A retractor assembly for a cylindrical lockset comprises inner and outer retractors. Each of the retractors has a cam engaging surface to convert rotary motion from the inside door handle into linear latch-retracting motion. Inner and outer spindles having retractor activation cams are configured to bear upon cam surfaces of the inner and outer retractors to retract the latch. When the inner door handle is operated, the inner retractor acts directly upon the tailpiece of the latch bolt assembly to retract the latch. When the outer door handle is operated, the outer retractor presses on the inner retractor, causing it to retract the latch. If there is an attack, a blocker assembly engages with members formed in the outer retractor to render the outer retractor inoperative to move into a latch-retracting position without interfering with operation of the inner retractor to move into a latch-retracting position.

A transmission mechanism of handle lock set used for driving a latch to perform extension/retraction action includes a driving plate and a transmission plate. The driving plate includes a supporting portion having a transmission surface with an arc surface and a blocking surface with a flat surface. The driving plate is rotated to make the supporting portion swinging between a first position and a second position. The transmission plate further includes a protrusion having a contact surface. The transmission surface contacts the contact surface and pushes the protrusion to prevent the driving plate from being unavailable due to transmission dead spot occurrence when the supporting portion locates at the first position. The blocking surface contacts the contact surface of the protrusion to prevent the driving plate from over rotation for avoiding unavailable return when the supporting portion of the driving plate locates at the second position.

A transmission mechanism of handle lock set used for driving a latch to perform extension/retraction action includes a driving plate and a transmission plate. The driving plate includes a supporting portion having a transmission surface with an arc surface and a blocking surface with a flat surface. The driving plate is rotated to make the supporting portion swinging between a first position and a second position. The transmission plate further includes a protrusion having a contact surface. The transmission surface contacts the contact surface and pushes the protrusion to prevent the driving plate from being unavailable due to transmission dead spot occurrence when the supporting portion locates at the first position. The blocking surface contacts the contact surface of the protrusion to prevent the driving plate from over rotation for avoiding unavailable return when the supporting portion of the driving plate locates at the second position.

A handle set including a chassis and a handle mounted on the chassis. The handle includes a shank having a load bearing section, a primary actuating section, and a secondary actuating section. The chassis includes a housing, a support spindle, a primary actuator, and a secondary actuator. The support spindle is longitudinally coupled with the load bearing section, and the primary actuator is rotationally coupled with the primary actuating section of the handle. The handle set has a first configuration in which the secondary actuating section is engaged with the secondary actuator, and a second configuration in which the secondary actuating section is disengaged from the secondary actuator.

A handle set including a chassis and a handle mounted on the chassis. The handle includes a shank having a load bearing section, a primary actuating section, and a secondary actuating section. The chassis includes a housing, a support spindle, a primary actuator, and a secondary actuator. The support spindle is longitudinally coupled with the load bearing section, and the primary actuator is rotationally coupled with the primary actuating section of the handle. The handle set has a first configuration in which the secondary actuating section is engaged with the secondary actuator, and a second configuration in which the secondary actuating section is disengaged from the secondary actuator.

A gravity gate latch that is sized and configured to be positioned in the gap between the free end of a gate and a stationary object when the end of the gate is adjacent the stationary object to automatically engage a strike member on the gate. The gate latch has a pair of side plates that are spaced apart to define a space that encloses a lever actuating mechanism and a hook plate. The hook plate has a hook member that engages the strike member of the gate. The lever actuating mechanism has a pair of lever arms, which can be accessed from either side of the gate, that move the hook plate upward to disengage the strike member. A lock receiving member at the bottom of the gate latch receives a padlock to lock the gate latch. The padlock can also be accessed from either side of the gate.

An adapter and interface permits a standard mortise lock to drive top and bottom latch mechanisms of a multi-point lock system. An actuator permits in situ adjustment of the top and bottom vertical latch projections of adjusting these projections while the door is hung in the door frame. An installation tool assists in the installation of the vertical rods in a door. A connector and carrier secures the vertical rods to the actuator and permits verification of retention of the rods in a multi-point latching system. A latch dogging indicator allows for end-user adjustment between a single-point lock and a multi-point lock system when desired. These different aspects may be employed in combination or separately with other locking systems.

An adapter and interface permits a standard mortise lock to drive top and bottom latch mechanisms of a multi-point lock system. An actuator permits in situ adjustment of the top and bottom vertical latch projections of adjusting these projections while the door is hung in the door frame. An installation tool assists in the installation of the vertical rods in a door. A connector and carrier secures the vertical rods to the actuator and permits verification of retention of the rods in a multi-point latching system. A latch dogging indicator allows for end-user adjustment between a single-point lock and a multi-point lock system when desired. These different aspects may be employed in combination or separately with other locking systems.

The present invention relates to a mounting arrangement for fastening a shaft in a locking device, the mounting arrangement (1) comprising—a shaft (2) for insertion into a handle follower of a locking device; —a locking member (33) for fixating the shaft after insertion to prevent undesired removal from the handle follower, and—a release member (32) for releasing the locking member to enable desired removal of the shaft from the handle follower, wherein the locking member (33) is movable between a locking position for fixating the shaft in the handle follower and a release position, and wherein the release member (32) is operatively connected to the locking member for moving the locking member from the locking position to the release position. The invention also relates to a locking device (10) comprising such a mounting arrangement (1).

A dual action latch, having a latch handle, an elongate bolt, a cam, a latch housing, and a biasing device, for installation on one side of door. The latch handle includes a lifting portion and a lever arm. The latch housing has a lever arm aperture through which the lever arm of the latch handle passes and a bolt guide for slidably receiving the elongate bolt. The latch handle is movably attached to the latch housing. With the latch handle moved, the lever arm withdraws the elongate bolt into the latch housing. Independently, when the cam is rotated by a separate handle on the other side the door, the cam plate likewise withdraws the elongate bolt into the latch housing.