Abstract: 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.

Abstract: In a rotation input device, a planetary carrier, connected to an operation knob, rotatably supports a planetary gear which meshes with an outer teeth row provided for a sun gear, to which an output shaft is secured, and also meshes with an inner teeth row provided for an outer gear. A plunger provided for the sun gear is in elastic contact with a recess cam provided for the outer gear. A solenoid unit prevents rotation of the outer gear in accordance with an output of a magnetic sensor which faces a magnet provided for the output shaft.

Abstract: The mechanism comprises a bar (8) slidably mounted in a channel (18) which can be obstructed by a sliding member (11) of an electromechanical latching unit in accordance with a preset time-schedule.The device described enables the time ban to be lifted by means of two pivotal elements (43, 52) that are normally not coupled to one another, one of them being positionable in the path of travel of the bar (8) of the mechanism so as to be actuated thereby when the mechanism is moved in an opening direction. The two pivotal elements are associated with transmission means (50, 57) which are actuated when a breakdown is detected in order to lock the two pivotal elements together. The electromechanical latching unit can then be made inoperative manually by actuating the mechanism of the locking system in an opening direction.

Abstract: A time lock usable with a lock mechanism having a bolt displaceable along a path for opening a door has a housing which is fixed adjacent the path and in which a keeper is vertically displaceable between an uppermost blocking position, a lowermost unblocking position, and an intermediate position. A clockwork in the housing displaces a lock slide horizontally from a holding position wherein a recess in this lock slide is out of alignment with a dog pivoted in the housing into a freeing position with the recess and dog aligned after elapse of a predetermined interval of time. This locking dog is carried on a locking pawl which is connected via a shortenable link to the vertically displaceable keeper. When the clockwork displaces the lock slide into the freeing position the keeper automatically drops into the intermediate position, with the dog entering upwardly into the recess in the lock slide.