Abstract: This disclosure provides a supporting structure module and an electronic device using the same. The supporting structure module in the invention is used in the electronic device. The electronic device includes a first casing, a hinge, and a second casing rotatable relative to the first casing via the hinge. The supporting structure module includes a first supporting structure, and the first supporting structure includes a first bracket and a first hinge cover. The first bracket is fixed to and exposed from the first casing. The first hinge cover is connected with the first bracket by integral forming, and the first hinge cover is exposed from the first casing and covers a part of the hinge.

Abstract: A checker-equipped door hinge device for use in a vehicle includes a check force generating mechanism having a central shaft fixed to a female bracket, a cylinder block fixed to a male bracket and having a cylinder portion, a piston slidably fitted into the cylinder portion, a detent roller supported by the piston, a check spring for urging the piston, and a detent groove provided on an outer peripheral face of the central shaft and with which the detent roller is engaged by urging force of the check spring. The male bracket includes male arm portions for sandwiching the cylinder block inside female arm portions, and a male base portion connected to the male arm portions. The male arm portion is fixedly secured to the cylinder block, and opposite end parts of the central shaft extending through the male arm portion are fixedly secured to the female arm portion.

Abstract: A portable terminal is provided, in which a hinge device provides a pair of hinge axes extended in parallel, a pair of folding cases are engaged with the hinge device and rotate upon the hinge axes, respectively, and sliding housings are installed in the respective folding cases. The folding cases rotate in a folding direction or in an unfolding direction via the hinge device, and when the folding cases rotate, the sliding housings slide on the folding cases. When the sliding housings are opened at 180° with respect to each other, one end of the sliding housing is in a close relationship with one end of another sliding housing.

Abstract: A hinge is mounted between a cover and a body of an electronic device and has an eccentric sleeve and a resisting assembly abutting against each other. When the cover is pivoted, the eccentric sleeve is rotated as well. Because the eccentric sleeve has sectors with varied radiuses, the resisting assembly is compressed to conduct various resisting forces when the eccentric sleeve is rotated. When the cover is opened to a normal visual angle, the hinge provides a constant largest torque. Therefore, the cover is held at the normal visual angle even though the user hits the touch panel on the cover.

Abstract: An embodiment of a hinge assembly includes a main body defining a shaft hole, a connecting shaft including an inserting end rotatably received in the shaft hole, and an expansion member forming a tapered portion and axially positioned in the shaft hole. An end surface of the inserting end toward the expansion member defines a tapered hole corresponding to the tapered portion, and the tapered portion is pressed into the tapered hole to expand the inserting end to resist the inner surface of the shaft hole, thus rotatably connecting the connecting shaft to the main body.

Abstract: A multi-directional hinge mechanism includes a pair of first rotating assemblies, a second rotating assembly and a connecting member, and is capable of functioning on two perpendicularly-opposed axes.

Abstract: A tilt control for a tiltable mount and a mount including a tilt control are provided. The mount has first and second brackets mounted for rotation or tilting, such as about a shaft. The second bracket might be a monitor mount tiltable relative to an arm bracket. The tilt control includes a friction brake and an over-running clutch configured to disengage the friction brake to permit upward rotation or tilting, but engage the friction brake for controlling the downward rotation or tilting. The friction brake is engaged by the over-running clutch to control downward tilting. The friction brake generates a counter-acting force to retain a mounted device such as a video monitor and/or keyboard in fixed position against drooping, but to permit downward tilting upon application by a user of an adjustment force.

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 pivoting detent joint with selective positional engagement for a vehicle mirror assembly. The detent joint includes an arm detent ring defined by a continuous circular arrangement of a combination of arm locking teeth and alignment teeth. A base detent ring has a complementary arrangement to the arm detent ring and is defined by a continuous circular arrangement of a combination of base locking teeth and alignment channels. The arm locking teeth of the arm detent ring engage the base locking teeth of the base detent ring in a releasable interlocking engagement only when all of the alignment teeth are received into a complementary alignment channel so that positioning of a support arm relative to a carrier base is limited to specifically define orientations.

Abstract: A vehicle interior trim component hinge assembly includes a rotatable component, and a shaft disposed through the rotatable component. The hinge assembly also includes a first friction disk rotationally coupled to the shaft, and a second friction disk rotationally coupled to the rotatable component. The hinge assembly further includes a biasing member configured to urge the first and second friction disks toward one another to establish a friction force that provides resistance to rotation of the rotatable component about the shaft.

Abstract: A location stabilizing structure for enclosure-type rotary shaft includes a fitting member having an enclosure section and a shaft member having a shaft rod tightly enclosed in the enclosure section. The enclosure section has multiple inner adaptive faces. The shaft rod has multiple outer adaptive faces in adaptation to the inner adaptive faces for matching the inner adaptive faces. The number of matching inner adaptive faces and outer adaptive faces is varied with the change of angular position between the enclosure section and the shaft rod. The locating/stabilizing structure is designed with different numbers of matching inner and outer adaptive faces indifferent angular positions to provide different locating force. Indifferent angular positions, the unmatching inner adaptive faces and outer adaptive faces interfere with each other to provide radial elastic compressing force to securely locate the rotary shaft and avoid loosening or swinging.

Abstract: A deceleration device comprises a cylindrical container (14) housing at least one friction disc (16) against at least an internal wall of the cylindrical container (14), and a movable cursor (18), actuated by an external element, for the actuation of the friction disc (16), the friction disc (16) being bound to the cylindrical container (14) through constraint means which permit a roto-translational motion in order to acquire a further sliding contact surface in addition to the internal wall of the cylindrical container (14) at the end of the initial translation phase of the cursor (18) in which the friction disc (16) is subjected to a mainly or completely translational motion.

Abstract: A self-lock hinge is mounted between a cover and a base of an electronic device and has a resilient sleeve and a pintle. The resilient sleeve has a tubular body with a positioning protrusion formed on an inside wall thereof. The pintle has a rod. The rod is mounted rotatably through the tubular body and has a flat wall selectively abutting the positioning protrusion. When the cover is closed relative to the base, the flat wall of the rod abuts the positioning protrusion to lock the cover. Therefore, the cover is self-locked when closing.

Abstract: An attempt is made to miniaturize and reduce a thickness of a folding type portable terminal. There are provided a turning shaft member 51 having a shaft section 58; a friction member 54; an urging member 55; and a bearing member 52 including an accommodation section 63 for accommodating the friction member 54 and the urging member 55 and an insertion hole 62 which is in mutual communication with the accommodation section 63 and which retains the shaft section 58 in a turnable manner. The urging member 55 urges the friction member 54 when predetermined deflection is imparted to the urging member 55. The urged friction member 54 contacts an outer periphery of the shaft section 58 and also urges the outer periphery of the shaft section 58. The shaft section 58 of the turning shaft member 51 is configured so as to turn while generating sliding friction against the friction member 54 and the bearing member 52.

Abstract: A hinge for a door, flap or similar pivotal wings of a motor vehicle is provided. The hinge includes a column-side hinge part and a door-side hinge part, which can be pivoted about a hinge pillar relative to each other, and with an integrated door retaining device, which includes a retaining element arranged on the side of the one hinge part, which cooperates with a retaining contour on the side of the other hinge part. The retaining element is formed as clamp element cooperating with a clamping surface of the hinge pillar, the clamping force of which can be adjusted by means of a transmission element as a function of the retaining contour.

Abstract: A portable computer is provided that has a housing. Upper and lower portions of the housing may be joined using a hinge. A clutch mechanism may be associated with the hinge. The clutch mechanism may exhibit asymmetrical friction during opening and closing of the portable computer housing portions. Additional closing force may help to prevent the computer from having a lid that is too easy to close, without overwhelming the clutch with unnecessary friction. The clutch may have a clutch spring that is attached to a clutch shaft using a slot in the shaft. A lobe may be provided in the spring in the vicinity of the slot. A protective cap may be provided over the tip of the shaft to prevent damage to nearby wires. A friction band in the clutch may be used to directly engage an end of the spring.

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 for pivotably coupling a cover section and a body section comprise a first coupling element, a second coupling element including a first latching block and a second latching block spaced from the first latching block, the first latching block and the second latching block being configured for latching with the cover section, and an elastic element. One end of an elastic element is fixed to the first coupling element, another end of the elastic element is fixed to the second coupling element.

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 used in a display apparatus is provided. The display apparatus includes a display unit, and a seat. The hinge is used for connected the display unit to the seat. The hinge includes a pivot rod, a first connection member, a second connection member, and a support member. The first connection member is fixed to the display unit and further connected to the pivot rod. The second connection member is connected to the support member. The second connection member is fixed to the support member and further pivotally connected to the pivot rod. The support member is fix to the seat and further pivotally connected to the pivot rod.

Abstract: An inverted U-shaped frame includes a coupling at either end of the inverted U-shaped frame for pivotably securing to front corners of an electronic device (e.g., laptop or computer keyboard); a micro-projector pivotably mounted on a transverse part of the inverted U-shaped frame; and a camera pivotably mounted on the transverse part of the inverted U-shaped frame besides the micro-projector.

Abstract: There is disclosed herein a hinge assembly comprising a mandrel having a longitudinal axis. A first arm is rotationally fixed relative to the mandrel and extends from one end of the mandrel generally transverse to the longitudinal axis. A second arm is rotatably connected relative to the mandrel about the longitudinal axis and extends from the opposite end of the mandrel generally transverse to the longitudinal axis. A coil spring is sleeved over and snugly surrounds the mandrel. Relative rotation of the first arm and the second arm in an opposite direction tightens the spring around the mandrel. Tightening of the spring generates resistance to relative rotation of the first arm and the second arm.

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 mechanism for a display device is arranged such that a cylindrical holder 14 which encloses the outer peripheral portion of a shaft 13 projecting laterally from a display 3 has a protrusion 19 provided on the internal surface thereof, and also the shaft 13 has provided on the outer peripheral surface thereof a plurality of flat faces 20, 21, and 22 for engaging with the protrusion 19.

Abstract: A rotating mechanism for an electronic device has a stationary seat with a limiting recess, a limiting ring mounted through the stationary seat with inner and outer limits, a shaft mounted through the stationary seat and the limiting ring with a limiting protrusion. With the limiting protrusion pushing the inner limit and the outer limit sliding in the limiting recess, the shaft achieves two stages of rotation to enhance the rotating angle in both directions. Moreover, with the adjusting of the sizes of the components, the rotating mechanism may provide rotating angle by 360 to 700 degrees.

Abstract: A hinge has a pintle, a spacer assembly, a stationary bracket and a rotating bracket. The pintle is mounted through the spacer assembly and is connected to the stationary and rotating brackets. The spacer assembly has multiple spacers stacked with each other. Each spacer has a ring segment and a bearing segment. The ring segment is mounted around the pintle. The bearing segment has an absorbing space to absorb the stress acting on the ring segment. Therefore, the spacer sustains less stress to prevent breakage easily and a lifespan of the spacer is extended. Therefore, the hinge has a longer lifespan.

Abstract: A hinge includes a pivot shaft defining a friction surface and a positioning surface on the periphery thereof in such a manner that the radius between the center of axis of the pivot shaft and the friction surface is greater than the radius between the center of axis of the pivot shaft and the positioning surface, an upright bearing portion extended from one side of the base portion, a circularly curved constraint portion, an elastic buffer portion connected between the upright bearing portion and the circularly curved constraint portion, an opening defined between the free end of the circularly curved constraint portion and the base portion remote from the upright bearing portion and a flexible space defined between the elastic buffer portion and the friction surface for absorbing stress generated upon displacement of the circularly curved constraint portion due to rotation of the pivot shaft relative to the knuckle.

Abstract: A hinge assembly includes a shaft, a cam, a follower, and an resilient member. The cam, the follower, and the resilient member are mounted with the shaft in turn. One end of the cam has a first outer cam portion and a first inner cam portion. One end of the follower has a second outer cam portion and a second inner cam portion respectively engaging with the first outer and inner cam portions. The resilient member is contained in such a manner that the cam portions of the follower resist the cam portions of the cam due to the decompression of the resilient member, and when the follower is manually rotated relative to the cam about a small original angle, the follower is automatically rotated relative to the cam due to the decompression of the resilient member.

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: An adjustable friction hinge with a first hinge portion with two spaced apart first hinge knuckles and second hinge portion having a second hinge knuckle with rotatably fit together. A barrel bushing is non-rotatably positioned in the second hinge knuckle. A friction bushing is slidably and non-rotatably located in openings in the two first hinge knuckles. A threaded compression nut, and a non-threaded compression nut are located in the two spaced apart first hinge knuckles. A screw passes through the non-threaded compression nut, the spaced apart first hinge knuckles, the second hinge knuckle, the two friction bushings, and into the threaded compression nut. When the screw is tightened, the threaded and non-threaded compression nuts force the two frictional bushing into frictional contact with the barrel bushing to increase a force required to move the first hinge portion and the second hinge portion relative to each other.

Abstract: A hinge includes a fixing member, a shaft fixed to the fixing member, a rotating member, an interfering member, and a fastener. The shaft includes a shaft post, and the fastener is fixed to a distal end of the shaft post. The interfering member defines a fixing hole departing from a center of the interfering member, and includes two guiding surfaces. The rotating member defines an oblong adjusting hole, through which the shaft post rotatably passes. A first resisting stub and a second resisting stub extend from the rotating member, to resist against the corresponding guiding surfaces. The shaft post is fixedly received in the fixing hole. When the rotating member is rotated relative to the shaft post, the first and second resisting stubs always resist against and move along the corresponding guiding surfaces, to urge the shaft post to relatively move in the adjusting hole.

Abstract: A hinge assembly includes a shaft, a rotary member, and a tube. The rotary member includes a friction body and is fixed to the shaft. The tube rotatably engages with the friction body of the rotary member. When the tube rotates to a predetermined position relative to the rotary member, the friction body deforms, thereby generating friction between the friction body and the tube.

Abstract: A hinge includes a first connector which has a hollow pivotal sleeve with a channel penetrating therethrough, a coupling flap and a locating strip spaced from each other in a parallel relation and connected with two opposite edges of the channel respectively, a resilient tube pivotally received within and circumferentially biasing against the pivotal sleeve to produce a friction resistance force therebetween, two second connectors fastened to two opposite ends of the resilient tube, and a fastening element for holding the locating strip and the coupling flap closely together and adjust a space between the locating strip and the coupling flap to further regulate the friction resistance force. So the first connector may be positioned at any desired angle relative to the second connectors by means of the friction resistance force between the resilient tube and the pivotal sleeve.

Abstract: A tilt hinge includes a movable range fixed tilt hinge and a movable range switching member. The movable range fixed tilt hinge includes a spindle, a movable bracket rotatably arranged around the spindle and having a projecting piece, a fixed bracket fixed to the spindle, and a stopper fixed to the spindle and having first and second cam portions. The stopper restricts a moving range of the movable bracket within a first movable range by engaging the projecting piece with the first and the second cam portions. A friction imparting arrangement has a friction built between the movable bracket and the fixed bracket. The movable range switching member is enable to switch the moving range of the movable bracket between the first movable range and a second movable range smaller than the first movable range by a pushing operation.

Abstract: Provided is a hinge that can be manufactured easily in a short time. The hinge rotatably connects a first member and a second member, and is provided with two brackets that are rotatable against each other and mounted to the first member and the second member, respectively, and a friction-torque-generating member that generates friction torque by directly or indirectly pressing the two brackets against each other. A first of the two brackets is configured from an integral structure that includes a shaft part that passes through the second bracket and supports the rotation, and a mounting part that is mounted to the first member or the second member, with the shaft part and the mounting part being produced from a plate material.

Abstract: A hinge device 100 includes: a one-piece hinge base 20 such that connecting hinge bases 21a, 21b in which rotational shaft portions 23a, 23b are protrusively provided in the same direction by a burring process are connected together through a hinge base connecting part 22; and a one-piece holder 10 such that connecting holders 11a, 11b having click washers 30a, 30b attached thereto are connected together through a holder connecting part 12, wherein the one-piece holder 10 is assembled to the one-piece hinge base 20 from one direction.

Abstract: A portable computer is provided that has a housing. Upper and lower portions of the housing may be joined using a hinge. A clutch mechanism may be associated with the hinge. The clutch mechanism may exhibit asymmetrical friction during opening and closing of the portable computer housing portions. Additional closing force may help to prevent the computer from having a lid that is too easy to close, without overwhelming the clutch with unnecessary friction. The clutch may have a clutch spring that is attached to a clutch shaft using a slot in the shaft. A lobe may be provided in the spring in the vicinity of the slot. A protective cap may be provided over the tip of the shaft to prevent damage to nearby wires. A friction band in the clutch may be used to directly engage an end of the spring.

Abstract: A selective compliance hinge, apt to define a turning pair with a default axis of rotation (A), allows to obtain a selective compliance turning pair, hence with the advantages typical of such applications but providing the best precision and movement repeatability, and comprises a connecting element (3) compliant between a first and a second body (1, 2), and characterized by that each of said bodies (1, 2) has a first and a second extension (11, 21), respectively, said extensions (11, 21) comprising respective surfaces (111, 211) conjugate therebetween, so that said surfaces (111, 211) slide one relative the other remaining adjacent therebetween and defining a rotary motion taking place substantially about said default axis of rotation (A).

Abstract: A hinge for coupling two parts to allow one part to be positioned at an arbitrary angle and to maintain said angle by providing a high static torque that resists rotation between the parts. The hinge includes a plurality of identical clips having a flat polygonal shape and a closed opening a receiving a cylindrical shaft. The clips are stacked to form a central opening having a polygonal shape and the shaft extends through the central opening to form an interference fit with the clips.

Abstract: An electronic device and an operation method thereof are provided. The electronic device includes a fixing element, a first main body and a second main body. The fixing element has a first arc-shaped groove, which passes through the fixing element. The second main body has a second arc-shaped groove and a first straight groove, wherein the second arc-shaped groove and the first straight groove are interconnected. The first main body has a first protrusion which passes through the first arc-shaped groove and lodges in the first straight groove. While the first protrusion is slid for a first predetermined distance from one end of the first straight groove, the first arc-shaped groove and the second arc-shaped groove are overlapped, so that the first protrusion is slid along the first arc-shaped groove which overlaps the second arc-shaped groove for driving the first main body.

Abstract: Disclosed herein is a sliding/hinge apparatus for sliding/rotating type mobile terminals, which can be slid and rotated from a body housing of the sliding/rotating type mobile terminal. The sliding/rotating type mobile terminal includes a body housing and a slide housing slidably mounted on the body housing. The apparatus comprises first and second hinge frames mounted in the body housing by means of screws, first and second plates, one or more slide bars, and a coupling unit inserted through the center parts of the first and second hinge frames so that the first and second hinge frames are rotatably coupled with each other while being opposite to each other.

Abstract: A two-stage torsion pivot hinge including an axle connected with a base and having a shaft mounted thereon with a bush for a spring tube. The bush forms a first and a second protrusion element respectively extending out of its two ends. The spring tube is fixedly connected with a supporting member and is provided with two torsion sleeves respectively on the two ends of the bush. Each torsion sleeve has an axial cut and has two contact elements extending respectively toward the two ends of the bush. The contact elements respectively interfere with the first and the second protrusion elements. By the function between the torsion sleeve and the bush, the pivot hinge can provide different torsion forces for the stroke of rotating the screen from its closed position to a vertical angular position and for the stroke from the vertical position to its maximum opening angular position.

Abstract: An overhead storage system for attachment to a ceiling includes a hollow housing, frame and a pair of pivots pivotally attaching a rear end of the frame to a rear end of the housing so that the frame pivots between a storage position wherein the frame is disposed generally coplanar with a ceiling surface and an access position wherein the frame is disposed at a predetermined angle relative to the ceiling surface. A latch assembly releasably secures the frame in the storage position. There is a storage container which is telescopically movable through an open front end of the frame between a retracted position wherein the storage container is substantially disposed within confines of the frame and an extended position wherein a front end of the storage container is disposed a predetermined distance from the open end of the frame.

Abstract: A portable computer is provided that has a housing. Upper and lower portions of the housing may be joined using a hinge. A clutch mechanism may be associated with the hinge. The clutch mechanism may exhibit asymmetrical friction during opening and closing of the portable computer housing portions. Additional closing force may help to prevent the computer from having a lid that is too easy to close, without overwhelming the clutch with unnecessary friction. The clutch may have a clutch spring that is attached to a clutch shaft using a slot in the shaft. A lobe may be provided in the spring in the vicinity of the slot. A protective cap may be provided over the tip of the shaft to prevent damage to nearby wires. A friction band in the clutch may be used to directly engage an end of the spring.

Abstract: A portable terminal apparatus includes a first body having a base, to which a first hinge arm is provided, the first hinge arm including a first axis hole having a protrusion extending axially; and a second body having a base, to which a second hinge arm including a second axis hole is provided. The apparatus also includes a hinge axis that includes an axially provided groove to be engaged with the protrusion, and that is fitted to the first axis hole and the second axis hole, so as to connect the first body and the second body, allowing opening and closing movements of the first body and the second body. The protrusion is formed such that an end of the protrusion facing the second hinge arm is positioned inside the first axis hole inwardly from an end of the first axis hole.

Abstract: A checker-equipped door hinge device for vehicle includes: a first bracket fixed to one of a body and a door; a second bracket fixed to another one of the body and the door; a hinge pin connecting the first and second brackets to each other, and allowing the brackets to be relatively rotatable; an inner cylinder connected integrally to the first bracket and disposed coaxially with the hinge pin; an outer cylinder connected integrally to the second bracket and disposed so as to surround the inner cylinder in a manner of being rotatable relative to the inner cylinder; and a checking-force generating mechanism provided between the inner cylinder and the outer cylinder, the checking-force generating mechanism generating a checking force against the door at a predetermined opening position of the door, wherein an inner peripheral surface and an outer peripheral surface of the outer cylinder are eccentric to each other, so that a thick wall portion having a large distance between the inner peripheral surface and th

Abstract: A loose-pin hinge with integrated stop includes a first hinge leaf having a knuckle having a bore therethrough and a second hinge leaf including a lower knuckle and an upper knuckle each having a bore therethrough. The lower knuckle and the upper knuckle are interdigitially mated with the knuckle of the first leaf such that the bores of the knuckles are coaxially aligned. The hinge further includes a hinge pin having a shank, a head disposed at an upper end of the shank, and a stop member extending radially outward from the head. The shank of the hinge pin is received through the coaxially aligned bores of the knuckles to enable the first leaf to pivot about the hinge pin with respect to the second leaf, the stop member limiting the pivoting of the first leaf to a maximum pivoting angle with respect to the second leaf.

Abstract: A washer is for a hinge assembly. The hinge assembly includes a shaft. The washer is placed around the shaft. The engagement between the washer and the shaft is a clearance fit. By the clearance engagement between the washer and the main shaft, the mechanism efficiency is greatly improved.

Abstract: A hinge device includes a first connecting member, a second connecting member, and a locking member. The first connecting member defines a connecting portion hole therein. A positioning arm with an angled surface is located on the first connecting member. The second connecting member defines a connecting body hole therein. A connecting body post is located on the second connecting member. The locking member engages in the connecting portion hole and the connecting body hole so that the first connecting member is rotatable relative to the second connecting member. The connecting body post abuts on the angled surface and the first connecting member is rotated between a first position where a first friction is generated between the connecting body post and the angled surface, and a second position where a second friction is generated between the connecting body post and the angled surface and greater than the first friction.

Abstract: A hinge assembly includes a shaft, a tube, two friction members, and a resilient member. The tube is rotatably sleeved on the shaft. One of the shaft and the tube defines two receiving holes. The friction members are positioned in the receiving holes. The resilient member causes the friction member to resist the other one of the shaft and the tube which does not define the receiving holes. A foldable electronic device applying the hinge assembly is also provided.