CYCLE COMPRISING A QUICK ADJUSTMENT DEVICE AND SEAT ADJUSTMENT DEVICE FOR SUCH A CYCLE.

摘要

Cycle comprising an open clamping collar (13) arranged around the guide tube (8) of the seat post (10) and having first and second ends (14, 15) capable of approaching each other by clamping the guide tube (8) on the seat post (10), the first end having a first helical cam surface (25). An actuating lever (12) is pivotally mounted on the first and second ends of the clamp and has a second helical cam surface (26) disposed opposite the first helical cam surface. An open sliding washer (27) is interposed between the first and second helical cam surfaces. The first and second helical cam surfaces and the slip ring (27) each have a frustoconical shape.