Abstract: A vehicle-door opening and closing device includes: a latch unit configured to keep a vehicle door in a half latched state or a fully latched state; a power close mechanism configured to displace the vehicle door from the half latched state to the fully latched state; a power release mechanism configured to release the fully latched state to bring the vehicle door to an openable state; and a drive gear configured to be driven by a motor. The power release mechanism is configured to be actuated with a drive force of the drive gear. A return switch configured to be switched upon driving in a predetermined drive range sufficient to complete actuation of the power release mechanism is placed near the drive gear. The motor is configured to return the drive gear based on a signal from the return switch.

Abstract: A door handle assembly configured for installation in a motor vehicle door may include a housing accommodating an actuator mechanism, a grip assembly activating the actuator mechanism, wherein the actuator mechanism includes a plurality of levers juxtaposed to each other and pivotably positioned in the housing, and the plurality of levers having a first lever and a second lever, wherein the first lever and the second lever may be positioned to be in contact with a grip lever during a normal working condition and during a side impact condition of the vehicle, thereby exerting a holding force on the grip lever, and wherein after experiencing the side impact, the first lever may be configured to rotate about a pivot and the second lever continues exerting the holding force on the grip lever.

Abstract: A sliding door latching and locking system is disclosed which includes a latch assembly, a lift rod assembly, and a retainer assembly, among other things. In some embodiments, the latch assembly includes a support member mounted in a movable body and a latching arm pivotally mounted to the support member having a distal end thereof extending outside of the periphery of the movable body, wherein the distal end includes an engagement facilitating portion with a sloped outer surface for contacting an interlocking member.

Abstract: This disclosure relates to a novel concept regarding the specific latching mechanism to provide a secure and easily releasable device. The latching mechanism is used to attach an accessory such as a luggage rack or the sissy bar to a motorcycle or equivalent.

Abstract: An electric lock for remote access control to a container wherein a U-shaped latch is mounted on a door in alignment with a slot in a housing mounted in the container. Upon closure, the latch enters the housing to engage a slotted keeper therein and causes rotation of the keeper. Rotation of the keeper causes a release lever to engage a stepped protrusion on the keeper and secures the keeper and latch. Activation of a solenoid or drive motor coupled to the release lever permits withdrawal of the latch from the housing. The axes of rotation of the keeper and release lever are located to greatly reduce the impact of pre-release forces to the door.

Abstract: A pawl assembly that can be installed to the output shaft of a latch mechanism more easily, and in some embodiments without the use of tools, as compared to prior art pawls.

Abstract: A latching device for at least two housing parts, in which a snap-on connection as well as a latching connection between the housing parts is produced by a correspondingly designed rotary knob/pushbutton function. The actuating button preferably is respectively arranged on two opposing sidewalls of an upper housing part, wherein the actuating button respectively acts upon a spring lever that is arranged on the inner wall of the upper housing part. During assembly of the upper housing part and a lower housing part, a forced snap-on connection between the two housing parts is produced and can only be disengaged again by exerting pressure upon the actuating buttons on both sides.

Abstract: An inertia blocking mechanism operably connected to a door handle on a vehicle having a handle chassis. A counterweight is operably connected to the handle chassis and is pivotally rotatable about a first pivot axis between a non-actuated position and an actuated position. Stanchions extends from the handle chassis. A spring-biased primary inertia lever is operably connected with the stanchions and is pivotally rotatable about a second pivot axis. The spring-biased primary inertia lever is biased to a first position out of rotational alignment with the counterweight. An auxiliary inertia lever is pivotally rotatable about the second pivot axis and is adapted to move the primary inertia lever into a second position in rotational alignment with the counterweight, which prevents the counterweight from rotating downward into the actuated position, thereby actuating the exterior door handle thereby preventing the exterior handle from actuating and releasing the latch.

Abstract: A latch assembly includes a housing having a cavity between first and second end walls. The housing includes first and second journal members and first and second swing arm apertures at the second end wall. A swing arm member having a joining end is positioned within the cavity having first and second swing arms connected to the joining end having portions extending freely through the first and second swing arm apertures. A keeper/catch member is rotatably connected to the first and second journal members. Keeper/catch member rotation from an orientation rotated away from a longitudinal axis defined by a portion of the first and second swing arms extending through the swing arm apertures to an orientation approximately parallel with the longitudinal axis creates an over-center locking condition for the housing and a pushing force acting through the keeper/catch member to push a first component into contact with a second component.

Abstract: A retention mechanism for a hinge mechanism of a door. The retention mechanism comprises: (a) a first portion comprising a keeper and a biasing arrangement configured to bias the keeper toward a locking position, while allowing displacement of the keeper from the locking position to a disengaged position; and a second portion comprising a latch, the latch being configured to displace the keeper from its locking position to its disengaged position and comprising a seat for retaining the keeper therein in its locking position, so as to maintain a door in its open position when the keeper being retained in the seat. The retention mechanism, when operating in conjunction with a hinge mechanism of a door, comprises a clearance area in which, during pivoting of the door between its closed and open positions, there is no contact between the keeper and the latch.

Abstract: A sliding door latching and locking system is disclosed which includes a latch assembly, a lift rod assembly, and a retainer assembly, among other things. In some embodiments, the latch assembly includes a support member mounted in a movable body and a latching arm pivotally mounted to the support member having a distal end thereof extending outside of the periphery of the movable body, wherein the distal end includes an engagement facilitating portion with a sloped outer surface for contacting an interlocking member.

Abstract: A device for adjusting the position of a locking member for a porthole in an open position towards the outside about an opening formed in the wall of a room, the aforementioned device including: a protruding portion having a circular shape attached to the wall about the opening via at least one attachment member; a junction part including a first end connecting a hinging end of the aforementioned member to the protruding portion. According to the disclosed embodiments, the protruding portion includes at least two housings, the junction part includes a second end mobile in the aforementioned at least one housing, the movement of the second end in the housing resulting in the movement of the locking member in an open position about the aforementioned opening. The device according to claim 1 wherein the aforementioned protruding portion is a unitary part, the aforementioned housing consisting of a blind recess having a U shape and formed in the side wall of the protruding portion.

Abstract: A printer having an opening/closing cover for providing access to a roll paper compartment, a peeler mechanism for peeling printed labels from a web and for dispensing the peeled printed labels from the printer and an opening and closing mechanism 50 which locks and unlocks the cover and a peeler unit 10 of the peeler mechanism in response to the manual operation of a manual operating member such as a release button 17 with a single easy operation. When the release button 17 is depressed into a first operating position 17B, a lock lever 52 of the opening/closing mechanism 50 slides from a locked position 52A to a released position 52B to disengage the lock lever 52 thus unlocking the opening/closing cover 9. At the same time, the sliding lock lever 52 pushes engaging claws 74a, 73a that lock or unlocks the peeler unit 10.

Abstract: A pivot joint includes a first component (12) having a projecting boss form (16) and a second component (11) having an opening (25) for receiving the boss form (16). A headed fastener (32) and washer (27) engage with the boss form (16), which includes engagement elements (17) that dig into the washer (27) when the joint is assembled.

Abstract: A case latch assembly 10 comprises a catch plate 12, a latch slider 14, a latch body 16, latch actuation means 18, a latch dish 20, a latch dish front 22 and a latch guard 24. The latch slider 14 comprises a slider body 26, latch arm 28 and a latch hook 30. The latch hook 30 comprises a hook member 32 and a latch hook ramp 34. The latch body 16 is provided with a latch aperture 40 and a latch actuation ramp 42, adapted to engage the latch hook ramp 34. In operation, the latch hook ramp 34 is pushed towards and engages against the latch actuation ramp 42, which pushes the latch hook 30 through the latch aperture 40 along an angled, downwards path away from the latch body 16. The latch hook 30 is thereby fully disengaged from and removed from the catch plate 12.

Abstract: A kit for selectively constructing a system for releasably maintaining a movable closure element in a predetermined position relative to a frame upon which the closure element is movably mounted. The kit includes a base assembly, a first mechanism that is operably attachable to the base assembly to define a first system having a first configuration that is operable in a first manner, and a second mechanism that is operably attachable to the base assembly to define a second system having a second configuration that is operable in a second manner that is different than the first manner. The first and second mechanisms are interchangeably operably attachable to the base assembly, one in place of the other, to allow a selection to be made by an assembler as to a desired configuration and manner of operation of a system.

Abstract: A lock device is used for a foldable electronic apparatus. The lock device is mounted on a display unit of the electronic apparatus. The lock device includes a rotatable bolt, an actuator, and an elastic bolt holder. The rotatable bolt is rotatably mounted on the display unit and includes two latch tenons. The elastic bolt holder connects the actuator and the rotatable bolt and keeps the rotatable bolt at a first direction. Movement of the actuator causes the rotatable bolt to rotate from the first direction to a second direction. The lock device can couples with a notch successfully even assemble error exists.

Abstract: A case latch assembly 10 comprising a latch housing 12, a strike member 14 and a bolt assembly 16. The bolt assembly 16 comprises a bolt arm 30, mounting brackets 32, 34, spring members 36, 38 and a latch key 40. Each mounting bracket 32, 34 is generally z-shaped and comprises a mounting section 46, a fixing section 48 and an interconnecting section 50. Fixing ends 36a of the springs 36 are located through fixing apertures 54. The fixing sections 48 are separated such that they are spaced from the edges of the bolt arm 30 and the fixing ends 36a of the springs 36 are located between their fixing section 48 and the edge of the bolt arm 30. The bolt arm 30 is thus removed from the fixing ends 36a of the spring members 36, and can be provided close to the bottom of its housing 22, enabling the bolt assembly 16 to be fully received within the latch housing 12.

Abstract: A lock assembly for use with a sliding door. The lock assembly includes a non-handed miniature mortise lock having a retractable and extendable tongue able to move between a locked position and an unlocked position. The assembly includes a rotatable spindle and a slidable piece. Manipulation of the slidable piece rotates the rotatable spindle and activates the mortise lock between the locked and unlocked positions.

Abstract: An automatic gate closer latch for use in centrally securing a commercial or industrial swinging gate to a stationary fence post, especially useful in the farming and ranching applications, includes a gate catcher assembly mounted on a swivel bolt, complete with directional pressure finders, a bearing tensioner assembly consisting of a bearing tensioner plate, a roller bearing, a tension spring and mounting hardware. The said gate latch catcher assembly is a flat bar segment composed of three right angled bends designed similar to open fingers, to catch the oncoming protruded gate edge post. The directional pressure fingers incorporated in the opposite ends of the gate catcher finger assembly allows the spring tension assembly to maximize its distance in the central neutral position thus causing an automatic closed latch phenomenon. Above normal pressure from an implement on either side of the gate will promote the fingers to open allowing the gate to swing open.

Abstract: A locking device for locking a movable module of an electronic apparatus disclosed by the invention mainly includes a control member and a latch connected to the control member. The control member is selectively movable between a first position for locking the movable module and a second position for releasing the movable module. When the latch stops at the first position, it also latches onto an operational interface or a mechanism component so as to prevent the user from electrically or mechanically operating the apparatus.

Abstract: A locking/unlocking mechanism for an operable cover of a body such as a printer to lock and unlock the body with a single operation and to a printer having an operable cover and a locking/unlocking mechanism for the operable cover. The operable cover is locked when a cover side engaging part in the cover engages a body-side engaging part in the body. The printer has a cover opening button 10 which is depressed to a first operating position 10B, causing a locking lever 14 in the locking/unlocking mechanism 11 to slide from a locked position 14A to an unlocked position 14B. The locking lever has an engaging channel 15 which releases the cover-side engaging part 12 of the operable cover 4, thereby disengaging the operable cover 4 but not opening it.

Abstract: An electromechanical interlock for a swinging elevator door is disclosed. The interlock comprises a pivotal hook member that may be attached to a swinging elevator door. The hook has a beak end and may pivot between a locked and an unlocked position. Disposed on the beak end is an electrical conductor. When the interlock is in the locked position, the beak end engages a lug and the conductor contacts electrical contacts to complete an electrical circuit. A solenoid pivots the hook from a locked position to an unlocked position. The electromechanical interlock may be adapted for use with sliding elevator doors as well as swinging doors.

Abstract: A door retaining device having particular application for preventing unauthorized removal of vending machine doors from vending machine housings. The door retaining device is fixedly secured at a first end to the vending machine door, and cooperates with the vending machine housing at a second end to permit rotation of the door relative to the housing about at least one hinge pin, but to substantially prevent movement of the door relative to the housing other than rotation about the at least one hinge pin. The door retaining device has a hook portion at the second end that extends into the housing through an aperture in the housing. The hook portion engages the housing to prevent movement of the door relative to the housing other than rotation about the at least one hinge pin.

Abstract: A cover-locking device for an optical disk drive. The cover-locking device includes a locking protrusion and a locking mechanism. The locking protrusion is formed on the cover and is provided with a locking hole. The locking mechanism is mounted on the main body, comprising an electromagnetic switch, a hook base, a hook, a pushing part and a link. The electromagnetic switch includes an extensible magnet adapted to move between a first position and a second position. The hook is pivotally connected to the hook base to lock the locking protrusion at the locking hole, and is further pivotally connected to the extensible magnet. The pushing part is pivotally connected to the hook base, comprising a pushing end adapted to open the cover. The link is pivotally connected to the pushing part with one end and pivotally connected to the extensible magnet with another end.

Abstract: The present invention provides a latch system and method which is rotatably engaged/disengaged. Accordingly, the preferred embodiment provides a latch actuator, disposed in a latch cup of a surface to be provided restricted movement, and a latch bolt coupled to the latch actuator such that rotational manipulation of the latch actuator results in rotational manipulation of the latch bolt. Preferred embodiments of the present invention include a locking mechanism allowing controlled restriction of the rotational movement of the latch mechanism.

Abstract: The present invention is a latch for securing a first closure member, such as a lid or cover of an automotive vehicle, in place relative to a second closure member, such as a floor or wall of an automotive vehicle. The latch includes a housing and a handle. The housing includes a channel. The handle includes a handle member, a pawl, a pair of pawl-related biasing members, and a channel-related biasing member. The latch can be opened and closed by grasping and rotating the handle member. The first closure member that is in contact with the latch may be raised by grasping and rotating the handle member upward, and then raising the first closure member upward by way of the handle member. The first closure member may be lowered by grasping and rotating the handle member upward, and then lowering the first closure member downward by way of the handle. Alternatively, the first closure member may be lowered by releasing the handle member when the first closure member is in the raised position.

Abstract: A lock for locking the cover of a compartment to prevent opening of the cover is described. The cover is provided with a biased latch at one end which is movable between a latch position for latching against a mating locking lip of the compartment and a release position to allow the cover to be removed from the compartment. The lock comprises a means for insertion into the biased latch once the cover has been attached to the compartment to prevent the biased latch from moving to the release position.

Abstract: The present invention provides a fastener for packaging which has a relatively simple structure and yet can carry out a binding operation easily thus exhibiting a favorable usability. The fastener for packaging binds or connects a first plate body and a second plate body in the state that they are overlapped with their through holes aligned with each other. The fastener comprises a base body which is insertable into respective through holes, a first flange portion and a second flange portion which extend in the approximately horizontal direction from the base body, a moveable hook member having an approximately L shape, the moveable member is rotatably connected to a portion of the base body, and a lock means capable of locking and holding a state that the moveable hook member takes when the moveable hook member is rotated to a through hole mounting position by way of a hinge portion.

Abstract: A pawl latch having slam-action latching and rotational unlatching actuation is mounted in an aperture formed in a closure panel for releasably retaining the closure panel against a corresponding frame, the pawl latch including a one-piece body with a pawl, a gripping portion, mounting elements, and a spring member, the spring member having a first end and a second end, the first end being connected to the latch body and the second end being held by the closure panel to provide a biasing force to return the pawl to its active position where it is aligned with a keeper member provided on the corresponding frame for slam action latching of the latch.

Abstract: A roller screen includes a gauze screen, a roll-up mechanism for the gauze screen, a pull beam connected to the free end of the gauze screen, guides for guiding the pull beam and the side edges of the gauze screen. Furthermore spring hooks are used which cooperate with cams present on the ends of the pull beam. The spring hooks are mounted in the ends of the guides remote from the roll-up mechanism on a base which fits in the end of a guide. The spring hooks extend substantially in a longitudinal direction of the guides. The spring force of the hooks can be adjusted by an adjusting screw mounted in the base. The adjusting screw extends substantially perpendicularly to the hook and is accessible via an opening formed in a side wall of the guide.

Abstract: An over-center toggle latch for securing two members together having a latch housing affixed to one of the members, a keeper affixed to the other of the members, a toggle pivotally mounted within the housing for pivotal movement between a first position and a second position, and a retainer disposed within the housing and in pivotal contact with each of the housing and the toggle for retaining the toggle in either of the first and second positions. The keeper pivots the toggle from the first position to the second position upon the closing of the latch and the keeper pivots the toggle from the second position to the first position upon the opening of the latch. A switch operable between a closed position and an open position wherein a circuit is closed only when the keeper means is in the second position and the circuit is open only when the keeper is in the first position, the switch being completely inoperable until the keeper is fully inserted in the housing whereby closing of the circuit is avoided.

Abstract: A locking latch mechanism for an insulation displacement connector comprises a cap section including a biasing member, a base section and a latch member. The cap section is movable between an open position and a closed position. The base section is hingedly connected to the cap section and includes a latch retaining portion. The latch member is movable between an engaged position and a disengaged position such that the latch member maintains the cap section in the closed position when the latch member is in the engaged position. The latch member includes a latch engaging portion which is lockingly matingly engaged with the latch retaining portion to lock the latch in the engaged position, thereby maintaining the cap section in the closed position.

Abstract: A door locking device for an electrical apparatus, in particular a household appliance, including a lock having a locking slide, supported in the lock and movable back and forth between an opening position and a closing position, having a blocking device for arresting the locking slide in its closing position, and having a locking tang (1, 51) which drops into the lock as the appliance door is being closed and once the appliance door is in its closed state is in engagement with the locking slide, in which a gear mechanism is permanently operative between the locking slide and the locking tang, for converting the drop-in motion of the locking tang upon closure or the dropping-out motion of the locking tang upon opening of the appliance door into a displacement motion of the locking slide (9, 69) once the blocking device is deactivated, and having a compulsory guidance of the locking tang in the lock in such a way that every opening motion of the appliance door from any arbitrary door position, once the blockin

Abstract: A latch has a housing for mounting in a door, panel or the like and a moveable pawl which engages a frame, panel or the like in a fastened position. The latch is provided with a substantially resilient member in the form of a seal, which is adapted to be compressed when the pawl is in the fastened position for inhibiting the passage of matter.

Abstract: A latch mechanism for use with an oven having a door, the latch mechanism including a base plate which pivotably supports a latch member about a pivot point. The latch member is rotatable between a latched and unlatched position and includes a drive surface offset from the pivot point. An actuator pin is supported by the base plate for rectilinear movement wherein the actuator pin has an outer end extending beyond the base plate for engaging the oven door upon closure and an inner end drivingly engaging the drive surface for rotating the latch member into a latched position against a spring bias. The base plate is a molded plastic member having a boss including snap connection means for rotatably supporting the latch member and a sleeve for slidingly supporting the actuator pin for rectilinear movement. A solenoid is mounted to the base plate and has a locking pin selectably movable between an extended position and a retracted position.

Abstract: A locking handle for a refrigerator includes a mounting element rigidly secured to a refrigerator door, a hand grip rigidly secured to the mounting element, and a latch attached to the mounting element. The latch has a catch movable between a locked position and an unlocked position and an actuator operably connected to the catch for moving the catch from the locked position to the unlocked position. The latch provides a positive lock which is actuated to an unlocked position with a manipulation separate from pulling the hand grip but has an actuator located near the hand grip so that it can be manipulated by a hand grasping and pulling the hand grip. In a first embodiment, the catch is integrally molded with the mounting portion and is laterally deflectable away from a retainer mounted beside the door. In a second embodiment the catch is a vertically extending spindle which is downwardly movable away from a retainer mounted above the door.

Abstract: An improved latch mechanism is provided for use in a motor control center having a door and a frame which the door cooperatively closes onto. The latch mechanism is capable of securing the door against the frame and is rotatable between an OPEN position and a CLOSED position. The latch mechanism includes a body portion, rotatably coupled to the door, capable of engaging a slot disposed in the frame for securing the door against the frame. A stop, disposed on the body portion, is provided for limiting the rotation of the body portion.

Abstract: A thrust reverser with doors (5, 6) for an aircraft jet engine includes a radial stop which includes elements (16, 28) integral with the front end of each door (5, 6) and capable of interacting with mating elements (15, 3) that are integral with the engine. The radial stop is designed to prevent the deployment of the door in an advanced position of its axis of pivoting (P--P) and to allow this deployment in a retreated position of the axis of pivoting (P--P).

Abstract: A latch for a hitch having release mechanism including a pair of parallel oriented cylinders which are disposed to lock together two separable elements of a hitch. The locking cylinders are disposed between the confronting surfaces within portions of the separable hitch elements to receive a compression force across the both of the cylinders when the hitch elements are receiving an tensions so as to separate them. To release the hitch elements while under tension, one of the cylinders is rotated, causing the adjacent, parallel disposed cylinder to rotate in the opposite direction, rolling over the confronting surfaces in the same directions, and eventually out of and releasing the two separable hitch elements. Multiple embodiments are shown which relate to variations in hitch styles, and further embodiments relate to smaller clamping devices, such as hand tools, and to rotational couplers which are releasable while under torque.

Abstract: An improved door-holding door stop is provided, which is secured to a structure adjacent to a fully opened door, and has a tip of a hook-type fastening material that can be aligned at various angles in a cooperative relationship with a contributory door disk secured to a door, that has a front of a loop-type fastening material, which in combination provide a functional method of stopping and retaining a door in a fully opened position.

Abstract: A latch assembly (90) is disclosed having structure for controlling (76) and restricting (70) the rotation of a bolt (48) carrying arm (36). The structure facilitates securement together of first and second members, e.g., an equipment case lid (22) and body (24), by preventing inadvertent abutment between the bolt and a latch striker plate (32). The structure also reduces the hazard of an uncontrolled arm.

Abstract: A latch for releasably securing the trunk lid of a vehicle which may be actuated by a person inside the trunk in emergency situations. The device includes a latch assembly operable by both a conventional exterior lock assembly and a release assembly positioned within the trunk compartment. The release assembly utilizes a flexible cable coupled to a detent lever within the latch in which the cable may be pulled by a person inside the trunk to open the trunk lid. Alternatively or additionally, the release assembly may utilize a spring loaded button which engages the detent lever to release the lid upon actuation. An alternate embodiment of the present invention includes a luminescent coating on the release assembly.

Abstract: A wall mounted soap dispenser made of plastic is described. The dispenser includes a hand-operated pump which dispenses liquid soap under pressure and which can be manufactured inexpensively. A disposable container of liquid soap is inserted in the dispenser to refill the dispenser. The pump has on its top a pan to collect liquid spilled as the disposable container is inserted. The pump and container are enclosed in a plastic housing which hinges from a plastic wall plate. A plastic latch with plastic key is used to lock the housing to the wall mounting plate. The pump mechanism uses a piston of two sections of different diameter and corresponding piston chamber of two sections of different diameter. There is an adjustable piston stroke length limiting mechanism. The piston is attached to the lever which moves the piston by means of a crossbar on the end of the piston rod. The crossbar is inserted in a slot in the lever and then turned to cross the slot.

Abstract: For automotive use, an inexpensive gasoline tank theft guard adjustably attached so that owner may integrate the guard or not by choice of a quick manual setting. The guard utilizes a gasoline fill-tube cover, a lockable body-entry panel, and the owner's key and perhaps his license plate for intercepting access to the gasoline tank when cover and panel are proximate and closed, and for protection against gasoline theft when entry panel is locked. By way of example, a pin (10, FIGS. 3-6), pivotally anchored inside gasoline fill-tube cover (6) engages a receptacle (9) in the trunk lid (2) when the lid closes (FIG. 5). Owner's key (1) unlocks lid to free pin. Anchor heads (4, FIG. 3) are concealed behind mounted license plate (7, FIG. 4) and are designed to frustrate tampering. Stability and rattle of the adjustable pin are controlled manually (FIG. 7) and automatically (FIG. 8). Pin (10) pivots manually aside to disconnect the system.

Abstract: A self-locking device for locking a movable member to a stationary member including a rotatable latch member mounted on the stationary member and having a pair of ears located on opposite sides of its axis of rotation, the movable member having a pair of heels cooperations with the ears of the latch member in such a way that longitudinal movement of the movable member relative to the stationary member and toward the closed position causes one of the heels to engage one of the ears on the latch member thereby rotating the latch member until the other ear engages the other heel to latch the movable member in the closed position, the face on the other ear and the face on the other heel being angularly positioned with respect to the axis of rotation of the latch member such that movement of the other heel toward the open position will not impart any substantial rotary movement to the latch member to cause it to rotate to an unlatched position, thereby preventing movement of the movable member in the opening direc