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1. WO2007097602 - RETRACTABLE MARKER PEN

Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

[ EN ]

[CLAIMS]

[Claim I] A retractable marker pen comprising:
a housing;
a body member placed in the housing, the body member being connected, at a rear end thereof, to the housing via a pushing and retracting connection structure for retractable movement thereof relative to the housing, the body member containing a filter filled with ink, a nib cylinder inserted into a front end of the body member, and a pen nib protruded from a front end of the nib cylinder, the nib cylinder having an outwardly-protruded sealing portion protruded from an outer periphery thereof;
a tubular sealing member fixedly mounted inside a front end of the housing, to allow the nib cylinder to be extruded out of and intruded into the tubular sealing member, the tubular sealing member having an inwardly-protruded sealing portion protruded from an inner periphery thereof, to define an inner sealing space of the tubular sealing member behind the pen nib together with the outwardly-protruded sealing portion of the nib cylinder; and
a cap installed to an opened front end of the tubular sealing member, so as to define an outer sealing space of the tubular sealing member, the cap being provided with an opening/closing device, wherein
the opening/closing device comprises:
a sliding arm formed with the body member, the sliding arm having a cap operating structure consisting of a pulling portion, a pushing portion, and an excessive propulsive force accommodating portion;
a push rod formed at the cap; and
an operating bar to couple the push rod of the cap to the cap operating structure of the sliding arm.

[Claim 2] The retractable marker pen according to claim 1, wherein the tubular sealing member includes a rubber-made inner tubular member installed therein, and a front end of the inner tubular member protrudes forward beyond the front end of the tubular sealing member by a length of 0.1~lmm such that the cap is adhered to and closed by the front end of the rubber-made inner tubular member.