JP6502051B2 - Heat insulation sash - Google Patents

Description

  The present invention relates to a thermal insulation sash installed at an opening of a building.

Conventionally, heat insulation is required for the sash installed in the opening of a building, and heat is generated over the indoor and outdoor by forming the frame by connecting the indoor side member and the outdoor side member with the heat insulating member. Thermal insulation sash is known to prevent the transmission of heat.
There is also known a composite heat insulating sash in which the indoor side portions of the frame and the housing are formed of a resin material to improve the heat insulating performance.
Then, in the thermal insulation sash of the wrong type, the resin covering member covers the space between the outer guide rail of the outdoor side member and the inner guide rail of the indoor side member, and the shielding member is provided outside the inner guide rail. A heat insulation sash in which the heat insulation performance is improved by preventing the direct contact of the outside air or the like to the guide rails by providing the same has been known (Patent Document 1).

JP 2001-55869 A

Normally, the sash in the wrong type is sealed with a tight material between the shoji and the frame to block the outdoor and indoor space, but the air to which cold heat is transmitted through the guide rails etc. is between the shoji and the frame. By convecting in the space in between, cold heat was transferred to the indoor space, leading to a decrease in the heat insulation performance. In particular, between the upper surface of the shoji and the inner peripheral surface of the upper frame, it is necessary to secure a large space for the convenience of securing the upset dimension by the kendon. There was also a limitation in bringing the air into contact with each other, and the transfer of cold heat by the convection of air in the large space between the upper surface of the shoji and the inner peripheral surface of the upper frame could not be ignored.
In the heat insulation sash of Patent Document 1 described above, the provision of the shielding member suppresses the direct contact of the outside air with the guide rails of the indoor side member to improve the heat insulation performance. The transfer of cold heat by air convection in the space between the surfaces was not considered.
Therefore, cold heat transmitted from the outside to the outdoor side member is transmitted to the air as radiant heat from the indoor surface of the guide rail of the outdoor side member, and further transferred to the room by convection of air in the space between the shoji and the frame. There was a possibility of
Moreover, in the composite heat insulation sash formed by forming the indoor side part of the frame by the resin material, the cold heat transmitted through the screw for fixing the resin material is the space between the shoji and the frame. There was a possibility that it was transmitted to the room by the convection of air.

  The present invention has been made in view of the above circumstances, and is a heat insulating sash capable of suppressing the convection of the air to which cold heat has been transmitted to the indoor space without giving a resistance to the opening / closing operation of the shoji, and improving the heat insulation performance. The purpose is to provide

In the present invention, the upper and lower frames and the left and right vertical frames are assembled four times, and the panel is mounted on the inner periphery of a frame having a guide rail and four upper and lower ridges and left and right ridges assembled And at least one side of the frame is made of a metal member and a resin member, and at least one side of the frame is made of a metal member and a resin. It consists of a member, and a fin-like projecting portion is provided at the inner peripheral end of the indoor side of the resin member of the frame of at least one side of the frame, and the projecting portion is at least one side of the frame It is characterized by proximity | contacting in the non-contact state with respect to the chamber | room side surface of the resin member of (i).

  The projection provided on the frame separates the space between the shoji and the frame and the indoor space, thereby suppressing the convection of the air to which cold heat has been transmitted to the indoor space. Moreover, since the projection provided on the frame is in close contact with the side surface of the housing in a non-contact state, the projection does not contact the shoji during opening and closing of the shoji, and smooth opening and closing of the turning shoji It can be maintained.

It is a longitudinal cross-sectional view of the heat insulation sash which concerns on the 1st Embodiment of this invention. It is a cross-sectional view of the heat insulation sash which concerns on the 1st Embodiment of this invention. It is the top view which looked at the combined part of the upper frame of the heat insulation sash of this invention from the bottom. It is an expanded longitudinal cross-sectional view of the upper frame part of the heat insulation sash which concerns on the 1st Embodiment of this invention. It is an expanded longitudinal cross-sectional view of the upper frame part of the heat insulation sash which concerns on the 2nd Embodiment of this invention. It is a perspective view explaining the lower corner part side of a box which the projection of a heat insulation sash which concerns on embodiment of this invention adjoins.

The configuration of the heat insulation sash of the embodiment of the present invention will be described with reference to the drawings.
(Whole configuration)
The heat insulation sash of the embodiment of the present invention is installed at a building opening, and the upper frame 11, the lower frame 12, and the frame 1 formed by combining the right and left vertical frames 13 and 14 into four circles; The lower shell 22, 32 and the left and right vertical bar (toes 23, 23 and the joint bar 24, 33) are formed on the four circumferences, and the panel body is fitted on the inner circumference. The sliding frame is configured as a sliding window by movably supporting the inner and outer shojis 2 and 3 in the left and right direction along the outer guide rails formed in the frame 1.
The heat insulation sash according to the present invention is not limited to the sliding window but may be any type of heat insulation sash as long as the sliding door is opened laterally with respect to the window frame, such as a single sliding window. May be

-Embodiment-
A thermal insulation sash according to a first embodiment of the invention will be described with reference to FIGS.
(Structure of frame)
The upper frame 11 is a connection made of a heat insulating material such as a resin for connecting the outdoor side upper member 111 and the indoor side upper member 112 with the outdoor side upper member 111 and the indoor side upper member 112 formed of a metal material such as aluminum. A member 113 and a resin upper member 114 made of resin and disposed and fixed on the inner periphery of the lower surface of the indoor upper member 112 are provided.
An outer guide rail (guide rail) 111 a for guiding the outer shutter 3 hangs down on the lower surface of the outdoor upper member 111 near the outdoor, and an inner shutter on the lower surface of the outdoor end of the indoor upper member 112. An inner guide rail (guide rail) 112 a for guiding 2 is suspended.

The resin upper member 114 includes a chamber outer wall 114a covering the indoor surface of the inner guide rail 112a of the indoor upper member 112, an upper wall 114b covering the lower surface of the indoor upper member 112, and an indoor end of the upper wall 114b. It consists of an indoor wall portion 114c that descends further downward, and a forehead portion 114d that extends from the lower end of the indoor wall portion 114c to the indoor side.
Then, in a state where the upper wall portion 114b of the resin upper member 114 is engaged with the indoor upper member 112, by fixing at a plurality of locations from the inner peripheral side with a screw g or the like penetrating both members, It is attached.

An inter-rail upper cover 51 made of resin is disposed between the outer guide rail 111a and the inner guide rail 112a to cover the lower surface of the outdoor upper member 111.
The rail-to-rail upper cover 51 is configured as a substantially flat long member having a length approximately half that of the upper frame 11, and the air stop plate installed at least above the joining portion of the upper frame 11. It is disposed between the d and the left vertical frame 14 and prevents the heat from being transmitted to the room from the lower surface of the outdoor-side upper member 111 which is exposed to the room when the inner and outer shutters 2 and 3 are closed. .

  The lower surface of the inter-rail upper cover 51 on the indoor side of the outer guide rail 111a and the lower surface of the upper wall portion 114b of the resin upper member 114 on the indoor side of the inner guide rail 112a The projecting portions 71 and 72 are suspended so as to be inclined toward the indoor side as they go downward, and are provided so as to approach or abut on the upper surfaces of the outer and inner rattles 2 and 3.

  The protrusions 71 and 72 are formed of a soft material so that they can be deformed and restored. Therefore, when the inner and outer barriers 2 and 3 are erected with a kendon, the fins 71 and 72 are easily deformed. It is possible to do the erecting work smoothly. In addition, after construction, the lower end of the projecting portions 71 and 72 can be restored to the original shape, and the lower ends of the projecting portions 71 and 72 can be brought close to or in contact with the upper surface of the outer shutter 2 or 3. After the completion of the erection, the projections 71 and 72 can block at least a part of the interval while securing a sufficient interval to allow the shoji to be erected between the upper surface and the lower surface.

  Thereby, the space between the inner peripheral surface and the outer surface of the upper frame 11 on the indoor side of the outer and inner guide rails 111a and 112a and the upper surface of the inner shoji 2 is separated from the indoor space, and the outer and inner guide rails 111a and 112a The air to which cold heat has been transferred from the side of the room suppresses convection flowing into the room through the space.

  Furthermore, since the projecting portions 71 and 72 are suspended while being inclined so as to be closer to the room side as they go downward, deformation during shoring of the shoji is uniformly performed over the entire length in the longitudinal direction. Can be prevented, and good proximity or contact can be maintained at the time of restoration.

  The fins 71 and 72 may be formed integrally as a soft resin on the resin cover of the rail upper cover 51 or the resin upper member 114 as soft resin, but only the fins 71 and 72 may be formed. Can be separately formed and attached to the inter-rail upper cover 51 or the resin upper member 114 by an engagement means or the like. Furthermore, the protruding portions 71 and 72 may be hard fin members supported so as to swing by a semicircular hollow portion formed by a soft material, a hinge portion or the like, and may be provided on the upper surface of the shoji. . In addition, it is not particularly limited as long as it is a member that is deformed at the time of erecting shoji and restored after the erecting is completed.

A projecting portion 81 is provided on the outer side of the lower end of the indoor wall portion 114c of the resin upper member 114 so as to be close to the indoor side surface of the upper collar 21 of the inner scissor 2. The projecting portion 81 is formed as a fin piece integrally formed with the resin upper member 114, and the space on the upper surface of the inner scissor 2 is separated from the indoor space to fix the inner guide rail 112a and the resin upper member 114. The air to which the cold heat is transmitted via the screw g is prevented from flowing between the upper surface of the inner seal 2 and the lower surface of the upper frame 11 and flowing into the room.
Since the space of the upper surface of the inner scissor 2 is separated from the indoor space by the projecting portion 81 and the convection of air is suppressed, not only cold heat transmitted by the inner guide rail 112a but also transmission by the screw g fixing the resin upper member 114 Cold heat can be suppressed, and a better heat insulation performance can be obtained. Furthermore, by forming the protruding portion 72 and the protruding portion 81 in the shape of fins on the resin upper member 114, a space surrounded by the resin material can be formed by the resin portion of the frame and the shoji and the protruding portions 72 and 81. , Heat insulation can be improved.

The lower frame 12 is a connection made of a heat insulating material such as a resin that connects the outdoor lower member 121 and the indoor lower member 122 made of a metal material such as aluminum, and the outdoor lower member 121 and the indoor lower member 122. It is comprised by the member 123 and the resin lower member 124 made from resin arrange | positioned and fixed to the upper surface inner periphery of the indoor side lower member 122. As shown in FIG.
An outer guide rail 121a for guiding an outer shoji is provided on the upper surface of the outdoor lower member 121, and an inner guide rail 122a for guiding an inner shoji from an outer end of the indoor lower member 122 is provided. .
And between the outer guide rail 121a and the inner guide rail 122a, the inter-rail lower cover 52 made of resin that covers the upper surface of the outdoor lower member 121 is disposed.

  The inter-rail lower cover 52 is configured as a substantially flat long member having a length approximately half that of the lower frame 12, and the meeting block disposed at least below the meeting portion of the lower frame 12. It is disposed between the left vertical frame 14 (not shown) and suppresses the transfer of cold heat to the room from the upper surface of the outdoor lower member 121 exposed to the room when the inner and outer shutters 2 and 3 are closed. doing.

  The resin lower member 124 includes a bottom wall portion 124a covering the upper surface of the indoor side lower member 122, an indoor wall portion 124b extending upward from the indoor side end of the bottom wall portion 124a, and an indoor side from the upper end of the indoor wall portion 124b. A protrusion 82 is provided on the outer side of the upper end of the indoor wall 124b of the resin lower member 124 so as to be close to the indoor side surface of the lower iron 22 of the inner scissor 2. The space between the inner peripheral surface of the lower frame 12 and the upper surface of the inner shutter 2 on the indoor side of the inner guide rail 122a is separated from the indoor space, and air to which cold heat is transmitted from the indoor side surface of the inner guide rail 122a is introduced into the room. It suppresses the convection.

  The right vertical frame 13 is formed of a metal material such as aluminum, and is provided with a main body member 131 provided with a pull-in piece 131a on the inner circumferential surface with which a pull-in block f disposed at the door tip 23 of the inner shutter 2 abuts. The resin right member 132 is disposed and fixed to the inner peripheral surface of the main body member 131 on the indoor side.

  The resin right member 132 includes an attachment portion 132a engaged with the main body member 131, a right vertical wall portion 132b extending inward from the indoor side end of the attachment portion 132a, and an inner peripheral end of the right vertical wall portion 132b. An opening of a building is constituted by a forehead portion 132c extending to the indoor side, and in a state where the mounting portion 132a is engaged with the main body member 131, a plurality of places are fixed from the inner peripheral side with a screw g passing through both. It is firmly attached to the part.

  Further, a projecting portion 83 is provided to be closer to the indoor side surface of the door tip 23 of the inner shutter 2 from the outer peripheral side surface of the right vertical wall portion 132b of the resin right member 132. The space between the surface and the inner peripheral surface of the right vertical frame 13 is separated from the indoor space, thereby suppressing the convection of air passing through the space between the front end surface of the inner shutter 2 and the inner peripheral surface of the right vertical frame 13 .

  The left vertical frame 14 is formed of a metal material such as aluminum, and is provided with a main body member 141 provided with a pull-in piece 141a on the inner circumferential surface with which a pull-in block f disposed on the door tip 34 of the outer shutter 3 abuts. It is comprised by the resin left member 142 arrange | positioned and fixed to the indoor side inner peripheral surface of the main body member 141. As shown in FIG.

  The resin left member 142 is constituted by a main body portion 142a engaged with the main body member 141 and covering the inner peripheral surface of the left vertical frame 14 and a forehead portion 142b extending to the indoor side of the main body portion 142a. A projecting portion 84 is provided to be closer to the indoor side surface of the door tip 34 of the outer shell 3 than the inner peripheral side end of the chamber outer surface of the main body portion 142a. The front end surface of the outer shell 3 and the inner periphery of the left vertical frame 14 The space between the surfaces is separated from the room space, and the air to which cold heat is transferred suppresses the convection flowing through the space into the room.

  In the above embodiment, the protrusions 81 to 84 are shaped like fins as shown in FIG. 4, but for example, as shown in FIG. 5, they are formed as semicircular hollow portions. It is also possible to suppress the convection of air and improve the heat insulation by the air in the hollow portion by forming the projecting portion as a hollow structure.

The main body portion 142a of the resin left member 142 is provided with mounting recesses 142c that open in the inner circumferential direction at a plurality of locations in the vertical direction, and the bottom wall of the mounting recess 142c is superposed on the main body member 141 of the left vertical frame 14 Then, it is being fixed to the opening of a building by being fixed to multiple places from the inner peripheral side with the screw g etc. which penetrate both.
The mounting recess 142 c may be configured as a groove continuous in the longitudinal direction (vertical direction) of the resin left member 142.

  A plurality of deformable fin-shaped protrusions 91 and 91 extending toward the center (center line) of the opening are provided on the opening periphery of the mounting recess 142 c, and the resin left member 142 is a main body member of the left vertical frame 14. When fixed with screws g or the like in a state of being polymerized in 141, it is suppressed that the cold heat transmitted to the screws g or the like is transferred to the room through the main body member 141 of the left vertical frame 14 made of aluminum or the like. In addition, the deterioration of the design due to the head of the screw g or the like being exposed to the room is suppressed.

The above-mentioned protruding portions 91, 91 in the shape of fins are formed into deformable fins, so that the protruding portions 91, 91 in the shape of fins can be deformed and fixed at the time of fixing operation with a screw g or the like. By restoring, it is possible to suppress the decrease in the heat insulating performance due to the convection of the air in the mounting recess 142c.
In addition, it is possible to suppress the decrease in design while suppressing the decrease in the heat insulation performance by covering the mounting recess 142c with the eye plate instead of providing the protruding portions 91, 91 in the form of fins.

(Structure of Shoji)
The construction of the shoji will be described using the inner shoji 2.
The upper collar 21 of the inner seal 2 is configured as a compound collar consisting of an upper collar exterior side 211 formed of a metal material such as aluminum and an upper collar interior side 212 formed of a resin or the like. A guide groove guided by an inner guide rail 112 a formed in the upper frame 11 is formed on the outer periphery of the guide 21.

  A tight material in contact with or in proximity to the inner guide rail 112a is attached to the outer upper end and the indoor upper end of the guide groove, so that the space between the upper frame 11 and the upper rod 21 is airtight. Outside air is prevented from directly entering the room through the space between the upper surface and the lower surface of the upper frame 11.

  The lower shell 22 of the inner seal 2 is configured as a composite rod consisting of the lower shell outdoor side portion 221 formed of a metal material such as aluminum and the lower rattan indoor side portion 222 formed of a resin or the like. A guide groove is formed on the outer periphery of the wheel 22, and a wheel a traveling on the inner guide rail 122a formed on the lower frame 12 is disposed in the guide groove.

  A tight material in contact with the inner guide rail 122a is attached to the lower end of the outer side of the guide groove, so that the space between the lower frame 12 and the lower frame 22 is airtight, and the lower surface of the lower frame 22 and the upper surface of the lower frame 12 It prevents the outside air from entering the room directly through the space.

The front end 23 of the inner scissor 2 is configured as a composite side that includes the side 231 outside the door and the side 232 inside the door 232 made of resin or the like. .
A pull block f is provided on the outer periphery of the door tip 23 so as to be in contact with the pull piece 131a formed on the right vertical frame 13. A tight material that is in contact with the pull-in piece 131a at the time of closing is attached, and the space between the right vertical frame 13 and the door tip 23 is airtight, and the outer peripheral surface of the door tip 23 and the inner peripheral surface of the right vertical frame It prevents the outside air from entering the room directly through the space.

The joint rod 24 of the inner seal 2 is made up of a side 241 outside the joint chamber made of a metal material such as aluminum and a side 242 inside the joint chamber made of resin etc. The interior side and outer peripheral surface 242 of the side 241 outside the joint door is integrated so as to cover the surface exposed to the room when the shoji is closed, and is configured as a composite rod.
And a piece part is formed in the approximate center of the outdoor side of the combination side outdoor part side 241, and cooperates with the piece part formed in the indoor side of combination side 33 of the outer shoji 3 and constitutes smoke return c doing. In addition, a protrusion 85 is provided on the outdoor side end of the outer peripheral surface portion of the combination side portion 242 so as to be close to the side surface of the combination piece 33 of the outer shoji 3. The space between the joint rod 33 and the joint rod 24 of the inner shoji 2 is separated from the indoor space to suppress air convection.

The outer case 3 is different from the inner case 2 in that the entire joint 33 is made of a metal material such as aluminum and is not configured as a compound case. And the piece side which comprises smoke return c on the indoor side of the union 33 is provided. Furthermore, a tight material is attached to the outer peripheral end of the indoor side so as to abut on the joining collar 24 of the inner shoji 2, and between the joining collar 33 of the outer shoji 3 and the union outer 24 of the inner shoji 2. It prevents the outside air from entering the room directly through the
The other configuration of the outer case 3 is substantially the same as that of the inner case 2, so the description will be omitted.

Then, in the present embodiment, the inner seal 2 is configured as a hosiery gushiko in which the end portions of the upper and lower notches 21 and 22 are inserted into the groove portion b of the inner periphery of the toe guard 23.
As can be seen in FIG. 6, the predicted size of the upper and lower eyelids 21 and 22 is smaller than the expected size of the head-end eyelid 23 by the thickness dimension p. That is, the indoor side surface of the toe hook 23 is on the indoor side by the dimension p of thickness rather than the indoor side surface of the upper and lower hooks 21 and 22.
Therefore, in the case where the inner peripheral opening of the frame 1 has a constant width over the four circumferences, the protrusions 81 and 82 provided on the outdoor side surfaces of the indoor wall portions 114c and 124b of the upper and lower frames 11 and 12 and The distance between the upper side and the lower side with the indoor side surface of the upper and lower frames 21 and 22 is the distance between the protrusion 83 provided on the outdoor side of the right vertical wall 132b of the right vertical frame 13 and the indoor side surface of the door front side 23 It is increased by the thickness p of 23.
In such a case, with respect to the right vertical frame 13 (door front frame), the protrusion 83 of the right vertical wall 132b is formed by a small fin or the protrusion 83 is not provided in the right vertical wall 132b. The distance between the projecting portion 83 of the right vertical frame 13 and the indoor side surface of the door tip 23 and the protruding portions of the upper and lower frames 11, 12 by bringing the right vertical wall portion 132b directly close to the indoor side surface of the door tip 23 It is possible to make the distance between 81 and 82 and the inner side surface of the upper and lower frames 21 and 22 approximately the same.
In addition, it is preferable to appropriately select appropriate projecting portions in accordance with the distance between the respective portions, such as forming the projecting portions 81 and 82 of the upper and lower frames 11 and 12 to be larger by hollow portions.

Furthermore, when the upper and lower end caps 6 are attached to the upper end or lower end of the door tip collar 23 and the joint rod 24 to hold the corner of the inner shutter 2, the upper end or lower end of the door tip collar 23 and the joint rod 24 For example, as shown in FIG. 6, by forming the vertical surface 61 at the same position as the indoor side surface of the upper and lower frames 21 and 22 in the expected direction, the upper and lower frames 21 are provided. , 22 in the left and right direction, and the spaces between the upper and lower ridges 21 and 22 are the same over the entire length of the projecting portions 81 and 82. Is preferred.
In addition, on the side of the joint rod 24, the projections 81 and 82 on the side of the outer shell are appropriately cut away with a cutter or the like, so that the projection portions 81 and 82 and the indoor side surfaces of the upper and lower end caps 6 of the joint rod 24 are obtained. Can be made substantially the same, in which case it is not necessary to form vertical planes on the upper and lower end caps 6 of the joint 24.

The heat insulation performance of the heat insulation sash of the embodiment of the present invention is verified.
As Example 1, a heat insulating sash provided with a fin-like protrusion 71 on the lower surface of the inter-rail upper cover 51, and as Example 2, furthermore, the resin upper member 114, the resin lower member 124, and the resin right member 132 respectively protrude. The heat insulating sash provided with the portions 81, 82, 83 is used, and the above-described protruding portion 71 and the protruding portions 81, 82, 83 are not provided as a comparative example.
The heat transmission coefficients of Examples 1 and 2 of the present invention and Comparative Examples are shown in Table 1 below.
The heat transmission coefficient is used as one of the criteria for evaluating the heat insulation performance of sash etc. When the temperature difference between inside and outside of sash etc. is 1 degree, the heat quantity passing 1 m ² per hour is It is expressed in watts, and the smaller the number, the better the heat insulation.
In the table, LE3-G16-3 refers to Low-E 3 mm glass + intermediate gas layer 16 mm + float clear 3 mm glass double layer glass, and LE3-A16-3 refers to Low-E 3 mm glass + intermediate air layer 16 Milli + float clear 3 mm glass double glass, 3-G16-3 shows float glass 3 mm glass + medium air layer 10 mm + float clear 3 mm glass double glass.

  From Table 1, also in the sash using any double glazing, by providing the protruding portion 71 in the form of fins on the lower surface of the inter-rail upper cover 51, a comparative example in which no protruding portion is provided on any side of the window frame The heat transmission coefficient is improved by 0.04 to 0.05 points, and the projections 81, 82 and 83 are provided on the resin upper member 114, the resin lower member 124 and the resin right member 132, respectively. It is improved by 0.04 to 0.05 points, and it can be seen that the heat insulation of the sash is improved.

As described above, in the embodiment of the present invention, the inside of the frame 1 is formed by the projecting portions 81, 82, 83 provided on the inner peripheral end of the upper, lower frames 11, 12 and the right vertical frame 13 of the frame 1. It is possible to separate the space between the circumferential surface and the outer circumferential surface of the inner shoji 2 from the indoor space, and to suppress the convection of the air to which cold heat is transmitted through the space to the indoor space, Air to which cold heat is transmitted from the indoor side surface of the guide rails 112a and 122a, and air to which cold heat is transmitted from the head of the screw g for fixing the resin frame member (the resin upper member 114 and the resin right member 132) It is possible to suppress the convection flowing through the chamber.
In addition, the air to which the cold heat is transmitted in the inner peripheral surface of the left vertical frame 14 flows into the room by the protruding portion 84 provided on the left vertical frame 14 of the frame 1 and the protruding portions 91 and 91 in a fin shape. It can be deterred.
Moreover, since the protrusions 81, 82, 83, 84 provided on the frame 1 are in proximity to the side surfaces of the casing in a non-contact manner, the protrusions 81, 82, 83, 84 are present when the shoji is opened and closed. The smooth opening and closing of the shoji can be maintained without contacting the inside and the outside shoji 2 and 3.

Furthermore, in the present embodiment, particularly in the upper frame portion where a large space needs to be secured, the resin disposed between the lower surface of the resin upper member 114 of the upper frame 11 and the guide rails of the upper frame 11 On the lower surface of the inter-rail upper cover 51, projecting portions 71 and 72 are formed to hang down.
Each of the above-mentioned projecting portions 71, 72, 81 to 84, 91 alone can provide the effect of improving the thermal insulation performance if provided alone, but in particular, the upper and lower frames 11, 12 of the frame 1 and By the protrusions 81, 82, 83 provided on the inner peripheral end of the right vertical frame 13, the protrusion 84 provided on the inner peripheral part of the left vertical frame 14, and the protrusion 71 formed on the lower surface of the upper frame 11. A space separated from the indoor space can be formed over substantially four circumferences of the sash, and the transfer of cold heat by air convection can be prevented more efficiently.

  In addition, it is preferable that the tip end of each protrusion and either the upper frame or the upper ridge abut or be about 2 mm or less, but if it is in proximity to be about 10 mm or less, the convection is suppressed to some extent Can improve the heat insulation performance.

DESCRIPTION OF SYMBOLS 1 Window frame 11 Upper frame 111a Outer guide rail 111b Inner guide rail 12 Lower frame 13 Right vertical frame 14 Left vertical frame 2 Inner shingles 21 Upper door 22 Lower door 23 Door front door 24 Joining row 3 Outer cover plate 31 Upper wheel 32 lower框 33 dishes 框 34 houses

51 rail upper cover 52 rail lower cover

71, 72 protrusion 81 to 85 protrusion 91 protrusion

Claims (1)

A frame body formed of four rounds of upper and lower frames and left and right vertical frames and provided with guide rails,
The panel body is mounted on the inner circumference of a frame that is composed of upper and lower ridges and left and right ridges, and has a sliding door that slides along a guide rail of the frame to open and close the window.
The frame of at least one side of the frame consists of a metal member and a resin member,
A weir of at least one side of the casing consists of a metal member and a resin member,
A fin-shaped projecting portion projecting toward the indoor side surface of the casing is provided at the inner peripheral end of the indoor side of the resin member of the frame of at least one side of the frame, and the projecting portion is a resin member An insulating sash characterized in that it is close to the indoor side of the room without contact.

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