Abstract: An espagnolette or espagnolette-lock for a door or the like, having a control mechanism including, on the one hand, a springy mechanism for automatically restoring a operating rod into locking position and, on the other hand, a locking device capable of maintaining this operating rod in its unlocked position upon opening of the leaf.The locking device consists of a lever fitted in the casing, about a spindle perpendicular to the plane of the latter, so as to be capable of tilting between an inactive position and an active position in which it co-operates with a stop directly or indirectly made integral with the operating rod, in order to impede the latter from moving under the action of the springy means, the lever being extended, beyond its axis of pivoting, by a control pawl on which are capable of acting an unlocking mechanism in the shape of an actuator directly or indirectly integral with a spring-bolt.

Abstract: A vehicle door latch device comprises a longitudinal open link having an upper end connected to an open lever and a lower end connected to a lock lever. The open link is displaced into a locked position when it moves toward an exterior side of a latch body and is not overlapped with a raised portion of the latch body. A self-canceling lever is attached to the latch body by a first shaft and has a first arm connected to an ratchet pin and a second arm extending toward the open link. The second arm restores the open link to an unlocked position by when a ratchet is rotated by a contact with a latch. The first shaft is located on an exterior side of the ratchet pin. The second arm is overlapped with the open link when the open link is in the locked position.

Abstract: A lock mechanism is provided which may actuate both a deadbolt and flush bolts in response to a single lock movement. The mechanism includes a dual element bolt throw and flush bolt actuator, which locks in place in the extended position if the end of the bolt is pressed inwardly. The throw includes a transfer mechanism which transposes the horizontal movement of the bolt to vertical movement at the flush bolts. The flush bolts also include a mechanism to limit retraction thereof if the extending ends of the flush bolt is exposed to inward directed force. The entire lock mechanism may be actuated by a standard cylindrical lockset having actuating jaws extending therefrom.

Abstract: A door lever assembly having a locked and an unlocked position includes a trim housing and a lever handle and cam rotatably connected to the trim housing. A rotatable shaft extends between the lever handle and the cam, with the shaft defining a connection groove therethrough to provide access to a shaft interior. The shaft interior is configured to a accept a pin for connecting the cam and the shaft. This pin can be resettably disconnected following controlled slippage of frictional contact surfaces in response to excessive force applied to rotate the cam.

Abstract: An inner handle assembly of a door lock includes a handle with an axle. A mounting cap has an axial hole for passage of the axle and a through-hole offset from the axial hole. A spindle driving plate has a central hole engaging fittingly a spindle of the door lock. A manually operable lock unit has a button member extending outwardly through the through-hole and mounted for movement in an axial direction between locking and unlocking positions, and an engagement member in connection with the button member. The engagement member engages the spindle driving plate for locking against rotation of the spindle driving plate when the lock unit is at the locking position. A rotary member is mounted on the axle within the mounting cap for rotating simultaneously the axle. The rotary member moves axially and outwardly the engagement member to disengage from the spindle driving plate when the axle is turned to rotate the rotary member.

Abstract: A vehicle door lock device comprises a first group lever consisting of three kinds of ratchet levers connected to a ratchet, and a second group lever consisting of two kinds of opening levers connected to an outer opening handle. First variation of the lock device having one-motion opening and self-canceling mechanisms can be realized by the first combination of a first ratchet lever and a first opening lever. Second variation of the lock device having one-motion opening mechanism but self-canceling mechanism can be realized by the second combination of a third ratchet lever and the first opening lever. Third variation of the lock device having self-canceling mechanism but one-motion opening mechanism can be realized by the third combination of a second ratchet lever and a second opening lever.

Abstract: A door lever assembly having a locked and an unlocked position includes a trim housing and a lever handle and cam rotatably connected to the trim housing. A rotatable shaft extends between the lever handle and the cam, with the shaft defining a connection groove therethrough to provide access to a shaft interior. The shaft interior is configured to accept a pin for connecting the cam and the shaft. This pin can be wedgably disconnected following controlled slippage of frictional wedge surfaces in response to excessive force applied to rotate the cam.

Abstract: A door lever assembly for disengaging an unlocked latch of a lockable door latch assembly includes a lever handle rotatably connected to a trim housing and a cam operably connected to the lever handle. The cam is positioned to rotate in response to rotation of the lever handle, converting its rotational movement to linear movement of a movable slider positioned adjacent to the cam. An electrically activated block arm is positionable to prevent movement of the movable slider, effectively locking the door lever assembly.

Abstract: A door latching and seal assembly wherein a movable seal provides a combined latching and seal function with a detent action as the door engages and disengages a movable seal. In a preferred manner, the assembly has an extending lip for engagement with the door and the detent action is provided by lobe portions extending into cutouts in a mounting member. The latching and seal assembly is particularly suited for use with a curved shower door.

Abstract: An apparatus for mechanically locking and unlocking a passenger access door panel on a railway vehicle which includes a locking lever arm, one end of which is pivotally secured to a movable door panel and having a roller secured at the opposite end, and having a biasing means to pivotally bias the roller against a locking support structure secured to a structure adjacent to the movable door panel when such door panel is moving into the closed position.

Abstract: A door lock device with a latch that is supported by a latch pin engages a striker. A pawl, which meshes with the latch is also supported on the latch pin. A lift lever which mates with the pawl pin moves together with the pawl on the same axis; an outer lever with a release bushing which mates with the lift lever is supported by the pawl pin. A locking link with a curved groove, which is concentric with the pawl pin, guides the release bushing.

Abstract: A plastic door lock comprises opposed flat inner and outer cover plates (1,1') each recessed to house slidable drag units (3,3'), and a core unit (2) located between the cover plates (1,1') housing a latch unit (4) which, on sliding movement of the drag units (3,3'), can be moved between a closed position and an open position. A limit switch (25) housed in the inner cover plate (1') can be pivoted between an unlocked position permitting movement of both the inner and outer drag units (3,3') to actuate the latch unit (4), and a locked position preventing movement of the outer drag unit (3) but being such that, on movement of the inner drag unit (3'), the limit switch (25) is returned to its unlocked position to enable actuation of the latch unit (4) from inside the door. The components of the lock are moulded from a plastics material.

Abstract: A vehicular door lock device comprises a body having on its front side a guide groove for receiving a striker and on its rear side a raised portion for defining the guide groove, a latch, a ratchet engaged with the latch, outer and inner levers connected to outer and inner handles of the door respectively, a locking lever connected to a key, an outer link placed between the locking lever and the open lever and changed to an unlocked position and a locked position when the locking lever rotates, an inner link conencted to the inner lever so as to release the ratchet from the latch when the inner lever rotates irrespective of a locked condition. The outer link and the locking lever are connected through an intermediate link. A back plate is fixed to the rear side of the body.

Abstract: A motor vehicle door lock with lock latch (30) and detent pawl (31) with a lock mechanism with a base plate (2), an inner release lever (3), an outer release lever (4), an inner safety lever (7), an outer safety lever (8) coupled with inner safety lever (7), and a central lock lever (9) acting on outer safety lever (8) and able to be connected to a central lock drive. The outer safety lever (8) which is stopped in a released position when the lock latch (30) and detent pawl (31) are open, is mechanically optimized, while taking into consideration the requirements of a multistep locking by a central lock by making the stopping of the outer safety lever (8) disengageable, when lock latch (30) and detent pawl (31) are open, by movement of the central lock lever (9) toward a safety position, so that outer safety lever (8) can then be brought with central lock lever (9) into the safety position.

Abstract: A latch bolt operating device incorporating lever handles and rotary plates cooperatively rotatable with the lever handles to control the angle of the rotation of the handles. The device is provided with a simplified privacy lock mechanism to prevent the opening of a door at one side thereof. The lock mechanism is directly mounted to the assembly of the lever handles, thereby eliminating the need of an additional housing to hold the mechanism. One of the rotary plates is provided with a cam face to actuate a lock shaft of the lock mechanism. The lock shaft is telescopic so that the device accommodates door panels of different thickness.

Abstract: The operating member of an uncoupling type vehicle door latch has a blocking portion which blocks movement of the coupling means to uncoupled position when the door latch is in unlatched position unless the operating member is first moved to an operated position. This requires the performance of multiple conscious actions by the driver in order to obtain keyless locking. The coupling means can be returned to coupled position by the locking means without operation of the operating member.

Abstract: The vehicular door locking device according to the present invention with a ratchet fastened pivotably to a locking device body via a first shaft, adapted to prevent the reverse turning of a latch and having a first projection; an opening lever mounted pivotably on the first shaft, connected to a door handle and having an elongated bore extending radially with respect to the first shaft; an L-shaped locking lever mounted fixedly on an output shaft of an actuator, adapted to be turned between a locking position and an unlocking position, and having a first arm to which one end portion of a rod extending to a sill knob on a door is connected, and a second arm; and an interlocking member connected pivotably to the second arm via a second shaft and having a second projection engaged with the elongated bore. When the locking lever is in the unlocking position, the first and second shafts are aligned with each other, and the first and second projections are positioned in a mutually opposed state.

Abstract: In an automotive door locking apparatus according to this invention in which the lock lever is switched between the locked position and the unlocked position by a motor-operated actuator, when with the lock lever in the locked position the inner lever is manually operated, the rotating member is activated to disengage the ratchet from the latch while at the same time the lock lever and the actuator are returned to the unlocked position.

Abstract: A door latch includes an elongated stationary case and a latch bolt mounted to reciprocate longtudinally in the case between outwardly extended and inwardly retracted positions. The latch bolt is driven between the two positions by a driver mechanically connected to the latch bolt and longitudinally movable within the case under control of first and second cams. The rotation of either cam will cause the driver to move against the force of a helical spring in direction to pull the latch bolt to an inwardly retracted position. A pushbutton key is mounted to a sidewall of the case and movable in direction into and out of the case to lock one of the cams against rotation. A pin, integral with and extending radially from said key, is received by a camming means on the other cam whereby rotation of the other cam will move the pin in direction to retract the key from the first mentioned cam. A detent in the case is held in position by the helical spring to frictionally engage the outer surface of the key.

Abstract: A novel rack-pinion forms an outside operator of either a single latchbolt or a double latchbolt with the pinion rotating a latch operator of at least a single latchbolt to move the bolt between extended and retracted positions. The rack is shiftable between pinion engaging and nonengaging positions as determined by an inside operator control button, this being the sole means of shifting in the simplist, single latchbolt form. When it is a single latchbolt form, a lock may be added to the outside operator for also shifting the rack-pinion construction. In more complex, double latchbolt form, the second bolt, preferably a deadbolt, may have an outside operator formed by a lock or an inside operator formed by a turnpiece of both. With the outside lock of the second bolt construction, a yoke may connect that to the rack-pinion construction of the first latchbolt for shifting the rack by the second latchbolt outside lock.

Abstract: A door latch includes an elongated stationary case and a latch bolt mounted to reciprocate longitudinally in the case between outwardly extended and inwardly retracted positions. The latch bolt is driven between the two positions by a driver mechanically connected to the latch bolt and longitudinally movable within the case under control of first and second cams. The rotation of either cam will cause the driver to move in direction to pull the latch bolt to in inwardly retracted position. A pushbutton key is mounted to a sidewall of the case and movable in direction into and out of the case to lock one of the cams against rotation. The key is mounted to a pin which is received by a camming means on the other cam whereby rotation of the other cam will move the pin in direction to retract the key from the first mentioned cam. A spindle for rotating the cams is comprised of first and second segments in end butting relation and rotatable with respect to each other.

Abstract: A locking arrangement for a motor vehicle door in which a lock housing with a rotary catch acting on a locking bolt on the side of the body, a spring-loaded locking latch, a knee lever arrangement engaging at the rotary catch and at the housing which is formed by two lever members connected in a dead-center joint, and an actuating mechanism is provided, whereby two end positions of the dead-center joint which are coordinated to the locking, respectively, the open position of the rotary catch, are determined by control abutments, and whereby a torque is to be introduced into the rotary catch by means of the actuating mechanism by way of the knee lever, by means of which the door is adapted to be transferred into the locked position against the force of an elastically deformed door seal. This lock arrangement is characterized in that the closing force is to be introduced manually into the actuating mechanism by a door handle at which a return device is effective.

Abstract: A vehicle body closure latch which is formed of a single handed latch unit, a single handed actuating unit, and a single handed bumper unit which can be assembled in either a right hand or a left hand configuration.

Abstract: A security lock comprising a latch positioned at the edge of a door which is actuated to selectively lock or unlock the door. The security lock includes an optional key-actuated dead bolt which can provide additional security when needed. A mechanism for locking or unlocking the latch comprises a hand-actuated knob positioned on the inside of the door so that when the dead bolt is not in use, the latch mechanism may still be locked or unlocked simply by rotating the knob between two positions. The mechanism for locking the latch is disengaged when the latch is in the locked position. If the latch is in the locked position when the door is opened, when the door is closed the latch is automatically unlocked to prevent a person from accidentally being locked out.

Abstract: When an open lever assumes a position causing a latching member to release a striker, an arm portion of the open lever intersects a travelling path of a key cylinder-actuated lever which is synchronously pivotal with a locking knob-actuated lever. Thus, when the door is opened, the locking knob can not be shifted to its locking position thereby suppressing a so-called "keyless locking".

Abstract: A door lock arrangement for a vehicle in which there is no pillar against which the trailing edge of a forwardly hinged door may engage, includes locks provided at the top and bottom corners of the door and a centrally located mechanism for simultaneously operating said locks. This mechanism includes means for producing both of the so called "keyless locking" and "self cancellation" functions.

Abstract: An exit device including a latch bolt and an action lever. The action lever includes a cam lever pivotably connected thereto and having a first portion engaging a locking member and a second portion engaging the latch bolt the cause the retraction thereof as the action lever is pivoted into its open position when a locking member is in an unlocked position. When the locking member is in the locked position, the first portion of the cam lever is free of engagement of the locking member and a second portion is free to cam about the latch bolt upon pivoting of the action lever into its open position whereby the latch bolt is not retracted.

Abstract: A door lock for sliding doors of trucks, vans and the like includes an exterior handle assembly and an interior handle assembly for actuating components carried in an interior housing assembly. The components include a pair of rotary latch bolts projecting through openings formed in opposite sides of the housing assembly. A pair of strikes are carried on spaced portions of a vehicle wall at locations on opposite sides of a vehicle access opening which is controlled by the door. The door is movable between a latched-closed position wherein one of the latch bolts latchingly engages one of the strikes to hold the door closed, and a latched-open position wherein the other of the latch bolts latchingly engages the other of the strikes to hold the door open. A thumb-operated lock control slide is carried by the housing assembly and provides one means for locking and unlocking the lock from inside the vehicle.

Abstract: A hotel-function mortise lock with improved deadlocking and deadlocking release cam mechanism, comprising a release cam block slidably mounted on the latch bolt tailpiece against the rear tailplate by which it is retracted. A latch deadlocking lever pivotally mounted in the lock case has a forward blocker arm movable into deadlocking position behind the latch and has a rearward release arm which carries a cam nose in the path of initial movement of a cam finger on the slidable cam block, so that latch-retracting movement of the cam block initially moves the deadlocking lever to non-blocking position. The lock includes both a key cylinder-actuated lever and a knob hub-actuated lever, both of which are engaged with the cam block so as to act therethrough in retracting the latch and thereby cause the same single cam finger to release the deadlocking lever to permit full retraction of the latch by either of such latch-retracting levers.

Abstract: A deadlock or latch comprising a body and a bolt member pivotally mounted on a first hub, pivotally mounted on the body remote from the pivoting axis of said first hub, said bolt member being resiliently biased so as to maintain its fully open and fully closing positions in abutment with stop means, and a second hub having a cam surface abutting one end of a slide member resiliently biased into abutment with said cam surface and arranged for sliding movement into and out of a locking position engaging a stop member on the first hub when the bolt member is in its fully closing position so as to prevent rotation of the first hub for movement of the bolt member out of its fully closing position.

Abstract: A closure latch includes a ring member connecting the lock operating lever and slidably engaged over an angularly inclined portion of the rod connecting the inside remote handle and the latch operating lever. Initiation of actuation of the inside remote handle shifts the rod and causes the ring to be translated to move the locking lever from its locked position to its unlocked position. Continued actuating movement of the inside remote handle unlatches the door. Thus, the closure latch is unlocked and unlatched by a single actuation of the inside handle rather than by the sequential and separate lifting of a lock button followed by actuation of the inside handle.

Abstract: A keyless door locking mechanism for an automotive vehicle comprises a latch member engageable with a striker element on the vehicle body during closing of the door, a detent element engageable with the latch member for keeping the same latched when engaged by the striker, a release element having a shoulder being connectable with the detent for releasing engagement of the latch member and the detent in an unlocked position thereof, a locking lever for moving the release element to a locked position to free the connection of the detent and the release element, a keyless locking lever being moveable with the locking lever between the unlocked and locked positions thereof and being further moveable to a keyless locked position, a cancelling lever moveable with the locking lever between the unlocked and locked positions thereof and further moveable to the keyless locked position and being engageable with the detent to return the locking lever moved to its locked position during door opening to its unlocked posit

Abstract: A locking apparatus provided with an idle mechanism for preventing an erroneous unlocking operation inside the vehicle or a possible car theft. The apparatus is comprising a pivotally mounted latch member engageable with a striker, a locking plate pivotally mounted on a common pivot to receive the latch member, and a releasing lever which is also pivotally mounted on the common pivot and may be shifted from an unlatching position to a free position, whenever necessary, so as to cause the releasing lever not to work upon the locking plate any longer and to retain the completely latched-condition.