Supporting device for bed

Abstract

A supporting device for a bed, placed on a bed plate, on top of or below a mattress, comprises a head-end inflatable bag, shaped like a triangular prism and placed at a determined position close to a head end of the bed plate, a foot-end inflatable bag, shaped like a triangular prism and placed at a determined position close to a foot end of the bed plate, and a compressor for inflating the head-end and foot-end inflatable bags. A person lying on the bed plate is supported by the head-end and foot-end inflatable bags on the upper body and the legs, respectively, assuming a sitting position upon inflating thereof and returning to a lying position upon deflating thereof.

Description

FIELD OF THE INVENTION[0001]The present invention relates to a supporting device for a bed, particularly to a supporting device for a bed which is inflatable and deflatable and provides support for sitting and lying positions in the bed.BACKGROUND OF THE INVENTION[0002]Humans spend one fourth to one third of there life in bed, in close contact with mattresses.[0003]Even healthy people sometimes read or work in bed. Sick or handicapped people spend even more time in bed. During times in bed, it is important to change positions and to move. To do so, however, handicapped persons often need assistance, which is not always immediately available. Therefore, supporting devices for head and foot ends of beds have been brought on the market.[0004]The following conventional supporting devices for head and foot ends of beds are available:[0005]1. devices with fixed support;[0006]2. devices with manually driven support; and[0007]3. devices with mechanically driven support, using oil pressure o...

AI Technical Summary

Benefits of technology

[0010]It is an object of the present invention to provide a supporting device for a bed which is simple, inexpensive and easy to move.

Problems solved by technology

To do so, however, handicapped persons often need assistance, which is not always immediately available.

The first two types of supporting devices have simple structures, but cannot be operated by sick or handicapped persons lying in bed.

The third type of supporting devices can be operated by sick or handicapped persons lying in bed, but has a complex, heavy and costly structure.

A supporting device of the third type is usually fixed on a bed plate, which makes moving inconvenient, while a mattress is no more than an attachment.

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