The invention relates to suspended ceilings and, in particular, to improvements in gridless type suspended ceilings.
U.S. Pat. No. 6,763,641 discloses a suspended ceiling construction that uses non-rectangular planks or metal pans butted together at their edges and supported directly by overhead suspension wires. Some overhead structures or super-structures make it difficult to hang suspension wires, particularly when such wires are required on specific overhead centers. When the suspended ceiling is a so-called free-form type and does not have a rectangular or an otherwise regular pattern, the layout of the anchor points for the suspension wires is difficult and can be extremely time consuming. Typically, a convenient anchor point will not lie directly above a location where a ceiling panel is designed to receive a wire. This condition can tax the skill and patience of the installer in an effort to find the best compromise to avoid shifting and/or distortion of the ceiling panels because of the side forces developed by angled suspension wires.
The invention provides a system for quickly and accurately suspending free-form ceiling panels. The system relies on a novel clip for connecting the panels to a set of overlying channels. The channels are situated in a plane just above the plane in which the ceiling panels are to be hung. With the channels suitably in place, the clips are assembled on the channels. The illustrated clips are readily installed and locked onto the channels without the need for separate fasteners or tools. Once the clips are assembled on the channels, the ceiling panels can be hung on the clips and thereby be suspended by the channels. The clips preferably have bendable tabs that, when deployed, lock the panels against accidental or unauthorized vertical movement and consequent separation from the clips.
In one embodiment of the clip, a panel engaging hook is pivotally connected to upper portions of the clip. The pivot connection allows the hook to be twisted about a vertical axis to an angle that matches the angle between the edge of the panel to be supported and the respective channel.
Referring now to the drawings and, in particular, to
The lower part 12 of the clip body has a vertical web 26 and an integral horizontal flange 27. Bent upwardly from a lower edge of the web 26 is a generally upstanding flange or hook 28 having a free edge 29. The vertical web 26 of the lower body part 12 has slots 30 at its vertical edges to form tabs 31 at these edges. Holes 32 associated with an inner end of the tabs 31 reduce the strength of the web along bend lines 33 created between the holes and tab forming slots 30.
The clip 10 can be mounted on a conventional cold rolled steel channel 36. Such channels are used in the trade and are typically 1½″ in nominal web width. The width of the channel flanges may be ⅜″, 7/16″, or 5/16″ or a similar dimension. In use, the channel web 37 is ordinarily positioned in a vertical plane. The clip 10 is installed on the channel 36 by tilting it to enable the lip 24 to enter the interior of the channel 36 and catch on the lower flange, designated 38 of the channel and then by swinging the body of the clip so that it is upright and the web 16 of the top section 14 abuts or is closely adjacent and parallel to the channel web 37. With the clip in this upright position, the distal part 35 of the horizontal top section 14 beyond the bend line 21 is bent down around the upper flange, designated 39 of the channel 36 to lock the clip 10 on the channel.
With reference to
An edge portion 41 of the panel 42 is illustrated in phantom in
A lower part of the body of the clip 50 is slotted at 58 from opposite edges to form oppositely extending locking tabs 59. Holes 61 are formed at the inner ends of the locking tabs to create bend lines in the remaining areas of the clip body between the holes 61 and end of the slots 58. A panel 42 is installed by positioning the inverted channel 44 of the panel on the hook 52. The panel 42 can be locked against unwanted removal from its installed position by bending the tabs 59 out of their original plane and over the adjacent areas of the inverted channel 44 in essentially the same manner as described in connection with the clip of
The clip 50 is used in essentially the same way as that described in connection with the clip 10 in situations where there is limited deviation from a perpendicular relation between a panel edge 43 carrying the inverted channel 44 and the supporting channels 36. The horizontal width of the rectangular cutout 56 can be made somewhat oversize in relation to the width of the channel flanges 38, 39 so as to allow the clip 50 to be turned out of square with the channel and accommodate a deviation of the panel edges 43 from an exactly transverse condition.
While the invention has been shown and described with respect to particular embodiments thereof, this is for the purpose of illustration rather than limitation, and other variations and modifications of the specific embodiments herein shown and described will be apparent to those skilled in the art all within the intended spirit and scope of the invention. Accordingly, the patent is not to be limited in scope and effect to the specific embodiments herein shown and described nor in any other way that is inconsistent with the extent to which the progress in the art has been advanced by the invention.
Number | Name | Date | Kind |
---|---|---|---|
2307653 | Wright | Jan 1943 | A |
2586327 | Haertel | Feb 1952 | A |
2631809 | Jacobson | Mar 1953 | A |
3233297 | Havener | Feb 1966 | A |
3558091 | Bush | Jan 1971 | A |
3608857 | Hibbeler | Sep 1971 | A |
4047353 | Aarons | Sep 1977 | A |
4723749 | Carraro et al. | Feb 1988 | A |
4905952 | Pinquist | Mar 1990 | A |
5029425 | Bogataj | Jul 1991 | A |
5335890 | Pryor et al. | Aug 1994 | A |
6260810 | Choi | Jul 2001 | B1 |
6763641 | Ahren et al. | Jul 2004 | B1 |
6904730 | Mitchell | Jun 2005 | B2 |
7219863 | Collett, II | May 2007 | B1 |
20040172907 | Krantz-Lilenthal et al. | Sep 2004 | A1 |
Number | Date | Country | |
---|---|---|---|
20070101670 A1 | May 2007 | US |