Patent ID: 8480022

Claim:
A fly reel spool rotatably coupled with a frame mounted on a fishing rod to wind a fish line, comprising: a rotary frame rotatably coupled inside the frame; a winding drum having a ball-catching protrusion on an inner circumference thereof coupling with the rotary frame, wherein the winding drum is configured such that the fish line is wound on or unwound from an outer circumference thereof; a locking ball installed in an outer circumference of the rotary frame to protrude from and retract into the rotary frame; and elastic means for elastically holding the locking ball so that the locking ball protrudes from the outer circumference of the rotary frame, whereby the locking ball is caught by one touch on the ball-catching protrusion on the inner circumference of the winding drum when the rotary frame is coupled with the winding drum.