Lock devices, systems and methods
AssigneeSchlage Lock Company LLC
InventorsAaron P. McKibben, Kenton Hayes Barker
Life of this patent
Estimating the term…
Abstract
Disclosed are various embodiments of lock devices, systems, and methods. A lock of the application can include an internal mechanism to permit backdriven operation and lost motion operation. In one form the lock can be made from an assembly of parts that have locating features that require one way installation/assembly. The lock can include an internal power source capable of driving electronics used to determine handedness of a door.
Claims30
A method of autohanding an electromechanical door lock including a locking mechanism, the method comprising:
- installing the electromechanical lock in either a left hand configuration or a right hand configuration, the configuration being unknown to the door lock;
- sensing a first position of the locking mechanism;
- evaluating whether the configuration of the lock can be determined based upon the first position;
- setting the configuration of the lock if it can be determined based upon the first position;
- electronically actuating the locking mechanism in a first direction and monitoring for at least one predetermined position of the locking mechanism and for a motor stall indication if the configuration of the lock cannot be determined based upon the sensing;
- if the at least one predetermined position is detected setting the configuration of the lock based upon the at least one predetermined position;
- upon detection of the motor stall indication setting an error state or electronically actuating the locking mechanism in a second direction;
- if actuating the locking mechanism in the second direction monitoring for the at least one predetermined position of the locking mechanism and for the motor stall indication;
- and
- if the at least one predetermined position is sensed setting the configuration of the lock according to the at least one predetermined position.
A non-transitory computer readable medium configured to store computer executable instructions comprising:
- actuator control instructions executable to control an actuator to apply force to a locking mechanism of a door lock in a locking direction or an unlocking direction;
- position sensing instructions executable to evaluate a state of an encoder including a plurality of selectable circuits, a first state of the plurality of circuits designating a first locking mechanism position associated with a left handed lock and a second state of the plurality of circuits designating a second locking mechanism position associated with a right handed lock;
- and
- lock handing setting instructions executable to determine whether the door lock is installed in a left hand configuration or a right hand configuration based upon information obtained through executing at least one of the position sensing instructions and the actuator control instructions.
An electromechanical door lock comprising:
- a locking mechanism actuatable between a locked position and an unlocked position;
- a motor operable to apply force to the locking mechanism in a locking direction and an unlocking direction via at least one gear;
- a knob operable to apply force to the locking mechanism in the locking direction and the unlocking direction;
- a position encoder configured to assume a plurality of states depending upon a position of the gear and a position of the knob;
- and
- a controller operable to control the motor to apply force to the locking mechanism, determine an operational state of the motor, receive information from the encoder indicating the position of the gear and the position of the knob, and determine whether the electromechanical lock is installed in a right hand configuration or a left hand configuration.
Dependencies are inferred from the claim text.