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US 2018/0320413 A1Published application
Gear system for deadbolt actuation
OwnerWai P. Wonginventor
Life of this patent
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Abstract
A gear system for a deadbolt lock including a planetary gear set. The gear system may include a thumb turn direct-drive system to bypass a motor, and an overload protection system to prevent damage to the motor in the event of a jam.
Claims29
A deadbolt lock assembly, comprising:
- a gear train including a planetary gear set;
- and
- a deadbolt operatively coupled to the planetary gear set, wherein the planetary gear set is configured to move the deadbolt in response to actuation of the planetary gear set.
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A deadbolt lock assembly, comprising:
- a gear train including a planetary gear set, the planetary gear set including a ring gear;
- a deadbolt operatively coupled to the planetary gear set, wherein actuation of the planetary gear set is configured to move the deadbolt in response to actuation of the planetary gear set;
- a hand operated drive actuator operatively coupled to the deadbolt to move the deadbolt between an extended position and a retracted position;
- and
- a clutch coupled to the hand operated drive actuator, wherein the clutch is operatively coupled to the ring gear, wherein actuation of the hand operated drive actuator causes the clutch to rotate the ring gear and move the deadbolt.
2 more elements
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A deadbolt lock assembly, comprising:
- a gear train;
- a deadbolt operatively coupled to the gear train;
- a motor operatively coupled to the gear train, wherein rotation of the motor causes rotation of the gear train to move the deadbolt;
- and
- an overload protection arrangement cooperating with the gear train, the overload protection arrangement configured to decouple at least a portion of the gear train from the motor when a resistance to deadbolt movement exceeds a predetermined threshold.
2 more elements
Dependencies are inferred from the claim text.