Exit device trim locking

Patent metadata

Field	Value
Publication number	US-11414892-B2
Application number	US-202016826943-A
Country	US
Kind code	B2
Filing date	Mar 23, 2020
Priority date	Dec 3, 2019
Publication date	Aug 16, 2022
Grant date	Aug 16, 2022

Abstract

An exemplary trim lock device is configured for use with a trim comprising a lift finger, and generally includes a housing, a blocking member, and a lock actuator. The blocking member includes a projection, and is rotatably mounted to the housing for rotation between a blocking position in which the projection blocks actuating movement of the lift finger and an unblocking position in which the blocking member does not block actuating movement of the lift finger. The lock actuator is operable to rotate the blocking member between the blocking position and the unblocking position.

First claim

What is claimed is:

1. An exit device assembly configured for mounting to a door having an egress side and a non-egress side opposite the egress side, the exit device assembly comprising:
an electrified door lock device operable to selectively prevent opening of the door, the electrified door lock device including an electronic actuator operable to transition the electrified door lock device between a locked state and an unlocked state;
a pushbar assembly configured for mounting to the egress side of the door, the pushbar assembly comprising a drive assembly, the drive assembly including a pushbar operable to actuate the drive assembly to thereby permit opening of the door; and
a mode selector installed to the pushbar assembly, the mode selector comprising:
an actuating mechanism configured to transition the mode selector between a locking state and an unlocking state;
a sensor configured to sense the locking state or the unlocking state of the mode selector; and
control circuitry in communication with the sensor and the electrified door lock device, wherein the control circuitry is configured to transmit a lock signal when the mode selector is in the locking state, and wherein the control circuitry is configured to transmit an unlock signal when the mode selector is in the unlocking state;

wherein the electronic actuator is configured to transition the electrified door lock device from the unlocked state to the locked state in response to the lock signal; and
wherein the electronic actuator is configured to transition the electrified door lock device from the locked state to the unlocked state in response to the unlock signal.

2. The exit device assembly of claim 1 , wherein the mode selector further comprises an indicator device;
wherein the indicator device is configured to display a locked indicium when the mode selector is in the locking state; and
wherein the indicator device is configured to display an unlocked indicium when the mode selector is in the unlocking state.

3. The exit device assembly of claim 2 , wherein the indicator device comprises a mechanical indicator device, the mechanical indicator device having a lock-indicating position in which the locked indicium is visible via a window in the pushbar assembly, the mechanical indicator device having an unlock-indicating position in which the unlocked indicium is visible via the window.

4. The exit device assembly of claim 3 , wherein the control circuitry comprises a second electronic actuator configured to place the indicator device in the lock-indicating position when the mode selector is in the locking state and to place the indicator device in the unlock-indicating position when the mode selector is in the unlocking state.

5. The exit device assembly of claim 1 , wherein the actuating mechanism comprises a mechanical actuating mechanism having a locking position corresponding to the locking state and an unlocking position corresponding to the unlocking state;
wherein the sensor comprises a position sensor operable to sense a position of the mechanical actuating mechanism; and
wherein the control circuitry is configured to transmit the lock signal in response to the position sensor sensing the locking position of the mechanical actuating mechanism.

6. The exit device assembly of claim 5 , wherein one of the lock signal or the unlock signal comprises an electrical current; and
wherein the other of the lock signal or the unlock signal comprises absence of the electrical current.

7. The exit device assembly of claim 1 , wherein the electrified door lock device has a default state and a non-default state;
wherein the electrified door lock device has an electric locking mode in which the default state is the unlocked state and the non-default state is the locked state;
wherein the electrified door lock device has an electric unlocking mode in which the default state is the locked state and the non-default state is the unlocked state;
wherein one of the lock signal or the unlock signal comprises an electrical current, and wherein the electronic actuator is configured to transition the electrified door lock device from the default state to the non-default state in response to the electrical current; and
wherein the other of the lock signal or the unlock signal comprises absence of the electrical current, and wherein the electronic actuator is configured to transition the electrified door lock device from the non-default state to the default state in response to absence of the electrical current.

8. The exit device assembly of claim 7 , wherein the electrified door lock device further comprises a switch operable to change the electrified door lock device between the electric locking mode and the electric unlocking mode.

9. A retrofit kit configured for use with an exit device assembly comprising a pushbar assembly installed to a first side of a door, the retrofit kit comprising:
a retrofit cover plate configured to replace an existing cover plate of the pushbar assembly, the retrofit cover plate comprising a window; and
a mode selector mounted to the retrofit cover plate, the mode selector comprising:
an actuating mechanism operable to transition a locking/unlocking state of the mode selector between a locking state and an unlocking state;
mode selector control circuitry configured to sense, via a sensor in communication with the mode selector control circuitry, the locking/unlocking state of the mode selector and to transmit a lock/unlock signal corresponding to the sensed locking/unlocking state of the mode selector; and
an indicator device aligned with the window, the indicator device configured to display locked/unlocked indicia corresponding to the locking/unlocking state of the mode selector.

10. A retrofit kit configured for use with an exit device assembly comprising a pushbar assembly installed to a first side of a door, the retrofit kit comprising:
a retrofit cover plate configured to replace an existing cover plate of the pushbar assembly, the retrofit cover plate comprising a window; and
a mode selector mounted to the retrofit cover plate, the mode selector comprising:
an actuating mechanism operable to transition a locking/unlocking state of the mode selector between a locking state and an unlocking state;
mode selector control circuitry configured to transmit a lock/unlock signal corresponding to the locking/unlocking state of the mode selector; and
an indicator device aligned with the window, the indicator device configured to display locked/unlocked indicia corresponding to the locking/unlocking state of the mode selector;

wherein the exit device assembly further comprises a trim installed to a second side of the door opposite the first side of the door;
wherein the retrofit kit further comprises a modular electronic lock mechanism configured for installation to the trim; and
wherein the modular electronic lock mechanism comprises an electronic actuator operable to transition a locked/unlocked state of the trim between a locked state and an unlocked state in response to receiving the lock/unlock signal.

11. The retrofit kit of claim 10 , wherein the modular electronic lock mechanism further comprises a lock mechanism electrical connector electrically connected with the electronic actuator;
wherein the mode selector further comprises a mode selector electrical connector electrically connected with the control circuitry; and
wherein the retrofit kit further comprises a wired connection comprising:
a first electrical connector configured to mate with the lock mechanism electrical connector;
a second electrical connector configured to mate with the mode selector electrical connector;

Assignees

• Schlage Lock Co Llc

Inventors

• Holtgrewe Zachary
• Eickhoff Brian C

Classifications

• E05B63/04

  for alternative use on the right-hand or left-hand side of wings · CPC title

• E05B47/0012

  with rotary electromotors (actuators with rotary electromotors per se H02K7/06, H02K23/68) · CPC title

• E05B2047/0067

  Monitoring · CPC title

• E05B41/00

  Locks with visible indication as to whether the lock is locked or unlocked {(indicator lights E05B17/10)} · CPC title

• E05B47/023

  the bolt moving pivotally or rotatively · CPC title