Patent ID: 8424963

Claim:
A saddle angle adjusting device for a bicycle having a height adjustment unit between a frame and a saddle, the saddle angle adjusting device comprising: a frame coupling block coupled at a lower end thereof to an upper portion of the height adjustment unit; a saddle coupling post coupled at a lower end thereof to an upper end of the frame coupling block in such a way that the saddle coupling post rotates forwards and backwards, and coupled at an upper end of the saddle coupling post to the saddle, with a through hole formed in an upper portion of the saddle coupling post; an angle adjustment gear having a plurality of teeth, with a hole formed in a central portion of the angle adjustment gear and having the same size as the through hole; an angle fixing plate comprising a fan-shaped plate, with a plurality of teeth formed along an arc of the fan-shaped plate to engage with the angle adjustment gear, the angle fixing plate being fixedly mounted to the frame coupling block; and a gear holding screw passing through the hole formed in the central portion of the angle adjustment gear and the through hole in the saddle coupling post, and controlling coupling strength between the angle adjustment gear and the saddle coupling post, wherein the angle adjustment gear may rotate and the saddle coupling post may be moved forwards and backwards by loosening the gear holding screw to reduce the coupling strength thereof, so that an angle of the saddle coupling post is adjustable as desired, and the plurality of teeth of the angle adjustment gear engages with the plurality of teeth of the angle fixing plate by tightening the gear holding screw to increase the coupling strength thereof, so that the saddle coupling post is set to a desired angle.