An improved locking device comprising a lock body, a locking plug, and a plurality of tumblers, wherein the tumblers are restricted from moving with respect to the locking plug during the time frame that the locking plug is rotated with respect to the lock body.

A key cylinder device includes a key cylinder attached inside a cylinder portion of a cylindrical mounting member and locked/unlocked by a mechanical key, and a packing insertion portion that is integrally formed on an outer surface of the key cylinder so as to have a shape without an undercut portion and includes an opening for insertion of a packing member in a vertical direction along the outer surface.

The present disclosure provides for a lock cylinder having a rotatable spindle with at least one disc and at least one wafer housing rotatingly engaged therewith. A slidable wafer is carried on the wafer housing. A locking bar is operable to prevent rotation of the lock cylinder in a locked position and permit rotation of the lock cylinder in an unlocked position.

An improved locking device comprising a lock body, a locking plug, and a plurality of tumblers, wherein the tumblers are restricted from moving with respect to the locking plug during the time frame that the locking plug is rotated with respect to the lock body.

Provided are a lock cylinder and an unlocking key. The lock cylinder includes: a lock housing; a lock core, herein the lock core is rotatably arranged in the lock housing; a locking member, herein the locking member is movably arranged between the lock core and the lock housing and provided with a locking position and an unlocking position; a locking blade, herein the locking blade is movably connected to the lock core and capable of stopping or avoiding the movement of the locking member so as to lock or unlock the locking member; a driving assembly, herein at least part of the driving assembly is movably arranged relative to the locking member, and the driving assembly is capable of stopping or avoiding the movement of the locking member so as to lock or unlock the locking member.

The present disclosure provides for a lock cylinder having a rotatable spindle with at least one disc and at least one wafer housing rotatingly engaged therewith. A slidable wafer is carried on the wafer housing. A locking bar is operable to prevent rotation of the lock cylinder in a locked position and permit rotation of the lock cylinder in an unlocked position.

A padlock including a shackle having a short leg and a long leg, a lock body having a first hole configured to receive the short leg of the shackle, and a second hole configured to receive the long leg of the shackle, where the long leg is configured to at least partially remain within the lock body, a latch movable between a first position engaged with the short leg of the shackle and a second position disengaged from the short leg of the shackle, a cylinder configured for rotational movement within the lock body and operatively engaged with the latch, a sleeve configured to control rotational movement of the cylinder, and wherein when the latch is in the first position the padlock is in a locked mode, and when the latch is in the second position the padlock is in an unlocked mode.

A trapped key interlock system is disclosed. A pair of hollow tubular casings located one inside the other and each having a series of elongate slots are used. When the lock is in a locked condition the elongate slots are aligned as inner and outer pairs with engaging members extending through the pairs of slots is preventing rotational movement of the tubular casings relative to each other. The engaging members are biased towards this locked condition. On insertion of the correctly coded key the engaging members are caused to move against the biasing force out of engagement with the slots in the outer tubular casing thereby allowing the inner tubular casing to rotate relative to the outer tubular casing and moving the lock to an unlocked condition.

A lock cylinder, for a cylinder lock, having a cylinder housing with a core receiving cut-out and axially extending blocking grooves open to the core receiving cut-out. The lock cylinder having a cylinder core supported inside the core receiving cut-out and having a plurality of guide slots extending through the core. Plate tumblers supported in the guide slots such that they can be displaced back and forth in the plate sliding direction between a locking position, in which the cylinder core is connected to the cylinder housing in a non-rotating manner about a cylinder axis, and a non-locking position, in which they are driven into the cylinder core and the cylinder core can rotate about the cylinder axis. Wherein two plate tumblers are connected to a single spring so as to be driven in opposite directions into their respective locking positions.

A padlock including a shackle having a short leg and a long leg, a lock body having a first hole configured to receive the short leg of the shackle, and a second hole configured to receive the long leg of the shackle, where the long leg is configured to at least partially remain within the lock body, a latch movable between a first position engaged with the short leg of the shackle and a second position disengaged from the short leg of the shackle, a cylinder configured for rotational movement within the lock body and operatively engaged with the latch, a sleeve configured to control rotational movement of the cylinder, and wherein when the latch is in the first position the padlock is in a locked mode, and when the latch is in the second position the padlock is in an unlocked mode.