Mattress device
A mattress includes a bag in which an amount of fluid is sealed. A portion of the bag is provided with an adjuster which adjust an inner volume of the bag. Adjusting the inner volume changes a pressure of the fluid in the bag which is regarded as a softness or hardness of the mattress. Such an adjus...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A mattress includes a bag in which an amount of fluid is sealed. A portion of the bag is provided with an adjuster which adjust an inner volume of the bag. Adjusting the inner volume changes a pressure of the fluid in the bag which is regarded as a softness or hardness of the mattress. Such an adjustment is established without a supply or a drain of the fluid in and to the bag, respectively. |
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