Patent ID: 8893336
Filing Date: 2014-11-25
Classification: A47C

Abstract:
1. A device for automatically adjusting the hardness of a mattress based on the operator's lying position or the operator's side lying position comprising: a base, having a plurality of hollow platforms that have a plurality of support legs; a lifting device, below the hollow platforms of the base; a mattress body, disposed on the base and comprising a bed surface, a bed bottom, a plurality of flexible support units, and a plurality of gravity sensors, a plurality of through holes being disposed in the bed bottom and corresponding to the lifting device, the flexible support unit being constructed by a first flexible member female-connected with a second flexible member, the two ends of the first flexible member being urged to the bed surface and the bed bottom, the second flexible member being free to go into and get out from the through hole of the bed bottom and being supported by the lifting device, the plurality of gravity sensors being transversely arranged on the top of one of the first flexible members, wherein the first flexible members are arranged transversely; and a control device, connected with the lifting device and the plurality of gravity sensors, wherein the control device determines whether the touching number of the gravity sensors is greater, equal to or less than a preset value or not and judges an operator is on his lying position or side lying position, therefore automatically drives the lifting device to an upper preset position or a lower preset position, the second flexible member being variable for flexibility according to the position of the lifting device so as to have different flexibilities of the operator's lying position or operator's side lying position.