Angle adjusting device for bicycle saddle

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 fixing unit comprising a pair of fan-shaped plates attached to left and right sides of the frame coupling block, and a pair of rectangular plates respectively coupling front and rear edges of the fan-shaped plates to each other, with a plurality of holes formed along an arc of each of the fan-shaped plates;
• and
• an angle adjusting unit coupled to the saddle coupling post, a predetermined part of the angle adjusting unit being detachable from the holes in the angle fixing unit to control rotation of the saddle coupling post.