| 摘要 |
PURPOSE: A cradle is provided to remove a feeling of uneasiness and dizziness by having a regular angle of shake and to stand an upper body in an optimal angle of inclination at need. CONSTITUTION: A cradle comprises the steps of binding a bed(8) to a fixed frame(2) with strings(10,12), connecting the rear of the bed with a deceleration motor(23) and a link fixed to the fixed frame, manufacturing a lower tie bar(16) of the bed to be separated in front and rear parts, connecting with a shaft pin(18), binding one end of an adjusting string(26) boring through an upper tie bar(14) to the front part, and fixing in an optimal angle of inclination using a tightener(28) connected to the adjusting string.
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