Apparatus and associated methods relate to a selectively operated safety latch having an active mode and a stowed mode. In an illustrative example, a retractable safety latch may include a tongue element extending in a first plane and a base element extending in a second plane. The tongue element, for example, may include multiple mode selection slots. The base element may include a brace slot. For example, one of the multiple mode selection slots and the brace slot may receive a security pin long a longitudinal axis so that a predetermined mode is selected. In the active mode, the tongue element extends away from the base element to releasably engage a striker element. In the inactive mode, the first plane and the second plane are substantially parallel such that the tongue element is prevented from engaging the striker element. Various embodiments may advantageously provide quick switching security latch operations.

A hinged door with a latch described. The latch may be used to secure the door of a cabinet in a closed position. The door hingedly connects to the cabinet by a hinge. The latch includes a handle. The handle includes a pawl tip. The latch includes a base, and the handle rotates relative to the base. The handle is biased to a closed position by a spring or biasing member. The handle and the base are mounted to the door of the cabinet. A striker is mounted to a wall the cabinet. The striker includes a catch that is spaced from an interior side of a wall of the cabinet. The pawl tip of the handle lockingly engages with the catch of the striker to secure the door.

A fireplace latch system has a pivotable latch retained within a latch retainer. One or more springs between the pivotable latch and latch retainer bias the latch towards two stable positions, an opened position and a closed position. In the closed position, one or more surface contacting elements extend through the latch retainer and exert a force on a frame for a glass panel to secure the glass panel and frame to the fireplace. The latch system allows the glass panel and frame to move outwards to release pressure in the event of an explosion within the combustion chamber of the fireplace.

A latch for a cabinet is described. The latch may be used to secure a door of the cabinet in a closed position. The latch includes a pawl member that pivots or rotates relative to a pivot plate. The pawl member includes a pawl tip generally opposite of a pawl fulcrum end. The latch includes a striker. The pawl member engages and disengages with the striker. The latch includes a handle that is configured to move. The handle includes an upper end. The upper end is configured to contact the pawl lever end to cause the pawl member to pivot or rotate relative to the pivot plate to disengage the pawl member from the striker.

A hook device for opening and closing a console box with a console lid includes a hook body, a hinge shaft formed in the hook body and adapted to engage a lower front of the console lid, a knob protruding from the hook body in one direction at a center front where the hinge shaft is formed at the upper part, and a latch protrusion formed at a lower part of the hook body and protruding in a direction opposite to the one direction in which the latch protrusion is arranged to engage with and release from a latch formed at a front end of an upper surface of the console body. The hinge shaft protrudes to left and right sides at an upper part of the hook body.

A cabinet lock includes a cabinet-door latch and a cabinet-door catch. The cabinet-door latch is configured to be fixed to a cabinet panel for movement with the cabinet panel between a closed position blocking access to a cabinet opening and an opened position exposing the cabinet opening. The cabinet-door catch is configured to engage selectively with the cabinet-door latch to block the cabinet panel from moving from the closed position to the opened position.

A lock mechanism according to an embodiment includes an engaging portion, a hook, and a pressing portion. The engaging portion is provided in any one of a housing and a door that is configured to open and close a housing opening portion of the housing. The hook is provided in the other one of the housing and the door to be rotatable around a rotation axis, is engageable with the engaging portion, and is normally disengaged from the engaging portion by its own weight. The pressing portion is provided separately from the hook and is configured to press the hook. The hook includes a hook side engaging portion that is configured to engage with the engaging portion with the rotation axis interposed therebetween, and a hook side pressing portion that is configured to cause the engaging portion to engage with the hook side engaging portion by being pressed by the pressing portion.

A cover member includes: a fittable recess that opens to one side of the cover member in a direction orthogonal to an axis of a shaft member, receives a torsion coil spring from the one side, and fits on an outer periphery of the torsion coil spring; and an anchoring counter element to which one end of the torsion coil spring is anchored. The torsion coil spring is engaged with a hook member while being fitted in the fittable recess, thus biasing the hook member toward movement about the axis of the shaft member to a locking position and supporting both ends of the shaft member rotatably around an internal surface of the coil to function as a bearing member.

An assembly is provided for an aircraft. This assembly includes a keeper, a latch, a lock and an electric sensor. The latch includes a handle and a hook structure operatively coupled to the handle. The hook structure is engaged with the keeper when the handle is in a closed position. The hook structure is disengaged from the keeper when the handle is in an open position. The lock includes a lock element configured to move between a locked position and an unlocked position. The lock is configured to lock the handle in the closed position when the lock element is in the locked position. The lock is configured to unlock the handle from the closed position when the lock element is in the unlocked position. The electronic sensor is configured to provide a signal when the lock element is in one of the locked position or the unlocked position.

A thermal printer includes a housing, a head cover, and a locking mechanism, wherein the locking mechanism includes a lever member and a lock member which are configured so that i) as an operation part is pressed down, the lock member rotates in a direction to move a claw away from the lock pin, and a lock is released by the claw being disengaged from the lock pin and ii) as the operation part of the lever member is pulled up, a portion of the lever member presses the lock member, whereby the lock member rotates in a direction to move the claw away from the lock pin, and the lock is released by the claw being disengaged from the lock pin.