Patent ID: 7629525

Claim:
A pedal assembly comprising: a pedal having a front end thereof connected with a first end of a chain and a rear end of the pedal connected to a heel plate, the pedal being pivotable at the rear end thereof; a rear board connected to an underside of the heel plate and two connection portions located on two sides of the rear board; a base having two posts extending upward from two ends thereof and a shaft connected between the two posts, a locking member connected to the shaft and a beater connection portion connected to the locking member, a second end of the chain connected to the locking member; a front board located beneath the base and having an extension portion on each of two sides of the front board, the extension portions each having a passage defined longitudinally therethrough, an inclined restriction hole defined in each of the extension portions and communicating with the passage corresponding thereto, and two frames each having an adjusting section on a first end thereof and the adjusting section inserted into the passage, an adjusting screw extending through the inclined restriction hole and contacting against the adjusting section, a second end of the each of the frames connected to the connection portion on the rear board corresponding thereto.