| 摘要 |
PURPOSE: To improve impact resistance and functions such as preventing ink from back-flowing and dropping. CONSTITUTION: An opaque tail cock 2 the diameter of which is smaller than the bore of an ink receiving tube the front end of which reaches and enters a follower 4 or ink is installed on the rear end side of the ink receiving tube 1. An air current passage is formed in the tail cock or between the tail cock and the ink receiving tube. In addition, a mechanism which presses slightly a ball, a writing part, by a spring fixed in a holder 7 is combined to prevent ink from back-flowing and dropping. |
