| 摘要 |
PURPOSE: A manual opening and closing apparatus for an automatic door is provided to assemble and disassemble a motor and a clutch by pulling the chain. CONSTITUTION: A manual opening and closing apparatus for an automatic door comprises a housing, a bearing(8), a chain wheel assembly, a guide cam(6), a cam rod(3), a cam rod rotating pin(4), a cam rod guide pin(5), a clutch(12), a compressed spring, and a chain. A drive motor is attached to one side of the housing. The bearing is fixed to the inner circumference of the housing. The chain wheel assembly is coupled with the housing to be rotated. The chain wheel assembly is comprised of a chain wheel(2) and a wheel cam(7). The guide cam is fixed with the other side of the housing. The cam rod passes through the center of the guide cam and the chain wheel assembly. The cam rod guide pin is fixed to the lower part of the cam rod. The clutch is fixed to the upper end of the cam rod and is connected to the drive shaft of the motor. |
