The present application relates generally to an attachment system and more particularly to a solar panel securing system for a building.
Conventional photovoltaic or solar panels are mounted to roofs of buildings through screw-in clips or the like. Examples of such conventional devices are disclosed in U.S. Patent Publication No. 2011/0088740 entitled “Photovoltaic Panel Clamp” which published to Mittan et al. on Apr. 21, 2011, and U.S. Pat. No. 6,672,018 entitled “Solar Module Mounting Method and Clip” which issued to Shingleton on Jan. 6, 2004, both of which are incorporated by reference herein. Such conventional methods cause the installer to juggle many loose fasteners while simultaneously holding heavy solar panels and/or roof mounting components, often on a tilted metal roof in unpleasant weather conditions. Furthermore, such traditional multi-piece screw or bolt arrangements take considerable time to install while also having inconsistent installation torque values, especially in the common situation where many of these solar panel mounting devices are required for each roof.
Other traditional constructions use heavy metal roof hooks that are mounted by driving screws through the roof into underlying studs. A raised arm of these roof hooks is screwed or bolted to an elongated roof rail or to a frame surrounding a peripheral edge of a solar panel. This leads to roof leaks and is clumsy to install. Additionally, peripheral frames add undesireable cost and weight to the solar panel assembly, and make them more difficult to raise onto a building roof.
In accordance with the present invention, a solar panel securing system is provided. In another aspect, a solar photovoltaic panel assembly is mounted to a building roof in a screw-free manner. Another aspect employs a snap-in connection between a member pre-assembled to a solar panel and a roof-mounted fastening bracket. A further aspect adhesively bonds a bracket directly to a glass surface of a solar panel so that the expense and weight of a peripheral solar panel frame are avoided. Pivoting of one side of a solar panel relative to a roof rail is also employed to assist in ease of installation. A method of securing a solar panel is additionally provided.
The present solar panel securing system is advantageous over traditional devices. For example, in one aspect, a simplified installation motion is employed to engage an auxiliary component, such as a photovoltaic panel assembly, with a mounting hook and/or snap-in tab. In an aspect of the present system, a solar panel is quickly and easily secured to a building roof in a fast manner without requiring the installer to juggle multiple parts such as screws. In another aspect, a fastening bracket is very inexpensive to manufacture. Furthermore, a section of the present system is pre-assembled upon a building roof via an easy to install roof clamp and rail, and another mating section is pre-assembled to the solar panel, prior to assembly of the solar panel assembly to the fastening system. An aspect of the fastening bracket of the present securing system ideally allows for tolerance variations and part expansion. Moreover, an aspect allows for use of a frameless glass solar panel thereby reducing part cost and weight. Additional advantageous and features of the present invention will become apparent in the following description and appended claims, taking in conjunction with the accompanying drawings.
Referring to
Saddle 51, wedge 53, shaft 55, the spring and optionally fastening bracket 43 are pre-assembled prior to placing roof clamp 41 in the proximity of rail flange 25. “Pre-assembled” for the clamp refers to the components being attached as a single unit such that shaft 55, and optionally a very loose engagement of nut 57 (so as to provide lost motion movement of the spring and wedge relative to the saddle), keep them attached together. This can be achieved either on the ground near the work site, at a remote site, or at the factory in which roof clamp 41 is manufactured. When wedge 53 is retracted to trap flange 25 between an inner foot of the wedge and the inner opening edge of saddle 51, a portion of shaft 55 extends beyond the top surface of saddle 51 such that the proximal threaded end of shaft 55 also provides an attachment point for fastening bracket 43 and nut 57. The roof clamp preferably attaches to the rail flange due to lateral compression of the wedge but without flange piercing or side-mounted threaded screws. Alternately, the rails and flanges can be replaced by a turned standing seam where metal roof section are joined together.
Each hinge bracket 45 has a pair of generally triangularly shaped side plates 71 joined by a top plate 73 spanning therebetween. A pivot pin 75 also bridges between lower corners of side plates 71. A Raybond™ brand polyurethane adhesive is used to directly attach top plate 73 to a bottom surface of the solar panel glass. The assembly is preferably done off-site before the solar panel is raised onto the building roof. Hinge brackets 45 can be made from stamped metal or an injection molded polymer.
Referring now to
Fastening bracket 43 and hinging brackets 45 advantageously provide a pivoting fastening motion for the solar panel 31 shown to the right of
Finally, an alternate embodiment catch or fastening bracket 143 is shown in
While various aspects of the present fastening system have been disclosed, it should be appreciated that modifications can be made. For example, the present accessory mounting brackets or catches can be secured to conventional roof clamps such as those disclosed in the following U.S. Pat. Nos.: 7,758,011 entitled “Adjustable Mounting Assembly for Standing Seam Panels” which issued to Haddock on Jul. 20, 2010; U.S. Pat. No. 7,386,922 entitled “Snow-Guard Clamping Unit” which issued to Taylor et al. on Jun. 17, 2008; and U.S. Pat. No. 5,715,640 entitled “Mounting Device for Controlling Uplift of a Metal Roof” which issued to Haddock on Feb. 10, 1998; except many of the present advantages will not be realized. These patents are incorporated by reference herein. Moreover, more or less hooks and additional locking tabs can be attached to a single bracket although some of the present advantages may not be obtained. Furthermore, the brackets can be injection molded from a polymer, cast from aluminum, or otherwise differently manufactured, however, various advantages may not be achieved. The roof rail can also have a different shape and be alternately secured to the roof although certain advantages may not be observed. A peripheral frame on the solar panel can be attached to the snap-in tab and/or hooks instead of the pivot pin, however, various advantages may not be achieved. The fastening bracket can be alternately mounted directly to the rail or building although some advantages may be missed. Individual elements or features of a particular embodiment are generally not limited to that particular embodiment, but, where applicable, are interchangeable and can be used in a selected embodiment, even if not specifically shown or described. Such variations are not to be regarded as a departure from the disclosure, and all such modifications are intended to be included within the scope of the present invention.
Number | Name | Date | Kind |
---|---|---|---|
3757268 | Genovese et al. | Sep 1973 | A |
3998018 | Hodges | Dec 1976 | A |
4042201 | O'Callaghan | Aug 1977 | A |
4094485 | O'Callaghan | Jun 1978 | A |
4106251 | Nelsson | Aug 1978 | A |
4113982 | Glaesel | Sep 1978 | A |
4189881 | Hawley | Feb 1980 | A |
4195895 | Ziegler | Apr 1980 | A |
4215677 | Erickson | Aug 1980 | A |
4225265 | Hooker et al. | Sep 1980 | A |
4256359 | Storck | Mar 1981 | A |
4406505 | Avramovich | Sep 1983 | A |
4833848 | Guerin et al. | May 1989 | A |
4875876 | O'Loughlin | Oct 1989 | A |
5092939 | Nath et al. | Mar 1992 | A |
5232518 | Nath et al. | Aug 1993 | A |
5409549 | Mori | Apr 1995 | A |
5419606 | Hull et al. | May 1995 | A |
5571338 | Kadonome et al. | Nov 1996 | A |
5715640 | Haddock | Feb 1998 | A |
5762720 | Hanoka et al. | Jun 1998 | A |
5823495 | Joss et al. | Oct 1998 | A |
6003724 | Collins et al. | Dec 1999 | A |
6105317 | Tomiuchi et al. | Aug 2000 | A |
6111189 | Garvison et al. | Aug 2000 | A |
6123314 | Steele | Sep 2000 | A |
6186698 | Knapp | Feb 2001 | B1 |
6269596 | Ohtsuka et al. | Aug 2001 | B1 |
6370828 | Genschorek | Apr 2002 | B1 |
6405494 | Wismeth | Jun 2002 | B1 |
6414237 | Boer | Jul 2002 | B1 |
6495750 | Dinwoodie | Dec 2002 | B1 |
6501013 | Dinwoodie | Dec 2002 | B1 |
6534703 | Dinwoodie | Mar 2003 | B2 |
6570084 | Dinwoodie | May 2003 | B2 |
6616106 | Dean et al. | Sep 2003 | B1 |
6672018 | Shingleton | Jan 2004 | B2 |
6784360 | Nakajima et al. | Aug 2004 | B2 |
6809253 | Dinwoodie | Oct 2004 | B2 |
6959517 | Poddany et al. | Nov 2005 | B2 |
7195513 | Gherardini et al. | Mar 2007 | B1 |
7217058 | Herb | May 2007 | B2 |
7260918 | Liebendorfer | Aug 2007 | B2 |
7297866 | Aschenbrenner | Nov 2007 | B2 |
7386922 | Taylor et al. | Jun 2008 | B1 |
7435134 | Lenox | Oct 2008 | B2 |
7592537 | West | Sep 2009 | B1 |
7600349 | Liebendorfer | Oct 2009 | B2 |
7621487 | Brown et al. | Nov 2009 | B2 |
7634875 | Genschorek | Dec 2009 | B2 |
7745722 | Warfield et al. | Jun 2010 | B2 |
7748175 | Liebendorfer | Jul 2010 | B2 |
7758011 | Haddock | Jul 2010 | B2 |
7766292 | Liebendorfer | Aug 2010 | B2 |
7780472 | Lenox | Aug 2010 | B2 |
7797883 | Tarbell et al. | Sep 2010 | B2 |
7866099 | Komamine et al. | Jan 2011 | B2 |
7915519 | Kobayashi | Mar 2011 | B2 |
7921607 | Thompson et al. | Apr 2011 | B2 |
7971398 | Tweedie | Jul 2011 | B2 |
7987641 | Cinnamon | Aug 2011 | B2 |
8025508 | Parker et al. | Sep 2011 | B2 |
8109048 | West et al. | Feb 2012 | B2 |
8156697 | Miros et al. | Apr 2012 | B2 |
8191320 | Mittan et al. | Jun 2012 | B2 |
8245460 | Yamanaka et al. | Aug 2012 | B2 |
8266848 | Miros et al. | Sep 2012 | B2 |
8387319 | Gilles-Gagnon et al. | Mar 2013 | B1 |
8397448 | Brown et al. | Mar 2013 | B2 |
8413944 | Harberts et al. | Apr 2013 | B2 |
8590223 | Kilgore et al. | Nov 2013 | B2 |
20030101662 | Ullman | Jun 2003 | A1 |
20030177706 | Ullman | Sep 2003 | A1 |
20060156648 | Thompson et al. | Jul 2006 | A1 |
20080035140 | Placer et al. | Feb 2008 | A1 |
20080053517 | Plaisted et al. | Mar 2008 | A1 |
20080245404 | DeLiddo | Oct 2008 | A1 |
20080257402 | Kamp et al. | Oct 2008 | A1 |
20090019795 | Szacsvay et al. | Jan 2009 | A1 |
20090019796 | Liebendorfer | Jan 2009 | A1 |
20090025314 | Komamine et al. | Jan 2009 | A1 |
20090114269 | Fletcher et al. | May 2009 | A1 |
20090242014 | Leary | Oct 2009 | A1 |
20100154784 | King et al. | Jun 2010 | A1 |
20100180933 | Aftanas et al. | Jul 2010 | A1 |
20100192505 | Schaefer et al. | Aug 2010 | A1 |
20100236162 | Tweedie | Sep 2010 | A1 |
20100236542 | Pierson et al. | Sep 2010 | A1 |
20100243023 | Patton et al. | Sep 2010 | A1 |
20100263297 | Liebendorfer | Oct 2010 | A1 |
20100276558 | Faust et al. | Nov 2010 | A1 |
20100282290 | Schwarze et al. | Nov 2010 | A1 |
20110036028 | Beck | Feb 2011 | A1 |
20110039430 | Aftanas | Feb 2011 | A1 |
20110073155 | Sillmann et al. | Mar 2011 | A1 |
20110088740 | Mittan et al. | Apr 2011 | A1 |
20110100433 | Jonczyk | May 2011 | A1 |
20110126881 | Hong et al. | Jun 2011 | A1 |
20110138585 | Kmita et al. | Jun 2011 | A1 |
20110147553 | Ostermeier et al. | Jun 2011 | A1 |
20110179606 | Magno, Jr. et al. | Jul 2011 | A1 |
20110203637 | Patton et al. | Aug 2011 | A1 |
20110214366 | Haddock et al. | Sep 2011 | A1 |
20110232212 | Pierson et al. | Sep 2011 | A1 |
20110284058 | Cinnamon | Nov 2011 | A1 |
20120198779 | Tachino | Aug 2012 | A1 |
20120199181 | Newman et al. | Aug 2012 | A1 |
20120298817 | West et al. | Nov 2012 | A1 |
20130091786 | DuPont et al. | Apr 2013 | A1 |
20130102165 | DuPont | Apr 2013 | A1 |
Number | Date | Country |
---|---|---|
9409453 | Aug 1994 | DE |
102010022556 | Jun 2011 | DE |
0671581 | Sep 1995 | EP |
2163787 | Jul 1973 | FR |
2209024 | Jun 1974 | FR |
423385 | Jan 1935 | GB |
1218275 | Jan 1971 | GB |
1510258 | May 1978 | GB |
60050348 | Mar 1985 | JP |
7243428 | Sep 1995 | JP |
10266499 | Oct 1998 | JP |
10339008 | Dec 1998 | JP |
102011011641 | Oct 2011 | KR |
8304155 | Jul 1985 | NL |
WO-8301476 | Apr 1983 | WO |
WO-9816699 | Apr 1998 | WO |
WO-2010149278 | Dec 2010 | WO |
WO-2012014203 | Feb 2012 | WO |
Entry |
---|
A Raymond drawing entitled “Solar clip Specific part”; Part No. 214803-1-00, for non-grounding clip shown in Solardis brochure; 1 page (believed to have been offered for sale in U.S. or published on or before Jul. 7, 2010). |
altEstore; Internet Advertisement Publication; “Groundings Lugs With Set Screw”; www.altestore.com; Aug. 25, 2011. |
Conergy Heavy Snow Roof Hook—20 Units; Internet publication; www.ecodirect.com; Oct. 4, 2011; 2 pages. |
Conergy Sun Top CMS-10057 Double Roman Tile Roof Hook—20 pack; Internet publication; www.ecodirect.com; Oct. 4, 2011; 2 pages. |
Conergy Sun Top CMS-10059 Flat Tile Roof Hook—20 pack; Internet publication; www.ecodirect.com; Oct. 4, 2011; 2 pages. |
Rayvolt; Internet Advertisement Publication; “Panel fasteners”; Raygroup; May 2011. |
Solar Stainless Steel Roof Hook; Internet publication; www.alibaba.com; Oct. 4, 2011; 2 pages. |
Solardis; Brochure; “soprasolar fix”; www.soprasolar.com; Jul. 7, 2010; pp. 1-10. |
Stainless Steel Hook Solar Panel Roofing Hook; Internet publication; www.alibaba.com; Oct. 4, 2011; 1 page. |
Stainless Steel Hook Solar Panel Roofing Hook; Internet publication; www.alibaba.com; Oct. 4, 2011; 2 pages. |
Stainless Steel Hook Solar Panel Roofing Hook; Internet publication; www.alibaba.com; Oct. 4, 2011; 3 pages. |
Stainless Steel Tin Roof Hook SS Tin Hook; Internet publication; www.alibaba.com; Oct. 4, 2011; 2 pages. |
Number | Date | Country | |
---|---|---|---|
20130192150 A1 | Aug 2013 | US |