JP2006226017A - Bottom-hinged inswinging window - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bottom-hinged inswinging window which can secure continuous airtightness from a stile to a top rail. <P>SOLUTION: In this bottom-hinged inswinging window, a stile/rail body, which is provided inside a frame body provided in an opening of a building, is supported on the lower part of the frame body in such a manner as to be freely tiltable toward an indoor side; an outdoor-side airtight material is provided around the periphery of the frame body; an indoor-side airtight material is provided on a window head and right and left jambs; outdoor-side abutting parts 43 and 63, which abut on the outdoor-side airtight material, are provided around the periphery of the outdoor surface of the stile/rail body; indoor abutting parts 44 and 66, which abut on the indoor-side airtight material almost throughout its longitudinal length, are provided at the face-direction outside ends of the top rail and the right and left stiles on an indoor surface; the top rail 40 is fixed by making an end surface butt against a side surface of the stile 60; and an upper end surface of the stile 60 is provided with an upper end cap 70 which has an abutting surface part 71 formed in such a manner as to almost continue into each of the indoor abutting part 44 of the top rail 40 and the indoor abutting part 64 of the stile 60. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an inward window in which a frame that can be inclined toward the indoor side is housed in a frame provided in a building opening, and in particular, the frame and the frame can be hermetically sealed over four rounds. Concerning inward windows.

2. Description of the Related Art Conventionally, there is known an inward-facing window in which a frame is provided at an opening of a building and a housing that can be tilted toward the indoor side is housed inside the frame. For example, Patent Document 1 discloses an inward window.
Japanese Patent Laid-Open No. 6-200677

  In order to ensure the airtightness and watertightness of the frame, an airtight material is provided over the circumference of the frame of the inward window. Since the casing of the inward-facing window opens toward the indoor side, the airtight member of the frame is provided toward the indoor side. Further, in order to achieve double airtightness, an airtight material is provided on each of the outer side and the indoor side of the frame body, and the airtight lines are formed by contacting the airtight lines respectively formed on the outdoor surface and the indoor surface of the housing. When the airtight material is provided double in this way, in order to airtight the casing that can be tilted inward, the airtight material on the indoor side is provided on the outer side in the direction of finding the airtight material on the outdoor side. Therefore, the airtight line on the indoor surface of the housing is provided on the outer side in the direction of finding than the airtight line on the outdoor surface.

  When double-tightening the inwardly tiltable frame, the airtight line on the indoor surface will be provided outside the direction in which each frame is found as described above, so it is continuous at the connecting part of the upper and vertical rods. It is difficult to form. Since the upper fence is inserted into the glass opening groove of the vertical fence and abutted and fixed, the position on the outer side in the direction in which the airtight line on the indoor surface of the vertical fence is formed, and the airtight line on the indoor face of the upper fence There is a gap between the two. Thus, when a clearance gap arises in an airtight line, the airtightness and watertightness of a housing cannot fully be ensured.

  The present invention has been made to solve the above-described problems, and an object thereof is to provide an inward-turning window capable of ensuring continuous airtightness from a vertical gutter to an upper gutter.

In order to solve the above-mentioned problems, an inward-turning window according to the present invention is formed by providing a rectangular frame at the opening of a building and assembling an upper and lower ridge and left and right vertical ridges into the rectangular shape inside the frame. In addition to providing a casing, the casing is supported on the lower part of the frame body so as to be tiltable toward the indoor side.
The frame includes an outdoor air-tight material and an indoor air-tight material over four circumferences, and each of the ridges constituting the housing has an outdoor surface in contact with the outdoor air-tight material over the entire length in the longitudinal direction. The abutting portion is provided with an indoor abutting portion that abuts the indoor airtight material over substantially the entire length in the longitudinal direction at the outer end of the abutting direction on the indoor surface,
The upper saddle is fixed with its end face butted against the side face of the vertical fence, and the upper end face of the vertical fence is substantially continuous with the indoor abutting portion of the upper saddle and the indoor abutting portion of the vertical fence. An upper end cap having a contact surface portion is provided.

Further, in the inward window according to the present invention, the vertical gutter includes an opening groove for accommodating the glass body over substantially the entire length in the longitudinal direction of the inner peripheral surface, and the indoor contact is located outside the opening direction from the bottom surface of the opening groove. Has a tangent,
The upper collar is fixed with its end face abutting against the bottom surface of the vertical groove opening groove, and the contact surface of the upper end cap is substantially continuous from the indoor contact area of the upper collar to the indoor contact area of the vertical fence. As a feature, a continuous airtight line extending from the upper ridge to the vertical ridge is formed.

  Further, the inversion window according to the present invention is characterized in that the upper end cap has an insertion portion for the upper end surface of the vertical hook.

  According to the inward-turning window according to the present invention, with respect to the indoor contact portion of the housing that contacts the indoor air-tight material of the frame, the upper face and the vertical face are separated by the contact surface portion of the upper end cap provided on the upper end face of the vertical face. By making it substantially continuous, it is possible to eliminate the cuts that occur at the connecting part of the upper and vertical gutters of the indoor abutting portion provided at the outer end of the frame in the direction in which it is found. Therefore, the airtightness of the housing can be improved.

  In addition, according to the inversion window according to the present invention, the end surface of the upper collar is abutted against and connected to the bottom surface of the opening groove of the vertical groove, and the inner wall of the upper collar provided up to the bottom surface position of the opening groove is By forming a continuous airtight line with the contact surface portion of the upper end cap up to the indoor contact portion, the end surface of the upper collar is arranged at the bottom surface position of the opening groove of the vertical fence, and the indoor contact of the upper collar Since the contact surface portion of the upper end cap can be made smaller by bringing the contact portion and the vertical inner contact portion close to each other, the upper end cap can be reduced in size and the cost can be reduced.

  Furthermore, according to the inversion window which concerns on this invention, an upper end cap can be easily attached with respect to a vertical gutter by having an insertion part with respect to the upper end surface of a vertical gutter.

  Embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a longitudinal sectional view of an inward-turning window in the first embodiment, and FIG. 2 is a transverse sectional view thereof. As shown in these figures, the inward window of the present embodiment is provided with a rectangular frame 1 at the opening of a building, and a glass body 3 in the frame 1 with a Grechan 4 inside the casing 2. The shoji 5 in which the card is stored can be stored in a manner that allows it to fall inside.

  The frame 1 is configured by an upper frame 10, a lower frame 20, and left and right vertical frames 30, 30 that are rectangularly framed. Each frame is basically made of a metal material, and an indoor resin frame for preventing condensation is provided over the circumference at the indoor end. Specifically, the upper frame 10 is made of a metal upper frame 11, an indoor resin upper frame 15 having an indoor extension piece 15 a is provided at the indoor end, and the lower frame 20 is made of a metal lower frame 21. An indoor resin lower frame 25 having an indoor extension piece 25a is provided at the end, the vertical frame 30 is made of a metal vertical frame 31, and an indoor resin vertical frame 35 having an indoor extension piece 35a at the indoor end is provided. Provided.

  The indoor extension pieces 15a, 25a, and 35a formed on the indoor resin frame are continuous over the four circumferences of the frame body 1 to improve the fit of the frame provided on the indoor side of the sash. In addition, fins 6 are formed on the frame 1 at the indoor / outdoor intermediate portion of the outer peripheral surface over the entire circumference, and this is brought into contact with the building frame to fix the frame 1.

  The frame body 1 is provided with an airtight material 7 for ensuring the airtightness of the shoji 5 accommodated in the inside of the frame 1 over the four circumferences. As the airtight material 7, an outdoor airtight material 7a provided on the outdoor side of the frame body 1 and an indoor airtight material 7b provided on the indoor side of the frame body 1 are provided so as to be double airtight. ing. However, although the outdoor airtight material 7a is provided in the lower frame 20, the indoor airtight material 7b is not provided. In the case of an inward-facing window, the shoji 5 can be tilted indoors, so that the airtight material 7 is provided toward the indoor side. Moreover, the indoor side airtight material 7b is provided in a position outside the outdoor direction airtight material 7a so as not to interfere with the airtight material 7 when the shoji 5 is opened and closed.

  The upper frame 10 is formed with an outdoor projecting piece 13 and an indoor projecting piece 14 that project inward in the finding direction over substantially the entire length in the longitudinal direction. The indoor-side protruding piece 14 is formed shorter than the outdoor-side protruding piece 13, and an outdoor-side airtight material 13a and an indoor-side airtight material 14a are provided as the airtight material 7 toward the indoor side at each tip.

  The lower frame 20 is formed with an outdoor projecting piece 23 and an indoor projecting piece 24 that project inward in the finding direction over substantially the entire length in the longitudinal direction. An outdoor side airtight material 23 a that extends toward the indoor side is provided at the tip of the outdoor side protruding piece 23. On the other hand, the front end portion of the indoor-side protruding piece 24 is formed in an arc shape toward the indoor side, and is configured as an inclined guide portion 24 a that supports the shoji 5. A hinge portion 54 formed on the lower collar 50 of the casing 2 is brought into contact with the inclined guide portion 24 a, and the shoji 5 can be tilted through the hinge portion 54. As described above, since the inclined guide portion 24a is in direct contact with the lower rod 50, the airtightness of the lower side of the sash is secured instead of the indoor airtight material 7b.

  The vertical frame 30 is formed with an outdoor projecting piece 33 projecting from the outdoor surface toward the indoor side and an indoor projecting piece 34 projecting from the side surface toward the inside in the finding direction. An outdoor side airtight material 33a toward the indoor side is provided at the front end portion of the outdoor side protruding piece 33, and an indoor side airtight material 34a toward the indoor side is provided at the front end portion of the indoor side protruding piece 34, respectively. Moreover, the outdoor side protrusion piece 33 and the indoor side protrusion piece 34 are formed so that the indoor side airtight material 34a may be located at a position outside the outdoor direction airtight material 33a.

  An outdoor abutting portion and an indoor abutting portion are formed on the casing 2 constituting the shoji 5 so as to correspond to the outdoor side airtight material 7 a and the indoor side airtight material 7 b of the frame 1. In the upper collar 40, an outdoor contact portion 43 is formed at the upper end portion of the outdoor surface, and an extension piece 45 is formed at the upper end portion of the indoor surface. An indoor contact portion 44 having a substantially L-shaped cross section is formed at the tip. With the shoji 5 closed, the outdoor contact portion 43 contacts the outdoor airtight material 13a of the upper frame 10, and the indoor contact portion 44 contacts the indoor airtight material 14a of the upper frame 10.

  An outdoor abutment portion 53 is formed on the lower collar 50 at the lower end portion of the outdoor surface, and abuts against the outdoor airtight member 23a of the lower frame 20 with the shoji 5 closed. Further, as described above, the substantially semicircular hinge portion 54 is formed on the lower surface of the lower rod 50, and this slidably contacts the inclined guide portion 24 a of the lower frame 20, so that the frame 2 is attached to the frame 1. The airtightness between the lower frame 20 and the lower rod 50 is ensured. That is, an airtight line is formed by the lower surface of the hinge portion 54. A stopper 54a that protrudes toward the center of the semicircular shape is formed at the indoor side end of the hinge portion 54. The stopper 54a contacts the end of the hinge portion 54, so that the shoji 5 is closed. Inclination further to the outside of the room is prevented.

  In the vertical shaft 60, an outdoor contact portion 63 is formed at the outer end portion of the outdoor surface, and an extension piece 65 is formed at the outer end portion of the indoor surface so as to extend outward in the finding direction. An indoor abutting portion 64 having a substantially L-shaped cross section is formed at the tip. In the state in which the shoji 5 is closed, the outdoor contact portion 63 contacts the outdoor airtight material 33a of the vertical frame 30, and the indoor contact portion 64 contacts the indoor airtight material 34a of the vertical frame 30.

  In the connecting portion between the upper rod 40 and the vertical rod 60 and the connecting portion between the lower rod 50 and the vertical rod 60, a cut is generated in the indoor contact portion. Therefore, an upper end cap 70 and a lower end cap 80 are provided in order to ensure airtightness continuously. Hereinafter, these caps will be described.

  First, the connection part of the upper rod 40 and the vertical rod 60 is demonstrated. In FIG. 3, the perspective view of the state which connected the upper rod 40 and the vertical rod 60 is shown. As shown in this figure, the upper collar 40 is connected with its end face butted against the vertical collar 60. The inner peripheral surface of the vertical rod 60 is formed in a substantially U shape so that the glass body 3 can be accommodated to form an opening groove 66, and the end surface of the upper rod 40 is in contact with the bottom surface thereof, and the end portion Is paid. However, the outdoor contact portion 43 formed on the outdoor surface of the upper rod 40 is arranged in a state of winning against the vertical rod 60 so that the end portion is exposed to the outdoor side. Therefore, both the outdoor contact portion 43 and the indoor contact portion 44 of the upper rod 40 are provided up to the position of the outer peripheral surface of the vertical rod 60.

  Since the indoor abutment portion 64 of the vertical rod 60 is located on the outer side in the finding direction than the outer peripheral surface of the vertical rod 60, the indoor abutment portion 44 of the upper rod 40 does not continue as it is, and the airtight line is broken. Occurs. An upper end cap 70 is provided at this portion so that the indoor contact portion 44 of the upper rod 40 and the indoor contact portion 64 of the vertical rod 60 are made continuous.

  The upper end cap 70 is made of a resin material and is attached to the upper end surface of the vertical rod 60. The contact surface portion 71 is continuous with the indoor contact portion 44 of the upper rod 40 and the indoor contact portion 64 of the vertical rod 60, respectively. And has an upper surface covering portion 72 that closes the upper end surface of the vertical rod 60 and an insertion portion 73 that is provided at the lower portion of the upper surface covering portion 72 and is inserted and fixed from the end surface of the vertical rod 60. .

  FIG. 4 shows a perspective view of a connecting portion of the upper rod 40 and the vertical rod 60 with the upper end cap 70 attached. As shown in this figure, the contact surface portion 71 of the upper end cap 70 is substantially continuous with the indoor contact portion 44 of the upper rod 40 and the indoor contact portion 64 of the vertical rod 60, and the airtight line in this portion is continuous. I am letting. That is, the contact surface portion 71 of the upper end cap 70 is in contact with the indoor airtight material 14a of the upper frame 10 in a state in which the shoji 5 is closed, and ensures the airtightness of the shoji 5.

  In this way, by attaching the upper end cap 70 to the connecting portion of the upper rod 40 and the vertical rod 60, it is possible to eliminate the cut of the hermetic line generated between the upper rod 40 and the vertical rod 60 and to achieve continuous airtightness. . That is, the airtightness of the inward-turning window can be improved.

  Next, the connecting portion between the lower rod 50 and the vertical rod 60 will be described. FIG. 5 shows a perspective view of the state where the lower rod 50 and the vertical rod 60 are connected. As shown in this figure, the end of the lower rod 50 is accommodated in the opening groove 66 of the vertical rod 60 and the end surface of the lower rod 50 is butted against the bottom surface of the opening groove 66 and connected. The outdoor abutment portion 53 formed on the outdoor surface of the lower rod 50 is arranged in a state of winning against the vertical rod 60 so that the end portion is exposed to the outdoor side.

  On the other hand, the airtightness is ensured on the indoor side of the lower rod 50 by the hinge portion 54 as described above. Here, since the hinge portion 54 is formed up to the end surface of the lower rod 50, the end surface of the hinge portion 54 is abutted against the bottom surface of the opening groove 66 of the vertical rod 60. Further, the lower end portion of the bottom surface of the opening groove 66 of the vertical rod 60 is cut out in an arch shape in accordance with the shape of the hinge portion 54. Since the indoor abutment portion 64 of the vertical rod 60 is located outside the bottom surface of the opening groove 66 in the finding direction, the indoor abutment portion 64 does not continue to the hinge portion 54 that is the airtight line of the lower rod 50 and remains in an airtight line. A break occurs. A lower end cap 80 is provided at this portion so that the space from the hinge portion 54 of the lower rod 50 to the indoor side airtight material 34a of the vertical frame 30 that contacts the indoor contact portion 64 of the vertical rod 60 is made continuous.

  The lower end cap 80 is made of a resin material and is attached to the lower end surface of the vertical rod 60. The lower end cap 80 includes a hinge extension portion 81 having substantially the same cross-sectional shape as the hinge portion 54 of the lower rod 50. A lower surface covering portion 82 that covers the upper surface of the lower surface covering portion 82, and an insertion portion 83 that is inserted and fixed from the end surface of the vertical rod 60.

  FIG. 6 is a perspective view of a connecting portion between the lower rod 50 and the vertical rod 60 in a state where the lower end cap 80 is attached. One end surface of the hinge extension portion 81 is in contact with the bottom surface of the opening groove 66 of the vertical shaft 60 and is provided up to a position near the indoor contact portion 64. Similarly to the hinge portion 54 of the lower rod 50, the airtightness between the hinge portion 54 of the lower rod 50 and the indoor abutting portion 64 of the vertical rod 60 is slidably contacted with the inclined guide portion 24 a of the lower frame 20. Ensure sex. In this way, by attaching the lower end cap 80 to the connecting portion of the lower rod 50 and the vertical rod 60, it is possible to eliminate the break of the airtight line generated between the lower rod 50 and the vertical rod 60 and to achieve continuous airtightness. . That is, the airtightness of the inward-turning window can be improved.

  Next, a second embodiment of the present invention will be described. FIG. 7 shows a longitudinal sectional view of the inward window in the present embodiment, and FIG. 8 shows a transverse sectional view thereof. The inward windows shown in these drawings are composite sashes in which a resin material is disposed on the indoor side of a metal material. In this composite sash, the metal material of the shoji 5 is the same as that of the first embodiment, and a plate-like resin material is attached to the interior surface of the shoji 5 to improve the interior appearance of the sash. For this reason, it is used for the area where heat insulation performance is not so required.

  The basic structure of the sash is the same as that of the first embodiment, and the shoji 5 is housed in a square frame 1 so as to freely fall down. The frame 1 is formed by a rectangular frame comprising an upper frame 10, a lower frame 20, and left and right vertical frames 30, 30. The glass body 3 is accommodated in the housing 2 assembled in the above manner via the Grechan 4.

  The upper frame 10 includes an outdoor metal upper frame 11 and an indoor resin upper frame 12. The metal upper frame 11 is formed with an outdoor projecting piece 13 having the same length at the same position as the upper frame 10 of the first embodiment, and an outdoor airtight member 13a is provided toward the indoor side at the tip. . Moreover, the indoor side protrusion 14 of the same length is formed in the resin upper frame 12 in the same position as the upper frame 10 of 1st Embodiment, and the indoor side airtight material 14a faces the indoor side at the front-end | tip part. Provided.

  The lower frame 20 includes an outdoor metal lower frame 21 and an indoor resin lower frame 22. As with the upper frame 10, an outdoor projecting piece 23 is formed on the metal lower frame 21, and an outdoor airtight member 23 a directed to the indoor side is provided at the front end portion. Moreover, the indoor side protrusion piece 24 is formed in the metal lower frame 21, and the inclination guide part 24a is formed in the front-end | tip part.

  The vertical frame 30 includes a metal vertical frame 31 on the outdoor side and a resin vertical frame 32 on the indoor side. As with the upper frame 10, an outdoor protrusion 33 is formed on the metal vertical frame 31, and an indoor protrusion 34 is formed on the resin vertical frame 32. The airtight member 33a is provided at the front end of the indoor protrusion piece 34, and the indoor airtight member 34a is provided at the front end. With such a configuration, the outdoor airtight material 7a is provided over the four circumferences in the metal material, and the indoor airtight material 7b is provided in each frame other than the lower frame 20 in the resin material. And the indoor side airtight material 7b is located in the outer side of a finding direction rather than the outdoor side airtight material 7a.

  Next, the casing 2 will be described. The upper collar 40 has a plate-shaped resin upper collar 42 attached to the interior surface of the metal upper collar 41, and the lower collar 50 has the plate-shaped resin lower collar 52 attached to the interior surface of the metal lower collar 51. Further, the vertical gutter 60 is formed by attaching a plate-shaped resin vertical gutter 62 to the interior surface of the metal vertical gutter 61.

  As described above, each metal cage is the same as each cage in the first embodiment. Accordingly, the outdoor contact portion 43 and the indoor contact portion 44 are provided on the metal upper rod 41, the outdoor contact portion 53 and the hinge portion 54 are provided on the metal lower rod 51, and the outdoor contact portion 63 is provided on the metal vertical rod 61. An indoor contact portion 64 is formed, and each outdoor contact portion contacts the outdoor airtight material 7 a of the frame 1, and each indoor contact portion contacts the indoor airtight material 7 b of the frame 1. Further, the hinge portion 54 of the metal lower rod 51 is slidably brought into contact with the inclined guide portion 24a of the lower frame 20.

  FIG. 9 shows a perspective view of a connecting portion between the upper rod 40 and the vertical rod 60. As shown in this figure, similarly to the first embodiment, an upper end cap 70 having an abutment surface portion 71 is provided at the connecting portion of the upper rod 40 and the vertical rod 60, and the indoor abutment portion 44 of the upper rod 40 and The indoor abutment portion 64 of the vertical shaft 60 is made continuous. Since the upper end cap 70 of the present embodiment covers the upper surfaces of the metal vertical iron 61 and the resin vertical cage 62 by the upper surface covering portion 72, the upper surface covering portion 72 is indoors and outdoors compared to the upper end cap 70 of the first embodiment. It is formed slightly wider in the direction. The other points are the same as those of the first embodiment, and an insertion portion 73 is formed below the upper surface covering portion 72 and is inserted and fixed from the upper surface of the metal vertical rod 61.

  FIG. 10 is a perspective view of a connecting portion between the lower rod 50 and the vertical rod 60. As shown in this figure, similarly to the first embodiment, a lower end cap 80 having a hinge extension 81 is provided at a connecting portion between the lower rod 50 and the vertical rod 60, and the vertical rod is extended from the hinge portion 54 of the lower rod 50. Up to the indoor side airtight material 34a of the vertical frame 30 that contacts the 60 indoor contact portions 64 is continuous. Since the lower end cap 80 of the present embodiment covers the lower surfaces of the metal vertical iron 61 and the resin vertical cage 62 with the lower surface covering portion 82, the lower surface covering portion 82 is indoors and outdoors compared to the lower end cap 80 of the first embodiment. It is formed slightly wider in the direction. The other points are the same as those of the first embodiment, and an insertion portion 83 is formed on the lower surface covering portion 82 and is inserted and fixed from the lower surface of the metal downpipe 61.

  As described above, even in the case of the composite sash, by attaching the upper end cap 70 to the connecting portion of the upper rod 40 and the vertical rod 60 and attaching the lower end cap 80 to the connecting portion of the lower rod 50 and the vertical rod 60, A continuous airtightness can be achieved by eliminating the breaks in the airtight lines that occur between the vertical hook 60 and the vertical hook 60 and between the lower hook 50 and the vertical hook 60.

  Next, a third embodiment of the present invention will be described. FIG. 11 shows a longitudinal sectional view of the inward window in the present embodiment, and FIG. 12 shows a transverse sectional view thereof. The inward windows shown in these drawings are composite sashes in which a resin material is disposed on the indoor side of a metal material. Unlike the second embodiment, the resin material is formed so as to have a hollow interior and a thickness. For this reason, compared with the composite sash of 2nd Embodiment, heat insulation performance can be made high.

  As shown in FIGS. 11 and 12, the basic structure of the sash is the same as that of the second embodiment. Therefore, description of the common configuration is omitted. The resin upper collar 42, the resin lower collar 52, and the resin vertical collar 62 have a hollow cross section and a thickness as described above. Therefore, the upper end of the outdoor surface of the resin upper rod 42 constitutes an indoor contact portion 44 that contacts the indoor airtight material 14a of the upper frame 10, and the outdoor outer surface outer end of the resin vertical rod 62 is the chamber of the vertical frame 30. The indoor contact part 64 which contact | abuts to the inner side airtight material 34a is comprised.

  At the connecting portion of the upper rod 40 and the vertical rod 60, the indoor contact portion 44 of the upper rod 40 and the outdoor surface of the resin vertical rod 62 are substantially continuous. Since the indoor contact portion 64 of the vertical rod 60 is also formed on the outdoor surface of the resin vertical rod 62, the indoor contact portion 44 of the upper flange 40 and the indoor contact portion 64 of the vertical rod 60 are continuous. Therefore, the upper end cap 70 as in the first and second embodiments is not necessary at the connecting portion between the upper rod 40 and the vertical rod 60.

  On the other hand, in the connecting portion of the lower rod 50 and the vertical rod 60, the hinge portion 54 constitutes the airtight line of the lower rod 50, so that the lower end cap 80 is the same as in the first and second embodiments. The hinge extension 81 needs to be continuous from the hinge portion 54 of the lower rod 50 to the indoor airtight material 34a of the vertical frame 30 that contacts the indoor contact portion 64 of the vertical rod 60. FIG. 13 shows a perspective view of a connecting portion between the lower rod 50 and the vertical rod 60.

  As shown in FIG. 13, the lower end cap 80 includes a semicircular hinge extension 81 having a cross-sectional shape substantially the same as that of the hinge portion 54 of the lower rod 50, which extends from the end surface of the hinge portion 54 to the indoor contact of the vertical rod 60. It is provided over the vicinity of the contact portion 64. The hinge portion 54 and the hinge extension portion 81 are slidably brought into contact with the inclined guide portion 24a of the lower frame 20, thereby ensuring the airtightness of the lower side of the sash.

  Further, the lower end cap 80 is formed with a lower surface covering portion 82 that covers the lower end surface of the vertical rod 60 and an insertion portion 83 that is provided on the upper portion and is inserted into the vertical rod 60. This is the same as the embodiment.

  As described above, in a composite sash having a hollow resin material and high heat insulation properties, a lower end cap 80 having a hinge extension 81 is provided at a connecting portion between the lower rod 50 and the vertical rod 60, so that Continuous airtightness over the ridge 60 can be ensured.

  Although the embodiments of the present invention have been described so far, the application of the present invention is not limited to these embodiments, and can be variously applied within the scope of the technical idea.

It is a longitudinal cross-sectional view of the inversion window in 1st Embodiment. It is a cross-sectional view of the inward window in the first embodiment. It is a perspective view of the connection part of an upper gutter and a vertical gutter. It is a perspective view of the connection part of an upper collar and a vertical fence in the state which attached the upper end cap. It is a perspective view of the connection part of a lower gutter and a vertical gutter. It is a perspective view of the connection part of a lower collar and a vertical fence in the state which attached the lower end cap. It is a longitudinal cross-sectional view of the inversion window in 2nd Embodiment. It is a cross-sectional view of the inward window in the second embodiment. It is a perspective view of the connection part of the upper gutter and the vertical gutter which attached the upper end cap in 2nd Embodiment. It is a perspective view of the connection part of the lower eyelid and the vertical hook which attached the lower end cap in 2nd Embodiment. It is a longitudinal cross-sectional view of the inversion window in 3rd Embodiment. It is a cross-sectional view of the inward window in the third embodiment. It is a perspective view of the connection part of a lower collar and a vertical fence in 3rd Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Frame 2 Housing 3 Glass body 5 Shoji 7 Airtight material 7a Outdoor airtight material 7b Indoor airtight material 10 Upper frame 13a Outdoor airtight material 14a Indoor airtight material 20 Lower frame 23a Outdoor airtight material 24a Inclination guide part 30 Vertical frame 33a Outdoor side airtight material 34a Indoor side airtight material 40 Upper rod 43 Outdoor contact portion 44 Indoor contact portion 50 Lower flange 53 Outdoor contact portion 54 Hinge portion 60 Vertical shaft 63 Outdoor contact portion 64 Indoor contact portion 70 Upper end cap 71 Abutting surface portion 73 Insertion portion 80 Lower end cap 81 Hinge extension portion 83 Insertion portion

Claims (3)

In the building opening, there is provided a frame made up of an upper and lower frame and left and right vertical frames in a rectangular shape, and a frame made up of upper and lower frames and left and right vertical frames assembled in a rectangular shape inside the frame. In addition, in the inward window that is supported by the lower portion of the frame body so as to be tiltable toward the indoor side,
The frame body is provided with an outdoor-side airtight material over four circumferences, and is provided with an indoor-side airtight material in the upper frame and the left and right vertical frames,
The outdoor surface of the casing has an outdoor abutting portion that abuts the outdoor airtight material over four circumferences, and the indoor surface is substantially the entire length in the longitudinal direction at the outer end of the upper and left and right vertical rods. An indoor abutting portion that abuts the indoor airtight material over the
The upper saddle is fixed with its end face butted against the side face of the vertical fence, and the upper end face of the vertical fence is substantially continuous with the indoor abutting portion of the upper saddle and the indoor abutting portion of the vertical fence. An inward-turning window characterized in that an upper end cap having a contact surface portion is provided. The vertical gutter includes an opening groove that accommodates a glass body over substantially the entire length in the longitudinal direction of the inner peripheral surface, and has the indoor abutting portion on the outer side in the finding direction than the bottom surface of the opening groove,
The upper collar is fixed with its end face abutting against the bottom surface of the vertical groove opening groove, and the contact surface of the upper end cap is substantially continuous from the indoor contact area of the upper collar to the indoor contact area of the vertical fence. 2. An inward-turning window according to claim 1, wherein a continuous airtight line extending from the upper ridge to the vertical ridge is formed.   The inward-turning window according to claim 1 or 2, wherein the upper end cap has an insertion portion for the upper end surface of the vertical hook.

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