US2025194820A1PendingUtilityA1
Mattress assembly and furniture comprising same
Est. expiryJan 18, 2042(~15.5 yrs left)· nominal 20-yr term from priority
Inventors:Byung Il KangJong Min KimDong Min OhJin-Wook LeeHye Young YiChul-Woo ParkHo Sik YimEu Jean MoonJung Kyu Yang
A47C 27/082A47C 27/10A47C 27/083A47C 20/027A47C 19/022
51
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Claims
Abstract
A mattress assembly and furniture includes: an air pocket unit; a flow channel providing a passage through which the air flows and communicating with the air pocket unit; a pump for causing the air to flow into the air pocket unit; a valve unit including one or more valves selectively opened or closed to control the flow of air in the flow channel and the air pocket unit; a sensor unit configured to detect a pressure of the air pocket unit; and a controller configured to control the pump and the valve unit according to an external signal such that a hardness of the air pocket unit is set to one of a plurality of preset hardness levels.
Claims
exact text as granted — not AI-modifiedWhat is claimed is:
1 . A mattress assembly comprising:
an air pocket unit for containing air to support a user; a flow channel providing a passage through which the air flows and communicating with the air pocket unit; a pump for causing the air to flow into the air pocket unit; a valve unit including one or more valves selectively opened or closed to control the flow of air in the flow channel and the air pocket unit; a sensor unit configured to detect a pressure of the air pocket unit; and a controller configured to control the pump and the valve unit according to an external signal such that a hardness of the air pocket unit is set to one of a plurality of preset hardness levels, wherein, when a changed hardness level, which is a hardness level different from a current hardness level that is currently set by the signal, is set, the controller calculates a control reference pressure on the basis of a current pressure, which is the pressure of the air pocket unit detected by the sensor unit, and a predetermined level reference pressure corresponding to the current hardness level, derives a target pressure by adding or subtracting a pressure difference corresponding to the difference between the current hardness level and the changed hardness level to or from the control reference pressure, and controls one or more of the pump and the valve unit such that the pressure of the air pocket unit reaches the target pressure.
2 . The mattress assembly of claim 1 , wherein the control reference pressure is calculated on the basis of the level reference pressure when the current pressure is equal to or less than the level reference pressure.
3 . The mattress assembly of claim 1 , wherein the control reference pressure is greater than 0.1 psi and less than 1.5 psi.
4 . The mattress assembly of claim 1 , wherein the control reference pressure is calculated on the basis of the current pressure when the current pressure is greater than the level reference pressure.
5 . The mattress assembly of claim 1 , wherein the air pocket unit includes a plurality of pocket areas, and the current pressure is the pressure of the air pocket unit detected by the sensor unit in a state in which all of the pocket areas are in communication with each other.
6 . The mattress of claim 1 , wherein the air pocket unit includes a plurality of pocket areas, and the current pressure is an average of pressures of the plurality of pocket areas detected by the sensor unit in a state in which the pocket areas are not in communication with each other.
7 . The mattress assembly of claim 1 , wherein, at the time of changing to the changed hardness level greater than the current hardness level, the target pressure is derived according to Formula 1 below.
T
=
R
+
(
K
×
(
Sb
-
Sa
)
)
(
Formula
1
)
(In Formula 1, T is the target pressure, R is the control reference pressure, K is a pressure difference constant between hardness levels, Sa is the current hardness level, and Sb is the changed hardness level.)
8 . The mattress assembly of claim 1 , wherein, at the time of changing to the changed hardness level less than the current hardness level, the target pressure is derived according to Formula 2 below.
T
=
R
-
(
K
×
(
Sa
-
Sb
)
)
(
Formula
2
)
(In Formula 2, T is the target pressure, R is the control reference pressure, K is a pressure difference constant between hardness levels, Sa is the current hardness level, and Sb is the changed hardness level.)
9 . The mattress assembly of claim 1 , wherein the valve unit includes a plurality of injection valves opened or closed to inject the air into the air pocket unit or opened or closed to discharge the air from the air pocket unit, and
wherein the controller controls the pump and the plurality of injection valves such that the air is injected into the air pocket unit when the current hardness level is changed to the changed hardness level greater than the current hardness level, and controls the plurality of injection valves such that the air is discharged from the air pocket unit when the current hardness level is changed to the changed hardness level less than the current hardness level, thereby causing the pressure of the air pocket unit to reach the target pressure when the target pressure is derived.
10 . Furniture comprising:
the mattress assembly according to any one of claims 1 to 9 ; and a backrest disposed on one side of the mattress assembly.Join the waitlist — get patent alerts
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