| 摘要 |
The present invention describes a joiner including at least one engaging member, a screw threaded shaft passing through the engaging member, at least one nut threadably engaging the shaft, a first gear member adapted to receive the screw threaded shaft, a second gear member positioned to interengage with the first gear member and having a tool engaging means, both the first gear member and second gear member being located substantially within the engaging member whereby a turning of the second gear with a standard tool fitting, facilitates a tightening of the joiner and wherein the first engaging member further includes a securing means to plvofally hold the first gear member. |
