Sun protection installation comprising sun protection lamellae having a toothed upper side

• US 6,367,937 B2
• Filed: 12/09/1998
• Issued: 04/09/2002
• Est. Priority Date: 12/09/1997
• Status: Expired due to Term

• Current Assignee: K{haeck over (o)}ster, Helmut
• Original Assignee: K{haeck over (o)}ster, Helmut
• Inventors: K{haeck over (o)}ster, Helmut
• Primary Examiner(s): Spyrou, Cassandra
• Assistant Examiner(s): Robinson, Mark A.
• Application Number:
  US09/207,789
• Publication Number:
  US 20020008915A1
• Time in Patent Office: 1,217 Days
• Field of Search: 359/601, 359/610, 359/613, 359/591, 359/596, 160/34, 160/166.1, 160/178.1
• US Class Current: 359/601
• CPC Class Codes: E06B 9/386 Details of lamellae

Abstract

The invention relates to sun protection installations comprising reflective sun protection lamellae consisting of portions having a toothed upper side disposed at least towards sun radiation influx wherein the individual teeth are formed of at least two tooth sides, and at least one first tooth side is, at least partly, exposed to sun light irradiation. Sun light irradiation, at least within the first lamella portions, can be retro-reflected by one single reflection into the outer space by the first tooth side having an angle of impact α₁. The tooth angle of impact α₁ of the tooth sides exposed to the sun light are so selected within the first lamella portions facing the irradiation area that in case of parallel sun light larger angles of impact β of the sun radiation are obtained so that inciding sun light may be reflected back, by one single reflection, to the outer space. Second or further lamella portions are so arranged at an angle α₁ that small angles of impact β on the tooth sides facing the sun will result but the sun light can be reflected into the interior space In any case, tooth angles of impact α₁ within the lamellae differ from each other.

Claims

1. Sun protection installations comprising reflective sun protection lamellae (10, 11, 12, 35, 36, 37, 38, 39, 40, 42, 63, 64, 84, 85), first lamellae portions (60, 75, 86, 91, 95) oriented to an outside and second lamellae portions (61, 76, 81, 88, 93, 96) oriented to an inside, comprising:

a) portions having teeth with an upper side disposed at least towards sun irradiation influx, wherein

b) individual teeth (13, 14, 15, 16, 66, 67, 68, 69, 70, 71, 72, 77, 78, 79, 80, 81) are formed of an essentially sun-irradiated tooth side (17, 18, 19, 20) and an essentially shaded tooth side (21, 22, 23),

c) at least one sun-irradiated tooth side (17, 18, 93, 94) is arranged, when said reflective sun protection lamellae are in a horizontal position, at an angle α

₁ to the horizontal and is at least partially subjected to direct sun light irradiation (25, 26),

d) tooth angles α

₁ of sun-irradiated tooth sides (17, 18) are selected to be steeper within said first lamellae portions (60, 75, 86, 91, 95) and are selected to be more flat within said second lamella portions (61, 76, 87, 88, 93, 96),

e) sun light irradiation (22, 23), at least within the first lamellae portions (60, 75, 86, 91, 95), can be retro-reflected from the sun-irradiated tooth side (17, 18) by one single reflection to said outside of the reflective sun protective lamellae, and

f) at least within the first lamellae portions, α

₁ is chosen smaller than tooth angles α

₂ of the shaded tooth side for said horizontal position of the lamellae.

2. Sun protection installations according to claim 1, characterised in that the angles α

₁ of the sun-irradiated tooth sides (17, 18) essentially increase with increasing distance from the irradiation side.

3. The sun protection installations according to claim 1, characterised in that at least within said first lamellae portions (60, 76, 86, 91, 95), the tooth angles α

₂ of said shaded tooth side (22, 19, 21) of the individual teeth (13, 14, 15, 16, 66, 67, 68, 69, 70, 71, 72, 77, 78, 79, 80, 81) decrease starting from the sun-irradiated side of the lamellae and are arranged at an angle of 90°

>

α

_2>

30°

relative to the horizontal.

4. The sun protection installations according to claim 1, characterised in that the first lamellae portions (91, 95) comprise at least one tooth.

5. Sun protection installations according to claim 1, characterised in that lamellae (84, 86) consist of three, or more, portions (91, 92, 93, 86, 87, 88) wherein at least the first portion (86, 91) is formed tooth-shaped for retro-reflection of the inciding sun irradiation, at least one further portion (87, 92) is formed area-shaped and for light deflection into the interior space and at least the third portion (86, 93) disposed towards the interior space is formed tooth-shaped and for steep light deflection to the interior space ceiling.

6. Sun protection installations according to claim 1, characterised in that at least one portion (93) disposed nearest to the interior space is provided on the underside, at least partly, as a light reflector for artificial light and has an angle of inclination σ

of from 10°

-40° and

that at least underneath of parts of said sun protection installation in the interior space punctiform or strip-shaped artificial light sources are arranged and light indirectly emanating therefrom and inciding from below into said sun protection installation is reflected, according to DIN 5035, essentially at an angle γ

, at least by parts of portion (93) disposed nearest to the interior space, and glare limitation according to grade A. 1, 2, of DIN 5035, part 2, part 3, and part 4 is observed.

7. Sun protection installation according to claim 1, characterised in that lamellae of different tooth formation are arranged, at least within the second or further portions (92 and 93, 95 and 96), one under the other, wherein lamellae in the upper window area, at a minimum height of approximately 1.70 m headroom, have at least an angle of inclination of ±

5°

relative to the horizontal and by which light radiation can be deflected at an angle σ

<

45°

relative to the horizontal into the interior space, and that in the lower window area lamellae are arranged with portions 96 oriented towards the interior space which include exclusively receptor faces at an angle of inclination >

25>

relative to the horizontal and that sun light radiation inciding on it is deflected at an angle of σ

>

45 to the ceiling.

8. Sun protection installations according to claim 7, characterised in that teeth of identical and/or different sun protection lamellae form V-shaped structures within one curtain (FIG. 13).

9. Sun protection installations according to claim 1, characterised in that the lamellae include teeth on the underside thereof, wherein the long portion (50 to 53) of the teeth faces day light irradiation and the short side of the teeth (54 to 56) faces the interior space.

10. Sun protection installations according to claim 1, characterised in that teeth of said first lamella portions (60, 75, 86, 91, 95) exposed to sun irradiation influx each have a width b of <

3 mm and the thickness d of the sun protection lamella is <

3 mm.

11. Sun protection installations according to claim 1, characterised in that said sun protection lamellae are orthogonally penetrated by further toothed lamellae and form a raster element.

12. Sun protection installations according to claim 1, characterised in that said sun protection lamellae are covered, at least on the upper side, by a light permeable layer.

13. Production of sun protection installations according to claim 1, characterised in that said sun protection lamellae are produced from transparent plastic material having a smooth upper surface and the reverse side is tooth-shaped and made reflective by metal vapour deposition or foil covering.

14. Production of sun protection installations according to claim 1, characterised in that said sun protection lamellae are produced as individual lamellae by thermal softening of a plane plastic material plate and said plates are inserted by vacuum process into a counter mould and solidified in profile shape, wherein said plates are covered prior to heat deformation with reflective foils and by said heat deformation are solidly unified with said plates.

15. Production of sun protection installations according to claim 1, characterised in that said lamellae are covered by a plastic film in that they are inserted into a plastic hose and the film is shrunk on by a thermal process.

16. Sun protection installations according to claim 1, characterised in that said sun protection lamellae have a smooth surface and form a raster element.

17. Sun protection installations according to claim 1, characterised in that said sun protection lamellae are cast in a light permeable plastic material.

18. Production of sun protection installations according to claim 1, characterised in that said sun protection lamellae are produced as plate-shaped lamellae structure by thermal softening of a plane plastic material plate and said plates are inserted by a mould stamp into a counter mould and solidified in profile shape, wherein said plates are covered prior to heat deformation with reflective foils and by said heat deformation are solidly unified with said plates.

19. Production of sun protection installations according to claim 1, characterised in that said sun protection lamellae are produced as individual lamellae by thermal softening of a plane plastic material plate and said plates are inserted by a mould stamp into a counter mould and solidified in profile shape, wherein said plates are covered prior to heat deformation with reflective foils and by said heat deformation are solidly unified with said plates.

20. Production of sun protection installations according to claim 1, characterised in that said sun protection lamellae are produced as plate shaped lamellae structure by thermal softening of a plane plastic material plate and said plates are inserted by vacuum process into a counter mould and solidified in profile shape, wherein said plates are covered prior to heat deformation with reflective foils and by said heat deformation are solidly unified with said plates.

21. Sun protection installations comprising reflective sun protection lamellae (10, 11, 12, 35, 36, 37, 38, 39, 40, 42, 63, 64, 84, 85) comprising:

a) portions having teeth with an upper side disposed at least towards sun irradiation influx, wherein

b) individual teeth (13, 14, 15, 16, 66, 67, 68, 69, 70, 71, 72, 77, 78, 79, 80, 81) are formed of an essentially sun-irradiated tooth side (17, 18, 19, 20) and an essentially shaded tooth side (21, 22, 23),

c) at least one sun-irradiated tooth side (17, 18, 93, 94) is arranged, when said reflective sun protection lamellae are in a horizontal position, at an angle α

₁ too the horizontal and is at least partially subjected to direct sun light irradiation (25, 26),

d) tooth angles α

₁ of sun-irradiated tooth sides (17, 18) are selected to be steeper within first lamellae portions (60, 75, 86, 91, 95) and are selected to be more flat within further lamellae portions (61, 76, 87, 88, 93, 96),

e) sun light irradiation (22, 23), at least within the first lamellae portions (60, 75, 86, 91, 95), can be retro-reflected from the sun-irradiated tooth side (17, 18) by one single reflection to outside of the reflective sun protective lamellae,

f) at least within the first lamellae portions, α

₁ is chosen smaller than tooth angles α

₂ of the shaded tooth side for said horizontal position of the lamellae, and

g) in the horizontal position said tooth angles α

₁ of said first potions (60, 75, 86, 91, 95) are formed >

25°

relative to the horizontal and that angles β

on further lamellae portions (61, 76, 87, 88, 92, 93, 96) are so formed that rays penetrating into the interior space may be deflected at an angle >

0 to horizontal H by one single reflection.

22. Sun protection installation comprising:

a) portions having teeth with an upper side disposed at least towards sun irradiation influx, wherein

b) individual teeth (13, 14, 15, 16, 66, 67, 68, 69, 70, 71, 72, 77, 78, 79, 80, 81) are formed of an essentially sun-irradiated tooth side (17, 18, 19, 20) and an essentially shaded tooth side (21, 22, 23),

c) at least one sun-irradiated tooth side (17, 18, 93, 94) is arranged, when said reflective sun protection lamellae are in a horizontal position, at an angle α

₁ to the horizontal and is at least partially subjected to direct sun light irradiation (25, 26),

d) tooth angles α

₁ of sun-irradiated tooth sides (17, 18) are selected to be steeper within first lamellae portions (60, 75, 86, 91, 95) and are selected to be more flat within further lamellae portions (61, 76, 87, 88, 93, 96),

e) sun light irradiation (22, 23), at least within the first lamellae portions (60, 75, 86, 91, 95), can be retro-reflected from the sun-irradiated tooth side (17, 18) by one single reflection to outside of the reflective sun protective lamellae,

f) at least within the first lamellae portions, α

₁ is chosen smaller than tooth angles α

₂ of the shaded tooth side for said horizontal position of the lamellae, and

g) disposed towards an outer space in front of said first portions (60, 75, 86, 91, 95) is a receptor reflector arranged at an angle α

₂ of >

0° and

by which zenith radiation can be reflected into an interior space.