An exemplary knob assembly includes a knob having a circumferential channel, and a deformable ring seated in the circumferential channel. The ring is normally rotatable relative to the knob such that rotation of the ring does not cause a corresponding rotation of the knob. When gripped with a sufficient gripping force, the ring frictionally engages and rotationally couples with the knob, thereby permitting transmission of torque between the ring and the knob. In certain embodiments, the knob assembly may include a detent mechanism operable to selectively couple the ring and the knob. In certain embodiments, the ring may include protrusions operable to engage pockets in the knob to provide for rotational coupling.

An exemplary product line system includes a common platform and a plurality of component families, each of which includes a plurality of interchangeable component species configured for use with the common platform. The common platform includes an inside drive assembly and a chassis assembly including a chassis and an outside drive assembly. A lockset assembled from the system includes the common platform and a plurality of modular components. Each of the modular components corresponds to a respective one of the component families, and is provided as a selected species of the corresponding component family. The lockset has a function defined by the set of component species installed to the lockset. The function of the lockset can be changed by altering the set of component species installed to the lockset without disassembling the chassis assembly.

A latch mechanism includes a hook, a displaceable handle, and links connected between the handle and hook for the operation of the latch mechanism. The handle and links cooperate with the hook to hold the latch mechanism in a locked position.

A latch mechanism includes a hook, a displaceable handle, and links connected between the handle and hook for the operation of the latch mechanism. The handle and links cooperate with the hook to hold the latch mechanism in a locked position.

A handle assembly for a window or door leaf having first and second opposing sides, the handle assembly having a forward end and a rearward end, the handle assembly comprising: a first handle grip, configured for mounting to a first side of the leaf, the first handle grip being moveable rotatably and axially relative to a first handle axis, and a second handle grip configured for mounting to the second side of the leaf, the second handle grip being movable at least rotatably relative to a second handle axis, each handle grip having a closed position, wherein the handle grip is in a first angular position and an open position, wherein the handle grip is in a second angular position, the handle assembly having a rest mode and a locked mode.

A clutch engagement assembly for a door lock device includes a first shaft having at an end thereof an insertion end portion in which a channel is formed; a second drive shaft having a hollow engagement end portion into which the insertion end portion of the first shaft is inserted; a driving member which provides a driving force; and a pin member that is installed in a state of being elastically supported in the engagement end portion of the second shaft and is movable by the driving member so as to extending through (be inserted in) at least a part of the first shaft and at least a part of the second shaft, thereby causing a clutch engagement or a disengagement between a first shaft and a second shaft. The clutch engagement assembly may provide a relatively small size structure of the door lock device and a firm engagement force.

Provided is a lock device for an opening/closing body, the device enabling a base member to be mounted from the front side of a mounting hole, and making it difficult for the base member to become loose. The lock device 10 comprises a lock part, a lock member which is operated via a manipulation member 40 in order to attach to/detach from the lock part, a mounting hole 6, and a base member 20 which is mounted by being inserted from the rear side of the mounting hole 6 and has a rotation support part 29 that rotatably supports the manipulation member 40, wherein: the manipulation member 40 comprises a base end part 41 and a grip part 42; a hook 26 is provided on one end side of the base member 20, the hook 26 engaging with the rear-side peripheral edge at the side at one end 6a of the mounting hole 6; and the base member 20 is provided with elastically deformable elastic engaging claws 30 which engage with the rear-side peripheral edge of the mounting hole 6 and are provided on the base member 20 further to the other end side, that is at the other side to the one end side, than the rotation support part 29.

A combination lock is provided, the lock having a latch movably mounted to a housing of the lock for movement between a locked position and an unlocked position; and a bolt movably mounted to the housing of the lock for movement between a first position and a second position, wherein the combination lock is a key-controlled combination changing permutation lock wherein a button disposed away from a rear exterior surface of the housing in a first direction rearwardly away from the rear exterior surface is depressed in order to change the combination of the combination lock and the housing has a button protection feature extending rearwardly away from the rear exterior surface of the housing in the first direction proximate to the button and the button protection feature extends farther away from the rear exterior surface of the housing in the first direction than the button.

A combination lock is provided, the lock having a latch movably mounted to a housing of the lock for movement between a locked position and an unlocked position; and a bolt movably mounted to the housing of the lock for movement between a first position and a second position, wherein the combination lock is a key-controlled combination changing permutation lock wherein a button disposed away from a rear exterior surface of the housing in a first direction rearwardly away from the rear exterior surface is depressed in order to change the combination of the combination lock and the housing has a button protection feature extending rearwardly away from the rear exterior surface of the housing in the first direction proximate to the button and the button protection feature extends farther away from the rear exterior surface of the housing in the first direction than the button.

A combination lock is provided, the lock having a latch movably mounted to a housing of the lock for movement between a locked position and an unlocked position; and a bolt movably mounted to the housing of the lock for movement between a first position and a second position, wherein the combination lock is a key-controlled combination changing permutation lock wherein a button disposed away from a rear exterior surface of the housing in a first direction rearwardly away from the rear exterior surface is depressed in order to change the combination of the combination lock and the housing has a button protection feature extending rearwardly away from the rear exterior surface of the housing in the first direction proximate to the button and the button protection feature extends farther away from the rear exterior surface of the housing in the first direction than the button.