Bicycle saddle tightening device

Claim 1

A bicycle saddle tightening device comprising: an adjusting axle, said adjusting axle comprised of an upper half, and a lower half at a right angle formed into a lever, said upper half having an annular groove adjacent to a top end thereof and three eccentric circular blocks with one above another, said three eccentric circular blocks including a top eccentric circular block and a bottom eccentric circular block longitudinally aligned at two opposite ends, and an intermediate eccentric circular block disposed at an eccentric position 180° relative to said top and bottom eccentric circular blocks; a locating cylinder, said locating cylinder having two opposite through holes vertically aligned, and two projecting strips transversely extending outwards from two opposite ends thereof and arranged in line; a first eye bar, said first eye bar having an expanded head at one end formed into a loop; a second eye bar, said second eye bar screw having an expanded head at one end formed into an upper loop and a lower loop; two lock means respectively mounted on said first and second eye bars for securing them in place; and wherein: said upper half of said adjusting axle is inserted through said through holes and retained to said locating cylinder by a C-shaped retainer with the loop of said first eye bar mounted on said intermediate eccentric circular block and, and with the upper and lower loops of said second eye bar respectively mounted on said top and bottom eccentric circular blocks, permitting said first and second eye bars to be moved toward or apart from each other by rotating said adjusting axle on said locating cylinder.