A more effective method of automatically milking animals in an automatic milking facility is disclosed. The door handle assembly comprises a primary actuator and a secondary actuator in operative communication with the secondary latch for selective deactivation thereof. The biasing portion shortens a dimension of the ring core in the axis direction only on the outer circumference side, and the biasing portion is located between the attachment portion of the ring core and a coil accommodation resin to accommodate a coil in the axis direction.