| 摘要 |
PROBLEM TO BE SOLVED: To provide a quantitative syringe type ejector allowing subdivisional take-out of a content of one syringe.SOLUTION: A quantitative syringe type ejector has: a syringe 11 having a finger hook part 11d; a piston 13 disposed inside the syringe 11; and a rod 14 pushing in the piston 13. The rod 14 has a plurality of annular projections 14p along a rod body 14a, and each of the rear end faces Fthereof is inclined forward from the rod body 14a. The syringe 11 has bend pieces 24 tiltable with elastic base parts 23 as base points. The bend piece 24 is formed by a front extension part 24a and a rear extension part 24b. The front extension parts 24a are pushed and opened by the annular projection 14p when having pushed in the rod 14 to deform the elastic base parts 23 while inclining the bed pieces 24 toward the rod body 14a, and the rear extension parts 24b contact with the next annular projection 14p by the inclination of the bend pieces 24, and push back the annular projection 14p when releasing the push-in of the rod 14 to return the bend pieces 24 to an initial state. |
