Abstract: A hinge for use in, e.g., folding tables, folding chairs, or folding shelves that can be locked in at least one position. According to an aspect of the invention, the hinge is locked in the position that would correspond to the open or deployed state of the piece of furniture of which it is a part.

Abstract: The invention relates to an actuating drive, comprising at least one actuating arm for moving a movable furniture part and a locking device for blocking the motion of the actuating arm, wherein the locking device permits the motion of the actuating arm only after the movable furniture part has been mounted on the actuating arm, wherein the locking device is released by the mounting of the movable furniture part on the actuating arm.

Abstract: A rotational hinge including a first casing linkage; a second casing linkage; a hinge linkage; and a synchronization linkage, wherein the synchronization linkage is coupled to the first casing linkage and the second casing linkage to synchronize a fixed rotational axis and a moving rotational axis that provides one or more degrees of rotation.

Abstract: A simplified hinge is mounted between a cover and a base of a portable electronic device. The simplified hinge has a pintle connected to the base, a main linking sheet connected to the cover and a resilient washer and a positioning washer abutting each other and mounted around the pintle. The resilient washer has a resilient segment protruding toward one side. The positioning washer has corresponding positioning protrusion or detent. With the elasticity of the resilient segment, the resilient washer generates torsion when rotating between the positioning washer and the pintle. Furthermore, the positioning protrusion or detent selectively engages with the resilient segment to provide positioning function. Therefore, the resilient washer provides not only the torsion but also the positioning function so that the simplified hinge has a simplified structure and its volume is effectively reduced.

Abstract: A hinge mechanism includes two pivot shafts substantially parallel to each other, two main gears non-rotatably respectively sleeved on the pivot shafts, a transmission assembly positioned between the two pivot shafts to transmit a torque of one of the two main gears to the other in a reverse direction, and a connecting member defining two shaft holes. The pivot shafts are respectively rotatably received in the shaft holes. Two contact assemblies are respectively mounted on the pivot shafts abutting the connecting member. One of the connecting member and each main gear forms at least one detent, and the other defines at least one recess correspondingly. The at least one detent is received in the at least one recess.

Abstract: A hinge assembly including a first hinge leaf hingedly connected to a second hinge leaf by a hinge pin (14), the hinge pin (14) being rotatably mounted in one hinge leaf (12) non-rotatably mounted in the other hinge leaf (11), and a check mechanism (30) operably connected to the hinge pin (14) and said one hinge leaf (12) to releasably hold the first and second hinge leaves (11, 12) at at least one angular position about the hinge axis, the check mechanism (30) including check means (32) resiliently biased in a radial direction relative to the hinge axis and into contact with an annular cam track (34) formed on a reaction member (33), the check means (32) being driven along said annular cam (34) by relative rotation between said first an second hinge leafs (11, 12), the cam track (34) including at desired locations therealong one or more check formations (38) which cooperate with said check means (32) to releasably retain the first and second hinge leafs (11, 12) at a desired angular position relative to one

Abstract: The device for decelerating at least the closing rotation of a furniture hinge, comprises a container housing a first rotating friction element in contact at a first friction surface with the bottom of the container, a second fixed friction element overlapped to the first rotating friction element with which it is in contact at a second friction surface, and at least a third rotating friction element overlapped to the second fixed friction element with which it is in contact with at least a third friction surface, constraint means between the first friction element and the third friction element, a slider movable along a direction of translation at least during closing rotation and kinematic means for conversion of the translation of the slider into a rotation of the first and third friction element in such a manner as to create a dragging friction at the first, second and third friction surface.

Abstract: A hinge includes a pivot shaft, and a knuckle member unit formed of a stack of knuckle members and pivotally coupled to the pivot shaft. Each knuckle member has a flat mounting base and a shackle that has its one end extended from the flat mounting base and pivotally coupled to the pivot shaft and its other end spaced from the flat mounting base by a gap. The knuckle members are arranged in a stack in such a manner that one of each two adjacent knuckle members has the gap thereof disposed at one lateral side and the other of each two adjacent knuckle members has the gap thereof disposed at an opposing lateral side.

Abstract: A hinge joint assembly including a first body having a first circular serrated edge located around a first central axis; a second body having a second circular serrated edge located around a second central axis, said second circular serrated edge corresponding with and adapted to engage with the first circular serrated edge; an axle rod, extending through the first central axis and the second central axis, adapted to enable the first and second bodies to rotate relative to one another; biasing means, positioned between the first body and the second body, for biasing said first and second bodies away from each other along the axle rod; movement limiting means for preventing the second body from being separated from the first body beyond a pre-determined distance; and a cam element, rotatable about the axle rod, adapted to move the second body relative to the first body, from a joint locked position to a joint unlocked position.

Abstract: A furniture hinge, comprising a fitting part, a hinge cup that is articulated thereto for fastening to furniture parts, and a cushioning apparatus for cushioning a relative movement between the fitting part and the hinge cup, wherein the cushioning apparatus is disposed in or on the hinge cup, wherein the cushioning apparatus comprises a housing having first fastening means, and second fastening means are disposed on the hinge cup, wherein the housing of the cushioning apparatus can be inserted from above into the hinge cup and in the installed position is disposed substantially completely inside the hinge cup, wherein the housing of the cushioning apparatus and the hinge cup can be connected to each other in said installed position by the first and second fastening means.

Abstract: A hinge mechanism includes two pivoting shafts substantially parallel to each other, two main gears non-rotatably sleeved on the pivoting shafts, respectively. The hinge mechanism further includes two transmission gears positioned between the main gears, and two brackets sleeved on the pivoting shafts, respectively. Each transmission gear meshes with the other transmission gear and one main gear. Each pivoting shaft includes a flange which defines two locking portions, and each bracket forms two latching portions engaging with the locking portions of each pivoting shaft. The locking portions and the latching portions are selected from the structures of groove and hook.

Abstract: A hinge assembly with two pivot axes is provided for a folding frame. One pivot axis, a working pivot axis, allows the outer wing frame to rotate while in operation to follow the ground contours by rotating relative to the adjacent frame section without creating any interference between adjacent tools mounted to the frame sections. The second pivot axis is a folding pivot axis above the frame and about which the outer wing frame rotates to fold the outer wing into the transport position. This hinge assembly when used on a five section implement frame allows the outer wing frame to both follow the ground contour and to fold into an acceptable transport position.

Abstract: A hinge assembly having a hollow clutch is arranged to pivotally couple a portable computer base portion to a portable computer lid portion. The hinge assembly includes at least a hollow cylindrical portion that includes an annular outer region and a central bore region, the central bore region suitably arranged to provide support for electrical conductors between the base and lid portions. The hinge assembly also includes a plurality of fastening components that couple the hollow clutch to the base portion and the lid portion of the portable computer, with at least one of the fastening regions being integrally formed with the hollow cylindrical portion such that space, size and part count are minimized. The integrally formed fastening region(s) can be flat with holes dispersed therethrough for screws, bolts or the like. The central bore can also support a heat transfer element and can also serve as a lubricant reservoir.

Abstract: The embodiment includes a hinge, a pivot shaft, a cam, and a cam follower. The pivot shaft includes an engaging portion bound by two curved surfaces and two non-rotatable surfaces. The cam is non-rotatably sleeved on the engaging portion of the pivot shaft and defines a noncircular hole and two cutouts. The noncircular hole is bound by two first contact surfaces and two second contact surfaces. The second contact surfaces are tangent to the curved surfaces of the engaging portion of the pivot shaft. The cam follower is rotatably sleeved on the engaging portion of the pivot shaft and resists the cam. The cam follower forms two peaks engaging with the cutouts in the cam.

Abstract: A coupling mechanism includes a pivot assembly and a lifting assembly. The pivot assembly includes a first bracket, a pivot pin, a second bracket, and a cam piece. The second bracket is rotatably mounted to the first bracket via the pivot pin and has a valley portion recessed from one surface thereof. The cam piece is mounted to the pivot pin for holding the second bracket at any angle. The cam piece has a peak portion formed on one surface thereof and received in the valley portion of the second bracket at a closed position. The lifting assembly is adjustably assembled to the second bracket such that the lifting assembly is pivotally assembled with the first bracket.

Abstract: A hinge assembly has a pintle, a rotating bracket, a sliding bracket, a mounting bracket, a compression assembly and an elastic member. The rotating bracket is mounted rotatably around the shaft and has a latching portion. The sliding bracket is attached securely to the pintle and has a track. The mounting bracket and a latching arm. The latching arm selectively presses against the latching portion to hold the hinge closed. The compression assembly is mounted around and expands when the pintle is rotated to close. The elastic member is compressed by expansion of the compression assembly so automatically rotates the pintle to open. Therefore, with the hinge mounted in an electronic device, when the latching portion is slid out of the latching arm, the hinge is forced to open by the elastic member and compression assembly so a cover pops up and is opened easily.

Abstract: Rod segments can be adjoined with a simple hinge. Various embodiments of hinges include locking, non-locking, spring biased open or closed, and aligned rod segments or non-aligned rod segments.

Abstract: The invention is a hinge for a vehicle door that is movable between a closed and a fully open position relative to a vehicle body. The hinge includes a mounting bracket, operable to be secured to the vehicle body. At least one link is pivotally mounted along a fixed axis to the mounting bracket at a first end and operable to pivot a second end of the at least one link between a first and second position. A door bracket is operable to be secured to the vehicle door, and pivotally mounted along a movable axis to the second end of the at least one link. The vehicle door is constrained by the vehicle body from pivoting around the movable axis when the second end of the at least one link is in the first position, and is operable to pivot around the movable axis when the at least one link is in the second position. A latch is provided on the hinge, obviating the need for a separate door latch.

Abstract: A hinge device increases an open angle of a second member relative to a first member without enlarging the hinge device. A first pulley is fixed to a first mounting member mounted on the first member. A second pulley is fixed to a second mounting member mounted on the second member. A timing belt runs between the first and second pulleys. One end of a connecting member that connects the first mounting member to the second connecting member connects rotatably to an axis part of the first mounting member, with the opposite end connected rotatably to an axis part of the second mounting member. Pins to that abut to the outside of the timing belt are provided such that the width between one side and the opposite side of the timing belt becomes smaller than the diameter of at least one of the first pulley and the second pulley.

Abstract: A hinge is mounted between a cover and a base between an electronic device and has a supporting bracket, a rotating bracket, a mounting bracket and a pintle. The supporting bracket is connected to the base and the rotating bracket is connected to the cover. The mounting bracket is attached to the supporting bracket and has a positioning wing and two sleeves. The pintle is attached to the rotating bracket, is mounted through the mounting bracket and has a flat wall. The flat wall of the pintle selectively abuts against the positioning wing of the mounting bracket to hold the cover at desired position. The abrasion between the sleeves and the pintle balances torque.

Abstract: A hinge includes a fixing member, a shaft unrotatably fixed to the fixing member, two rotating members, two shaft sleeves, and a connecting member. The shaft includes a shaft rod, with the two rotating members and two shaft sleeves rotatably mounted to the shaft rod. The shaft sleeves are unrotatably fixed to the rotating members, correspondingly, and located between the rotating members. The connecting member is fixed to the rotating members.

Abstract: Furniture fitting with a damper, wherein the damper has a space for accommodating a damping medium, wherein the space is filled substantially completely with a multiplicity of solid particles, and wherein the interspaces remaining between the solid particles are filled substantially completely by a liquid.

Abstract: Motorized split-hinge device for a very heavy double door, designed to be motorized and consisting of at least one flap or panel (1) that is mounted to pivot, around an essentially vertical axis of rotation, on a frame (2), comprising a stationary split-hinge part (3) that is integral with said frame (2) and a movable split-hinge part (4) that is integral with said flap (1) and mounted in rotation relative to said stationary split-hinge part (3) around a pivoting shaft.

Abstract: A flat panel display (FPD) support has a panel bracket being attached to an FPD, two hinge assemblies being mounted on the panel bracket and an U-shaped supporting bracket being attached to the hinge assemblies. The supporting bracket supports the FPD to allow the FPD to stand on a plane and can pivot to adjust an angle of the FPD relative to the plane with the hinge assemblies. The FPD with the FPD support shows a light, simple and portable shape, can be conveniently packaged for sell or moving and will not occupy life space while using.

Abstract: A swivel-hinge assembly includes a main plate, a knuckle on the main plate, a first pivot shaft rotatably engaged in the knuckle, at least one end of the first pivot shaft exposed out of the knuckle and a peg positioned on the end of the first pivot shaft exposed out of the knuckle. The peg includes a limiting portion protruding out of the first pivot shaft and abutting an edge of the knuckle, wherein when the first pivot shaft is rotated and reaches a predetermined position the limiting portion of the peg abuts the main plate thereby preventing further rotation of the first pivot shaft.

Abstract: A hinge includes a shaft, a rotation bracket rotatably mounted to the shaft, an interference element fixedly mounted to the shaft, a biasing member mounted to the shaft, and a fastener fixed to a distal end of the shaft. The rotation bracket includes a combination portion engaging and capable of rotating relative to the interference element. The interference includes a first end surface located on a first cone angling down from a center towards a side of the first end surface, the combination portion includes a second end surface located on a second cone angling down from a side towards a center of the second end surface, to engage the first end surface of the interference element.

Abstract: A hinge assembly has a pintle, a torque assembly and a resistance assembly. The pintle has a head formed on the pintle. The torque assembly is mounted on the pintle at a first side of the head to provide a force to automatically open the cover relative to the body to a first angle. The resistance assembly is mounted on the pintle at a second side of the head to provide a frictional force to hold the cover at a second angle relative to the body when the cover is closed relative to the body. Accordingly, the cover can be pivoted open relative to the body automatically with the torque provided by the torque assembly.

Abstract: A furniture hinge with a door-leaf attachment part (1) for fastening to a door leaf (36) and a carcass attachment part (2) connected to the hinge so that it can pivot for fastening to a furniture carcass (37). At least one functional unit (3) influences a pivoting movement between the door-leaf attachment part (1) and the carcass attachment part (2). The carcass attachment part (2) has a first component (4) and at least one second component (5), and the first component (4) is supported on the second component (5) at least by at least one adjustment device (6), and a relative position of the first component (4) to the second component (5) can be adjusted with the adjustment device (6). The functional unit (3) has a first functional element (8) and at least one second functional element (9), the first functional element (8) is supported so that it can move relative to the second functional element (9), and the first functional element (8) is fastened to or supported on the adjustment device (6).

Abstract: The present invention provides an opening-and-closing mechanism capable of reducing a falling momentum due to gravitational force of a lid that is opened and closed past the top in the perpendicular direction and easily raising the lid against the gravitational force.

Abstract: Furniture hinge with alternative damping and/or braking device with respect to those existing and able to guarantee a better functional efficiency during closing and opening operation of the doors, or other parts of furniture, even after long periods of inactivity of the same device. The better efficiency of such hinge is also obtained by increasing the friction surfaces with a viscous means present in suitable areas of the hinge and by allowing the regulation of the angular velocity trend of a circular shaped element, for example a disk, that acts as a braking element in contact with the viscous means.

Abstract: A hinge assembly (20) including a first magnetic member (21) and a second magnetic member (22) is described. The polarities of opposing end surfaces of the first magnetic member and the second member are different. The second magnetic member is configured for rotating relative to the first magnetic member to generate a magnetic moment. In addition, an exemplary portable electronic device (100) equipped with the hinge assembly is also described.

Abstract: A lamp has multiple arms and multiple hinges mounted between two adjacent arms. The hinge has a stationary leaf, multiple pivot assemblies being mounted in the stationary leaf and multiple brackets being respectively connected to the pivot assemblies and two corresponding brackets are attached to each arm. Each pivot assembly has a shaft and a locking nut being mounted on the shaft and selectively engaging a locking hole of each bracket. Since the locking nuts selectively engage the locking holes of the brackets, an angle between the adjacent arms can be adjusted and fixed. Further, two adjacent arms do not influence each other's position, which is convenient for adjusting.

Abstract: A hinge assembly includes an axel and a conversion adapter including a hollow column and a hollow protrusion pole. The hollow column communicates with the hollow protrusion pole. A pivoting element is rotatably connected to the conversion adapter, and includes a first side plate and a connection plate. A positioning pole is protruded from the first side plate. A protrusion ring and a guide pole are protruded from the connection plate. A rotation element is rotatably placed over the axel. The protrusion ring is rotatably placed over the protrusion pole. The rotation element is rotatably placed over the guide pole.

Abstract: A hinge comprises a shaft, a bracket, a first interference member, a second interference member, and a sleeve member set around and in tight contact with the shaft. A first end of the sleeve member is fixed to the bracket, and a second end of the sleeve member is fixed to the second interference member. The shaft rotates in the sleeve member to rub against the inner surface of the sleeve member to supply friction.

Abstract: A hinge includes a first connecting member, a shaft fixed to the first connecting member, a second connecting member rotatably mounted to the shaft, a first interfering member fixed to the second connecting member, a first stopping member having a resisting surface, a second interfering member having a stop surface, and a fastener fixed to the shaft. A resisting block extends from the second connecting member. A first depressed portion and a second depressed portion are defined in the first interfering member, and a withstanding protrusion protrudes from the first interfering member. A first protrusion and a second protrusion extend from the second interfering member, capable of engaging in the first and second depressed portions. When the second connecting member is rotated relative to the first connecting member to a predetermined degree, the resisting block and the withstanding protrusion resist against the resisting surface and the stopping surface, respectively.

Abstract: A portable electronic device with an inverted-type hinge has a cover connected to a stationary bracket, a side shell connected to a tilting assembly, a cover connected to an inverting assembly and a sliding assembly being eccentric to a tilting shaft. With cooperation between the inverting assembly and the tilting assembly, the cover may be inverted to reveal a display that leans against the base. Therefore, the user easily touches the display without pivoting the cover. Furthermore, the sliding assembly lifts the cover while the cover is opened relative to the base to prevent the cover from impacting the base.

Abstract: Provided is a portable terminal including a first housing, a second housing, and a hinge apparatus rotatably coupling the first housing and the second housing. The hinge apparatus includes a hinge housing fixed to the first housing, a hinge member fixed to the second housing and coupled to the hinge housing, the hinge member rotating around a hinge axis which extends perpendicular to a surface of the first housing, an interference protrusion provided on one of the hinge housing and the hinge member, and a stopper groove formed in the other of the hinge housing and the hinge member wherein the hinge member rotates around the hinge axis while being spaced apart from the hinge housing.

Abstract: A hinge includes a first connecting member, a shaft, a second connecting member, and a shaft sleeve unrotatably fixed to the second connecting member. The shaft is unrotatably fixed to the first connecting member, and includes a shaft body having a flat surface formed on a circumference of the shaft body. The second connecting member is rotatably mounted to the shaft body. The shaft sleeve defines a receiving hole for the shaft body rotatably passing therethrough. The shaft sleeve includes a flat resisting block resisting against the flat surface. When the second connecting member is rotated relative to the first connecting member, the resisting block is deformed, and slide onto the circumference of the shaft body from the flat surface.

Abstract: The disclosed subject matter provides hinging apparatuses, structures, and systems for folding support furniture systems, and methods of assembly therefor. The disclosed subject matter advantageously provides structurally rigid connections between component parts of support furniture systems, while allowing for durable support furniture. In various non-limiting embodiments, the provided hinging apparatuses allow for a folding support furniture system to be folded up for convenient and efficient storage and ease of transport. With the hinges extended to their designed extension point, and when fully assembled, the hinging apparatuses, in conjunction with the disclosed locking mechanisms provide the structural rigidity and load bearing capability necessary to support current and future home entertainment system weight loads, as well as providing numerous advantages for other support furniture markets.

Abstract: A hinge includes a shaft, a first connecting, a number of elastic rings, a fastener, a resilient member, and a second connecting member. The shaft includes a shaft body defining a thread portion for engaging with the fastener. Two separate fixing portions extend from a distal end of the shaft body, and distal ends of the fixing portions are riveted to the second connecting member. The first connecting member and the number of elastic rings are rotatably mounted to the shaft body. The resilient member is fixed to the shaft body, and located between the second connecting member and the fastener. When the fastener is adjusted along the shaft, the resilient member is deformed to resist against the fastener and the second connecting member.

Abstract: A system for selectively locating a door within a frame may include a frame, a door selectively located within the frame and a hinge. The hinge has a frame attachment portion and a door attachment portion. The portions are pivotally connected to one another via a pin. The frame attachment portion and door attachment portion cooperate to cause an outside surface of the door to be flush with an outside surface of the frame when the door is substantially within the frame. The frame attachment portion has a roller flange extending substantially transverse to the frame attachment portion that selectively engages with a roller on the door attachment portion.

Abstract: A hinge assembly includes a first pivot unit including a shaft, a bracket, an engaging member, a locking member, and an elastic member. The shaft has a non-circular sleeve portion. The bracket is rotatably sleeved on the shaft. The engaging member has a sleeving hole with a shape substantially corresponding to a cross-section of the sleeve portion of the shaft. The locking member has a sleeving hole with a shape substantially corresponding to a cross-section of the sleeve portion of the shaft. The locking member is non-rotatably latched to the engaging member. The elastic member is sleeved on the shaft to resist the components on the shaft.

Abstract: In accordance with an example embodiment of the present invention, an apparatus comprises an assembly adapted to rotatably couple a first housing and a second housing, said assembly adapted to rotate said first housing and said second housing with respect to each other between a closed configuration and at least one open configuration, said assembly comprising an inner ring coupled with said first housing and an outer ring coupled with said second housing, said inner ring slidably coupled with said outer ring in a circumferential direction, said outer ring movable through a first opening in said first housing, said inner ring movable through a second opening in said second housing when said first housing and said second housing rotate with respect to each other.

Abstract: An arrangement in a screen for substantially continuous adjustability and parking of the screen in a desired position, including an upper hinge and a lower hinge. The lower hinge includes a conical element for achieving a braking effect against pivoting of the parts in relation to one another.

Abstract: A level assembly hood hinge unit includes a side outer panel having a space between an upper panel and a lower panel in which a hood hinge may be disposed, and a stud bolt provided on the lower panel, a hinge bracket which may be configured for assembly engagement while it laterally moves along the lower panel towards the space of the side outer panel, and which may be provided with an assembly portion, positioned in the space of the side outer panel, at an upper portion of the hinge bracket and an insertion groove at a rear portion of the hinge bracket, in which the stud bolt may be inserted for stopping movement of the hinge bracket, and/or a hinge arm which may be to be assembled with the hinge bracket in the assembly portion by a hinge pin, and which may be provided with a hood combining portion to which a hood panel may be mounted at an end portion thereof.

Abstract: A hinge includes a rack, a shaft, a bracket, a number of elements, and a fastener. The shaft includes a rectangular-shaped post and a rectangular-shaped engaging portion secured to the rack. The bracket defines a pivot hole for rotatably receiving the post of the shaft. The number of elements is unrotatably arranged around the rectangular-shaped post of the shaft. The fastener is screwed on a distal end of the post to limit the bracket and the number of elements on the shaft.

Abstract: A hinge includes a first shaft, a second shaft, a first bracket, and a second bracket. The first shaft is perpendicularly mounted to the second shaft. The second shaft includes an end face, which defines a recess and two positioning holes. The recess defines two barrier sides. The first bracket is pivotally mounted to the first shaft. The second bracket is pivotally mounted to the second shaft. The second bracket includes a guiding piece which slides in the recess when the second bracket rotates about the second shaft. The second bracket is rotatable about the second shaft between a first position and a second position. In the first position, the guiding piece abuts one barrier side, and the protrusion is located in one positioning hole. In the second position, the guiding piece abuts the other barrier side, and the protrusion is located in the other positioning hole.

Abstract: A dual swing hinge structure includes two fixed base frames each having a receiving groove and a pivot hole extending across the receiving groove, a first bracket, which has two coupling arms respectively inserted into the receiving grooves of the base frame and pivotally coupled to the pivot holes of the base frames with pivot pins and a mounting plate fastened to a first movable member, a second bracket, which has two coupling arms respectively pivotally coupled to the pivot pins that pivotally secure the first bracket to the base frames and a mounting plate fastened to a second movable member, and two first retaining members and two second retaining members respectively affixed to the coupling arms of the first bracket and the coupling arms of the second bracket and respectively coupled to the pivot pins for imparting a different torque force to the pivot pins such that the first bracket is immovable when the second bracket is biased relative to the base frames, and the second bracket is moved with the fir

Abstract: Provided is an opening-and-closing mechanism that can be latched at a predetermined opening angle, wherein the latching can be disengaged with a small force in the opening direction whereas the latching is gradually disengaged in the closing direction.

Abstract: A hinge structure with locking feature is connected to a first body of an electronic device through a support frame. A pivot portion of the hinge structure is connected to a second body of the electronic device and includes a rotating shaft connected to the support frame, such that the first body is capable of rotating relative to the second body. Moreover, a lock receptacle is disposed on the support frame, and is engaged with a matching lock unit. Therefore, the electronic device is secured to a fixed position, which thus achieves an anti-theft function.