Abstract: A linear compressor of the present invention comprises: a shell having a suction portion; a cylinder disposed in the shell and forming a compression space for a refrigerant; a piston arranged to axially reciprocate in the cylinder; and a spring device for inducing a resonant motion of the piston, wherein the spring device comprises a spring, a first supporter to which one side of the spring is connected and which moves together with the piston, and a second supporter to which the other side of the spring is connected, and each of the supporters has a coupling groove for fitting the spring therein.

Abstract: The invention relates to a hinge (10) comprising a swivellable hinge part (12), a stationary hinge part (14) and a tensionable spring element (34), wherein the stationary hinge part (14) is designed with a first bearing (16) as well as a second bearing (18), wherein the bearings (16, 18) have swivel axes (S1, S2) that are offset to one another. According to the invention, the swivellable hinge part (12) is mounted on the stationary hinge part (14) via the first bearing (16) such that it can swivel about a swivel axis (S1), and the tensionable spring element (34) is arranged on the stationary hinge part (14) via the second bearing (18).

Abstract: An electronic device may have a housing with first and second portions that move relative to each other. The housing may have a hinge that is configured to bend about a hinge axis. Control circuitry in the electronic device may adjust an electrically adjustable device to control resistance of the hinge to bending about the hinge axis. The electrically adjustable device may be an electroactive polymer that that adjusts pressure between two sliding layers of material, may be a magnetorheological device, may be an adjustable component formed from a shape memory material, or may be another electrically adjustable device. One or more sensors in the electronic device may gather sensor data such as touch input, force input, input related to movement of the housing, housing position information, and/or other data. During operation, the control circuitry can adjust the resistance of the hinge to bending based on the sensor data.

Abstract: Examples disclosed herein relate to a hinge assembly with a compressible sleeve. In one example, a base member is coupled to an upright member via a hinge assembly. In an example, the hinge assembly include a first securing member, a second securing member including a shaft coupled to the first securing member; a compressible sleeve to engage the shaft, and a spring coupled to the first securing member. In an example, the spring is to engage the compressible sleeve and apply a compressive force on the sleeve in response to a rotational movement of the hinge assembly in a first direction and reduce a compressive force when the hinge assembly is rotated in a second direction.

Abstract: A display case includes a housing partially surrounding a display space, a door pivotably coupled to the housing and cooperating with the housing to further enclose the display space, and a hinge assembly for pivotably coupling the door to the housing. The hinge assembly includes a biasing member applying a biasing force on the door and a gear drive for adjusting a pre-tension force on the biasing member.

Abstract: A temperature-controlled case is provided including a frame and a door coupled to the frame and pivotable about a pivot axis between a closed position and an open position. The door includes a passage that interchangeably receives a door closure control assembly at one of the top or the bottom of the door, and an electrical connectivity system at the other of the top or the bottom of the door. The electrical connectivity system includes a first electrical connector coupled to the door, and a second electrical connector coupled to the frame so that the first and second electrical connectors are engaged when the door is coupled to the frame. The door closure control assembly includes a torsion spring that is fixed at one end to the door and fixed at another end to the frame, so that when the door is opened the torsion spring provides an increasing force to urge the door toward the closed position.

Abstract: The present invention relates to a hinge apparatus for a door, and more particularly, to a separated type hinge apparatus with an automatic return function, in which a restoring device and a damping device are installed separately so that the overall length of the hinge apparatus is reduced, and thus the hinge apparatus may be buried less deeply. A separated type hinge apparatus comprises: an elastic casing; a first elastic member that provides a restoring force; a clutch device which is combined with one end of the first elastic member and controls the elastic force of the first elastic member to remain constant; a shaft penetratively combined through the clutch device in order to transmit a rotational force; and a spring fixing member which is coupled to the other end of the first elastic member and has a gear groove to control a spring elastic force.

Abstract: A hinge has a pivoting leaf (2) and a fixed leaf (3), a hollow axle (7) fixedly connected to the pivoting leaf and rotatably connected to first and second journal bearings (5-1, 5-2) of the fixed hinge leaf, a spiral torsion spring (8) arranged in the hollow axle. One end of the spring is fixed to the hollow axle and the other end of the spring is fixed to a worm wheel (9) that is arranged in the first journal bearing. An endless screw (6) resides in the first journal bearing and engages with the worm wheel. Rotation of the endless screw drives the worm wheel and the spiral torsion spring to rotate, thereby adjusting the tension of the spring.

Abstract: A damped hinge module is disclosed and includes a first member, a second member and a torsion spring. The second member is rotationally movable relative to the first member between a first position and a second position. The second member being received at least in part within the first member. The torsion spring is located internally with respect to the first member and biases the second member toward the first position relative to the first member. The spring has a preload with the second member in the first position relative to the first member.

Abstract: A hinge assembly includes a resilient member and two rotary units. Each rotary unit includes a shaft, an outer tube, and an inner tube. The outer tubes are sleeved on the shafts correspondingly. The inner tubes are non-rotatably connected to the shafts and rotatably connected to the outer tubes. The resilient member is positioned between the rotary units, thus causing the inner tubes of the rotary units to resist the outer tubes.

Abstract: A hinge includes a hinge assembly and a damper assembly. The damper assembly includes a stationary housing defining a cavity. A damper body rotatablely installed in the cavity has a head protruding to form a cylindrical guiding portion and a pushing portion defining two side ends apart from each other. The side ends are unparallel and at least one of the side ends is inclined relative to the axis direction of the damper body to make the width of the pushing portion between the side ends be changed gradually, and rotatable sheets and stationary sheets are received in the cavity and alternately disposed on the guiding portion and the pushing portion. The stationary sheets are respectively fixed to the stationary housing. Each rotatable sheet protrudes inwardly to form a retaining portion. The side ends of the pushing portion alternately contact the retaining portions and contact the retaining portions one by one when the elastic force of the hinge assembly is released to drive the damper body rotating.

Abstract: The adjustable self-closing hinge (1) comprises a first hinge part (2), a second hinge part (3), a hinge shaft (10), a torsion spring (18) having a first end (19) fixed with respect to the first hinge part (2) and a second end (20) fixed with respect to the hinge shaft (10) to exert a moment onto the first hinge part, and means for adjusting the moment exerted by the torsion spring on the first hinge part. These adjusting means comprise a coupling element (21) which is interposed between the first end (19) of the torsion spring (18) and the first hinge part (2) and which is rotatably mounted in the first hinge part, and a screw-like element (24) which is rotatably mounted in the first hinge part (2) and which is arranged to cooperate with the coupling element (21) to rotate the coupling element with respect to the first hinge part so as to adjust the moment exerted by the torsion spring on the first hinge part.

Abstract: A hinge including a first hinge member and a second hinge member that is rotatably coupled to the first hinge member. The hinge has a torsion spring with a first end of the spring secured relative to the first hinge member and a second end adjustably securable relative to the second hinge member. An adjustment mechanism is included and is capable of disengaging the second end of the spring relative to the second hinge member and into engagement relative to the first hinge member to allow rotation of the second hinge member relative to the second end of the spring, and then re-engage the second end of the spring relative to the second hinge member, thereby changing engagement position of the second end of the spring relative to the second hinge member and adjusting the torsional spring tension.

Abstract: A tubular spring hinge assembly includes a connecting tube for connecting two tubes, and two separation tubes mounted between the connecting tube and each of the two tubes. Each of the two separation tubes is made of a wear-resistant plastic, thereby eliminating noise due to friction when the two tubes are rotated relatively by the door plate.

Abstract: Disclosed herein is an improved arrangement for the operation of an overhead garage door that comprises an adapter utilized for installation and periodic maintenance of the support arrangement. Also disclosed is an adapter for use with existing garage door structures, improved wrenches for use in tensioning coil springs usually found in such arrangements and a method for tensioning such coil springs when they are originally installed or during periodic maintenance of the springs. The adapter comprises a body that may be mounted upon a rotatable shaft that supports the coil springs and be non-rotatabley attached to an end of the coil spring and the rotatable shaft. The attachment to the shaft is a releasable connection and the body has splines or projecting abutment surfaces so that two of the improved wrenches according to the present invention may have their jaws closely surround and engage the splines on the body.

Abstract: A hinge in accordance with the present invention comprises a first element and a second element pivoted together to reciprocally rotate from an open position to a closed position. The first element includes a hollow central body, a hinge pin and a fastening pin being transversely mounted in the hollow central body. The second element includes a strip extended therefrom. The strip includes an opening in a middle thereof. A distal portion of the strip is extended into the hollow central body and wound around the hinge pin so as to form a stop that is associated with the opening. A spring is mounted around the fastening pin. The spring includes a first end attached to a bottom of the hollow central body and a second end that is extended through the opening and attached to the stop of the strip, thereby providing control between the first element and the second element by elasticity of the spring.

Abstract: A video cassette recorder is equipped with a tape tension adjusting device which includes a tension lever having a tension pole coming into contact with a tape and rotatably mounted on the deck to be biased toward the tape by a torsion spring, and an eccentric cam having a cylindrical body and a shaft eccentrically extending from the cylindrical body and rotatably mounted on the deck through the shaft. One end of the torsion spring comes into contact with the pressed piece and the other end thereof comes into contact with the cylindrical body of the eccentric cam in such a way that the pressing force of the tension pole against the tape changes with the eccentric cam.

Abstract: A hinge construction has a fixed hinge member and a movable hinge member fixed to a mandrel, the mandrel being rotatably supported on the fixed hinge member, and a single coil spring one end of which is anchored immovably to the fixed hinge member the other end being free the coil spring closely surrounding the mandrel, an interior surface of the spring being in contact only with the mandrel, the arrangement being such that movement of the movable hinge member in one direction rotates the mandrel in a sense acting to uncoil the coil-spring thus allowing free movement of the movable hinge member whereas movement of the movable hinge member in the opposite direction acts to cause the coil-spring to tighten about the mandrel and thus resist movement.

Abstract: A hinge that provides equilibration and variable friction for a display screen or a laptop lid. In the preferred embodiment, a torsion rod provides a restoring force which increases as the lid is moved either direction from its vertical position. A friction hinge, of well know design, uses a spring band about a shaft. One end of the torsion rod is coupled to the end of the band of the friction hinge, so that the moment in the torsion rod increases or decreases the moment in the spring band of the hinge, modifying the frictional torque accordingly. This allows the frictional torque to be low as the lid is first opened, and larger as the display reaches the useful range of its motion.

Abstract: The hinge comprises a first hinge member (11) and a second hinge member (12). The first hinge member comprises a cylindrical housing (16) having first and second open ends (17 and 18 respectively). The cylindrical housing (16) is located between flange members (26 and 27) of the second hinge member (12). A torsion spring (20) is provided inside the cylindrical housing (16) and one end (21) fits into a recess (22) at end (18) of the cylindrical housing (16) and the other end fits into a recess (36) in a coupling element (30) which is located at the other end (17) of the cylindrical housing (16). The coupling element (30) has a hexagonal engagement surface (39) which engages a matching engagement surface in flange (27).

Abstract: A hydraulic buffer hinge for a door comprising a hydraulic buffer mechanism having a piston and a piston rod supported on a spring and received inside a hydraulic oil container to slowing down the return stroke of two swinging plates when the door, onto which the swinging plates are fastened, is closed.

Abstract: A joint device, wherein a shaft is supported by a base member, and can rotate in a first direction and a second direction. Two coil springs are mounted on the shaft. The first coil spring has an end fixed to the base member. The inner diameter of the first coil spring is smaller than the outer diameter of the shaft. The first coil spring is wound around the shaft in the first direction. The first coil spring is wound tightly around the shaft when the shaft is rotated in the first direction. An arm is attached to the shaft. The arm twists the free end of the first coil spring in the second direction, whereby a return torque is accumulated in the first coil spring. The second coil spring also has an end fixed to the base member. The free end of the second coil spring is twisted when the shaft is rotated in the second direction, whereby a return torque is accumulated in the second coil spring.

Abstract: A hinge joint includes a first planer element and a second planer element, each of said planer elements having an exterior side and an interior side. Each planer element exhibits an opening for axial rotational attachment about an end of an intermediately rotationally secured third planer element. The first and second planer elements are secured, at a defined offset by several bolts. Such offset is proportioned to permit rotation of the end of the third planer element therebetween. The interior surfaces of the first and second planer elements are provided with linear channels within which are placed springs, the function of which is to regulate the angulation and resilience of the third planer element relative to the mutually secured first and second elements of the hinge joint.

Abstract: A gate latch assembly includes a pair of cover members having a common plane of symmetry. A first cover member defines a recess receiving an adjoining lever and spacer block, each having its own plane of symmetry perpendicular to the cover plane of symmetry. The spacer block includes a pair of recesses on opposing sides of the block at one end thereof for receiving the lever on either side of the block. The remaining cover member closes the recess and defines another recess with the first cover member for receiving a portion of a gate or other swinging member on which the gate assembly is mounted. The symmetry of the assembly permits it to be used for left-handed or right-handed and inside or outside opening. A preferred hinge includes a pair of identical post leaves and a gate leaf. Each post leaf includes a knuckle and a post plate supported tangentially from the knuckle by an extenison portion.

Abstract: The present invention covers a door hinge equipped with a damper spring, composed of two cylindrical bodies, kept in place by their anchor plates with the door, respectively the door frame. One of the cylindrical bodies forms a watertight chamber by way of sealing plugs, inside which a piston is mounted, held laterally in the cylinder by longitudinal guides which prevent the piston from rotating. Said piston has a threaded axial bore by which it is mounted on a journal with a wide screw pitch, the journal being the end of an axial shaft which passes through a central perforation in one of the sealing plugs of the watertight chamber. All this is so designed that the turning of the second cylindrical body of the hinge caused by its being fixed to the door by its respective anchor plate, creates a torsion stress in a spring, while at the same time turning the axial shaft in the watertight chamber filled with oil-hydraulic fluid.

Abstract: This invention relates to a novel anchor cone and winding cone apparatus and method for mounting a coil torsion spring to an overhead door. Indicia are provided on the cones to assure proper orientation of the cones to the spring and the cone/spring assembly to the overhead door. The winding cone includes arrow indicia to clearly indicate the direction of rotation for the winding cone to increase tension on the coil torsion spring. A groove break is provided in each cone to substantially reduce chafing and wear of the corresponding coil of the coil torsion spring.

Abstract: A door-closer hinge includes a first flap secured to a door, a second flap secured to a door frame, and an automatic closer as restored by a restoring spring and having a longitudinal casing secured to the second flap, in which a rotor vane fixed on a rotor having a needle passage formed in the rotor is operatively rotated with respect to a cylinder vane fixed inside a cylinder which is filled with a hydraulic oil and disposed around the rotor to thereby form a rotary-movement shock absorber for quickly opening a door when the oil is rotatably driven to contract the two vanes for quick flow of oil to the left, or for slowly closing the door when the oil is slowly returned to the right to expand the two vanes to allow oil flow merely through the smaller needle passage in the rotor.

Abstract: A torsion bar assembly such as may be used to provide a counterbalancing force active on a part movable with respect to a second part is mounted on one of those parts by a structure which permits the torsion spring unit to be readily moved into position, with its operative parts in desired rotational position relative to one another as well as to the parts with which they are to be used. The mounting structure is provided with a recess with inwardly projecting teeth and the torsion unit has externally projecting teeth which can be engaged with the internally projecting teeth. A part is designed to be a part of the assembly, hold the parts of the assembly in desired rotational relationship, and ensure that the assembly is mounted in proper rotational position.

Abstract: In a variable tension device having an elongated torsion member adapted to be connected at axially spaced points to a relatively fixedly mounted support and to an object rotatably movable relative to said support, novel structure is provided for adjusting (a) the effective length of the torsion element, thereby to vary the effective spring rate, (b) the angular anchor position of that portion of the torsion bar secured to the support, and (c) the axial and, if desired, angular position relative to the torsion element of the member connecting that element to said external object.

Abstract: This invention provides for a loading arm for use with material handling systems and includes a support structure and an arm pivotally attached to the support structure for swivel movement in both the horizontal and vertical plane relative to the support structure.