US3709583A - Covering device for skylights - Google Patents

Covering device for skylights Download PDF

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Publication number
US3709583A
US3709583A US00116853A US3709583DA US3709583A US 3709583 A US3709583 A US 3709583A US 00116853 A US00116853 A US 00116853A US 3709583D A US3709583D A US 3709583DA US 3709583 A US3709583 A US 3709583A
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United States
Prior art keywords
covering device
supporting frame
glass pane
lower glass
disposed
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Expired - Lifetime
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US00116853A
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English (en)
Inventor
H Pfannkuch
A Saxberger
F Schnebel
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Individual
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S11/00—Non-electric lighting devices or systems using daylight
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/03—Sky-lights; Domes; Ventilating sky-lights
    • E04D13/033—Sky-lights; Domes; Ventilating sky-lights provided with means for controlling the light-transmission or the heat-reflection, (e.g. shields, reflectors, cleaning devices)

Definitions

  • ABSTRACT 5" 350/260 A covering device for a skylight in a flat roof including s a f e ou i t e opening d ha ing
  • the frame is rotatable and can be tilted or the panels can be tilted to follow the relative UNITED STATES PATENTS movement of the 2,858,734 11/1958 Boyd ..350/260 13 Claims, 4 Drawing Figures PATENTEDJAN 9 ms 3.709.583
  • the present invention relates to a covering device for skylights, particularly in flat roofs of buildings, having triple reflector panels inclined with respect to the horizontal.
  • a covering means that is often used consists in lattices, that is, assemblies of panels impervious to light and adjustable in their angular position. But these lattices considerably reduce the entrance of light in the spaces to be protected inasmuch as they shut off not only the portion of light rays to be excluded but also the diffused light portion that in itself is not inconvenient and is desirable for lighting the room.
  • the present invention is based on the problem of protecting to a great extent against direct solar light and heat radiation in skylights, particularly in flat roofs of buildings, and yet admitting as great as possible a portion of diffused sunlight over a broad range of the reflector principle whereby light rays striking the exposed surface at particular angles of incidence are reflected three times within the discrete reflector elements and are subsequently discharged in a direction opposite and parallel to the incoming rays (see R.W. Pohl, Optik und Atomphysik, p.
  • One embodiment of the invention consists in that the supporting frame is mounted on horizontal rollers and is guided on its outer periphery by perpendicular rollers.
  • the supporting frame can be connected with a driving motor for the rotational movement about the central axis, with the driving motor either synchronized with the movement of the sun, or being designed as a stepping motor that effects a gradual rotative movement.
  • the supporting frame is adapted to be tilted on one side against the horizontal position, or the reflector panels in the supporting frame are adjustable in their inclination with respect to the horizontal position.
  • the supporting frame is disposed in a space between a lower glass pane and a dome, or saddle-shaped roof or other similar roof construction of clear, transparent material, it being possible that the space be sealed.
  • the lower glass pane can be constructed with a diffuser.
  • Another embodiment of the invention consists in that the space between the dome, or saddle-shaped roof or similar roof construction and the lower glass pane is sealed against moisture diffusion.
  • the reflector panels are synchronized with or gradually adjusted according to the movement of the sun so as to ensure the full effectiveness of the reflector structure at any time of the day.
  • the light transmittence despite the effective avoidance from direct light and heat radiation, is about percent higher than in hitherto commercially available clear and transparent materials that are about equivalent in heat protection.
  • the invention makes it possible to use completely transparent covers instead of the covers made partly impervious to light and heat such as lantern roofs, thus compensating extensively for the loss of direct light radiation for the illumination.
  • the lighting of the spaces covered with the device according to the invention will therefore always be of a diffuse, glare-free nature with high lighting power.
  • the invention makes it possible to plan and carry out the arrangement of skylights independently of the geographic location and of particular conditions of the plot of land inasmuch as it is no longer required to align certain parts of the cover, for instance, toward the north side as in the north-light roofs.
  • FIG. 1 is a diagrammatic side view of a covering device according to the invention, partly in section;
  • FIG. 2 is a top view of a supporting frame of the covering device with polished reflector panels diagrammatically illustrated.
  • FIG. 3 is a sectional view through the supporting frame along line IIIIII in FIG. 2;
  • FIG. 4 is a perspective view of a saddle-shaped roof construction with covering devices according to the invention.
  • FIG. 1 is diagrammatically illustrated in a side view, a supporting frame 1 having triple reflector panels 2 inclined against the horizontal.
  • the supporting frame 1 is circular and disposed in a corresponding circular skylight 3 of a flat roof 4.
  • the supporting frame is mounted on horizontally disposed rollers 5 and is guided along its periphery by means of perpendicularly disposed rollers 6.
  • the skylight 3 is sealed at its lower surface with respect to the inner side of the space by a glass pane 7 and is sealed upwardly by a dome 8 of transparent glass.
  • the glass pane 7 serves, together with the dome 8, to keep the reflector panels from becoming dusty.
  • the glass pane 7 can have a slight glaze or can be constructed with a diffuser to render ineffective the spectral decomposition of the light produced by the reflector.
  • the dome 8 must consist of a clear and transparent material to permit the unhindered and directed passage of the light that is then correspondingly reflected by the reflector panels.
  • the reflector panels 2 are disposed in the supporting frame 1 with an inclination to the horizontal line so that their reflecting action is always available from the lowermost to the uppermost position of the sun.
  • the difference of the declination of the sun can of course amount to as much as 45, as otherwise the reflector panels are no longer fully effective.
  • the declination of the sun in the region of the equator to the middle latitude is so high that this angle of 45 is exceeded. Therefore, means have been provided to lift the entire system on one side and thus adapt it to the position of the sun at the moment when the limit of effectiveness of the reflector panels rigidly disposed in the supporting frame is exceeded.
  • FIG. 1 the position of the supporting frame 1 that is lifted or tilted on one side with respect to the horizontal position is indicated by dotted lines.
  • Another possibility of adapting the reflector panels to the position of the sun when the declination is too high is to make the panels individually movable about their longitudinal axis and adjust them accordingly to the position of the sun so that the sun rays strike every time within the range of 22.5 at both sides of the line perpendicular to the flat side of the panels.
  • FIG. 2 a top view of the supporting frame with the reflector panels according to the invention.
  • the upper edge 9 of the supporting frame 1 is designed, at least on part of the periphery, as a toothed rim in which a pinion 10 is engaged.
  • the pinion 10 is driven by a driving motor 11. This driving motor can work so as to move the supporting frame 1 with the reflector panels synchronized with the movement of the sun, or
  • it can be constructed as a stepping motor that gradually moves the supporting frame so as always to ensure an angle of incidence of the sunlight of at most i- 22.5 in respect to the line perpendicular to the surface of the reflector panels.
  • FIG. 3 is shown a section through the supporting frame along line III-III in FIG. 2.
  • the arrangement of the reflector panels inclined against the horizontal can be clearly seen here.
  • FIG. 4 shows a saddle-shaped roof construction 12 on a flat roof 4 diagrammatically represented in perspective.
  • a shutter 14 having light openings 3 to each receive the supporting frome l with reflector panels 2 according to the invention.
  • the space between the dome 8 or saddle-shaped roof construction 12 and the lower glass pane 7 can be sealed against moisture diffusion so that a double glazing of the dome or of the roof construction can be avoided.
  • a modification of the rotating or tilting movement of the supporting frame lies in initially disposing the supporting frame in a plane inclined against the horizontal line as shown, for instance, by the dotted position of the supporting frame in FIG. 1.
  • the tilting capacity of the frame in operation can be eliminated when the rotating movement of the frame takes place about a central axis perpendicular to its plane of the frame with the central axis being inclined with respect to the roof position.
  • stantially horizontal roofs of buildings comprising a supporting frame mounted in the skylight, said frame having an upper surface disposed in a plane and a central axis of rotation perpendicular to the plane of said upper surface of the supporting frame; a plurality of individual, planar triple reflector panels parallely mounted in said frame, said panels being inclined with respect to the plane of the upper surface of the supporting frame; and means for rotating said frame about its said axis to follow the azimuth of the sun thereby confining the angle of incidence of the direct rays of the sunlight to within an approximate angle of i 22.5 with respect to a line perpendicular to the said planar reflector panels.
  • a covering device according to claim 1 in which the supporting frame for the triple reflector panels is circular.
  • a covering device according to claim 1 in which the supporting frame is mounted on horizontal rollers and guided on its external periphery by perpendicular rollers.
  • a covering device in which the supporting frame is connected with a driving motor for the rotational movement about the central axis.
  • a covering device in which the driving motor is a stepping motor.
  • a covering device in which the supporting frame is disposed in a space between a lower glass pane and a dome made of transparent material.
  • a covering device in which the supporting frame is disposed in a space between a lower glass pane and a saddle-shaped roof construction made of transparent material.
  • a covering device according to claim 1, wherein said central axis is disposed so as to be inclined with respect to the substantially horizontal position of the roof.
  • a covering device according to claim 1, wherein said supporting frame is disposed in said skylight in such a way as to be tiltably adjustable with respect to the substantially horizontal position of the roof.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Blinds (AREA)
US00116853A 1970-02-27 1971-02-19 Covering device for skylights Expired - Lifetime US3709583A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2009372A DE2009372C3 (de) 1970-02-27 1970-02-27 Abdeckvorrichtung für Lichtöffnungen

Publications (1)

Publication Number Publication Date
US3709583A true US3709583A (en) 1973-01-09

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US00116853A Expired - Lifetime US3709583A (en) 1970-02-27 1971-02-19 Covering device for skylights

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US (1) US3709583A (de)
DE (1) DE2009372C3 (de)

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4258702A (en) * 1975-07-28 1981-03-31 Halm Instrument Co., Inc. Vanes for solar heating
US4428358A (en) 1981-12-28 1984-01-31 Adamson James C Solar skylight
WO1986001611A1 (en) * 1984-09-06 1986-03-13 So-Luminaire Systems Corp. Combined solar tracking reflector and photovoltaic panel
US4773733A (en) * 1987-11-05 1988-09-27 John A. Murphy, Jr. Venetian blind having prismatic reflective slats
US4883340A (en) * 1988-08-02 1989-11-28 Solar Lighting Research, Inc. Solar lighting reflector apparatus having slatted mirrors and improved tracker
USD383855S (en) * 1996-06-06 1997-09-16 DayStar Sunlighting Systems, Inc. Combined reflector and skylight assembly
AU695004B1 (en) * 1997-03-31 1998-08-06 Takeshi Uchida Lighting device
USRE36496E (en) * 1988-11-22 2000-01-18 Solatube International, Inc. Skylight
US20030159364A1 (en) * 2002-02-28 2003-08-28 The Nasher Foundation Light transmission system and method for buildings
US20040231715A1 (en) * 2003-05-20 2004-11-25 Dan Pagel Method and apparatus attenuating direct sun light while providing a view of the sky through a light tunnel in a skylight system
US20070235021A1 (en) * 2006-03-15 2007-10-11 Stc.Unm Skylight/solar water heating apparatus
US7322156B1 (en) * 2002-07-12 2008-01-29 Solatube International, Inc. Skylight domes with reflectors
WO2009080026A1 (en) * 2007-12-20 2009-07-02 Vkr Holding A/S A weather shield and use of it for a skylight window
USD617008S1 (en) 2008-01-04 2010-06-01 Vkr Holding A/S Weather shield for skylight window
US20100179678A1 (en) * 2003-08-20 2010-07-15 Sunpower Corporation, Systems PV Wind Performance Enhancing Methods
US20120126098A1 (en) * 2009-07-31 2012-05-24 Bartenbacch Holding GmbH Light Guiding Device
US8307606B1 (en) 2011-07-07 2012-11-13 Solon Corporation Integrated photovoltaic rooftop modules
US8928981B2 (en) * 2011-10-25 2015-01-06 The University Of British Columbia Sunlight redirecting mirror arrays
WO2015188260A1 (en) * 2014-06-12 2015-12-17 SunCentral Inc. Light distribution systems and methods
US9263985B2 (en) 2012-11-13 2016-02-16 Pi Solar Technology Gmbh Rooftop photovoltaic modules
US9291371B1 (en) * 2010-09-27 2016-03-22 Gary M. Lauder Light-admitting heliostat
US9628019B1 (en) 2016-09-09 2017-04-18 Polar Racking Inc. Photovoltaic panel racking system
WO2015104028A3 (en) * 2014-01-09 2017-07-20 Science And Technology Development Fund (Stdf) Illumination of dense urban areas by light redirecting sine wave panels
US9909730B2 (en) * 2010-09-27 2018-03-06 Gary M. Lauder Processor-controlled light-admitting heliostat

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1341259A (en) * 1919-04-26 1920-05-25 Kirby Champeau Co Inc Skylight illuminating device
US2022144A (en) * 1932-05-28 1935-11-26 Communications Patents Inc Light conditioning and distribution system
US2858734A (en) * 1956-02-08 1958-11-04 Owens Illinois Glass Co Skylights
US2918023A (en) * 1955-01-27 1959-12-22 Bruce H Bettcher Reinforced, thermal insulating, condensation-proof and light admitting member
US2991697A (en) * 1956-04-10 1961-07-11 Arrow Metal Products Corp Inc Light-controlling window structure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1341259A (en) * 1919-04-26 1920-05-25 Kirby Champeau Co Inc Skylight illuminating device
US2022144A (en) * 1932-05-28 1935-11-26 Communications Patents Inc Light conditioning and distribution system
US2918023A (en) * 1955-01-27 1959-12-22 Bruce H Bettcher Reinforced, thermal insulating, condensation-proof and light admitting member
US2858734A (en) * 1956-02-08 1958-11-04 Owens Illinois Glass Co Skylights
US2991697A (en) * 1956-04-10 1961-07-11 Arrow Metal Products Corp Inc Light-controlling window structure

Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4258702A (en) * 1975-07-28 1981-03-31 Halm Instrument Co., Inc. Vanes for solar heating
US4428358A (en) 1981-12-28 1984-01-31 Adamson James C Solar skylight
WO1986001611A1 (en) * 1984-09-06 1986-03-13 So-Luminaire Systems Corp. Combined solar tracking reflector and photovoltaic panel
US4620771A (en) * 1984-09-06 1986-11-04 So-Luminaire Systems Corp. Combined solar tracking reflector and photovoltaic panel
US4773733A (en) * 1987-11-05 1988-09-27 John A. Murphy, Jr. Venetian blind having prismatic reflective slats
US4883340A (en) * 1988-08-02 1989-11-28 Solar Lighting Research, Inc. Solar lighting reflector apparatus having slatted mirrors and improved tracker
USRE36496E (en) * 1988-11-22 2000-01-18 Solatube International, Inc. Skylight
USD383855S (en) * 1996-06-06 1997-09-16 DayStar Sunlighting Systems, Inc. Combined reflector and skylight assembly
AU695004B1 (en) * 1997-03-31 1998-08-06 Takeshi Uchida Lighting device
US20030159364A1 (en) * 2002-02-28 2003-08-28 The Nasher Foundation Light transmission system and method for buildings
AU2003213656B2 (en) * 2002-02-28 2007-04-26 The Nasher Foundation Light transmission system and method for buildings
US7222461B2 (en) * 2002-02-28 2007-05-29 The Nasher Foundation Light transmission system and method for buildings
US7322156B1 (en) * 2002-07-12 2008-01-29 Solatube International, Inc. Skylight domes with reflectors
US20040231715A1 (en) * 2003-05-20 2004-11-25 Dan Pagel Method and apparatus attenuating direct sun light while providing a view of the sky through a light tunnel in a skylight system
US7352509B2 (en) 2003-05-20 2008-04-01 Dan Pagel Method and apparatus attenuating direct sun light while providing a view of the sky through a light tunnel in a skylight system
US20100179678A1 (en) * 2003-08-20 2010-07-15 Sunpower Corporation, Systems PV Wind Performance Enhancing Methods
US20070235021A1 (en) * 2006-03-15 2007-10-11 Stc.Unm Skylight/solar water heating apparatus
WO2009080026A1 (en) * 2007-12-20 2009-07-02 Vkr Holding A/S A weather shield and use of it for a skylight window
USD617008S1 (en) 2008-01-04 2010-06-01 Vkr Holding A/S Weather shield for skylight window
USD617007S1 (en) 2008-01-04 2010-06-01 Vkr Holding A/S Skylight window and weather shield
US20120126098A1 (en) * 2009-07-31 2012-05-24 Bartenbacch Holding GmbH Light Guiding Device
US8723092B2 (en) * 2009-07-31 2014-05-13 Bartenbach Holding Gmbh Light guiding device
US9291371B1 (en) * 2010-09-27 2016-03-22 Gary M. Lauder Light-admitting heliostat
US9909730B2 (en) * 2010-09-27 2018-03-06 Gary M. Lauder Processor-controlled light-admitting heliostat
US8307606B1 (en) 2011-07-07 2012-11-13 Solon Corporation Integrated photovoltaic rooftop modules
US8316619B1 (en) 2011-07-07 2012-11-27 Solon Corporation Integrated photovoltaic rooftop modules
US8316618B1 (en) 2011-07-07 2012-11-27 Solon Corporation Integrated photovoltaic rooftop modules
US8336277B1 (en) 2011-07-07 2012-12-25 Solon Corporation Integrated photovoltaic rooftop modules
US8928981B2 (en) * 2011-10-25 2015-01-06 The University Of British Columbia Sunlight redirecting mirror arrays
US9263985B2 (en) 2012-11-13 2016-02-16 Pi Solar Technology Gmbh Rooftop photovoltaic modules
WO2015104028A3 (en) * 2014-01-09 2017-07-20 Science And Technology Development Fund (Stdf) Illumination of dense urban areas by light redirecting sine wave panels
WO2015188260A1 (en) * 2014-06-12 2015-12-17 SunCentral Inc. Light distribution systems and methods
US9964269B2 (en) 2014-06-12 2018-05-08 The University Of British Columbia Light distribution systems and methods
US9628019B1 (en) 2016-09-09 2017-04-18 Polar Racking Inc. Photovoltaic panel racking system
US9800201B1 (en) 2016-09-09 2017-10-24 Polar Racking Inc. Photovoltaic panel racking system

Also Published As

Publication number Publication date
DE2009372C3 (de) 1974-02-28
DE2009372A1 (de) 1972-02-10
DE2009372B2 (de) 1973-07-19

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