| 摘要 |
PURPOSE:To surely grip the sheath by sufficient grip force by providing each pair of specific inside pinching metallic fixtures and outside pinching metallic fixtures for pinching and attaching the sheath. CONSTITUTION:Each pair of inside pinching metallic fixtures 4 and outside pinching metallic fixtures 6 for pinching and attaching a sheath 2 are provided. In such a case, both the pinching metallic fixtures 4,6 consist of center parts 4a, 6a of a chevron shape, and plate parts 4c,6c extended to the left and the right directions from both ends of these center parts, the center parts 4a, 6a are formed so that the opposed surfaces of the inside pinching metallic fixture 4 and the outside pinching metallic fixture 6 become parallel to each other, and the plate parts 4c, 6c are fastened to each other. Accordingly, as for the center parts 4a,6a, the opposed surfaces of the inside pinching metallic fixture 4 and the outside pinching metallic fixture 6 come to parallel to each other, therefore, even if wall thickness of the sheath 2 is different, the sheath 2 is always pinched and attached in a state face-contacted with both the metallic fixtures 4,6. In such a way, the sheath is gripped surely by sufficient grip force. |
