| 摘要 |
PURPOSE:To constitute the title product so that it can be detached easily and a joint is not disconnected, by a method wherein the product possesses joining structure where a scape part provided on one side part of the joint is fitted into a fitting hole provided into the other side parts, the scape part is divided longitudinally and almost evenly into two by a notched groove which is faced toward a base part from the tip part and the divided tip parts each are provided with detents projected from the side. CONSTITUTION:A scape part 1 is formed integrally on a joint 2 of one side parts and a detent part 3 is provided integrally on the whole circumference of the side of the tip part 5 of the scape 1. Then the scape 1 is provided with a notched groove 4 by facing toward a base part 2 from the tip part 5 and divided into two of scape pieces 1a, 1b. On the one hand, the other joint 7 possesses a fitting hole part 6 and when the center of the fitting hole part 6 is put on the tip part 5 of the scape 1 and the joint 7 is pushed against the tip part 5 in the direction of the base part 2, the joint 7 is fitted over the scape part 1, the undersurface 32 of the detent part 3 is caught on the top 71 of the joint 7 and becomes hard to disconnect from the scape 1. At the time of extraction of the joint 7 out of the scape 3, the joint 7 can be disconnected from the scape part 1 by passing the detent part 3 through the fitting hole part 6 by narrowing the detent part 3 with fingers. |
