| 摘要 |
<p>PROBLEM TO BE SOLVED: To eliminate the occurrence of a gap in a joining part, and improve an appearance design, by providing a female element composed of recessed and protruded parts, and a male element composed of a protruded part fittedly engaging with the recessed part of the male element, and a recessed part facing the protruded part of the female element. SOLUTION: A female element 10 is provided; which is composed of curved surfaces 6a and 6b with the center of a hinge pin as the center point 02, a recessed part 8 which is orthogonal to the center line 01 in a plane, and in which linear surfaces 7a and 7b connected to the curved surfaces 6a and 6b are formed in the same direction, and a protruded part 9; is provided on the bottom surface of the recessed part 8 and the tip surface of the protruded part 9. A male element 13 is provided which is composed of curved surfaces 6c and 6d making the center of the hinge pin as the center point 02 toward a side surface 2c parallel to the center line 01, a protruded part 11 orthogonal to the center line 01 in a plane, making linear surfaces 7c and 7d connected to the curved surfaces 6c and 6d from in the same direction, and a recessed part 12 facing the protruded part 9 of the female element 11. This can foldably join both the elements 10 and 13 to improve an appearance design.</p> |
