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US 12,442,223 B1Granted
Exit device assembly
Assigneedormakaba USA Inc.
InventorsBrian H. Hood, Juan Alvarado, Jason Clifford
Life of this patent
Estimating the term…
Abstract
An exit device including an intermediate transmission assembly transmitting the translation of an input into a rotational vertical rod output is disclosed. An upper door latch receiving a rotational vertical rod input to actuate an upper door latch from a latched position to an unlatched position is further disclosed. A lower latch receiving a rotational vertical rod input to actuate a lower latch from a latched position to an unlatched position is additionally disclosed.
Claims23
An egress point, comprising:
- a door frame defining an opening allowing egress;
- a door connected to the door frame, the door rotatable between a closed position blocking pedestrian egress through the door frame and an open position allowing pedestrian egress through the door frame;
- and
- an exit device, comprising:
- at least one latch having a latched position operable to secure the door in the closed position, the latch having an unlatched position allowing the door to be moved from the closed position toward the open position;
- a push bar extending laterally on the door, the push bar moveable toward the door to actuate the latch from the latched position to the unlatched position;
- a vertical rod connecting the push bar to the latch, a push on the push bar moving the push bar toward the door and thereby rotating the vertical rod through a rotation to actuate the latch from the latched position to the unlatched position;
- and
- an intermediate transmission assembly, comprising:
- an input undergoing a translation in response to the push bar receiving the push to move the push bar toward the door;
- and
- a rotatable output undergoing a rotation about a rotational axis in response to the translation of the input, the rotational axis of the rotatable output extending in a direction from the output towards the at least one latch.
9 more elements
An exit device assembly, comprising:
- at least one latch having an extended, latched position, and a retracted, unlatched position;
- a push bar translatable from a rest position to an actuated position by a push on the push bar;
- a vertical rod connecting the push bar to the latch, a push on the push bar moving the push bar from the rest position to the actuated position and thereby rotating the vertical rod to actuate the latch from the extended, latched position to the retracted, unlatched position;
- and
- an intermediate transmission assembly operatively coupled between the push bar and the vertical rod, wherein the intermediate transmission includes a first stop and a second stop, each of the first stop and the second stop configured to set a travel extent of the vertical rod,
- wherein the-intermediate transmission assembly further comprising:
- an input undergoing a translation in response to the push bar receiving the push to translate the push bar from the rest position to the actuated position;
- and
- a rotatable output undergoing a rotation about a rotational axis in response to the translation of the input.
6 more elements
An exit device assembly, comprising:
- at least one latch having an extended, latched position, and a retracted, unlatched position;
- a push bar translatable from a rest position to an actuated position by a push on the push bar;
- a vertical rod connecting the push bar to the latch, a push on the push bar moving the push bar from the rest position to the actuated position and thereby rotating the vertical rod to actuate the latch from the extended, latched position to the retracted, unlatched position;
- and
- an intermediate transmission assembly operatively coupled between the push bar and the vertical rod, wherein the intermediate transmission includes a first stop and a second stop, each of the first stop and the second stop configured to set a travel extent of the vertical rod;
- wherein the first stop is at a first radial distance from an axis of rotation of the vertical rod when the vertical rod is rotated to actuate the latch to the extended, latched position, and wherein the first stop is at the first radial distance from the axis of rotation of the vertical rod when the vertical rod is rotated to actuate the latch to the retracted, unlatched position.
3 more elements
Dependencies are inferred from the claim text.