JP2018003569A - Energy saving method for window opening - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for preventing dew condensation on the indoor side of a window opening and for saving energy at heating and cooling by making a substantially closing space on the outdoor side of a window opening with a window cover to be easily installed later in a window stile or an exterior wall surface on the outdoor side of the window opening so as to use the space as a heat insulation layer of air.SOLUTION: A cover sheet 4 that increases heat insulation effect by covering a window opening on the outdoor side and making a substantially shielded air space is installed, for the purpose of saving energy in a window opening in a room to be heated and cooled by using energy. A curtain box which is simple, light-weight can be installed later for closing the space between the wall surface of a curtain without a curtain box and the curtain on the indoor side from above. A closing wall can close the space between a wall surface and left and right side faces of the curtain. By installing the curtain box and the closing wall, convection of air between a window-side space between a window and the curtain, and inside the room can be blocked effectively.SELECTED DRAWING: Figure 1

Description

  The purpose of this invention is to save energy required for air conditioning when heating and cooling a room with a window opening using energy. Energy savings with a simple window cover that can be used, and the other is the indoor side of the window opening, which closes the gap between the simple and lightweight curtain box that can be additionally installed on the curtain without the curtain box, and the wall that can be formed on the side of the curtain The present invention relates to a device that contributes to energy saving in combination with a wall and a method for using the device.

  Because there is a temperature difference between the outside air temperature and the room temperature when cooling and heating the room, hot air enters the room from the high temperature outside air through the window during cooling, and the room cools from the low temperature outside air through the window during heating. It is well known that this heat of entry can be reduced by closing the curtain. However, it is not well known that the air in the window space between the window and the curtain enters the room because the room air circulates through the gap between the wall that is open on the top, bottom, left, and right when the curtain is closed. Absent.

  This circulation of indoor air is called convection. During cooling, the air in the window space between the indoor window and the curtain rises through the window heated by the outside air, and then the indoor air cooled by the cooling is curtained. Is drawn into the window space from below, causing convection between the air in the window space and the room air, and conversely during heating, the air in the window space is cooled and lowered through the window cooled by the outside air, and then heated. As the room air warmed by the air is drawn into the window space from above the curtain, convection occurs between the air in the window space and the room air, and this convection has a temperature difference between the room temperature and the outside air temperature. Since it continues, it has become a big energy loss at the time of air conditioning.

  In winter, condensation on the indoor side of the window is a major problem. The cause of condensation on the indoor side of the window is that the absolute pressure of water vapor is almost constant everywhere in an undivided indoor space, whereas the saturated vapor pressure of water vapor in the air decreases as the temperature decreases. The saturated vapor pressure of water vapor in the air at the window decreases as the outside air temperature decreases and the temperature of the air at the window in the room decreases, and when the saturated vapor pressure of water vapor in the air at the window becomes lower than the absolute pressure of water vapor in the indoor air, Water vapor in the air near the window cannot be left as it is, and condenses in order from the lowest temperature.

  Even if a general curtain does not allow light to pass through, there is some air permeability, so water vapor can pass freely, so there is no partition for water vapor, and the curtain is closed. By shielding the air to save energy, the temperature of the air near the window is lower than when not partitioned by a curtain and approaches the outside air temperature, so that condensation is likely to occur.

  In order to solve such a problem, for example, Patent Document 1 discloses a device for preventing energy saving and dew condensation by covering the entire outer wall with a heat-insulating rotatable structure. Additional installation is difficult because of cost and labor.

  Patent Document 2 discloses an apparatus for preventing dew condensation on the indoor side by closing the entire window opening using a screen member that is folded in a pleat shape and assembled in a pleated manner on the indoor side of the window opening. However, since it will create a shielded space on the indoor side of the existing window, the temperature of the existing window will be closer to the outside air temperature, so with a limited amount of water vapor in this shielded space However, condensation is easier than in the current situation, and a method for treating the condensation is required.

  In Patent Document 3, as a mechanism capable of operating the curtain rail up and down, the curtain is lowered by lowering the curtain rail, and the curtain and the floor are brought into contact with each other to prevent air convection by closing the gap under the curtain. Although it is unclear whether it can be installed when the shape is different from that of the existing curtain rail holder, and if the lower surface of the window is above the floor, install the existing curtain near the floor. There is a problem that it will not reach the floor unless it is long.

  Patent Document 4 discloses a device for preventing air convection by retrofitting a curtain box attached to an existing curtain rail to cover the top of the curtain to prevent air convection. Because there are curtain rails that cannot be installed due to the length, width (or spacing) of the curtain rails, and a wide variety of product lineups are required. It is difficult.

  Non-Patent Document 1 discloses a technique for preventing convection by attaching a band-shaped shielding band to the upper part, lower part, or upper and lower parts of a curtain, but it is difficult to attach to an existing curtain.

  Non-Patent Document 2 discloses a technique for preventing convection by bringing the upper and lower portions of the curtain into contact with the ceiling and the floor, but it is necessary to replace the existing curtain.

  In Non-Patent Document 3, a partition member that does not allow water vapor to pass is installed like a curtain on the indoor side, and each part is closed by its upper part, lower part, both side parts, or a combination thereof. Although a technique for preventing condensation on the indoor side of a window by suppressing convection with air is disclosed, in order to allow water vapor to pass through in general existing curtains, replacement of existing curtains or replacement of existing curtains Waterproofing is required.

  Patent registration No. 2662753   Patent Registration No. 3255760   Patent Registration No. 3824623   Patent Registration No. 4400764

  JP 2003-245194 A   JP 2006-230977 A   JP2015-167715A

  The existing general window opening is extremely poor in heat insulation performance compared with a general outer wall, and is the most necessary place for considering energy saving of a building. A window opening of a combination of a general window and a curtain has a limit as it is because the heat entering from outside can be suppressed only by opening and closing the window and opening and closing the curtain.

  When there is a shutter on the outdoor side of the window opening, closing it can contribute to energy saving and prevention of dew condensation on the indoor side, but it is not suitable for use in the daytime because the shutter does not transmit light.

  When air-conditioning a room with only a curtain without a window and curtain box at the window opening, there is a temperature difference between the outside air temperature and the room temperature even when the curtain is closed. After lightening and ascending and entering the room through the gap between the wall and the top of the curtain, the air cooled by the room cooling is drawn into the window space through the gap between the wall and the bottom of the curtain, and it is warmed and rises again. Air convection occurs in the air, and the air in the window space is cooled down by the outside air temperature and descends, enters the room through the gap between the wall and the lower part of the curtain, and then is heated by the room heating. Air is drawn into the window space from the gap between the wall surface and the top of the curtain, and it is cooled down again and enters the room to cause air convection. Since the temperature difference between the outside air temperature is continued as long as there, the energy conservation if it is possible to stop the convection of the air.

  Furthermore, since the outside air temperature decreases in winter and the absolute humidity decreases and it becomes easy to dry, it is often humidified indoors to prevent drying, and condensation forms on the indoor side of the window opening at night when the outside air temperature decreases. It is a big problem to occur.

  One aspect of the present invention provides an openable / closable window cover that can be easily installed on a window jar or an outer wall surface on the outdoor side of a window opening, and an installation method thereof. By closing the window cover, a generally closed space can be created outside the window opening.

  Another aspect of the present invention is to provide a lightweight curtain box that can be easily installed on a curtain without a curtain box on the indoor side of a window opening of a room for air conditioning, thereby reducing the gap between the wall surface and the top of the curtain. Can be closed. Furthermore, continuous air convection between the window-side air and the room air can be prevented by combining with a shielding wall or the like that simply closes the left and right gaps between the wall surface and the curtain side surface.

  One is to create a generally closed space on the outside of the window opening by using a window cover that can be easily installed on the outside wall of the window opening or on the outside wall of the window opening. By using it as a heat insulating layer, it is possible to prevent condensation on the indoor side of the window opening and to save energy during cooling and heating.

  The other is a curtain without a curtain box on the indoor side of the window opening, because the curtain rail is held by a cantilevered holder, there is a gap between the wall and the top of the curtain, and the curtain is closed. However, this gap remains open, and the wall and the lower part of the curtain remain open as well, so there is an open air convection path between the window space and the indoor space between the window and the curtain. If there is a temperature difference between the two spaces, convection will occur, but by installing a simple lightweight curtain box fixed to the wall at the top of the curtain, the gap between the wall and the top of the curtain can be closed, Since the air convection path between the window space and the indoor space can be blocked, energy can be saved by preventing heat loss due to convection.

  In addition, since the curtain rail is held by a cantilever holder, there is a gap between the left and right sides of the curtain between the wall and the wall between the wall and the top of the curtain as described above. Even so, air convection paths remain in the upper part of the gap between the left and right side surfaces of the wall and the curtain and the gap between the wall surface and the lower part of the curtain. Therefore, by installing curtain side walls that are fixed to the left and right wall surfaces of the window, the gap between the wall surface and the left and right side surfaces of the curtain can be closed, and the air convection path between the window space and the indoor space is completely blocked. Therefore, energy can be saved by preventing heat loss due to convection.

  Front view of the window cover installation state of the first embodiment on the outdoor side of the window opening   Horizontal sectional view of the window cover installed state of the first embodiment outside the window opening (XX section)   Vertical sectional view (YY cross section) of the window cover installation state of the first embodiment outside the window opening.   Image of fixing form of the end of the window cover of the first embodiment outside the window opening   A perspective view of the curtain box of the first embodiment   Vertical sectional view when installing the curtain box of the first embodiment   Vertical sectional view when installing the curtain box of the second embodiment   The perspective view of a pair of left and right curtain side closure walls of the first embodiment   Horizontal sectional view at the time of curtain side closing wall installation of the first embodiment   Horizontal sectional view at the time of curtain side wall installation of the second embodiment   Horizontal sectional view at the time of curtain side wall installation of the third embodiment   Horizontal sectional view through the curtain side fixed velcro portion of the fourth embodiment   Explanatory drawing of airflow during cooling without curtain box   Explanatory drawing of airflow during heating without curtain box   Explanatory drawing of airflow during cooling when there is a curtain box   Explanatory drawing of airflow during heating when there is a curtain box   Explanatory drawing of airflow during cooling when there is a gap on the left and right of the curtain when there is a curtain box (front view)   Explanatory drawing of airflow during heating when there is a gap on the left and right of the curtain when there is a curtain box (front view)   Explanatory drawing of airflow during cooling when there is no gap on the left and right of the curtain when there is a curtain box (front view)   Explanatory drawing of airflow during heating when there is no gap on the left and right of the curtain when there is a curtain box (front view)   The perspective view of the window cover of 2nd embodiment of the outdoor side of a window opening part   Vertical sectional view during opening operation of the window cover installation state of the second embodiment outside the window opening   Vertical sectional view at the time of closing operation in the window cover installation state of the second embodiment outside the window opening

  DESCRIPTION OF EMBODIMENTS Embodiments of a retrofitted outdoor window cover and a retrofit lightweight curtain box according to the present invention will be described with reference to the drawings. In the following drawings, the same or corresponding parts are denoted by the same reference numerals, and description thereof will not be repeated.

  FIG. 1 is a front view showing the installation state of the window cover of the first embodiment on the rear outdoor side, and FIG. 2 is a horizontal sectional view cut horizontally at a position indicated by a two-dot chain line XX in FIG. It is. Further, FIG. 3 is a vertical sectional view cut perpendicularly at a position indicated by a two-dot chain line YY in FIG.

  The window cover according to the first embodiment of the outdoor side fixes the left and right fixed shaft boxes 1 to the window rods 11 using the mounting screws 7, and the cover sheet 4 is stretched around the left and right fixed shafts 2 between them, It is characterized in that the upper and lower sides are suppressed by a closed box 3 and used. FIG. 1 shows a state in which the cover sheet 4 is removed from the upper closing box 3c and slightly lowered. However, when using this window cover, the cover sheet 4 is lifted up to the upper closing cover 3c and used. When not, the cover sheet 4 may be lowered to the bottom. On the contrary, the cover sheet 4 may be fixed by the upper closing box 3c and removed from the lower closing box 3d and raised upward.

  The cover sheet 4 may be wound on one side like a roll screen, but may be folded in a bellows shape and brought to one side.

  As shown in FIG. 2 and FIG. 3, the left and right fixing boxes 1 and the upper and lower closing boxes 3 are restrained so that they are in line contact with the stretched cover sheet 4, so that the four sides of the cover sheet 4 are fixed boxes. Since the space between the cover sheet 4 and the window can be largely shielded from the outside air by connecting to the window with four sides through the 1 and the closed box 3, this shielded space becomes a shielded air layer. It can contribute to heat insulation.

  It is preferable that the air layer is closed on all four sides because the air does not enter or exit completely. However, assuming that the air layer enters and exits due to convection due to a temperature difference, the upper and lower closing boxes 3 are It is desirable to have both, but even if there is only one of the top and bottom, if the left and right are closed, convection can be stopped and the same energy saving effect can be expected as a shielded air layer.

  In FIG. 3, the closed box 3 is fixed so as to sandwich the cover sheet 4. However, if the contact with the cover sheet 4 is connected to both ends of the closed box 3, air is not passed, so it is suppressed without pinching. However, it may be used, but if the cover sheet 4 undulates due to the wind of the outside air, there is a risk of contact coming off, so it is better to fix at least one of the upper and lower sides.

  FIG. 4 shows a method of connecting the cover sheet 4 to the fixed shaft 2 in the fixed box. The elastic ring-like retaining ring 5 is passed through the fixed shaft 2 and the clip 6 attached to the retaining ring 5 is used for the cover sheet 4. The fixed form which pinches | pinches and fixes is shown. If the combined length of the ring 5 and the clip 6 is too long, the end of the cover sheet 4 will not stay in the fixed box 1 and the linear contact between the fixed box 1 and the cover sheet 4 will be interrupted. There is. By using the method of fixing the end of the cover sheet 4 with the clip 6, the cover sheet 4 can be cut into a free length and used without being influenced by the width of the window opening.

  By providing a window cover on the outdoor side to create an air layer shielded between the outside air and the window 12, an energy saving effect of the window opening can be expected in air conditioning, and when the outdoor temperature in winter decreases, the outdoor side It is possible to keep the temperature of the window 12 higher than when there is no window cover, and the effect of preventing condensation on the indoor side of the window opening can be expected.

  FIG. 5 is a perspective view of the appearance of the first embodiment of the retrofit lightweight curtain box according to the present invention, which has a lid-like shape with a wall surface as one side wall, and is a curtain curtain without an existing curtain box. It is characterized by being fixed to the wall surface after installation so that the top of the rail is covered.

  In the lightweight curtain box 100, a curtain box fixing portion 100b for fixing to the wall surface 10 is connected to the long side of the curtain box lid portion 100a around the flat curtain box lid portion 100a. The opposite long side is connected to the curtain box front hanging part 100c, both sides on the short side of the curtain box lid part 100a are connected to the curtain box horizontal hanging part 100d, and the curtain box front hanging part 100c and the curtain box horizontal hanging part 100d are The curtain box cover 100a is bent and connected approximately 90 degrees in the same direction to form the side wall of the curtain box 100.

  The curtain box wall surface fixing part 100b for fixing to the wall surface 10 is bent by approximately 90 degrees with respect to the curtain box lid part 100a and is connected to the curtain box lid part 100a, but the bent direction is bent approximately 90 degrees in the opposite direction to the curtain box front hanging part 100c. The curtain box of the second embodiment shown in FIG. 5 is the curtain box of the first embodiment shown in FIG. 5 and is bent by approximately 90 degrees in the same direction as the curtain box front hanging portion 100c.

  FIG. 6 shows a vertical cross-sectional view orthogonal to the wall surface when the curtain box 100 of the first embodiment is installed on the wall surface 10, and the wall surface 10 and the curtain box wall surface fixing portion 100 b are used for attaching the curtain box 100 to the wall surface. The double-sided tape 101 is used to bond the curtain box front hanging portion 100c and the curtain box cover 103 to each other using the double-sided tape 102.

  The double-sided tape 101 and the double-sided tape 102 may be adhesive adhesive tapes on both sides, but may be affixed with glue or an adhesive, or may be a magic tape that can be peeled off. Furthermore, in order to fix to the wall surface 10 reliably, you may fix to a wall surface with a screw etc. from the curtain box wall surface fixing | fixed part 100b.

  The double-sided tape 102 and the curtain box cover 103 may be omitted, but the curtain box cover 103 can be used to express a different appearance from the original material, or to change the color of the curtain box cover 103 depending on the season. Can give a sense of the season.

  FIG. 7 shows a vertical sectional view perpendicular to the wall surface when the curtain box 100 of the second embodiment is installed on the wall surface 10 except that the direction of bending of the curtain box wall surface fixing portion 100b is approximately 180 degrees opposite. Is the same as FIG.

  FIG. 8 is a pair of left and right perspective views of the curtain side wall 110 according to the first embodiment for closing the gap between the wall surface 10 formed on the left and right of the curtain 17 and the side surface of the curtain 17. It is attached to the wall surface 10 along the left and right side surfaces of the curtain 17 on the side, and is attached so as to close the gap between the wall surface 10 and the side surface of the curtain 17.

  9 to 11 are horizontal cross-sectional views showing an embodiment according to a difference in the shape of the curtain side surface closing wall 110, and FIG. 12 is an embodiment diagram showing a simple method for closing the side surface of the curtain 17.

  FIG. 9 shows the curtain side surface closing wall 110 when the side surface of the curtain 17 is continuously sandwiched between the curtain side surface closing walls 110 and fixed to the wall surface 10. Since the curtain 17 is fixed, the curtain 17 does not come off even if the curtain 17 is slightly shaken. Since the curtain side wall 110 can be seen from the room, the effect of tightening the left and right sides of the curtain can be expected.

  FIG. 10 shows the curtain side surface closing wall 110 that is fixed to the wall surface 10 when the side surface of the curtain 17 is continuously installed in the vertical direction on the curtain side surface closing wall 110 so as to be in contact with the curtain 17 from the indoor side. . Since the curtain side wall closing wall 110 is brought into contact with the curtain 17 on the surface of the wall surface 10 of the curtain 17, the curtain side wall closing wall 110 can be installed so that it cannot be seen from the room. It will be installed in a form that is slightly pushed out from the wall 10.

  FIG. 11 shows the curtain side surface closing wall 110 that is fixed to the wall surface 10 when the curtain 17 is installed so that the side surface of the curtain 17 is continuously in contact with the curtain side surface closing wall 110 from the wall surface 10 side. Since the curtain side wall 110 is brought into contact with the curtain 17 on the indoor side of the curtain 17, the effect of tightening the left and right sides of the curtain can be expected because the curtain side wall 110 can be seen from the room. The curtain 17 is installed in such a manner that the curtain 17 is slightly pressed against the wall surface 10.

  FIG. 12 is a horizontal sectional view when the curtain 17 is horizontally cut at a height crossing the curtain side surface fixing magic tape 110c in a state where the side surface of the curtain 17 is fixed to the wall surface 10 using the curtain side surface fixing magic tape 110c. After adhering one of the curtain side surface fixing magic tapes 110c to the side surface of the curtain 17 away from the wall surface 10 and the other side to the wall surface 10, the curtain end surface fixing magic tapes 110c are joined together. The wall surface 10 and the curtain 17 are substantially in close contact with each other.

  It is not necessary to attach the curtain side surface fixing magic tape 110c to the entire side surface of the curtain 17, and if the height of the attachment is higher than the lower end of the curtain box cover 103 of FIGS. 6 and 7, the curtain side surface fixing magic tape 110c is used. In the lower part, the gap between the wall surface 10 and the curtain 17 is substantially closed by the weight of the curtain 17, so that the air flow to the side can be stopped. Although the gap between the wall surface 10 and the curtain 17 is open above the magic tape 110c for fixing the curtain side surface, the flow of air to the side can be stopped by the curtain box cover 103 wound up to the side surface of the curtain box 100. it can.

  The curtain side surface fixing magic tape 110c may be glue or adhesive instead of the magic tape, but the magic tape is more convenient because the curtain 17 can be easily removed. Further, in order to securely fix to the wall surface 10, the curtain 17 may be fixed to the wall surface 10 with screws or the like.

  FIG. 13 is a diagram schematically showing the flow of air near the window during cooling when the curtain 17 is closed when there is no curtain box. Since the outside air temperature is higher than the room temperature, the air in the space m near the window is The temperature rises with a reduced specific gravity and flows through the gap between the wall surface 10 and the upper part of the curtain 17 and flows into the indoor upper space as indicated by the arrow a, while the indoor air cooled by the indoor cooling is By flowing through the gap between the lower part of the curtain 17 and being drawn into the space m at the window as shown by the arrow b, convection continuously occurs between the air at the window and the room air, and the air flowing into the room is warmed. Extra cooling energy is used to cool the air.

  FIG. 14 is a diagram schematically showing the flow of air near the window during heating when the curtain 17 is closed when there is no curtain box. Since the outside air temperature is lower than the room temperature, the air in the space m at the window is Cooled and lowered in specific gravity, passes through the space between the wall 10 and the lower part of the curtain 17 and flows into the lower space of the room as indicated by the arrow d, while the room air heated by the room heating becomes the wall 10 and the curtain. By passing through the gap at the top of 17 and being drawn into the space m at the window as shown by the arrow c, convection continuously occurs between the air at the window and the room air, and the cooled air flowing into this room is Extra heating energy is used to warm up.

  FIG. 15 is a diagram schematically showing the flow of air near the window during cooling in the state where the curtain 17 is closed when the curtain box is present. Since the outside air temperature is higher than the indoor temperature, the window 12 in the space m near the window. The near air is warmed and the specific gravity is lightened and rises, but the upper part is blocked by the curtain box 100 and cannot rise any further. The air near the window 12 in the space m near the window is the curtain 17. Since the temperature is higher than the air near the air, the air near the window 12 rises, and the air near the curtain 17 is lowered by that amount so as to be pushed out continuously, as indicated by arrows e and f. Although convection occurs in the space m near the window, continuous convection with room air does not occur, so that extra cooling energy is not necessary.

  FIG. 16 is a diagram schematically showing the flow of air near the window during heating in the state where the curtain 17 is closed when the curtain box is present, and the outside air temperature is lower than the room temperature, so that the window 12 in the space m near the window. The close air is cooled and the specific gravity becomes heavy and descends, but the upper part is blocked by the curtain box 100, so it cannot leave the window space m, and the air close to the window 12 in the window space m However, since the temperature near the curtain 17 is lower than that of the air near the curtain 17, the air near the window 12 with a higher specific gravity falls, and the air near the curtain 17 rises as much as the air is pushed out, as shown by arrows g and h. Although continuous convection occurs in the space m by the window, since no continuous convection with room air occurs, extra heating energy is not necessary.

  FIG. 17 is a diagram schematically showing the flow of air at the time of cooling when the curtain 17 is closed with the curtain 17 closed and the side surface of the curtain 17 is open. The outside air temperature is higher than the room temperature. For this reason, the air in the space m at the window is warmed and the specific gravity is lightened and tends to rise, but since the upper part is blocked by the curtain box 100, it is once pushed sideways to bypass this, and the wall 10 and the curtain 17 flows through the gap between the upper side of the room 17 and enters the room after entering the room, and flows into the room as indicated by the arrow i. By flowing through the gap in the form of being drawn into the space at the window as shown by arrow b, convection occurs continuously between the air at the window and the room air, and cooling is performed to cool the warmed air flowing into the room. Of energy is extra use.

  FIG. 18 is a diagram schematically illustrating the flow of air at the time of heating when the curtain 17 is closed with the curtain 17 closed and the side surface of the curtain 17 is open. The outside air temperature is lower than the room temperature. Therefore, the air in the space m at the window is cooled and the specific gravity increases and descends, passes through the gap between the wall surface 10 and the lower part of the curtain 17, flows into the room as indicated by the arrow d, and on the other hand, the room air heated by the room heating However, since the upper part of the wall surface 10 and the curtain 17 is blocked by the curtain box 100 and cannot pass therethrough, it passes through the gap between the wall surface 10 and the upper side surface of the curtain 17 as shown by the arrow j. By flowing into the space m, convection continuously occurs between the air at the window and the room air, and extra heating energy is used to warm the cooled air flowing into the room. .

  FIG. 19 is a diagram schematically showing the flow of air at the time of cooling when the curtain 17 is closed and the side face of the curtain 17 is closed when the curtain box is present, and the outside air temperature is higher than the room temperature. Therefore, in the space m near the window, the air near the window 12 is warmed and the specific gravity is lightened and rises, but the upper part is covered by the curtain box 100 and the side face of the curtain 17 is closed by the curtain side wall 110. In the space m near the window, the air near the window 12 has a higher temperature than the air near the curtain 17, so the air near the window 12 rises with a lighter specific gravity, and the air near the curtain 17 is pushed out by that amount. In this way, continuous convection as indicated by arrows e and f occurs in the space m near the window, but since no continuous convection with room air occurs, extra cooling energy is not required.

  FIG. 20 is a diagram schematically illustrating the flow of air at the time of heating in a state where the curtain 17 is closed and the side surface of the curtain 17 is closed when the curtain box is present, and the outside air temperature is lower than the room temperature. For this reason, the air near the window 12 in the space m at the window is cooled and the specific gravity increases and falls, but the upper part is closed by the curtain box 100 and the side face of the curtain 17 is closed by the curtain side wall 110, so Because the temperature near the window 12 in the space m near the window is lower than the air near the curtain 17 in the space m near the window, the air closer to the window 12 falls because of the higher specific gravity. As the air closer to 17 rises, continuous convection as indicated by arrows g and h occurs in the space m near the window, but continuous convection with room air does not occur. Heating energy Guy is no longer necessary.

  The continuous convection as shown in FIG. 17 and FIG. 18 is a flow that rises or descends after changing a straight upward or downward flow to a flow that dams up and laterally bypasses. Since the convection is gentler than the straight convection that is straight up or down, a sufficient energy saving effect can be expected even if only the curtain box 100 is installed without closing the side surface of the curtain 17. A greater energy saving effect can be obtained by closing the side surface of the curtain 7 as shown in FIG.

  Even in the case of curtains where curtain boxes have already been installed in existing buildings, or roll screens or blinds installed in close contact with the walls, the gaps between the sides of the curtains, roll screens and blinds and the walls are open. Therefore, an energy saving effect can be obtained by retrofitting the curtain side surface closing wall 110 for closing the gap between the side surface and the wall surface.

  During cooling, hot air that enters the indoor ceiling through the wall surface 10 through the gap between the curtain, roll screen, blinds, etc. and the wall surface 10 heats the ceiling member. Radiant heat is radiated from the ceiling, and the upper body of the human being is heated, leading to lowering the cooling set temperature in order to feel hot, and extra cooling energy is consumed.

  Similarly, during heating, the cold air that enters the indoor floor through the wall between the curtain, roll screen, blinds, etc. and the wall cools the flooring and the radiant heat from the floor is removed from the floor. By radiating, the lower body is cooled to experience the cold and raise the set temperature for heating, and extra heating energy is consumed.

  Therefore, effectively closing the gap between the curtain, roll screen, blinds, etc. and the wall surface brings the temperature of the ceiling and floor close to room temperature, suppresses the sensible temperature due to radiant heat, and reduces the set temperature for heating and cooling. It leads to restraint and energy saving.

  When the curtain box 100 and the curtain side surface closing wall 110 are present during cooling, when the temperature of the window space m between the curtain, roll screen, blind, etc. and the window 12 is expected to rise due to solar radiation, The temperature rise can be suppressed by slightly opening 12 to convection the air and the outside air in the window space m between the curtain, roll screen, blind, etc. and the window 12, so that the room from the curtain, roll screen, blind, etc. This leads to the suppression of radiant heat to the body, the temperature of the body due to radiant heat is suppressed, and the set temperature during cooling is suppressed, resulting in energy saving. Opening the window 12 slightly when the curtain box 100 and the curtain side surface closing wall 110 are not provided does not save energy because convection occurs between the room and the outside air.

  FIG. 21 is a perspective view of the window cover of the second embodiment on the outdoor side of the window opening, in which a sheet-like cover is incorporated behind the lattice portion of a general horizontal window lattice, and the fishing band 206 It is the place which was fixed in the state which opened the window cover, and is a perspective view of the window cover which looks like a horizontal window lattice when it sees from the front.

  FIG. 22 is a vertical cross-sectional view orthogonal to the outer wall surface when the window cover of the second embodiment outside the window opening is opened without using it. In this state, the lattice part can be used as a cocoon, so it can be expected to have a sun shade effect in the daytime in summer.

  FIG. 23 is a vertical cross-sectional view orthogonal to the outer wall surface when the window cover of the second embodiment on the outdoor side of the window opening is closed to be used. From the state in which the window cover of FIG. 22 is opened, the window cover fixing shaft 204 is rotated about 90 degrees around the window cover, and the upper and lower ends of the window cover cover sheet 202 are overlapped and closed, Since the space between the cover sheet 202 of the window cover and the window can be generally shielded from the outside air, the shielded space becomes a shielded air layer and can contribute to heat insulation.

  The window cover of the first embodiment on the outdoor side of the window opening shown in FIG. 1 shows a form in which the fixed shaft 2 is arranged on the left and right sides and the cover sheet 4 is opened and closed vertically, but this device is rotated 90 degrees. The fixed shaft 2 may be arrange | positioned up and down, and the form which the seat cover 4 opens and closes right and left may be sufficient. Similarly, in the window cover of the second embodiment on the outdoor side of the window opening shown in FIG. 21, the window cover fixing portion 200 of the second embodiment is arranged on the left and right, and the cover sheet of the window cover of the second embodiment 202 shows a form of rotating around the fixed axis 205 of the window cover of the second embodiment in which the 202 is horizontally arranged. This device is rotated 90 degrees so that the fixing part 200 of the window cover of the second embodiment is moved up and down. Arrangement may be made such that the cover sheet 202 of the window cover of the second embodiment rotates around the fixed shaft 205 of the window cover of the second embodiment, which is arranged vertically.

  The curtain box of the first embodiment or the second embodiment shown in FIGS. 5 to 7 and the curtain side wall of the first embodiment or the second embodiment shown in FIGS. 8 to 10 are different devices. However, these curtain box and curtain side wall may be integrally formed.

  Although the embodiments and examples of the present invention have been described above, the embodiments and examples disclosed this time are illustrative and not restrictive. The scope of the present invention is shown not by the embodiments and examples described above but by the scope of claims, and is intended to include all combinations within the scope and meaning equivalent to the scope of claims.

  Claims 1, 2, and 3 are independent claims and can be used alone.

1 Fixed shaft box 1a Fixed shaft box (left)
1b Fixed axis box (right)
2 Fixed shaft 2a Fixed shaft (left)
2b Fixed shaft (right)
3 Closing box 3c Closing box (top)
3d closed box (bottom)
4 Cover sheet 5 Retaining ring 6 Clip 7 Mounting screw 10 Wall surface 11 Window rod 12 Window 12a Window (left)
12b Window (right)
13 Screen door 14 Curtain rail 15 Curtain rail holder 16 Lace curtain 17 Curtain 100 Curtain box 100a Curtain box lid 100b Curtain box wall fixing part 100c Curtain box front hanging part 100d Curtain box horizontal hanging part 101 Curtain box wall adhesive tape 102 Curtain box Cover part adhesive tape 103 Curtain box cover 110 Curtain side wall 110a Curtain side wall (left)
110b Curtain side wall (right)
110c Curtain side surface fixing magic tape 200 Second embodiment window cover fixing portion 200a Second embodiment window cover fixing portion (left)
200b Second Embodiment Window Cover Fixing Part (Right)
201 Window Cover Closure Box 201c of Second Embodiment Window Cover Closure Box (Upper) of Second Embodiment
201d Second embodiment window cover closing box (bottom)
202 Cover sheet 203 of the window cover of the second embodiment Passive part 203a of the window cover of the second embodiment Passive part of the window cover of the second embodiment (left)
203b Passive part of window cover of second embodiment (right)
204 Passive shaft 205 of the window cover of the second embodiment 205 Fixing shaft 206 of the window cover of the second embodiment Suspension band 207 of the window cover of the second embodiment Fixing screw a of the window cover of the second embodiment a upper part in the window space Air ascending air b Second air rising air to the lower part of the window space Secondary air descending air d to the upper part of the window space d Air descending air of the lower part of the window space e Upper part of the window space Airflow f of the lower air in the window space Secondary airflow g of the upper air in the window space h Airflow of the lower air in the window space i Detoured airflow of the upper air in the window space j Detoured secondary downdraft of the upper air in the window space m Window space Note: The following are registered trademarks 1. Magic tape

Claims (4)

  A window cover that is attached to a window or an outer wall so as to cover the window opening from the outside in order to save energy in the window opening of the building and prevent condensation on the indoor side of the window opening. A window cover that can save energy and prevent condensation by closing the left and right sides and the upper or lower side of the four gaps, or closing all four sides of the gap   A simple curtain box that is attached to an existing curtain without a curtain box on the indoor side of the window opening in order to save energy at the window opening of the building Installation method   Closed wall for closing the gap between the left and right side surfaces of the curtain or roll screen or blind and the indoor wall in order to save energy in the window opening of the building and its installation method   A window cover that is attached to a window wall or outer wall so as to cover the window opening from the outside in order to save energy in the window opening of the building and prevent condensation on the indoor side of the window opening. 2. A window cover and a method of installing the window cover according to claim 1, further comprising wing-like rotatable covers arranged in a window lattice pattern at intervals.