Abstract: A door lock has an open lever linked with an open rod and pivotally mounted on a base plate and a locking lever linked with a locking link and pivotally mounted on a sub plate, the open lever and the locking lever being linked with each other through a locking rod so that a door is selectively locked and unlocked by the pivotal motion of the open lever which is caused by the pivotal motion of the locking lever. The door lock further has a protective wall in the shape of an upright wall which is formed integral with the side surface of the open lever which faces the locking lever. Since the protective wall which is formed integral with the open lever functions as a protective means, it is possible to reduce the number of parts and the number of man-hours needed for the assembling operation and further use the door lock in common to all types of vehicle.

Abstract: The water-tight, noise-proof sealed type locking apparatus of this invention has recesses formed in the body 5. In the recess 15 formed on the front side of the body 5 a latch 13 and a rachet 14 are installed; in the recess 16 formed on the back side of the body 5 rotation control members for the rachet 14 is installed. The front of the body 5 is covered with a cover plate 6 and the back with a back plate 7. Wires connected to the rotation control members are fitted water-tightly to the body 5.

Abstract: The apparatus for mounting the outer door handle assembly to the automotive door according to the invention comprises: an outer handle body consisting of an engagement projection, an engagement surface, and a flange; and a mounting fitting consisting of an engagement portion for engagement with the engagement projection, a rotatable engagement claw for engagement with the engagement surface, and a projection edge.The outer handle body is inserted from outside into the mounting opening in the outer plate of the door; the engagement portion of the mounting fitting is engaged from inside the door with the engagement projection; and the engagement claw is rotated to engage with the engagement surface. As a result the outer plate of the door is tightly clamped by the flange and the projection edge, thus permitting the outer door handle assembly to be securely mounted to the door without the use of bolts and nuts.

Abstract: A vehicle door lock system includes a rotary latch having an elongate housing with opposed ends that are tapered so as to be securely received, when "latched," within an elongate U-shaped striker assembly that has a pair of spaced, inwardly facing wedge blocks at opposed ends. As the rotary latch releasably engages the striker to effect "latching," the tapered end regions of the latch housing are wedgingly engaged by the wedge blocks of the striker to guide the latch into properly aligned engagement with the striker, and to maintain proper alignment of the rotary latch with the striker while "latched." By this arrangement, a strong, racking-resistant type of latched connection is provided that will assist in preventing undesired relative movements of a door and a door frame on which the latch and striker are mounted, respectively. Handle assemblies are connected to the rotary latch to operate the latch to effect "unlatching" of the latch and the striker.

Abstract: A combination door lock having a self-canceling combination mechanism which is secured inside the lock housing and is provided with spring-biased hook engaging fingers which engage one or more of the combination discs when these discs are aligned at a predetermined position where a retracting cam engages a bolt-retracting lever. Once the bolt is retracted by the lever these hook fingers engage with an associated combination disc and move it out of its predetermined position to a random position thereby scrambling or self-canceling the combination or the placement of the discs. Accordingly, it is not possible to predict the precise position of the combination discs after the bolt has been retracted and the door opened.

Abstract: An elongated bolt extension member is coupled to the bolt head of a door latch, and a pivotally mounted latch cam engages the elongated bolt extension member to slide the latch into and out of its retracted position. The elongated bolt extension member has a top surface with two spaced openings corresponding to two different backset distances. The latch cam extends into one or the other of the openings to adjust the backset distance.

Abstract: A tubular door lock making use of two pairs of motive teeth in a pulling plate for a two-tooth gear to selectively mesh with for an motive action. The gear is confined within a hole cut in a moving shell, which can move outside along the assembling plates and be fixed to keep a hole in it to exactly face against a hole in the assembling plates so as to enable the foot post of the door lock to penetrate through the both holes, whether this lock is adjusted in the short or in the long size.

Abstract: A lock assembly comprising an L-shaped member (30) (120) having a first plate (32) (124) and a second plate (34) (122). Secured within the L-shaped member is a solid block core (50) (140) with openings (54) (64) (74) (90) (146) for receiving portions of lock hardware.

Abstract: An escutcheon plate having a length, height and depth, the plate comprising a peripheral flange carrying an outer surface surrounding a central opening, the other side of the flange carrying a surface for engaging the material of the exterior door panel of a vehicle door surrounding the opening or aperture provided through the exterior door panel for access to the handle to open and close the door, at least three parallel rows of ridges, triangular in cross-section directed laterally of the escutcheon plate to permit an assembly carrying the handle to be secured thereto by at least three staggered rows of ridges triangular in cross-section and directed laterally to permit the meshing of the rows of ridges until the desired relative lateral positions of the components are reached at which point the escutcheon plate may be anchored relative to the assembly by a screw to the assembly for the handle and which intermeshed rows of ridges may only be joined or separated by moving them laterally towards or away from

Abstract: A lock, particularly adapted for use with the gate of a woven-wire partition, includes a housing having a faceplate, a wall projecting from the faceplate and substantially surrounding the interior of the housing, and a removable cover for closing the housing. A stationary bracket is located within the housing, and a latch is movable with respect to the housing between latched and unlatched positions, in response to operation of manually-manipulable means, such as a key-operable lock cylinder or a hand-operable fingerpiece. A member within the housing is cooperable with the stationary bracket for preventing movement of the latch in a direction transverse to the plane of the faceplate, so as to prevent the latch from accidentally falling out of the housing when the housing cover is removed and the housing is open. A spring within the housing serves two functions, namely, constantly urging the latch toward its unlatched position, and maintaining cooperation between the member and the bracket.

Abstract: A cover member is adapted to a multilock fitting applicable to doors, windows or the like, this fitting consisting essentially of a casement bolt, or a plurality of lock- or striker plate blocks. The cover member consists of a rectangular-sectioned tubular element of which one of the minor sides is coplanar with the lateral edge of the jamb of the movable or fixed frame of the door, window or the like, one of the major sides of the tubular element provided with apertures covering the plurality of lock- or striker plate blocks and comprising detent-positioning means interposed between the lock- or striker plate blocks and the inner surface of the movable or fixed frame, respectively, of the door, window or the like.

Abstract: A cylindrical lever handle lock mounted in a door panel having a transverse bore therethrough is secured against rotation due to torque applied to the lever handles. The lock mechanism includes a lock chassis having a pair of chassis support members each having a pair of slots on their peripheries. A pair of support plates having inwardly extending tongue members slide into the support plate openings. The support plates are of a diameter greater than the bore and have openings in the periphery of each which corresponds with a hole drilled in the door panel outside of the bore. Door handle roses are secured over the support plates by through-bolts which pass through the support plate peripheral openings and the drilled door holes. Threaded bushings are also utilized to tighten the support plates on either side of the bore. Additional tabs and screws may be used to non-rotatably secure the support plates to the door panel.

Abstract: A door blocking device comprises a bar, which extends along the edge of the door jamb, and a formed section for housing the bar, which formed section is fast with said edge and so shaped as to allow the bar to move, with only a small amount of friction, under the control of an actuating member, between a door blocking position and a door releasing position. The bar is equipped with means for returning it to the blocking position, and the actuating member drives it against the returning force in order to bring it in the releasing position. The blocking bar is equipped with a locking device comprising an elongated flat rod which, by a pivoting movement under the action of return springs, takes up a slanted position behind the bar and locks it in the door-blocking position. The bar actuating member can drive said bar back to the releasing position after controlling the retraction of the flat rod by means of a bent lever pivoting through the bar.

Abstract: A door set mounting including a baffle assembly formed of two circular sheet metal members arranged in face-to-face relationship, and a cylindrical tubular shroud also formed of sheet metal which extends around those members so as to be substantially coaxial therewith. Each circular member has a transversely extending channel formed therein and those channels combine to form a receptacle for a door latch housing. An opening formed through the base of each channel allows passage of a drive spindle for the latch. The two circular members are held in face-to-face relationship by a pair of clips, each of which straddles those members, and the same clips also serve to hold the shroud in assembly with the circular members. Preferably, the shroud is formed of two parts each of which is held by a respective one of the clips.

Abstract: One of the most popular ways of gaining access to a locked premise is through forced entry of a door assembly. Presented is a door assembly incorporating a system of components cooperating with a door assembly to increase resistance to forced entry through such door assembly. Forced entry is generally defined as being an unauthorized entry accomplished by the use of force upon the physical components of the premises. Such forced entry usually takes the form of battering on the door adjacent to the door lock assembly, or adjacent to the center hinge of the door. Presented is a door assembly incorporating a reinforcement plate for the door lock assembly, a strike plate of novel design cooperating with the door assembly to strengthen the union between the door lock assembly and the lock jamb of the door frame, and a reinforcement plate associated with one or all of the hinges to reinforce the union between the hinges and the hinge jamb.

Abstract: A reversible latch bolt and lock bolt assembly, where the latch bolt has a spring mounted latch bolt member with a slanted contact face. The latch bolt member can be rotated 180.degree. about its horizontal lengthwise axis to position the slanted contact face in either of two orientations. An outer cover plate can be rotated about its vertical center axis to properly receive the latch bolt in either of two positions. Thus, the same latch bolt and lock bolt assembly can be utilized in a door which opens in either an inside or an outside direction. Further, the operating knobs and push buttons are made reversible so that the assembly can be arranged in four different positional combinations.

Abstract: An improved latch bolt is disclosed that has a single sliding tail with two pairs of prominences permanently fixed to the tail that the latch bolt has variable driving pin depths.

Abstract: A door-bolt assembly for a door set has a stud having a pair of arms which engage respective eccentric rods coupling the doorknobs together so that one of these arms is effective to retract the door bolt in one sense of rotation of the doorknobs while the other arm is rendered ineffective and vice versa.

Abstract: A length-adjustable latch having an outer housing and an inner housing. The length of the latch is adjusted by engaging an extension block of the inner housing with either of two positioned holes of the outer housing. A drive linkage connnects to a backset plate by engaging an extension element of the former with a sliding space of the latter. The combination of the drive linkage and the backset plate is encompassed by a spring but with either a trail end of the backset plate or both the rear portions of the backset plate and the drive linkage passing through each longitudinal opening of a slidable plate, the inner housing, an installation seat and the outer housing. Due to the manner of engagement between the inner housing and the outer housing and the corresponding position of the drive linkage and the backset plate, the length of the latch is adjustable, as desired, for a 60 mm (23/8") backset length or a 700 mm (23/4") backset length .

Abstract: A latch including inner and outer cylindrical housings, the inner housing having a guide slot thereon for receiving a guide piece and fixing the slide path of the outer housing with respect to the inner housing. The inner housing has a protuberance which is engageable with a minimum or a maximum backset hole. A retainer plate having two retainer posts fits into the inner housing. The retainer post receives springs for loading a main bolt and an auxiliary bolt. A link and a slide bar can be used according to whether minimum or maximum backset is required. A stabilizer also prevents the auxiliary bolt from being forced open from the outside.

Abstract: To increase strength or rigidity of a door lock device for an automotive vehicle, the box-shaped base housing and the cover plate are formed in enclosed cross section by connecting two flange portions thereof. Further, the base housing and the cover plate are connected via two axles for supporting the latch and the lock plate. On the other hand, to facilitate assembling work of the door lock device, an actuator machanism including a latch release lever, a lock/unlock plate, and an engage lever is directly attached to the cover plate without increasing the mounting space.

Abstract: The dead bolt assembly of this invention features a novel cam activating assembly which permits election of one of two door knob spindle backsets which are in standard usage without the need for substituting different operating assemblies or reversing cylinder or thumbturn spindle components. The cam activating assembly features two parallel rotatably mounted cams which operate about two separate and parallel axes which are the centers of the two spindle backset in common industry usage. The two cams accept the door cylinder drive bar in one of the two predetermined backset positions. Each cam is capable of independently operating the latchbolt in either direction of rotation through coupled opposed cam surface which coact with the latch operating plate in conjunction with a coupling idler to convert the rotary motion of the cams to the reciprocating motion required to extend or retract the bolt.

Abstract: A decorative surface-mounted latch bolt assembly includes a decorative housing, a chassis providing an elongated passage therewithin, and a guide member disposed within the passage of the chassis and providing an elongated channel in which is seated the latch bolt. The guide member is fabricated of synthetic resin and its passage is configured and dimensioned to snugly receive the latch bolt so as to preclude its rattling or inadvertent movement therewithin. An actuator is supported above the top surface of the housing, and a connecting element extends between the actuator and the latch bolt through registering openings in the top wall of the housing, the chassis and the guide member, and these apertures are elongated so as to permit the desired longitudinal movement of the latch bolt.

Abstract: A backset latch mechanism having a longitudinal housing adjustable from its rearward backset position in which a traverse spindle-driven swivel unit is engageable with a bolt retractor in the housing having transverse rearward lips engaging the swivel unit passing through the housing. The swivel unit is transversely and longitudinally moveable in the housing to permit the unit to pass forwardly in the housing past traverse forward lips and into engagement with such forward lips to thereby accomplish backset adjustment. The swivel unit is movable in opposite directions to place the mechanism in its first backset position.

Abstract: An exit device providing adjustable backset. This is achieved by having the touch bar linked to a driven element adjacent the base plate of the unit and the latch mechanism linked to an activator element also adjacent the base plate. These two elements are coupled by a sliding drive plate having a plurality of sets of apertures spaced along it to receive both elements respectively in a selected set. An exterior operator of specified backset is provided and connects with a cam adjacent an end of the drive plate to slide the plate when the exterior operator is moved. By selecting the proper set of apertures for the elements the installer can see that the cam is at the proper backset and therefore aligned with the operator.

Abstract: A two-piece spring latch assembly operable as a closure device for a load center cabinet, wherein the latch assembly is slidably engagable with the door of a load center cabinet. The latch assembly includes a sliding latch body having a top surface with a depression for facilitating engagement of the latch body. The latch body also includes a latch member for engaging the frame of the load center cabinet. A latch spring is mounted to the latch member and defines a spring member for urging the sliding latch body into a latched position. The latch spring also defines a latch bearing surface and a strike bearing surface. These surfaces are fabricated from the same material as the spring member and resist wear through repeated cycles of engagement and disengagement with the frame of the load center cabinet.

Abstract: A latch body is formed, at its recessed inner side, with a pair of integral tubular members made of plastics. A latch element adapted to catch a striker set in an automobile door and a paul are rotatably mounted on the tubular members for engagement with each other. A latch returning spring is stretched between the body and the latch element. An door opening lever and a door locking lever both linked to the pawl are rotatably mounted on another pair of plastic tubular members each of which is formed on the outer side of said body in the coaxial relation with corresponding one of the first pair of the tubular members. Each of a pair of pins is inserted through the tubular members in the coaxial relation and is swaged in a base plate coupled oppositely with the body.

Abstract: An auxiliary lock has a base, an extending shell and a linking arm that, through holes, slots and projections disposed thereon connect adjustably together for lengthening or shortening the assembly while maintaining constant the length of the dead bolt exposed out of a cylinder into a faceplate.

Abstract: The invention relates to improvements for an adjustable dead bolt assembly which includes an adjustable bolt extension member connected to a bolt and an extension housing connected to a bolt casing for accommodating the bolt extension member, wherein the bolt is provided with a uniform height and width throughout the length of the bolt for reducing the cost of the material and simplifying the processing steps.

Abstract: This invention is a kind of tubular lock with an adjustable device for two-size setting. Changing the lock into two sizes is accomplished by the two different combinations of the U-shaped hole of an inside cylinder with a projected ball of an outside cylinder and the two different combinations of the U-shaped hole of a location tube inside a dead bolt with the teeth of a moving plate.

Abstract: An adjustable deadlatch for a lockset for adjusting to either of two backset positions, including a first cylindrical member having a first particular diameter. A second cylindrical member has a second diameter larger than the first diameter and with the first and second cylindrical members located in a telescopic arrangement. A detent is formed between the first and second cylindrical members and has two longitudinal locking detent positions corresponding to the two backset positions. A deadbolt is located within the first cylindrical member and includes a longitudinal opening. A longitudinal portion of an actuating member is located within the longitudinal opening in the deadbolt. The longitudinal portion includes a longitudinal slot having a length corresponding to the distance between the two backset positions. A pin member passes through the deadbolt and has an inner end located in and guided by the slot.

Abstract: This auxiliary lock has a main cylinder, an extending cylinder, a linking plate, a dead bolt, an assembling plate and a fixing plate that, through the screwed notch and a fixing pin can connect selectively together in a short or long position and is therefore able to change the distance between the fixing plate and the assembling plate.

Abstract: A tubular lockset which includes a backset plate and a drive linkage, both of which are integrated within the rear portion of a latch case. The surface of the backset plate and drive linkage are set with slots and openings for the mounting of drive unit at the fore or rear position within the slots. Two protrusions are provided on one end of the drive linkage, such that the foot of the drive unit engages with the protrusion of the drive linkage and drives the latch case forward and backward. An opening is provided on the drive linkage and slot is provided on each backset plate for the fixation of the drive unit, i.e. the drive unit is fixed within the slot of the backset plate and the opening of drive linkage. The backset length of the amphi-latch can be adjusted to either 60 mm (23/8") or 70 mm (23/4").

Abstract: This tubular lock has a device that can adjust its size into two kinds for fixing on a door. The device utilizes the movement of an extending plate and an auxiliary plate, changing their positions to either of the two sizes, but the lock still works in spite of the size change.

Abstract: A bolt mountable on adjacent members, such as a door and a door frame, to hold the members lockably secure, comprises a bolt assembly on a first member and a keeper assembly on the second member. The bolt assembly includes a flat, elongated slide bolt slidably therein. The slide bolt has a locking pin opening at one end to receive and hold securely a locking pin of the keeper assembly, and a control stem at the other end extending through a slot in the bolt to the exterior. A pair of shoulders at the end of the slide bolt define a narrow passageway communicating with the locking pin opening. A narrow stem is connected axially to the locking pin and extends through an opening in the keeper assembly cover to the exterior of the bolt. A coil spring below the locking pin urges the locking pin toward the exterior.

Abstract: A latchbolt slide extension for a cylindrical lockset which comprises a spring-loaded latch and a cylindrical body. The slide extension is connected to the spring-loaded latch and the cylindrical body so as to make such cylindrical lockset with a shorter backset latch to be installed to a door with a larger backset.

Abstract: This invention concerns a tubular door lock with a dead bolt adjustable in two sizes without anti-burglary device. It contains an extending shell covering outside of the basic shell and able to move inward or outward so as to alter the length of the dead bolt to the bottom of the extending shell into two sizes--so-called 60 mm and 70 mm--for fixing on a door.

Abstract: A trumpet lock has an extending shell and a rotating shell which are disposed about a cylinder. The rotating shell and extending shell can be manipulated by a projection-and-slot arrangement into two positions, namely a short position and a long position. The trumpet lock has a dead bolt and an anti-burglar bolt which are linked by a guarding plate, linking-plate, pulling plate, and extending plate. When a door is closed, the anti-burglar bolt is pushed into the shell and remains there so as to prevent entry of the dead bolt into the shell by the obstruction of the guarding plate against the rear portion of the dead bolt.

Abstract: This cylinder door lock has a base which contains a guarding plate having two notches--one is to link with a spring plate and a fixing cross pin and the other with a stopping plate. Covering outside of the base is an extending shell which has its bottom wall linked with an actuating plate having its two actuating hooks exposed outside the bottom wall so as to link with the actuating device of the knob. And by means of the extending of the extending shell, the distance between the actuating hooks and the dead bolt is able to be altered.

Abstract: An adjustable bolt for deadbolt locksets which has a moveable catch to be inserted into a first indicator hole or a second indicator hole and a plunger pin to be inserted into a first slot or second slot of an adjustable slot. When the moveable catch and plunger pin are set at the first position, the lockset can be used for 70 mm backset. When the moveable catch and plunger pin link are set at the second position, the lockset is used for 60 mm backset.

Abstract: This invention relates to a tubular door lock which mainly includes a basic shell, an extending shell, a dead bolt, two assembling plates, a safety bolt, a locking plate and an unlocking plate. Through apertures, notches and holes disposed thereon, it can connect seletively together in a short (60 mm) or long (70 mm) position, and is therefore able to change the distance between the knob and the faceplate of the lock via adjustment of the extending shell.

Abstract: A latching assembly particularly well suited for being mounted on the outside of an insulated door without having to disturb or reduce the insulating material, and which is concealed from view by a channel-like handle used for opening the door. The latching assembly includes a helical cam that rotates as the handle pivots and further includes a follower that is driven by the helical cam parallel to the axis of rotation. The latch bolt is attached to this follower, whereby pivoting motion of the handle is converted into translational motion of the latch bolt.

Abstract: The mechanism is used with a latch-bolt unit (including a latch-bolt head) and a latch-handle assembly, for installation in a door. The novel mechanism includes a retracting member (connected to retract the latch-bolt head), with two different sets of extracting teeth to accommodate two different standard door-lock backset configurations of standard commercial doors. A connecting device, made up of first and second coupling members as well as a movable configuration-selector plate, is connected at the rear of the latch-bolt unit. The connecting device has two different sets of screw openings and clearing spaces. Its selector plate selectively effectuates either of these two different sets of connecting points, corresponding to the two standard backsets. The selector plate is thus used to adjust the latch-bolt mechanism quickly and easily, to accommodate the preferred door-lock backset--without any modification such as cutting or bending.

Abstract: An adjustable latch for a lockset for adjusting to either of two backset positions including a first cylindrical member having a first particular diameter. A second cylindrical member has a second diameter larger than the first diameter and with the first and second cylindrical members located in a telescopic arrangement for providing a telescopic adjustment between the cylindrical members. A first detent is interconnected between the first and second cylindrical members and has two detent positions corresponding to the two backset positions. A latch is located within the first cylindrical member. An actuating member is located without the cylindrical members at a position opposite to the latch for actuating the latch between open and closed positions. A second detent interconnects the latch and the actuating member and includes two detent positions corresponding to the two backset positions.

Abstract: A door set has its door knob engageable with a bolt pin through an eye which is formed in one piece with a screw threaded into a shank of the bolt pin to enable axial adjustment of the effective length of the bolt. The relative rotation of the shank and of the screw can be effected from within or even by rotation of the bolt, for which purpose flats can be provided on the bolt and on a sleeve in which the bolt is guided. The threaded portion of the screw can be provided on ribs which can pass axially along grooves in the internal thread on the shank of the bolt.

Abstract: This invention concerns about a tubular door lock which makes use of humps attached on a cylinder for guiding and restricting the movement of a rotating shell and an extending shell enabling assembling plates hooked with the bottom of the extending shell to alter the position of the center of a fan-shaped gear on it so that the teeth of the fan-shaped gear can engage with those of the dead bolt to make up an action of pulling the dead bolt back.

Abstract: The lock mechanism has a spring and cam assembly provided for returning the lock plunger assembly of the mechanism from a locked to an unlocked position thereof. In addition, however, the spring and cam assembly carries an enlongated limb. When the lock plunger assembly is translated to a locked position, it forces the limb to extend from the spring and cam assembly to a disposition in which it blocks a knob catch which is carried in the outside spindle of the mechanism. Accordingly, for being blocked by the limb, the knob catch cannot be depressed and, consequently, the knob which is latchingly engaged by the catch, cannot be removed from the outside spindle whenever the mechanism is in its locked disposition. The spring and cam assembly comprises a compact unit which is slidably received in the outside spindle and confiningly supports the limb therewithin for extension therefrom into obstruction of the knob catch.

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: The panel lock comprises an elongated housing having resilient wedging means at each end to secure the panel lock in place in a recess in a door, panel or like member. Formed integrally with the elongated housing are a lock housing with a cylindrical opening, a central recessed portion, and a bolt housing. A lock is rotatably secured in the opening in the lock housing. A bolt is slidably positioned in the bolt housing. A spring is operative between the bolt and the bolt housing to bias the bolt outwardly from the bolt housing into locking position. An actuator is slidably secured to the elongated housing and is adapted to engage the bolt. When the actuator is moved in one direction, the bolt is biased outwardly to a latching position by the spring. Movement of the actuator in an opposite direction will move the bolt against the bias of the spring to a release position. Cam means are secured to the lock and are rotatable therewith to lock or to release the actuator.

Abstract: A generally U-shaped protective door shield that engages the swingable edge of a door defines a bolt opening that is to be aligned with a bolt aperture of an underlying face plate of a bolt or lock mechanism. Common anchoring screws are driven through the shield and the face plate into the door, forming a single integral structure of increased strength and insuring proper alignment. Preferably the face plate has recessed screw holes that receive lips on the shield. These lips may be deformed into the recesses by the anchoring screws.