| 摘要 |
PROBLEM TO BE SOLVED: To provide a mechanism for preventing slip of the buttock of a patient when the patient changes his posture from a seated posture to a standing posture or from the seated posture to a lying posture via a reclined posture. SOLUTION: A waist seat 2 is raised diagonally and an angle seat plate 14 for the patient's buttock rises while kept horizontal to provide support to prevent slip of the buttock. To prevent slip of the patient's body when the patient changes his posture from a seated attitude to a lying posture, the force of tilting the special lower end of a backrest is transmitted to a creating rod to operate the slipping end of the creating rod to raise the angle seat plate diagnoally to thereby prevent slip of the patient's body. |
