Seikoh Giken Co., Ltd.

Takanori Itagaki

Masayuki Jibiki

When a second housingand a first housingare approached to each other along an axial direction, a body portionof a second fixing memberbegins to enter in an openingof the second housing. Since a vertical wall surfaceand a cylindrical surfaceare formed on the openingto substantially match the outer shape of the rear end of the body portion, when the second housingis inserted to the first housingwhile keeping the relative angle until the second housingabuts on a first fixing memberwhich closes the opening and rotating the second housingwith respect to the first housingby 90&#xb0;, a protrusionfaces and enters a recessed engagement portionformed on the vertical wall surface. Thus, the protrusionand the recessed engagement portionare fitted and fixed.

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Matsudo, Japan

Takanori Itagaki