| 摘要 |
PROBLEM TO BE SOLVED: To provide an eccentric fastener which can be easily, inexpensively and not more intricately manufactured than a bolt fastener having a similar wedging means. SOLUTION: A bracket 7 is secured to a crosspiece 11. A crosswise oval hole 12 and the longitudinal oval hole 12 are arranged in the horizontal direction in the crosspiece 11. A regular square head 9.1 of the bolt 9 is fitted in the oval hole 12 to prevent the bolt 9 from rotating. The bracket 7 has a projection 7.1 functioning to center the bracket 7 by the crosspiece 11. A receptacle hole 7.2 is installed in the bracket 7. The diameter of an eccentric element 8 functioning as the wedging means meets a receptacle hole 7.2 of a little greater diameter, and an eccentric element 8 is fitted into the receptacle hole 7.2. The eccentric element 8 rotates around the bolt 9, and the eccentricity pushes itself into the receptacle 7.2. When a nut is screwed, the eccentric element 8 rotates around the bolt 9, and pushes itself into the receptacle hole 7.2 by the eccentricity. COPYRIGHT: (C)2006,JPO&NCIPI |
