| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotary seal capable of easily rotating an endless printing belt. SOLUTION: The rotary seal includes: a freely rotatably disposed rotor 3; a support member 13 disposed below the rotor 3; and the endless printing belt 15 which has a plurality of prints 15a formed on the outer surface thereof and is stretched on the rotor 3 and the support member 13 in such a state that the endless printing belt 15 is engaged with the rotor 3. In the rotary seal, a cylindrical clamping barrel 30 whose bottom is opened is vertically slidably coated, an operation piece 30b which can be deformed inward is formed in the clamping barrel 30 and an engagement projection 30c facing and engaged with the outer surface of the endless printing belt is formed at the tip of the operation piece 30b. When the clamping barrel 30 is slid upward or downward, the endless printing belt 15 is rotated and the prints 15a are switched. COPYRIGHT: (C)2010,JPO&INPIT
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