Patent ID: 7334500

Claim:
A pedal crank comprising: a crank arm including a first end having a hole formed therein, a crank shaft for rotatably attaching to a bicycle frame, and including a first end engaged into said hole of said crank arm, and means for expanding said first end of said crank shaft to engage with said crank arm, and to secure said crank shaft to said crank arm, said expanding means including a locking member engaged into said first end of said crank shaft and having an inclined outer peripheral surface formed thereon for engaging with said crank shaft, and for expanding said first end of said crank shaft when said locking member is moved relative to said crank shaft, and said expanding means including a fastener having a first end threaded with said locking member, for moving said locking member relative to said crank shaft when said fastener is rotated relative to said crank shaft.