arranged in the closed position, it does not interfere with the frame material, and the operation can be easily performed.

Explanation of Reference Numerals

[0041] 10 Frame body, 11 Upper frame, 12 Lower frame, 13 Vertical frame, 20 Shoji, 21 Upper frame, 22 Lower frame, 23 Vertical frame, 25 Panel, 30, 32, 34 Metal frame parts, 31, 33, 35 Resin frame parts, 40 Pressing edge, 41, 43, 45 Metal frame parts, 42, 44, 46 Resin frame parts, 50 Groove part, S1 Seal member

Claims

1. A shutter is disposed on a frame body provided with a frame material having a metal frame part and a resin frame part so as to be openable and closable. The stile material constituting the shutter is a fitting having a metal stile part and a resin stile part, at least one of the metal frame part and the metal stile part is provided with a tight material that seals between them when the shutter is disposed at the closed position with respect to the frame body, when the shutter is disposed at the closed position with respect to the frame body, a groove part is provided in a portion surrounded by the frame material, the stile material, and the tight material, the groove part opens into the indoor space between the resin frame part and the resin stile part, and is configured such that the opening width is larger than the depth dimension or the opening width is configured to exceed 10 mm. The fitting is characterized by this.

2. The frame body has upper and lower horizontal frames and left and right vertical frames, and the shutter has upper and lower horizontal stiles and left and right vertical stiles, The fitting according to claim 1, wherein the groove parts are respectively provided between the upper and lower horizontal frames and the upper and lower horizontal stiles and between the left and right vertical frames and the left and right vertical stiles.

3. The groove part is configured to open to the inner peripheral side, the tight material is provided on a finding surface of the metal frame part facing the outdoor side, The fitting according to claim 1, wherein a finding surface of the stile material facing the tight material and a finding surface constituting the groove part are located on the same plane.

4. The fitting according to claim 3, wherein a finding surface of the frame material on which the tight material is provided and a finding surface constituting the groove part are located on the same plane with each other.

5. The shutter is configured such that a panel is supported between the shutter and a pressing edge provided on the indoor side of the stile material, the resin stile part is attached to a portion of the pressing edge facing the indoor side, The fitting according to claim 1, wherein the groove part is provided between a resin molded part attached to the pressing edge and a resin molded part of the frame material.

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