| 摘要 |
PROBLEM TO BE SOLVED: To facilitate the cleaning of a seal affixing surface and replacement in the case of a printing block by forming a stamp such that a specific formula is satisfied by the length of a main body guide groove, the compression close contact length of a spring, the length of a slide guide projection, and a length from a spring restraint flange to a wide diameter step-configured part. SOLUTION: A formula is made to be P<L+H+S in a relation of the length L of a guide groove 7 for the slide of a main body 1, the compression contact length H of a spring, the length S of a guide rib for the sliding movement of a slide 16 and a length from the spring restraint flange of the main body 1 to a wide diameter step-configured part. As a result, the guide rib and guide groove 7 are guided in a sliding manner at all times, so that the main body 1 never comes off. In this manner, the cleaning of a seal affixing surface and replacement in the case of a printing block are facilitated, the slide can be formed into a cylinder, its design is increased freely, fabrication can be done easily in terms of the reduced number of parts in its fabrication, and the sliding regulation of the main body becomes possible.
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