| 20100190598 | CHAIN WITH TOOTH TYPE ROLLERS - A chain with tooth type rollers comprises a plurality of links that are levelly arranged and horizontally overlapped with each other, a plurality of pins for connecting the overlapped portions of the adjacent links and a plurality of tooth type rollers taking the respective pin as a center and positioned between the two parallel link plates of one of the links. Therein, each of the tooth type rollers is drivingly connected to the adjacent link plates. Each of the tooth type rollers has a combining portion synchronously rotating with the links and an outstanding portion protruded from the combining portion toward a chain wheel and inserted into one of tooth spaces of the chain wheel. By changing the structure of the rollers, the disclosed chain has the advantages of long service life, low operation noise and high driving efficiency. | 07-29-2010 |
