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 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.

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 mechanism includes a connecting member, two pivotal shafts substantially parallel to each other, two main gears, two transmission gears, and a resisting member. The connecting member sleeves on the two pivotal shafts. The two main gears non-rotatably sleeve on the corresponding two pivotal shafts, respectively. The two transmission gears are rotatably positioned between the two main gears and mesh with each other and the two main gears. The resisting member sleeves on the two main pivotal shafts and holds the two main gears and the two transmission gears together with the connecting member.

Abstract: The invention relates to a motor vehicle hinge consisting of a first and second hinge wing (2, 3), a hinge pin (4) connecting the first and second hinge wing (2, 3) in a rotary movable manner around a hinge axis (SA), a preferably continuously variable brake arrangement (5), which comprises one braking surface (5.1) provided at least section-wise radially to the hinge axis (SA) and at least one brake body (5.2) interacting with the braking surface (5.1). In an especially preferred embodiment, the braking surface (5.1) is designed as one piece with the first hinge wing (2) and the brake body (5.2) is provided radially at a distance from the hinge axis (SA) and is directly connected with the second hinge wing (3).

Abstract: A two-stage dual-pintle hinge mainly includes at least one connecting element which has two apertures run through by a first axis and a second axis in the same direction. The first axis and the connecting element form a first pivot displacement, and the second axis and the connecting element form a second pivot displacement. The first and second axes have respectively a first anchor portion and a second anchor portion. The connecting element has a corresponding third anchor portion. During the first pivot displacement, the first anchor portion and the third anchor portion form an anchor relationship and drive the second pivot displacement of the connecting element and the second axis. During the second pivot displacement, the second anchor portion and the third anchor portion form an anchor relationship to stop pivoting.

Abstract: An armrest hinge unit for a vehicle includes a lower bracket fixed to one side of an armrest container near an opening thereof and including a pivoting-allowable space in the lower bracket, a frictional member disposed in the pivoting-allowable space of the lower bracket and fixed to the lower bracket, and an upper bracket having a hinge portion hingedly coupled to the lower bracket and a receiving groove to elastically receive the frictional member therein, the upper bracket being connected to an armrest cover, wherein at least an inner surface of the receiving groove of the upper bracket is in elastic contact with the frictional member so that a position of the arm rest cover is maintained by frictional force therebetween.

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: A hinge includes a rack, a shaft, and an interfering assembly. The interfering assembly includes a first interfering member fixed to the rack, and a second interfering member capable of rotating with the shaft. The first interfering member includes a first end surface. A first tab is formed on the first end surface. Each of two opposite ends of the first tab forms a first slope surface. The second interfering member includes a second end surface. A first recess is defined in the second end surface for receiving the first tab therein. Each of two opposite ends of recess forms a second slope surface. The shaft rotates with respect to the rack. One of the first slope surfaces of the first tab is able to engage with a corresponding one of the two second slope surfaces of the first recess to guide the first tab sliding into the first recess.

Abstract: In one example, we describe a case (otherwise known as a sleeve, holder, portfolio, jacket, or shell) for an electronic device, such as a tablet computer. This case allows the user to protect and personalize their tablet computer. This case has the unique property of allowing the user to position the device for viewing in either portrait or landscape mode. This is an increasing useful function as media (such as videos) are engaging the users for longer periods of time. This case does not require the user to hold the device in the desired orientation. In another example, we describe a distinct hinge, with a stop that limits its rotational travel allowing the user to prop the tablet computer up, at a viewing angle. In another alternative, this friction hinge can have an angular zone of travel, where little or no friction is encountered.

Abstract: A hinge assembly includes a pivot shaft, a fixing module, a rotatable module, and a fixing member. The pivot shaft includes a first end and a second end opposite to the first end. The fixing module is non-rotatably sleeved on the pivot shaft adjacent to the first end and includes a first magnet. The rotatable module is rotatably sleeved on the pivot shaft adjacent to the second end and includes a second magnet. A polarity of the second magnet faces an opposite polarity of the first magnet such that the first and second magnets creating an attracting force. The rotatable module is pushed to tightly contact the fixing module by the attracting force such that a friction is created between the rotatable module and the fixing module to hold the rotatable module. The fixing member is fixed at the second end of the pivot shaft.

Abstract: A hinge assembly includes a first connecting member, a second connecting member, and a pivot subassembly. The pivot subassembly connects the first connecting member to the second connecting member. The pivot subassembly includes a rotatable shaft, a sleeve, and a positioning ring. The rotatable shaft is non-rotatably connected to the first connecting member. The sleeve is sleeved on the rotatable shaft, and non-rotatably connected to the rotatable shaft. The positioning ring is non-rotatably connected to the second connecting member. The sleeve defines two positioning cutouts, and the positioning ring defines two positioning protrusions engaging with the positioning cutouts. When the rotatable shaft rotates, one of the sleeve and the positioning ring deforms, so that the at least one positioning protrusion disengages from the at least one positioning cutout.

Abstract: A hinge includes a first bracket, a second bracket, a shaft, and first and second interference elements. The shaft is fixed to the first bracket. The second bracket rotationally fit about the shaft. The first interference element is rotationally mounted on the shaft and fixed to the second bracket, and defines two unleveled surfaces at one side. The second interference element is immovably mounted on the shaft beside the first interference element, and defines two unleveled surfaces at one side facing and corresponding to the unleveled surfaces of the first interference element.

Abstract: A hinge assembly includes a pivot shaft, a first supporting member, a second supporting member, a first positioning piece, and a second positioning piece. The first supporting member and the second supporting member are sleeved on the pivot shaft. One of the first supporting member and the second supporting member is non-rotatably connected to the pivot shaft. The first positioning piece and the second positioning piece are sleeved on the pivot shaft, and adjacent to each other. The first positioning piece defines a plurality of positioning protrusions. The second positioning piece defines a plurality of positioning holes for receiving the positioning protrusions. The second positioning piece is elastic. When the first supporting member rotates relative to second supporting member, the second positioning piece deforms.

Abstract: An apparatus, for positioning a flipping cover relative to a base, includes a first member being fixed relative to the flipping cover, and a second member being fixed relative to the base. The first member defines an arched guiding channel around a rotating axis of the flipping cover. The first member forms at least one raised ridge extending into the guiding channel. The second member forms a guiding rod parallel to the rotating axis. The guiding rod is slidably received in the guiding channel. The guiding rod is deformable to get through the at least one raised ridge. A casing utilizing the above apparatus is also disclosed.

Abstract: A dual-axis hinge mechanism includes a rotatable bracket, a first rotatable assembly rotatably assembled on the rotatable bracket, and a second rotatable assembly pivotally assembled to the rotatable bracket. The second rotatable assembly includes a fixed bracket, a pivot shaft rotatably extended through the fixed bracket, a first limiting member rotatably sleeved on the pivot shaft, and a second limiting member non-rotatably sleeved on the pivot shaft. The second limiting member is rotated a certain angle follow the pivot shaft in a clockwise or counterclockwise direction, and then drives the first limiting member to rotate with the second limiting member. The total of the rotatable angle of the second limiting member relative to the first limiting member and the rotatable angle of the first limiting member relative to the fixed bracket is about 360 degrees.

Abstract: A hinge assembly includes a first rotating module and a second rotating module. The first rotating module includes a frame and a pivot mechanism positioned on the frame. The second rotating module includes a supporting body, a shaft, a rotating washer, a stationary washer, a resilient ring, and a nut. A first end of the shaft is fixed on the frame, and the supporting body, the rotating washer, the stationary washer, the resilient ring, and the nut are orderly sleeved on a second end, opposite to that of the first end, of the shaft. The nut fixes the supporting body, the rotating washer, the stationary washer, and the resilient rings to the shaft. The rotating washer and the stationary washer forms at least one protrusion and at least depression for receiving the at least one protrusion respectively. The pivotal shaft is configured to drive the stationary washer to rotate.

Abstract: A hinge has a guiding component, a sliding component and a pivoting device. The guiding component has a base and a track. The base has a top, a free end, a pivoting end and a pivoting portion. The pivoting portion is formed on the pivoting end. The track is mounted on the top of the base near the free end and has two wings. The wings protrude out respectively and traversely from the track. The sliding component is slidably mounted around the track and has a bottom and two recesses. The recesses are formed on the bottom of the sliding component, are opposite to each other and are respectively mounted around the wings. The pivoting device is pivotally mounted to the pivoting portion of the guiding component. Therefore, the guiding component is mounted slidably on the guiding component and pivotally to the pivoting device.

Abstract: A supporting mechanism movably supports a display body, a display surface of which is in the vertical position and in an inclined position. A pressing mechanism has an elastic member which stores repulsive force by being pressed by the display body as the display body moves from the vertical position to the inclined position, and presses the display body by the repulsive force in the direction from the inclined position to the vertical position. A position holding mechanism holds the display body at an optional position anywhere between the vertical position and the inclined position.

Abstract: A hinge assembly includes a pivot shaft, a rotatable leaf rotatably sleeved on the pivot shaft, a fixing leaf non-rotatably sleeved on the pivot shaft, a first magnet fixed to the rotatable leaf, a second magnet fixed to the fixing leaf, and a fixing member. A polarity of the second magnet faces an opposite polarity of the first magnet in a predetermined position such that the first and second magnets experience attraction. The attraction is changeable when the rotatable leaf is rotated relative to the fixing leaf. The fixing member is fixed at an end of pivot shaft to prevent the rotatable leaf and the fixing leaf from detaching from the pivot shaft.

Abstract: A rotary shaft structure includes a case, a first shaft fitted in the case with an end of the first shaft outward extended from an end of the case; a second shaft fitted in the case with an end of the second shaft outward extended from an opposing end of the case opposite to the first shaft; and a push unit arranged in the case to locate between the first and the second shaft. The rotary shaft structure is simplified and can be coupled to and between a main body and a display of a notebook computer, enabling easy open of the display without causing a rearward tilted main body and slow close of the display without impacting against the main body.

Abstract: A hinge includes a first connecting member, a shaft, a second connecting member, a first fixing member rotatably mounted to the shaft, a ring immovable fixed to the shaft and abutting against the first fixing member, a number of biasing members all rotationally mounted to the shaft, and a fastener. The shaft extends from the first connecting member, with a threaded distal end of the shaft engaging with the fastener. The second connecting member defines a first depressed portion, a through hole transversely passing through the first depressed portion for rotationally fitting about the shaft, and a fixing slot in a first end of the second connecting member. The first fixing member is received in the first depressed portion, and a fixing protrusion extends from the first fixing member for engaging with the fixing slot.

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 includes a bracket with a protruding portion, a shaft extending through the bracket, a positioning member mounted on the shaft, and a resilient member. The shaft includes a post and a blocking portion. A slope surface is formed from one end of the protruding portion. The positioning portion is formed on the positioning member facing to the protruding portion of the bracket. An inclined stopping surface is formed from one end of the positioning portion. The resilient member fits about the shaft between the blocking portion and the positioning member. When the shaft rotates with respect to the bracket beyond the limits of a desired angle, the protruding portion drives the inclined stopping surface of the positioning member to move the positioning member away from the bracket to compress the resilient members for obviating the hinge to be damaged.

Abstract: A locking device for locking a displaceable motor vehicle part which is lockable by the means of the locking device within a displacement range in a respective rest position reached by displacement is provided. The locking device comprising a braking device with at least two braking elements which interacts in a braking manner in a respective rest position of the motor vehicle part in order to lock the motor vehicle part, and which can be brought into a position without braking engagement by inducing a release force into the braking device. An actuator is assigned to the locking device, which is optionally combinable with the braking device and with which a displacement movement of the motor vehicle part is brakable for locking the motor vehicle part.

Abstract: A locking device for locking a displaceable motor vehicle part which is lockable by the means of the locking device within a displacement range in a respective rest position reached by displacement is provided. The locking device comprising a braking device with at least two braking elements which interacts in a braking manner in a respective rest position of the motor vehicle part in order to lock the motor vehicle part. An actuator is assigned to the locking device, which is optionally combinable with the braking device and with which a displacement movement of the motor vehicle part is brakable for locking the motor vehicle part. The actuator is operatively connected independently on the braking device with a component which can be moved by displacement of a motor vehicle part so that a displacement movement of the displaceable motor vehicle part is brakable by the action of an actuator on the component.

Abstract: A support mechanism is adapted to support an upper body of an electronic element, and the upper body can be turned pivotally relative to a lower body of the electronic device. The support mechanism includes a base, a plate, a transmission shaft and a torsional force generating device, in which the base is fixed on the lower body and the plate is fixed on the upper body. Furthermore, the transmission shaft is passed through and installed on the base and the torsional force generating device is wound around the transmission shaft. One end of the torsional force generating device is extended outward and fixed on the plate so as to couple the base to the plate and process a pivotal turn.

Abstract: Furniture hinge with damping and/or braking device in alternative to those already existing and capable of guaranteeing an improved efficiency during the closing and/or opening operation of doors, or other furniture parts, without any variations to the overall dimensions of standard hinges. The improved efficiency of the hinge is obtained by increasing the friction surfaces with a viscous medium present in suitable areas of the hinge and/or by allowing regulation of the trend of the angular velocities of one or more circular shaped elements, for example a disc, which act as braking elements in contact with the viscous medium.

Abstract: Provided is a hinge device for connecting one member and another member so that the hinge device allows opening and closing, including: a movable shaft; a first bracket non-rotatably fixed to the movable shaft and fixed to the one member; a second bracket rotatably and axially movably installed on the movable shaft and fixed to the other member; and a plate spring member formed in a curved configuration, having at a top of the curved configuration of the plate spring member a projection whose surface in contact with the second bracket is flat, and non-rotatably and axially movably installed on the movable shaft, in which the second bracket and the plate spring member are pressed against and held in contact with each other and make relative rotation.

Abstract: An exemplary interference assembly of a hinge includes a first element and a second element. The first element defines a through hole in a center, and a first depression portion in the side. A first raised portion protrudes from the side of the first element. The first depression portion and the first raised portion are opposite each other across the through hole. The second element defines a fixing hole in a center, and a second depression portion in a side facing the side of the first element for engaging with the first raised portion. A second raised portion protrudes from the side of the second element for engaging with the first depression portion. The second depression portion and the second raised portion are opposite each other across the fixing hole.

Abstract: Provided is a hinge device which allows the display device to be watched at an arbitrary angle, thus enabling all the passengers to watch the display at an optimum angle, which helps to achieve an improvement in terms of quality and reliable dropping/opening by causing the dropping/opening movement of the display device due to its own weight to be reliable and gentle in the range from the start to an angle of approximately 30° , and which helps to achieve an improvement in terms of operational feel in the free stop range, thus allowing light operation.

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: The present invention polynucleotide aptamers that selectively bind to and inhibit the function of osteopontin, pharmaceutical compositions comprising the same, and methods of use for diagnostics and treatment of diseases and disorders associated with osteopontin.

Abstract: A damping hinge device includes a hinge and a damper. The damper is arranged coaxially with the hinge and has a damping shell, a damping body, a plurality of rotating slices, a plurality of limiting slices, an outer gasket and a pushing body. The damping shell has a cylinder-shaped shell body, a top cover is formed in the top of the shell body. The damping body is accepted in the damping shell and has a basic portion and a column portion extending from one end of the basic portion. The rotating slices are accepted in the damping shell and fixed around the column portion. The limiting slices are fixed in the damping shell and rotatably around the column portion of the damping body, the limiting pieces and the rotating pieces are staggeredly arranged. Damping oil is filled between the adjacent limiting slices and the rotating slices. The outer gasket is disposed on the basic portion of the damping body and pressed against the shell body.

Abstract: A hold-down support structure is coupled to a stem of a pintle to form a hinge, and includes a support board and a sleeve. The support board has a support section forming a support face. The sleeve includes first and second brackets. When the sleeve is mounted to the support board, a stem receiving space is defined by by the support board and the first and second brackets. The stem is inserted into the stem receiving space and an outer circumferential surface of the stem is subject to constraint by the support face of the support board and the resilient retention forces respectively applied by the first and second brackets symmetrically in directions toward the support face so that a predetermined rotational friction is induced between the outer circumferential surface of the stem and the inside surfaces of the first and second brackets.

Abstract: A hinge for use in a mobile terminal comprises a first hinge portion defining an opening and having a slot extending from the periphery of the first hinge portion to the opening, and a second hinge portion defining an opening and having a slot extending from the periphery of the second hinge portion to the opening. The first hinge portion is one body portion of the mobile terminal, and the second hinge portion is secured to the other body portion. The hinge portions are rotatably connected such that the openings are aligned. The hinge portions are relatively rotatable between a first position where the slot in the first hinge portion and the slot in the second hinge portion are aligned, and a second position where the slot in the first hinge portion and the slot in the second hinge portion are not aligned and the openings cannot be accessed from the exterior of the hinge.

Abstract: The present invention provides a free stop hinge which can be stopped at any angle, the hinge having a structure in which a pressing force by means for pressing can be set with little variation and can be adjusted easily. The free stop hinge of the present invention connects an opening and closing member to a main body portion so that the opening and closing member can be opened and closed with respect to the main body portion and can be stopped at an arbitrary opening angle, which includes a hinge base and a hinge arm rotatably connected to the hinge base through an intermediation of a support shaft. The hinge base and the hinge arm are provided with bearing plates having shaft holes, respectively. Between the bearing plates, a friction plate having a shaft hole is disposed and the hinge arm is supported by a support shaft so as to be rotatable with respect to the hinge base.

Abstract: A hinge assembly includes a shaft, a resisting member, and an engaging member. The resisting member is sleeved on the shaft. The resisting member comprises a sleeve portion and a warped portion. The warped portion comprises a root connected to an edge of the sleeve portion and a free end away from the sleeve portion. The warped portion gradually deflects towards a side of the sleeve portion from the root to the free end. The engaging member is sleeved on the shaft to resist the warped portion of the resisting member. The engaging member and the resisting member are rotatable relative to each other.

Abstract: A security lock that retrains movement of a hinge is described. A locking system that includes a hinge that includes a first connector, a second connector and a pivot pin, the first connector pivotable relative to the second connector around the pivot pin, and a lock configured to be positioned over the pivot pin to restrain movement of the first connector is described.

Abstract: A casing includes a base, a flip cover pivotably attached to the base, a first member fixed to the flip cover, and a second member fixed to the base. The flip cover is rotatable around an axis of rotation with respect to the base. The first member forms a tip toward the base along a direction perpendicular to the axis of rotation. The second member extends an elongated arm, the elongated arm being crushed by the tip of the first member in an opening process of the flip cover with respect to the base so as to block the flip cover from opening with a rush.

Abstract: A hinge assembly suitable for coupling a notebook computer base to a display includes a first coupling member for coupling to the base and a second coupling member for coupling to the display. A positioning device supports the display at various angular positions relative to the base. A friction device increases resistance to movement throughout the range of motion of the hinge assembly while decreasing torque and pressure load transmitted to the positioning device.

Abstract: A method is applied to manufacture a combination-type male hinge comprising a connection portion and a shaft portion extended from the connection portion, and comprises the steps of: forming a plurality of connection plates by punching along at least one punching direction; making each connection plate have a punched peripheral surface and at least one perforating hole; making the punched peripheral surface have at least one sheared region and at least one torn region; and perforating the perforating holes of the connection plates by a extension bar extended from the connection portion, so as to connect the connection plates and manufacture the shaft portion of the combination-type male hinge.

Abstract: A variable friction hinge is mounted between a cover and a base of an electronic device and has a pintle, a stationary leaf and a washer assembly. The pintle is connected to the cover. The stationary leaf is connected to the base and has an activating panel with an activating edge. The washer assembly has a movable washer, an abrasion washer and a biasing member. The movable washer selectively abuts the activating edge of the activating panel and has an elongated hole slidably mounted securely around the pintle. The movable and the abrasion washers have teeth corresponding to and selectively engaging each other, causing less friction when engaged and more friction when disengaged. When rotated the movable washer selectively disengages the teeth causing the hinge to have greater friction when being rotated one way than the other.

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 moveable along a direction of transition at least during the closing rotation and kinematic means for the conversion of the transition 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 pivotable support shaft for connecting a display with a base member and supporting the display is disclosed. The support is designed to enable the display to have different postures in working condition and package and transporting condition. For example, in the working condition, the screen of the display may be pivotable between a pitch-up angle of about 20° and a pitch-down angle of about ?20°, and in the package and transporting condition, the screen of the display may be pivoted down to a pitch-down angle of about ?90° where the screen faces downwardly to reduce the package size and improve the transportation stability.

Abstract: A mobile phone or other electronic device is provided with an improved friction hinge with a radial range of motion greater than 180 degrees and with detents at both ends of travel. The friction hinge can include an asymmetrical cam in conjunction with a single tab on a follower. Advantageously, the electronic device with the improved friction hinge can allows a full 360 degree range of motion with any number of detents at any radial position.

Abstract: A hinge is mounted between a cover and a base of an electronic device. A lid covers the hinge and is attached securely to the base. The hinge has an arced surface and a rotating shaft. When the cover is pivoted to a certain angle, the rotating shaft abuts the arced surface to lift up the cover so the cover is selectively distant away from the lid. Therefore, the shape of the electronic device does not need to be disfigured and the cover still does not bump against the lid.

Abstract: This invention relates to multiple configurations of devices to restrain a door or similar hinged, swinging appliance from autonomously swinging away from an initial fully or partially opened position to which it has been adjusted. No external, unattached parts are employed. The invention is applicable to any hinged, swinging object. It includes the use of either linear friction, such as through the use of compression nuts and springs applied to the hinged pin, so as to force the hinged knuckles into contact and frictional engagement. Another concept is the use of radial friction, through the application of either a slotted spring pin, or a spiral spring pin, that locates within the knuckles of the hinge components, to add friction to their pivotal movement when opening or closing of a door, or other structure.

Abstract: A hinge for circumrotatory location includes a base, a locating gasket defining a pair of recesses thereon, a top cover defining a third groove in a bottom thereof. The base has a first groove, a second groove above the first groove. A retention slot connects the second groove and has two retention edges. A stop block is rotatably mounted in the retention slot and stretches into the second groove. The retention edges are capable of stopping the stop block. A pair of locating slots corresponding to the recesses are centrosymmetrically defined in the fundus of the third groove. A protrusion protrudes from the bottom of the top cover and adjacent to the third groove. The top cover lies above the locating gasket which is fitted to the first groove. The protrusion rotates around the second groove and is capable of being against two sides of the stop block.

Abstract: A hinge assembly includes a first connecting member, a second connecting member, and a pivot subassembly. The pivot subassembly connects the first connecting member to the second connecting member. The pivot subassembly includes a rotatable shaft, a sleeve, and a positioning ring. The rotatable shaft is non-rotatably connected to the first connecting member. The sleeve is sleeved on the rotatable shaft, and non-rotatably connected to the rotatable shaft. The positioning ring is non-rotatably connected to the second connecting member. The sleeve defines two positioning cutouts, and the positioning ring defines two positioning protrusions engaging with the positioning cutouts. When the rotatable shaft rotates, one of the sleeve and the positioning ring deforms, so that the at least one positioning protrusion disengages from the at least one positioning cutout.