Abstract: An electronic handle for a vehicle door including an electronic device, an activation lever, and a bracket. The electronic device electronically activates a latch of the vehicle door. The activation lever is configured to rotate around an activation lever axis between a rest position in which the activation lever is released, and a mechanical activation position in which the activation lever is actuated for mechanically activating the latch of the vehicle door in case of default of the electronic device. The bracket receives the activation lever. The activation lever comprises a driving element pivotally connected to the activation lever, and the bracket comprises a flexible blade with a stop element.

Abstract: An exemplary pushbutton mechanism is configured for use with a lockset including a spindle and a plunger extending into the spindle, and generally includes a first component, a second component, and a cam interface. The first component is configured for rotational coupling with the plunger and for axial coupling with the spindle, and is rotatable between a locking orientation and an unlocking orientation. The second component is configured for rotational coupling with the spindle and for axial movement relative to the first component and the spindle, and is axially movable between a depressed position and a projected position. The cam interface is configured to correlate rotation of the first component with axial displacement of the second component.

Abstract: An exemplary catch assembly is configured for installation into a spindle, and generally includes a holder, a first catch, a second catch, and a bias mechanism. The holder is configured for mounting within the spindle. The first catch is mounted for movement relative to the holder between a first projected position and a first depressed position. The second catch is mounted for movement relative to the holder between a second projected position and a second depressed position. The bias mechanism biases the first catch toward the first projected position and biasing the second catch toward the second projected position.

Abstract: A door handle assembly that allows for easy removal and switching of handles. Such an arrangement may provide the flexibility to change handle orientation and interchange handles based on a user's circumstances or preferences such as when a door handle is configured as a lever having a curved shape. Further, the door handle may be configured as a door lock having a keypad access control. The face of the keypad accessible from outside the door may include auxiliary battery terminals to provide the user with easy accessibility for providing temporary power to the door lock with an auxiliary battery should the installed batteries housed within the door lock fail to provide sufficient power.

Abstract: A door lock cable and trim panel assembly for a motor vehicle includes a door lock cable and a trim panel assembly. The door lock cable includes a sheath assembly having a sheath tube and a cable core, a casing cap attached to an upper end of the sheath tube and an end insert element affixed to the cable core. The end insert element is inserted into an inside blind bore of a lock knob. In addition, the trim panel assembly includes a knob hole and a trim-interface slot transversely protruded from an inner surface of the trim panel assembly. The trim-interface slot has an upper and lower portion being engaged with the casing cap of the door lock cable.

Abstract: Embodiments for lock-and-dock cabinet knobs for doors, cabinets, drawers, or other fixtures, provides an interchangeable face element attachment. The hardware fixture includes an internally threaded insert, a mounting element housing the insert and having internal and top peripheral mechanical attachment assemblies, and a face element having mechanically attachment assemblies rotatably corresponding to and attaching to the mounting element mechanical assemblies and a planar top. The face element planar top can receive and secure several varied and customizable, interchangeable parts. The face element is mechanically affixed to the mounting element to resist being dislodged inadvertently, while being easily removed when so intended, in particular by the easily operable lock-and-dock assembly mounting without the need to disconnect the threaded insert and mounting element housing from the drawer or cabinet door. An embodiment provides a refillable domed capsule as part of removable face element.

Abstract: A double-sided gate handle device is described. The device includes a first portion having a first handle and a second portion having a second handle and a stopper component. The first portion is separated by a distance from the second portion and the first portion is parallel to the second portion. At least one adjustable component is disposed between the first portion and the second portion by the distance and is perpendicular to the first portion and the second portion. A gate is received within the distance. The at least one adjustable component allows the device to be adjusted to fit gates of varying widths. The stopper component comprises a body component and a first side disposed opposite a second side. The second side of the stopper component is configured to contact a gatepost.

Abstract: The present disclosure is directed to a lock assembly comprising an inner housing positionable on one side of a movable structure such as a door and an outer housing positionable on an opposing side of the structure. A pocket connection region having an aperture formed through a wall of the inner housing is configured to receive a head of a fastener therethrough. After the fastener extends through the aperture, a clamp device may be moved from an open position to a closed position so as to releasably lock the fastener to the pocket connection region of the inner housing. In another form, a retainer is configured to hold the fastener with respect to the inner housing during installation of the lock assembly. In this manner an inner housing may be quickly connected to an outer housing when installing a lock assembly to the structure.

Abstract: A multidirectional handle (10) is described, comprising a grip (11) assembled on a hollow handle body (46); a lever (12) associated with the grip (11) and with a lever support (14) contained in the handle body (46) and rotating together with grip (11) and lever support (14) and oscillating on the lever support (14); a first and a second cam elements (16, 18) associated with the lever (12); a revolving element (35) associated with the second cam element (18); and a connecting bar (45) connected to the revolving element (35) and adapted to connect the handle (10) to a lock.

Abstract: An adjustable-length handle assembly for a vehicle includes a retractor and a flexible web disposed to deploy from and retract into the retractor. A gripping portion is disposed at a distal end of the flexible web. The assembly may further include a flexible web guide roller having a brake mechanism, to allow adjusting the handle assembly to a desired position.

Abstract: Vehicle door handle chassis, motorized vehicles with door handle chassis, and methods of constructing and methods of using handle chassis are disclosed. Presented herein, for example, is a handle chassis for a motor vehicle door assembly. The door assembly includes a door handle and a support structure with a chassis aperture and at least one ramped tab. The handle chassis includes a rigid chassis body with a handle aperture that receives therein a portion of the door handle such that the door handle secures to the chassis body. One or more flexible hooks project from the chassis body. Each flexible hook is configured to insert into a receiving end of the chassis aperture, flex in a first direction while moving over a respective ramped tab towards a securing end, and thereafter flex in a second direction into a respective securing slot to thereby fasten the chassis to the support structure.

Abstract: A device includes a first part and a second part. The first part comprises a first fastening tool (FT1) and a first receptor (R1). The second part comprises a second receptor (R2) for engaging with the first fastening tool (FT1), and a movable latch (L) for engaging with the first receptor (R1). A single act of engaging the first fastening tool (FT1) with the second receptor (R2) to establish a first connection between the first and second parts, also makes the movable latch (L) engage with the first receptor (R1) to establish a second connection between the first and second parts. The second connection is spaced apart from the first connection. Both the first and second connections result from operating only the first fastening tool (FT1).

Abstract: A vehicle door includes a lock indicator assembly having an operable housing and an internal locking pin engaged with the operable housing and biased to a downward position within the operable housing, an interior door panel having a receptacle, wherein the operable housing is received within the receptacle and a lock rod operable to engage an underside of the operable housing and move the locking pin to an upward position.

Abstract: A door opener assembly may include an opener housing including a well and at least one hook member. A pin-reception channel may be formed through a portion of the well. The hook member(s) is configured to hook onto a portion of a frame. The door opener assembly may also include a frame-securing member having a pin retained within the pin-reception channel. The frame-securing member is configured to be urged into the well to lock the opener housing to the portion of the frame.

Abstract: A tiller knob has a top section having a lower periphery with a first plurality of indented segments and a bottom section having an upper periphery with a second plurality of indented segments. When the lower periphery and the upper periphery are mated with one another, the first plurality of indented segments cooperates with the second plurality of indented segments to form separate openings around an outer circumference of the tiller knob. A center section is located between the top section and the bottom section so that outer surfaces of extending segments are exposed through the separate openings. A multi-sectional tiller knob having top and bottom sections formed of a first material and a center section formed of a second material is also disclosed.

Abstract: An exemplary lock includes an outer spindle, a center spindle, and a lock control assembly selectively coupling the outer and center spindles. In one embodiment, the lock control assembly includes a cam coupled to the center spindle, a locking bar slidingly coupled to the outer spindle, a cam follower positioned between the locking bar and the cam, and a biasing element urging the locking bar into engagement with the cam follower. Engagement between the cam and the cam follower may be configured to move the cam follower longitudinally in response to relative rotation between the cam and the cam follower.

Abstract: The present invention relates to attractants for game animals. Specifically, the invention relates to a porous, natural shot material that can retain an attractant scent, as well as a related apparatus and method of dispersal.

Abstract: A door handle mounting system is comprised of a face plate having a handle mounting hole therein to receive a shank portion of a handle therethrough. A circumferential abutment is associated with the handle for abutment about the mounting hole on an outer face of the face plate when the shank portion is disposed thereinto. A retainer ring, formed of flexible non-metallic material having a memory, is adapted to engage with the shank portion adjacent a rear face of the face plate. The retainer ring has an integrally formed locking portion for locking engagement with the shank portion, and an integrally formed tensioning portion for flexible abutment with the rear face of the face plate to apply a pulling force on the shank portion while retaining the handle operationally secured to the face plate. A coupling sleeve is also securable to the shank portion and engageable by the retainer ring.

Abstract: A flat or three dimensional body constructed of a sanitary plastic, with an inner surface of the body defining a hollow interior adapted to contact a door hardware surface or projecting knob. The body in one variant exhibits an end face from which projects an undulating and perimeter extending skirt, the design of which providing additional fabric which, upon being grasped and rotated by a user, can be circumferentially deflected and folded over against itself and the underlying surfaces of the rotatable door knob over which the cover is installed, this in order to facilitate additional frictional engaging contact with the door handle. An inside or flattened base surface of the body can also exhibit any desired tacky or adhesive material in order to provide additional gripping engagement of the handle or knob.

Abstract: A window or door fitting for actuation of a mechanism integrated in a window or a door has a stop body that can be attached to the window or the door, a handle, that is rotatably mounted on the stop body in an axially fixed manner, a polygonal element for the mechanical coupling of the fitting to the mechanism integrated in the window of the door, and a coupling configuration formed between the handle and the polygonal element, with which a torque transference from the handle to the polygonal element can be effected, but can be blocked in the direction from the polygonal element to the handle. The coupling configuration has two driving elements for this, wherein a first diving element is connected to the handle in a rotationally locked manner, while a second driving element accommodates the polygon in a rotationally fixed manner.

Abstract: Disclosed in one aspect is the fixed door pull handle assembly that includes an elongated door pull handle with two or more support standoffs projecting away from the elongated door pull handle and securing the elongated door pull handle to the doorframe or to the body of the door. One of the support standoffs is user rotatable, and rotatably engages a door latch assembly within the door. In another aspect, the support standoff is not user rotatable. Instead, a center-pivoting handle is mounted in-line with one of the support standoffs and rotatably engages the door latch assembly within the door. The center-pivoting handle is recessed within the elongated handle.

Abstract: A lock assembly for a lever type handle is disclosed. In the lock assembly for the lever type handle according to an aspect to the invention, the lever type handle is for opening and closing a door by a rotation of a handle portion. The lock assembly includes a key module rotated by a key member, wherein the key module being positioned in the handle portion, a rotary shaft rotated by a rotation of the key module and locking or unlocking the door through a dead lock member, and a rotation transmitter for transmitting the rotation of the key module to the rotary shaft.

Abstract: An anti-ligative ergonomic type door-knob primarily of the institutional type, essentially serving to defeat the effort of a temporarily mentally-depressed room occupant from succeeding in committing self-hanging via contrived ensnaring by which to secure a cord like hanging-noose. Generic-variant embodiments of my anti-ligative doorknob are set forth, including both a circular and semi-circular escutcheon-plate for I-shaped V-shaped Y-shaped X-shaped fin-levers, and also a non-finned hemispherical iteration. The novel critical minimum approximate 40-degree anti-ligative principle of my LIFESTAR™ doorknobs reliably prevents a person ensnaring any heretofore problematically hazardous to portion of the door-knob assembly, while my optionally cooperating door latchbolt is formed to a matching critical minimum approximate 40-degree anti-ligative tri-beveled latchbolt as well.

Abstract: An electromechanical lock includes a spring-biased cylinder plug return mechanism for automatically rotating the rotatable plug to a home position after the plug has been rotated from the home position and thereafter released. In one embodiment, the cylinder plug return mechanism comprises a torsional spring coupled to the plug, In a second embodiment, the cylinder plug return mechanism comprises a slider that is coupled to the plug so that rotation of the plug moves the slider, thereby increasing the potential energy in a return spring, and when the plug is released, the increase potential energy is released by moving the slider, and the coupling between the slider and the plug causes the plug to rotate back to a home position.

Abstract: A vehicle door handle device is configured so that, after a frame is assembled to an outer panel of a slide door, a link base, a connecting link, and a hand grip are mounted to the frame. Next, a lever and a cap are mounted to the hand grip and the frame, thereby assembling each component member to the outer panel. When the hand grip is moved through a door opening operation in the same direction as a slide door opening direction, an operation force for releasing a fully closed latch mechanism, which retains the slide door in a fully closed state, is generated. In addition, when the hand grip is moved through a door closing operation in the same direction as a slide door closing direction, an operation force for releasing a fully opened latch mechanism, which retains the slide door in a fully opened state, is generated.

Abstract: A shell assembly includes a first shell having an elastic joint component securely formed on a side face of the first shell, a second shell received in the first shell having a concavity to correspondingly partially receive therein the joint component, such that the first shell and the second shell are separably connected together for a replacement application.

Abstract: A lock assembly that has a locked state and an unlocked state. The lock assembly includes a latch assembly that has a latch and a clutch mechanism. The clutch mechanism includes a first retractor that is movable in response to movement of an interior handle assembly and selectively in response to movement of the exterior handle assembly, and a second retractor that is movable in response to movement of the interior handle assembly and the exterior handle assembly. The first retractor is always engaged with the latch assembly to move the latch between the extended position and the retracted position. The second retractor is selectively disengaged from the latch assembly and is movable relative to the first retractor when the lock assembly is in the locked state.

Abstract: A closure retainment latch for cabinet doors and the like that provides a child resistant access protocol restricting opening to required user specific actions. A cabinet door handle selectively engages an interior magnet retainer latch allowing the door to open. Multiple handle engagement indicated operations are required to initiate handle drive activation and latch release in a rotational longitudinally engagement configurations of contoured interdependent engagement activation elements within the handle and latch specific cam engagement surfaces.

Abstract: A locking mechanism for a door includes an outside actuator, an inside actuator, and a housing removably fixed to the door. A locking bar is selectively engageable with the housing. A first cam member is operable to move the locking bar from an unlocked position wherein the locking bar is released from the housing and a locked position wherein the locking bar is fixedly coupled to the housing. A spindle is rotatably coupled to the inside actuator and selectively coupled to the outside actuator. A second cam member is coupled to the first cam member and to the spindle and operable to move the locking bar from the locked position to the unlocked position in response to rotation of the inside actuator from a neutral position to one of a first clockwise position and a second counterclockwise position.

Abstract: The present invention is directed toward a protector for a door latch mechanism. The protector comprises a shaft to which a removable handle is attached, a plate adapted to be fastened to a door, and a shroud extending from the plate and surrounding a portion of the shaft when the removable handle is removed. The shroud is adapted to receive a puck lock for engagement with the shaft when the removable handle is removed. The shroud is adapted to receive the removable handle for engagement with the shaft when the puck lock is removed. The removable handle is operable to rotate the shaft and effect operation of the latch mechanism between latched and unlatched positions. The shroud includes a slot and the removable handle includes a tab such that when the removable handle is rotated, the tab of the removable handle engages the slot of the shroud.

Abstract: A combined slide access and latch engagement for a door. A panel is in the door proximate a latch for the door, with the panel having a slide portion that is displaceable to permit access to the latch. A knob is located on the slide and has a grip protruding from one side to allow the slide to be slid to permit access to the latch or, using a latch strike extending from the slide, engage the latch to open the door. A spring is used to maintain the knob in an actuation orientation.

Abstract: The spring box contains a base piece, a front plate, a back plate, a rotational piece, and a torsion spring. The base piece and the front and back plates have aligned through holes. A radial gap is configured on the rim of the base piece. The rotational piece has a curved sliding element along a section of the circumference. The sliding element has a groove, a weight block configured at one end of the sliding element, and a notch at the other end. The rotation piece is placed in the through hole of the base piece. The two ends of the torsion spring are embedded in the gap and the notch. The rotational and base pieces are sandwiched between the front and back plates. Then, by the weight of the weight block and the resilience of the torsion spring, a door handle is restored to its default position after being turned.

Abstract: An anti-ligative ergonomic type door-knob primarily of the institutional type, essentially serving to defeat the effort of a temporarily mentally-depressed room occupant from succeeding in committing self-hanging via contrived ensnaring by which to secure a cord like hanging-noose. Generic-variant embodiments of my anti-ligative doorknob are set forth, including both a circular and semi-circular escutcheon-plate for I-shaped V-shaped Y-shaped X-shaped fin-levers, and also a non-finned hemispherical iteration. The novel critical minimum approximate 40-degree anti-ligative principle of my LIFESTAR™ doorknobs reliably prevents a person ensnaring any heretofore problematically hazardous to portion of the door-knob assembly, while my optionally cooperating door latchbolt is formed to a matching critical minimum approximate 40-degree anti-ligative tri-beveled latchbolt as well.

Abstract: In a handle-returning device of a cylinder lock assembly, a support base has an inner annular flange and an axial spring-retaining lug. A rotation driver has an inner tubular wall extending into the inner annular flange of the support base, and a spring driving element. A torsion spring is disposed around the inner annular flange and between the support base and the rotation driver, and has a spring leg abutting the spring-retaining lug and the spring driving element. A rotary plate abuts the support base opposite to the rotation driver, and has an engaging part engaging a tongue projecting from the rotation driver. A reinforced structure is thus provided to oppose high torsional stresses produced upon rotation of a lever handle.

Abstract: There is disclosed herein a suicide prevention door handle and shower handle wherein each is designed to eliminate any area or structure that could be used to hold a belt, piece of clothing or the like as an aid in committing suicide by hanging. In each case, the safety knob comprises a tapered rose member or faceplate along with a cylinder wedge assembly or handle.

Abstract: A tailgate outside handle assembly may include a housing installed in an outer panel of a tailgate, an actuator unit, a manipulating handle installed in the housing and having a manipulation portion in a front surface thereof, and a hinge shaft that may be coupled to a top end portion of a rear surface of the manipulation portion, wherein a bottom end portion of the manipulation portion may be engaged with the actuator unit and selectively rotated about the hinge shaft such that after the manipulation portion may be withdrawn to the outside of the housing by a driving force of the actuator unit when the tailgate may be to be opened, the manipulating handle works as a handle.

Abstract: A lock device comprising a lock mechanism configured to be mounted on a door, the lock mechanism including a locking member having extended and refracted positions relative to the door for releasably securing the door relative to an adjacent structure, and the lock mechanism including a pivoting member operably connected to the locking member such that pivotal movement of the pivoting member about an axis moves the locking member between the extended and retracted positions, and an assembly including a handle manually pivotable about the axis, and a clutch mechanism connecting the handle to the pivoting member, the clutch mechanism at all times transmitting a torque below a predetermined value from the handle to the pivoting member, and the clutch mechanism at all times allowing the handle to pivot relative to the pivoting member when the torque exceeds the predetermined value.

Abstract: An actuator for an electronic door lock includes a stationary first magnet assembly, a beam, and a second magnet assembly. The first magnet includes at least one magnet stationarily positioned within the electronic door lock. The beam is movable relative to the first magnet assembly to a first position and a second position. The second magnet assembly is connected to the beam and is configured to be magnetically repulsed away from the first magnet assembly. The repulsion of the second magnet assembly maintains the beam in either the first or second position until the beam is selectively actuated therefrom.

Abstract: A sensor assembly for generating a request to exit (REX) signal for a door lockset operable with a latch operator and a controller that can signal an alarm. In one embodiment, the sensor assembly includes a mounting member adapted to be in a fixed position in the door lockset, a rotatable member adapted to rotate in response to rotation of the latch operator, and a sensor mounted to the mounting member. The sensor is spaced from the rotatable member and is configured to detect rotation of the rotatable member. When the rotatable member is rotated corresponding to rotation of the latch operator, the sensor detects the rotation, and a switch in the sensor, which may be magnetic, is actuated, closing a circuit to send a REX signal to the controller. The sensor assembly may be associated with a chassis of the door lockset.

Abstract: A wireless bolt lock remote is disclosed. The wireless bolt lock remote includes a control circuit adapted for use with a bolt lock system and configured to detect a locked state and an unlocked state of a bolt lock, and upon detection of a change in state to wirelessly transfer a status to identity the detected state to an alarm system. The control circuit is wirelessly coupled to the alarm system for wireless communication. The wireless bolt lock remote includes a power source to supply power to the control circuit. Associated systems and methods for remote wireless security for bolt locks also are disclosed.

Abstract: A multistage lock has a stationary frame, an inner frame, an outer frame mounted between the stationary and inner frames, multiple stops mounted on the stationary and inner frames, two sliding panels mounted on the outer frame and a handle assembly connected to the sliding panels. Stopping protrusions of the stops selectively engage limiting protrusions on the sliding panels when the at least one handle is turned. Consequently, the inner and outer frames are selectively opened. The multistage lock has a simplified structure and allows people to decide whether a door panel (window) is open according to situations and weather outdoors.

Abstract: A switch engagement assembly includes a base component including a plurality of mating devices and a switch box configured to couple to the base component, the switch box including a plurality of complementary mating receptacles, each mating receptacle configured to receive a respective mating device. Also described herein is a vehicle arm rest including the switch engagement assembly.

Abstract: An outside handle assembly of a vehicle door includes an escutcheon disposed in the outer panel of the vehicle door, a handle body disposed at a vehicular outer side of the escutcheon, a first protection bracket disposed at the vehicular inner side of the escutcheon, the first protection bracket comprising an engaging hole configured to receive a key cylinder, and a second protection bracket disposed at the vehicular inner side of the escutcheon to cover a periphery of the key cylinder, wherein the second protection bracket is coupled to the inner panel of the vehicle door and comprises at least one support contacting the first protection bracket, and wherein the second protection bracket is arranged to receive an impact load exerted upon the first protection bracket toward the vehicular inner side.

Abstract: A lever latch lock assembly including: a. a lock housing mounted in the door including a lock bolt movable along a first axis, a spindle extending along a second axis generally perpendicular to the first axis, the spindle extending outward at each of the interior and exterior sides of the housing and terminating in opposite ends, and a transmission which converts rotation of the spindle to axial motion the lock bolt, b.

Abstract: A lock assembly for use with a latch movable from an extended position to a retracted position, and the lock assembly includes an interior assembly and an exterior assembly. The interior assembly includes an interior handle manually movable to retract the latch and a locking member manually operable such that the locking member is movable from an unlocked position to a locked position. The exterior assembly includes an exterior handle manually operable to retract the latch when the locking member is in the unlocked position and inoperable to retract the latch when the locking member is in the locked position. The exterior assembly further includes a biasing member that biases the locking member toward the unlocked position. When the locking member is in the locked position, movement of the interior handle to retract the latch causes the biasing member to move the locking member to the unlocked position.

Abstract: A device for actuating a lock mounted in a door includes a handle with a bearing extension at one end, which can be installed from the exterior of the door in a bracket mounted in the interior of the door. A two-part electrical control unit has one control unit located in the handle and a second control unit in the vehicle. Electrical wiring with two sections, which are connected to each other by an electrical coupling part and a mating coupling part, extends between the two parts of the control unit. A receptacle for the electrical coupling part is provided in the bearing extension of the handle. The mating coupling part at the end of one section of wiring projects out through the opening in the exterior panel of the door and is fitted into the coupling part of the handle before the handle is installed. When the handle is to be installed, a common structural unit is available, composed of the handle, the coupling part, and the mating coupling part.

Abstract: This invention relates to a cylindrical lock assembly and the combination of the cylindrical lock assembly and bolt assembly. The lock assembly includes a chassis housing an actuator that is rotatable about an axis xx to move a shuttle relative to the chassis. The shuttle operatively engages the bolt assembly to retract the latch bolt. The lock set also includes outer furniture which is adjustable in its position relative to the shuttle to accommodate doors of a range of thickness.

Abstract: A door expansion adjusting handle and latch set for mounting on a door. It includes a first handle positioned on a first side of a door having a thickness, a shaft having two ends with one end fixedly connected to the first handle, a second handle positioned on a second side of the door and connected to the other end of the shaft by a nut, the nut permitting the second handle and shaft to rotate relative to each other but preventing the second handle from being removed from the shaft, a latch that is operated by rotating the first handle and/or the second handle, and a coil spring that is interposed between the fixing member and the second handle to bias the first handle and the second handle towards or away from each other. If the thickness of the door increases or decrease, the coil spring will permit the second handle to move closer or further from to the fixing member to accommodate the increase in door thickness.

Abstract: A cylindrical lock includes a retractor mounted between inner and outer operational devices and operably connected to a latch. The retractor includes an upper surface having an upper recess. The retractor further includes a lower surface having a lower recess. Two upper compartments are defined in two sidewalls of the upper recess and extend to two lateral surfaces of the retractor, forming two upper tongues. Two lower compartments are defined in two sidewalls of the lower recess and extend to the lateral surfaces of the retractor, forming two lower tongues. First and second rollers are rotatably received in the upper and lower recesses, respectively. A size of an opening of each of the upper and lower compartments is reduced by pressing a distal end of each upper tongue downward and by pressing a distal end of each lower tongue upward, retaining the first and second rollers in place.

Abstract: A device for providing a lever attachment to round doorknobs having a flexible cylindrical part that adapts to the majority of doorknobs of different diameters, thicknesses and profiles. During the screw tightening the compressible elastomeric material sandwiched between doorknob and cylindrical part of the attachment increases the interface contact surface to take the shape of the doorknob profile. The elastomeric insert has a high coefficient of friction. It prevents slipping of the attachment after tightening.