| 摘要 |
PROBLEM TO BE SOLVED: To increase transmission efficiency of force by reducing energy loss, and suppress generation of abnormal sound caused by swing-rotation vibration.SOLUTION: A drive force transmission mechanism 20 comprises: a drive part 220 consisting of a motor for generating rotational force; and an independent rotation mechanism 230 which is provided between the drive part 220 and one gear mechanism 210 among a pair of left and right gear mechanisms 210, 210 while being connected to an output shaft of the drive part 220, and has kinetic energy greater than a rotation part of each of the gear mechanisms 210, 210. Flexible shafts 233, 234, 235, which are rotated by kinetic energy smaller than kinetic energy of the drive part 220, kinetic energy of the rotation mechanism 230, and friction force and attenuation force of the rotation parts of the gear mechanisms 210, 210, connect between the drive part 220 and the rotation mechanism 230, between the rotation mechanism 230 and one gear mechanism 210, and between the drive part 220 and the other gear mechanism 210, respectively.SELECTED DRAWING: Figure 1 |
