A multipoint lock is described. The multipoint lock includes a main latch. The main latch has a latched position where the main latch is configured to extend a first distance from an unhinged edge of a door panel. The main latch is configured to be retractable toward the unhinged edge of the door panel by rotation of a latch drive hub in each of a clockwise direction and a counterclockwise direction relative to a first side of the door panel. The multipoint lock also includes at least one auxiliary latch and a deadbolt drive hub. Rotation of the deadbolt drive hub substantially simultaneously actuates the main latch and the at least one auxiliary latch.

A deadbolt latch assembly is provided which includes a housing, bolt, slide, and a pivot member. The bolt is movable, at least partially, into and out of the housing. The slide is located inside the housing and coupled to the bolt to move the bolt, at least partially, into and out of the housing. The slide also includes a plurality of slots. The pivot member includes a plurality of cam members extending therefrom. Each cam member is configured to engage one of the plurality of slots on the slide.

Disclosed herein is a mechanism (10) for transmitting a torque applied to a handle (12). The mechanism (10) comprises a torque transmitter (18). The torque transmitter (18) is for transmitting the torque applied to the handle (12) coupled thereto. The mechanism (10) comprises a torque transmitter stop (40) within the housing (14). The torque transmitter (18) and the torque transmitter stop (40) are cooperatively arranged for the torque transmitter stop (40) and the torque transmitter (18) to engage to arrest a torque transmitter rotation. The torque transmitter (18) and the torque transmitter stop (40) are cooperatively arranged for the torque transmitter stop (40) and the torque transmitter (18) to disengage when the torque so applied exceeds a predetermined torque value. Also disclosed herein is a method for operating the mechanism (10) for transmitting a torque applied to the handle (12).

A multipoint lock is described. The multipoint lock includes a main latch. The main latch has a latched position where the main latch is configured to extend a first distance from an unhinged edge of a door panel. The main latch is configured to be retractable toward the unhinged edge of the door panel by rotation of a latch drive hub in each of a clockwise direction and a counterclockwise direction relative to a first side of the door panel. The multipoint lock also includes at least one auxiliary latch and a deadbolt drive hub. Rotation of the deadbolt drive hub substantially simultaneously actuates the main latch and the at least one auxiliary latch.

An adapter for either a handle set or a lever set door lever is equipped with a pair of springs to provide a pre-load on the spindle. The pre-load prevents sagging of the lever due to the large mass of the lever. A sleeve in the adapter is formed out of a compressible material that accepts the spindle in a press-fit configuration. This allows for greater manufacturing tolerances while still providing a solid and secure engagement between the spindle and the adapter. As a result, any free play in the lever is eliminated and the lever is maintained in a horizontal, home position when the lever is not in use. Following use through rotation of the lever, the springs promptly return the lever back to the home position while the sleeve prevents any slop or free-play in the lever's motion.

The present invention relates to a technical field of building doors and windows drivers, and more particularly to a built-in lift sliding door lock, which includes a lock point linkage mechanism and a lock seat, wherein the lock seat is a flat structure adapted for being embedded into an extrudate, and has an import slot and a locking slot communicated with the import slot; the lock point linkage mechanism includes a lock point, a sliding plate, a fixed plate, a first plectrum, a second plectrum, a connecting piece and a cam. Beneficial effects of the present invention are as follows. Displacement changes of the lock point are converted into rotation changes of the cam for damping conversion, which is flexible and convenient, and enhances feel comfort. The present invention has ingenious structure, moderate structural complexity, low failure rate through the component connection method and long service life.

A multipoint lock is described. The multipoint lock includes a main latch. The main latch has a latched position where the main latch is configured to extend a first distance from an unhinged edge of a door panel. The main latch is configured to be retractable toward the unhinged edge of the door panel by rotation of a latch drive hub in each of a clockwise direction and a counterclockwise direction relative to a first side of the door panel. The multipoint lock also includes at least one auxiliary latch and a deadbolt drive hub. Rotation of the deadbolt drive hub substantially simultaneously actuates the main latch and the at least one auxiliary latch.

Disclosed are apparatus and corresponding methodology for the attachment of a self-contained module to any mechanical lock having a mating feature to accept it (in either of an OEM application or as a retrofit). The module enables a separate (preexisting) cam locking feature (components) to be associated with an existing mechanical lock by being fitted onto the back of the existing lock and then having the cam locking components attached to the module. In turn, the preexisting cam locking components may be fitted to the module aligned in any one of four positions (up, down, left, and right) on the back of the module for latching in any position in which the associated lock/cam strike may be installed. The cam locking components then function to allow a user to open an associated door or drawer, and when finished, slam it shut without having to rotate the lock back to a locked position. The self-contained module allows the cam locking components to be fitted to a standard, mechanical lock and still have the self-lock feature that is otherwise not available within the existing lock.

A silent door lock comprises a panel (1), a lining board assembly (2), a box base component (3), a handling pick (4), a buffer handle (5) and a buffer drive (6); the buffer handle (5) includes a handle (51), a volute spiral spring (52), a toggling plate (53) and a damper (54); the handle (51) is inserted into the volute spiral spring (52), the toggling plate (53) and the damper (54) in turn through a handle mounting hole (11) on the panel (1); the buffer drive (6) includes a drive (61), a drive return spring (62), a silencing retainer sleeve (63), a drive guide vane (64) and a drive lever (65); the silencing retainer sleeve (63) consists of a front cover of the silencing retainer sleeve (631), two O rings (632) and a rear cover of the silencing retainer sleeve (633). A damping chamber (6312) is arranged at the center of the front cover of the silencing retainer sleeve (631), an appropriate amount of damping grease (63120) is injected into the damping chamber (6312), and the two O rings (632) block the damping grease (63120) in the damping chamber (6312).

A multipoint lock assembly for a swinging door panel includes a mortise housing that is installed in a mortise along the non-hinged edge of the door panel. A latch operating mechanism and a lock operating mechanism are disposed in the mortise housing. Each of these mechanisms is designed to be operated with a standard rotary operator such as a handle or knob for the latch operating mechanism and a key and/or thumb turn for the lock operating mechanism. The latch operating mechanism is transitionable between left- and right-hand orientations and includes a deadlatch feature that prevents forced back-drive. Turning the key and or thumb turn of the lock operating mechanism extends a deadbolt and extends upper and lower shoot bolts from edges of the door. When extended, the shoot bolts also are secured against forced back-drive by unique mechanism configurations.