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US 7,165,281 B2Granted
Bed
AssigneeStjernfjadrar AB
InventorsStefan Larssson, David Wyon
Life of this patent
Estimating the term…
Abstract
A bed comprises a support arrangement (1) adapted to provide upper support surfaces for and carry a person lying in the bed through an upper limitation thereof. A suction device is arranged to generate an air flow from the contact surfaces between a person lying in the bed, through the interior of the support arrangement and out thereof for obtaining a ventilation of the bed space under the person and suction of air away from the bed space through the suction device when a person rests in the bed.
Claims24
A bed, comprising
- a support arrangement (1,2,3) having an upper support surface (8) structured and arranged to support an individual lying thereon, at least a portion (5,6) of said upper support surface (8) being permeable to air,
- an opening (17) arranged through said support arrangement (1,2,3) to exterior surroundings and communicating with said at least air permeable portion (5,6) through an interior (13) of said support arrangement (1,2,3),
- a suction device (20) for creating negative air pressure being connectable to said opening (17), such that air is drawn from the exterior surroundings through said at least air permeable portion (5,6) and said interior (13) of said support arrangement (1,2,3) and out through said opening (17), to thereby draw air away from said support surface (8) through said interior (13) when the individual is lying on the bed, and
- means for controlling temperature surrounding an individual lying upon the bed by solely controlling the suctioning of air and comprising
- a control unit (23, 31) connected to said suction device (20) for controlling the drawing of air through said interior (13) of said support arrangement (1,3),
- members (28) structured and arranged for measuring temperature of air located in immediate proximity to said support surface (8) of said support arrangement (1,2,3) and coupled to said control unit (23) to forward temperature measurement thereto, such that said control unit (23) controls operation of said suction device (20) depending upon the measured temperature and controls temperature of air surrounding the individual lying upon the bed in the absence of further heating/cooling means.
3 more elements
A bed, comprising
- a support arrangement (1,2,3) having an upper support surface (8) structured and arranged to support an individual lying thereon, at least a portion (5,6) of said upper support surface (8) being permeable to air,
- an opening (17) arranged through said support arrangement (1,2,3) to exterior surroundings and communicating with said at least air permeable portion (5,6) through an interior (13) of said support arrangement (1,2,3),
- a suction device (20) for creating negative air pressure being connectable to said opening (17), such that air is drawn from the exterior surroundings through said at least air permeable portion (5,6) and said interior (13) of said support arrangement (1,2,3) and out through said opening (17), to thereby draw air away from said support surface (8) through said interior (13) when the individual is lying on the bed,
- a control unit (23, 31) connected to said suction device (20) for controlling the drawing of air through said interior (13) of said support arrangement (1,3),
- members (28) structured and arranged for measuring temperature of air located in immediate proximity to said support surface (8) of said support arrangement (1,2,3) and coupled to said control unit (23) to forward temperature measurement thereto, such that said control unit (23) controls operation of said suction device (20) depending upon the measured temperature and controls temperature of air surrounding the individual lying upon the bed,
- additionally comprising a separate compartment (18) situated within the interior (13) of the support arrangement (1,2,3) on a lower side thereof and with said opening (17) situated through a wall of said compartment (18), and said suction device (20) is constituted by a fan member (22) situated within said compartment (18).
3 more elements
A bed, comprising
- a support arrangement (1,2,3) having an upper support surface (8) structured and arranged to support an individual lying thereon, at least a portion (5,6) of said upper support surface (8) being permeable to air,
- an opening (17) arranged through said support arrangement (1,2,3) to exterior surroundings and communicating with said at least air permeable portion (5,6) through an interior (13) of said support arrangement (1,2,3),
- a suction device (20) for creating negative air pressure being connectable to said opening (17), such that air is drawn from the exterior surroundings through said at least air permeable portion (5,6) and said interior (13) of said support arrangement (1,2,3) and out through said opening (17), to thereby draw air away from said support surface (8) through said interior (13) when the individual is lying on the bed,
- a control unit (23, 31) connected to said suction device (20) for controlling the drawing of air through said interior (13) of said support arrangement (1,3),
- members (28) structured and arranged for measuring temperature of air located in immediate proximity to said support surface (8) of said support arrangement (1,2,3) and coupled to said control unit (23) to forward temperature measurement thereto, such that said control unit (23) controls operation of said suction device (20) depending upon the measured temperature and controls temperature of air surrounding the individual lying upon the bed,
- additionally comprising members (29) structured and arranged for measuring humidity of air located in immediate proximity to said support surface (8) and coupled to the control unit (23) to forward the measurement thereto such that the control unit (23) controls the suction device based upon the measured humidity.
3 more elements
A bed, comprising
- a support arrangement (1,2,3) having an upper support surface (8) structured and arranged to support an individual lying thereon, at least a portion (5,6) of said upper support surface (8) being permeable to air,
- an opening (17) arranged through said support arrangement (1,2,3) to exterior surroundings and communicating with said at least air permeable portion (5,6) through an interior (13) of said support arrangement (1,2,3),
- a suction device (20) for creating negative air pressure being connectable to said opening (17), such that air is drawn from the exterior surroundings through said at least air permeable portion (5,6) and said interior (13) of said support arrangement (1,2,3) and out through said opening (17), to thereby draw air away from said support surface (8) through said interior (13) when the individual is lying on the bed,
- a control unit (23, 31) connected to said suction device (20) for controlling the drawing of air through said interior (13) of said support arrangement (1,3),
- members (28) structured and arranged for measuring temperature of air located in immediate proximity to said support surface (8) of said support arrangement (1,2,3) and coupled to said control unit (23) to forward temperature measurement thereto, such that said control unit (23) controls operation of said suction device (20) depending upon the measured temperature and controls temperature of air surrounding the individual lying upon the bed,
- additionally comprising an air-tight box (18) situated upon a bottom interior surface of said support structure (1,2,3), with said opening (17) being situated through a top wall of said box structure (18),
- said suction device (20) constituted by a fan with impeller (22) situated withing said box structured (18), and
- a second opening (19) situated through a bottom surface of said box structure (18) to the exterior surroundings.
5 more elements
Dependencies are inferred from the claim text.