| 摘要 |
A drive unit including a curved track rail having a first radius of curvature, a curved slide member which moves along the track rail and has a second radius of curvature substantially equal to the first radius of curvature, and a driving device such as an electromagnetic actuator for driving the slide member along the track rail. The driving device includes a primary side connected to the track rail and a secondary side connected to the slide member, and the drive unit may also include a position detecting device connected to the slide member and a flexible substrate connected between the position detecting device and the primary side for transmitting and receiving electrical signals indicative of a relative position of the slide member. The flexible substrate is disposed so as to be flexible in a radial direction of the track rail and the slide member.
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