JP2002097870A - Solar radiation shielding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To dissolve various defects on the thermal degradation of a membrane surface, appearance and exhaust air of a solar radiation shielding device having a conventional airtight function by additionally providing the membrane surface of a transparent sheet. SOLUTION: The end of the flexible transparent sheet 13 slightly wider than the spacing of slats 10 and provided with a slit 15 for avoiding interference with an elevating member 11 is pin-jointed to the end of the slat 10 on the inner surface side of a blind. During the use of the blind, the transparent sheet 13 rests on the one-stage lower slat 10 to ensure airtightness, and when housing the blind, the blind is housed with the transparent sheet as it is resting on the one-stage lower slat 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solar shading device provided inside a window glass of a general building.

[0002]

2. Description of the Related Art Various solar shading devices are arranged on the indoor side of a window glass surface of a building for the purpose of preventing glare caused by solar radiation and reducing the entrance of solar heat into the room.

[0003] Among the solar shading devices, for example, among those using blinds, there is a type in which a window glass is doubled and a blind is built in a hollow layer between the windows, and the blind is formed by allowing room air to pass through the hollow layer. There is one that discharges heat accumulated in the room to reduce long-wave radiation heat to the occupants.

[0004] Such double-glazed windows with built-in blinds are disadvantageous in that they are expensive and are difficult to spread, and the high heat insulation prevents heat radiation to the outside at night in summer.

[0005] This inconvenience can be solved, the radiant heat to the room can be reduced as in the case of the double glass with built-in blinds by a low cost and simple structure, and the heat radiation to the outside during summer night is not hindered. To provide a novel solar shading device capable of forming a comfortable environment,
No. 9373 proposes a solar shading device shown in FIG.

That is, in FIG. 5, reference numeral 1 denotes a window glass of a window, and a blind 3 composed of a plurality of slats 2 is provided inside the window glass 1.

[0007] A transparent sheet 4 having little air permeability is attached to the indoor end of the slat 2 of the blind 3 using an adhesive, and a lace-like air permeable and transparent material is attached to the outdoor end. The sheet 5 is adhered with a cloth or the like.

[0008] An exhaust duct 6 is provided above the blind 3 provided with the transparent sheet 4 and the sheet 5 having air permeability and transparency, and an exhaust fan 7 is provided in the exhaust duct 6.
Is arranged.

However, in order to shield the solar radiation from the outdoor, as shown in FIG. 6A, the sheet 5 on the outdoor side is pulled down, the transparent sheet 4 on the indoor side is pulled up, and the slat 2 is tilted. The heat accumulated on the surface passes through the outdoor sheet 5 and flows out to the window glass 1 side, and is exhausted to the upper exhaust duct 6 by the exhaust fan 7 together with the rising airflow on the window surface. Therefore, the inflow of solar radiation into the room can be greatly reduced.

Further, the transparent sheet 4 provided on the indoor side of the slat 2 prevents radiant heat from entering the room. This allows
Since the flow of air to the indoor side can be prevented, the radiation environment around the window is improved. The transparent sheet 4 can also prevent the cold airflow (cold draft) generated along the window glass 1 from flowing into the room, so that the heat insulation load can be reduced and the heating load can be reduced particularly in winter. .

Then, as shown in FIG.
If the slats 2 are placed in the horizontal position with the slats lowered, a view of the outside world can be obtained through the transparent sheet 4 and the see-through sheet 5 while ensuring the heat insulation of the window. Brightness can be taken into the room.

In order to raise the blind 3, the transparent sheet 4 and the sheet 5 may be folded up as shown in FIG. 6c, and if this is done in the summer night, heat radiation to the outside is obstructed. I can't do that.

The blind 3 to which the transparent sheet 4 and the sheet 5 are attached can be retrofitted on the indoor side of the window glass 1, and the same effect as double glass can be expected with a simple device.

However, the low cost and simple structure can reduce the radiant heat to the room and can expect a high solar shading performance as well as the double glazing with built-in blinds, and hinder the heat radiation to the outside at night in summer. Without being
The view can be secured even with the blinds lowered,
He says that it can create a comfortable environment throughout the year.

[0015]

In the case where a double sheet is arranged in place of the above-mentioned double glass window and the sheet is integrated with the slat so as to be foldable, the sheet 5 is provided at the forefront of solar radiation. Is arranged, but it is understood that the heat resistance is far inferior to glass, and that deterioration and elongation occur as a matter of course, but as described above, the sheet is integral with the slat Therefore, it is understood that the irregularity of the slats is caused.

Although it is later, it is understood that a similar situation occurs to some extent even in the sheet 4 which receives severe radiant heat.

Further, the appearance when folded is such that soft sheets protrude in a bag shape on both sides, which is inferior in aesthetic appearance. This ledge, on the topmost one, is an obstacle to exhaust.

At this time, depending on the softness of the sheet, it is difficult to fold the sheet, and if the sheet is folded to make this smooth, a streak appears to impair the view when the blind is lowered.

The present invention has been made in view of the circumstances described above, and has as its object to improve the airtight mechanism for exposing a single face of a sheet having an unreasonable heat resistance to sunlight and to improve the airtight mechanism. It is an object of the present invention to provide a solar shading device in which a transparent sheet of a component can function without any thermal degradation even under any solar radiation, and does not cause any trouble in appearance and exhaust.

[0020]

In order to achieve the above object, a solar shading device according to the present invention is provided with a slit at a slat end on the inner surface side of a blind, which is slightly wider than a slat interval to avoid interference with a lifting member. The transparent sheet end provided with a pin is joined with a pin, and when using the blind, the transparent sheet forms an airtight wall by hanging on the lower slat, ensuring airtightness, and stays on the lower slat when storing the blind It can be stored.

[0021]

[Function] An airtight wall is formed by suspending a transparent sheet hanging between slats on the inner side of a blind, thereby ensuring airtightness.

The airtight wall is not vertically integrated but divided between the slats, and its free lower end rests on the lower slat, and does not impose a load on the integrated upper slat by pin connection. There is no risk of irregularity.

The hanging sheet is transparent and does not obstruct the view when the blind is used.

Since the transparent sheet sandwiched between the slats is stored between the slats and does not protrude when the blind is stored, there is no problem in appearance and exhaustion.

[0025]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS.

In FIGS. 5 and 6, only the configuration newly added to the existing blind is introduced, and as if the slat support, the inclination control, and the elevation control are performed only by the introduction member, there is a misunderstanding. The support, the tilt control, and the elevation control are achieved by the following components.

That is, the so-called ordinary lifting type horizontal blind 8 shown in FIG. 4 is different from the so-called ordinary lifting type horizontal blind 8 in that a lattice-like cord (ladder cord) 9 is provided at regular intervals on the ladder portion.
The slat 10 is held and received, and the ladder cord (ladder cord 9) on the ladder is relatively raised and lowered to adjust the angle of the slat 10, and to perform light shielding and light transmission adjustment. The lower end of the body is fixed to both sides of a bottom rail (not shown) as a weight and extends, and an elevating member 11 is fixed to the center of the bottom rail through the slat 10 for support. This guarantees that the bottom rail can be moved up and down without inclination.

With this configuration, when fully closed at the maximum inclination (the ladder cord on the trailing edge side (indoor) of the slat 10 is pulled up against the bottom rail load, and the ladder cord on the leading edge side (outdoor) of the slat 10 is exposed to the bottom rail load. Spread)
Even in this case, the upper and lower slats 10 and 10 are barely wrapped in the horizontal direction, and there is no abutment between the ends (because the slats 10 and 10 are spaced apart from each other in the column).

Since the elevating member 11 extends (responsible for supporting the bottom rail) as well as the pair of pillars, the elevating member for the elevating member perforated on the slat 10 which is in the inclined position when fully closed is used. The through-hole 12 must have a play in the slat width direction so as to be able to tilt.

In FIGS. 1 and 2, a flexible transparent sheet 13 slightly wider than the interval between the slats 10 is pin-joined to the end of the slat 10 inside the blind.
4 and is suspended with its lower end free.

The sheet 13 is provided with a slit 15 for avoiding interference with the lifting member 11 on the lower side.

However, when the blind is used, the transparent sheet 13 forms an airtight wall so as to cover the lower slat 10, thereby ensuring airtightness (FIG. 2a). When the blind is retracted, the transparent sheet 13 covers the lower slat 10. It can be stored as it is (FIG. 2b).

FIG. 3 shows an embodiment in which the blind according to the present invention is applied to the head box 16 as described above.
7 are shown under the introduction.

[0034]

Since the solar shading device of the present invention is configured as described above, it has the following effects.

Unlike the conventional one, the transparent sheet as the airtight forming material is divided and stored between the slats, and the upper slat, which is supported by the lower slat with the lower end as a free end, does not cause excessive force. For a rational configuration, the air-tight function, which is not available in conventional blinds, has been splendidly added without burdening the existing blinds. As a result, no projection is generated, and no inconvenience in appearance and exhaust is generated.

[Brief description of the drawings]

FIGS. 1a and 1b show the main parts of the device of the present invention when the slat is opened;
It is a side view.

FIGS. 2a and 2b are side views of a main part of the apparatus of the present invention when a slat is closed and a transparent sheet is stored.

FIG. 3 is an explanatory diagram of application of a headbox of the device of the present invention when the slat is opened.

FIG. 4 is a structural explanatory view of a vertical blind of a lifting type.

FIG. 5 is an explanatory view of a conventional solar shading device.

6a, b, c show the closed state of the device introduced in FIG. 5,
It is an explanatory view of an opened state and a rolled-up state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1; Window glass 2; Slat 3; Blind 4; Transparent sheet 5; Sheet 6; Exhaust duct 7; Exhaust fan 8; Horizontal blind 9; Ladder code 10; Slat 11; Elevating member 12; Through hole 13; Pin joint 15; Interference avoiding slit 16; Head box 17; Bottom rail

Continuing from the front page (72) Inventor Shin Nakamura 1-5-1, Otsuka, Inzai City, Chiba Pref. In the Technical Research Institute of Takenaka Corporation (72) Inventor Naoyuki Hirakawa 82-1-1, Ginza, Chuo-ku, Tokyo Stock Company Company Takenaka Corporation Tokyo head office F term (reference) 2E043 AA01 AA04 BB12 DA05 DB05

Claims (1)

[Claims] 1. A transparent sheet end provided with a slit, which is slightly wider than a slat interval, for avoiding interference with a vertically moving member, is pin-joined to a slat end on the inner surface side of the blind. The solar shading device is characterized in that an airtight wall is formed in the form of the lower slat to secure airtightness, and the blind can be stored while being hung on the lower slat when the blind is stored.