Patent attributes
A dogging device includes a base mounted in a housing of a latch assembly. The base includes a hole through which a shaft rotatably extends. A limiting keyway extends from the hole and receives and limits rotation of a shaft key on the shaft. A dogging member includes a through-hole receiving the shaft. A keyway extends from the through-hole and receives the shaft key of the shaft, allowing joint rotation of the shaft and the dogging member. By engaging a tool with a driving groove in an end of the shaft or by utilizing a lock core key to turn a lock core that directly pivots the dogging member, the dogging member is pivotable between a first position engaged with a latching/unlatching control rod of the latch assembly to lock a latch bolt in a retracted state and a second position disengaged from the latching/unlatching control rod.