Patent Application
20070033902
The present invention is directed to a suspension system for a ceiling, and more particularly to a suspended floating ceiling system.
Conventional suspended ceiling systems found in offices, retail stores and similar commercial settings typically include suspended grids which support acoustically performing soft fiber panels. These systems typically extend the entire length of the room in an uninterrupted manner, i.e. are continuous, and create a uniform appearance. While such continuous suspended systems provide a pleasant and acoustically absorbent space, designers, architects and building owners often object to the use of these systems for several reasons, including the cost of materials to accommodate the entire span. As a result, more and more interior building spaces have open ceiling, or open-plenum, designs in which at least a substantial portion of the hard ceiling, HVAC duct work, wiring and the like are exposed. The open-plenum design, however, tends to leave the space unstructured and, therefore, less useful and less aesthetically pleasing.
In the open-plenum interior building environment, ceiling systems which utilize floating ceiling panels, herein also referred to as suspended ceiling islands, are in increasing demand as these ceiling islands provide architects and designers with the ability to create unique structures with dramatic visual effects not available with conventional grid suspension ceilings. In addition, island ceilings differentiate the space in a room and provide functionality such as sound absorption and light reflectance.
It is desirable from an aesthetic standpoint for the island ceiling to have no visible suspension hardware and to have clean finished edges free of any exposed, unsightly edge detail or fastening means. One known way to minimize the visibility of the hardware is to move the suspension hardware from the edges of the ceiling to the back of the panel. In some instances, the hardware is embedded, at least partially, in the panel thereby forming a panel module. Known fabrication methods for embedding suspension hardware into the panel include: casting the panel around the suspension hardware; laminating two or more panels together and embedding the hardware in between; and routing the panel and inserting the hardware. These known techniques have several shortcomings.
For example, the casting and laminating techniques are preferably implemented during manufacturing. Panels with the suspension hardware embedded therein, i.e. as modules, are susceptible to damage during transport. At the same time, if these fabrication methods are implemented outside of the manufacturing process, the panel modules are highly susceptible to irregularities. It is important to note that casting and laminating, whether completed in the manufacturing process or in the field, are quite costly techniques.
Another known less expensive solution for embedding the suspension hardware is back-routing the panel. One such product is the Cloud Panel system available from Tectum, Inc. Tectum's Cloud Panel system is composed of rigid wood fiber acoustically absorbent material. As shown in prior art
In Tectum's Cloud Panel system, the inverted-T channels 2 span the entire length of the panel 1 and extend through the vertical edges 3 and the back surface 4 of the panel 2. It is widely known in the art that the structural integrity of the panel is compromised when the back-routing extends through the edge of the panel, and in particular, when the back-routing is a one-hundred percent through-cut. This is even more of a concern in routing soft fiber panels.
Additionally, panels supported by grid members extending in parallel relation to one another, for example grid members 5A and 5B, are susceptible to sag. The panel is particularly susceptible to sag between grid members if the grid members are spaced from one another at too great a distance relative the weight of the panel. Thus, too prevent sag, the grid members must be spaced within relatively small distances from one another, and, thus, more through-cut routing, i.e. a cut which penetrates an edge and is continuous through the board until it penetrates out through the edge at some point along the circumference of the edge of the panel. The more through-cut routing imparted to the panel, the less structurally stable the panel becomes.
It should further be noted that the Tectum Cloud Panel system requires an additional finishing step to eliminate the visibility of the routing detail 2 at the edge 3 of the panel 1, which ultimately increases the cost of the panel.
The present invention is directed to an improved suspended island ceiling system which limits the visibility of the suspension hardware, substantially preserves the structural integrity of the panel, and, at the same time, provides finished edges without the need for a finishing step.
The ceiling system of the invention includes a fiber panel having a top surface, a bottom surface and an edge extending therebetween. The top surface includes a routed channel which does not extend to the edge, or penetrate, the edge of the panel. The system also includes suspension hardware which supports the panel in both the longitudinal and cross axes when suspended from an overhead ceiling or wall.
One advantage of the current invention is provided by the in-board channel feature. For purposes of this description, the term in-board channel is defined as a channel that does not extend to the edges of the panel. More specifically, the in-board channel substantially preserves the integrity of the panel as there are no through-cut, and, at the same time, provides freedom of the edges. In other words, the edge configuration is not dictated by the support structure. Also, no additional edge detail, such as a trim element, is required to finish the edge of the panel.
Another advantage of the system of the invention is that it allows modification of known attachment methods using conventional ceiling components. The use of these conventional components and modified known attachment methods provides ease with respect to installation, thereby reducing the chance of irregularities upon installation. Also, the system is capable of providing a visual not currently available in the marketplace with the same components in their traditional application.
A further advantage is that the assembled hardware provides support along both the longitudinal and cross direction axes, which substantially inhibits sag.
Still another advantage is that the system can be transported to the installation site as a kit of parts which dramatically reduces the susceptibility of the parts to damage during transport.
Other features and advantages of the present invention will be apparent from the following more detailed description of the preferred embodiment, taken in conjunction with the accompanying drawings which illustrate, by way of example, the principles of the invention.
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Although the drawings illustrate the use of four separate suspension bars 54 and, and thus, four locking connection points, it should be noted that as little as one suspension bar could be used. For example, a single suspension bar 54 of sufficient length could be bent upon itself to conform substantially to the shape of channel 30, regardless of the shape of channel 30. The single suspension bar would then be connected at its ends to form a continuous inter-locked element. The key is for the suspension bar, or series of bars, to extend continuously around the circumference of the channel.
When assembled to the panel, the suspension bars 54 are capable of providing rigid support for the soft fiber panel 20 in both the longitudinal and cross directional axes of the soft fiber panel. A key feature is that the flange portion 56 of each suspension bar is positioned in the between the top and bottom walls, 60 and 62 respectively, of the second kerfed portion 34. To achieve the largest amount of rigidity, and least amount of play of the suspension hardware in the channel of the panel, the vertical portion 58 each suspension bar 54 is in contact with the side walls, 70 and 77 respectively, of the first recess portion 32 of the channel. When the panel is suspended in a substantially horizontal position, e.g. by suspension cables 52, the top wall 60 of the second channel portion 34 rests on, and is supported by, flange portion 56.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed as the best mode contemplated for carrying out this invention, but that the invention will include all embodiments falling within the scope of the appended claims.
A first example modification would be to have the second kerfed portion 34 extend from the first channel recess portion 32 in the direction of the exterior of the panel 20, rather than in the direction of the interior of the panel 20. This would require suspension members 54 of slightly greater length.
This application claims the benefit under 35 U.S.C. §119(e) of U.S. provisional application Ser. No. 60/700,929, filed Jul. 20, 2005.
| Number | Date | Country | |
|---|---|---|---|
| 60700929 | Jul 2005 | US |
