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A latch mechanism for a patio door having a narrow rectangular frame surrounding a window and slidable in a casing so that a vertical frame side abuts the casing when the door is closed. A pair of vertically spaced keepers on the casing are engagable by a pair of spaced latches on the door frame. Th

A latch mechanism for a patio door having a narrow rectangular frame surrounding a window and slidable in a casing so that a vertical frame side abuts the casing when the door is closed. A pair of vertically spaced keepers on the casing are engagable by a pair of spaced latches on the door frame. The latches are biased toward an open position, and are moved by the keepers to a latching position when the door is closed. Catches secure the latches in the latching position, and the door handles are operably connected to the catches by a pair of longitudinally movable tie bars and pivoting links. A locking cam gear is movable by a sliding rack actuator between an unlocked position clear of the tie bars and a locked position with a raised cam surface engaging the tie bars to prevent longitudinal movement of the tie bars.

대표청구항 ▼

A latch mechanism for a sliding patio door having a narrow rectangular frame surrounding a window, where a vertical one of said frame sides abuts a vertical casing portion in the door closed position, comprising: a handle mounted on said one vertical frame side; first and second vertically spaced ke

A latch mechanism for a sliding patio door having a narrow rectangular frame surrounding a window, where a vertical one of said frame sides abuts a vertical casing portion in the door closed position, comprising: a handle mounted on said one vertical frame side; first and second vertically spaced keepers fixed on said casing portion; first and second vertically spaced latches on said one frame side, said latches being movable from a first position clear of said keepers to a second position grasping said keepers upon closing of said door; means for biasing said latches toward their first position; an ear on each of said latches; latch catches biased toward said latches to engage said latch ears for retaining said latches in their second position; means mounting said handle for allowing slight movement of said handle when said handle is engaged to open said door; a first tie bar extending up said frame side from said handle and engaging the catch associated with the first latch; a second tie bar extending down said frame side from said handle and engaging the catch associated with the second latch; and means for biasing said tie bars longitudinally toward moving the catches away from engaging said latch ear in response to said slight handle movement.