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US 10,364,592 B2Granted
Sensor assemblies for locks
AssigneeSchlage Lock Company LLC
InventorsSundar Raj Dore Vasudevan, Dilip Bangaru, Adam Michael Litwinski, Allen Madrid
Life of this patent
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Abstract
A locking assembly including first and second hubs rotatably mounted in a case, a latch assembly which retracts in response to rotation of either of the hubs, and a locking member which selectively prevents rotation of at least one of the hubs. A sensor assembly is associated with at least one of the hubs, and is configured to transmit a signal in response to rotation of the at least one hub.
Claims23
A locking assembly, comprising:
- a case;
- a first hub rotatably mounted in the case and having a first home position and a first rotated position;
- a second hub rotatably mounted in the case and having a second home position and a second rotated position;
- a locking member aligned with the first hub and having a locking position wherein rotation of the first hub is prevented, and having an unlocking position wherein rotation of the first hub is enabled;
- and
- a sensor assembly, including:
- a first sensor associated with the first hub and operable to transmit a first signal in response to one of the first home position and the first rotated position, wherein the first sensor comprises a first microswitch including a first body, at least one first terminal, and a first leaf spring associated with the first hub;
- a second sensor associated with the second hub and operable to transmit a second signal in response to one of the second home position and the second rotated position, wherein the second sensor comprises a second microswitch including a second body, at least one second terminal, and a second leaf spring associated with the second hub;
- a third sensor associated with the locking member and operable to transmit a third signal in response to one of the locking position and the unlocking position, wherein the third sensor comprises a third microswitch including a third body, at least one third terminal, and a third leaf spring associated with the locking member;
- and
- a printed circuit board on which terminals of each of the first, second, and third sensors are mounted;
- wherein each terminal is electrically connected to a controller of a control circuit;
- wherein the third sensor is mounted on the printed circuit board between the first sensor and the second sensor to form a single unit;
- and
- wherein the third leaf spring is bent about the third body such that an engaging segment of the third leaf spring extends longer than the first leaf spring and the second leaf spring and is positioned between the third body and the locking member.
12 more elements
A locking assembly, comprising:
- a case;
- a hub assembly mounted in the case, the hub assembly comprising:
- a first hub rotatably mounted in the case and having a first home position and a first rotated position;
- and
- a second hub rotatably mounted in the case and having a second home position and a second rotated position;
- a locking member aligned with the first hub, the locking member having a locking position in which the locking member prevents rotation of the first hub, and the locking member having an unlocking position in which the locking member does not prevent rotation of the first hub;
- a sensor assembly positioned adjacent the hub assembly, the sensor assembly comprising:
- a printed circuit board;
- a first sensor mounted to the printed circuit board and aligned with the first hub, wherein the first sensor is configured to transmit a first signal in response to one of the first home position and the first rotated position;
- a second sensor mounted to the printed circuit board and aligned with the second hub, wherein the second sensor is configured to transmit a second signal in response to one of the second home position and the second rotated position;
- and
- a third sensor mounted to the printed circuit board between the first sensor and the second sensor, wherein the third sensor is aligned with the locking member and is configured to transmit a third signal in response to one of the locking position and the unlocking position, wherein the third sensor includes a body portion and a leaf spring, wherein the leaf spring is bent about the body portion such that an engaging segment of the leaf spring is positioned between the body portion and the locking member;
- wherein the third sensor is mounted on the printed circuit board between the first sensor and the second sensor to form a single unit;
- and
- a controller in communication with the sensor assembly and configured to store data relating to a request to enter condition in response to the first signal, to store data relating to a request to exit condition in response to the second signal, and to store data relating to a locked condition in response to the third signal.
12 more elements
Dependencies are inferred from the claim text.