JP7083257B2 - Insulation structure of sliding sash - Google Patents

Description

The present invention relates to a heat insulating structure of a sliding sash that slides and opens and closes a shoji built in a sash frame.

For example, on the upper side of the sliding sash where the outer sash and the inner sash move to open and close, there is an upper frame outer rail that guides the upper stile of the outer sash and an upper frame inner rail that guides the upper stile of the inner sash. (See Patent Document 1). In this sliding window structure, the cold air cooled by the upper frame is not transmitted to the upper stile of the outer sash and the inner sash, and the outer sash and the inner sash can be built into the sash frame by the work. In addition, a certain space is secured between the upper frame and the upper stile.

Japanese Unexamined Patent Publication No. 2002-138761

However, in the heat insulating structure of the sliding sash described in Patent Document 1 described above, a certain space is secured between the upper frame and the upper stile. The cold air cooled by the upper frame that is in contact with the outside air is transmitted to the indoor side through the space between the upper frame and the upper stile, and the heat insulation performance deteriorates and dew condensation is likely to occur, while in summer etc. There is a problem that the cooling efficiency deteriorates.

Therefore, it is conceivable to fill a certain space between the upper frame and the upper stile with a heat insulating material. There is a risk of causing problems with the running of shoji and internal shoji.

Therefore, the present invention reliably insulates indoors and outdoors to improve cooling and heating efficiency even when a certain space is secured between the lower side of the resin cover for the upper frame and the upper side of the shoji, and indoors in winter and the like. It is an object of the present invention to provide a heat insulating structure of a sliding sash that can prevent dew condensation and can easily build a shoji in a sash frame by a sash window.

In order to solve the above problems, the heat insulating structure of the sliding sash according to the present invention is a heat insulating structure of the sliding sash provided with a rail outside the upper frame for guiding the upper frame of the outer sash on the upper frame, and the upper frame and the above. An outer resin cover for the upper frame is provided between the stile and the outer resin cover for the upper frame. It is characterized in that a heat insulating member for a shoji screen is provided to form a heat insulating space by having a plurality of the upper frame and the upper frame on the indoor side at an arbitrary distance in a prospective direction.
Further, the heat insulating structure of the sliding sash according to the present invention is a heat insulating structure of the sliding sash provided with a rail in the upper frame for guiding the upper stile of the shoji in the upper frame, and is between the upper frame and the upper stile. The inner resin cover for the upper frame is provided on the inner resin cover for the upper frame, and the lower end portion of the inner resin cover for the upper frame is provided on the indoor side of the inner rail of the upper frame so that the lower end portion hangs down until it contacts or approaches the upper side surface of the inner sash. It is also characterized in that a heat insulating member for a shoji screen is provided to form a heat insulating space by having a plurality of the upper frame and the upper frame at arbitrary intervals in a prospective direction.
Further, the heat insulating structure of the sliding sash according to the present invention is also characterized in that the heat insulating member for a shoji screen is elastically deformable .
Further, the heat insulating structure of the sliding sash according to the present invention is also characterized in that the heat insulating member for a shoji screen is elastically deformable.

In the heat insulating structure of the sliding sash according to the present invention, a resin cover for the upper frame is provided between the upper frame and the upper frame of the shoji, and the lower end of the resin cover for the upper frame is on the upper side surface of the shoji. Since a heat insulating member for shoji is provided with multiple hanging pieces that hang down until they come into contact with each other or close to each other at arbitrary intervals in the prospective direction, a certain space is secured between the lower side of the resin cover for the upper frame and the upper side of the shoji. Even in such a case, the heat insulating member for shoji can surely insulate the inside and outside of the room to prevent dew condensation in winter and the like, and can improve the cooling and heating efficiency.
In addition, since the shoji insulation member has multiple hanging pieces at arbitrary intervals in the prospective direction, it is easy to elastically deform even if the upper stile of the shoji comes into contact when building the shoji in a kendon style. , Shoji can be easily built in the sash frame by the Kendon method.

It is a front view which shows the indoor side (inside view) of the sliding sash of the embodiment which concerns on this invention. It is a partial cross-sectional view which shows the cross-sectional structure of the characteristic part of the heat insulating structure of the sliding sash of the embodiment which concerns on this invention. FIG. 3 is a cross-sectional view taken along the line AA in FIG. It is sectional drawing BB in FIG. It is a top view which shows the state which looked up at the upper frame of the heat insulating structure of the sliding sash of the embodiment which concerns on this invention. It is a perspective view of the upper frame of the heat insulating structure of the sliding sash of the embodiment which concerns on this invention. (A) and (b) are perspective views and cross-sectional views of a heat insulating member for an external shoji and a heat insulating member for an internal shoji that constitute the heat insulating structure of the sliding sash according to the embodiment of the present invention, respectively.

Hereinafter, the heat insulating structure of the sliding sash according to the present invention will be described with reference to the drawings. It should be noted that the embodiments described below are merely examples of the present invention, and the present invention is not limited to the embodiments described below, and can be appropriately changed within the scope of the technical idea of the present invention. be.

As shown in FIG. 1, for example, the sliding sash 1 to which the heat insulating structure of the sliding sash according to the present invention is applied has a four-circle frame with an upper frame 2, a lower frame 3, and left and right vertical frames 4, 5. The external sash 6 and the internal sash 7 are housed in the sash frame by pulling them apart. When the sash is closed, the external sash 6 is located on the left side and the internal sash 7 is located on the right side when viewed from the indoor side.

<6 external shoji, 7 internal shoji>
As shown in FIGS. 1 to 4, the outer sash 6 and the inner sash 7 are made of lightweight metal such as aluminum, upper stile 61, 71, door tip stile 62, 72, combined stile 63, 73, and lower stile, respectively. Double glass 65a, 65b, 75a, 75b is fitted between 64 and 74.

(Upper stile 61, 71)
The upper portions of the upper stiles 61 and 71 are provided with rail guide recesses 61a and 71a for guiding the upper frame outer rail 21a and the upper frame inner rail 21b, which will be described later, respectively, while the lower portions of the upper stiles 61 and 71. Is provided with glass accommodating recesses 61b and 71b in which the upper ends of the double glazing 65a, 65b, 75a and 75b are accommodated, respectively.

As shown in FIGS. 3 and 4, the upper end portions of the rail guide recesses 61a and 71a of the upper stiles 61 and 71 have a thermoplastic elastomer (TPE), rubber, or the like at the upper end portions on the outdoor side and the upper end portion on the indoor side, respectively. Airtight member fitting recesses 61a1, 61a2, 71a1, 71a2 for fitting the airtight members 66, 76 formed from the soft member are formed.

As shown in FIGS. 3 and 4, the upper ends of the double-glazed glass 65a, 65b, 75a, 75b bonded to the glass accommodating recesses 61b, 71b via the spacers 65c, 75c are the sealing material 65d. , 75d, etc. are provided.

Further, on the indoor side of the upper stiles 61 and 71, an outer sash resin cover 61c and an inner sash resin cover 71c are provided so that the cold air is blocked to the indoor side when the upper stiles 61 and 71 cool down, respectively. There is.

(External shoji resin cover 61c, internal shoji resin cover 71c)
The outer sash resin cover 61c and the inner sash resin cover 71c are each formed by extruding a synthetic resin member such as polyvinyl chloride resin (PVC) into a cross-sectional shape as shown in FIG. , 71 is formed so as to form an air layer having a predetermined thickness between the indoor side surfaces of the upper stiles 61 and 71 so as not to be exposed as much as possible.

Specifically, the outer obstacle resin cover 61c and the inner obstacle resin cover 71c are, as shown in FIGS. The first vertical surface 61c2, 71c2, which is bent at a right angle to the side surfaces 61c1, 71c1 and parallel to the indoor side surface of the upper stile 61,71, and the glass accommodating recess 61b of the upper stile 61, 71 from the lower end of the first vertical surface 61c2, 71c2. , 71b, and the inclined surfaces 61c3, 71c3 extending diagonally downward according to the inclined surface, and parallel to the indoor vertical surface of the glass accommodating recesses 61b, 71b of the upper stiles 61, 71 from the lower end of the inclined surface 61c3, 71c3. The lower side surface 61c5 extending downward from the lower end of the second vertical surface 61c4, 71c4 and the lower end of the second vertical surface 61c4, 71c4 toward the lower end of the indoor vertical surface of the glass accommodating recesses 61b and 71b of the upper stiles 61 and 71. It is equipped with 71c5.

The outdoor side ends, which are the tips of the upper side surfaces 61c1 and 71c1 of the outer sash resin cover 61c and the inner sash resin cover 71c, are the indoor upper ends of the indoor vertical pieces extending upward from the glass accommodating recesses 61b and 71b, respectively. The upper fitting recesses 61c11 and 71c11 to which the plastic is fitted are formed, while the outdoor side ends which are the tips of the lower side surfaces 61c5 and 71c5 are the indoor vertical pieces constituting the glass accommodating recesses 61b and 71b, respectively. Lower fitting recesses 61c51 and 71c51 into which the lower end of the indoor side fits are formed.

<Upper frame 2>
As shown in FIGS. 2 to 4, the upper frame 2 includes an upper frame main body 21, an outer resin cover 22 for the upper frame, an inner resin cover 23 for the upper frame, a resin cover 24 for the inner rail, and a screw hiding plate 25a. It is configured to include 25b, a windbreak plate 26, a heat insulating member 27 for external shoji, a heat insulating member 28 for internal shoji, and the like. In addition, in FIGS. 2 and 3, the windbreak plate 26 is omitted.

(Upper frame body 21)
The upper frame main body 21 is formed by extruding or bending a lightweight metal material such as aluminum into a predetermined shape, and as shown in FIGS. 2 to 4, the upper frame main body 21 is formed in a prospective direction (horizontal to the paper surface in FIGS. The direction) includes an upper frame outer rail 21a for guiding the upper stile 61 of the outer sash 6 and an upper frame inner rail 21b for guiding the upper stile 71 of the inner sash 7 in the longitudinal direction (FIGS. 2 to 2). In 4, the front and back directions of the paper surface) are configured to extend to the left and right vertical frames 4 and 5.

As shown in FIGS. 2 to 4, the upper frame main body 21 is provided with screw holes on the lower side thereof so that the outer resin cover 22 for the upper frame and the inner resin cover 23 for the upper frame can be fixed by the screws 81a and 81b, respectively. Has been done.

Further, when the outer resin cover 22 for the upper frame is fixed to the upper frame main body 21 on the lower side of the upper frame main body 21 with the screws 81a, the screw holes of the upper frame main body 21 and the outer resin cover 22 for the upper frame are aligned with each other. An L-shaped upper frame side engaging portion 21c is also provided so as to facilitate the operation.

(Outer resin cover 22 for upper frame)
The outer resin cover 22 for the upper frame is shown in FIGS. 2 to 4 in the prospective direction by extruding a synthetic resin member such as polyvinyl chloride resin (PVC) like the outer sash resin cover 61c and the inner sash resin cover 71c. It is formed in such a cross-sectional shape, and is composed of a length L1 extending from the left end of the upper frame 21 to the left side surface of the windbreak plate 26 in the longitudinal direction as shown in FIGS. 5 and 6. , It is configured to be attached by a screw 81a between the upper frame outer rail 21a and the upper frame inner rail 21b of the upper frame main body 21. That is, the outer resin cover 22 for the upper frame is provided only on the upper side of the outer sash 6 when the outer sash 6 and the inner sash 7 are closed.

The outdoor side end portion of the outer resin cover 22 for the upper frame extends to near the upper side of the upper fitting recess 61c11 formed in the outdoor side end portion of the upper side surface 61c1 of the outer shoji resin cover 61c, and extends to the outdoor side end portion thereof. Is formed with a heat insulating member fitting portion 22a to which the fitting portion 27a of the heat insulating member 27 for external obstacles is fitted and attached.

Further, in the outer resin cover 22 for the upper frame, a recessed screw recess 22b is provided at a position where the screw 81a is inserted so that the head of the screw 81a does not protrude, and the screw recess 22b is provided with screws at appropriate intervals in the longitudinal direction. A hole is provided, and after the screw 81a is inserted, it is configured to be shielded by the screw concealing plate 25a.

The outer resin cover side engagement for the upper frame that protrudes upward and engages with the upper frame side engaging portion 21c on the lower side of the upper frame body 21 between the heat insulating member fitting portion 22a and the screw recess 22b. A portion 22c is provided.

(Inner resin cover 23 for upper frame)
The inner resin cover 23 for the upper frame has a cross section as shown in FIGS. 2 to 4 in the prospective direction by extruding a synthetic resin member such as a polyvinyl chloride resin (PVC) in the same manner as the outer resin cover 22 for the upper frame. The upper side surface 23a extending in a shape facing the upper frame main body 21, the vertical surface 23b hanging vertically from the indoor side end portion of the upper side surface 23a, and the vertical surface extending horizontally from the lower end portion of the vertical surface 23b to the indoor side. The lower side surface 23c and the like are provided, and the cross section is formed in a stepped shape or a substantially Z shape.

Further, the inner resin cover 23 for the upper frame is configured with a length L2 extending in the longitudinal direction to the left and right ends of the upper frame 21 in an introspection as shown in FIGS. 5 and 6, and is composed of the upper frame main body 21. It is configured to be attached to the indoor side of the upper frame inner rail 21b by a screw 81b. That is, as shown in FIGS. 5 and 6, the upper frame inner resin cover 23 is provided on both sides of the outer sash 6 and the inner sash 7 longer than the upper frame outer resin cover 22 in the longitudinal direction.

As shown in FIGS. 2 and 4, the outdoor side end of the upper side surface 23a of the inner resin cover 23 for the upper frame extends close to the rail 21b in the upper frame, and the outdoor side end thereof is heat-insulated for internal shoji. A heat insulating member fitting portion 23a1 for fitting and attaching the fitting portion 28a of the member 28 is formed.

Further, a recessed screw recess 23a2 is provided in the upper side surface 23a of the upper frame inner resin cover 23 where the screw 81b is inserted so that the head of the screw 81b does not protrude, and the screw recess 23a2 is provided with a recess 23a2 in the longitudinal direction. Screw holes are provided at appropriate intervals, and after the screw 81b is inserted, it is configured to be shielded by the screw concealing plate 25b.

(Resin cover 24 for inner rail)
The resin cover 24 for the inner rail is formed by extruding a synthetic resin member such as polyvinyl chloride resin (PVC) in the same manner as the outer resin cover 22 for the upper frame and the inner resin cover 23 for the upper frame. As shown in FIGS. 2 to 4, the outer resin cover 22 for the upper frame and the inner resin cover 23 for the upper frame are provided in the upper frame so that the cold air cooled by the rail 21b in the upper frame does not enter the room. A cross section in the prospective direction is formed in a substantially U shape so as to cover the rail 21b, and as shown in FIGS. 5 and 6, the upper frame inner rail 21b extends to the left and right ends of the upper frame 21 in the longitudinal direction. It is configured to have almost the same length as the length L2. In the present embodiment, the inner resin cover 23 for the upper frame and the resin cover 24 for the inner rail are separate members, but these may be integrated members.

(Screw hiding plates 25a, 25b)
The screw concealing plates 25a and 25b are for hiding the screws 81a and 81b for fixing the upper frame outer resin cover 22 and the upper frame inner resin cover 23 to the upper frame 2, respectively, and are for hiding the screws 81a and 81b. The 22 and the inner resin cover 23 for the upper frame are formed of synthetic resin or the like, and are formed in the recess 22b for the screw of the outer resin cover 22 for the upper frame and the recess 23a2 for the screw of the inner resin cover 23 for the upper frame. It can be fitted and attached.

(Wind stop plate 26)
As shown in FIGS. 5 and 6, the windbreak plate 26 has a mating portion 63, 73 of the outer shoji 6 and the inner shoji 7 when the mating portion in the upper frame 2, that is, the outer shoji 6 and the inner shoji 7 is closed. In the upper part where they overlap each other, they are provided on the outdoor side and the indoor side with the resin cover 24 for the inner rail as a boundary, respectively. A soft member such as a thermoplastic elastomer (TPE) similar to the above is integrally molded.

(Insulation member 27 for external shoji, Insulation member 28 for internal shoji)
The heat insulating member 27 for the outer sash and the heat insulating member 28 for the inner sash are formed of a soft member such as a thermoplastic elastomer (TPE) or rubber like the airtight members 66 and 76, and in the present embodiment, the same material is used. As shown in FIGS. 5 and 6, the heat insulating member 27 for the outer shoji is configured with the same cross-sectional shape, and the outer resin cover for the upper frame extends from the left end of the upper frame 21 to the left side surface of the windbreak plate 26. While the heat insulating member 28 for a shoji screen has a length L1 substantially the same as that of 22, the heat insulating member 28 for a shoji screen has a length L3 from the right end of the upper frame 21 to the right side surface of the windbreak plate 26. The length L1 of the heat insulating member 27 for external shoji and the length L3 of the heat insulating member 28 for internal shoji may be the same.

As shown in FIGS. 7A and 7B, the cross-sectional shapes of the heat insulating member 27 for external obstacles and the heat insulating member 28 for internal obstacles 28 are formed in a downwardly open cross-sectional U-shape, respectively. Fitting portions 27a, 28a that fit into the member fitting portions 22a, 23a1, narrow portions 27b, 28b that are narrower than the width of the fitting portions 27a, 28a, and horizontal directions from the narrow portions 27b, 28b to the left and right. A pair of hanging piece portions 27d that hang down from the wide portions 27c and 28c in the vertical direction by the length H1 and have a substantially semicircular cross section at the lower end. , 27e, 28d, 28e.

As shown in FIGS. 2 to 4, the inner widths W1 of the wide portions 27c and 28c are the width in the prospective direction of the upper side surface 61c1 of the outer sash resin cover 61c and the airtight member on the indoor side of the upper stile 71 of the inner sash 7. While the length H1 of the hanging piece portions 27d, 27e, 28d, 28e is set based on the width of the fitting recess 71a2, the lower end portion of the hanging piece portion 27d, 27e, 28d, 28e is a lightweight metal member such as aluminum. The length is set so as to touch or slightly touch the upper stiles 61 and 71 of the outer sash 6 and the inner sash 7 composed of the above (about 2 mm in this embodiment).

Specifically, as shown in FIGS. 2 and 3, the hanging piece portion 27d on the outdoor side of the heat insulating member 27 for the external shoji is located above the outdoor tip portion of the upper side surface 61c1 of the external shoji resin cover 61c. On the other hand, the hanging piece portion 27e on the indoor side of the heat insulating member 27 for the external sash is located above the indoor side end portion of the upper side surface 61c1 of the external sash resin cover 61c, that is, substantially the first vertical surface 61c2 of the external sash resin cover 61c. The hanging pieces 27d and 27e of the heat insulating member 27 for the outer sash are attached so as to be located above, and are attached to the position off the upper stile 61 of the sash 6 made of a lightweight metal member such as aluminum. ..

The hanging piece portions 27d and 27e of the heat insulating member 27 for the external shoji have a length H1 whose lower end portions are close to each other so as to be in contact with or slightly in contact with the upper side surface 61c1 of the external shoji resin cover 61c, respectively. It is formed. The length H1 may be determined from the amount of adjustment for building the shoji (raising dimension of getting off).

Therefore, the heat insulating member 27 for the external obstacle forms a heat insulating space 27f which is an air reservoir having a width W1, a height H1, and a length L1 in the longitudinal direction with the upper side surface 61c1 of the external obstacle resin cover 61c. Since the heat insulating space 27f has little air convection and functions as a heat insulating layer, when the outer sash 6 and the inner sash 7 are closed, the air cooled or warmed by the upper frame outer rail 21a may flow into the indoor side. It prevents the temperature of the air from being transmitted to the indoor side, and conversely, the air on the indoor side and its temperature from being transmitted to the outside.

On the other hand, as shown in FIGS. 2 and 4, the hanging piece portion 28d on the outdoor side of the heat insulating member 28 for the internal shoji is fitted to the upper end portion of the rail guiding recess 71a of the upper stile 71 for mounting the airtight member. The hanging piece portion 28e on the indoor side of the heat insulating member 28 for the internal sash is located above the airtight member 76 for the internal sash formed from a soft member such as a thermoplastic elastomer (TPE) or rubber fitted to the portion 71a2. , Attached so as to be located above the outdoor side end of the upper side surface 71c1 of the resin inner shoji resin cover 71c, and the hanging pieces 28d and 28e of the heat insulating member 28 for the inner shoji are made of a lightweight metal member such as aluminum. It is attached to a position off the upper stile 71 of the sliding shoji 7.

The lower ends of the hanging piece portions 28d and 28e of the heat insulating member 28 for the internal sash contact the airtight member 76 for the internal sash or the upper side surface 71c1 of the internal sash resin cover 71c, respectively, to the extent that they do not slightly contact each other. It is provided with a length H1 so as to be close to.

Therefore, the heat insulating member 28 for the internal sash has a width W1 between the airtight member 76 for the internal sash, the recess 71a2 for fitting the airtight member of the upper stile 71 of the internal sash 7, and the tip of the upper side surface 71c1 of the internal sash resin cover 71c. A heat insulating space 28f is formed as an air pool having a height of H1 and a length of about L3. Since the heat insulating space 28f has little air convection and functions as a heat insulating layer, the air cooled or warmed by the upper frame inner rail 21b or the inner rail resin cover 24 when the outer sash 6 and the inner sash 7 are closed. Prevents the air from flowing into the indoor side, the temperature of the air being transmitted to the indoor side, and conversely, the air on the indoor side and its temperature being transmitted to the outside.

<Main effect of the heat insulating structure of the sliding sash 1 of this embodiment>
As described above, in the heat insulating structure of the sliding sash 1 of the present embodiment, it extends from the left end of the upper frame 21 to the left side surface of the windbreak plate 26 in the longitudinal direction between the upper frame outer rail 21a and the upper frame inner rail 21b. An outer resin cover 22 for the upper frame having a length L1 to be put out is provided, and an upper side surface 61c1 of the outer sash resin cover 61c whose lower end constitutes the upper side surface of the sash 6 is provided on the lower side of the outer resin cover 22 for the upper frame. A heat insulating member 27 for a shoji screen is provided which has a pair of hanging piece portions 27d and 27e that hang down until they come into contact with or are close to each other in the prospective direction.

Therefore, if a certain space is secured between the lower side of the outer resin cover 22 for the upper frame and the upper side of the outer sash 6 in a ken-style manner, the outer sash 6 and the inner sash 7 may be used. At the time of blockage, air cooled or warmed by the upper frame outer rail 21a on the outer shoji 6 side flows into the indoor side through the space, and the temperature of the air is transmitted to the indoor side, and vice versa. The air inside and its temperature try to be transmitted to the outside, but in the heat insulating structure of the sliding sash 1 of the present embodiment, a heat insulating member 27 for a shoji screen is provided on the lower side of the outer resin cover 22 for the upper frame to insulate. Therefore, when the outer sash 6 and the inner sash 7 are closed, the air cooled or warmed by the upper frame outer rail 21a on the outer sash 6 side flows into the indoor side, and the temperature of the air is transmitted to the indoor side. On the contrary, it is possible to prevent the indoor air and its temperature from being transmitted to the outside, improve the cooling and heating efficiency, and prevent the indoor dew condensation as much as possible in winter and the like.

In particular, the heat insulating member 27 for a shoji screen is made of a soft member such as a thermoplastic elastomer (TPE) or rubber, and has two hanging pieces 27d and 27e with an arbitrary interval W1 in the prospective direction. Since it is formed in a U-shaped cross section that opens downward, the upper stile 61 of the shoji 6 and the resin cover 61c of the shoji come into contact with the hanging pieces 27d and 27e when the shoji 6 is built in a kendon style. Even in such a case, the sash is easily elastically deformed and does not hinder the erection of the sash 6, so that the sash 6 can be easily erected in the sash frame of the sliding sash 1.

Further, the lower ends of the hanging pieces 27d and 27e of the heat insulating member 27 for the outer sash are close to each other so as not to touch or slightly touch the upper part of the sash 6.

Therefore, the heat insulating space 27f having a width W1, a height H1, and a length L1 formed by the heat insulating member 27 for the external obstacle between the upper side surface 61c1 of the external obstacle resin cover 61c functions as a heat insulating layer with little air convection. At the same time, all of them are soft members such as thermoplastic elastomer (TPE) and rubber, or members with low thermal conductivity such as resin. Therefore, when the outer sash 6 and the inner sash 7 are closed, they are cooled or warmed by the upper frame outer rail 21a. Improves heating and cooling efficiency by preventing the air from flowing into the indoor side and transmitting the temperature of the air to the indoor side, and conversely preventing the air inside the room and its temperature from transmitting to the outside. It is possible to prevent dew condensation in the room as much as possible in winter and the like.

Further, when the resin cover 24 for the inner rail is not provided on the upper frame inner rail 21b, the outside of the upper frame inner rail 21b is exposed to the outside when the outer sash 6 and the inner sash 7 are closed. In the heat insulating structure of the sash 1, the inner rail 21b of the upper frame is covered with the resin cover 24 for the inner rail so that the inner rail 21b made of metal having high thermal conductivity does not come into direct contact with the outside air. Efficiency can be improved, and indoor dew condensation can be prevented as much as possible in winter and the like.

Further, in the heat insulating structure of the sliding sash 1 of the present embodiment, the inner resin cover 23 for the upper frame is provided between the outer rail 21a of the upper frame and the inner rail 21b of the upper frame, and the inner resin cover 23 for the upper frame is provided on the lower side thereof. There is also a portion of length L3 from the right end of the upper frame 21 to the right side surface of the windbreak plate 26, and the lower end portion of the airtight member 76 for the internal sash and the internal sash resin cover 71c constituting the upper side surface of the internal sash 7. A heat insulating member 28 for an internal sash having a pair of hanging piece portions 28d, 28e that hangs down until it comes into contact with or is close to the upper side surface 71c1 is provided to form a heat insulating space 28f as on the external sash side.

Therefore, compared to the case where the heat insulating member 27 for the outer sash is provided on the lower side of the outer resin cover 22 for the upper frame, when the outer sash 6 and the inner sash 7 are closed, the rail 21b in the upper frame on the inner sash 7 side is further formed. Air cooled or warmed by the resin cover 24 for the inner rail flows into the indoor side, the temperature of the air is transmitted to the indoor side, and conversely, the air on the indoor side and its temperature are transmitted to the outside. It is possible to prevent this from happening, further improve the cooling and heating efficiency, and further prevent dew condensation in the room in winter and the like.

Further, when opening and closing the external sash 6 and the internal sash 7, the hanging piece portion 27d of the heat insulating member 27 for the external sash,
The lower end of 27e touches and slides on the upper side surface 61c1 of the outer sash resin cover 61c, respectively, and the hanging piece 28d and 28e lower end of the heat insulating member 28 for sash are the airtight member 76 for sash and the sash resin, respectively. Even when the cover 71c is in contact with the upper side surface 71c1 and slid, the lower ends of the hanging pieces 27d and 27e of the heat insulating member for external shoji 27 and the lower ends of the hanging pieces 28d and 28e of the heat insulating member 28 for internal shoji are substantially cross-sectional. Since it is formed in a semi-circular shape, it touches at points and slides. Therefore, when the heat insulating spaces 27f and 28f are formed in a closed shape (hollow shape), the hanging pieces 27d and 27e lower ends of the heat insulating member 27 for external shoji are opposed to contacting and sliding on the surface. In addition, it is possible to prevent wear of the lower ends of the hanging pieces 28d and 28e of the heat insulating member 28 for internal sash, and it is possible to improve the cooling and heating efficiency over a long period of time. In addition, there is no problem in running the shoji.

In the description of the above embodiment, the heat insulating member 27 for the outer sash and the heat insulating member 28 for the inner sash are paired, that is, two hanging piece portions 27d, 27e, 28d, respectively, as shown in FIG. Although it has been described as having 28e, in the present invention, the present invention is not limited to this, and the lower end portions of the hanging pieces that hang down until they come into contact with or are close to the upper side surfaces of the outer sash 6 and the inner sash 7, respectively, are spaced apart in the prospective direction. Since it is sufficient to form one or more heat insulating spaces with a plurality of spaces, three or more hanging pieces are provided at arbitrary intervals in the prospective direction to provide two or more heat insulating spaces. Of course, it may be configured to be formed, or it may be configured to connect the lower end portions of the hanging pieces in the horizontal direction. Further, the heat insulating structure of the sliding sash according to the present invention can be applied not only to the sliding window but also to the single sliding window (internal movement, external movement) and the double sliding window.

1 Sliding sash (sliding sash)
2 Upper frame 21 Upper frame body 21a Upper frame outer rail 21b Upper frame inner rail 21c Upper frame side engaging part 22 Upper frame outer resin cover 22a Insulation member fitting part 22b Screw recess 22c Upper frame outer resin cover side engaging Part 23 Inner resin cover for upper frame 23a Upper side surface 23a1 Insulation member fitting part 23a2 Recess for screw 24 Resin cover for inner rail 25a, 25b Screw concealment plate 26 Windbreak plate 27 Insulation member for external shoji 27a Fitting part 27b Narrow Part 27c Wide part 27d, 27e Hanging piece part 27f Insulation space 28 Insulation member for internal shoji 28a Fitting part 28b Narrow part 28c Wide part 28d, 28e Hanging piece part 28f Insulation space 3 Lower frame 4, 5 Vertical frame 6 External shoji 61 Upper stile 61a Rail guide recess 61a1, 61a2 Airtight member fitting recess 61b Glass storage recess 61c External sash resin cover 62 Door front stile 63 Combined stile 64 Lower stile 65a, 65b Double glass 66 Airtight member 7 Shoji 71 Upper stile 71a Rail guide recess 71a1, 71a2 Airtight member fitting recess 71b Glass storage recess 71c Inner shoji resin cover 72 Door stile 73 Combined stile 74 Lower stile 75a, 75b Double glass 76 Airtight member 81a, 81b Screw

Claims (4)

It is a heat insulating structure of a sliding sash equipped with a rail outside the upper frame that guides the upper frame of the shoji to the upper frame.
An outer resin cover for the upper frame is provided between the upper frame and the upper frame, and the outer resin cover for the upper frame has a hanging piece portion in which the lower end portion hangs down until it comes into contact with or is close to the upper side surface of the outer shoji. A heat insulating member for a shoji screen is provided to form a heat insulating space by having a plurality of the upper frame and the upper frame on the indoor side of the upper frame outer rail at arbitrary intervals in a prospective direction. Insulation structure of the sliding sash featuring. It is a heat insulating structure of a sliding sash equipped with a rail inside the upper frame that guides the upper frame of the shoji to the upper frame.
An inner resin cover for the upper frame is provided between the upper frame and the upper frame, and the inner resin cover for the upper frame has a hanging piece portion in which the lower end portion hangs down until it comes into contact with or is close to the upper side surface of the internal sash. A heat insulating member for a shoji screen is provided to form a heat insulating space by having a plurality of the upper frame and the upper frame on the indoor side of the rail in the upper frame at arbitrary intervals in a prospective direction. The insulation structure of the sliding sash is characterized by that. In the heat insulating structure of the sliding sash according to claim 1,
The heat insulating member for a shoji is a sliding sash heat insulating structure characterized by being elastically deformable . In the heat insulating structure of the sliding sash according to claim 2 .
The heat insulating member for a sliding sash is a sliding sash heat insulating structure characterized by being elastically deformable.

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