Brunswick Corporation

Life Fitness, LLC

Tomas F Leon, Deceased

Richard E Skowronski

George Kolomayets

Vincent C Adams

Kenneth F Lantz

Donald J Alexander

Eugene B Szymczak

Wade K Totzke

Edward W Minnich

Edward V Minnich

To improve tracking, an exercise treadmill is provided with a frame including molded plastic pulleys, having an integral gear belt sprocket, an endless belt extending around the pulleys and a motor operatively connected to the rear pulley to drive the belt. The pulleys are molded out of plastic and have a diameter of approximately nine inches. A mold and method for producing large diameter treadmill pulleys having an integrally molded sprocket are also disclosed. A deck underneath the running surface of the belt is supported by resilient members. A positive lateral belt tracking mechanism is used to correct the lateral position of the belt. A belt position sensor mechanism is used in combination with a front pulley pivoting mechanism to maintain the belt in the desired lateral position on the pulleys. The exercise treadmill also includes a lift mechanism with an internally threaded sleeve engaged to vertically aligned nonrotating screws. A user display of foot impact force on the belt is also provided.

Exercise treadmill

Growing community of inventors

Chicago, IL, United States of America

Tomas F Leon, Deceased