Doors and sliding pieces

Abstract

To provide building components and sliding pieces that can improve watertightness and airtightness. [Solution] In a sliding window, the outer sash is provided with an upper sliding piece 45 having a groove-forming portion 453 that forms a groove 452 on which the upper rail of the window frame is positioned. The groove-forming portion 453 has narrow portions 456 that form a groove width smaller than the groove width at both ends thereof. The narrow portions 456 have protruding portions 456A and 456B that are positioned on the outdoor side at a depth position that protrudes inward from the depth position at both ends of the groove-forming portion 453. When the upper sliding piece 45 is installed on the outer sash, a clearance space 457 is formed in the outdoor portion that is located on the outdoor side of the groove 452 in the Z-axis direction and on the outdoor side of the narrow portions 456. The groove-forming portion 453 is configured to move the narrow portions 456 outward toward the clearance space 457 by elastic deformation when the narrow portions 457 are pressed against the upper rail toward the indoor side.

Description

Technical Field

[0001] The present invention relates to a fitting such as a sliding window including a sliding window such as a double sliding window or a single sliding window, which includes a frame provided with a rail and a shoji arranged in the frame so as to be slidable along the rail, and the shoji is provided with a sliding piece for guiding the shoji in the sliding movement direction along the rail, and to the sliding piece.

Background Art

[0002] Conventionally, as a fitting in which a shoji slides within a frame, there is provided a frame including an upper frame, a lower frame, and left and right vertical frames, a fitting window part configured closer to the interior in the prospective direction in half of the area within the frame, and a shoji configured closer to the exterior within the frame and including a door end frame, a summons frame, an upper frame, a lower frame, and glass. The shoji is provided with an externally moving piece sliding window slidable within the frame along the upper frame and the lower frame (see Patent Document 1). The fitting window part is held in a groove formed in the frame, and the shoji is held in a rail formed in the upper frame or the like. In the shoji, resin-made anti-deflection parts (sliding pieces) facing the prospective direction with respect to the rail of the upper frame are attached to the upper end parts of the door end frame and the summons frame, and an anti-disengagement piece made of resin protrudes upward from the outdoor side part of the anti-deflection part. This externally moving piece sliding window is configured to prevent the shoji from falling out of the frame by the anti-disengagement piece being caught on the upper frame even when, for example, the engagement between the upper part of the shoji and the rail of the upper frame is lost.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Incidentally, in the externally operated sliding window described in Patent Document 1, the holding structure of the fixed window portion, which is held in a groove formed in the frame, and the holding structure of the sash, which is held in a rail formed in the frame, are different. For this reason, for example, when the externally operated sliding window is subjected to a load such as wind pressure from the outside, the fixed window portion, which is subjected to an external force in the direction of depth toward the inside, can be displaced in the direction of depth toward the inside in the groove formed in the frame, while the sash, which is subjected to an external force in the direction of depth toward the inside, can be displaced by the amount of the gap between the anti-sway component and the rail. If the amount of displacement of the sash in the direction of depth is smaller than the amount of displacement of the fixed window portion, a gap may be created between the fixed window portion and the sash, making it difficult to improve watertightness and airtightness.

[0005] The object of the present invention is to provide building components and sliding pieces that can improve watertightness and airtightness. [Means for solving the problem]

[0006] The present invention relates to a joinery comprising a frame on which a rail is provided, and a sliding screen disposed within the frame, wherein the sliding screen is provided with a sliding piece having a groove-forming portion that forms a groove in which the rail is arranged, the groove-forming portion has narrow portions that constitute a groove width smaller than the groove width at both ends thereof, the narrow portion has a projection portion located on the outdoor side relative to the groove, which is positioned at a depth position that protrudes inward from the interior side than the depth positions of both ends of the groove-forming portion, and at least when the sliding piece is provided on the sliding screen, a clearance space is formed in the outdoor portion located on the outdoor side relative to the groove in the depth direction and on the outdoor side relative to the narrow portion, and the groove-forming portion is configured to move the narrow portion outward toward the clearance space by elastic deformation when the narrow portion is pressed against the rail toward the interior side in the depth direction. The sliding piece of the present invention is a sliding piece used in the building fitting of the present invention as described above. [Effects of the Invention]

[0007] The objective of the present invention is to provide building components and sliding pieces that can improve watertightness and airtightness. [Brief explanation of the drawing]

[0008] [Figure 1] An interior view showing a sliding window according to an embodiment of the present invention. [Figure 2] A vertical cross-sectional view showing a sliding window according to the above embodiment. [Figure 3] A cross-sectional view showing a sliding window according to the above embodiment. [Figure 4] A perspective view illustrating the main parts of a sliding window according to the above embodiment. [Figure 5] A perspective view showing the upper sliding piece of a sliding window according to the above embodiment. [Figure 6] Figure 5 shows a cross-sectional view taken along the line VI-VI. [Figure 7] Figure 5 is an explanatory diagram showing the upper sliding piece. [Figure 8] A perspective view showing the lower sliding piece of a sliding window according to the above embodiment. [Figure 9] An explanatory diagram showing the lower sliding piece as shown in Figure 8. [Figure 10] Figures 5 and 8 are explanatory diagrams showing the elastic deformation of the upper and lower sliding pieces. [Figure 11] Figure 5 is a perspective view showing a modified example of the upper sliding piece. [Figure 12] Figure 11 shows a cross-sectional view taken along the line XII-XII. [Modes for carrying out the invention]

[0009] [Structure of this embodiment] Embodiments of the present invention will be described below with reference to the drawings. In Figures 1 to 3, the sliding window 1 as a building fixture according to this embodiment is installed in an opening in the building structure to separate the interior and exterior, and comprises a window frame 2 (frame body) and an inner sash 3 and an outer sash 4 (sash) that are slidably arranged within the window frame 2, with the inner sash 3 and outer sash 4 being arranged to slide open from each other. This sliding window 1 is a metal-resin composite window, with the metal part located on the exterior side and the resin part located on the interior side. In the following description, the left-right direction of the sliding window 1 (the direction of sliding movement, along the rails 211, 221, and 222 described later) is defined as the X-axis direction, the up-down direction of the sliding window 1 is defined as the Y-axis direction, and the depth direction of the sliding window 1 (indoor-outdoor direction) is defined as the Z-axis direction. The X, Y, and Z axes are orthogonal to each other. Furthermore, the direction toward the outside in the Z-axis direction is defined as the +Z-axis direction, and the direction toward the inside in the Z-axis direction is defined as the -Z-axis direction.

[0010] The window frame 2 comprises an upper frame 21, a lower frame 22, and left and right vertical frames 23, which are assembled together. The upper frame 21, lower frame 22, and left and right vertical frames 23 are extruded, with the upper frame 21 and lower frame 22 aligned along the X-axis and the left and right vertical frames 23 aligned along the Y-axis. The upper frame 21, lower frame 22, and left and right vertical frames 23 are comprised of aluminum frame materials 21A, 22A, and 23A as metal frame materials on the exterior side, and resin frame materials 21B, 22B, and 23B on the interior side. As shown in Figure 2, the aluminum frame material 21A of the upper frame 21 is provided with an upper rail 211 (rail) aligned with the X-axis direction into which the upper part of the outer sash 4 is fitted so as to be slidable in the X-axis direction. On the -Z-axis side relative to the upper rail 211, there is a retaining groove 212 aligned with the X-axis direction into which the upper part of the inner sash 3 is positioned so as to be slidable in the X-axis direction. In addition, airtight materials 213 and 214 are attached to the upper frame 21, which abut against the outer sash 4 and the inner sash 3 from the indoor side, respectively. As shown in Figure 2, the aluminum frame material 22A of the lower frame 22 is provided with lower rails 221 and 222 (rails) aligned with the X-axis direction. A roller 421 provided at the bottom of the outer sash 4 is mounted on the lower rail 221 so as to be able to move freely in the X-axis direction, and a roller 321 provided at the bottom of the inner sash 3 is mounted on the lower rail 222, which is located on the interior side of the lower rail 221, so as to be able to move freely in the X-axis direction. In addition, airtight materials 223 and 224 are attached to the lower frame 22 so as to be able to abut the outer sash 4 and the inner sash 3 from the interior side, respectively.

[0011] The inner sash 3 is positioned on the -Z axis side relative to the outer sash 4 and is equipped with a top frame 31, a bottom frame 32, a door edge frame 33, an inner meeting frame 34, and a surface material 37 consisting of a glass panel, etc., which are assembled in a vertically dominant frame configuration. The top frame 31, bottom frame 32, door edge frame 33, and inner meeting frame 34 are extruded and formed with hollow sections along their respective longitudinal directions. The top frame 31 and bottom frame 32 are aligned along the X axis, the door edge frame 33 and inner meeting frame 34 are aligned along the Y axis, and the inner meeting frame 34 constitutes the inner meeting section of the sliding window 1. The upper frame 31, lower frame 32, door edge frame 33, and inner meeting frame 34 are comprised of aluminum frame materials 31A, 32A, 33A, and 34A on the exterior side, and resin frame materials 31B, 32B, 33B, and 34B on the interior side. As shown in Figure 2, a portion of the aluminum frame material 31A of the upper frame 31 protrudes upward and is held in place by being absorbed into the retaining groove 212, and is also in slidable contact with the airtight material 214. This upper frame 31 is displaced slightly in the Z-axis direction, at least in accordance with the elastic deformation of the airtight material 214 in the Z-axis direction. As mentioned above, the aluminum frame material 32A of the lower frame 32 is equipped with a roller 321 that is mounted on the lower rail 222 so as to be able to move freely, and is in slidable contact with the airtight material 224 mentioned above. At the upper end of the door end frame 33, as shown in (A) of FIG. 4, a resin sliding piece 332 is provided which is arranged in the holding groove portion 212 and slidably guided in the X-axis direction. Further, at the lower end of the door end frame 33, as shown in (B) of FIG. 4, a groove portion 333A is formed, and a resin sliding piece 333 is provided which is slidably guided in the X-axis direction along the lower rail 222 arranged in the groove portion 333A. The sliding piece 333 is arranged at a minute interval in the Z-axis direction with respect to the lower rail 222. Thereby, the slide movement of the inner shutter 3 that opens and closes in the X-axis direction is smoothed, and by making the interval minute, the displacement of the inner shutter 3 in the Z-axis direction is minimized as much as possible. Note that no escape spaces 457, 467, etc. described later are provided in the sliding pieces 332, 333. In the inner sash frame 34, a smoke-return piece portion 346 having a substantially L-shaped cross section is formed which extends from the outdoor-side finding surface portion 345 of the aluminum frame member 34A and is bent toward the door end side of the inner shutter 3 in the X-axis direction. An airtight fin 347 (airtight material) along the Y-axis direction is provided on the outdoor-side finding surface portion 345 at a position on the door end side of the outer shutter 4 in the X-axis direction with respect to the smoke-return piece portion 346. The fin portion of the airtight fin 347 extends in the +Z-axis direction, and its tip abuts against the aluminum frame member 44A of the outer sash frame 44 described later of the outer shutter 4. This airtight fin 347 blocks the space between the inner sash frame 34 and the outer sash frame 44, maintaining the airtightness between the indoor and outdoor. At the upper end (upper part) of the inner sash frame 34, as shown in (A) of FIG. 4, a resin sliding piece 342 is provided which is arranged in the holding groove portion 212 and slidably guided in the X-axis direction. Further, at the lower end (lower part) of the inner sash frame 34, as shown in (B) of FIG. 4, a groove portion 343A is formed, and a resin sliding piece 343 is provided which is slidably guided in the X-axis direction along the lower rail 222 arranged in the groove portion 343A. The sliding piece 343 is arranged at a minute interval in the Z-axis direction with respect to the lower rail 222. Thereby, the slide movement of the inner shutter Here, for example, when the wind pressure load in the -Z axis direction is received from the outdoor side, the inner sash 3 is slightly displaced toward the indoor side in the Z axis direction. At this time, the displacement amount in the Z axis direction at the upper part of the inner sash 3 can be larger than the displacement amount in the Z axis direction at the lower part of the inner sash 3.

[0012] The outer sash 4 is arranged on the +Z axis direction side with respect to the inner sash 3, and includes a face material 47 composed of an upper frame 41, a lower frame 42, a door tip frame 43, an outer mating frame 44, a glass panel, etc., and these are configured by frame assembly in a vertical overlapping manner. The upper frame 41, the lower frame 42, the door tip frame 43, and the outer mating frame 44 are extrusion molded and are formed with hollow portions along their respective longitudinal directions. The upper frame 41 and the lower frame 42 are along the X axis direction, the door tip frame 43 and the outer mating frame 44 are along the Y axis direction, and the outer mating frame 44 constitutes the outer mating portion in the sliding window 1. The upper frame 41, the lower frame 42, the door tip frame 43, and the outer mating frame 44 are provided with aluminum frame materials 41A, 42A, 43A, 44A as metal frame materials on the outdoor side and resin frame materials 41B, 42B, 43B, 44B on the indoor side. As shown in FIG. 2, a rail groove 411 along the X axis direction in which the upper rail 211 is arranged is formed in the aluminum frame material 41A of the upper frame 41. The aluminum frame material 42A of the lower frame 42 is provided with a door wheel 421 that is freely mounted on the lower rail 221 as described above, and is slidably in contact with the airtight material 223 as described above. As shown in Figure 4(A), a groove 432A is formed at the upper end of the door frame 43, and a resin sliding piece 432 is provided that slides along the upper rail 211 positioned in the groove 432A in the X-axis direction. The sliding piece 432 is positioned with a small gap in the Z-axis direction relative to the upper rail 211, thereby facilitating the sliding movement of the outer sash 4 when it opens and closes in the X-axis direction, and minimizing the displacement of the outer sash 4 in the Z-axis direction by making this gap small. Furthermore, as shown in Figure 4(B), a groove 433A is formed at the lower end of the door frame 43, and a resin sliding piece 433 is provided that slides along the lower rail 221 positioned in the groove 433A in the X-axis direction. The sliding piece 433 is positioned with a small gap in the Z-axis direction relative to the lower rail 221, thereby facilitating the sliding movement of the outer sash 4, which opens and closes in the X-axis direction, and minimizing the displacement of the outer sash 4 in the Z-axis direction by making the gap small. Note that the sliding pieces 432 and 433 are not provided with relief spaces 457, 467, etc., which will be described later. In this embodiment, since such sliding pieces 432 and 433 are provided on the door frame 43, for example, if a wind pressure load in the -Z-axis direction is applied to the sliding window 1 from the outside, the amount of displacement of the outer sash 4 in the -Z-axis direction on the door edge side may be less than or equal to the amount of displacement of the inner sash 3 in the -Z-axis direction. However, even with such displacement, when the sliding window 1 is closed, there is no portion of the inner sash 3 that faces the leading edge portion of the outer sash 4 in the Z-axis direction. Therefore, the problem of a gap forming between the outer sash 4 and the inner sash 3 at the leading edge portion of the outer sash 4, thereby reducing watertightness and airtightness, cannot occur. The outer meeting stile 44 is positioned to overlap the inner meeting stile 34 in the Z-axis direction when the sliding window 1 is closed, with the outer meeting stile 44 located on the +Z-axis side and the inner meeting stile 34 located on the -Z-axis side. The outer meeting stile 44 has a smoke-return piece 446 that extends from the interior facing surface 445 of the aluminum frame material 44A and is bent toward the door edge side of the outer sash 4 in the X-axis direction, forming a roughly L-shaped cross section. A contact portion 447 is formed from a part of the aluminum frame material 44A, having a flat surface along the X-axis direction, to which the tip of the aforementioned airtight fin 347 slides and abuts at a position toward the door edge side of the outer sash 4 in the X-axis direction, closer to the door edge side of the outer sash 4 in the X-axis direction than the smoke-return piece 446. The smoke-return piece 446 is positioned opposite the aforementioned smoke-return piece 346 in the Z-axis direction with a small gap between them when the sliding window 1 is closed (see Figure 3). As shown in Figure 4(A), the upper end (upper part) of the outer meeting stile 44 is provided with an upper sliding piece 45 (sliding piece) that is guided to slide along the upper rail 211 in the X-axis direction. Furthermore, as shown in Figure 4(B), the lower end (lower part) of the outer meeting stile 44 is provided with a lower sliding piece 46 (sliding piece) that is guided to slide along the lower rail 221 in the X-axis direction.

[0013] As shown in Figures 5 to 7, the upper sliding piece 45 has a main body portion 451 that is fitted from above into the hollow portion of the aluminum frame material 44A and provided at the upper end of the outer meeting frame 44, and a groove forming portion 453 that is formed in the main body portion 451 and forms a groove portion 452 in which the upper rail 211 is arranged. The groove-forming section 453 is formed by a pair of groove sides 454A, 454B and a groove bottom 455 continuous with the pair of groove sides 454A, 454B, and the groove section 452 is open on both sides and the top in the X-axis direction. The groove side 454A is positioned on the +Z-axis direction side and the groove side 454B is positioned on the -Z-axis direction side, and the upper rail 211 is positioned between the groove sides 454A, 454B. The groove side 454A is provided with a projection 456A that protrudes in the -Z-axis direction, and the groove side 454B is provided with a projection 456B that protrudes in the +Z-axis direction. The projections 456A, 456B are positioned at the center of the groove-forming section 453 in the X-axis direction. Therefore, the distance from each of the protrusions 456A and 456B to each of the ends of the groove forming section 453 in the X-axis direction can be made long and equal, and for example, compared to the case where the protrusions 456A and 456B are positioned closer to one end of the groove forming section 453, the protrusions 456A and 456B can be moved more stably in the +Z-axis direction toward the clearance space. The protrusion 456A is positioned in the outdoor portion located on the +Z-axis side relative to the groove section 452, and is positioned in a depth position that protrudes in the -Z-axis direction more than the depth position of both ends of the groove side section 454A in the X-axis direction. The protrusion 456B is positioned in the indoor portion located on the indoor side relative to the groove section 452, and is positioned in a depth position that protrudes in the +Z-axis direction more than the depth position of both ends of the groove side section 454B in the X-axis direction. In addition, the position of the protrusion 456A is positioned lower than the position of the protrusion 456B in order to facilitate the installation of the outer sash 4 into the window frame 2 in a sliding manner. The groove-forming section 453 is configured with a narrow section 456 having these protrusions 456A and 456B, and the groove width of the narrow section 456 is smaller than the groove width of both ends of the groove-forming section 453 in the X-axis direction. That is, the groove width dimension WA1 of the narrow section 456 in the Z-axis direction is smaller than the groove width dimension WA2 of both ends of the groove-forming section 453 in the Z-axis direction. Furthermore, the narrow section 456 is inclined towards the +Z-axis direction from the protrusion 456A toward both ends of the groove-forming section 453, and is inclined towards the -Z-axis direction from the protrusion 456B toward both ends of the groove-forming section 453. In this upper sliding piece 45, a relief space 457 is formed in the outdoor-facing portion of the main body 451, which is located on the +Z-axis side of the groove 452 and on the +Z-axis side of the narrow portion 456. The relief space 457 is formed adjacent to the narrow portion 456 and, when provided at the upper end of the outer meeting frame 44, cooperates with the outer meeting frame 44 to form a hollow portion. The relief space 457 is formed continuously above and below the narrow portion 456 in the outdoor-facing portion of the groove 452 and is in communication with the groove 452. For this reason, in the outdoor-facing portion of the groove 452, the narrow portion 456 is shaped to bridge the groove forming portion 453 to both ends in the X-axis direction, and is configured to undergo elastic deformation more easily than other parts of the upper sliding piece 45. With this configuration, when the upper sliding piece 45 is pressed against the upper rail 211 in the -Z axis direction, the elastic deformation region of the groove forming portion 453, which can deform and move in the +Z axis direction to escape into the relief space 457 as shown in Figure 10(A), is a region that is continuous in the X axis direction except for both ends of the groove forming portion 453. Since the elastic deformation region can be set as large as possible in the X axis direction, the amount of movement of the narrow portion 456 toward the relief space 457 can be increased.

[0014] As shown in Figures 8 and 9, the lower sliding piece 46 has a main body portion 461 that is fitted from below into the hollow portion of the aluminum frame material 44A and provided at the lower end of the outer meeting frame 44, and a groove forming portion 463 that is formed in the main body portion 461 and forms a groove portion 462 in which the lower rail 221 is arranged. The main body portion 461 has a side piece portion 461A that is raised upward, and the side piece portion 461A is arranged along the inner surface of the aluminum frame material 44A. The groove-forming portion 463 is formed by a pair of groove-side portions 464A, 464B and a groove-bottom portion 465 that is continuous with the pair of groove-side portions 464A, 464B, and the groove portion 462 is open on both sides and the bottom in the X-axis direction. The groove-bottom portion 465 is penetrated in the Y-axis direction between its two ends in the X-axis direction. This penetration portion is positioned opposite the narrow-width portion 466, which will be described later, in the Z-axis direction. Because the groove-bottom portion 465 is penetrated in this way, the narrow-width portion 466 is configured to easily undergo elastic deformation in the Z-axis direction. The groove-side portion 464A is positioned on the +Z-axis direction side and the groove-side portion 464B is positioned on the -Z-axis direction side, and the lower rail 221 is positioned between the groove-side portions 464A, 464B. The groove-side portion 464A is provided with a projection 466A that protrudes in the -Z-axis direction, and the groove-side portion 464B is provided with a projection 466B that protrudes in the +Z-axis direction. The protrusions 466A and 466B are positioned at the center of the groove-forming portion 463 in the X-axis direction. Therefore, the distance from each of the protrusions 466A and 466B to each of the ends of the groove-forming portion 463 in the X-axis direction can be made long and equal, and compared to the case where the protrusions 466A and 466B are positioned closer to one end of the groove-forming portion 463, for example, the protrusions 466A and 466B can be moved more stably in the +Z-axis direction toward the clearance space. The protrusion 466A is positioned in the outdoor side portion located on the +Z-axis side relative to the groove portion 462, and is positioned at a depth that protrudes more in the -Z-axis direction than the depth of both ends of the groove side portion 464A in the X-axis direction. The protruding portion 466B is located on the indoor side of the groove portion 462, and is positioned at a depth that protrudes in the +Z axis direction more than the depth positions of both ends of the groove side portion 464B in the X axis direction. The groove-forming section 463 is configured with a narrow section 466 having these protrusions 466A and 466B, and the narrow section 466 has a groove width smaller than the groove width at both ends of the groove-forming section 463 in the X-axis direction. That is, the groove width dimension WB1 of the narrow section 466 in the Z-axis direction is smaller than the groove width dimension WB2 of both ends of the groove-forming section 463 in the Z-axis direction. Furthermore, the narrow section 466 is inclined towards the +Z-axis direction from the protrusion 466A toward both ends of the groove-forming section 463, and is inclined towards the -Z-axis direction from the protrusion 466B toward both ends of the groove-forming section 463. In the lower sliding piece 46, a relief space 467 (outdoor relief space) is formed in the outdoor portion of the main body 461 located on the +Z axis side of the groove 462 and on the +Z axis side of the narrow portion 466, and the relief space 467 is formed adjacent to the narrow portion 466. Furthermore, regarding the relief space 467, in this embodiment a hollow portion is formed in the lower sliding piece 46 itself, but it is not limited to this, and for example, when provided at the lower end of the outer meeting frame 44, it may be configured to cooperate with the outer meeting frame 44 to form a hollow portion. The relief space 467 is formed in the outdoor portion of the groove 462 as a rectangular hollow portion in plan view that penetrates in the Y axis direction, leaving both ends in the X axis direction of the main body 461 intact. Therefore, in the portion on the outdoor side of the groove portion 462, the narrow portion 466 is shaped to bridge to both ends of the groove forming portion 463 in the X-axis direction, and is configured to undergo elastic deformation more easily than other parts of the lower sliding piece 46. With this configuration, as shown in Figure 10(B), the elastic deformation region of the groove forming portion 463 that can deform and move in the +Z axis direction to escape into the relief space 467 is a region that is continuous in the X-axis direction except for both ends of the groove forming portion 463, and the elastic deformation region can be set as large as possible in the X-axis direction, so that the amount of movement of the narrow portion 466 toward the relief space 467 can be increased.

[0015] Furthermore, the lower sliding piece 46 is formed symmetrically with respect to a virtual line along the X-axis, passing through its central position in the Z-axis direction. For this reason, a relief space 467 (indoor relief space) is also formed in the indoor portion of the main body 461, which is located on the -Z-axis side of the groove 462 and on the -Z-axis side relative to the narrow portion 466, as described above. However, even when the outer sash 4 is subjected to a wind pressure load in the -Z-axis direction from the outside, the narrow portion 466 will not escape in the -Z-axis direction toward the indoor relief space 467, and even if this indoor relief space 467 is formed, it will not contribute to improving watertightness or airtightness. However, for example, if the lower sliding piece 46 is installed in opposite directions indoors and outdoors in the Z-axis direction, the arrangement of the indoor relief space 467 and the outdoor relief space 467 will be reversed indoors and outdoors, so even with this installation, it is possible to create a configuration in which the narrow portion 466 can escape into the outdoor relief space 467. Therefore, by forming a clearance space 467 in both the indoor and outdoor portions of the lower sliding piece 46, the degree of freedom in the installation location of the lower sliding piece 46 is increased, improving its versatility.

[0016] The aforementioned sliding window 1 behaves as follows when subjected to a wind pressure load in the -Z axis direction from the outside to the inside. Note that the sliding window 1 is in the closed position. The inner and outer sashes 3 and 4, subjected to wind pressure loads, are displaced in the -Z axis direction. Specifically, the upper part of the inner sash 3 displaces in the -Z-axis direction while crushing the airtight material 214 within the Z-axis distance between the upper part and the retaining groove 212, while the lower part of the inner sash 3 displaces in the -Z-axis direction while crushing the airtight material 224 within the Z-axis distance between the sliding pieces 333, 343 and the lower rail 222 (see Figure 2). As the inner sash 3 displaces in this way, it is pressed against the airtight material 214, 224, etc., thus increasing the watertightness and airtightness of the inner sash 3 itself. Note that the distance between the upper part of the inner sash 3 and the retaining groove 212 is greater than the distance between the sliding pieces 333, 343 and the lower rail 222, so the amount of displacement in the -Z-axis direction can be particularly large at the upper part of the inner sash 3. Meanwhile, the upper part of the outer sash 4 displaces in the -Z-axis direction while crushing the airtight material 213 within the Z-axis direction spacing between the sliding piece 432 and the upper sliding piece 45 and the upper rail 211, and the lower part of the outer sash 4 displaces in the -Z-axis direction while crushing the airtight material 223 within the Z-axis direction spacing between the sliding piece 433 and the lower sliding piece 46 and the lower rail 221. In this embodiment, the spacing between the sliding piece 432 and the upper rail 211, the spacing between the upper sliding piece 45 and the upper rail 211, the spacing between the sliding piece 433 and the lower rail 221, and the spacing between the lower sliding piece 46 and the lower rail 221 are approximately the same as the spacing between the sliding piece 333 and the lower rail 222 of the inner sash 3. Here, in the leading edge portion of the outer sash 4, which receives wind pressure load from the outside, the sliding pieces 432 and 433, which do not have relief spaces 457 and 467 formed therein, are pressed against the upper rail 211 and lower rail 221. Therefore, similar to the sliding pieces 333 and 343 of the inner sash 3 described above, the contact portion with the lower rail 222 does not undergo elastic deformation in the +Z axis direction and move while deforming to escape into the relief spaces 457 and 467. For this reason, the amount of displacement in the -Z axis direction at the leading edge portion of the outer sash 4 is within the Z axis direction spacing between the sliding pieces 432 and 433 and the upper rail 211 and lower rail 221 in the outer sash 4 when it is not receiving wind pressure load, and the amount of displacement in the -Z axis direction at the leading edge portion of the outer sash 4 is approximately equivalent to the amount of displacement in the -Z axis direction at the lower part of the inner sash 3. In contrast, at the meeting side portion of the outer sash 4, which receives wind pressure load from the outside, the upper sliding piece 45, which has a relief space 457 formed therein, is pressed against the upper rail 211 and the lower rail 221. As a result, the narrow portion 456 that abuts the upper rail 211 deforms elastically and moves in the +Z axis direction so as to escape into the relief space 457, as shown in Figure 10(A). On the other hand, the lower sliding piece 46, which has a relief space 467 formed therein, is pressed against the lower rail 221. As a result, the narrow portion 466 that abuts the lower rail 221 deforms elastically and moves in the +Z axis direction so as to escape into the relief space 467, as shown in Figure 10(B). Therefore, when the outer sash 4 is subjected to wind pressure load, the distance between the upper sliding piece 45 and the upper rail 211, and the distance between the lower sliding piece 46 and the lower rail 221 are greater than the distance when the outer sash 4 is not subjected to wind pressure load. As a result, the amount of displacement in the -Z axis direction at the meeting side portion of the outer sash 4 may exceed the amount of displacement in the -Z axis direction at the door-edge portion of the outer sash 4 and at the upper and lower parts of the inner sash 3. For this reason, in the sliding window 1, the displacement of the inner meeting frame 34 of the inner sash 3 in the -Z axis direction is suppressed to be greater than that of the outer meeting frame 44 of the outer sash 4, reducing the risk of the airtight fin 347 separating from the contact portion 447 and creating communication between the outdoor and indoor spaces, thereby improving the watertightness and airtightness of the sliding window 1 when subjected to wind pressure load.

[0017] According to the sliding window 1 described above, by providing the upper sliding piece 45 and lower sliding piece 46 with the above configuration at the upper end (upper part) and lower end (lower part) of the outer meeting stile 44 of the outer sash 4, the gap between the upper sliding piece 45 and the upper rail 211 and the gap between the lower sliding piece 46 and the lower rail 221 can be made narrow during normal operation, thereby suppressing rattling and noise in the Z-axis direction of the outer sash 4. On the other hand, when the sliding window 1 is subjected to wind pressure load from the outside, As a result of the elastic deformation of the groove-forming portions 453 and 463, the narrow portions 456 and 466 deform and move in the +Z axis direction so as to escape into the escape spaces 457 and 467. This makes it possible to increase the amount of displacement in the -Z axis direction, especially around the outer meeting stile 44, and effectively suppress the formation of a gap between the inner meeting stile 34 and the outer meeting stile 44 that connects the outdoor space and the indoor space, as the inner meeting stile 34 of the inner sash 3 separates from the outer meeting stile 44 in the -Z axis direction. Furthermore, it is conceivable to suppress the formation of the gap by, for example, increasing the size of the airtight materials 214, 224 to increase the area in which the inner sash 3 contacts the airtight materials 214, 224 and reducing the amount of displacement of the inner sash 3 toward the interior. However, in this case, as the area in which the inner sash 3 contacts the airtight materials 214, 224 increases, the resistance force against the opening and closing movement of the inner sash 3 when it is opened and closed in the X-axis direction increases, which may make it difficult to open and close the inner sash 3 smoothly. Alternatively, it is conceivable to suppress the formation of the gap by, for example, using a sliding piece on the outer sash 4 that increases the distance in the Z-axis direction between the upper rail 211 and the lower rail 221 in the normal operating state. However, in this case, there is a risk that the rattle of the outer sash 4 in the Z-axis direction will increase, or that abnormal noises will be generated when the outer sash 4 hits the upper rail 211 or the lower rail 222. In these cases, the sliding window 1 of this embodiment uses the upper sliding piece 45 and lower sliding piece 46 with the configuration described above, eliminating the need to enlarge the airtight material 214, 224, etc., or to use sliding pieces on the outer sash 4 that increase the distance in the Z-axis direction between the upper rail 211 and the lower rail 221 in the normal operating state. This allows the inner sash 3 to open and close smoothly, and suppresses rattling and noise in the Z-axis direction of the outer sash 4. Furthermore, for example, if a component such as a retaining part that prevents the outer sash 4 from coming off to the outside is placed in the relief spaces 457, 467 formed in the upper sliding piece 45 and lower sliding piece 46 provided on the outer meeting frame 44, the groove-forming portions 453, 463 of the upper sliding piece 45 and lower sliding piece 46 would no longer be able to elastically deform to allow the narrow portions 456, 466 to escape into the relief spaces 457, 467. However, in this embodiment, the relief spaces 457, 467 are empty spaces in which nothing is placed, so the groove-forming portions 453, 463 are able to elastically deform to allow the narrow portions 456, 466 to escape into the relief spaces 457, 467.

[0018] [Differentiation] In the above embodiment, the narrow sections 456 and 466 are provided continuously at both ends of the groove-forming sections 453 and 463. However, the embodiment is not limited to this, and a narrow section 500 may be provided instead of the narrow section 456, as shown in the modified example in Figures 11 and 12. In this modified example, the narrow section 500 is provided in the upper sliding piece 45. The narrow section 500 has protrusions 456A and 456B formed at its upper part and extends along the Y-axis direction, and is divided in the X-axis direction with respect to both ends of the groove-forming section 453. The lower part of the narrow section 500 is continuous with the groove side. In this case, when the outer sash 4 receives a wind pressure load from the outside, the narrow section 500 is pressed against the upper rail 211 and moves, particularly the upper part, to escape into the escape space 457 due to elastic deformation. For example, similar to the upper sliding piece 45 in the modified example described above, the lower sliding piece 46 may also be provided with a narrow portion 500 instead of the narrow portion 466.

[0019] In the above embodiment, relief spaces 457 and 467 are formed in the upper sliding piece 45 and the lower sliding piece 46. However, the embodiment is not limited to this, and relief spaces 457 and 467 do not necessarily have to be formed in the upper sliding piece 45 and the lower sliding piece 46 individually. For example, even if relief spaces 457 and 467 are not formed in the upper sliding piece 45 and the lower sliding piece 46 individually, if a recess is formed in the mounting surface such as the outer meeting frame 44, and the upper sliding piece 45 and the lower sliding piece 46 are installed on the outer sash 4, the relief spaces 457 and 467 may be formed by the cooperation of the recess and the narrow portions 456 and 466 of the upper sliding piece 45 and the lower sliding piece 46. In the above embodiment, the upper and lower ends of the door frame 43 of the outer sliding door 4 are provided with sliding pieces 432 and 433, which do not have relief spaces 457 and 467 formed therein. However, the embodiment is not limited to this, and relief spaces 457 and 467 may be provided, similar to the upper sliding piece 45 and lower sliding piece 46 provided at the upper and lower ends of the outer meeting stile 44. In the above embodiment, the building fixture is a sliding window 1 configured so that the outer sash 4 and the inner sash 3 are movable sashes that can slide against each other in the X-axis direction. However, it is not limited to this, and any sliding window is acceptable. For example, the building fixture may be a single-sliding window in which the inner sash 3 is fixed to the window frame 2 in the X-axis direction and the outer sash 4 is a movable sash that can be opened and closed in the X-axis direction. Alternatively, the building fixture may be a single-sliding window in which the outer sash 4 is fixed to the window frame 2 in the X-axis direction and the inner sash 3 is a movable sash that can be opened and closed in the X-axis direction. In the above embodiment, a lower sliding piece 46 is provided at the lower end of the outer meeting stile 44, but the embodiment is not limited to this. For example, even if a sliding piece without a relief space 467 is provided instead of the lower sliding piece 46, if no gap is formed between the lower part of the outer meeting stile 44 and the lower part of the inner meeting stile 34 when the sliding window 1 is subjected to wind pressure load from the outside, a sliding piece without a relief space 467 may be provided at the lower end of the outer meeting stile 44 instead of the lower sliding piece 46. In this case, the only sliding piece with a relief space 457 in the outer meeting stile 44 is the upper sliding piece 45 provided at the upper end of the outer meeting stile 44. Furthermore, even if a sliding piece without a relief space 467 is provided instead of the upper sliding piece 45, if no gap is formed between the upper part of the outer meeting stile 44 and the upper part of the inner meeting stile 34 when the sliding window 1 is subjected to wind pressure load from the outside, a sliding piece without a relief space 467 may be provided at the upper end of the outer meeting stile 44 instead of the upper sliding piece 45. In this case, the only sliding piece with a relief space 467 in the outer meeting stile 44 will be the lower sliding piece 46 provided at the lower end of the outer meeting stile 44. In the above embodiment, a retaining groove 212 is formed in the upper frame 21, but it is not limited to this, and an upper rail along the X-axis direction may be formed instead of the retaining groove 212. In this case, the inner sash 3 is configured to slide along the upper rail instead of the configuration described above. Even when such an upper rail is formed, it is sufficient that the displacement of the outer sash 4 in the -Z-axis direction when the sliding window 1 is subjected to wind pressure load from the outside is greater than or equal to the displacement of the inner sash 3 in the -Z-axis direction, by providing at least an upper sliding piece 45. In the above embodiment, the upper sliding piece 45 has an outdoor-facing clearance space 457 relative to the narrow portion 456. However, it is not limited to this, and an outdoor-facing clearance space 457 may also be formed on the outdoor side relative to the narrow portion 456. In this case, even if the upper sliding piece 45 is installed facing in opposite directions indoors and outdoors, the narrow portion 456 can be displaced outwards while escaping into the clearance space 457, thereby improving the versatility of the upper sliding piece 45. In the above embodiment, the lower sliding piece 46 has relief spaces 467 on both the outdoor and indoor sides relative to the narrow portion 466. However, it is not limited to this, and relief spaces 467 may be formed only on the outdoor side relative to the narrow portion 466, with no relief space 467 on the indoor side. In the above embodiment, the protrusions 456A, 456B of the narrow portion 456 and the protrusions 466A, 466B of the narrow portion 466 are located at the central position in the X-axis direction of the groove forming portions 453, 463. However, the embodiment is not limited to this, and the protrusions 456A, 456B, 466A, 466B may be located off-center in the X-axis direction from the central position, as long as they can move toward the relief space 457, 467 in the +Z-axis direction due to the elastic deformation of the groove forming portions 453, 463. Furthermore, multiple protrusions 456A, 456B, 466A, 466B may be formed side by side in the X-axis direction. In the above embodiment, the elastic deformation region of the groove-forming portion 453, 463 is a region that is continuous in the X-axis direction except for the portions at both ends of the groove-forming portion 453, 463. However, it is not limited to this, and for example, the elastic deformation region may be a region that is separated from the portions at both ends of the groove-forming portion 453, 463.

[0020] [Summary of the invention] (1) The joinery of the present invention comprises a frame on which a rail is provided and a sliding screen disposed within the frame, wherein the sliding screen is provided with a sliding piece having a groove-forming portion that forms a groove in which the rail is arranged, the groove-forming portion has a narrow portion that constitutes a groove width smaller than the groove width at both ends thereof, the narrow portion has a protruding portion in the outdoor portion located on the outdoor side relative to the groove, which is positioned at a depth that protrudes inward from the interior side than the depth position of both ends of the groove-forming portion, and at least when the sliding piece is provided on the sliding screen, a clearance space is formed in the outdoor portion located on the outdoor side relative to the narrow portion in the depth direction and on the outdoor side relative to the narrow portion, and the groove-forming portion is configured to move the narrow portion outward toward the clearance space by elastic deformation when the narrow portion is pressed against the rail toward the interior side in the depth direction. According to the joinery of the present invention, by creating a relief space at the aforementioned position, when the narrow portion of the groove-forming part is pressed against the rail, the narrow portion moves outward to escape into the relief space due to the elastic deformation of the groove-forming part. This allows for a larger amount of displacement of the sliding door towards the interior. For example, when there is an inner sliding door and an outer sliding door, and the sliding door constitutes the outer sliding door, if a wind pressure load is applied to the inner and outer sliding doors, the risk of the inner sliding door being displaced more than the outer sliding door and a gap being formed between them can be reduced, thereby improving the watertightness and airtightness of the joinery. In addition, because the narrow section can move into the escape space, the amount of displacement of the shoji screen toward the interior can be increased. For example, there is no need to increase the size of the airtight material interposed between the frame and the shoji screen in order to improve watertightness or airtightness. Nor is there a need to increase the gap in the depth direction between the rail and the sliding piece in order to increase the amount of displacement of the shoji screen toward the interior. Therefore, if the shoji screen is capable of sliding, the resistance force against such sliding movement may increase, rattling of the shoji screen may increase, or abnormal noises may occur. The joinery may consist of sliding windows such as sliding windows in which the inner and outer sashes are arranged to slide in the direction along the rail, or single sliding windows in which one of the inner or outer sashes is fixed to the frame in the direction along the rail, and the outer sash is arranged to slide in the direction along the rail. (2) In the joinery of the present invention, an inner sash that is arranged on the interior side and an outer sash that is arranged on the exterior side are provided within the frame, the outer sash is made up of the sash, and the amount of displacement of the outer sash toward the interior in the depth direction may be greater than or equal to the amount of displacement of the inner sash toward the interior in the depth direction. With this configuration, in the outer sash, the narrow portion of the sliding piece can be moved into the clearance space, thus reducing rattling in the depth direction of the outer sash without increasing the resistance force against the sliding movement of the outer sash, and also reducing the generation of abnormal noise. Furthermore, by making the amount of displacement of the outer sash toward the interior in the depth direction greater than the amount of displacement of the inner sash toward the interior in the depth direction, the formation of a gap between the inner and outer sashes can be suppressed, thereby improving watertightness and airtightness. (3) In the joinery of the present invention, an inner sash that is arranged on the interior side and an outer sash that is arranged on the exterior side are arranged within the frame, and at least the upper part of the inner sash is held in place by being swallowed into a retaining groove formed in the frame, and the outer sash is made up of the sash, and the sliding piece may be provided at least on the upper part of the outer sash. With this configuration, the upper part of the inner sash is held in place by being swallowed into the retaining groove of the frame. As a result, the distance between the inner sash and the retaining groove in the depth direction tends to be larger than the distance between the sliding piece on the outer sash and the rail in the depth direction. However, as mentioned above, the elastic deformation of the groove-forming part causes the narrow section to move into the escape space, which increases the amount of displacement of the outer sash toward the interior. This allows the outer sash to be displaced more than the amount of displacement of the inner sash toward the interior, thus reducing the formation of gaps between the inner and outer sashes when wind pressure loads are applied to them. (4) In the joinery of the present invention, an inner sash that is arranged on the interior side and an outer sash that is arranged on the exterior side are provided within the frame, the inner sash has an inner meeting portion and the outer sash has an outer meeting portion that overlaps the inner meeting portion in the depth direction, the outer sash is made of the sash, and the sliding piece may be provided on the outer meeting portion. With this configuration, the amount of displacement toward the interior side, particularly in the outer meeting joint and its surroundings, can be increased, suppressing the formation of gaps in the depth direction between the inner and outer meeting joints, thereby improving watertightness and airtightness. Furthermore, in at least the cases described in (2), (3), and (4) above, the joinery may consist of a sliding window in which both the inner and outer sashes are movable sashes that can move in the sliding direction, or it may consist of a single-sliding window in which one of the sashes, the inner or outer sash, is fixed and immovable in the sliding direction, and the other sash is movable and can move in the sliding direction. In the case of a single-sliding window in this manner, only the movement of one of the inner or outer sashes in the X-axis direction may be restricted to make it a fixed sash. (5) The sliding piece of the present invention is a sliding piece used in the building fitting of the present invention as described above. According to the sliding piece of the present invention, it is possible to construct a sliding piece that can exhibit the same effects as those of the building fixture of the present invention described above. (6) The sliding piece of the present invention may have the protruding portion positioned at least at the center of the groove forming portion in the direction along the rail. With this configuration, the distance from the protruding portion to each of the ends of the groove-forming portion can be made long and equal. Therefore, compared to, for example, the case where the protruding portion is positioned closer to one end of the groove-forming portion, the protruding portion can be moved significantly and stably toward the outside towards the escape space. (7) In the sliding piece of the present invention, the narrow portion further has a protruding portion in the indoor portion located on the indoor side relative to the groove portion, which is positioned to protrude outward from the outdoor side than the visible position of both ends of the groove forming portion, and the relief space may be provided in both the outdoor and indoor portions relative to the groove portion and the narrow portion. With this configuration, even if the sliding piece is positioned in the opposite direction in the depth direction and installed on the shoji screen, the narrow portion can be moved into the clearance space, as described above. Therefore, the versatility of the sliding piece can be improved. (8) In the sliding piece of the present invention, the elastic deformation region of the groove-forming portion may be a region that is continuous in the direction along the rail, except for the portions at both ends of the groove-forming portion. With this configuration, the elastic deformation region can be set to be larger, and the amount of movement of the narrow section toward the relief space can be increased. [Explanation of symbols]

[0021] 1...Sliding window (joinery), 2...Window frame (frame body), 21...Upper frame, 211...Upper rail (rail), 212...Retaining groove, 213...Airtight material, 214...Airtight material, 21A, 22A, 23A...Aluminum frame material, 21B, 22B, 23B...Resin frame material, 22...Lower frame, 221, 222...Lower rail (rail), 223, 224...Airtight material, 23...Vertical frame, 3...Inner sash (sash) Child), 31, 41… Upper frame, 31A, 32A, 33A, 34A, 41A, 42A, 43A, 44A… Aluminum frame material, 31B, 32B, 33B, 41B, 42B, 43B, 44B… Resin frame material, 32, 42… Lower frame, 321, 421… Door roller, 33, 43… Door edge frame, 332, 333, 342, 343, 432, 433… Sliding piece, 333A, 343A ,432A,433A,452,462...groove section, 34...inner meeting frame, 345...outer surface section, 346,446...smoke return piece section, 347...airtight fin (airtight material), 37,47...face material, 4...outer shoji (shoji), 411...rail groove, 44...outer meeting frame, 445...inner surface section, 447...contact section, 45...upper sliding piece (sliding piece), 451,461...main Body, 453, 463... Groove forming section, 454A, 454B, 464A, 464B... Groove side section, 455, 465... Groove bottom section, 456, 466... ​​Narrow section, 456A, 456B, 466A, 466B... Protruding section, 457, 467... Relief space, 46... Lower sliding piece (sliding piece), 461A... Side piece section, 500... Narrow section, WA1, WA2, WB1, WB2... Groove width dimension.

Claims

1. A joinery comprising a frame on which rails are provided, and a sliding screen placed within the frame, The aforementioned sliding screen is provided with a sliding piece having a groove-forming portion that forms a groove portion in which the rail is arranged. The groove-forming portion has narrow sections that form a groove width smaller than the groove width at both ends thereof. The narrow portion has a projection that is positioned on the outdoor side relative to the groove, and is located in a position that protrudes more towards the indoor side than the projection of both ends of the groove forming portion. At least when the sliding piece is provided on the shoji screen, a clearance space is formed in the outdoor portion located on the outdoor side of the groove in the depth direction and on the outdoor side relative to the narrow portion. The groove-forming portion is configured such that when the narrow portion is pressed against the rail toward the interior side in the depth direction, the narrow portion moves toward the exterior side toward the relief space side by elastic deformation. A type of joinery characterized by its features.

2. In the joinery described in claim 1, Within the frame, an inner sash is arranged on the indoor side and an outer sash is arranged on the outdoor side. The aforementioned outer sliding door is composed of the aforementioned sliding door, The amount of displacement of the outer sash towards the interior in the depth direction is greater than or equal to the amount of displacement of the inner sash towards the interior in the depth direction. A type of joinery characterized by its features.

3. In the joinery described in claim 1, Within the frame, an inner sash is arranged on the indoor side and an outer sash is arranged on the outdoor side. At least the upper part of the inner sliding door is held in place by being swallowed into a retaining groove formed in the frame. The aforementioned outer sliding door is composed of the aforementioned sliding door, The sliding piece is provided at least on the upper part of the outer sash. A type of joinery characterized by its features.

4. In the joinery described in claim 1, Within the frame, an inner sash is arranged on the indoor side and an outer sash is arranged on the outdoor side. The inner sash has an inner meeting portion, and the outer sash has an outer meeting portion that overlaps the inner meeting portion in the depth direction. The aforementioned outer sliding door is composed of the aforementioned sliding door, The sliding piece is provided on the outer meeting portion. A type of joinery characterized by its features.

5. A sliding piece used in a joinery according to any one of claims 1 to 4.

6. In the sliding piece according to claim 5, The protruding portion is positioned at least at the central position of the groove-forming portion in the direction along the rail. A sliding piece characterized by the following features.

7. In the sliding piece according to claim 5, The narrow portion further has a protruding portion located on the indoor side relative to the groove, which is positioned at a depth that protrudes outward from the depth of both ends of the groove forming portion. The aforementioned escape space is provided on both the outdoor and indoor sides of the groove and the narrow section. A sliding piece characterized by the following features.

8. In the sliding piece according to claim 5, The elastically deformable region of the groove-forming portion is a continuous region in the direction along the rail, excluding the portions at both ends of the groove-forming portion. A sliding piece characterized by the following features.

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