Patent ID: 8950771
Filing Date: 2015-02-10
Classification: B62J,B62K

Abstract:
1. A bicycle frame comprising: a seat tube wherein a main tube of a saddle pillar of a saddle may be inserted by at least portions thereof, wherein the main tube is adapted for translatory movement and height-adjustability relative to the seat tube; the seat tube further comprising a form-fit rotation prevention means fastened to the seat tube; a switchable locking device for the main tube fastened to the seat tube; wherein the saddle pillar comprises a pipe integral with the saddle which is adapted for translatory movement and height-adjustability relative to the main tube, and which is inserted in an upper end portion of the main tube and adapted to be clamped thereto; wherein the form-fit rotation prevention means prevents rotation of the saddle when a height of the saddle is adjusted; wherein the form-fit rotation prevention means and the switchable locking device are combined in one fixation device by at least portions thereof; and wherein the fixation device comprises an elastic member supported on the fixation device and applies a lifting force to the main tube.