Abstract: 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.

Abstract: 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.

Abstract: A marking device comprises an outer shell in a cylindrical shape with a bottom surface attached to a molding device, a rotatable tube provided inside of the outer shell, an indicator connecting to the bottom of the outer shell and a support mechanism pushing up the rotatable tube from the internal space of the outer shell while the indicator and the outer shell are engaged with each other. The head of the indicator is formed in a frusto-conical shape tapered into the inside of the outer shell. The rotatable tube comprises an inner surface contacting to the outer surface of the head of the indicator, and an outer surface forming a frusto-conical head tapered into the inside of the outer shell from a second carved marks. The outer shell comprises an inner surface contacting to the outer surface of the head of the rotatable tube.

Abstract: A marking device comprises an outer shell in a cylindrical shape with a bottom surface attached to a molding device, a rotatable tube provided inside of the outer shell, an indicator connecting to the bottom of the outer shell and a support mechanism pushing up the rotatable tube from the internal space of the outer shell while the indicator and the outer shell are engaged with each other. The head of the indicator is formed in a frusto-conical shape tapered into the inside of the outer shell. The rotatable tube comprises an inner surface contacting to the outer surface of the head of the indicator, and an outer surface forming a frusto-conical head tapered into the inside of the outer shell from a second carved marks. The outer shell comprises an inner surface contacting to the outer surface of the head of the rotatable tube.

Abstract: A gas-exhausting marking device that is easily attached to the molding device in an appropriate position where the marking device exhibit sufficient gas-exhausting effect. The upper surface and the bottom surface of the marking device according to the present invention are configured to be breathable to allow gas to flow therethrough.

Abstract: A gas-exhausting marking device that is easily attached to the molding device in an appropriate position where the marking device exhibit sufficient gas-exhausting effect. The upper surface and the bottom surface of the marking device according to the present invention are configured to be breathable to allow gas to flow therethrough.

Abstract: The object of the present invention is to provide a removable marking device for a mold that enables to leave two marks of different meanings accurately with simple operation. A removable marking device for a mold has a control mechanism that allows said indicator axle to rotate with said rotatable tube when said indicator axle rotates in the other direction.

Abstract: The object of the present invention is to provide a removable marking device for a mold that enables to leave two marks of different meanings accurately with simple operation. A removable marking device for a mold has a control mechanism that allows said indicator axle to rotate with said rotatable tube when said indicator axle rotates in the other direction.

Abstract: A removable marking device for mold consists of a substantially cylindrical outer member, an indicator can be rotated around axis line of outer member, a mark portion that is formed on upper surface of outer member and said indicator, wherein in said indicator, plural positioning projection portions protruding in radial direction of indicator is located, positioning projection portion consists of a positioning spring buried in indicator and an insert portion located in a tip of positioning spring, in inner wall of outer member, a positioning groove extending axis direction of outer member is formed at even intervals along circumferential direction of middle bore portion, in plural positioning projection portions, when at least one positioning projection portion is inserted in positioning groove, other positioning projection portion touches in inner wall of outer member in positioning groove.

Abstract: A removable marking device for mold consists of a substantially cylindrical outer member, an indicator can be rotated around axis line of outer member, a mark portion that is formed on upper surface of outer member and said indicator, wherein in said indicator, plural positioning projection portions protruding in radial direction of indicator is located, positioning projection portion consists of a positioning spring buried in indicator and an insert portion located in a tip of positioning spring, in inner wall of outer member, a positioning groove extending axis direction of outer member is formed at even intervals along circumferential direction of middle bore portion, in plural positioning projection portions, when at least one positioning projection portion is inserted in positioning groove, other positioning projection portion touches in inner wall of outer member in positioning groove.

Abstract: The present invention provides a removable marking device for a mold which includes a substantially cylindrical outer member fitted into the mold, an axially rotatable indicator fitted into the outer member and indications formed on top surfaces of the outer member and the indicator which is formed by an indication portion facing an inner surface of the mold and a screw portion extended from the indication portion, the outer member having a three-stepped bore which has an upper bore portion, a middle bore portion extending from the upper bore portion of a cross-sectional dimension larger than that of the upper bore portion and a lower bore portion extending from the middle bore portion of a cross-sectional dimension larger than that of the middle bore portion, the indicator inserted into the bore with the indication portion arranged in the upper bore portion and the screw portion arranged into the middle bore portion, a cover member inserted to the lower bore portion and clinging to the outer member, a nut th