JP2015078574A - Insulation sash window - Google Patents

Abstract

A super-insulated sash window having a heat transmissibility of less than 0.8 W / m ² · K manufactured using a cypress material is realized.
A heat-insulating sash window (1) includes a window frame (2) and a shoji (3), and a gap (4) between them is sealed with an airtight material (5). The shoji 3 includes a shoji frame 21 and a multi-layer glass body 22. The shoji frame 21 includes a shoji frame main body 23 produced by cutting out a solid cypress material, and a resin heat insulating material 25 fitted in a recess 25 formed therein. The window frame 2 includes a window frame main body 11 manufactured by cutting out a solid cypress material, and a resin heat insulating material 24 fitted in a recess 13 formed therein.
[Selection] Figure 3

Description

  The present invention relates to a heat insulating sash window having a high heat insulating performance manufactured using natural wood.

  In recent years, there has been an increasing demand for high heat insulation and high airtightness for buildings such as houses and offices on the energy demand side. In order to improve the heat insulation performance of buildings such as houses, it is necessary to improve the heat insulation performance of openings such as windows.

  Conventionally, sash windows such as aluminum sashes are often used in openings of houses and the like. As a sash window having high heat insulation performance, a sash window using wood that has better heat insulation than metal has been proposed. Patent Document 1 proposes a configuration in which a surface of a wooden coffin base material on the outdoor side is covered with a metal covering material with a certain gap in a heat-insulated sash shoji. Patent Document 2 proposes a window structure in which a two-layer window glass is fitted into a wooden window frame. Patent Document 3 proposes a sash window including a heat insulating composite shoji configured by joining a non-ferrous metal outdoor member and a wooden or synthetic resin indoor member which is a heat insulating member.

Japanese Utility Model Publication No. 6-63777 Japanese National Patent Publication No. 11-509285 JP 2000-96929 A

Here, the heat insulation performance of the heat insulating sash window using the wooden frame proposed in the past is insufficient for increasing the heat insulation of a building such as a house. In order to achieve high heat insulation of the building, it is desirable to use a heat insulating sash window having a high heat insulating performance with a heat permeability of at least less than 1 W / m ² · K. However, the heat insulation performance of the conventional heat insulating sash window using a heat insulating material such as wood or synthetic resin as a frame material is low, which is an obstacle to high heat insulation of buildings.

In view of this point, an object of the present invention is to realize a heat insulating sash window having high heat insulating performance manufactured using natural wood. More specifically, it is to realize a super-insulated sash window having a heat transmissivity of less than 0.8 W / m ² · K manufactured using a cypress material.

  In order to solve the above problems, the heat-insulating sash window of the present invention is configured as follows. In addition, the code | symbol with a parenthesis is a code | symbol attached | subjected to each corresponding part in below-mentioned embodiment. These symbols are given for ease of understanding, and are not intended to limit the present invention to the embodiments.

The insulated sash window (1) of the present invention is
Window frame (2),
A shoji (3) fitted in the window frame (2) so as to be opened and closed,
An airtight material that seals a gap between the outer peripheral surface of the shoji and the inner peripheral surface of the window frame;
Have
The shoji (3) includes a shoji frame (21) and a multilayer glass body (22) fitted in the shoji frame (21).
The shoji frame (21) includes a shoji frame main body (23) manufactured by cutting a single piece of wood, a shoji frame main body recess (25) formed in the shoji frame main body, and the shoji frame main body recess (25). Equipped with a plastic shoji frame heat insulating material (24) attached to
The multilayer glass body (22) includes a plurality of glass plates (26) arranged at predetermined intervals, a hollow layer (28) formed between the glass plates (26), and the hollow layer (28). Equipped with gas insulation material enclosed in
The window frame (2) includes a window frame body (11) manufactured by cutting out a single piece of wood, a window frame body recess (13) formed in the window frame body (11), and the window frame body recess. The resin window frame heat insulating material (12) attached to (13) is provided.

  Each of the window frame and shoji frame uses a frame body made by cutting a single piece of wood. Compared to a frame in which a plurality of members are joined and joined using joining members such as adhesives and metal fittings. Excellent heat insulation performance. In addition, since the heat insulating material can be attached to the recess formed in the frame main body without using a bonding member such as an adhesive, the heat insulating performance of the wooden frame and the heat insulating material is impaired by the use of the bonding member. There is no end. Therefore, the heat insulation sash window provided with the high heat insulation performance is realizable.

  Natural wood can be used as the material of the frame body, and it is particularly desirable to use a hinoki material that is excellent in strength, weather resistance, dimensional stability, heat insulation, etc., among natural wood.

  Since a general building opening is rectangular, the heat insulating sash window is rectangular. It is desirable that the heat insulating material is disposed so as to substantially surround the four circumferences of the window frame body from the outside, and to be disposed so as to substantially surround the four circumferences of the shoji frame body from the inside. Thus, the heat insulation performance of a window frame and a shoji frame improves by arrange | positioning a heat insulating material in the state which surrounds the outer periphery of a window frame, and the inner periphery of a shoji frame. Phenol foam can be used as the heat insulating material. Phenol foam has the advantage of lower thermal conductivity than other resin heat insulating materials (excellent in heat insulating performance).

  The volume ratio of the window frame heat insulating material in the window frame is preferably in the range of 3/10 to 4/10, and more preferably in the range of 4/10 to 5/10. The volume ratio of the shoji frame heat insulating material in the shoji frame is preferably in the range of 2/10 to 5/10, and more preferably in the range of 3/10 to 5/10. If the amount of heat insulating material used is less than this, adverse effects such as heat crossing will occur (insufficient effects such as heat insulation performance will not be obtained), and if the amount of heat insulating material used is larger than this, window deformation will occur. Detrimental effects occur (effects such as structural durability cannot be obtained sufficiently).

  Next, ethylene propylene rubber or the like can be used as the airtight material. Further, the gap formed between the outer peripheral surface of the shoji and the inner peripheral surface of the window frame has a plurality of airtight spaces from the outdoor gap end that opens to the outdoor side to the indoor gap end that opens to the indoor side. It is desirable that the material is sealed in a plurality of gaps.

  By sealing the gap connecting from the indoor side to the outdoor side into a plurality of pieces, the airtightness of the gap can be improved. Further, since the volume of each gap is reduced and air convection in each gap is less likely to occur, it is possible to avoid a decrease in heat insulation performance due to the gap.

  When the shoji is opened / closed, for example, swinging (swinging), the shoji is placed on the window frame from the closed position to the open position open to the outside of the room with one end in the width direction as the center. And an opening / closing mechanism that can be pivoted, and a lock mechanism that locks the shoji in the closed position and can be unlocked manually.

According to experiments by the present inventors, it has been confirmed that a heat insulating sash having a high heat insulating performance with a heat permeability of 0.8 W / m ² · K or less can be realized. Moreover, it was confirmed that the heat insulation sash window provided with the high heat insulation performance of less than 0.6 W / m < ² > K is realizable by setting conditions appropriately. Therefore, according to this invention, it is possible to obtain the heat insulation sash window using the natural wood provided with the extremely high heat insulation performance which was not able to be obtained conventionally.

It is a perspective view which shows the opening-and-closing type heat insulation sash window which concerns on embodiment of this invention. It is the front view and back view of a heat insulation sash window. It is the longitudinal cross-sectional view and cross-sectional view of a heat insulation sash window. It is an enlarged partial sectional view of a window frame of a heat insulation sash window and a shoji. It is a disassembled perspective view of the window frame main body and shoji frame main body of a heat insulation sash window. It is a disassembled perspective view of the window frame of a heat insulation sash window. It is a disassembled perspective view of the shoji frame of a heat insulation sash window. It is the front view and side view which show the example of a locking mechanism. It is the longitudinal cross-sectional view which shows the example of the test body of a heat insulation sash window, and a cross-sectional view.

  Embodiments of a heat insulating sash window to which the present invention is applied will be described below with reference to the drawings.

(overall structure)
First, with reference to FIGS. 1-3, the whole structure of the opening-and-closing type heat insulation sash window which concerns on embodiment is demonstrated. FIG. 1 is a perspective view showing a heat insulating sash window, FIG. 2A is a front view showing the heat insulating sash window viewed from the outdoor side, and FIG. 2B is a view showing the heat insulating sash window from the indoor side. It is a rear view which shows the case. 3A is a longitudinal sectional view of the heat insulating sash window taken along line IIIA-IIIA shown in FIG. 2, and FIG. 3B is a heat insulating sash window taken along line IIIB-IIIB shown in FIG. It is a transverse cross section at the time of cut. In the following, for convenience of explanation, the direction of arrow X is described as the width direction of the heat insulating sash window, the direction of arrow Y is the depth direction, and the direction of arrow Z is the vertical direction. (Left and right, front and rear) are not limited to the embodiments.

  As shown in these drawings, the heat insulating sash window 1 includes a vertically long rectangular window frame 2 and a vertically long rectangular shoji 3 fitted in a rectangular opening of the window frame 2 so as to be opened and closed. In the rectangular frame-like gap 4 formed between the window frame 2 and the shoji 3, a plurality of airtight members 5 are arranged in this example, as can be seen from FIG. Is sealed in an airtight state.

  The shoji 3 is attached to the window frame 2 by an opening / closing mechanism 6. The opening / closing mechanism 6 allows the shoji 3 to swing open to the outside of the room with the upper and lower ends on the right side when viewed from the room side as the center. Since a mechanism that is generally used can be used as the opening / closing mechanism 6, description thereof is omitted in this specification. For example, the shoji 3 can be opened from the closed position 3A shown in FIG. 2 to the open position 3B opened to the outdoor side by a predetermined angle as shown in FIG. A lock mechanism 7 (see FIG. 8 to be described later) is attached to the opening / closing mechanism 6. The shoji 3 is locked at the closed position 3A by the lock mechanism 7, and the lock by the lock mechanism 7 can be released by a manual operation. .

  As can be seen from FIG. 3, the window frame 2 is composed of a rectangular window frame main body 11 manufactured by cutting out a solid cypress material, and a window frame heat insulating material 12 made of phenol foam attached to the window frame main body 11. ing. In some cases, a heat insulating material other than phenol foam can be used. The window frame heat insulating material 12 is fitted into a plurality of window frame main body recesses 13 dug into the window frame main body 11.

  Similarly to the window frame 2, the shoji 3 includes a vertically long rectangular shoji frame 21 and a rectangular multi-layer glass body 22 fitted in the shoji frame 21. The shoji frame 21 is composed of a rectangular shoji frame main body 23 manufactured by cutting out a solid cypress material, and a shoji frame heat insulating material 24 made of phenol foam attached to the shoji frame main body 23. In some cases, a heat insulating material other than phenol foam can be used. The shoji frame heat insulating material 24 is fitted into a plurality of shoji frame body recesses 25 dug into the shoji frame body 23.

  The multilayer glass body 22 includes four rectangular glass plates 26 having the same shape and arranged in the depth direction Y at regular intervals. As the glass plate 26, special metal coating glass (low emission glass / Low-E glass) is used. Between the glass plates 26 facing each other, resin spacers 27 having a constant width are inserted along the outer peripheral edge portions thereof, whereby three hollow layers 28 are formed between the four glass plates 26. Is formed. A heat insulating material 29 made of urethane foam is attached so as to cover the outer peripheral edge portion including the outer peripheral end face of the multilayer glass body 22 having this configuration, and each of the hollow layers 28 is sealed. It is also possible to use a heat insulating material other than urethane foam as the heat insulating material. Each hollow layer 28 is filled with a gas heat insulating material such as krypton gas, argon gas, or xenon gas. In this example, krypton gas is enclosed.

(Insulation location)
FIG. 4 is an enlarged partial cross-sectional view showing cross sections of the window frame 2 and the shoji 3. FIG. 5 is an exploded perspective view showing only the window frame main body 11 and the shoji frame main body 23 of the heat insulating sash window 1. FIG. 6 is an exploded perspective view showing the window frame main body 11 and the window frame heat insulating material 12 constituting the window frame 2 of the heat insulating sash window 1. FIG. 7 is an exploded perspective view showing the shoji frame 21 and the shoji frame heat insulating material 24 constituting the shoji 3 of the heat insulating sash window 1. With reference to FIGS. 3-7, the installation location of the heat insulating material of the window frame 2 and the shoji 3 is demonstrated.

  First, as can be seen from FIG. 4, the window frame main body 11 has a flat U-shaped cross-section opened to the outer peripheral side, and is a rectangular frame that is symmetrical vertically and horizontally as a whole. As can be seen from FIG. 5, the window frame main body 11 has a rectangular frame portion 30 composed of an upper frame 31, a lower frame 32, and left and right eaves frames 33 </ b> L and 33 </ b> R, and an inner four peripheral surface on the indoor side of the rectangular frame portion 30. And a rectangular frame-shaped pressing edge portion 34 formed integrally. The pushing edge portion 34 faces the shoji frame 21 from the indoor side.

  As can be seen from FIG. 5, the window frame main body 11 has a predetermined depth that is formed along the upper surface of the upper frame 31 and opens upward as a window frame main body recess 13 for mounting the window frame heat insulating material 12. The upper frame recess 13a, the lower frame recess 13b formed along the lower surface of the lower frame 32 and opened downward, and the outer side surfaces of the left and right collar frames 33L and 33R, respectively. Reed frame recesses 13Lc and 13Rc having a predetermined depth that are formed on the outside of the side are formed. As can be seen from FIG. 6, in each of the upper frame recess 13a, the lower frame recess 13b, and the frame frame recesses 13Lc, 13Rc, an upper frame heat insulating material 12a, a lower frame heat insulating material 12b, which is a window frame heat insulating material 12, and left and right eaves The frame heat insulating materials 12Lc and 12Rc are fitted in a state without a gap without using an adhesive or the like.

  The upper frame recessed part 13a and the lower frame recessed part 13b are shallow recessed parts on the outdoor side. Correspondingly, as the upper frame heat insulating material 12a and the lower frame heat insulating material 12b, a thick plate-like heat insulating material and a thin heat insulating material are used. Two sheets of plate-like heat insulating material are fitted. The left and right rib frame recesses 13Lc and 13Rc are three recesses in the vertical direction, and each recess has a shallow recess on the outdoor side. Correspondingly, a thick plate-like heat insulating material and a thin plate-like heat insulating material are fitted in each recess.

  In addition, the four corners of the outer periphery of the rectangular frame portion 30 are right-angled corner portions. As shown in FIGS. 5 and 6, a narrow groove 13e having a width of about 10 mm and a depth of about 20 mm is formed in each protruding corner portion. In these grooves 13e, narrow corner heat insulating materials 12e1 and 12e2 are fitted without gaps.

  Next, as can be seen from FIG. 5, the pressing edge portion 34 is also formed with a pressing edge recess 13 d as a part of the window frame main body recess 13. The pressing edge recess 13 d is a rectangular frame-shaped recess having a predetermined depth that extends along the inner four peripheral surfaces of the rectangular frame portion 30 on the indoor side and opens to the side of the shoji frame 21. As can be seen from FIG. 6, the push-edge heat insulating material 12 d, which is the window frame heat-insulating material 12, is fitted into the push-edge recessed portion 13 d without a gap.

  Thus, in the rectangular frame part 30 of the window frame main body 11, the heat insulating material is arrange | positioned in the state which covers the outer periphery 4 peripheral surface. Moreover, the heat insulating material is arrange | positioned in the state which covers the inner four surrounding surface of the rectangular frame part 30 from an inner side.

  On the other hand, as can be seen from FIG. 4, the shoji frame main body 23 of the shoji frame 21 has a U-shaped cross-sectional shape opened inward. As can be seen from FIG. 5, the shoji frame 21 includes an upper rail 41, a lower rail 42, and left and right collars 43 </ b> L and 43 </ b> R. As the shoji frame main body recess 25, an upper beam recess 25a, a lower beam recess 25b, and left and right collar recesses 25Lc, 25Rc are formed. The upper beam recess 25a is a recess having a predetermined depth that is formed along the lower surface of the upper beam 41 and opens downward. The lower beam recess 25b is a recess having a predetermined depth that is formed along the upper surface of the lower beam 42 and opens upward. The left and right collar recesses 25Lc and 25Rc are recesses having a predetermined depth that are formed along the inner side surfaces of the left and right collars 43L and 43R, respectively, and open to the inner side. It should be noted that the four corner portions on the inner four peripheral surfaces of the shoji frame main body 23 are not formed with recesses and remain flat, and right-angled corner portions remain, respectively.

  As can be seen from FIG. 7, the upper beam recess 25a, the lower beam recess 25b, and the left and right saddle recesses 25Lc, 25Rc have outer, upper, lower, left and right outer peripheries as the shoji frame heat insulating material 24, respectively. The upper beam heat insulating material 24a, the lower beam heat insulating material 24b, and the left and right eaves heat insulating materials 24Lc and 24Rc, which are in contact with the end surfaces via the heat insulating material 29, are fitted without gaps.

  Here, the volume ratio of the window frame heat insulating material 12 in the window frame 2 is set to a value within the range of 4/10 to 5/10. This volume ratio can be set to a value within the range of 3/10 to 6/10. Moreover, the volume ratio of the shoji frame main body 23 and the shoji frame heat insulating material 24 in the shoji frame 21 is set to a value within the range of 3/10 to 5/10. This volume ratio can be set to a value within the range of 2/10 to 5/10.

(Arrangement of airtight material)
Next, the gap 4 and the airtight material 5 between the window frame 2 and the shoji 3 will be described mainly with reference to FIGS. 3, 4 and 5.

  A plurality of airtight materials 5, in this example, four rectangular frame-shaped airtight materials 51 to 54 are arranged. Each of the airtight materials 51 to 54 is made of, for example, ethylene propylene rubber. The gap 4 formed between the outer peripheral surface of the shoji 3 and the inner peripheral surface of the window frame 2 is between the outdoor gap end 4a that opens to the outdoor side and the indoor gap end 4f that opens to the indoor side. It is divided into three gap portions by the airtight materials 51 to 54, and each is sealed.

More specifically, as shown in FIGS. 4 and 5, the window frame main body inner peripheral surface of the window frame 2 has a first inner peripheral surface 11a, a first step surface 11b, A second inner peripheral surface 11c and a second step surface 11d having an inner dimension smaller than that of the first inner peripheral surface 11a are formed. Moreover, the end surface 11e of the pressing edge heat insulating material 12d extended continuously to the 2nd level | step difference surface 11d, and the end surface 11f of the pressing edge part 34 continuing to the said end surface 11e are formed.

  On the outer peripheral surface of the shoji frame main body 23 facing the inner peripheral surface of the window frame 2, the first outer peripheral surface 23a facing the inner peripheral surface 11a via the first gap 4b and the first step surface 11b from the outdoor side. A first step surface 23b that faces through the second gap 4c and a second outer peripheral surface 23c that faces through the third gap 4d are formed on the second inner circumferential surface 11c. In addition, an indoor side end surface 23d is formed continuously to the second outer peripheral surface 23c so as to confront the second step surface 11d, the end surface 11e, and the end surface 11f of the window frame from the outdoor side through the fourth gap 4e. .

  Here, the 1st airtight material 51 is attached to the shoji 3 side, and the remaining 2nd-4th airtight materials 52-54 are attached to the window frame 2 side. In a state where the shoji 3 is in the closed position 3A, the first airtight member 51 seals the outdoor gap end 4a, and the second airtight member 52 seals between the first gap 4b and the second gap 4c. . The third hermetic material 53 seals between the third gap 4d and the fourth gap 4e, and the fourth hermetic material 54 seals the indoor gap end 4f. Thereby, the gap 4 is divided into three gap portions from the outdoor side toward the indoor side, and the respective gap portions are sealed. Therefore, the airtightness and heat insulation of the heat insulation sash window 1 can be improved.

(Lock mechanism)
Next, FIG. 8 is a front view and a side view showing an example of a locking mechanism for locking the shoji 3 to the window frame 2. The illustrated locking mechanism 7 includes a frame side unit 70 attached to the left side frame 33L of the window frame 2, and a shoji side unit 90 attached to the left side 43L of the shoji 3 facing the hard frame 33L. Yes.

  The frame-side unit 70 includes a frame-side mounting plate 71 that is screwed and fixed to the collar frame 33L, and an upper guide piece 72 and a lower guide piece 73 are attached to upper and lower ends of the mounting plate 71, respectively. An upper guide groove 74 and a lower guide groove 75 are formed between the surface 71a and the upper guide piece 72 of the mounting plate 71 and between the surface 71a and the lower guide piece 73, respectively. On the surface 71a of the mounting plate 71, a long and narrow slide plate 76 is disposed so as to be slidable along the surface 71a. The upper and lower ends of the slide plate 76 are passed through the upper guide groove 74 and the lower guide groove 75.

  A frame side engagement piece 77 is integrally formed at a portion between the upper and lower guide pieces 72 and 73 in the slide plate 76. The frame-side engaging piece 77 is formed continuously from the edge of the slide plate 76 to the leading edge of the bent portion 77a that is bent in a direction perpendicular to the surface 71a. The frame-side engagement piece 77 is formed with an engagement end surface 77b having a flat trapezoidal outline.

  Here, a support shaft 78 is fixed to the mounting plate 71 in a state orthogonal to the surface 71a. An elongated manual operation plate 79 is attached so as to be pivotable about the support shaft 78. One end of the link 80 is rotatably connected to a portion of the manual operation plate 79 on the rear end side from the support shaft 78, and the other end of the link 80 is rotatably connected to the frame side engagement piece 77.

  When the manual operation plate 79 is turned in the direction indicated by the arrow A from the unlock position 77A indicated by the solid line in FIG. 8, the turning motion of the manual operation plate 79 is converted into the linear slide motion of the slide plate 76 via the link 80. The slide plate 76 slides in the direction indicated by the arrow B from the position indicated by the solid line in FIG. The frame side engagement piece 77 integrally formed with the slide plate 76 also slides. The frame side engagement plate 77 is movable from the unlock position 77A indicated by the solid line to the lock position 77B indicated by the imaginary line as the manual operation plate 79 turns.

On the other hand, the shoji side unit 90 attached to the collar 43L of the shoji 3 includes a shoji side mounting plate 91. The shoji side mounting plate 91 includes a rectangular base plate portion 91a and an upright plate portion 91b extending in a direction orthogonal to the base plate portion 91a. The upright plate portion 91 b faces the surface 71 a of the frame side mounting plate 71 in parallel in the vicinity of the lower guide piece 73 in the rectangular frame side mounting plate 71. The frame side engaging piece 77 of the slide plate 76 can slide between the upright plate portion 91 b and the surface 71 a of the frame side mounting plate 71.

  A shoji side engaging roller 92 is attached to the upright plate portion 91b in a state perpendicular to the upright plate portion 91b. When the manual operation plate 79 is turned to move the frame side engagement plate 77 to the lock position 77B indicated by an imaginary line, the frame side engagement plate 77 is engaged with the shoji side engagement roller 92 from the outdoor side. Thereby, the shoji 3 is locked and the shoji 3 cannot be opened to the outdoor side. When the manual operation plate 79 is operated and the frame side engagement plate 77 is pulled up to the lock release position 77 </ b> A shown by the solid line in FIG. 8, the frame side engagement plate 77 is disengaged from the shoji side engagement roller 92. Thereby, the lock | rock of the shoji 3 is cancelled | released and it becomes possible to open the shoji 3 to the outdoor side.

(Dimension example of each part)
In addition, the dimension of each part of the heat insulation sash window 1 of this example can be made into the value within the following range.
Window frame prospect: 120mm ~ 180mm
Window frame finding: 15mm to 40mm
Shoji prospect: 65mm-120mm
Shoji finding: 50mm ~ 90mm
Pushed edge prospect: 20mm ~ 60mm
Pressed edge finding: 30 mm to 70 mm
Prospect of multi-layer glass body: 20 mm to 40 mm
Height of gap (air layer): 3 mm to 10 mm
Width of gap (air layer): 10mm to 40mm

The present inventors conducted a heat insulation test on a specimen (heat insulation sash window) having the shape and dimensions shown in FIG. 9 according to JIS A4710 (a test method for heat insulation performance of joinery). Table 1 shows an example of the test results. As shown in Table 1, it was confirmed that a heat-insulating sash window having excellent heat-insulating performance with a thermal conductivity of less than 0.6 W / m ² · K was obtained.

In addition, the dimension of each part of a test body is as follows.
Window frame prospect: 153mm
Window frame finding: 20mm
Expected shoji paper: 85mm
Shoji finding: 70mm
Pushed edge expectation: 45mm
Pushing edge finding: 51mm
Prospect of double-layer glass body: 30 mm
Height of gap (air layer): 3 mm to 6.5 mm
Width of gap (air layer): 15mm to 42mm

DESCRIPTION OF SYMBOLS 1 Heat insulation sash window 2 Window frame 3 Shoji 3A Closed position 3B Open position 4 Gap 4a Outdoor side gap edge 4b First gap 4c Second gap 4d Third gap 4e Fourth gap 4f Indoor side gap end 5 Airtight material 6 Opening and closing mechanism 7 Lock mechanism 11 Window frame body 11a First inner peripheral surface 11b First step surface 11c Second inner peripheral surface 11d Second step surface 11e End surface 11f End surface 12 Window frame heat insulating material 12a Upper frame heat insulating material 12b Lower frame heat insulating material 12Lc, 12Rc Reed frame heat insulating material 12d Push edge heat insulating material 12e1, 12e2 Corner heat insulating material 13 Window frame main body recessed portion 13a Upper frame recessed portion 13b Lower frame recessed portion 13Lc, 13Rc Reed frame recessed portion 13d Pressed edge recessed portion 13e Groove 21 Shoji frame 22 Shoji frame main body 23a 1st outer peripheral surface 23b 1st level | step difference surface 23c 2nd outer peripheral surface 23d Indoor side end surface 24 Shoji frame heat insulating material 24a Upper rail heat insulating material 24b Lower rail heat insulating material 24Lc 24Rc 竪 框 Heat insulating material 25 Shoji frame main body recessed portion 25a Upper beam recessed portion 25b Lower beam recessed portion 25Lc, 25Rc 竪 框 Recessed portion 26 Glass plate 27 Spacer 28 Hollow layer 29 Heat insulating material 30 Rectangular frame portion 31 Upper frame 32 Lower frame 33L, 33R 34 Push edge portion 41 Upper rail 42 Lower rail 43L, 43R 竪 框 51-54 Airtight material 70 Frame side unit 71 Frame side mounting plate 71a Surface 72 Upper guide piece 73 Lower guide piece 74 Upper guide groove 75 Lower guide groove 76 Slide plate 77 Frame side engagement piece 77A Lock release position 77B Lock position 77a Bending portion 77b Engagement end surface 78 Support shaft 79 Manual operation plate 80 Link 90 Shoji side unit 91 Shoji side mounting plate 91a Base plate portion 91b Standing plate portion 92 Roller

Claims (11)

Window frame (2),
A shoji (3) fitted in the window frame (2) so as to be opened and closed,
An airtight material that seals a gap between the outer peripheral surface of the shoji and the inner peripheral surface of the window frame;
Have
The shoji (3) includes a shoji frame (21) and a multilayer glass body (22) fitted in the shoji frame (21).
The shoji frame (21) includes a shoji frame main body (23) manufactured by cutting a single piece of wood, a shoji frame main body recess (25) formed in the shoji frame main body, and the shoji frame main body recess (25). Equipped with a plastic shoji frame heat insulating material (24) attached to
The multilayer glass body (22) includes a plurality of glass plates (26) arranged at predetermined intervals, a hollow layer (28) formed between the glass plates (26), and the hollow layer (28). Equipped with gas insulation material enclosed in
The window frame (2) includes a window frame body (11) manufactured by cutting out a single piece of wood, a window frame body recess (13) formed in the window frame body (11), and the window frame body recess. (13) provided with a resin window frame heat insulating material (12) mounted on;
Insulated sash window (1) characterized by the above.   The heat insulating sash window (1) according to claim 1, wherein the shoji frame main body (23) and the window frame main body (11) are made of cypress. The window frame body (11) has a rectangular shape including an upper frame (31), a lower frame (32), and left and right frame frames (33L, 33R),
As the window frame main body concave portion (13), an upper frame concave portion (13a) having a predetermined depth that is formed along the upper surface of the upper frame (31) and opens upward, and a lower surface of the lower frame (32). Formed along the outer side surface of each of the lower frame recess (13b) having a predetermined depth that opens downward and the left and right rib frames (33L, 33R), and laterally outward. An open frame recess (13Lc, 13Rc) having a predetermined depth is formed,
As the window frame heat insulating material (12), the upper frame heat insulating material (12a) fitted into each of the upper frame concave portion (13a), the lower frame concave portion (13b) and the frame frame concave portion (13Lc, 13Rc) without any gap. The lower frame heat insulating material (12b) and the left and right frame heat insulating materials (12Lc, 12Rc),
The shoji frame body (23) has a rectangular shape including an upper rail (41), a lower rail (42), and left and right collars (43L, 43R),
The shoji frame main body recess (25) is formed along the lower surface of the upper rail (41) and opens downward, and has a predetermined depth on the upper rail recess (25a) and the upper surface of the lower rail (42). Formed along the inner side surface of each of the lower beam recess (25b) having a predetermined depth that is open along the upper side and the left and right collars (43L, 43R). An open recess (25Lc, 25Rc) having a predetermined depth is formed,
As the shoji frame heat insulating material (24), each of the upper beam recess (25a), the lower beam recess (25b) and the flange recess (25Lc, 25Rc) is mounted without any gap, and the multilayer glass body (22 ), An upper rail heat insulating material (24a), a lower rail heat insulating material (24b), and left and right heel heat insulating materials (24Lc, 24Rc) respectively in contact with the upper, lower, left and right outer peripheral end surfaces. The heat insulation sash window (1) of 2. The window frame body (11)
A rectangular frame portion (30) comprising the upper frame (31), the lower frame (32), and the left and right hook frames (32L, 32R);
A rectangular frame-shaped pressing edge portion (34) integrally formed on the inner peripheral surface of the rectangular frame portion (30) and facing the shoji frame (21) from the indoor side;
With
Between the rectangular frame part (30) and the pressing edge part (34), a pressing edge recess (with a predetermined depth) opened to the outdoor side extending along the outdoor end surface of the pressing edge part (34). 13d) is formed,
In the pressing edge recess (13d), a resin-made pressing edge heat insulating material (12d) is fitted without a gap,
The heat insulation sash window (1) according to claim 3. The window frame heat insulating material (12) and the shoji frame heat insulating material (24) are phenol foam heat insulating materials,
The heat insulation sash window (1) according to claim 4. The volume ratio of the window frame heat insulating material (12) in the window frame (2) is a value within a range of 3/10 to 6/10,
The volume ratio of the shoji frame heat insulating material (24) in the shoji frame (21) is a value within a range of 2/10 to 5/10.
The heat insulation sash window (1) according to claim 5. A plurality of rectangular frame-shaped airtight materials (51 to 54) as the airtight material (5),
The gap (4) formed between the outer peripheral surface of the shoji (3) and the inner peripheral surface of the window frame (2) is opened to the indoor side from the outdoor gap end (4a) that opens to the outdoor side. The space between the indoor side gap end (4f) is sealed by a plurality of gap portions by the airtight material (51-54),
The heat insulation sash window (1) according to any one of claims 1 to 6. In the gap (4), a first gap to a fourth gap (4b to 4e) are formed in this order from the outdoor gap end (4a) toward the indoor gap end (4f).
The airtight material (5) includes four first to fourth airtight materials (51 to 54),
The window frame (2) has an internal dimension smaller than the first inner peripheral surface (11a), the first step surface (11b), and the first inner peripheral surface (11a) from the outdoor side toward the indoor side. A step-like shape having a second inner peripheral surface (11c), a second step surface (11d), an end surface (11e) of the pressed edge heat insulating material (12d), and an end surface (11f) of the pressed edge portion (34). It has an inner peripheral surface part,
The shoji frame (21) includes a first outer peripheral surface (23a) facing the first inner peripheral surface (11a) via the first gap (4b), and a first step surface (11b) from the outdoor side. A first step surface (23b) confronting via the second gap (4c), a second outer peripheral surface (23c) confronting the second inner peripheral surface (11c) via the third gap (4d), In addition, the second stepped surface (11d), the end surface (11e) of the pressed edge heat insulating material (12d), and the end surface (11f) of the pressed edge portion (34) are opposed to each other through the fourth gap (4e). An indoor side end face (23d)
The first hermetic material (51) seals the outdoor gap end (4a),
The second hermetic material (52) seals between the first gap (4b) and the second gap (4c),
The third hermetic material (53) seals between the third gap (4d) and the fourth gap (4e),
The fourth hermetic material (54) seals the indoor gap end (4f),
The heat insulation sash window (1) according to claim 7.   The heat insulating sash window (1) according to claim 7 or 8, wherein the airtight material (5) is ethylene propylene rubber. The shoji (3) can be swung with respect to the window frame (2) from a closed position (3A) to an open position (3B) opened to the outdoor side, with one end in the width direction as a center. Attached opening and closing mechanism (6);
A lock mechanism (7) that locks the shoji (3) in the closed position (3A) and can be unlocked by manual operation;
have,
A heat insulating sash window (1) according to any one of the preceding claims. The thermal conductivity is less than 0.6 W / m ² · K,
Insulated sash window (1) according to any one of the preceding claims.