| 摘要 |
PROBLEM TO BE SOLVED: To prevent a tip of refill from loosing when a refill with or without crimps is inserted in a casing and used for writing. SOLUTION: In a retractable writing implement where the tip of refill is made retractable from a tip member attached to the tip of the casing by attaching or detaching a rotor of the rotating cam mechanism provided at the rear part of the casing by pressing a knock member to and from the cam groove of the rotating cam mechanism, a cylindrical refill receiving body is inserted into the rotor and urged to the rear part of the casing by a spring. At the tip of the casing, an inner hole having deformed cross section capable of guiding the refill front part sliding back and forth in the casing is formed. |
