| 摘要 |
<p>The present invention relates to a rotary-type retractable writing implement with an anti-drying device, wherein an upper shaft and a lower shaft are coupled together such that the two shafts are rotatable in opposite directions, and a cartridge accommodated in a intermediate connection member is movable, and an open/shut module for covering a nib opens/shuts by means of the movement of the cartridge so as to provide a nib-advancing path. The rotary-type retractable writing implement with an anti-drying device comprises: said cartridge equipped with a writing nib; said intermediate connection member having a slit for the upward and downward sliding of the cartridge accommodated therein; said lower shaft which is coupled to the intermediate connection member, and which has a nib hole for extending/retracting the nib therethrough; said upper shaft having a thread which enables the cartridge accommodated in the intermediate connection member to move in accordance with the integrated rotation of the intermediate connection member and the lower shaft; and a ball shutter disposed within the lower shaft to open the nib-advancing path when the nib advances by the upward and downward sliding of the cartridge, and to shut the nib-advancing path when the nib moves backwards and to permit the nib to be accommodated in the closed space.</p> |
