| 摘要 |
PROBLEM TO BE SOLVED: To provide a mixed compound divider with a piston drive unit in which a mixed compound is pushed out by a fixed pressure.SOLUTION: A piston drive unit advances a piston such that a cam member 40 is biased forward by a spring biasing member 42 and is turned around a pivot axis A4 with a drive arm supporting member, and a cam contour part 40a turns a piston driving arm around a pivot axis A3 with the drive arm supporting member via a cam follower. The cam contour part has a contour curve configured such that the direction of an action line of force applied to the cam follower from the cam contour to a line connecting the pivot axis A3 from a sliding contact point with the cam follower becomes constant. A biasing force applied from the spring biasing member to the cam member is reduced in response to the shortening of a distance between the pivot axis and the cam follower when the cam member is turned around the pivot axis A4 with the drive arm supporting member so as to advance an upper end of the piston driving arm. |
