Fitting

Abstract

To provide a fitting capable of maintaining airtightness between an outer meeting stile and an inner meeting stile.SOLUTION: In a sliding window 1, an outer sliding sash 4 has a meeting stile 44 formed by combining a metal stile material 441 and a resin stile material 541, and an inner sliding sash 6 has a meeting stile 64 formed by combining a metal stile material 641 and a resin stile material 741. The meeting stile 44 and the meeting stile 64 each have smoke deflector portions 447, 647 that overlap each other in the Z-axis direction. An airtight material 14 is attached to the meeting stile 64, positioned closer to the indoor space than the smoke deflector portion 647 and blocking communication between the indoor space and the outdoor space between the meeting stile 64 and the airtight material, and the metal stile material 441 of the meeting stile 44 has a metal abutment portion 448 positioned opposite the meeting stile 64, and an airtight material 14 slidably abuts against the abutment portion 448.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to fittings such as sliding windows and single-sliding windows in which outer and inner shutters are arranged within a frame.

Background Art

[0002] Conventionally, there has been known a sash in which an outdoor sash shutter and an indoor sash shutter are slidably installed inside a sash frame (see Patent Document 1). The outdoor sash shutter includes a summoned outer frame (outer summoned frame) having a profile formed of aluminum and a resin cover material located on the indoor side. The indoor sash shutter includes a summoned inner frame (inner summoned frame) having a profile formed of aluminum and a resin cover material covering the surface of the profile facing the indoor side. The summoned inner frame is provided with a contact portion that contacts or is spaced apart from the resin cover material of the summoned outer frame with a slight gap.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in the sash described in Patent Document 1, when the protruding portion of the summoned inner frame is brought into contact with the resin cover material of the summoned outer frame, the resin cover material of the summoned outer frame may be deformed due to repeated thermal contraction caused by temperature changes or the like, and it may be difficult to maintain the airtightness without being able to maintain the contact state.

[0005] An object of the present invention is to provide a fitting capable of maintaining airtightness between an outer summoned frame and an inner summoned frame.

Means for Solving the Problems

[0006] The fitting of the present invention is a sliding window in which an outer shutter and an inner shutter are arranged within a frame body. The outer shutter has an outer assembled frame formed by combining a metal frame member made of metal and a resin frame member made of resin. The inner shutter has an inner assembled frame formed by combining a metal frame member made of metal and a resin frame member made of resin. The outer assembled frame and the inner assembled frame each have a smoke return portion that overlaps with each other in the expected direction. An airtight material that is arranged on the indoor space side of the smoke return portion and blocks the indoor and outdoor spaces between the outer assembled frame is attached to the inner assembled frame. The metal frame member of the outer assembled frame has a metal contact portion that is arranged to face the inner assembled frame, and the airtight material is slidably contacted with the contact portion.

Effect of the Invention

[0007] According to the present invention, it is possible to provide a fitting that can maintain the airtightness between the outer assembled frame and the inner assembled frame.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Mode for Carrying Out the Invention

[0009] [Configuration of this Embodiment] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The sliding window 1, which is a fitting shown in FIGS. 1 to 3, is installed in an opening of a building such as a building, and includes a window frame 2 (frame body), an outer shutter 4 and an inner shutter 6 that are slidably arranged in a sliding manner within the window frame 2. In the following description, the left - right direction of the sliding window 1 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 prospective direction of the sliding window 1 is defined as the Z - axis direction (indoor - outdoor direction). The X, Y, and Z - axis directions are orthogonal to each other.

[0010] [Window Frame] The window frame 2 includes an upper frame 21, a lower frame 22, and left and right vertical frames 23, 24 that are assembled in a four - sided frame. The upper frame 21, the lower frame 22, and the left and right vertical frames 23, 24 are configured by connecting metal frame members 211, 221, 231, 241 on the outdoor side and resin frame members 311, 321, 331, 341 on the indoor side. The metal frame members 211, 221, 231, 241 are aluminum - made profiles that are extrusion - formed, and the resin frame members 311, 321, 331, 341 are synthetic - resin - made profiles that are extrusion - formed.

[0011] As shown in FIG. 4, in the upper frame 21, the metal frame member 211 has an upper frame prospective surface portion 212 (frame prospective surface portion) along the Z - axis direction, an outdoor finding surface portion 213 along the Y - axis direction that is continuous with the outdoor - side end of the upper frame prospective surface portion 212, and an indoor finding surface portion 214 along the Y - axis direction that is continuous with the indoor - side end of the upper frame prospective surface portion 212. An engaging groove portion 214A into which the resin frame member 311 is engaged is formed in the indoor finding surface portion 214. On the upper frame prospective surface portion 212, an outdoor - side upper rail 212A that protrudes downward from a position facing the outer shutter 4 in the Y - axis direction and a mounting piece portion 212B that is arranged on the indoor side of the upper rail 212A in the Z - axis direction and protrudes downward are continuously formed. At the lower end of the mounting piece portion 212B (a position on the inner peripheral side of the upper frame prospective surface portion 212), a concave groove portion 212E is formed into which an airtight material 10 (other outer airtight material) is fitted and mounted toward the outdoor side. At the lower end of the indoor finding surface portion 214, a concave groove portion 214E is formed into which an airtight material 10 (other inner airtight material) is fitted and mounted toward the outdoor side. Therefore, the indoor finding surface portion 214 is also configured as a mounting piece portion of the airtight material 10. Further, on the upper surface of the upper frame prospective surface portion 212, a plurality of screw hole forming portions 212D into which the upper portions of the left and right vertical frames 23, 24 are screwed are formed. Among the plurality of screw hole forming portions 212D, the outdoor side screw hole forming portion 212D is disposed at the base portion of the upper rail 212A. Among the plurality of screw hole forming portions 212D, the indoor side screw hole forming portion 212D is disposed between the mounting piece portion 212B and the indoor finding surface portion 214 and at a substantially central position in the Z-axis direction between them. Among the plurality of screw hole forming portions 212D, the intermediate screw hole forming portion 212D is disposed at a position slightly closer to the outdoor side from the base portion of the mounting piece portion 212B. Between the mounting piece portion 212B and the indoor finding surface portion 214, a groove forming piece 215 is provided which cooperates with the indoor finding surface portion 214 to form an indoor side guide groove 212C. The groove forming piece 215 has an upper piece portion 215A along the Z-axis direction, a side piece portion 215B continuous with the outdoor side end of the upper piece portion 215A and along the Y-axis direction, and an extension portion 215C continuous with the lower end of the side piece portion 215B and extending outward in the outdoor side in the Z-axis direction. The upper piece portion 215A and the side piece portion 215B form a main body portion having a substantially L-shaped cross section. On the side piece portion 215B, an engaged protrusion portion 215G protruding toward the mounting piece portion 212B side is formed. The extension portion 215C is disposed so as to cover the lower end of the mounting piece portion 212B from below, and its tip protrudes toward the mounting piece portion 212B side and abuts against the lower end of the mounting piece portion 212B. Here, at the base end portion of the indoor finding surface portion 214, a fitting groove into which the indoor side end of the upper piece portion 215A is fitted is formed. On the mounting piece portion 212B, an engaging piece 212F with which the engaged protrusion portion 215G is engaged is formed to protrude inward in the Z-axis direction. The engaging piece 212F extends inward in the Z-axis direction and its tip protrudes upward, and the engaged protrusion portion 215G is engaged with the tip. This groove forming piece 215 forms the bottom surface of the indoor side guide groove 212C along the X-axis direction and the outdoor side surface, and the indoor finding surface portion 214 forms the indoor side surface of the indoor side guide groove 212C, whereby the indoor side guide groove 212C is partitioned and formed. Further, the groove forming piece 215 holds the upper frame 41 movably in the X-axis direction at a position closer to the indoor side between the mounting piece portion 212B and the indoor finding surface portion 214.

[0012] The resin frame material 311 has a resin upper piece portion 312 along the Z-axis direction and an engaging piece 313 that protrudes upward from the resin upper piece portion 312 and whose tip is engaged with the engaging groove portion 214A. In the engaged state of the engaging piece 313 and the engaging groove portion 214A, the resin upper piece portion 312 is in contact with the lower end of the indoor finding surface portion 214.

[0013] As shown in FIG. 5, in the lower frame 22, the metal frame material 221 has a lower frame expected surface portion 222 (frame expected surface portion) along the Z-axis direction, a recess 223 that is continuous with the outdoor side end of the lower frame expected surface portion 222 and opens upward, and a hollow frame-shaped indoor side frame portion 224 that is continuous with the indoor side end of the lower frame expected surface portion 222 and rises upward. On the lower frame expected surface portion 222, an outdoor side lower rail 222A that rises upward from a position facing the outer shutter 4 in the Y-axis direction and a hollow frame-shaped frame portion 222C that is disposed at a position below the outer shutter 4 in the Y-axis direction are formed. Further, the lower frame expected surface portion 222 is inclined from the indoor side toward the outdoor side at a portion closer to the indoor side, and is inclined downward more gently than the above inclination from the indoor side toward the outdoor side at a portion closer to the outdoor side. The indoor side frame portion 224 has a rising surface portion 225 that rises upward in the Y-axis direction from the indoor side end of the lower frame expected surface portion 222, upper and lower continuous surface portions 226, 227 that are continuous with the rising surface portion 225 and extend indoors in the Z-axis direction, and an indoor finding surface portion 228 along the Y-axis direction that is continuous with the indoor side ends of the continuous surface portions 226, 227. At the upper end of the rising face portion 225, a lower rail 222B on the indoor side is formed. At the continuous portion of the rising face portion 225 and the upper continuous face portion 226, a mounting piece portion 229 extending outward on the outdoor side in the Z-axis direction is continuous. At the tip of the mounting piece portion 229 (a position on the inner circumferential side with respect to the lower frame expected face portion 222), a groove portion 229A into which an airtight material 10 (other outer airtight material) is fitted and mounted toward the outdoor side is formed. Also, on the upper surface of the mounting piece portion 229, an engaging portion 229B with which a resin cover material 15 is engaged is formed. The height position of the lower rail 222A on the outdoor side is set lower than the height position of the lower rail 222B on the indoor side. The indoor finding face portion 228 is formed to extend vertically with respect to the continuous face portions 226 and 227, and an engaging groove portion 228A with which a resin frame material 321 is engaged is formed. Also, at the upper tip of the indoor finding face portion 228, a groove portion 228B into which an airtight material 10 (other inner airtight material) is fitted and mounted toward the outdoor side is formed. For this reason, the indoor finding face portion 228 is also configured as a mounting piece portion on which the airtight material 10 is mounted. A resin cover material 16 is installed in the recess formed by the upper portion of the indoor finding face portion 228, the continuous face portion 226, and the lower rail 222B. The tip of the lower rail 222B bulges inward on the indoor side with respect to the portion on the base end side of the tip, and the resin cover material 16 is configured to be difficult to come off with the tip of the lower rail 222B and the groove portion 228B of the indoor finding face portion 228 on which the airtight material 10 is mounted. Note that a drain port (not shown) is appropriately formed in the metal frame material 221, and it is configured such that liquid such as rainwater can be drained to the outdoor side along the lower frame expected face portion 222.

[0014] The resin frame material 321 has a resin lower piece portion 322 along the Z-axis direction and an engaging piece 323 that protrudes downward from the resin lower piece portion 322 and whose tip is engaged with the engaging groove portion 228A. In the engaged state of the engaging piece 323 and the engaging groove portion 228A, the resin lower piece portion 322 is in contact with the upper end of the indoor finding face portion 228.

[0015] As shown in FIG. 6, the vertical frame 23 is the vertical frame on the door end side with respect to the outer shutter 4. In this vertical frame 23, the metal frame member 231 includes a vertical frame projected surface portion 232 (frame projected surface portion) along the Z-axis direction, an outdoor finding surface portion 233 continuous with the outdoor end of the vertical frame projected surface portion 232, and an engaging groove portion 234A formed continuously with the indoor end of the vertical frame projected surface portion and engaged with the resin frame member 331. On the vertical frame projected surface portion 232, an extending piece portion 232A extending in the X-axis direction from a position facing the outer shutter 4 in the Y-axis direction toward the vertical frame 24 side and a mounting piece portion 232B disposed on the indoor side of the extending piece portion 232A in the Z-axis direction and protruding in the X-axis direction toward the vertical frame 24 are continuously formed. At the tip of the mounting piece portion 232B (a position on the inner peripheral side of the vertical frame projected surface portion 232), a concave groove portion 232C into which the airtight material 10 (outer airtight material) is fitted and mounted facing the outdoor side is formed. Further, on the mounting piece portion 232B, an engaging protrusion portion 232D protruding toward the indoor side from a position on the back side of the concave groove portion 232C is formed.

[0016] The resin frame member 331 includes a resin projected surface portion 332 along the Z-axis direction, a resin frame portion 333 formed on the outer peripheral side of the resin projected surface portion 332, a resin side piece portion 335 continuous with the indoor end of the resin projected surface portion 332 via a stepped portion 334 and along the Y-axis direction, and an engaging piece 336 protruding from the resin side piece portion 335 toward the outer peripheral side and having a tip engaged with the engaging groove portion 234A. The resin frame portion 333 includes a pair of finding pieces 337, 338 extending from the resin projected surface portion 332 toward the outer peripheral side and a projected piece 339 continuous with the finding pieces 337, 338 and along the Z-axis direction. On the finding piece 337, an engaged protrusion portion 337A engaged with the engaging protrusion portion 232D is formed, and the tip of the finding piece 337 is in contact with the vertical frame projected surface portion 232. On the finding piece 338, a continuous piece 338A continuous with the engaging piece 336 is formed.

[0017] As shown in Fig. 7, the vertical frame 24 is the vertical frame on the door end side with respect to the sash 6. In this vertical frame 24, the metal frame member 241 has a vertical frame prospective surface portion 242 (a prospective surface portion of the frame) along the Z-axis direction, an outdoor finding surface portion 243 continuous with the outer end of the vertical frame prospective surface portion 242 on the outdoor side, and an indoor finding surface portion 244 continuous with the inner end of the vertical frame prospective surface portion 242 on the indoor side. The vertical frame prospective surface portion 242 has an extending piece portion 242A extending in the X-axis direction from a position facing the sash 6 in the Y-axis direction toward the vertical frame 23 side. A concave groove portion 244A into which an airtight material 10 (inner airtight material) is fitted in the outdoor direction is formed at the tip of the indoor finding surface portion 244 (a position on the inner peripheral side with respect to the vertical frame prospective surface portion 242). Thus, the indoor finding surface portion 244 is also configured as a mounting piece portion that is disposed on the indoor side of the extending piece portion 242A in the Z-axis direction and protrudes in the X-axis direction toward the vertical frame 23. Further, an engaging groove portion 244B for engaging a resin frame member 341 is formed in the indoor finding surface portion 244.

[0018] The resin frame member 341 has a resin side piece portion 342 along the Z-axis direction and an engaging piece 343 protruding from the resin side piece portion 342 to the outer peripheral side and having a tip engaged with the engaging groove portion 244B. Further, an abutting portion 343A that abuts against the tip of the indoor finding surface portion 244 in the engaged state of the engaging piece 343 and the engaging groove portion 244B is formed on the engaging piece 343.

[0019] As shown in Fig. 3, the outer shutter 4 and the inner shutter 6 are arranged differently from each other in the Z-axis direction so as to slide in the X-axis direction in a staggered manner. The outer shutter 4 is arranged closer to the outdoor side within the window frame 2. The inner shutter 6 is arranged on the indoor side with respect to the outer shutter 4, and a part of the inner shutter 6 slightly protrudes from the window frame 2 toward the indoor side, thereby reducing the expected dimension of the window frame 2 in the Z-axis direction. The outer shutter 4 and the inner shutter 6 are formed by assembling a frame body 45, 65 and panels 46, 66 (face materials) arranged inside the frame body 45, 65 in a four-sided frame structure. As shown in Figs. 1 to 3, the frame body 45, 65 is configured by assembling an upper frame 41, 61, a lower frame 42, 62, a door end frame 43, 63 (vertical frame), and a calling frame 44, 64 (vertical frame) on the four sides. The panels 46, 66 are composed of laminated glass. In the present embodiment, in the outer shutter 4, the frame body 45 is the outer frame body, the upper frame 41 is the outer upper frame, the lower frame 42 is the outer lower frame, the door end frame 43 is the outer door end frame, the calling frame 44 is the outer calling frame, and the panel 46 is the outer face material. Further, in the inner shutter 6, the frame body 65 is the inner frame body, the upper frame 61 is the inner upper frame, the lower frame 62 is the inner lower frame, the door end frame 63 is the inner door end frame, the calling frame 64 is the inner calling frame, and the panel 66 is the inner face material.

[0020] [Outer shutter] The upper frame 41, the lower frame 42, the door end frame 43, and the calling frame 44 of the outer shutter 4 have outdoor-side metal frame materials 411, 421, 431, 441 and indoor-side resin frame materials 511, 521, 531, 541 engaged with the indoor-side portions of the metal frame materials 411, 421, 431, 441. Panel mounting grooves 411A, 421A, 431A, 441A for mounting the panel 46 are provided in the metal frame materials 411, 421, 431, 441 via a backup material 7 and a sealing material 8.

[0021] As shown in FIG. 4, the metal frame member 411 of the upper frame 41 includes an outdoor finding surface portion 412 along the Y-axis direction, upper and lower upper frame projected surface portions 413 and 414 that are continuous with the outdoor finding surface portion 412 and along the Z-axis direction, an indoor finding surface portion 415 that is continuous with the lower upper frame projected surface portion 414 and along the Y-axis direction, and an intermediate surface portion 416 that is disposed at an intermediate position in the Z-axis direction of the upper frame projected surface portions 413 and 414 and is continuous with the upper frame projected surface portions 413 and 414 and along the Y-axis direction. The outdoor finding surface portion 412, the upper frame projected surface portion 414, and the indoor finding surface portion 415 form the panel mounting groove 411A described above. A concave groove portion 412A is formed on the upper end portion of the outdoor finding surface portion 412 facing the indoor side, and the lower portion of the outdoor finding surface portion 412 extends downward beyond the lower upper frame projected surface portion 414. On the outdoor side portion of the upper upper frame projected surface portion 413, a groove portion 413A for arranging the upper rail 212A is formed. In this groove portion 413A, a guide member 413B that slidably contacts the upper rail 212A and guides the outer shutter 4 in the X-axis direction is provided. On the portion of the upper frame projected surface portion 413 that is closer to the indoor side than the intermediate surface portion 416, a hook-shaped engaging portion 413C for engaging the resin frame member 511 is formed. Further, on the indoor side end portion (indoor side portion) of the upper frame projected surface portion 413, a rising piece-shaped contact portion 413D is formed where the airtight material 10 extending upward and attached to the attachment piece portion 212B contacts from the indoor side. At the tip portion of the indoor finding surface portion 415, an engaging piece portion 415A for engaging the resin frame member 511 is formed via a step portion 415B. Note that on the upper frame projected surface portion 414 and the intermediate surface portion 416, screw hole forming portions 414A and 416A for screwing the door end frame 43 and the calling frame 44 are formed.

[0022] The resin frame member 511 of the upper frame 41 has a vertically long hollow frame portion 512 in the Y-axis direction, an engaging piece portion 513 formed by extending upward from the upper portion of the frame portion 512, and an engaging groove portion 514 formed by protruding outward from the lower portion of the frame portion 512. The frame part 512 has indoor and outdoor locating parts 515, 516 along the Y-axis direction, and upper and lower prospective parts 517, 518 that are continuous with the upper and lower ends of the locating parts 515, 516 and along the Z-axis direction. The locating part 515 is formed in a stepped shape corresponding to the stepped shape of the indoor locating surface part 415 having the stepped part 415B, and is arranged at an interval from the indoor locating surface part 415. The engaging piece part 513 is continuous with the continuous part of the locating part 515 and the prospective part 517. At the tip of the engaging piece part 513, a hook-shaped engaging part 513A that engages with the engaging part 413C of the metal frame material 411 is formed. The engaging groove part 514 is continuous with the continuous part of the locating part 515 and the prospective part 518, and engages with the engaging piece part 415A of the metal frame material 411. In this resin frame material 511, the locating part 516 and the engaging piece part 513 form the indoor locating surface of the resin frame material 511.

[0023] As shown in FIG. 5, the metal frame material 421 of the lower frame 42 has an outdoor locating surface part 422 along the Y-axis direction, a lower frame prospective surface part 423 that is continuous with the outdoor locating surface part 422 and along the Z-axis direction, upper and lower indoor locating surface parts 424, 425 that are continuous with the lower frame prospective surface part 423 and along the Y-axis direction, and upper and lower continuous surface parts 426A, 426B that are continuous with the outdoor locating surface part 422 and the lower indoor locating surface part 425 at a position below the lower frame prospective surface part 423. The outdoor locating surface part 422, the lower frame prospective surface part 423, and the indoor locating surface part 424 form the panel mounting groove 421A described above. The outdoor locating surface part 422 is formed to extend vertically with respect to the lower frame prospective surface part 423. In the lower frame projected surface portion 423, there are formed a screw hole forming portion 423A that protrudes upward and to which the door end frame 43 and the calling frame 44 are screwed, and a locked piece 423B that is disposed at a position closer to the indoor side than the screw hole forming portion 423A and at a substantially central position in the Z-axis direction of the lower frame projected surface portion 423. The anti-drop component 12 that suppresses the lowering of the panel 46 is engaged with the screw hole forming portion 423A and the locked piece 423B. Further, in the lower frame projected surface portion 423, a screw hole forming portion 423C that protrudes downward and to which the door end frame 43 and the calling frame 44 are screwed is formed at a portion continuous with the indoor finding surface portion 425. The indoor finding surface portion 424 is continuous with the end portion on the indoor side of the lower frame projected surface portion 423. At the tip portion of the indoor finding surface portion 424, an engaging piece portion 424A with which the resin frame member 521 is engaged is formed via a stepped portion 424B. The indoor finding surface portion 425 is continuous with the lower surface of the lower frame projected surface portion 423 at a position closer to the indoor side than the position of the locked piece 423B, and is disposed at a position closer to the outdoor side than the position of the indoor finding surface portion 424 in the Z-axis direction. Further, in the indoor finding surface portion 425, there are formed a screw hole forming portion 425A to which the door end frame 43 and the calling frame 44 are screwed, an engaging piece 425B that is formed at a position adjacent to the upper side of the screw hole forming portion 425A and with which the resin frame member 521 is engaged, and a contact portion 426 where the airtight material 10 that extends indoors and is attached to the attachment piece portion 229 abuts from the indoor side at a position lower than the screw hole forming portion 425A. The contact portion 426 has an extending piece portion 427 that extends in the Z-axis direction from the indoor finding surface portion 425 toward the indoor side, and a contact piece 428 that is continuous with the end portion on the indoor side of the extending piece portion 427 and extends vertically along the Y-axis direction. The upper portion of the contact piece 428 has a stepped shape and the resin frame member 521 abuts against this portion. Note that the continuous surface portion 426B and the extending piece portion 427 form a projected surface below the lower frame 42. Further, at both ends of the lower frame 42 in the X-axis direction, door wheels 17 that travel in the X-axis direction on the lower rail 222A are provided, and the portion of the continuous surface portion 426B where the door wheels 17 are disposed is cut out. The finding dimension of the lower frame 42 of the outer shutter 4 in the Y-axis direction is larger than the finding dimension of the lower frame 62 of the inner shutter 6 in the Y-axis direction.

[0024] The resin frame member 521 of the lower frame 42 has a hollow main body frame portion 522 and a vertically long hollow frame portion 525 continuous with the upper portion closer to the indoor side of the main body frame portion 522. The main body frame portion 522 has indoor and outdoor finding portions 523A, 523B along the Y-axis direction, and upper and lower prospective portions 524A, 524B continuous with the finding portions 523A, 523B and along the Z-axis direction. A hook-shaped engaging portion 523C engaged with the engaging piece 425B of the metal frame member 421 is formed on the finding portion 523A. A stepped portion 523D is formed at the lower part of the finding portion 523B, and its lower end protrudes below the finding portion 524B, and the protruding portion abuts against the abutting portion 426 of the metal frame member 421. The hollow frame portion 525 has finding portions 526A, 526B extending upward along the Y-axis direction from the upper prospective portion 524A, and a prospective portion 527 continuous with the upper ends of the finding portions 526A, 526B and along the Z-axis direction. The finding portion 526A has a stepped shape corresponding to the stepped portion 424B of the indoor finding surface portion 424 and is arranged at an interval from the indoor finding surface portion 424. An engaging groove portion 528 engaged with the engaging piece portion 424A of the indoor finding surface portion 424 is formed at the continuous portion of the finding portion 526B and the prospective portion 527. Note that the finding portions 523B, 526B form the indoor finding surface of the resin frame member 521.

[0025] As shown in FIG. 6, the metal frame member 431 of the door end frame 43 has an outdoor finding surface portion 432 along the X-axis direction, an inner peripheral prospective surface portion 433 and an outer peripheral prospective surface portion 434 continuous with the outdoor finding surface portion 432 and along the Z-axis direction, and indoor finding surface portions 435, 436 continuous with the inner peripheral prospective surface portion 433 and the outer peripheral prospective surface portion 434 and along the X-axis direction. The outdoor finding surface portion 432, the inner peripheral prospective surface portion 433 and the indoor finding surface portion 435 form a panel mounting groove 431A. The exterior visible surface portion 432 is formed with a recessed portion 432A which serves as a handle on which fingers can be placed when sliding the exterior shoji screen 4 in the X-axis direction, and a recessed groove portion 432B is formed at the outer peripheral end of the exterior visible surface portion 432 facing toward the interior side of the room. The indoor sighting surface portion 435 is formed by extending in the X-axis direction from the indoor end of the inner circumference sighting surface portion 433 toward the inner circumference, and a protrusion 435A protruding toward the outer circumference is formed at the continuous portion between the indoor sighting surface portion 435 and the inner circumference sighting surface portion 433. The indoor sighting surface 436 is continuous with the outer peripheral surface of the inner peripheral projection surface 433, and is positioned further outward in the Z-axis direction than the indoor sighting surface 435. An engagement recess 436A with which the resin frame 531 engages is formed at the outer peripheral end of the indoor sighting surface 436, and a piece-shaped abutment portion 436B is formed at the outer peripheral portion of the engagement recess 436A, against which the airtight material 10 attached to the attachment piece 232B abuts from the indoor side. An inclined surface 436C is formed on the indoor-side surface of the abutment portion 436B at the outer peripheral portion, which is inclined toward the outdoor side as it approaches the vertical frame 23. In the metal frame material 431 of this outer shoji screen 4, the interior facing surface portion 436 is positioned closer to the interior side than the center position of the panel 46 in the Z-axis direction and closer to the exterior side than the interior surface 46B of the panel 46.

[0026] The resin frame material 531 of the door end frame 43 has a main body frame portion 532 configured in a horizontally long, hollow rectangular shape with indoor and outdoor visibility portions 533A, 533B aligned along the X-axis direction and left and right visibility portions 534A, 534B aligned along the Z-axis direction, and a hollow, rectangular outer peripheral frame portion 535 continuous with visibility portion 533A of main body frame portion 532. Visible portion 533A is located on the outdoor side of visibility portion 533B, and visibility portion 534A is located on the outer periphery of visibility portion 534B. The finding part 533A extends to the outer peripheral side of the anticipation part 534A, and the outer peripheral frame part 535 is continuous with the end part on the outer peripheral side of the finding part 533A. Recesses 539 are formed on the inner peripheral side faces of the finding part 533A, the anticipation part 534A, and the outer peripheral frame part 535 as handles for a finger or the like to be placed thereon when the outer shutter 4 is slid in the X-axis direction. An engaging groove part 538 that engages with the indoor finding face part 435 of the metal frame material 431 is formed at the continuous part of the finding part 533A and the anticipation part 534B. A protruding piece 533C protruding to the outdoor side is formed on the finding part 533A. The inner peripheral side face of the protruding piece 533C faces the tip of the protruding part 435A of the metal frame material 431 in the X-axis direction and maintains the engaged state between the indoor finding face part 435 of the metal frame material 431 and the engaging groove part 538. An engaging part 535A that engages with the engaging recess part 436A of the metal frame material 431 is continuous with the end part on the outdoor outer peripheral side of the outer peripheral frame part 535.

[0027] As shown in FIG. 8, the metal frame material 441 of the calling frame 44 has an outdoor finding face part 442 along the X-axis direction, an inner peripheral anticipation face part 443 and an outer peripheral anticipation face part 444 that are continuous with the outdoor finding face part 442 and along the Z-axis direction, an indoor finding face part 445 that is continuous with the end parts on the indoor side of the inner peripheral anticipation face part 443 and the outer peripheral anticipation face part 444 and along the X-axis direction, and a continuous piece part 446 that is continuous with the inner peripheral anticipation face part 443 and the outer peripheral anticipation face part 444 between the outdoor finding face part 442 and the indoor finding face part 445 and along the X-axis direction. The outdoor finding face part 442 and the indoor finding face part 445 extend in the X-axis direction toward the door leading frame 43 side (inner peripheral side) from the inner peripheral anticipation face part 443. The outdoor finding face part 442, the inner peripheral anticipation face part 443, and the indoor finding face part 445 form the panel mounting groove 441A described above. A protruding part 443A into which a holding member 9 that protrudes to the inner peripheral side and holds the side part of the panel 46 is fitted is formed on the inner peripheral anticipation face part 443. Note that a lock receiver 181 of the crescent lock 18 is attached to the indoor finding face part 445. Further, the metal frame member 441 has a smoke return portion 447 with a substantially L-shaped cross section continuous with the continuous portion of the outer peripheral prospective surface portion 444 and the indoor finding surface portion 445, and is formed by extending from a position on the inner peripheral side of the inner peripheral prospective surface portion 443 in the indoor finding surface portion 445 toward the indoor side, and has a contact portion 448 with which the fin piece 141 of the airtight material 14 to be described later slidably contacts in the X-axis direction. The metal (aluminum in this embodiment) contact portion 448 is disposed on the indoor space side of the smoke return portion 447 and has an extension piece portion 448A extending in the Z-axis direction from the indoor finding surface portion 445 toward the indoor side (summoning frame 64 side), and is continuous with the extension piece portion 448A and extends in the X-axis direction from the indoor-side end of the extension piece portion 448A toward the door leading frame 43 side (inner peripheral side) and is disposed opposite to the outdoor finding surface of the summoning frame 64. On the indoor surface of the contact piece portion 448B, the fin piece 141 of the airtight material 14 is slidably contacted from the indoor side in the closed state of the sliding window 1. A protrusion 448C protruding in the X-axis direction toward the inner peripheral side of the outer shutter 4 is formed on the extension piece portion 448A, and a protrusion 448D protruding in the Z-axis direction toward the outdoor side is formed on the contact piece portion 448B. The contact portion 448 constitutes an engagement groove portion 449 into which the resin frame member 541 engages between the protrusions 448C and 448D.

[0028] The resin frame member 541 is formed in a sheet shape along the Z-axis direction and has a resin main body portion 542 that covers the inner peripheral side end portion of the indoor finding surface portion 445 of the metal frame member 441, a hook-shaped engaging piece portion 543 that is continuous with the resin main body portion 542 and extends in the X-axis direction from the resin main body portion 542 toward the extending piece portion 448A of the contact portion 448, a protrusion 544 that is continuous with the resin main body portion 542 and protrudes in the X-axis direction from the resin main body portion 542 toward the tip of the contact piece portion 448B at a position on the indoor side (the indoor side end portion in this embodiment) of the resin main body portion 542 that is closer to the indoor side than the base portion of the engaging piece portion 543, and an extending portion 545 that extends in the X-axis direction from the indoor side portion (the outdoor side end portion in this embodiment) of the resin main body portion 542 toward the inner peripheral prospective surface portion 443 at a position on the outdoor side of the resin main body portion 542 that is closer to the outdoor side than the base portion of the engaging piece portion 543. Further, by configuring the aforementioned protrusion 544, the metal contact piece portion 448B is suppressed from being exposed to the indoor space as much as possible. The engaging piece portion 543 is engaged with the engaging groove portion 449 of the contact portion 448, the protrusion 544 is in contact with the tip of the contact piece portion 448B, and the extending portion 545 is engaged with the indoor finding surface portion 445 of the metal frame member 441. A sealing material 8 is provided between the extending portion 545 and the panel 46.

[0029] [Inner sash] The upper frame 61, lower frame 62, door end frame 63, and summons frame 64 of the inner sash 6 have outdoor metal frame members 611, 621, 631, 641 and indoor resin frame members 711, 721, 731, 741 engaged with the indoor side portions of the metal frame members 611, 621, 631, 641. The metal frame members 611, 621, 631, 641 are provided with panel mounting grooves 611A, 621A, 631A, 641A to which the panel 66 is attached via the backup material 7 and the sealing material 8.

[0030] As shown in FIG. 4, the metal frame member 611 of the upper frame 61 includes an outdoor finding surface portion 612 along the Y-axis direction, upper and lower upper frame expected surface portions 613 and 614 that are continuous with the outdoor finding surface portion 612 and along the Z-axis direction, an indoor finding surface portion 615 that is continuous with the upper frame expected surface portion 614 and along the Y-axis direction, and a continuous surface portion 616 that is continuous with the upper frame expected surface portions 613 and 614 at a position between the outdoor finding surface portion 612 and the indoor finding surface portion 615 and along the Y-axis direction. The outdoor finding surface portion 612, the upper frame expected surface portion 614, and the indoor finding surface portion 615 form the above-described panel mounting groove 611A. A concave groove portion 612A is formed on the upper end portion of the outdoor finding surface portion 612 facing the outdoor side, and the lower portion of the outdoor finding surface portion 612 extends downward beyond the lower upper frame expected surface portion 614. A hook-shaped engaging portion 613C for engaging the resin frame member 711 is formed on the upper frame expected surface portion 613, and the continuous surface portion 616 is continuous with the engaging portion 613C. Further, at the indoor-side end (indoor-side portion) of the upper frame expected surface portion 613, a rising piece-shaped abutting portion 613D is formed where the airtight material 10 mounted on the indoor finding surface portion 214 of the metal frame member 211 abuts from the indoor side. An engaging piece portion 615A for engaging the resin frame member 711 is formed at the tip portion of the indoor finding surface portion 615 via a step portion 615B. Note that screw hole forming portions 614A and 614B for screwing the door end frame 63 and the calling frame 64 are formed on the upper frame expected surface portion 614.

[0031] The resin frame member 711 of the upper frame 61 has a vertically long hollow frame portion 712 in the Y-axis direction, an engaging piece portion 713 that extends in the X-axis direction from the upper portion of the frame portion 712 toward the outdoor side and extends upward with a substantially L-shaped cross section, and an engaging groove portion 714 that protrudes from the lower portion of the frame portion 712 toward the outdoor side. The frame part 712 has indoor and outdoor locating parts 715, 716 along the Y-axis direction, and upper and lower prospective parts 717, 718 that are continuous with the upper and lower ends of the locating parts 715, 716 and along the Z-axis direction. The locating part 715 is formed in a stepped shape corresponding to the stepped shape of the indoor locating surface part 615 having the stepped part 615B, and is arranged at an interval from the indoor locating surface part 615. The engaging piece part 713 is continuous with the continuous part of the locating part 715 and the prospective part 717. At the tip of the engaging piece part 713, a hook-shaped engaging part 713A that engages with the engaging part 613C of the metal frame material 611 is formed. The engaging groove part 714 is continuous with the continuous part of the locating part 715 and the prospective part 718, and engages with the engaging piece part 615A of the metal frame material 611. In the resin frame material 711, the locating part 716 and the engaging piece part 713 form the indoor locating surface of the resin frame material 711. The upper part of the metal frame material 411 of the upper frame 41 is fitted so as to be slidable in the X-axis direction with respect to the indoor side guide groove 212C formed in the window frame 2.

[0032] As shown in FIG. 5, the metal frame material 621 of the lower frame 62 has an outdoor locating surface part 622 along the Y-axis direction, a lower frame prospective surface part 623 that is continuous with the outdoor locating surface part 622 and along the Z-axis direction, upper and lower indoor locating surface parts 624, 625 that are continuous with the lower frame prospective surface part 623 and along the Y-axis direction, and a single continuous surface part 626 that is continuous with the outdoor locating surface part 622 and the lower indoor locating surface part 625 at a position below the lower frame prospective surface part 623. The outdoor locating surface part 622, the lower frame prospective surface part 623, and the indoor locating surface part 624 form the panel mounting groove 621A described above. The outdoor locating surface part 622 is formed to extend vertically with respect to the lower frame prospective surface part 623. In the lower frame expected surface portion 623, there are formed a screw hole forming portion 623A that protrudes upward and to which the door end frame 63 and the calling frame 64 are screwed, and a locked piece 623B that is located on the indoor side of the screw hole forming portion 623A and is disposed at a substantially central position in the Z-axis direction of the lower frame expected surface portion 623. The anti-drop component 12 that suppresses the lowering of the panel 66 is engaged with the screw hole forming portion 623A and the locked piece 623B. Further, on the lower frame expected surface portion 623, a screw hole forming portion 623C that protrudes downward is formed at a position on the indoor side of the locked piece 623B. The indoor finding surface portion 624 is continuous with the indoor end portion of the lower frame expected surface portion 623. At the tip portion of the indoor finding surface portion 624, an engaging piece portion 624A with which the resin frame member 721 is engaged is formed via a stepped portion 624B. The indoor finding surface portion 625 is continuous with the lower surface of the lower frame expected surface portion 623 at a position outside the locked piece 623B, and is disposed at a position outside the indoor finding surface portion 624 in the Z-axis direction. Further, on the indoor finding surface portion 625, an engaging recess 625A that protrudes indoors at an intermediate position in the Y-axis direction and with which the resin frame member 721 is engaged, and a contact portion 625B that is continuous with the lower end of the indoor finding surface portion 624 and with which the airtight material 10 attached to the indoor finding surface 228 of the metal frame member 221 abuts from the outdoor side are formed. The contact portion 625B is formed to protrude indoors from the lower end of the indoor finding surface portion 625 and to hang downward. Note that the continuous surface portion 626 forms an expected surface below the lower frame 62. Further, at both ends of the lower frame 62 in the X-axis direction, door wheels 17 that travel in the X-axis direction on the lower rail 222B are provided, and the portion of the continuous surface portion 626 where the door wheels 17 are disposed is cut out. The finding dimension of the lower frame 62 of this inner shutter 6 in the Y-axis direction is smaller than the finding dimension of the lower frame 42 of the outer shutter 4, and the position of the door wheel 17 provided on the lower frame 62 is arranged at a position higher than the position of the door wheel 17 of the lower frame 42.

[0033] The resin frame member 721 has a hollow main body frame portion 722 and a vertically long hollow frame portion 725 continuous with an upper portion closer to the indoor side of the main body frame portion 722. The main body frame portion 722 has a prospective portion 722A having a stepped portion at a central position in the Z-axis direction, a finding portion 722B continuous with an end portion on the outdoor side of the prospective portion 722A and extending downward along the Y-axis direction, and an inclined portion 722C continuous with an end portion on the indoor side of the prospective portion 722A and the finding portion 722B and inclined downward as going from the indoor side to the outdoor side in the Z-axis direction. In the prospective portion 722A, a portion on the outdoor side of the stepped portion is arranged one step lower than a portion on the indoor side, and the portion on the outdoor side avoids the screw hole forming portion 623C. A hook-shaped engaging portion 723 engaged with the engaging concave portion 625A of the metal frame member 621 is formed in the finding portion 722B. Further, a lower end portion of the finding portion 72B extends indoors and hangs downward, is arranged directly above the contact portion 625B, and contacts the indoor finding surface portion 625. The hollow frame portion 725 has finding portions 725A and 725B extending upward along the Y-axis direction from the prospective portion 722A, and a prospective portion 726 continuous with upper ends of the finding portions 725A and 725B and along the Z-axis direction. The finding portion 725A has a stepped shape corresponding to a stepped portion 624B of the indoor finding surface portion 624 and is arranged at an interval from the indoor finding surface portion 624. An engaging groove portion 728 engaged with the engaging piece portion 624A of the indoor finding surface portion 624 is formed in a continuous portion of the finding portion 725A and the prospective portion 726. Note that the finding portion 725B forms the indoor finding surface of the resin frame member 721.

[0034] As shown in FIG. 7, the metal frame member 631 of the door end frame 63 has an outdoor finding surface portion 632 along the X-axis direction, an inner peripheral prospective surface portion 633 and an outer peripheral prospective surface portion 634 continuous with the outdoor finding surface portion 632 and along the Z-axis direction, and indoor finding surface portions 635 and 636 continuous with the inner peripheral prospective surface portion 633 and the outer peripheral prospective surface portion 634 and along the X-axis direction. The outdoor finding surface portion 632, the inner peripheral prospective surface portion 633, and the indoor finding surface portion 635 form a panel mounting groove 631A. On the outdoor finding surface portion 632, a recessed portion 632A is formed as a handle that can be grasped by a finger or the like when the blind 6 is slid in the X-axis direction. Also, a concave groove portion 632B is formed on the end portion on the outer peripheral side of the outdoor finding surface portion 632 facing the indoor side. The indoor finding surface portion 635 is formed to extend in the X-axis direction from the end portion on the indoor side of the inner peripheral prospective surface portion 633 toward the inner peripheral side. The indoor finding surface portion 636 is continuous with the outer peripheral surface of the inner peripheral prospective surface portion 633 and is disposed at a position outside the indoor side of the indoor finding surface portion 635 in the Z-axis direction. An engaging concave portion 636A with which the resin frame member 731 is engaged is formed at the end portion on the outer peripheral side of the indoor finding surface portion 636. A sheet-like abutting portion 636B with which the airtight material 10 attached to the indoor finding surface portion 244 of the vertical frame 24 abuts from the indoor side is formed at the outer peripheral side portion of the engaging concave portion 636A. An inclined surface 636C inclined outward in the outdoor direction as it goes toward the vertical frame 24 side is formed on the surface on the indoor side of the abutting portion 636B at the outer peripheral side portion. In the door end frame 63 of this blind 6, the indoor finding surface portion 636 of the metal frame member 631 is disposed closer to the outdoor side than the central position of the panel 66 in the Z-axis direction.

[0035] The resin frame member 731 has a main body frame portion 732 configured in a horizontally long hollow shape by the indoor and outdoor finding portions 733A and 733B along the X-axis direction and the left and right prospective portions 734A and 734B along the Z-axis direction, and an engaging piece portion 735 that extends in the Z-axis direction from the outer peripheral prospective portion 734A toward the outdoor side and extends with a bend on the outer peripheral side. The main body frame portion 732 is disposed closer to the indoor side than the panel 66, and its inner peripheral side portion is configured to facilitate hanging a finger or the like when the blind 6 is slid in the X-axis direction (particularly, during the closing movement operation). The finding portion 733A is disposed closer to the outdoor side than the finding portion 733B, and the prospective portion 734A is disposed closer to the outer peripheral side than the prospective portion 734B. The end portion on the outer peripheral side of the finding portion 733A is bent toward the outdoor side. A continuous piece portion 734C that extends toward the inner peripheral side and is continuous with the end portion on the outer peripheral side of the finding portion 733A is formed in the prospective portion 734A. The engaging piece portion 735 is arranged at an interval from the resin side piece portion 342 of the resin frame member 341 in the X-axis direction, and is designed to facilitate hanging a finger or the like during the sliding movement operation of the inner lens 6 in the X-axis direction (especially during the opening movement operation). An engaging portion 735A that engages with the engaging concave portion 636A of the metal frame member 631 is formed at the tip of the engaging piece portion 735. An engaging groove portion 738 that engages with the indoor finding surface portion 635 of the metal frame member 631 is formed at the continuous portion of the finding portion 733A and the prospective portion 734B.

[0036] As shown in FIG. 8, the metal frame member 641 of the summons frame 64 has an outdoor finding surface portion 642 along the X-axis direction, an inner peripheral prospective surface portion 643 and an outer peripheral prospective surface portion 644 that are continuous with the outdoor finding surface portion 642 and along the Z-axis direction, an indoor finding surface portion 645 that is continuous with the indoor-side ends of the inner peripheral prospective surface portion 643 and the outer peripheral prospective surface portion 644 and along the X-axis direction, and a continuous piece portion 646 that is continuous with the inner peripheral prospective surface portion 643 and the outer peripheral prospective surface portion 644 between the outdoor finding surface portion 642 and the indoor finding surface portion 645 and along the X-axis direction. The outdoor finding surface portion 642 and the indoor finding surface portion 645 extend in the X-axis direction toward the door tip frame 63 side (inner peripheral side) rather than the inner peripheral prospective surface portion 643. The outdoor finding surface portion 642, the inner peripheral prospective surface portion 643, and the indoor finding surface portion 645 form the panel mounting groove 641A described above. On the outdoor visible surface portion 642, a smoke return portion 647 having a substantially L-shaped cross section that overlaps with the smoke return portion 447 described above in the closed state of the sliding window 1 in the Z-axis direction is formed. Further, at the outer peripheral side end portion of the outdoor visible surface portion 642, a groove portion 642A into which a weatherstrip 14 having a fin piece 141 extending in the Z-axis direction toward the outdoor side is fitted and mounted toward the outdoor side is formed, and an engaging piece 642B that engages with a resin frame member 741 is formed at the outer peripheral side portion of the groove portion 642A. The weatherstrip 14 extends in the Y-axis direction from the upper end to the lower end of the summons frame 64, and is disposed on the vertical frame 23 side and on the indoor space side rather than the smoke return portion 647. The tip of the fin piece 141 of the weatherstrip 14 abuts against the contact piece portion 448B of the metal frame member 441 of the outer shutter 4 from the indoor side in the closed state of the sliding window 1, and blocks the inside and outside between the summons frames 44 and 64. At this time, in the X-axis direction, the space on the indoor side of the outer shutter 4 and on the vertical frame 23 side rather than the weatherstrip 14 becomes the indoor space, and the space on the outdoor side of the inner shutter 6 and on the vertical frame 24 side rather than the weatherstrip 14 becomes the outdoor space. On the inner peripheral expected surface portion 643, a protrusion 643A into which a holding member 9 that protrudes toward the inner peripheral side and holds the side portion of the panel 66 is fitted is formed. The outer peripheral expected surface portion 644 has a step portion 644A formed at an intermediate position in the Z-axis direction, and its outdoor side portion is disposed at a position on the outer peripheral side rather than the indoor side portion. A recess 644B in which an engaging piece 745 described later is disposed is formed at the indoor side end portion of the outer peripheral expected surface portion 644. Note that a lock body 182 of a crescent lock 18 is attached to the indoor visible surface portion 645. The continuous piece portion 646 is continuous with the back side portion of the protrusion 643A in the inner peripheral expected surface portion 643 and is continuous with the step portion 644A in the outer peripheral expected surface portion 644.

[0037] The resin frame member 741 has a prospective surface portion 742 along the Z-axis direction, and finding surface portions 743 and 744 that are continuous with the indoor-side end of the prospective surface portion 742 and along the X-axis direction. In the indoor-side portion of the prospective surface portion 742 that is located on the indoor side of the above-described step portion 644A and in the portion between the finding surface portions 743 and 744, hollow rectangular frame portions 742A and 743A are formed. The frame portion 742A is formed by a finding portion 742B that extends in the X-axis direction toward the inner peripheral side, a prospective portion 742C that is continuous with the finding portion 742B and extends in the Z-axis direction toward the indoor side and is continuous with the finding surface portion 744, and the indoor-side portion of the above-described prospective surface portion 742 and the outer peripheral side portion of the finding surface portion 744. An engaging piece 745 that is disposed in the recess 644B of the metal frame member 641 is formed in the prospective portion 742C. The frame portion 743A is formed by the finding surface portions 743 and 744, the indoor-side portion of the above-described prospective surface portion 742 that is continuous with the finding surface portions 743 and 744 on the outer peripheral side, and a prospective portion 743B that is continuous with the finding surface portions 743 and 744 on the inner peripheral side. An engaging groove portion 746 that protrudes toward the outdoor side in the Z-axis direction and engages with the indoor finding surface portion 645 of the metal frame member 641 is formed in the continuous portion of the finding surface portion 744 and the prospective portion 743B. An engaging groove portion 742D that engages with the engaging piece 642B of the metal frame member 641 is provided at the outdoor-side end of the prospective surface portion 742. In the portion of the prospective surface portion 742 between the engaging groove portion 742D and the frame portion 742A, two protrusions 742E that protrude toward the inner peripheral side are formed. The two protrusions 742E are disposed between the outer peripheral prospective surface portion 644 of the metal frame member 641 and the lock body 182.

[0038] In the above-described offset window 1, the resin frame members 311, 321, 331, 341 and the resin sash members 511, 521, 531, 541, 711, 721, 731, 741 cover the metal frame members 211, 221, 231, 241 and the metal sash members 411, 421, 431, 441, 611, 621, 631, 641 from the indoor side so that the metal frame members 211, 221, 231, 241 and the metal sash members 411, 421, 431, 441, 611, 621, 631, 641 are not exposed as much as possible in the indoor space. By configuring the window frame 2, the outer shutter 4, and the inner shutter 6 with aluminum resin composite materials, the heat insulation between the indoor and outdoor is improved. The expected dimension in the Z-axis direction between the position of the outdoor finding surface of the outdoor finding surface portion 412 of the upper frame 41 of the outer shutter 4 and the contact position of the airtight material 10 (the airtight material 10 attached to the attachment piece portion 212B) that contacts the upper frame 41 is the outdoor finding surface of the outdoor finding surface portion 612 of the upper frame 61 of the inner shutter 6. It is larger than the expected dimension in the Z-axis direction between the position and the contact position of the airtight material 10 (the airtight material 10 attached to the indoor finding surface portion 214) that contacts the upper frame 61. The metal frame member 411 of the upper frame 41 is formed over the contact position of the airtight material 10 (the airtight material 10 attached to the attachment piece portion 212B) from the position of its outdoor finding surface in the Z-axis direction, and the panel mounting groove 411A is made of a metal material. Further, the contact position of the airtight material 10 (the airtight material 10 attached to the attachment piece portion 212B) is arranged at a position closer to the indoor side than the position of the indoor surface 46B of the panel 46 in the Z-axis direction. The metal frame member 421 of the lower frame 42 of the outer shutter 4 has an expected dimension between the position of the outdoor-facing surface of the outdoor-facing surface portion 422 of the lower frame 42 and the contact position of the airtight material 10 (the airtight material 10 attached to the attachment piece portion 229) that contacts the lower frame 42, which is larger than the expected dimension in the Z-axis direction between the position of the outdoor-facing surface of the outdoor-facing surface portion 622 of the lower frame 62 of the inner shutter 6 and the contact position of the airtight material 10 (the airtight material 10 attached to the indoor-facing surface portion 228) that contacts the lower frame 62. The metal frame member 421 of the lower frame 42 is formed extending in the Z-axis direction from the position of its outdoor-facing surface to the contact position of the airtight material 10 (the airtight material 10 attached to the attachment piece portion 229) that contacts the upper frame 41, and the panel mounting groove 421A is made of a metal material. Also, the contact position of the airtight material 10 (the airtight material 10 attached to the attachment piece portion 229) is arranged at a position on the indoor side of the position of the indoor surface 46B of the panel 46 in the Z-axis direction. The metal frame member 431 of the door-end frame 43 of the outer shutter 4 has an expected dimension between the position of the outdoor-facing surface of the outdoor-facing surface portion 432 of the door-end frame 43 and the contact position of the airtight material 10 (the airtight material 10 attached to the attachment piece portion 232B) that contacts the door-end frame 43, which is larger than the expected dimension in the Z-axis direction between the position of the outdoor-facing surface of the outdoor-facing surface portion 632 of the door-end frame 63 of the inner shutter 6 and the contact position of the airtight material 10 (the airtight material 10 attached to the indoor-facing surface portion 244) that contacts the door-end frame 63. The metal frame member 431 of the door-end frame 43 is formed extending in the Z-axis direction from the position of its outdoor-facing surface to the contact position of the airtight material 10 (the airtight material 10 attached to the attachment piece portion 232B) that contacts the door-end frame 43, and the panel mounting groove 431A is made of a metal material. Also, the contact position of the airtight material 10 (the airtight material 10 attached to the attachment piece portion 232B) is arranged at a position on the indoor side of the position of the indoor surface 46B of the panel 46 in the Z-axis direction. In the inner shutter 6, the contact positions of the respective airtight materials 10 (the airtight materials 10 attached to the indoor-facing surface portions 214, 228, and 244 respectively) with respect to the upper frame 61, the lower frame 62, and the door-end frame 63 are arranged at positions on the outdoor side of the position of the indoor surface 66B of the panel 66 in the Z-axis direction. Here, the contact positions of the airtight material 10 (the airtight material 10 attached to the mounting piece portion 212B) that contacts the upper frame 41 of the outer shutter 4, the contact position of the airtight material 10 (the airtight material 10 attached to the mounting piece portion 229) that contacts the lower frame 42, and the contact position of the airtight material 10 (the airtight material 10 attached to the mounting piece portion 232B) that contacts the door end frame 43 are arranged at equal positions with respect to each other in the Z-axis direction, and these airtight materials 10 that contact the upper frame 41 continuously form an airtight line 100 in the outer shutter 4. Further, the contact position of the airtight material 10 (the airtight material 10 attached to the indoor finding surface portion 214) that contacts the upper frame 61 of the inner shutter 6, the contact position of the airtight material 10 (the airtight material 10 attached to the indoor finding surface portion 228) that contacts the lower frame 62, and the contact position of the airtight material 10 (the airtight material 10 attached to the indoor finding surface portion 244) that contacts the door end frame 63 are arranged at equal positions with respect to each other in the Z-axis direction, and these airtight materials 10 that contact the upper frame 61 continuously form an airtight line 200 in the inner shutter 6. Also, in the window frame 2, the expected dimension in the Z-axis direction of the outdoor guide groove 212G formed between the outdoor finding surface portion 213 and the mounting piece portion 212B of the upper frame 21 is larger than the expected dimension in the Z-axis direction of the indoor guide groove 212C, and the expected dimensions in the Z-axis direction of the extending piece portion 232A and the mounting piece portion 232B of the vertical frame 23 are larger than the expected dimension in the Z-axis direction between the extending piece portion 242A of the vertical frame 24 and the indoor finding surface portion 244. According to this sliding window 1, while aiming to reduce the expected dimensions of the window frame 2 and maintain heat insulation performance, the metal portions where the frame body 45 of the outer shutter 4 is held by the window frame 2 can be increased, and the strength of the outer shutter 4 can be improved.

[0039] [Modification Example] In the above-described embodiment, the metal frame members 411, 421, 431, 441 of the frame body 45 have the contact portions 413D, 426, 436B where the indoor side portions thereof contact the respective airtight materials 10. However, alternatively, resin frame members 711, 721, 731, 741 may have contact portions that contact the respective airtight materials 10. In the above-described embodiment, in the summons frame 64, the groove portion 642A into which the airtight material 14 is fitted and mounted is formed in the metal frame material 641 and is made of a metal material. However, the present invention is not limited to this, and for example, it may be formed in a resin frame material 741. In the above-described embodiment, in the summons frame 44, the contact portion 448 is configured to have the above-described extended piece portion 448A and the contact piece portion 448B. However, the present invention is not limited to this configuration, and any configuration may be used as long as the airtight material 14 has a surface that can be slidably contacted in the X-axis direction. Further, the engagement groove portion 449 with which the resin frame material 541 engages is formed in the contact portion 448. However, the present invention is not limited to this, and an engagement portion with which the resin frame material 541 can engage may be formed in the metal frame material 441 at a portion different from the contact portion 448. In this case, the configuration of the resin frame material 541 may be appropriately changed so as to be engageable with the metal frame material 441. In the above-described embodiment, the sliding window 1 has been described as a fitting. However, in addition, one of the outer sash 4 and the inner sash ⑥ may be a fixed sash fitted and fixed to the window frame 2, and the other may be a single-slide window that can slide in the X-axis direction within the window frame 2 as a fitting.

[0040] [Summary of the Invention] The sliding window of the present invention based on the above-described sliding window 1 is as follows. (A1) The sliding window of the present invention is a sliding window in which an outer shutter and an inner shutter that can slide relative to each other are arranged within a frame body. The outer shutter includes an outer frame body and an outer surface material disposed inside the outer frame body. The inner shutter includes an inner frame body and an inner surface material disposed inside the inner frame body. The outer frame body has at least an outer door leading frame as a frame material constituting the outer frame body. The inner frame body has at least an inner door leading frame as a frame material constituting the inner frame body. Each of the outer door leading frame and the inner door leading frame is composed of a metal frame material on the outdoor side and a resin frame material on the indoor side. The frame body is provided with an outer airtight material that abuts against the outer door leading frame from the indoor side and an inner airtight material that abuts against the inner door leading frame from the indoor side. The inner airtight material is disposed at a position on the outdoor side of the indoor surface of the inner surface material in the prospective direction. The prospective dimension between the position of the outdoor facing surface of the outer door leading frame and the abutting position of the outer airtight material against the outer door leading frame is larger than the prospective dimension between the position of the outdoor facing surface of the inner door leading frame and the abutting position of the inner airtight material against the inner door leading frame. According to the sliding window of the present invention, since each of the outer door leading frame and the inner door leading frame is composed of a metal frame material on the outdoor side and a resin frame material on the indoor side, for example, compared with the case where the outer door leading frame or the inner door leading frame is composed only of a metal frame material on the outdoor side without having a resin frame material on the indoor side, the heat insulation between the indoor and outdoor can be improved. Also, since the inner airtight material is disposed at a position on the outdoor side of the indoor surface of the inner surface material in the prospective direction, the prospective dimension of the inner door leading frame can be reduced, and the prospective dimension of the frame body can also be reduced. Moreover, since the prospective dimension between the position of the outdoor facing surface of the outer door leading frame and the abutting position of the outer airtight material against the outer door leading frame is larger than the prospective dimension between the position of the outdoor facing surface of the inner door leading frame and the abutting position of the inner airtight material against the inner door leading frame, while constructing a frame body with a small prospective dimension as described above, the prospective dimension of the outer door leading frame can be formed to be large, and the rigidity of the door leading frame can be increased. Thereby, the strength of the outer shutter can be increased, for example, the risk of the outer shutter falling off to the outdoor side can be reduced. (A2) In the sliding window of the present invention, the metal frame material in the outer frame body may be formed from the position of its outdoor facing surface to the abutting position of the outer airtight material against the outer door leading frame in the prospective direction. According to such a configuration, for example, compared with a case where the metal frame material of the outer frame is formed up to the middle from the position of the outdoor exposed surface of the outer frame in the prospective direction to the contact position of the outer airtight material with respect to the outer door leading frame, and the remaining portion is formed of a resin frame, in the outer frame, particularly in its outer peripheral portion, the portion formed of a metal material can be increased, the strength of the outer shutter can be improved, and the holding property of the outer shutter with respect to the frame body can be improved. (A3) In the sliding window of the present invention, the frame body has at least a frame prospective surface portion and a mounting piece portion that is continuous with the frame prospective surface portion and to which the outer airtight material is mounted, and the frame prospective surface portion and the mounting piece portion may be formed of a metal material. According to such a configuration, the interior and the exterior can be separated by a metal material and an outer airtight material, and the holding property of the outer shutter by the frame body can be improved. (A4) In the sliding window of the present invention, the metal frame material of the outer frame may have a contact portion that contacts the outer airtight material on its indoor side portion. According to such a configuration, for example, when the resin frame of the outer frame contacts the outer airtight material, the resin frame may be deformed by heat shrinkage and the heat insulation property may be reduced. However, in the present invention, since the indoor side portion of the metal frame material is brought into contact with the outer airtight material, deformation due to heat shrinkage hardly occurs in the metal frame material. Thereby, the interior and the exterior can be suitably blocked and the blocking property can be stabilized. (A5) In the sliding window of the present invention, the outer frame has an outer upper frame and an outer lower frame, the inner frame has an inner upper frame and an inner lower frame, and the frame body is provided with another outer airtight material that abuts against the outer upper frame and the outer lower frame from the indoor side, and another inner airtight material that abuts against the inner upper frame and the inner lower frame from the indoor side. The other inner airtight material is arranged at a position outside the indoor surface of the inner surface material in the prospective direction. The prospective dimension between the position of the outdoor finding surface of the outer upper frame and the contact position of the other outer airtight material with respect to the outer upper frame is larger than the prospective dimension between the position of the outdoor finding surface of the inner upper frame and the contact position of the other inner airtight material with respect to the inner upper frame. The prospective dimension between the position of the outdoor finding surface of the outer lower frame and the contact position of the other outer airtight material with respect to the outer lower frame may be larger than the prospective dimension between the position of the outdoor finding surface of the inner lower frame and the contact position of the other inner airtight material with respect to the inner lower frame. According to such a configuration, as described above, it is possible to improve the heat insulation between the indoor and outdoor, and while reducing the prospective dimension of the frame body, it is possible to improve the strength of the outer shutter. (A6) In the sliding window of the present invention, the contact positions of the outer airtight material and the other outer airtight material with respect to the outer frame may be arranged at positions on the indoor side of the indoor surface of the outer surface material in the prospective direction, and the contact positions of the other inner airtight material with respect to the inner frame may be arranged at positions on the outdoor side of the indoor surface of the inner surface material in the prospective direction. According to such a configuration, an airtight line can be formed around the outer shutter by the outer airtight material and the other outer airtight material, and an airtight line can be formed around the inner shutter by the inner airtight material and the other inner airtight material, so that the indoor and outdoor can be suitably blocked. Also, the prospective dimension of the inner frame can be reduced at the four sides, whereby the prospective dimension of the frame body can also be reduced, and the prospective dimension of the outer frame can be increased to configure an outer frame that can sufficiently hold the outer surface material with a large prospective dimension even when using an outer surface material with a large prospective dimension.

[0041] Also, the fitting of the present invention based on the sliding window 1 described above is as follows. (B1) The fitting of the present invention is a fitting configured by arranging an outer shutter and an inner shutter within a frame body. The outer shutter has an outer assembled frame formed by combining a metal frame member made of metal and a resin frame member made of resin. The inner shutter has an inner assembled frame formed by combining a metal frame member made of metal and a resin frame member made of resin. The outer assembled frame and the inner assembled frame each have a smoke return portion that overlaps with each other in the prospective direction. An airtight material that is disposed on the indoor space side of the smoke return portion and blocks the indoor and outdoor spaces between the outer assembled frame is attached to the inner assembled frame. The metal frame member of the outer assembled frame has a metal contact portion disposed opposite to the inner assembled frame, and the airtight material is slidably contacted with the contact portion. According to the fitting of the present invention, since the airtight material attached to the inner assembled frame contacts the metal contact portion of the outer assembled frame, for example, when the contact portion is made of resin, compared with the case where deformation may occur due to repeated thermal contraction caused by temperature changes or the like, thermal contraction and deformation based thereon can be suppressed, and a desired contact state of the airtight material with respect to the metal contact portion can be maintained, and airtightness can be maintained. (B2) In the fitting of the present invention, a concave groove portion into which the airtight material is fitted and attached may be formed in the metal frame member of the inner assembled frame. According to such a configuration, for example, compared with the case where the above-described concave groove portion is formed in the resin frame member of the inner assembled frame, the metal concave groove portion can reduce the possibility of thermal contraction and deformation based thereon, and a desired attachment state of the airtight material can be maintained, and airtightness can be improved. (B3) In the fitting of the present invention, the contact portion has an extension piece portion extending from the outer assembled frame toward the inner assembled frame side, and a contact piece portion extending in the left-right direction from the extension piece portion and with which the airtight material is slidably contacted. The extension piece portion has a protrusion protruding in the left-right direction toward the inner peripheral side of the outer shutter, and the contact piece portion has a protrusion protruding in the prospective direction toward the outdoor side. The extension piece portion and the contact piece portion may constitute an engagement groove portion in which the resin frame member is engaged between the protrusions. According to such a configuration, the contact portion described above can be utilized by combining the resin frame material with the metal frame material of the external call assembly frame, and the contact portion can have the role of contacting the airtight material and the role of engaging with the resin frame material, thereby achieving a simplified configuration. (B4) In the fitting of the present invention, the metal frame material of the external call assembly frame has an outdoor finding surface portion along the left-right direction where the contact portion is formed, and the resin frame material of the external call assembly frame includes a resin main body portion that covers the end portion of the outdoor finding surface portion, an engaging piece portion that is continuous with the resin main body portion and is engaged with the engaging groove portion, and a protrusion that protrudes from the resin main body portion toward the tip of the contact piece portion at a position closer to the indoor side than the engaging piece portion. According to such a configuration, the contact state of the airtight material with respect to the contact piece portion can be kept good, and except for a part of the contact piece portion, the exposure of the metal frame material of the external call assembly frame to the indoor space with respect to the airtight material described above can be suppressed by the resin frame material, thereby improving the heat insulation between the indoor and outdoor.

Explanation of reference numerals

[0042] 1…offset window (fitting), 10, 14…airtight material, 100, 200…airtight line, 12…anti-drop part, 141…fin piece, 15, 16…resin cover material, 17…door wheel, 18…crescent lock, 181…lock receiver, 182…lock body, 2…window frame (frame body), 21…upper frame, 211, 221, 231, 241…metal frame member, 212…prospective upper frame surface (prospective frame surface), 212A…upper rail, 212B, 229, 232B…mounting piece part, 212C…indoor guide groove, 212D, 414A, 416A, 423A, 423C, 425A, 614A, 614B, 623A, 623C…screw hole forming part, 212E, 214E, 232C, 228B, 229A, 244A, 412A, 432B, 612A, 632B, 642A…groove part, 212F, 313, 323, 336, 343, 425B, 642B, 745…engaging piece, 212G…outdoor guide groove, 213, 233, 243, 412, 422, 432, 442, 612, 622, 632, 642…outdoor finding surface, 214, 228, 244, 415, 424, 425, 435, 436, 445, 615, 624, 625, 635, 636, 645…indoor finding surface, 214A, 228A, 234A, 244B, 449, 514, 528, 538, 714, 728, 738, 742D, 746…engaging groove part, 215…groove forming piece, 215A…upper piece part, 215B…side piece part, 215C, 545…extending part, 215G, 337A…engaged protrusion, 22…lower frame, 222…prospective lower frame surface (prospective frame surface), 222A, 222B…lower rail, 222C, 512, 712, 742A, 743A…frame part, 223, 432A, 539, 632A, 644B…concave part, 224…indoor side frame part, 225…rising surface, 226, 227, 426A, 426B, 616, 626…continuous surface, 229B, 413C, 513A, 523C, 535A, 613C, 713A, 723, 735A…engaging part, 23, 24…vertical frame, 232, 242…prospective vertical frame surface (prospective frame surface), 232A, 242A, 427, 448A…extending piece part, 232D…engaging protrusion, 311, 321, 331, 341…resin frame member, 312…resin upper piece part, 322…resin lower piece part, 332…resin prospective surface, 333…resin frame part, 334, 415B, 424B, 523D, 615B, 624B, 644A…step part, 335, 342…resin side piece part, 337,338... finding piece, 338A... continuous piece, 339... prospective piece, 343A, 413D, 426, 436B, 448, 613D, 625B, 636B... abutting part, 4... outer shutter, 41, 61... upper frame, 411, 421, 431, 441, 611, 621, 631, 641... metal frame material, 411A, 421A, 431A, 441A, 611A, 621A, 631A, 641A... panel mounting groove, 413, 414, 613, 614... upper frame prospective surface (frame prospective surface), 413A... groove part, 413B... guide member, 415A, 424A, 513, 543, 615A, 624A, 713, 735... engaging piece part, 416... intermediate surface, 42, 62... lower frame, 423... lower frame prospective surface (frame prospective surface), 423B, 623B... locked piece, 428... abutting piece, 43, 63... door end frame, 433, 443, 633, 643... inner circumference prospective surface, 434, 444, 634, 644... outer circumference prospective surface, 435A, 443A, 448C, 448D, 544, 643A, 742E... protrusion, 436A, 625A, 636A... engaging recess, 436C, 636C... inclined surface, 44, 64... mating frame, 446, 646, 734C... continuous piece part, 447, 647... smoke return part, 448B... abutting piece part, 45, 65... frame body, 46, 66... panel,

Claims

1. A fitting configured with an outer shutter and an inner shutter disposed within a frame, wherein the outer shutter has an outer assembled frame formed by combining a metal frame member made of metal and a resin frame member made of resin, the inner shutter has an inner assembled frame formed by combining a metal frame member made of metal and a resin frame member made of resin, the outer assembled frame and the inner assembled frame each have a smoke return portion that overlaps with each other in the prospective direction, an airtight material is attached to the inner assembled frame, disposed on the indoor space side of the smoke return portion and blocking the indoor and outdoor between it and the outer assembled frame, the metal frame member of the outer assembled frame has a metal contact portion disposed opposite to the inner assembled frame, the airtight material is slidably contacted with the contact portion characterized fitting.

2. In the fitting according to Claim 1, a concave groove portion into which the airtight material is fitted and attached is formed in the metal frame member of the inner assembled frame characterized fitting.

3. In the fitting according to Claim 1, the contact portion has an extension piece portion extending from the outer assembled frame toward the inner assembled frame side, and a contact piece portion extending in the left - right direction from the extension piece portion and with which the airtight material is slidably contacted, the extension piece portion has a protrusion protruding in the left - right direction toward the inner peripheral side of the outer shutter, the contact piece portion has a protrusion protruding in the prospective direction toward the outdoor side, the extension piece portion and the contact piece portion constitute an engagement groove portion into which the resin frame member is engaged between the protrusions characterized fitting.

4. In the fitting according to Claim 3, the metal frame member of the outer assembled frame has an outdoor finding surface portion along the left - right direction where the contact portion is formed, the resin frame member of the outer assembled frame has a resin main body portion covering the end of the outdoor finding surface portion, an engagement piece portion continuous with the resin main body portion and engaged with the engagement groove portion, and a protrusion protruding from the resin main body portion toward the tip of the contact piece portion at a position on the indoor side of the engagement piece portion characterized fitting.

Images