US 12,226,018 B2Granted

Bed

AssigneeLG Electronics Inc.

InventorsDeukwon Lee, Minkyu Oh, Yongnam Kim, Daewoong Kim, Seongwoo An, Yanghwan No, Hojae Jung

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Abstract

A bed according to an embodiment may include a topper, at least one firmness adjuster provided under the topper, and a bedframe configured to have an adjustable position and to support the firmness adjuster. There may be a plurality of firmness adjusters corresponding to a plurality of areas of the bed, and each firmness adjuster may include a plurality of cushions provided in a cushion case and a drive to adjust the firmness of the plurality of cushions. The drive may change a position of a first spring relative to a second spring in each of the cushions to change a perceived firmness by a user lying on top of the topper and the firmness adjusters. A dryer may be provided under the bedframe to keep the cushions and topper dry.

Claims12

Dependent claims

A bed, comprising:

a mattress having a first layer and a second layer provided over the first layer, the first layer having a plurality of adjustable cushions, wherein each adjustable cushion includes:
a case,
a plurality of elastic cushions provided on the case,
a drive coupled to the case, and
a plurality of driving gears configured to transmit a force from the drive to the plurality of elastic cushions such that a firmness of the adjustable cushion is adjusted when the drive is operated,
wherein each elastic cushion includes:
a first elastic member,
a second elastic member,
a first case coupled to the first elastic member,
a transmission gear configured to be engaged with the plurality of driving gears, and
a screw penetrating the first case such that, when the transmission pear rotates, the first case rises or descends along the screw such that a height difference between the first and second elastic members changes,
wherein the second elastic member surrounds the first elastic member and is provided on a second case, and the first case is provided inside of the second case.

9 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/091,299Filed 6 Nov 2020
Priority: KR 10-2020-00420087 Apr 2020
Published: US 2021/0307531 A17 Oct 2021
Granted: 18 Feb 2025
Term ends: Not estimatedThe source records don’t support an estimate.

Classification30 codes

A47C 21/044
For ventilating or cooling: with active means, e.g. by using air blowers or liquid pumps
A61G 7/015
Having adjustable mattress frame: divided into different adjustable sections, e.g. for Gatch position
A47C 20/041
With adjustable inclination: by electric motors
A47C 20/08
Head-, foot- or like rests for beds, sofas or the like: with means for adjusting two or more rests simultaneously