| 摘要 |
PURPOSE: A bed in which an edge protrusion is formed is provided to stably support a waist in order to be closely contacted on an upper board by the edge protrusion which is formed on the central part of the upper board without using a separate thick pad or a cushion material in a waist part. CONSTITUTION: A bed (100) in which an edge protrusion is formed includes an upper board (110) which is formed in a board shape so that a user can lie down; a heating device (140) which is arranged in the lower part of the upper board; a supporting board which is arranged in the lower part of the heating device; and an outer frame (170) which rounds the all directional circumference of the upper board, the heating device, and the supporting board and fixes in one body. An edge protrusion (120) is formed in the upper surface of the upper board in order to support a waist of a human body by forming a height difference in the central part in which the waist is positioned. A buffering member (125) is more equipped in the edge protrusion in order to buffer an impact. The buffering member is an elastic member of a pipe shape in which hollowness is formed.
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