JPH0540237Y2 - - Google Patents

Description

[Detailed description of the invention] Purpose of the invention [Field of industrial application] This invention relates to blinds placed on windows of houses.

[Prior Art] Conventionally, the slats of blinds are formed of thin aluminum plates, and by adjusting the angle of the slats, sunlight can be blocked as appropriate. With such blinds, you can enjoy the outdoor scenery by adjusting the angle of the slats horizontally, but by adjusting the angle of the slats according to the angle of incidence of sunlight into the room, as the slats approach the vertical direction, The outdoor view is also obstructed by the slats. Therefore, as a type of slat, we fabricated a solar ray reflecting layer on one surface of a transparent synthetic resin substrate, consisting of a thin metal film that reflects sunlight appropriately.
On the other hand, it has been proposed that the surface is processed with an infrared reflective layer that reflects solar heat from outdoors and radiant heat from indoors and outdoors. Since such slats allow some visible light to pass through, it is possible to enjoy the outdoor landscape even when the slats are fully closed during the day when the outside is brighter than the inside.

However, in such slats, the sunlight reflective layer and infrared reflective layer specularly reflect light from indoors,
In order to ensure privacy especially at night, when the slat 21 is rotated to the fully closed state as shown in FIG.
The difference in brightness between the part that reflects the light and the other parts increases, causing the slat surface to glare, causing discomfort to the occupants. As shown, sunlight passing through two slats 21 and one slat 2
There was a problem in that the sunlight passing through the room created a striped shadow inside the room, which was not aesthetically pleasing.
Therefore, a blind has been proposed in which the glare and striped shadows on the slat surface are reduced by applying a matte finish such as providing minute irregularities on the slat surface.

[Problem to be solved by the invention] However, in the above-mentioned blind, the matte finish increases scattered light and reduces the parallel light transmittance of the slats, so the slats 21 are completely closed as shown in FIG. There is a problem in that it becomes difficult to appreciate the outdoor scenery. The object of this invention is to provide a blind which prevents the occurrence of glare on the slat surface as described above even when the slats are fully closed, and which does not impede the enjoyment of the outdoor scenery.

Structure of the invention [Means for solving the problem] In order to solve the above problems, this invention replaces the gaps between the first slats of multiple stages supported horizontally on the wefts of the ladder cord with the second slats. The second slat is made of a transparent material that partially transmits visible light, and is supported in an oblique manner with its lower surface facing the indoor side.

[Function] With the above means, when the blind is in a fully closed state where the space between the first slats is blocked by the second slat, part of the visible light is transmitted into the room by the second slat, so it becomes possible to enjoy the scenery outdoors, and The light reflected from the indoor lighting by the second slat is reflected downward by the second slat and does not enter the eyes of the occupant.

[Embodiment] Hereinafter, a first embodiment embodying this invention will be described with reference to the drawings. As shown in FIG. The slats 3 and 4 are supported in a stacked manner, and with the slats 3 and 4 stacked together, they can be raised and lowered and their angles can be adjusted in the same way as a normal blind. The first and second slats 3 and 4 are made of transparent synthetic resin and have a mountain-shaped cross section, and a known solar ray reflecting layer and infrared ray reflecting layer made of a thin metal film are formed on the surface of the slats to provide light shielding properties. It is designed to allow some visible light to pass through while ensuring that the light is protected.
Incidentally, both slats 3 and 4 may be made of transparent colored synthetic resin to satisfy the above-mentioned light-shielding properties and partial transparency of visible light. The first slat 3 located on the lower side is subjected to a matte finish such as providing minute irregularities on its surface.

The second slat 4 stacked on top of the first slat 3 has a connecting ring 5 attached to its short side end, and the connecting ring 5 connects to a connecting cord 6.
As shown in Fig. 1, the upper end of the connecting cord 6 is connected to a head box (not shown).
The winding shaft 7 is wound around a winding shaft 7 which is rotatably supported within the winding shaft 7. When the winding shaft 7 is rotated by operating the operating handle 8 hanging down from one side of the head box, the short side of the second slat 4 is lifted upward as shown in FIG. There is.

Now, in the blind 1 constructed in this way, when the winding shaft 7 is driven to rotate and the short side of the second slat 4 is pulled up to the height of the first slat 3 in the upper stage as shown in FIG. , the state corresponds to the fully closed state of the slats of a conventional blind, and external light is appropriately blocked by the first and second slats 3 and 4. The scenery outside the window can be viewed through the transparent second slats 4, and the light diffusion effect caused by the matte finish applied to the first slats 3 prevents striped shadows from forming inside the room. In addition, the second slat 4 is not rotated to the vertical direction, and the slat surface on the indoor side of the second slat 4 faces diagonally downward, so that the light from the indoor lighting equipment is transmitted to the second slat 4. The slats 4 do not reflect specularly at a height that can be seen by occupants in the room, and the first slat 3 has a matte finish to prevent specular reflections, causing discomfort to occupants due to glare. Never.

Furthermore, if the short side of the second slat 4 is lowered and both slats 3 and 4 are stacked as shown in Fig. 3, the outdoor scenery can be directly admired, giving a more open feeling. be able to.

In the above embodiment, the short side of the second slat 4 can be raised and lowered by the connecting cord 6, but the short side of the second slat 4 can be suspended from the end of the short side of the first slat 3. The second slats 4 may be always positioned obliquely between the first slats 3.

Next, a second embodiment embodying this invention will be explained with reference to FIGS. 4 and 5. The blind 9 of this embodiment has the same material as that of the previous embodiment on the weft thread 2a of the ladder cord 2. A first slat 3 is supported. The second slat 4, which is also made of the same material as in the above embodiment, has its short side end supported by a transparent tape 10 on the short side end of the first slat 3 located above it, and its long side end connected. When connected by the cord 6, a long hole 11 is formed to avoid the weft thread 2a. Further, the first slat 3 is formed with an insertion groove 12 for passing the connecting cord 6 therethrough.

The blind 9 constructed in this manner can be assembled into a state in which both the slats 3 and 4 are stacked horizontally as shown in FIG. 4 by operating the connecting cord 6 and pulling up the long side of the second slat 4. By lowering the long side and connecting it to the lower first slat 3, the same effect as in the first embodiment can be obtained. Note that the second slat 4 is covered with transparent tape 1.
Instead of 0, the first slat may be connected to the first slat using a connecting ring as in the first embodiment.

Next, a third embodiment embodying this invention will be explained with reference to FIGS. 6 to 8. The blind 13 of this embodiment is made of the same material as that of the previous embodiment on the weft thread 2a of the ladder cord 2. A first slat 3 is supported. The two second slats 4, which are also made of the same material as in the above embodiment, have their short side ends supported by connecting rings 5 on the short side ends of the first slat 3 located above them, and their long side ends. The sections are connected by independent connecting cords 6, and elongated holes 11 are formed to avoid the weft threads 2a.

The blind 13 constructed in this way can be assembled by operating the connecting cord 6 and pulling up the long side of the second slat 4, as shown in FIG. The second slat 4 is stacked horizontally, and from this state the connecting cord 6
7, or two second slats 4 as shown in FIG. 8. You can select one of the following states. Therefore, in addition to the effects of the first and second embodiments, this blind 13 can be achieved by selecting the number of second slats 4 that block between the first slats 3 and adjusting the amount of light transmitted into the room. This has the effect of being able to adjust the indoor illuminance and the brightness of the outdoor scenery seen through this blind 13. Note that the number of second slats 4 can be any number greater than or equal to two.

Next, a fourth embodiment embodying this invention will be described with reference to FIG. 9. In the blind 14 of this embodiment, the first slat 15 is made of an opaque material, and the second slat 4 is made of an opaque material. It is made of the same material as in the previous embodiment. A connecting cord for pulling up the second slat 4 in the horizontal direction is not provided, and the second slat 4 is supported at its short side end by the short side end of the first slat 3. It is always supported obliquely between the first slats 3.

The blind 14 configured in this manner allows the outdoor scenery to be seen through the second slat 4 even in the fully closed state shown in FIG. Since it faces downward, it prevents glare on the slat surface from indoor lighting equipment at night.

Further, in the fourth embodiment, the first slat 15
If you apply a matte finish to the top surface of the first slat 1
5 can be suppressed from reflecting sunlight indoors and outdoors, thereby preventing glare on the first slat 15 caused by sunlight.

Although the slats in each of the above embodiments are formed to have a chevron-shaped cross-section, this invention can also be implemented with a slat with a normal C-shaped cross-section, a flat plate-like slat, or a slat with other cross-sectional shapes. The slat may be flat and the second slat may be chevron-shaped.

Effects of the invention As detailed above, this invention exhibits an excellent effect in that it is possible to enjoy the outdoor scenery while keeping the blinds fully closed, and it also prevents glare from the slats caused by indoor lighting equipment.

[Brief explanation of the drawing]

Figure 1 is a perspective view of a blind embodying this invention, Figures 2 and 3 are longitudinal sectional views thereof,
4 and 5 are longitudinal sectional views showing a second embodiment embodying this invention, FIGS. 6 to 8 are longitudinal sectional views showing a third embodiment, and FIG. 9 is a longitudinal sectional view showing a fourth embodiment. FIG. 10 is a schematic diagram showing a conventional example related to this invention. Ladder cord 2, weft 2a, first slats 3, 15, second slats 4.

Claims (1)

[Scope of utility model registration request] A second slat 4 covers the gap between the first slats 3 and 15 in multiple stages supported horizontally on the weft 2a of the ladder cord 2.
This blind is made of a transparent material that partially transmits visible light, and is supported in an oblique manner with its lower surface facing indoors.