| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a neck joint structure allowing stable fixing of a head part to a neck part regardless of a state that a neck joint is bent or that the neck joint is not bent, and allowing large bending of the neck joint. <P>SOLUTION: In this neck joint structure, the head part and the neck part are configured by different members, the head part has a through-hole opening in a face facing to the neck part, the neck part has a through-hole opening in a face facing to the head part, and the head part and the neck part are connected such that the head part and the neck part pull each other by an elastic/resilient body stretched between the respective through-holes. In the neck joint structure, a joint member is provided between the head part and the neck part, the joint member is formed with a through hole communicating between the through-hole of the head part and the through-hole of the neck part, the elastic/resilient body stretched between the head part and the neck part is put through the through hole, and the communication hole of the joint member is formed such that a width becomes larger as it goes from the head part to the neck part side. <P>COPYRIGHT: (C)2013,JPO&INPIT |
