| 摘要 |
An actuator for a movably supported object, comprising a rack, a rotatable pinion engaging the rack, a biasing member disposed around the axis of the pinion and connected to the pinion, and a damper. The biasing member stores a biasing energy while the pinion is rotated in one direction by a movement of the rack in a first direction. The biasing member biases the pinion in the other direction with the stored biasing energy and thereby biasing the rack in a second direction opposite to the first direction. The damper is encircled by the biasing member and has a fluid chamber which contains a viscous fluid and is formed around the axis of the pinion. The damper further includes a rotary member which is rotated with the pinion and has a damper portion disposed in the fluid chamber. The viscous fluid provides a resistance to rotation of the damper portion and to rotation of the pinion in the above-indicated other direction. Also disclosed is a container device incorporating the actuator. The container device comprises a stationary retainer, and a container supported by the retainer movably relative to the retainer. The rack is fixedly supported by one of the retainer and the container, and the pinion is rotatably supported by the other of the retainer and the container.
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