Abstract: A rotary damper comprises a casing fixable to a structure and which comprises a wall which surrounds a chamber filled with a viscous fluid and has an inner surface facing the chamber. A cover is mounted and welded on a shoulder surface of the wall of the casing in such a way as to close the chamber in a sealed manner. A rotor which is mounted rotatably on the casing and comprises a disc portion, adapted to rotate within the chamber, and has a shaft portion extending axially from the disc portion and emerging through the cover so as to be operationally associable with a movable member. The cover has peripherally a collar-like protuberance, extending along the entire perimeter of the cover and coupled to the inner surface of the wall of the casing in such a way as to oppose the infiltration of the viscous fluid between the collar-like protuberance and the inner surface of the wall.

Abstract: The invention relates to a hydrodynamic machine, especially a hydrodynamic retarder, comprising two blade wheels which are opposite of one another in such a way that they jointly form a toroidal working chamber which can be filled with a working medium in order to hydrodynamically transfer torque by means of a cycle flow of the working medium in the working chamber from the first blade wheel to the second blade wheel, with the first blade wheel rotating about a rotation axis and the second blade wheel rotating about the same rotation axis in the same direction of rotation or opposite of the direction of rotation of the first blade wheel, or being held in a stationary manner.

Abstract: A damping device comprises an axle, a housing, a unidirectional member, and a damping oil. The unidirectional member in cross section is formed like a T-shape, and a top portion thereof is formed as an arc to cooperate with the housing's inner wall. Where the unidirectional member contains a U-shaped slot defines oil holes interlaced with the gap of the first slot wall. The lifting of the cover is free from damping and the closing thereof performs a well damping capability. Even only a narrow angle is lifted, a delicate damping is still achieved. The undersized unidirectional member concurrently guarantees the structural strength. The diminished cross-section of the unidirectional member contributes to a smaller U-shaped slot. Therefore, while satisfying the turning angle, the thicknesses of the U-shaped slot's wall and the obstructing wall are assured to greatly prolong the using life of the present invention.

Abstract: The invention relates to a method for operating a hydrodynamic retarder having at least one working chamber that is filled with a working medium in braking mode, and substantially emptied in non-braking mode. According to the invention, a prescribed amount of working medium is pulsingly brought into the working chamber of the retarder in non-braking mode. This can occur either constantly, or as a function of suitable measurement variables.

Abstract: An electronic steering damper system is provided for a vehicle. The electronic steering damper system can be supported with respect to the vehicle's frame and can selectively impose resistance to steering of one or more of the vehicle's wheels in response to a vehicle condition signal received from a sensor such as, for example, a vehicle speed sensor. An actuator connected with the electronic steering damper system can be configured for use by an operator to adjust the manner in which the electronic steering damper system selectively imposes resistance to steering of the wheel(s) in response to the vehicle condition signal. Vehicles including an electronic steering damper system are also provided.

Abstract: The invention relates to a damping mechanism for folding seats in chairs, having an application in seats (1) incorporated in an articulated assembly by means of shafts (2), with springs (4) which act in the sense that they tilt the seat towards a vertical folded position, incorporating in each shaft (2) an eccentric cam (5) on which there is supported a damping piston which exerts retention action for smoothing the upward rotation of the seat by the action of the springs (4).

Abstract: A damper 1 includes a vessel 4 for accommodating a viscous fluid 3 in its interior 2; hampering walls 5 and 6 for hampering the flow of the viscous fluid 3; a partitioning member 11 which partitions each of interior portions 7 and 8 into two chambers 9 and 10 and is provided rotatably; a communicating hole 13 formed in the partitioning member 11 so as to allow the two chambers 9 and 10 to communicate with each other via a variable passage 12 whose passage cross-sectional area changes; a flow limiting means 14 for limiting the flow of the viscous fluid 3 in the chamber 9 into the chamber 10 through the communicating hole 13, when the internal pressure of the viscous fluid 3 accommodated in the chamber 9 has exceeded a fixed value on the basis of the rotation of the partitioning member 11; and a resilient means 15 for resiliently urging the partitioning member 11 in an R2 direction with respect to the vessel 4.

Abstract: A rotary damper (D) is constituted by: housings (11, 51); a silicon oil (21) being housed inside the housings (11, 51); a rotor (31) wherein a resistive portion (36) moving through the silicon oil 21 inside the housings (11, 51) is provided in an axial portion (32) which is housed inside the housings (11, 51) and projects from the housings (11, 51); and an O-ring (61) preventing the silicon oil (21) from leaking between the axial portion (32) and the housing (51), and multiple arc-like through-bores (37) are provided in the resistive portion (36) on a concentric circle, and depressed grooves (38) communicating with the arc-like through-bores (37) are provided. Accordingly, during the assembly, the air being mixed into the housing is not allowed to be excessively compressed, so that even if the rotor rotates bi-directionally, the noise being caused by the air being mixed into the housing can be prevented.

Abstract: A baby walker is disclosed, comprising a base, having an adjustable link at each of its two laterals and a plurality of rollers at its bottom; and a surround, having two regulators sustained by the top ends of the adjustable links, where the two regulators are adjusted until a width is reached to accommodate each riding infant child, and some fixing members are used to encircle the child for holding his/her body, which is just like holding by somebody's hands, where the child's weight is fully sustained and his/her body is kept in a balanced gesture, which brings about good sense of security and comfort to the child whenever he/she is learning to walk.

Abstract: A brake mechanism for an injection device for generating a braking action on a moving, e.g. rotating, part or component of the injection device.

Abstract: The invention relates to a pressurized hydraulic rotation damper intended for use on a multiwheeled vehicle. The rotation damper comprises an outer housing and a lid that together enclose a damping-medium-filled main chamber, which chamber is pressurized by a pressure tank and divided by a delimiting blade/arm into two volumes. The damping medium flows between the two volumes in a duct delimited by at least a first valve and a second valve. These valves throttle the flow between the volumes when the blade moves in an inward and outward motion respectively, starting from an intermediate position where the two volumes are substantially equal in size, to an outer position, in which the blade bears against or is placed close to the inner face of the outer housing. The first valve controls the flow for outward motions and the second valve is used to control the flow for inward motions to either pass through the first valve, through the second valve or through both valves.

Abstract: The present invention provides a rotary damper in which both yields and braking characteristics can be enhanced. The rotary damper of the invention includes a valve mechanism which comprises an operating chamber 7 through which fluid can pass, a valve body 8 which forwardly moves from a natural state position when the valve body 8 receives fluid pressure and which can forwardly moves in the operating chamber 7, and a first spring 9 capable of giving a resistance to the forward movement of the valve body 8. The valve mechanism can reduce a flow rate of fluid which passes through the operating chamber 7 by a flow path 14 formed between the valve body 8 and a peripheral wall 7a of the operating chamber 7. A reducing amount of fluid can be increased as a moving distance of the valve body 8 which forwardly moves in the operating chamber 7 is increased.

Abstract: A torsional vibration damper comprises a housing with a fluid-tight ring-shaped chamber and a vibration ring, which is rotatably supported in the ring-shaped chamber of the housing. Between the vibration ring and the housing, a gap-shaped oil receiving space is formed, which is filled with a viscous damping fluid The oil receiving space has an oil outflow and an oil inflow. The oil drain communicates with a section of the oil receiving space located radially further outside than the oil inflow. The replacement of the damping fluid present in the oil receiving space is thus controlled. This makes it possible to refresh the damping fluid over an operation interval, so that the defined damping properties are maintained during the entire operation period. This helps to increase the life of a torsional rotary damper that is autonomous with reference to the oil supply, or to lengthen maintenance intervals.

Abstract: A damping force generating mechanism (V) comprises a front valve body (6) which allows working oil to flow from a first oil chamber (R1) to a second oil chamber (R2) under a predetermined resistance when lifted, and a rear valve body (7) which is disposed on the rear side of the front valve body (6) and allows working oil to flow from the second oil chamber (R1) to the first oil chamber (R1) under a predetermined resistance when lifted. An oil passage (5c) and a check valve (10) are provided to serve as a part of a flow path from the second oil chamber (R2) to the first oil chamber (R1). By disposing the oil passage (5d) in parallel with a center axis of the front valve body (6) and the rear valve body (7), the size of the damping force generating mechanism (V) can be reduced.

Abstract: The present invention provides a rotary damper in which both yields and braking characteristics can be enhanced. The rotary damper of the invention includes a valve mechanism which comprises an operating chamber 7 through which fluid can pass, a valve body 8 which forwardly moves from a natural state position when the valve body 8 receives fluid pressure and which can forwardly moves in the operating chamber 7, and a first spring 9 capable of giving a resistance to the forward movement of the valve body 8. The valve mechanism can reduce a flow rate of fluid which passes through the operating chamber 7 by a flow path 14 formed between the valve body 8 and a peripheral wall 7a of the operating chamber 7. A reducing amount of fluid can be increased as a moving distance of the valve body 8 which forwardly moves in the operating chamber 7 is increased.

Abstract: A steering damper apparatus includes: a body frame; wheels suspended by the body frame; a steering shaft rotatably supported by the body frame, one end of the steering shaft being connected to the wheel side; a handlebar connected to the other end of the steering shaft for rotating the steering shaft to steer the wheels; and a damper for damping the rotation of the steering shaft. The rotation of the steering shaft is damped by the damper only when there is an input from either the handlebar or the wheels.

Abstract: A pressure-medium actuated swivel motor includes a cylinder with closed ends and an inside surface with a pair of diametrically opposed axially extending ribs, and a motor shaft with a pair of diametrically opposed axially extending vanes, wherein the vanes and the ribs bound first and second pairs of diametrically opposed working chambers between the motor shaft and the cylinder. First and second pressure medium ports are connected to respective first and second pairs of working chambers, each pair being connected by an interconnection channel through the shaft. A movable separating element which divides a compensating space in the piston into a first and second compensating subspaces, wherein the first compensating subspace is connected to the first pair of working chambers, and the second compensating subspace is connected to the second pair of working chambers.

Abstract: A damper (1) has silicone-based unvulcanized rubber (4) interposed between a housing (2) and a shaft (3) which are disposed in such a manner as to be relatively rotatable about an axis (A) in (R) directions with respect to each other, and rotational energy between the housing (2) and the shaft (3) is absorbed through the deformation of the silicone-based unvulcanized rubber (4).

Abstract: A torsional vibration damper system includes a primary side and a secondary side coupled to the primary side by a damper fluid arrangement for rotation and for relative rotation with respect to one another. The damper fluid arrangement has a first damper fluid which transmits a torque between the primary side and the secondary side and a second damper fluid which is loaded when there is an increase in pressure in the first damper fluid. A rotary feedthrough supplies or removes first damper fluid to or from at least one displacement chamber of the damper fluid arrangement and a pressure fluid generation system for providing first damper fluid to be supplied to the damper fluid arrangement via the rotary feedthrough. The pressure fluid generation system comprises at least two pressure fluid pumps.

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 rotary damping device (10) includes a housing (12) comprising a radially inner wall (17), a radially outer wall (18) and an end wall (19), which delimit a chamber (16) containing a viscous braking fluid; and a rotor (14), rotationally connected to the housing and mounted thereon on the opposite side to the end wall (19) so as to close the chamber (16). The rotor comprises a braking portion (27) having the form of an annular collar which extends axially inside the chamber (16) and is arranged between the radially inner wall (17) and the radially outer wall (18) of the housing (12). The radially inner wall (17) of the housing (12) has, formed therein, at least one recess (31) facing the braking portion (27) of the rotor (14) and able to interrupt the circular profile of the radially inner wall (17) inside the chamber (16).

Abstract: A rotary damper allows for fluid bypass through the interior of the hydraulic chamber, as opposed to dampers where fluid bypass occurs only along the walls of the hydraulic chamber. Additionally, the damper accommodates bi-directional damping, by providing a universal piece and switching the position of a component in the piece.

Abstract: A saddle riding type vehicle includes a vehicle body frame 4 constituting the vehicle, a front wheel disposed steerably on the vehicle body frame 4, a steering shaft 27 transmitting a steering input from a rider to the front wheel, and a steering damper 36 giving a steering mechanism 57 an attenuation force relative to rotation of the steering shaft 27. The steering damper 36 includes a damper case 72, a vane rotatable in the damper case 72, and an arm 73 directly connected to the vane and extending to an outside of the damper case 72. The damper case 72 is disposed between an upper steering shaft 27a and a lower steering shaft 27b to form part of the steering shaft 27, and the arm 73 is directly connected to the vehicle body frame 4.

Abstract: A damper device having a casing with a cylindrical inner circumferential surface, a shaft body located in the cylindrical space of the casing and supported in a freely turnable manner, a cover which seals the casing, and viscous fluid stored in a sealed space formed between the shaft body and the casing. The casing is provided with a first engagement part and a second engagement part which engage with the cover, and the cover is welded with the first engagement part by ultrasonic welding and positioned by the second engagement part which is used as a positioning part in an axial direction for the cover.

Abstract: An apparatus having in a mutually rotatable configuration, a first fluid shear member connectable to a first moveable body part of a handheld device and a second fluid shear member connectable to a second moveable body part of the handheld device. The first and second fluid shear members are configured to experience mutual rotation when the first and second moveable body parts are connected respectively to the first and second fluid shear members and when the moveable body parts are moved in relation to one another. The first and second fluid shear members are matched and there is fluid between the first and second fluid shear members so as to invoke viscous dampening when the first and second fluid shear members rotate in relation to one another.

Abstract: A steering shaft (2) penetrates a head tube (1) fixed to a vehicle body (A) of a motorcycle. The steering shaft (2) is coupled to a front wheel and handlebars of the motorcycle. A linear damper of a double-rod type is enclosed in the steering shaft (2). When the steering shaft (2) rotates with respect to the vehicle body (A), a feed screw (12) engaged with a screw portion (11) on the outer circumference of one of the piston rods (6a, 6b) causes the linear damper to operate. By enclosing the linear damper in the steering shaft (2), a space for disposing the steering damping device can be minimized. The feed screw (12) converts a rotational displacement of the steering shaft (2) into an axial displacement of the piston rods (6a, 6b) such that a bending load does not act on the piston rods (6a, 6b).

Abstract: A torsional vibration damper is integrated into a rotating electrical machine. A rotatable assembly of the electrical machine includes a rotor core pack having a first end and a second end. The integrated torsional vibration damper consists of a torsional elastic coupling and a torsional elastic damper and provides mechanical damping. The integrated torsional vibration damper is mounted to the rotatable shaft of the electrical machine by a flange. The rotor core pack is mounted at the first end to the integrated torsional vibration damper by suitable structure members such as a mounting flange and is not fixedly mounted directly to the rotatable shaft. In the case where the rotor core pack is cooled by circulating coolant fluid (e.g. MIDEL) then the integrated torsional vibration damper may be a viscous damper that uses the coolant fluid as a viscous working fluid.

Abstract: A retrieval assembly is configured and arranged for use with a retractable lifeline assembly including a cable assembly. The retrieval assembly is releasably engagable with the cable assembly to pay out or retract the cable during rescue.

Abstract: An apparatus for damping the torsional excitation of a hollow drive shaft is provided. The apparatus includes an elongate member that extends along the interior of the drive shaft, one end of the member is secured to one end of the drive shaft, the other end of the member is disposed at the other end of the drive shaft, and a hydraulic damping device secured to the other end of the drive shaft for damping vibration of the other end of the member. The hydraulic damping device includes a piston and cylinder arrangement having first and second hydraulic chambers, a reservoir of hydraulic fluids, and hydraulic circuitry which uses the hydraulic chambers to communicate with the reservoir. The hydraulic damping device is arranged so that any leakage of hydraulic fluid from the first and second hydraulic chambers via a piston/cylinder interface passes to the reservoir of hydraulic fluid.

Abstract: A hydrodynamic retarder with a tangential inflow and outflow principle which is achieved by the rotor (1) and the stator (2) having a predetermined eccentricity relative to one another. A variable outlet gap (6) is formed about a circumference of the hydrodynamic retarder between the rotor (1) and the stator (2).

Abstract: In a rotary damper capable of being easily assembled by reducing the remaining air inside an accommodation portion and reducing the non-uniformity of damping torque, a center shaft 73 is provided in the center of a fixing and supporting member 71, an inner cylinder wall 63 into which the center shaft 73 is inserted rotatably is provided in a driven rotation member 61, an O ring 81 which prevents the leakage of viscous fluid 101 from between the driven rotation member 61 and the fixing and supporting member 71 is provided, a first path 70 which enables the accommodation portion 91 to communicate with its outside is provided between the center shaft 73 and an inner circumference face of the inner cylinder wall 63, and a hole 63c which allows the bottom side of the O ring 81 inside the accommodation portion 91 to communicate with the first path 70 is provided in the driven rotation member 61.

Abstract: A hydrodynamic retarder having a first blade wheel and second blade wheel concentric thereto, forming a hydrodynamic circuit grouped about a common rotary axis. Each blade wheel includes a base body and a blade arrangement fixed thereto including a plurality of blades each connected to receptacles in the base body. A first ring segment of at least one blade wheel includes at least one first blade having a flow edge facing the other blade wheel in each case, said edge having at least one extension running in a substantially straight line between the radial outer end thereof and the radial inner end thereof, and at least one second blade is provided in a second ring segment of the blade wheel, the blade having a retraction both opposite the flow edge facing the other blade wheel in each case, and opposite a protrusion protruding in the direction of the other blade wheel.

Abstract: A damper for damping movement of an object is formed from silicone impregnated or silicone containing components. The damper includes a housing having walls defining a well and a rotor positioned in the housing within the well. The rotor is positioned to define a space between the rotor and the walls. One or more seals is positioned between the housing and the rotor to isolate the space from the environment. A damping fluid is present in the well between the rotor and the housing for damping rotation of the rotor relative to the housing. The housing, the rotor and the seals are formed from silicone containing or silicone impregnated materials. The damping fluid is also a silicone based material.

Abstract: A device (15) for slowing the movement of a door (2) urged by unidirectional thrust means (4), including a casing (17) fixable to a structure (S) and defining a chamber (18) filled with a viscous fluid, and a rotor (31). The rotor (31) includes a disc portion (32) and a shaft portion (33) protruding through the lid (21) of the casing (17) in such a way as it can be associated with the door (2). The base surface (23a) of the chamber (18) has a recess (51) operable to house a pivotable arm (52). The arm (52) has a pin portion (54) protruding into the chamber (18). The lower surface (62) of the disc portion (32) of the rotor (31) has a groove (70) for engaging the pin portion (54) of the arm (52). At one end (73), the groove (70) has a cam (76) dividing it into a return path (75) and a forward path (74) for the pin portion (54) so as to define a locking position for the rotor (31) in cooperation with the thrust means (4).

Abstract: A vehicle body is made to be more compact by disposing a steering damper at an even lower position. A top bridge includes a steering damper mounting portion, on which a steering damper is mounted, disposed rearwardly of a head pipe and downwardly of an upper surface of the top bridge. The steering damper includes a steering damper main body disposed on upper portions of main frames and a first link mounted on an input shaft of the steering damper main body and extending in a forward direction of a vehicle body. The steering damper mounting portion and the first link are pivotally movably connected to each other via a second link.

Abstract: A rotary damper includes an operating part mounted in an interior in a vehicle in such a manner that the operating part can be introduced or withdrawn, an operating part case that guides a path of the operating part, a pinion gear mounted to one side of the operating part and a guide rail rotatably mounted to the operating part case such that the pinion gear can be engaged with the guide rail. Further, a separation preventing protrusion is provided at a portion of the guide rail, where the pinion gear starts to move in a curvilinear form, the separation preventing protrusion configured to support an outside surface of the pinion gear.

Abstract: A refrigerator with an ice dispenser includes a spiral type time delay unit for controlling the opening and closing of an ice duct. A duct cap opens and closes an ice duct formed in the refrigerator. A rotating shaft of the time delay unit is operably connected to the duct cap. Foldaway catching members on a rotating shaft intersect with a threaded cylindrical body. The catching members fold back to allow a quick opening of the ice duct. The catching members then interact with the threaded cylindrical body as the ice duct closes to delay the closing process.

Abstract: A damper (1) for furniture parts which are movable relative to one another and/or for furniture fitting components (2, 5, 6, 11, 13, 14) of a furniture fitting, wherein the damper (1) has at least two damping components (8, 9), which are mounted such that they can move relative to each other during a damping stroke, and a damping medium, which is arranged or acts between said damping components (8, 9), and at least one actuating element (7) which is operatively connected to the first damping component (9) at least during the damping stroke of the damper (1), wherein a locking device is arranged between the second damping component (8) and a retaining part (12, 27), wherein the locking device couples the second damping component (8) fixedly to the retaining part (12, 27) during the damping stroke of the damper (1), and wherein, during the return stroke of the damper (1), the locking device decouples the second damping component (8) from the retaining part (12, 27) so as to realize a freewheeling motion such th

Abstract: According to problem solving means of the present invention, in a suspension device (S) comprising a motion transforming mechanism (T) for transforming a linear motion of a linear motion member (1) into a rotational motion of a rotating member (2) and a motor (M) connected to the rotating member (2) in the motion transforming mechanism (T), an air spring (AS) is provided, the air spring (AS) including a tubular air chamber (22) connected to the motor (M), an air piston (37) connected to the linear motion member (1) and being tubular and smaller in diameter than the air chamber (22), and a diaphragm (27) interposed between the air chamber (22) and the air piston (37), a stopper (38a) is provided on an outer periphery of the air piston (37), and a stopper seat (46) is provided on an inner periphery of the air chamber (22) so as to be put in abutment against the stopper (38a) upon maximum extension of the suspension device involving relative separation of the air chamber (22) and the air piston (37) with respect

Abstract: A viscous fluid-sealed damper (1) having a shaft receiving section (2c) in which an installation shaft (3) with a swollen head (3b) is fitted and also having a separation wall (2). At least a portion of the separation wall (2) is constructed from an elastic separation membrane, and the separation wall (2) continues to the periphery of the upper edge of the shaft receiving section (2c) such that the shaft receiving section (2c) extends inward. Viscous fluid is sealed inside the separation wall (2). A positioning section (2f) for positioning the shaft receiving section (2c) is provided at that position of a bottom face (2a) of the separation wall section (2) that faces the shaft receiving section (2c). The viscous fluid-sealed damper can be assembled with good work efficiency and is unlikely to be damaged during assembly.

Abstract: A mounting system for a rotary damper includes a base mount, a damper mount member, a damper arm, and a frame bracket including a spherical bearing. The base mount and frame bracket are designed to be mounted on a motorcycle and the damper mount member is rotatably connected to the base mount. The damper mount member and the damper arm are designed to be connected to the rotary damper. The damper arm is connected to the frame bracket using the spherical bearing and can move axially and rotationally with respect to the bearing. The mounting system allows the damper to move with respect to the motorcycle and prevents unnecessary forces from damaging the damper. The shapes and sizes of the various parts of the mounting system may vary depending on the type of motorcycle being used with the mounting system.

Abstract: A variable resistance device is adapted to be incorporated in an exercise machine to provide variable resistance. The device has a primary fluid chamber. A rotating mechanism rotates within the primary chamber. The rotation mechanism upon rotation encounters a degree of resistance dependent on the amount of fluid in the primary chamber. A secondary chamber is positioned within or proximate the primary chamber. The secondary chamber achieves and maintains an appropriate amount of the fluid in the primary chamber to provide a selected degree of resistance for the exercise machine. Fluid flows through the primary chamber into the secondary chamber and then back into the primary chamber. Variable control of the flow of fluid serves to establish and maintain the appropriate amount of fluid in the primary chamber required for a certain degree of resistance; and can provide differing degrees of resistance for the exercise machine.

Abstract: A damper assembly is provided including a linear to rotary motion conversion mechanism having an outer tube member. An inner tube member is reciprocally movable and at least partially disposed within the outer tube member. The inner tube member is adapted for linear translation in a first and a second direction. A rotatable shaft is disposed within the inner tube member. The translation of the inner tube member produces a rotation of the shaft. Also included within the damper assembly is a damping mechanism having a rotor fixed to the shaft. A coil is configured to generate an electromagnetic field in response to an applied current. A magneto-rheological fluid is in contact with the rotor, and has a variable viscosity in the presence of the electromagnetic field that, in turn, provides variable resistance to rotation of the rotor and translation of the inner tube member within the outer tube member.

Abstract: A rotary damper is provided so that air incorporated into a housing during assembly is, not excessively compressed, whereby a generation of a peculiar sound due to the air incorporated into the housing can be prevented even though the rotor rotates in both directions, and so that the air is stopped and captured in a fixed place whereby influence on the generated torque can be reduced, and irregularity of the torque can be reduced progressively. A rotary damper includes a housing (11, 51), silicon oil housed inside the housing (11, 51), a rotor 31 housed inside the housing (11, 51), and having a shaft member (32) projecting from the housing (11, 51) and having a resistance member (36) moving through the silicon oil (21) inside the housing (11, 51), and an O-ring (61) for preventing leakage of the silicon oil (21) from between the shaft member (32) and the housing (51). A circumferential groove (54) is provided on an inner face of the housing (51) facing the resistance member (36).

Abstract: In the breakdown preventive mechanism of a rotary damper of the invention, when the upper rotor (12) is rotated in one direction, a communication path is formed between the valve body (16) and the lower rotor (15), and the pressure in the pressure chamber is formed between the lower rotor and the lower housing (17) is lowered, and rotation is easily performed. In the breakdown preventive mechanism of a rotary damper, when the upper rotor (12) is rotated in other direction, the viscous fluid does not flow between the valve body and the lower rotor, and the pressure in the pressure chamber formed between the lower rotor and the lower housing is raised. As a result, the viscous fluid pushes down the relief valve (13) and the relief valve (14) by resisting the elastic element (19), and thereby prevents breakdown of the rotary damper.

Abstract: A rotary damper includes a driven-to-rotate member having integrally a driven-to-rotate part for coupling to a drive member and a first inner cylindrical wall, the first inner cylindrical wall including a locking part at a bottom end of the first inner cylindrical wall; a fixed support member for holding the driven-to-rotate member so as to rotate freely; a receiving part formed between the fixed support member and the driven-to-rotate member; and a seal member for sealing an outer perimeter of the receiving part so that the driven-to-rotate member and the fixed support member are capable of relative rotation. A viscous fluid is provided inside the receiving part for damping relative rotation between the driven-to-rotate member and the fixed support member.

Abstract: A hinge includes a housing. A stopper plugging up one end of the housing defines a through-hole. A sliding cam slideably received in the housing defines concave portions on a top surface thereof and an axial hole. A rotatable cam has a base portion extending downward to form pushing portions disposed in the concave portions. The base portion defines a receiving hole. A top surface of the base portion protrudes upward and defines a stepped portion. A spring is slideably received in the housing. One end of the spring is fixed on the sliding cam and the other end of the spring is fastened around the stopper. A shaft received in the housing runs through the axial hole, the spring and the through-hole. An end of the shaft is fixed with the stopper, and an opposite end of the shaft is received in the receiving hole. A damper has a top wall extending downward to form an enclosure. A top surface of the top wall protrudes upward to form a preventing block.

Abstract: A damper (2) includes: a fixing member (12); a rotator (11) which is rotatably supported by the fixing member (12) and forms a gap (13) with the fixing member (12); a silicone-based unvulcanized rubber (15) disposed in the gap (13); and a one-way clutch means (16) which, in a lateral rotation (R1) of a rear seat (3) in a lowering direction, is adapted to transmit the lateral rotation (R1) in the lowering direction to the rotator (11) so as to cause the rotator 11 to undergo rotation about an axis X, and which, in the lateral rotation (R1) of the automobile rear seat (3) in a raising direction, is adapted to inhibit the transmission of the lateral rotation (R1) in the raising direction to the rotator (11).

Abstract: A drive train, especially a vehicle drive train, includes: an engine for supplying drive power into the drive train; a cooling circuit in which a cooling medium is revolved in order to cool the engine or an electric generator or another unit; an expansion machine which is driven with fluid or steam as a working medium and by way of which additional drive power can be supplied to the drive train or which drives an electric generator or another unit, the cooling medium of the cooling circuit being simultaneously the working medium of the expansion machine; and a bypass to the expansion machine which is provided through which the working medium of the expansion machine is forced through a switching valve or can be guided past the expansion machine automatically by the prevailing pressure conditions.

Abstract: A damper includes a cylindrical housing, a rotor rotatably disposed in the housing and having a cylindrical shaft portion and a wing portion radially outwardly extending from the shaft portion, a control valve member disposed between the housing and the shaft portion to cover the wing portion, and a viscous fluid filled inside the housing. The wing portion has an asymmetric shape with respect to a rotational direction of the rotor relative to a straight line extending radially from the shaft portion. The wing portion includes a tip side surface, and a back end side surface. The control valve member includes a first inner surface facing a sloping surface parallel thereto, and a second inner surface facing a flat surface parallel thereto.