| 摘要 |
PROBLEM TO BE SOLVED: To provide an in-mold detachable stamping device, in which rotation of an indicator does not lock even after repeated rotation to change the stamp mark.SOLUTION: A stamping device is provided with: a roughly cylindrical outer marking shell that is fitted into a shaping mold; an indicator that is fitted inside the outer marking shell and is capable of angular displacement around the axial line; a cover that screws onto the lowermost section of the outer marking shell; and a spring for biasing the indicator with a downward force, wherein a stamp marking section is formed on surfaces of the outer marking shell and the indicator. The indicator is provided with: an indicator section that faces onto the inner surface of the mold; a positioning section extending downward from the indicator section; and a shaft section extending downward from the positioning section. The shaft section has a threaded section provided at the lower end thereof. The spring has an engaging section that engages with the indicator and a fixing section that is fixed to the cover. The pitch of the spring in the engaging section and the pitch of the threaded section are equal, and the engaging section is engaged with the threaded section. |
