| 摘要 |
<P>PROBLEM TO BE SOLVED: To facilitate a write mode releasing operation and to improve design property of a cylindrical outer peripheral surface in a writing tool made into in a use mode by operating a knock operation part. <P>SOLUTION: Write mode releasing members (11, 12) having release knobs (12) arranged above cylindrical parts (1, 2, 7, 8) and outside a knock operation part (17) are provided in a form to be able to move in the longitudinal direction of the cylindrical parts. When a user pulls up the release knob in an upper direction, a knock operation holding member (6) is moved in a right direction by profiling operation of a cam operation hole (11a) and a hemispherical cam surface (6a), and a use mode locking state between a corner flange (6b) and the step part (10c) of a knock member (10) till that time is released. <P>COPYRIGHT: (C)2011,JPO&INPIT |
