| 摘要 |
PROBLEM TO BE SOLVED: To provide a stamping unit, the ink impregnating amount of which is increased and the permeation of ink to a sealing material is quicker than ever. SOLUTION: A main holder 2 mounted on a cylindrical stamping unit 1 holds the sealing material 11, a lower ink impregnator 12 and an upper ink impregnator 13. The columnar center of the upper ink impregnator 13 in the sealing material portion held by the main holder 2 is formed into a columnedly bored cylinder (an ink guiding hole) 13a. In the main holder 2, an ink guiding port 2b equipped at the lower end part of the main holder 2 is so constituted as to pass through the inside of the cylinder 13a and abut against the top surface of the lower ink impregnator 12. Accordingly, the ink filled in the main holder 2 is quickly impregnated through the ink guiding port 2b to the lower ink impregnator 12. In addition, the excess ink, which is not impregnated in the lower ink impregnator 12, is sucked up to the upper ink impregnator 13. COPYRIGHT: (C)2004,JPO&NCIPI
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