| 摘要 |
PROBLEM TO BE SOLVED: To engage a jack receiving tool and a quadrangular pyramid body between partition walls by providing the partition wall on respective inside as parts of a front structural body and a rear structural body forming the outside of an edge device. SOLUTION: A front structural body CA and a rear structural body CB forming the outside of an edge device C are mutually tightened by box nuts N. In addition, with regard to a directional control mechanism in the edge device C an edge jack F is integrally incorporated in a jack receiving tool G, which is supported on a partition wall H provided on the inside as a part of the front structural body CA. Next, a quadrangular pyramid body J is supported on a partition wall I provided on the inside as a part of the rear structural body CB, and the jack receiving tool G and the quadrangular pyramid body J are engaged by a recess and projection part C2. When rotation is performed in the direction of loosening the box nut N, it is out of the screw connection part of the rear structural body CB side, and the structural body CA is separated from the structural body CB. At the same time, the receiving tool G and the quadrangular pyramid body J are separated from each other. Thereby since they are supported on the partition wall respectively, connection working can be easily performed without falling after separation. |
