This invention relates to an apparatus for vertically raising and lowering a television or monitor between two positions.
Having a television or video monitor rise and lower between a storage position within a piece of cabinetry or furniture or beneath a counter top and a viewable position above the piece of cabinetry, furniture or counter top is often advantageous for aesthetic and utilitarian reasons. A variety of complicated lift devices have been developed to raise and lower televisions and video monitors from cabinetry and other furniture pieces, but these devices have been complicated and expensive electro-mechanical devices designed for custom home theater applications.
The present invention provides a reliable and cost effective lift pedestal for raising and lowering a television or video monitor between a retracted storage position and an extended viewing position. The lift pedestal is ideal for mobile home applications and home theater applications where cost and space restrictions are a principle concern. The lift pedestal can be incorporated into any suitable piece of furniture or cabinetry. In addition the lift pedestal can be mounted directly to any wall or vertical support structure. The lift pedestal can also be used as a stand alone support device or incorporated into cabinetry or a furniture enclosure.
One embodiment of the lift pedestal of this invention includes a stationary back plate and an extensible support plate to which the television or video monitor is mounted. A pair of cabinetry drawer slides allow vertical translational movement of the support plate relative to the back plate between the retracted storage position and the extended viewing position. The drawer slides are mounted between angled sides of the back plate and support plate. The lift pedestal is actuated by a gas prop mounted to a third drawer slide. A cable and pulley operate in conjunction with the gas prop to increase the effective travel of the gas prop piston. In another embodiment, the third drawer slide, cable and pulleys are replaced by a pair of gas props mounted to a sliding bracket mounted to the base plate.
By using components, such as drawer slides and gas props, this lift pedestal eliminates the complicated electro-mechanical actuators and lifts commonly used in expensive home theater applications. The lift pedestal can be adapted to accommodate any size or weight of television or monitor. The use of the two angled drawer slides mounted between the angled sides of the back plate and the support plate ensure smooth stable transport of the television between its extended and retracted positions. The angled sides of the back plate and support plate reduce the footprint size of the lift pedestal and create a more stable lift mechanism. In both embodiments, the effective travel of the lift is maximized without having to increase the piston size or travel of the gas props employed.
These and other advantages of the present invention will become apparent from the following description of an embodiment of the invention with reference to the accompanying drawings.
The drawings illustrate an embodiment of the present invention, in which:
Referring now to the drawings, reference numeral 10 in
As shown in
As shown, lift pedestal 10 is actuated by a gas prop 50 mounted to a third drawer slide 60. Gas prop 50 provides the counterbalance force to actuate pedestal lift 10 between the raised operational position and the retracted storage position. Gas prop 50 is of conventional design and includes a cylinder 52 and piston rod 54. The particular gas prop used in lift pedestal 10 is selected to have the necessary counterbalance force and travel to accommodate the weight and size of the television or video monitor to be supported by the lift pedestal. Lift pedestal 10 can be modified to operate with any size and weight of television or monitor by changing the dimension of the back and cover plates and selecting the appropriate gas prop to accommodate the size and weight of the television or monitor. In addition, one skilled in the art will note that gas prop 50 can be replaced in other embodiments of this invention with an electric linear actuator or any suitable extensible drive mechanism.
As shown, drawer slide 60 is another three section drawer slide, but any suitable drawer slide may be used within the teachings of this invention. The proximal slide member 62 is mounted to the base plate back 22. A bracket 56 connects piston cylinder 52 to the distal slide member 66 of drawer slide 60. Piston rod 54 is mounted to the back of support plate front 32. A wire cable 70 and pulley 80 operate in conjunction with gas prop 50 to increase the effective travel of piston rod 54. While a wire cable is illustrated in the drawings, one skilled in the art should note that any suitable cord, rope or chain can be used within the teachings of this invention. Cable 70 is trained around pulley 80, which is mounted to bracket 56. One end of cable 70 is fixed to base plate back 22 and the other end of cable 70 terminates in a turnbuckle 72 and is fixed to the end of piston rod 54, which is secured to cover plate front 32 by a bolt or fastener 74. Turnbuckle 72 is used to manually tighten and adjust the length of cable 70 and also allows some manual adjustment of the travel of lift pedestal 10.
As shown in
Again, gas props 150 and 170 are similar to gas prop 50 of pedestal lift 10 and are selected to have the necessary counterbalance force and travel to accommodate the weight and size of the television or video monitor to be supported by the lift pedestal. It should be noted that gas props 150 and 170 can be replaced in other embodiments of this invention with an electric linear actuator or any suitable extensible drive mechanism.
Sliding bracket 160 is mounted to a traveler 162, which slides vertically along the length of a channel 164 mounted to the back of base plate 120. Traveler 162 is formed of a low friction material, such as Teflon®, which allows the traveler to slide easily along the length of channel 164. As shown, gas prop 150 mounted to sliding bracket 160 and base plate 120 and gas prop 170 is mounted to sliding bracket 160 and support plate 130. As shown in
Pedestal lift 10 also includes a cable operated lock mechanism 180, which is used to lock support plate 130 in the retracted position. As shown, the lock mechanism includes a slide latch 182 and pin 184, which is released by a lever arm 186 attached to a cable pull 188. While a cable operated locking mechanism is illustrated, any suitable mechanical or electro-mechanical mechanism may be employed within the teachings of this invention.
One skilled in the art will note that the lift pedestal of this invention is ideal for mobile home applications and home theater applications where cost and space restrictions are principle concerns. The lift of this invention is ideal for recreational vehicle applications where floor and counter top space is critical. The lift pedestal can be incorporated into any suitable piece of furniture or cabinetry. In addition the lift pedestal can be mounted directly to any wall or vertical support structure. The lift of this invention can be manufactured using common components in the cabinetry industry, namely drawer slides and gas piston props. The use of cabinetry components allows the lift to be manufactured quickly and inexpensively and ensures simple maintenance free operation. The use of drawer slides and gas props also eliminates the complicated electro-mechanical actuators and lifts commonly used in expensive home theater applications. The lift pedestal can be adapted to accommodate any size or weight of television or monitor. The use of the two drawer slides between the back plate and the support plate allows the smooth stable transport of the television between its extended and retracted positions. The angled sides of the back plate and support plate reduce the footprint size of the lift pedestal and create a more stable lift mechanism. In one embodiment, mounting the gas prop to a third drawer slide and incorporating a cable and pulley system increases the effective travel of the gas prop piston rod without increasing the size of the gas prop. In another embodiment, the same result is accomplished by the use of two gas props in conjunction with a sliding bracket.
The embodiment of the present invention herein described and illustrated is not intended to be exhaustive or to limit the invention to the precise form disclosed. It is presented to explain the invention so that others skilled in the art might utilize its teachings. The embodiment of the present invention may be modified within the scope of the following claims.
This is a continuation-in-part of pending U.S. patent application Ser. No. 12/380,447 filed on Feb. 27, 2009, which claims benefit of U.S. provisional patent application Ser. No. 61/067,587 filed Feb. 29, 2008.
Number | Date | Country | |
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61067587 | Feb 2008 | US |
Number | Date | Country | |
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Parent | 12380447 | Feb 2009 | US |
Child | 12803071 | US |