Locking pull handle dogging mechanism
AssigneeASSA ABLOY Accessories and Door Controls Group, Inc.
InventorsLuke E. Clay, Michael Connell, Sam Wiedner
Life of this patent
Estimating the term…
Abstract
A pull handle may include a chassis, a latch disposed at least partially in the chassis, a thumb turn, and a dogging fastener movably disposed on the thumb turn. The thumb turn may be rotatable between a locking position and an unlocking position, where the thumb turn is coupled to the latch such that when the thumb turn is in the locking position the latch is in an extended position and when the thumb turn is in the unlocking position the latch is in a retracted position. The dogging fastener may be configured to move between a dogging position and an undogging position, where in the dogging position the dogging fastener engages the chassis to inhibit rotation of the thumb turn.
Claims16
A pull handle comprising:
- a chassis including a handle portion configured to be grasped by an operator;
- a latch disposed at least partially in the chassis and configured to move between an extended position and a retracted position, wherein in the extended position the latch is configured to protrude out of the chassis;
- a thumb turn rotatable between a locking position and an unlocking position, wherein the thumb turn is coupled to the latch such that when the thumb turn is in the locking position the latch is in the extended position and when the thumb turn is in the unlocking position the latch is in the retracted position;
- and
- a dogging fastener disposed on the thumb turn and configured to move between a dogging position and an undogging position, wherein in the dogging position the dogging fastener engages the chassis to inhibit rotation of the thumb turn relative to the chassis.
A method of operating a pull handle, the method comprising:
- rotating a thumb turn of the pull handle from a locking position to an unlocking position to move a latch of the pull handle from an extended position to a retracted position;
- and
- moving a dogging fastener from an undogging position to a dogging position to engage a chassis of the pull handle, wherein engaging the chassis with the dogging fastener inhibits rotation of the thumb turn relative to the chassis.
Dependencies are inferred from the claim text.