| 摘要 |
PCT No. PCT/EP93/03279 Sec. 371 Date Jul. 7, 1994 Sec. 102(e) Date Jul. 7, 1994 PCT Filed Nov. 23, 1993 PCT Pub. No. WO94/12069 PCT Pub. Date Jun. 9, 1994.A jointed unit (1) has several adjacent elements (2, 3) connected to one another by a pair of connecting members (5, 6) situated at opposite ends in which they are connected so as to be able to rotate. The members (5, 6), which include the pair of adjacent elements (2, 3) are made integral with one another by a fastening bar (4) connected to the members (5, 6) by screws (7) in a reversible manner. In one embodiment, the members (5, 6) are a pair of links, each having two cylindrical blind holes (5c, 5d, 6c, 6d) into which studs (2c, 2d, 3c, 3d) engage and protrude from the ends of the elements (2, 3) to be connected together.
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