| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problem of a forced insertion design in which one of the barrel members is forcibly inserted into the other member which is helically grooved, so that due to this stubborn forcing, both members can hardly be removed from each other and if the removal is carried out, one member tends to be scraped by the helical flight, and consequently, the connection tends to become imperfect despite the attempt to connect the members together by forcing, and the members are connected together as deviated from their proper position without positioning, specifically in the connection structure of the mutually polygonal barrel members as shown in Fig. 8 or Fig. 9. <P>SOLUTION: A barrel connecting structure is made up of one odd-shaped member and the other odd-shaped member of the barrel which are detachably connected with each other without restrictions. At least one of the members is covered with an elastic body and the end part of the elastic body is exposed from the covered member. The exposed part is brought into contact with the other member of the barrel, and one member and the other member of the barrel are made to urge each other with the help of a resilient member 16. <P>COPYRIGHT: (C)2011,JPO&INPIT |
