JP2006316423A - Heat insulating sheet for window structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an easily and inexpensively installed heat insulating sheet for a window structure by which the heat insulating property of the window structure having a poor heat insulating property is improved, and the cooling/heating efficiency is improved. <P>SOLUTION: The heat insulating sheet 1 for the window structure comprises a main air chamber 14 formed between a plurality of sheet materials 10, a frame-like air chamber 12 formed in a manner of surrounding a periphery of the sheet materials 10 to be expandable in an outward direction, and a valve 28 by which the air is freely injected into and taken out from each of the main air chamber 14 and the frame-like air chamber 12 which are communicated to each other. The heat insulation sheet 1 may be freely rolled up and out. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a heat insulating sheet for a window structure.

  Conventionally, the improvement of the heat insulation of a building is calculated | required, and the heat insulation excellent in the use of a heat insulating material, the setting of heat insulation space, etc. is implement | achieved about the wall surface or the floor surface. On the other hand, single glass and single sash are widely used for the window structure of buildings, but it is difficult to obtain sufficient heat insulation due to restrictions on daylighting etc., and the heat insulation of the window structure is low. As a result, the thermal insulation of the entire building is also low.

  As shown in FIG. 6, in a conventional window structure 50 using single glass and a single sash, a frame 52 is fitted into an inner side 74 of a window structure opening 72 formed in a wall 70 of a building. Two window main bodies 54 are attached to 52 so as to be openable and closable. The frame 52 has an aluminum outer frame 52U, a lower frame 52L, and left and right vertical frames 52S formed in a quadrilateral shape, and the upper frame 52U and the lower frame 52L have rails (not shown). It is attached. The window main body 54 has a structure in which a single glass is sandwiched and fixed as a window glass 58 in a frame made of a quadruple frame made of an aluminum upper wall 56U, a lower wall 56L, and left and right vertical walls 56S. A door (not shown) for sliding the window main body 54 on the rail is attached to the rod 56L.

In the portion of the window glass 58 that occupies a large area in the window structure 50, only one single glass separates the indoor air from the outside air, and from the metal member having a small specific heat around the window glass 58. Since the single sash frame 52 and the wall 56 that separates the indoor air from the outside air, heat easily moves between the indoor and the outdoor. For example, in the summer, the heat of the outside air is easily transmitted to the indoor air through the frame 52, the wall 56, and the window glass 58, and the cooling efficiency is deteriorated. The efficiency is poor, and the room temperature cannot be maintained efficiently.
In order to improve the heat insulation of such a window structure, there is a double window structure such as a double glass or a double sash (see Patent Document 1).
JP 2004-308347 A

However, since most of the existing buildings have the window structure using the single glass or single sash described above, a renovation work is required to obtain a double window structure. This renovation work was expensive and time consuming, and there was a problem that the renovation work could not be easily done in ordinary households. In addition, the double window structure is expensive compared to the conventional window structure, and there is a problem that it is difficult to use the double window structure in a temporary building from the viewpoint of cost efficiency. Furthermore, in recent years, reduction of fuel consumption has been widely demanded, and improvement of air conditioning efficiency is required even in buildings that do not have a double window structure.
The present invention has been made in order to eliminate the above-described problems of the prior art, and the object of the present invention is to improve the heat insulation of the window structure made of single glass or single sash, and in the building. The purpose of the present invention is to provide a heat insulating sheet for a window structure that can improve the efficiency of air conditioning and heating, can perform installation work easily, and has low installation costs.

  The present invention adopts the following configuration in order to solve the problem. In the invention of claim 1, a sheet material is stacked on a plurality of layers, the sheet materials of each layer are partially connected to each other to form a main air chamber, and the periphery of the sheet material on which the main air chamber is formed A frame-like air chamber that surrounds and expands and contracts outward is formed, and the main air chamber and the frame-shaped air chamber are connected to each other to form a heat insulating sheet, and the heat insulating sheet includes the main air chamber and the frame-shaped air chamber. It is a heat insulating sheet for a window structure that is provided with a stopper that can freely inject and withdraw air from an air chamber, and that can be wound up and unwound as a whole.

Air has a large specific heat and is excellent as a heat insulating material, and an efficient heat insulating layer can be formed by confining air in the main air chamber and the frame-shaped air chamber. When the entire surface of the window structure is covered with the main air chamber and the frame-shaped air chamber, the heat transfer rate between the indoor and the outdoor through the window structure becomes small.
In addition, the frame-shaped air chamber of the heat insulating sheet for window structure that is inflated with air can expand and contract outward, so that the outer shape of the frame-shaped air chamber is the shape inside the window structure opening on the wall to which the window structure is attached It can be deformed according to the above and can be brought into close contact with the inside of the opening. In addition, the bulged frame-shaped air chamber can be deformed according to the shape of the frame of the window structure and brought into close contact with the front surface of the frame. Therefore, it is possible to cover the entire surface of the window structure with the heat insulating layer.
Further, since the heat insulating sheet for window structure can be taken up in a state where air is drawn from the main air chamber and the frame-like air chamber, air is taken out from each air chamber through a plug when not in use, and is wound and stored. can do.

Since this invention is a heat insulating sheet for window structures as described above, it has the following effects.
That is, air with a large specific heat is enclosed in a frame-like air chamber and a plurality of main air chambers to form an air layer with a high heat insulating effect, and each of these air chambers is located between the window structure and the indoor air, When air-conditioning is performed indoors, indoor air is less affected by the temperature of outdoor air, and the efficiency of air-conditioning is improved.

  Moreover, when using the heat insulating sheet for window structure, it is only necessary to hang the heat insulating sheet for window structure on the front of the window structure. And since the shape of the frame-shaped air chamber which can be expanded-contracted to an outer side can be deform | transformed corresponding to a window structure, it is easy to mount | wear so that a window structure may be covered with the heat insulating sheet for window structures. On the other hand, when the heat insulating sheet for window structure is not used, it is sufficient to wind it up and the handling such as storage is easy.

Furthermore, since the structure of the heat insulating sheet for window structure is simple and is made of an inexpensive member, the price of the product is reduced and the installation cost is also reduced.
In other words, the heat insulation of the window structure made of single glass or single sash can be improved, the air conditioning efficiency in the building can be improved, the installation work can be performed easily, and the installation cost is low. There is an effect that a heat insulating sheet can be provided.

The best mode for carrying out the present invention will be described with reference to the drawings.
First, the configuration of the present invention will be described with reference to FIGS.
A window structure 50 made of a single sash and single glass having the same configuration as that of the prior art is formed on the wall 70 of the building.
Further, as shown in FIG. 1, a storage portion 30 is installed on the inner side 74 of the window structure opening portion and along the front surface of the upper frame 52U on the indoor side so as to wind up and retract the window structure heat insulating sheet 1 to be described later. Yes. The storage unit 30 has a rod-shaped central shaft 32 extending in the left-right direction. A gear 34 is attached to the end of the central shaft 32, and a loop-shaped chain 36 is hung on the gear 34. The chain 36 hangs down along the vertical frame 52S in the indoor 80, and the center shaft 32 is configured to rotate via the gear 34 when the chain 36 is pulled.

  Further, the window structure heat insulating sheet 1 having an approximately rectangular outer shape is suspended from the storage portion 30 so that one side of the rectangle is fixed to the central shaft 32 and covers the entire surface of the window structure 50. The length and width of the heat insulating sheet for window structure 1 have dimensions sufficient to cover the entire surface of the window structure 50. The heat insulating sheet 1 for window structure has two sheet materials 10 which are flexible and extendable and stretched in two layers, and the peripheral portions of the two sheet materials 10 have an adhesive with a frame core material 16 in between. Are joined together to form a bag. The sheet material 10 is preferably a synthetic resin material. Thus, the frame core material 16 connects the two sheet materials 10 to each other from the inside. A frame-shaped air chamber 12 is formed outside the frame core material 16 along the peripheral edge of the window structure heat insulating sheet 1. The frame core material 16 is formed of a flexible synthetic resin material. As shown in FIGS. 3 and 4, a plurality of frame core material through holes 20 are formed in the frame core material 16, and the frame core material through holes are formed. The frame-like air chamber 14 communicates with the main air chamber 12 formed by the two sheets 10 by 20.

A lattice-shaped main core material 18 is formed inside the frame core material 16. Similar to the frame core material 16, the main core material 18 connects the two sheet materials 10 to each other from the inside, and the end of the main core material 18 is connected to the inside of the frame core material 16. A plurality of main air chambers 14 are formed inside the frame core 16 and are divided into quadrangles by the main core 18 and the frame core 16. The main core material 18 is made of the same material as the frame core material 16, and the main core material through hole 22 is formed through the main core material 18, and the adjacent main air chambers 14 communicate with each other through the main core material through hole 22. . Note that the distance between the upper and lower or left and right main core members 18 and the distance between the frame core member 16 and the peripheral edge portion of the heat insulating sheet 1 for window structure are such that air is supplied to the main air chamber 14 and the frame-shaped air chamber 12 as described later. It is desirable that the main air chamber 14 and the frame-shaped air chamber 12 have a distance of about 10 mm to 15 mm in a state where they are inflated by injection.
In addition, a plug 28 is provided at the lower right corner of the frame-like air chamber 12 and facing the indoor 80.

The present invention is configured as described above, and the operation thereof will be described next.
First, when the heat insulating sheet for window structure 1 is used, the heat insulating sheet for window structure 1 is pulled out from the storage unit 30 and hung, and the entire surface of the window structure 50 on the indoor 80 side is covered. By pulling the chain 36 and rotating the central shaft 32, the window structure heat insulating sheet 1 is wound or pulled out from the central shaft 32, and the length of the window structure heat insulating sheet 1 hanging from the storage unit 30 is adjusted. Since the window structure heat insulating sheet 1 is made of a flexible member, the window structure heat insulating sheet 1 that has been rolled up can be easily hung flat along the window structure 50.

Next, the plug 28 at the lower right corner of the heat insulating sheet 1 for window structure hanging from the front surface of the window structure 50 is opened, and air is injected into the heat insulating sheet 1 for window structure. The air is injected by a person blowing in through his mouth or using a pump (not shown). When air is injected from the plug 28, the air enters and expands into the frame-shaped air chamber 12 in which the plug 28 is provided, and air also enters each main air chamber 14 through the frame core material through hole 20 and the main core material through hole 22. Swell. When air is injected until the thickness of the frame-like air chamber 12 and each main air chamber 14 becomes about 10 mm to 15 mm, the stopper 28 is closed.
When air enters the inside of the heat insulating sheet for window structure 1, the frame-shaped air chamber 12 and the main air chamber 14 contain air having a large specific heat, and the enclosed air is inside the heat insulating sheet for window structure 1. Remains almost stationary with little circulation.

  Next, the window structure heat insulating sheet 1 in which air enters the frame air chamber 12 and the main air chambers 14 is attached to the window structure opening inner side 74. Since the frame-shaped air chamber 12 is made of the sheet material 10 that can be expanded and contracted in the outer direction only by having the frame core material 16 on the inner side, the shape of the periphery of the heat insulating sheet 1 for window structure with the frame-shaped air chamber 12 is defined as a window. The window structure heat insulating sheet 1 can be accommodated in the window structure opening inner side 74 so as to be adapted to the shape of the structure opening inner side 74. If this fit is poor, air is taken in and out of the plug 28 to change the swelling state of the frame-like air chamber 12, and the contact state between the frame-like air chamber 12 and the inner side 74 of the window structure opening 72 is adjusted. it can.

  When the window structure heat insulating sheet 1 is attached so as to cover the entire surface of the window structure 50 on the indoor 80 side in this way, the window body 54 and the window structure heat insulating sheet 1 are not in close contact with each other and the air layer 84. Is formed (see FIG. 2). The air layer 84 is shielded from the air in the indoor 80 by the window structure heat insulating sheet 1, and the air in the air layer 84 hardly moves and remains stationary.

  Therefore, the air layer 84 and the main air chamber 14 exist between the window main body 54 and the air in the indoor 80. A frame-shaped air chamber 12 exists between the frame 52 and the air in the indoor 80. That is, between the outdoor 82 air and the indoor 80 air, the window structure 50, partially the air layer 84, and the air chambers 12 and 14 are arranged in order from the outdoor 82 side. Eighty airs are no longer adjacent only through the window structure 50. Since the air in the air layer 84 and the air chambers 12 and 14 is a heat insulating material having a large specific heat and is almost stationary without circulating convection, heat transfer is performed between the air in the outdoor 82 and the air in the indoor 80. The speed is very slow.

  Further, when the heat insulating sheet for window structure 1 is not used, first, the air in the air chambers 12 and 14 is discharged from the plug 28 and crushed flat. The window structure 50 can be exposed to the indoor 80 by pulling the chain 36 and rotating the central shaft 32 to wind up and store the heat insulating sheet 1 for window structure. Since the window structure heat insulating sheet 1 is made of a flexible member, it can be easily wound around the central axis 32.

  In the present embodiment, a plurality of main air chambers 14 are formed of the lattice-shaped main core material 18. However, as shown in FIG. It is also possible to form only one main air chamber 14 by forming one or a plurality of scattered stop portions 24 inside the letter shape and stopping the two sheet members 10. The stopper 24 can be formed by directly bonding the two sheet materials 10 or by sandwiching another member between the two sheet materials 10.

Further, although the main core material 18 is arranged in a lattice shape, it is possible to form the main air chambers 14 having a plurality of horizontally long or vertically long bodies by arranging the main core material 18 only in the horizontal direction or the vertical direction.
Further, the main air chamber 14 is formed by the main core material 18, and one or a plurality of scattered stop portions 24 can be formed inside the main air chamber 14 to stop the two sheet materials 10. It is.

Although the window main body 54 is openable and closable, it is needless to say that the heat insulating sheet for window structure 1 can be used for a fitting window structure, and even if the frame 52 and the rod 56 are made of metal other than aluminum, wood, etc. good.
In addition, the heat insulating sheet 1 for window structure is formed by superimposing two sheet materials 10, but the heat insulating sheet 1 for window structure can be formed by folding one sheet material into two. Of course.

Moreover, although the peripheral part of the two sheet | seat materials 10 decided to adhere | attach with an adhesive agent, methods, such as heat welding, can also be used.
Of course, the thickness when air is injected into the main air chamber 14 and the frame-shaped air chamber 12 is not limited to 10 to 15 mm.
Further, although the main core material 18 and the frame core material 16 are formed of a flexible synthetic resin material, they can be formed of a metal material having elasticity instead.

  In addition, when the wall 80 side surface of the wall 70 and the frame 52 are almost on the same plane and it is difficult to fit the window structure heat insulating sheet 1 in the window structure opening 74, a hook or the like is used for the window structure. While forming in the lower part of the heat insulation sheet 1, the latching part engaged with this hook can be attached to the lower frame 52L of the window structure 50, and the swelled heat insulation sheet 1 for window structures can be made to contact | adhere to the frame 52 reliably.

It is a front view of the heat insulation sheet for window structures concerning an embodiment of the invention. FIG. 2 is a cross-sectional view taken along line AA in FIG. 1. It is a perspective partial view of a frame core material. It is a BB line cross-sectional view of FIG. It is a front view of the heat insulation sheet for window structures concerning a modification. It is a front view of the conventional window structure.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Heat insulation sheet for window structures 10 Sheet material 12 Frame-shaped air chamber 14 Main air chamber 16 Frame core material 18 Main core material 20 Frame core material through-hole 22 Main core material through-hole 24 Stop part 28 Plug 30 Storage part 32 Center shaft 34 Gear 36 Chain 50 Window structure 52 Frame 54 Window body 56 ５８ 58 Window glass 70 Wall 72 Window structure opening 74 Window structure opening inside 80 Indoor 82 Outdoor 84 Air layer

Claims (1)

A sheet material is stacked on a plurality of layers, and a sheet material of each layer is partially connected to each other to form a main air chamber,
Forming a frame-like air chamber that surrounds the periphery of the sheet material on which the main air chamber is formed and can be expanded and contracted in the outer direction;
The main air chamber and the frame-shaped air chamber communicate with each other to form a heat insulating sheet,
The said heat insulation sheet | seat is equipped with the stopper which can inject | pour and extract air to the said main air chamber and the said frame-shaped air chamber freely, and was comprised so that winding-up and unwinding was possible as a whole, The heat insulation sheet for window structures characterized by the above-mentioned.

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