Abstract: A linear vibration damper and/or absorber includes a centre shaft (12) having bearing regions (18) and friction contact regions (20), and a housing (2) including finger assemblies (22) which are mounted with a small radial clearance for accurate location on the bearing regions (18) for axial displacement with respect to the centre shaft (12) along a central axis (X), the finger assemblies (22) each including resilient fingers (38) which extend axially from respective body sections (26) and have contact faces (40) which resiliently engage, i.e. are pressed by the resilience of the fingers (40) into contact with, friction surfaces (20) of the contact regions of the centre shaft (12), whereby relative linear displacement between the centre shaft (12) and the housing (2) is opposed by frictional contact between the friction surfaces (20) and the contact faces (40).

Abstract: A compensating damper comprises opposed working end faces, a hermetically sealed chamber between the working end faces, and a set of plates in the chamber with a film of viscous fluid between each pair of adjacent plates. The damper has at least two different film thickness zones across the set of plates, each of the different film thickness zones providing a different resistance response when acted upon by an outside force exerted on at least one of the opposed working end faces. Multiple internal guide pins may extend axially from the opposed working end faces for engaging the plate stack partially from each of said working end faces to increase the stroke while providing for a compact damper. The plates may have a conical configuration to providing dampening in different plans.

Abstract: An exercise system for use with tools having weighted masses includes a housing having an upper end and a lower end, and a strike post having an upper end that is located above the upper end of said housing and a lower end that is located between the upper and lower ends of the housing. The strike post is configured to move along a vertical axis that extends between the upper and lower ends of the housing. A shock absorbing pad overlies the upper end of the strike post. A spring assembly is disposed between the lower end of the strike post and the lower end of the housing. During a physical exercise session, the shock absorbing pad is hit with a toll having a weighted mass to apply an impact force, which is transferred through the strike post to the spring assembly for compressing the spring assembly.

Abstract: A strut including a housing, a plunger within a space in the housing and including a tapered outer circumferential surface, a primary spring engaged with the housing, a wedge element within the space and including a tapered inner circumferential surface engageable with the outer circumferential surface, and a secondary spring engaged with the wedge element and the plunger to urge the plunger in an axial direction. The primary spring urges the plunger in the axial direction with a first force. In a fully extended mode, the plunger is maximally displaced in the axial direction. In a contracted mode, the plunger is displaced in an opposite axial direction in response to application of a second force, sufficiently greater than the first force, on the plunger in the opposite axial direction. When the second force is sufficiently decreased, the plunger displaces with respect to the housing in the axial direction.

Abstract: A variable semi-active damping assembly comprising a shock body defining a fluid-filled chamber; a piston tube having a first end slidably disposed within the shock body; an inner rod slidably disposed within the piston tube and the shock body, the inner rod having a first end connected to a lower piston mount and a second end extending outward from the piston tube and engaging an adjustment mechanism that is configured to move the inner rod with respect to the shock body; an upper piston mount slidably disposed within the shock body and connected to the piston tube; and a deformable member disposed between the lower piston mount and the upper piston mount, the deformable member being configured to transition between a compressed state and a non-compressed state in response to movement by the lower piston mount.

Abstract: Rotary damper (1) for a motor vehicle, with at least one damping element (2) for damping the relative movement between a first mass disposed on the wheel suspension side and a second mass disposed on the vehicle body side. The damping element (2) has at least one rotatable damper part, which can be set in rotation by a lever element (5) that moves as a result of the motion of the mass and is mechanically coupled to the damping element to permit motion, wherein at least one spring damping element (6) is integrated into the mechanical motion-coupling between the lever element (5) and the rotatable damper part.

Abstract: The invention relates to a friction damper (1) and method related to the preparation of a friction damper, particularly for drum washing machines having a spin gear, with a housing and with a moveable tappet (4) which is arranged in the housing (2), parallel to the housing longitudinal axis (2a), and is led out of the housing (2) and which is provided at its end located in the housing with a moveably guided friction lining (8). The invention is distinguished in that the friction lining (8) or a body carrying the friction lining (8) is provided with a receptacle (22) for receiving an expandable body (23).

Abstract: Damper, in particular for washing machines with a spin cycle, with a housing having a central longitudinal axis and at least partially encompassing a housing interior by housing walls, a plunger displaceable in the housing along the central longitudinal axis, guided out of the housing and having at least one friction lining recess, fastening elements, arranged on open ends of the housing and the plunger, and at least one friction lining, arranged in the at least one friction lining recess and in frictional contact with opposite housing walls.

Abstract: In a damper, in particular for spin-drying washing machines, it is provided, with a view to improved solidity and noise behaviour of the damper, that at least one buffer stop is disposed between at least one piston and at least one stop element, the buffer stop comprising at least one flexibly pliable buffer stop element which is integral with the at least one piston or the at least one stop element.

Abstract: A Magneto-Rheological Elastomer (MRE) spring system includes a spring, an MRE unit in cooperation with the spring, and an electromagnet. The electromagnet may be configured to produce an adjustable magnetic field, wherein when the electromagnet produces a magnetic field, the MRE unit stiffens such that the MRE spring system stiffens.

Abstract: An upper bush is secured to a bracket of a compressor unit, and a lower bush is abutted against a panel member of a vehicle body through a washer. A coil spring is interposed between the upper and lower bushes. A pipe member is inserted through the upper and lower bushes and the coil spring. A bolt is inserted through the pipe member and screwed into the panel member of the vehicle body. The compressor unit is resiliently supported floatingly by the coil spring. Vibration of the compressor unit is damped by friction generated by sliding contact between the pipe member and raised portions of the upper bush. When the vibration amplitude is large, respective projections of the upper and lower bushes abut against each other to suppress the vibration while absorbing impact.

Abstract: An apparatus for controlling relative movement between two interconnected bodies includes a first end cap, a second end cap having an opening, a sleeve interconnecting the end caps to define a chamber between the sleeve and the end caps, a piston assembly including a piston rod extending through the opening of the second end cap, a piston connected to the piston rod, received in the chamber to define at least two fluid chambers on opposed sides of the piston, and a plurality of rollers carried by the piston for rolling engagement with the sleeve. A fluid flow path provides communication between the fluid chambers and provides a restricted fluid flow rate therethrough to control the rate of fluid transfer between the fluid chambers and permit fluid pressure to increase in a chamber into which the piston is being moved to provide a force on the piston opposing its movement.

Abstract: In a damper for spin-drying washing machines, it is provided, with a view to amplitude-dependent damping behaviour being obtained accompanied with manufacture at a low cost, that a frictional damping unit, which is disposed inside a casing, comprises an at least sectionally bare and elastic frictional damping lining for producing a given frictional damping effect, and at least one stop element which is stationary in relation to the casing and turned towards the at least one frictional damping lining, with the at least one stop element being designed for direct cooperation with the at least one frictional damping lining.

Abstract: Damper, in particular for washing machines with a spin cycle, with a housing having a central longitudinal axis and at least partially encompassing a housing interior by housing walls, a plunger displaceable in the housing along the central longitudinal axis, guided out of the housing and having at least one friction lining recess, fastening elements, arranged on open ends of the housing and the plunger, and at least one friction lining, arranged in the at least one friction lining recess and in frictional contact with opposite housing walls.

Abstract: A spring device consists of a coil spring case formed of right, left, back and front side plates and a spring receiving plate, a coil spring having a liner spring property, and a spring urging member for urging the coil spring into the coil spring case. A distance between the right and left side plates of the spring case is set a little larger than an outer diameter of the coil spring. A distance between the back and front side pates of the spring case is set about 1.5 to 2 times larger than the outer diameter of the coil spring, and a length of the spring case is set smaller than a free length of the coil spring. The coil spring is deformed and a non-linear spring property is obtained when the coil spring is urged through the spring urging member.

Abstract: A friction damper with a housing including a cavity. The damper includes a first member disposed in the cavity and movable in the cavity; a second member disposed in the cavity; an intermediate member between the first and second members, the first member being in frictional engagement with the intermediate member; and at least one magnetic field generator mounted to magnetically couple the first and second members thereby maintaining the first member in frictional engagement with the intermediate member and wherein the first member is movable against the intermediate member to generate a damping force.

Abstract: A friction damper a housing including a cavity formed therein; a first member disposed in said cavity and movable in the cavity; a second member disposed in the cavity; an intermediate member between the first and second members, the first member being in frictional engagement with the intermediate member; and at least one magnetic field generator mounted to magnetically couple the first and second members thereby maintaining the first member in frictional engagement with the intermediate member and wherein the first member is movable against the intermediate member to generate a damping force.

Abstract: A seismically restrained vibration isolating mounting device seismically restrains and vibrationally isolates equipment which is supported by an equipment support means, from the equipment mounting surface. This seismically restrained vibration isolating mounting device is comprised of a three-axis snubber mounted to the equipment mounting surface and which restrains the equipment support means; and a vibration isolator, wherein the equipment support means is supported by the vibration isolator and wherein the vibration isolator is supported by the equipment mounting surface, wherein the vibration isolator acts in the direction of gravity, and wherein the three axis-snubber is closer to the equipment supporting surface than the vibration isolator, and the vibration isolator is external to the three-axis snubber.

Abstract: A damper includes a cylinder, and a piston rod inserted into the cylinder through an opening portion of the cylinder. The piston rod includes front and base ends, and a frictional engaging member provided on an outer surface along a longitudinal direction thereof extending from a front end side toward the base end. A resistance device is disposed at the opening portion of the cylinder. The resistance device contacts the frictional engaging member and deforms elastically to provide frictional resistance to the piston rod as the piston rod is withdrawn from the cylinder.

Abstract: Disclosed are a combination type damper and a washing machine having the same. The combination type damper comprises: a cylinder provided with a receiving space having a certain depth at one side thereof; a rod relative-movably inserted into the receiving space of the cylinder; and a composite damping means for generating a damping force by an electromagnetic force when a displacement of a relative movement of the cylinder and the rod is less than a preset length, and for generating a frictional damping force when the displacement of the relative movement is more than the preset length. Transient state vibration and steady state vibration generated from a tub assembly during the entire processes for washing laundry are prevented from being transmitted to a cabinet, thereby minimizing vibration noise towards outside while using the washing machine.

Abstract: A damper includes a cylinder, and a piston rod inserted into the cylinder through an opening portion of the cylinder. The piston rod includes front and base ends, and a frictional engaging member provided on an outer surface along a longitudinal direction thereof extending from a front end side toward the base end. A resistance device is disposed at the opening portion of the cylinder. The resistance device contacts the frictional engaging member and deforms elastically to provide frictional resistance to the piston rod as the piston rod is withdrawn from the cylinder.

Abstract: In an item of furniture having a movable furniture part, such as a drawer, door or folding part, there is provided a damping means which damps movement of the movable furniture part in the closing phase of the closing and/or opening movement. The damping means is constructed as a negative-pressure damping means or combined pressurised and negative-pressure damping means. It has a piston (3) with a resiliently deformable piston part (6) in the piston rod (4), this resiliently deformable piston part (6) being pressed against the cylinder wall during the damping procedure.

Abstract: A sliding resistance member (3) is interposed between a glove box (B) and a rod type air damper (21). It is assumed that when a glove box lid (L) corresponding to a open-close member starts opening, the rod type air damper (21) rotates while running idle in conjunction therewith, in a relation in which the rotary type oil damper (3) is positively interposed between the glove box (B) corresponding to the mounting shaft and the rod type air damper (21). However, since a braking force of the sliding resistance member (3) is applied to the side of the open-close member in a rotating section of the rod type air damper (21), an sufficient damper effect can be obtained even when the open-close member starts opening.

Abstract: A friction dampener can include a housing having one end slidably surrounding one end of a shaft movable relative thereto. Opposing ends of the housing and shaft can each having a connecting eye member for connection to separate independently movable elements. One or more friction elements can be carried by the shaft which frictionally engage inner surfaces of the housing. The friction elements can have inner and outer portions having different material properties. The housing can be adapted to generally maintain the pressure between the friction elements and the housing within a range of desirable pressures.

Abstract: A magnetically actuated motion control device includes a housing defining a cavity and including a slot therethrough. A movable member is located within the cavity and is movable relative to the housing. A magnetic field generator located on either the housing or the movable member causes the housing to press against the movable member to develop a friction force.

Abstract: A vehicle system component is provided with an electrical charge to resist corrosion. Preferably, the electrical charge is generated by movement of components adjacent to the suspension component. Friction surfaces may be placed in contact with each other such that and heat is generated upon movement of the vehicle system components. The heat is transferred into electrical energy. In another embodiment, an electrical coil receives a magnetic member which moves within the coil to generate the current. The charge may be stored in a capacitor and periodically dispatched onto said component. The invention thus provides a low cost and simplistic way of resisting corrosion to vehicle components, and in particular to vehicle suspension components.

Abstract: A shock absorbing tow bar for connection between the accumulating trolley and load carriage of a power and free conveyor system is disclosed. The tow bar includes one component that is connectable to the accumulating trolley and another that is connectable to the intermediate trolley of the load carriage. Limited relative shifting is permitted between the components of the tow bar. Moreover, the components are threadably intercoupled so that such relative shifting requires a screwing or unscrewing action that serves to cushion movement between the accumulating trolley and load carriage.

Abstract: A friction dampener can include a housing having one end slidably surrounding one end of a shaft movable relative thereto. Opposing ends of the housing and shaft can each having a connecting eye member for connection to separate independently movable elements. One or more friction elements can be carried by the shaft which frictionally engage inner surfaces of the housing. The friction elements can have inner and outer portions having different material properties. The housing can be adapted to generally maintain the pressure between the friction elements and the housing within a range of desirable pressures.

Abstract: A double acting shock isolator that includes a cylindrical housing having a radially expanded chamber therein. The housing is closed at one end and open at the other end and a connector is mounted at the closed end. A stack of friction rings are mounted in a preloaded condition between the ends of the expanded chamber and a rod passes into the open end of the housing and through the stack. A pair of spaced apart raised flanges are mounted upon the rod that engages either end of the stack. A second connector is mounted upon the distal end of the rod outside of the housing so that the stack of friction rings is further compressed uniformly when either a tensile force or a compressive force is applied to the connectors.

Abstract: A small-sized damper is provided which enables to effectively vary the damping force of a damper even in a region in which the moving speed of a rod is small. On one of a damper main body and a rod which is inserted into the damper main body, there are mounted a magnet coil having a winding axial line which is coaxial with the damper, and magnetizable attracting members. By electric charging to the magnet coil, the magnetizable attracting members are attracted into contact with the other of the damper main body and the rod.

Abstract: A shock absorber for damping the vibrations of the car by friction between two solid materials. The first solid material is the square aluminum cylinder and the second consists of two aluminum links. The two links are hinged at one end by the rod and pushed at the other end against the cylinder by a spring. This arrangement will help selecting the pulling force and the pushing force as required and within reasonable values.

Abstract: A double damping flywheel for a motor vehicle, comprising two coaxial masses mounted movably in relation to one another in opposition to a resilient member and a friction member (51-55). A bearing part (60) is provided between the masses, integral with one of the said masses, and for the most part receives the friction means. The bearing part (60) comprises a shoulder engaging (60B) with teeth (62) designed to be edged so as to keep a stack of washers (51-55) in position, each tooth (62) being framed by stabilising lugs (70) allowing the bending operation to be assisted by a matrix of tools.

Abstract: A lift truck 100 has an inertial damper 150 coupled between the base frame 116 and a A-frame holding a suspended wheel. The damper has a slider plate 170 frictionally engaged by friction pads 161, 169 on outer plate 160 and friction pads 181, 189 on the other outer plate 180. The outer plates 160, 180 are spring biased against slider plate 170 by belville washers 162, 182 or a coil spring 210.

Abstract: A railway vehicle truck bolster friction shoe pocket includes a sloped rear wall and longitudinally spaced sidewalls depending from the rear wall to form a friction shoe pocket having open top and bottom ends for receiving a variable rate type of friction shoe. During rotation and translation of the bolster with respect to the truck sideframe, the outboard friction shoe pocket sidewall is repeatedly impacted by the outer and upper corner of the friction shoe. The impacting causes protuberances to form in the outboard sidewall, but only on the upper portion of the wall. The same sidewall is provided with a relieved section across the entire sidewall upper portion in order to eliminate the impact contact area between the upper portion of the friction shoe and the upper portion of the outboard sidewall. Eliminating the contact area eliminates the formation of protuberances and extends the life of the bolster.

Abstract: The construction of a vibration damping device includes a splined or generally spiral groove formed either in the outer periphery of a damper pin, which is inserted into a damper, or in the inner periphery of a hole formed in the damper for inserting the damper pin therein.

Abstract: The bogie has two side-frames. Each side-frame has an opening in which a respective end of a bolster bar rests upon the side-frame by way of suspension springs. Two wedges, themselves supported by springs and having an oblique face which is thereby pressed against an oblique face of the bolster, consequently assume a friction bearing against a frictional face of the side-frame so as to damp the suspension oscillations. The oblique faces are not only oblique with respect to the vertical, but also with respect to the longitudinal midline of the bogie. The horizontal force to which the wedge is subjected consequently comprises a transverse component which is used to clamp the side-frame between the wedge and a reference face of the bolster.

Abstract: The torsion spring cartridge assembly disclosed herein is adaptable for use in practically any environment where oscillating motion is encountered. The assembly provides axle support for a rotating member as well as spring suspension for the axle. Dampeners can be provided to damp motion in one direction of oscillation or rotation. Serviceability is simplified since the entire assembly is removable for repair or replacement. The spring rate can be quickly and easily adjusted to accommodate environmental changes such as load, road conditions and weather. The torsion bars are protected from overstressing and possible distortion by a torsion limiter.

Abstract: A torsion spring cartridge assembly for supporting an oscillating member, the assembly including a bearing assembly, a torque assembly mounted for rotary motion in said bearing assembly, a counter-torque hub, and a set of torsion bars connecting the torque assembly to the counter-torque hub, the cartridge assembly being adapted to be removably mounted in a support structure with the bearing assembly and counter-torque hub mounted in a fixed relation so that the torque assembly is free to rotate within the limits of the torsion bars. A dampener can be provided to restrict the motion of the torque assembly in one direction of motion.

Abstract: A fluid shock absorber of either the pneumatic or liquid type having a frustoconical threaded bleed plug for varying the shock absorbing capacity of the shock absorber. A shock absorber construction utilizing air or liquid having a piston which is expandable whereby expansion to the associated cylinder wall exerts a frictional resistance proportional to the variation in back pressure resulting from the variable restricted flow past the frustoconical bleed plug. A liquid-type shock absorber having a self-contained chamber and a frustoconical bleed plug arrangement wherein liquid from the cylinder is forced into the chamber through the frustoconical bleed plug arrangement. In certain embodiments the bleed arrangement is located in the cylinder wall, and in another embodiment it is located in the piston head.

Abstract: The strut includes a telescoping load bearing assembly that extends through a composite spring and a frictional damping assembly. The damping assembly includes one, two three or more movable damper wedges that are urged by two wedge rings against a sleeve bearing that normally provides for low friction extension and contraction of the load bearing assembly. In response to application of an axial load on the load bearing assembly, however, the damper wedges press or squeeze the sleeve bearing into gripping engagement with the load bearing assembly, which causes the sleeve bearing to apply a frictional damping force to the load bearing assembly. Elastomer layers interposed between the interactive faces of the damper wedges and the wedge rings are placed in visco-elastic shear in response to movement of the damper wedges and, hence, provide essentially frictionless movement of the damper wedges under such conditions. This enhances the sensitivity of the strut to certain road conditions.

Abstract: A mount for connecting two relative-vibratable objects has two resilient elements and a signal actuated clutch for connecting the objects. The clutch is in parallel with one of the resilient elements and in parallel with the other. A sensor senses the vibrations applied across the mount and actuates the clutch in response thereto to change the transfer function of the mount. Appropriately controlling the engagement/disengagement actuation of the clutch in this way makes it possible to avoid the resonant frequencies of the mount and thus both isolate and damp the vibrations as desired without structural changes to the mount.

Abstract: In a damper for spin-drying washing machines, it is provided, with a view to amplitude-dependent damping behaviour being obtained accompanied with manufacture at a low cost, that a frictional damping unit, which is disposed inside a casing, comprises an at least sectionally bare and elastic frictional damping lining for producing a given frictional damping effect, and at least one stop element which is stationary in relation to the casing and turned towards the at least one frictional damping lining, with the at least one stop element being designed for direct cooperation with the at least one frictional damping lining.