| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve a problem that an inner cylinder and an outer cylinder are connected by a retaining ring and an elastic body, i.e., in a state that the inner cylinder is held by the retaining ring and the elastic body, but if a core may be broken inside a mouthpiece part, the inner cylinder and the outer cylinder cannot be disassembled and a product itself must be discarded. <P>SOLUTION: This shaft coupling structure is provided for connecting a shaft cylinder composed of at least an outer shaft, a rotating shaft and an inner shaft which is provided detachably from the outer shaft. The outer shaft, the rotating shaft and the inner shaft have linear slits, L-shaped slits or protrusions formed in the respective members to connect and fix them. These slits, L-shaped slits and protrusions are engaged with each other, and the rotating shaft is arranged to be rotatable relative to the outer shaft and inner shaft. <P>COPYRIGHT: (C)2011,JPO&INPIT |
