Motor drive mechanism for an electronic deadbolt lock

摘要

An apparatus including a motor that has a rotatable output shaft extending outward from the motor and defining a rotational axis. The apparatus also includes a coupler that is coupled to the output shaft for rotation therewith, and a coil spring that is coupled to the coupler without external attachment means such that rotation of the coupler is transferred to the coil spring.

主权项

1. An apparatus comprising:
a motor including a rotatable output shaft extending outward from the motor and defining a rotational axis; a coupler coupled to the output shaft for rotation therewith, the coupler including a spring receiving portion having a recess extending linearly along the coupler and parallel to the rotational axis from a free end of the coupler; and a coil spring coupled to the coupler without external attachment means such that rotation of the coupler is transferred to the coil spring, the coil spring coupled to the coupler over the spring receiving portion and extending axially into the recess such that engagement of the coil spring with the recess from adjacent the free end limits rotation of the coil spring relative to the coupler during attachment of the coil spring to the coupler.