Patent ID: 8407941

Claim:
A driving device for driving two door panels to synchronously move comprising: a rail rod having two wheels mounted respectively on two ends of the rail rod; a cord mounted between and around the wheels on the rail rod, being parallel to the rail rod and adapted to be mounted at a position at inner sides of the door panels; and multiple clamping assemblies securely connected to the cord, moveable relative to the rail rod and adapted to clamp the door panels, and each clamping assembly comprising a front clamping panel adapted to be mounted on an outer side of a corresponding one of the door panels; and a rear clamping panel adapted to be mounted on the inner side of the corresponding door panel and connected securely to the front clamping panel and the cord, wherein each clamping assembly further has at least one through hole defined through the front clamping panel of the clamping assembly; at least one combining hole defined through the rear clamping panel of the clamping assembly and corresponding respectively to the at least one through hole in the front clamping panel; and at least one fastener assembly mounted respectively through the at least one through hole in the front clamping panel and the at least one combining hole in the rear clamping panel to securely connect the front and rear clamping panels with each other; the rear clamping panel of each clamping assembly further has a cord mount formed on a side of the rear clamping panel opposite to the front clamping panel of the clamping assembly; and the cord mount on the rear clamping panel of each clamping assembly is mounted around the cord and has a curved cross section and a cord fastener mounted in the cord mount and abutting against the cord.