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Inflatable bed with cushion cells

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Title: Inflatable bed with cushion cells.
Abstract: An inflatable bed assembly having a plurality of inflatable cushion cells disposed on the top of the inflatable bed. Each cushion cell has a vent fluidly interconnecting the interior volume of the cushion cell with a main air chamber of the bed. When the bed is inflated, the cushion cells inflate and form raised projections on the top of the bed. The cushion cells provide a pressure sensitive surface which molds to the user's body for increased comfort. The vents are sized to allow the cushion cells to inflate upon inflation of the main air chamber, partially deflate when pressure is applied, and re-inflate when the pressure is removed. The size of the vents dampens the rate that air passes through the vent. The controlled inflation and deflation of the cells softens the impact caused by application of a body thereon and simulates the dampened response of “memory-foam”. ...


USPTO Applicaton #: #20090320211 - Class: 5713 (USPTO) -
Beds > Mattress (for Whole Body) >Having Confined Gas (e.g., Air Mattress) >Variably Pressurizable Chambers (e.g., With Pump)

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The Patent Description & Claims data below is from USPTO Patent Application 20090320211, Inflatable bed with cushion cells.

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RELATED APPLICATIONS

This application claims the benefit of U.S. Provisional Application No. 60/980,181, filed Oct. 16, 2007.

FIELD OF THE INVENTION

The invention pertains to the field of inflatable beds.

BACKGROUND OF THE INVENTION

Inflatable beds are popular because they are portable and have a relatively low cost compared to beds with traditional mattresses. While improvements in inflatable beds have given them a comfort level comparable with traditional mattresses, inflatable beds still do not offer many of the features of traditional mattresses. For instance, traditional mattresses constructed out of memory foam have become very popular because they offer a pressure sensitive surface that molds to the contours of a user\'s body in a dampened manner, while still providing firm support. Prior inflatable beds have not offered such a pressure sensitive surface.

Another disadvantage of prior inflatable beds is that they do not offer a comfortable landing for the user\'s body. When a user places their body on a prior inflatable bed, there is a significant impact on the top of the inflatable bed which causes it to depress considerably thereby failing to cushion the person or provide a soft landing.

Therefore, it is an object of the invention to provide an inflatable bed that provides a pressure sensitive surface which molds to the contours of the user\'s body while still providing firm support.

It is another object of the present invention to provide an inflatable bed that molds to the contours of the user\'s body in a dampened manner, and that returns to an at-rest state in a dampened manner.

It is yet another object of the present invention to provide an inflatable bed that provides a soft landing surface when a user places their body on the inflatable bed.

Yet another object of the present invention is to provide an inflatable bed with increased comfort that is suitable for everyday usage.

Still a further object of the present invention is to provide an inflatable bed which provides increased comfort and is economical to manufacture.

SUMMARY

OF THE INVENTION

The foregoing objects are met by the present invention directed to an improved inflatable bed. The inflatable bed has a top and bottom, a main air chamber, and an inflation valve in fluid communication with the main air chamber. A plurality of inflatable cushion cells are disposed on the top of the inflatable bed.

Each of the inflatable cushion cells is comprised of an exterior panel and an interior panel. The interior panel of each inflatable cushion cell has a vent fluidly interconnecting the interior volume of the cushion cell with the main air chamber. The inflatable bed also has retaining means connected to the interior panel of each cushion cell to retain the interior panel a predetermined maximum distance from the bottom of the inflatable bed.

When the inflatable bed is inflated, the main chamber fills with air, pushing the top of the inflatable bed in a direction away from the bottom of the bed. Air travels from the main air chamber through the cushion cell vents to begin to inflate the cushion cells. When the cushion cells begin to inflate, the exterior panel of each cushion cell is pushed in a direction away from the bottom of the bed, together with the interior panel of each cushion cell. When the interior panel is at a predetermined maximum distance from the bottom of the inflatable bed, the interior panel is retained by the retaining means, which stops its movement away from the bottom of the air bed. The exterior panel, free to move past the predetermined maximum distance from the bottom of the inflatable bed, separates from the interior panel as the cushion cell continues to inflate.

When the cushion cells are fully inflated, the exterior panels form raised projections on the top of the inflatable bed and provide increased support for the user. The vents are sized so that when the user places their body on the inflatable bed, air from the cushion cells in contact with the user\'s body slowly exits the cushion cells and travels into the main air chamber, in a dampened manner. The rate of deflation of the cushion cells is dependent on the amount of pressure placed on the exterior panel of the cushion cell and the size (area) of the vent. The cushion cells will normally partially or fully deflate when a person rests their body thereon. When the weight is removed from the cushion cells, the vents allow the cushion cells to re-inflate with air from the main chamber.

The inflation and deflation of the cushion cells causes the projecting exterior panels to depress in portions bearing the user\'s weight and to maintain their inflation in areas not bearing the user\'s weight. Therefore, the cushion cells act as a pressure sensitive surface which molds to the contours of the user\'s body for increased comfort. When a user changes their position on the inflatable bed, the cushion cells will adapt, in a dampened manner, to provide a continual contoured surface. When the user removes their body from the bed, the cushion cells re-inflate, again, in a dampened manner. This pressure sensitive surface allows the cushion cells to simulate the advantages offered by memory foam on a traditional mattresses.

The size of the vents affects the rate at which air flows in and out of the cushion cell. The sizing of the vent preferably substantially restricts the rate that the air may pass through the vent, such that the vent will prevent air from rapidly leaving or entering the cushion cell. The controlled deflation (and re-inflation) of the cushion cells serves to simulate the dampened response of a “memory-foam” surface of a traditional bed, to cushion the impact caused by application of the user\'s body on the bed, and provide a soft landing to the user.

DESCRIPTION OF THE DRAWINGS

The above and other objects, features and advantages of the present invention will become apparent from the following description of a preferred but, nonetheless, illustrative embodiment of the invention, taken in conjunction with the accompanying drawings, wherein:

FIG. 1 provides a perspective view of the inflatable bed in a fully inflated state;

FIG. 2 provides a sectional view of the inflatable bed in a fully inflated state;



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stats Patent Info
Application #
US 20090320211 A1
Publish Date
12/31/2009
Document #
12252504
File Date
10/16/2008
USPTO Class
/5713
Other USPTO Classes
International Class
47C27/10
Drawings
9


Deflation
Inflation


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