| 摘要 |
PROBLEM TO BE SOLVED: To enable the movement and rotation of a container in compliance with a centrifugal force by providing a cup which receives the container and moves in parallel with a longitudinal axial core when a centrifugal force works and supporting the cup in a freely movable manner in the longitudinal and the crosswise direction with a fluctuating means including a cam provided in a sine curve fashion. SOLUTION: A sine-curved cam groove 3 is formed as a fluctuating means 3 on the outer periphery of a cup 2 with an end part which receives a container 1, in a centrifuge. In addition, a pivoting means (cam follower) 5 provided inside a block 4 is fitted into the cam groove 3. The motion of the block 4 in a direction in which a centrifugal force works is decelerated by a speed reduction means 6 made up of at least, a single spring. When a centrifugal rotor rotates to reach a set number of rotation, the centrifugal force acts upon the block 4 to move the cup 2 along the cam groove 3 through the cam follower 5 into a direction in which the cup 2 becomes apart from the center of the centrifugal rotor and at the same time, cause the cup 2 to rotate into the peripheral direction. |
