| 摘要 |
Reciprocation device 10 for an infant bed or cradle, that comprises: a membrane 1, which supports a baby or child and extends along a first Cartesian dimension Y and a second Cartesian dimension Z to cover an area and has a thickness in the third Cartesian dimension X; and a tensioning mechanism 5, which adjusts the tension of the membrane 1 in at least either first or second Cartesian dimension for repeatedly rocking the child. The membrane 1 can be a mesh fabric sheet. There may be an eccentric rotatable member (Fig 3, 52), connected to the membrane 1, which is radially adjustable for changing the amplitude of the fluctuating movement of the sheet between a loose and a tight state. The device 10 can include a sensor and a controller. There may be a removable fabric cover to cover a frame of the device 10. |
