In-Mold Detachable Marking Device

摘要

The present invention provides an in-mold detachable marking device which does not lock rotation of an index body even when the index body is repeatedly rotated to switch marking indications. An in-mold detachable marking device comprises a substantially cylindrical outer shell body for indication fit into a molding mold, an index body fit into the outer shell body for indication and configured to be angularly displaceable around the axis line of the outer shell body for indication, a cover body screwed at the lowermost part of the outer shell body for indication, and a spring which biases the index body with the downward force, said outer shell body for indication and said index body having a. marking indication part formed on their surfaces, wherein the index body comprises an index part facing Miler surface of the mold, a positioning part extending downward from the index part, and a shall extending downward from the positioning part, the shaft having a threaded part in its lower part, the spring has an engaging part which engages with the index part, and a fixed pan which is fixed to the cover body, pitch of the spring of the engaging pan and pitch of the threaded part are equal, and the engaging pan and the threaded part engage each other.

主权项

1. An in-mold detachable marking device comprising:
a substantially cylindrical outer shell body for indication fit into a molding mold, an index body fit into said outer shell body for indication and configured to be angularly displaceable around the axis line of said outer shell body for indication, a cover body screwed at the lowermost part of said outer shell body for indication, and a spring which biases said index body with the downward force, said outer shell body for indication and said index body having a marking indication part formed on their surfaces, wherein said index body comprises an index part facing inner surface of said mold, a positioning part extending downward from said index part, and a shaft extending downward from said positioning part, said shaft haying a threaded part in its lower pan, said spring has an engaging, part which engages with said index part, and a fixed part which is fixed to said cover body, pitch of said spring of said engaging part and pitch of said threaded part are equal, and said engaging part and said threaded part engage each other.