| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a bed apparatus with which a user does not receive pressure in an abdominal part and the body of the user is not deviated forward when a back board is erected,. <P>SOLUTION: A back board part 20 for supporting the back part of the user comprises: a lower back support part 26 for supporting the lower back part; and a middle and upper back support part 24 for supporting the middle and upper back parts of the back part other than the lower back part. The lower back support part 26 being on substantially the same surface of the middle and upper back part is projected while the back board part 20 is erected, and comes to be on the same surface of the middle and upper back support part 24 again immediately before the end of the erecting operation of the back board. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
