AIR SYSTEM FOR A BED
20230240450 ยท 2023-08-03
Inventors
- Matthew Griffith (Buffalo, MN, US)
- Natalie Negus (Minneapolis, MN, US)
- Eric Rose (Piedmont, SC, US)
- Kody Lee Karschnik (Maple Grove, MN, US)
Cpc classification
A47C27/083
HUMAN NECESSITIES
A47C21/044
HUMAN NECESSITIES
International classification
Abstract
An air system for a bed can include a layer assembly having a head end, a foot end, and first and second sides, with a head portion near the head end, a foot portion near the foot end, and a middle portion between the head portion and the foot portion, the layer assembly. The layer assembly can have a spacer layer comprising spacer material configured to allow for air flow through the spacer material and a cover comprising a cover top layer and a cover bottom layer. The air system can have a distribution manifold that is substantially fan-shaped with a plurality of ribs defining channels and/or is positioned above the cover bottom layer and under the spacer layer. The air system can have first and second flaps with first and second retention features extending from the head and foot ends of the air layer.
Claims
1. An air system for a bed, comprising: a layer assembly having a head end, a foot end, and first and second sides, wherein the layer assembly has a head portion near the head end, a foot portion near the foot end, and a middle portion between the head portion and the foot portion, the layer assembly having: a spacer layer comprising spacer material configured to allow for air flow through the spacer material; and a cover comprising a cover top layer and a cover bottom layer, wherein the cover substantially encloses the spacer layer with the cover top layer above the spacer layer and the cover bottom layer below the spacer layer; and a distribution manifold extending through a portion of the cover, wherein the distribution manifold is positioned above the cover bottom layer and under the spacer layer so as to flow air from the distribution manifold to a space under the spacer layer, from the space under the spacer layer into the spacer layer, and from the spacer layer out through the cover top layer.
Description
DESCRIPTION OF DRAWINGS
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[0031] Like reference symbols in the various drawings indicate like elements.
DETAILED DESCRIPTION
[0032] In various embodiments described below, an air system can be used with a bed for delivering cooling, heating, or ambient air to control the temperature of a user lying on the air system. The air system can include one or more features that help increase air flow through the air system, thus improving user comfort while potentially using less energy. For example, a distribution manifold can have a fanned shape and/or be positioned under a spacer layer to increase air flow to certain parts of the air layer. An additional spacer material can be positioned under the spacer layer to help direct air from the distribution manifold across a user's body to the opposite side of the air layer. The air layer can have stitching that creates distribution channels oriented to allow flow to various parts of the air layer, and consequently, various parts of the user. An air engine can be connected via a hose assembly having structure to avoid air restrictions, such as a D-shaped cross-section that provides increased strength and/or a hose connection to reduce kinking. The air layer can be sized to cover only half of a two person bed, which can allow for increased comfort for the user by not requiring the air system to blow air to the entire bed. Having an air layer sized to cover only half of the bed also allows for two separate air layers to be positioned on the same bed, which can allow two users to control temperature to their own unique preferences. The air system can include flaps with retention features to hold the air layer in place, which can be suitable for retaining the air layer on a mattress even when only one air layer is positioned on a two person bed. Additional connectors, such as buttons and loops, can be employed to connect two air layers side-by-side. Some or all of these features can be combined for an air system having improved air flow and/or other functionality as further described in some of the following examples.
[0033]
[0034] In the illustrated embodiment, the bed 10 includes a mattress 20 and a foundation 22. In some embodiments, the mattress 20 can be an air mattress having an inflatable air chamber and a controller for controlling inflation of the inflatable air chamber. In other embodiments, the mattress 20 need not include an air chamber. For example, in some embodiments the mattress 20 can include foam and/or springs instead of or in addition to an inflatable air chamber. In those embodiments in which the mattress 20 is an air mattress, the air system 12 can be independent from the mattress 20, with the engine 16 dedicated to the air system 12 and the mattress 20 having its own inflation controller.
[0035] The foundation 22 is positioned under the mattress 20 to support the mattress 20. In some embodiments, the foundation 22 can be an adjustable foundation with one or more articulable sections, such as for raising the head and foot of the foundation 22 and the mattress 20. In other embodiments, the foundation 22 can be a stationary foundation.
[0036] In the illustrated embodiment, the layer assembly 14 of the air system 12 is positioned on a top surface of the mattress 20 so that when a user lies on the bed 10, the layer assembly 14 is positioned between the user and the mattress 20. The engine 16 delivers air from the engine 16 through the hose assembly 18 to the layer assembly 14 which distributes that air up through the top of the layer assembly 14 to the user laying on the layer assembly 14.
[0037] In some embodiments, the engine 16 can be a blower or air pump for blowing ambient air through the hose assembly 18 and layer assembly 14. Such ambient air can be used to cool the user lying on the layer assembly 14 due to ambient air being typically lower than the body temperature of the user and due to evaporation of perspiration by the user.
[0038] In some embodiments, the engine 16 can include a cooling unit to cool the air before delivering the air through the hose assembly 18 and the layer assembly 14. In such embodiments, the cooler air can further cool a user lying on the layer assembly.
[0039] In some embodiments, the engine 16 can include a heating unit to heat the air before delivering the air through the hose assembly 18 and the layer assembly 14. In such embodiments, the engine 16 can warm users that feel too cool. In various embodiments, the engine 16 can be configured to provide warm, cool, and/or ambient air as desired by the user.
[0040] The air system 12 can include a connector such as flaps 24 to connect the layer assembly 14 to the bed 10. The air system 12 can have a first flap 24 extending from a foot end of the layer assembly 14 to be tucked under the foot of the mattress 20, between the mattress 20 and the foundation 22. The air system 12 can also have a second flap 24 (not shown in
[0041] In the embodiment illustrated in
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[0045] The layer assembly 14 can include two relatively short stitchings 28G-28H extending from near the stitching 28C to near the end 34. The stitchings 28G-28H can curve as illustrated to direct air toward the end 34 and the proximal side 30. The layer assembly 14 can include two relatively short stitchings 281-28J extending from near the stitching 28F to near the end 36. The stitchings 281-28J can curve as illustrated to direct air toward the end 36 and the distal side 32.
[0046] The stitchings 28A-28C and 28G-28H can be spaced from the stitchings 28D-28F and 281-28J to form a channel extending from the hose assembly 18 at the proximal side 30 to the distal side 32. Accordingly, the stitching 28 can be one suitable pattern that partially allows and partially restricts flow so as to supply air to various parts of the layer assembly 14.
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[0049] The stitching 28 of the layer assembly 14 can extend through both the cover 52 and the spacer layer 50, including the top layer 54, the top mesh 58, the monofilament strands 62, the bottom mesh 60, and the bottom layer 56. The stitching 28 can compress the spacer layer 50 to restrict air flow at the location of the stitching 28, while the spacer layer 50 can remain expanded at locations without the stitching 28 to allow air flow in channels between rows of the stitching 28.
[0050] In some embodiments, the cover 52 can be made of a relatively air tight material and can define a pattern of holes such that air flowing through the cover 52 is directed to and through locations having the holes. In other embodiments, the cover 52 can be air-permeable or semi-air-permeable. For example, in some embodiments the cover 52 can include a substantially air tight bottom layer 56 to restrict air from flowing down toward the mattress 20 and can include a substantially air permeable top layer 53 to allow air flow up toward a user.
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[0052] In some embodiments, the air system 12 and its layer assembly 14 can be used alone on one side of the mattress 20 with the other side of the mattress 20 having no layer assembly 14.
[0053] In other embodiments, two air systems 12 with two layer assemblies 14 can be used on the same bed 10. In that case, two layer assemblies can be positioned side-by-side with one dedicated for each user, which can allow each user to independently control the heating and/or cooling of his or her side of the bed 10 via the respective air systems 12.
[0054] As shown in
[0055] In some embodiments, the connectors 66 can include buttons 68 and loops 70. Each air system 12 can include multiple locations, each with a button 68 and a loop 70. At each given location, the loop 70 of one air system 12 can connect to the button 68 of the adjacent air system 12 and the button 68 of the first air system 12 can connect to the loop 70 of the adjacent air system 12. Accordingly, there can be two loop-to-button connections at each location and there can be multiple connection locations total (there are three shown in
[0056] In other embodiments, the connectors 66 can be different than as illustrated. For example, the connectors 66 can include some fastener other than buttons.
[0057] In embodiments having the connectors 66, the connectors 66 can help retain the layer assembly 14 in place in applications when the layer assembly 14 is used with a second layer assembly 14. In other embodiments, the layer assembly 14 can be retained in place with the flaps 24 or via features other than the connectors 66.
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[0059] The spacer material 72 can be similar to the spacer layer 50. In some embodiments, the spacer material 72 can differ from the spacer layer 50 in certain ways. For example, the spacer material 72 can have monofilament strands 62 (shown in
[0060] The distribution manifold 74 can be shaped as an arc or semi-circle with ribs 76 to direct air into the layer assembly 14 at different angles. The distribution manifold 74 can direct air toward the spacer material 72 as well as to the sides of the spacer material 72 under the spacer layer 50.
[0061] In some embodiments, the distribution manifold 74 can be wider than the spacer material 72. In other embodiments, the distribution manifold 74 can be about the same width as the spacer material 72. For example, the distribution manifold can be about 12 inches wide and the spacer material can be about 8 to 12 inches wide.
[0062] In some embodiments, the distribution manifold 74 and the ribs 76 can be made of a relatively soft and flexible material. For example, the distribution manifold 74 and the ribs 76 can be made of silicone. This can allow the distribution manifold 74 and the ribs 76 to be rigid enough to supply air to the layer assembly 14 but soft enough to produce little or no discomfort to a user laying on the layer assembly 14 at a location near or on the distribution manifold 74.
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[0064] In some embodiments, the spacer material 72 can be thinner than the spacer layer 50 and the distribution manifold 74. For example, in some embodiments the spacer material 72 can be about 10 mm thick and the spacer layer 50 can be about 20 mm thick. In other embodiments, the spacer layer 50 and the spacer material 72 can have different thicknesses suitable for the application.
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[0067] The distribution manifold 74 can include indented flex points 86 that allow for at least some flexibility of the distribution manifold 74. The hose 78 can also include indented flex points 88. For example, the hose 78 can be a bellows-style hose with a repeating series of alternating flex points 88 along the hose 78. This can allow the hose assembly 18 to expand and contract as well as to bend to accommodate the air system 12 being used in different applications.
[0068] The hose 78 connects to the engine 16 (shown in
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[0072] The nozzle 90 of the engine connector 84 extends from a relatively thick inner ring 100. The engine connect 84 also has a thinner outer ring 102 positioned radially outward of the inner ring 100 so as to define an annular slot 104 between the outer ring 102 (on the outside) and the inner ring 100 and the nozzle 90 (on the inside). The swivel fitting 82 and the end of the hose 78 can be positioned in the slot 104 as illustrated with the swivel fitting 82 holding the ring 96 adjacent the nozzle 90 and the ring 100.
[0073] The radially outer surface of the swivel fitting 82 can engage with the radially inner surface of the ring 102 of the engine connector 84 via a snap fitting 106. The snap fitting 106 can be sized and toleranced to allow for rotational movement between the swivel fitting 82 and the engine connector 84. This can allow the hose 78 to swivel with respect to the engine 16. In some embodiments, the end of the hose 78, including its ring 96, can be sized to allow relative rotational movement between the hose and the swivel fitting 82 as well.
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[0078] For example, the air system 108 can include an additional fabric cover 112 that covers the layer assembly 38. The top layer 48 of the layer assembly 38 can be relatively air tight except for holes 46 that allow air to flow therethrough. The fabric cover 112 can be relatively air permeable to allow air flow therethrough without additional holes.
[0079] Additionally, the layer assembly 38 can have a spacer layer 114 that is aligned with an outlet of a distribution manifold 116 of the hose assembly 110 such that air from the distribution manifold 116 is blown directly into the side of the spacer layer 114. The spacer layer 114 can have a cut-out of a semi-circle or other suitable shape to correspond to the shape of the distribution manifold 116 and allow the distribution manifold 116 to extend into the layer assembly 38 at the same level as the spacer layer 114. The stitching 40 can be patterned in a manner suitable for directing air to different parts of the layer assembly 38 when air is blown directly into the side of the spacer layer 114 as shown and described.
[0080] As shown in
[0081] Air systems as described herein provide a convenient, comfortable, and effective system to provide ambient or temperature controlled air to one or two users of a bed. Various embodiments can include unique features and advantages including relatively high air flow reliably delivered to appropriate locations for user comfort and effective connection mechanisms to securely and conveniently hold the system in place.
[0082] The foregoing detailed description and some embodiments have been given for clarity of understanding only. No unnecessary limitations are to be understood therefrom. It will be apparent to those skilled in the art that many changes can be made in the embodiments described without departing from the scope of the invention. For example, while the air system is described as delivering cooling or heating air in some embodiments, the air system can deliver ambient air in other embodiments. Additionally, while the shape and configuration of certain components can be beneficial for increasing air flow in certain embodiments, shape and configuration can be varied for those components in other embodiments. Thus, the scope of the present invention should not be limited to the exact details and structures described herein, but rather by the structures described by the language of the claims, and the equivalents of those structures. Any feature or characteristic described with respect to any of the above embodiments can be incorporated individually or in combination with any other feature or characteristic, and are presented in the above order and combinations for clarity only.