ACTUATOR

摘要

An actuator includes M supports to support the rotary shaft, M being an integer equal to or more than 2; and M speed reducers. The Nth support out of the M supports is located at the opposite side of the moving body across the (N−1)th support, N being an integer which is equal to or more than 2 and equal to or less than M. The first speed reducer is connected to the moving body and the first support, receives a movement of the moving body in the axial direction as an input and drives the first support with a reduced drive force that is reduced from the input, and the Nth speed reducer is connected to the (N−1)th support and the Nth support, receives a movement of the (N−1)th support in the axial direction as an input and drives the Nth support with a reduced drive force.

主权项

1. An actuator comprising:
a rotary shaft extending in an axial direction; a moving body to move in the axial direction along the rotary shaft in response to a rotation of the rotary shaft upon receiving a rotational drive force; M supports to support the rotary shaft, M being an integer equal to or more than 2; and M speed reducers, wherein an Nth support out of the M supports is located at the opposite side of the moving body across the (N−1)th support, N being an integer which is equal to or more than 2 and equal to or less than M, a first speed reducer out of the M speed reducers is connected to the moving body and a first support, receives a movement of the moving body in the axial direction as an input and drives the first support with a reduced drive force that is reduced from the input, and an Nth speed reducer is connected to the (N−1)th support and the Nth support, receives a movement of the (N−1)th support in the axial direction as an input and drives the Nth support with a reduced drive force that is reduced from the input.