| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pressurizing-type writing utensil with a refill to be pressurized when the refill is given a pressurizing force. <P>SOLUTION: This pressurizing-type writing utensil comprises: the refill 20 which has a writing part 22 at the forward end and an opening at the rear end, and is so designed as to discharge an internally packed writing liquid 23 from the writing part 22; a holder 30 fitted annularly at the rear end side of the refill 20; a cylinder 50 which covers the holder 30 from the rear side and retains the holder 30 so as to allow the latter to move back and forth; and a first urging member 60 which urges the holder 30 forward to the cylinder 50, all these components being housed inside a barrel 10. In addition, a pressurizing chamber E which communicates with the rear end opening of the refill 20, is secured between the holder 30 and the cylinder 50. Besides, it is so arranged that the pressurizing chamber E can be compressed by the receding operation of the holder 30 which moves relatively with the cylinder 50. <P>COPYRIGHT: (C)2012,JPO&INPIT |
