Abstract: An elastomeric mounting comprises a body of elastomeric material having end regions the surfaces which are bonded to respective confronting surfaces of a pair of rigid end members for compression therebetween. A first of the rigid end members (32) extends radially outwardly from a longitudinal compression axis (19) of the mounting to lie beyond the bonded interface (35). The first end member has outwards of the bonded interface an abutment face (34) which is contacted by the elastomeric body when subject to compression loading, and a discontinuity is defined by the first rigid end member whereby the interface and abutment face depart from a wholly co-planar form.

Abstract: A radial bush bearing, in particular for motor vehicles, includes a cylindrical outer sleeve, a central bush core disposed in and spaced from the outer sleeve defining an annular gap therebetween, at least one elastomer body being fixed in and completely circumferentially filling the annular gap, and hollow conduits with given cross sections penetrating at least a portion of the at least one elastomer body. The hollow conduits have Venturi-like constrictions and also have enlargements with the given cross sections following the constrictions.

Abstract: A shock absorber for a bicycle front fork comprises telescopically related inner and outer tubes and an elastomeric spring received within the inner tube and engaged between a lower cap on the inner tube and a preload piston. A through-tube extends concentrically downwardly from an upper cap on the outer tube and is axially coupled to and rotational relative to the outer tube. The preload piston is on the lower end of a rod that is received in the through-tube and is axially adjustable relative to the through-tube to vary the preload of the elastomeric spring. A hydraulic damper composed of a cylinder member received within a lower portion of the inner tube and affixed to the inner tube and a hollow piston telescopically received by the through-tube and affixed to the upper cap includes a controllable bypass for changing the flow of hydraulic liquid between portions of the cylinder chamber on opposite sides of the piston.

Abstract: A torsional vibration damper having a substantially cup-shaped hub ring made from deep drawn sheet metal. The base of the hub ring has at least one orifice for mounting the damper to a machine part subject to torsional vibrations, the hub ring being joined by at least one spring element made of an elastomeric material - in a manner allowing relative rotation - to at least one inertial ring. The base is provided with an annular centering collar, extending in the axial direction, which fits around the outer periphery of the machine part in partial contact. The centering collar and the base are configured integrally and continuously with one another.

Abstract: The invention relates to an elastic suspension for attaching dynamically stressed function parts, consisting of a metal retaining clip attached to a base plate, and a receptacle case that is positioned by way of links of a rubber-elastic material in a swinging manner within a section formed by the base plate and the retaining clip. The retaining clip consists of an elastic metal band that permits a level deformation of the retaining clip. The retaining clip of the elastic metal band no longer functions exclusively as a loss protector, but rather absorbs an essential part of the dynamic stresses itself. The deformation in the horizontal axis, i.e.

Abstract: A shock-absorbing apparatus for use in the body frames of light-weight pedal-powered or motor-powered land or water surface vehicles and sports and exercising equipment including bicycles, mountain bikes, dirt bikes, off-road bikes, all terrain bikes, exercise bikes, motor-bikes, motorcycles, mopeds, scooters, snow-scooters, snow-mobiles, jet-skis and the like. The shock-absorbing apparatus comprises a telescoping assembly including a tube and a compression rod slidably engaged coaxially, and a compression elastomer assembly including an elongated resilient and deformable compression elastomer and rigid multi-function bands. The elastomer is placed coaxially between the tube and the compression rod. Each multi-function band has a cylindrical sidewall defining a hollow chamber for fitting onto the elongated elastomer through press-fit engagement and regulating the elastomer to prevent it from twisting or snaking when it is compressed.

Abstract: A novel elastic bumper assembly for an automotive vehicle or the like, which comprises an elastic bumper member adapted for repetitive cushioning impact, the elastic bumper member being formed of an elastomeric material, which contains imbedded therein a relatively stiff high strength insert member, with the insert member having a fastener device extending outwardly therefrom, and a cup-like holder member adapted to receive and hold one end of the bumper member which has the insert member and fastener protruding therefrom, such that the fastener member protrudes through the holder member and is then securely attached to a supporting position on the automotive vehicle axle or frame.

Abstract: A marine fender is disclosed which protects a vessel and a dock from damage caused by an impact. The fender is in the form of a tube with a substantial thickness, is comprised of polyurethane and has a uniform arrangement of cavities or openings in its outer surface. The cavities are formed by a web of walls and have substantial depth but do not penetrate through the thickness of the tube to the interior. The fender may also be comprised of four layers. The first layer is comprised of a Shore A hardness of between 80 and 90 and is approximately 25 mm thick. The second layer is comprised of a Shore A hardness of between 75-80 and is approximately 50 mm thick. The third layer is comprised of a Shore A hardness of between 55-75 and is approximately 50 mm thick. The fourth layer is comprised of a Shore A hardness of between 80 and 90 and is approximately 25 mm thick.

Abstract: A hanger for suspending a first component from a second elevated component comprising a first body member formed of a thermoplastic elastomer having a first durometer hardness and a tensile strength sufficient to support the first component, and having a pair of spaced openings therein; a second body member formed of a thermoplastic elastomer having a durometer hardness less than the first durometer hardness, disposed within one of the openings of the first body member and being molded integrally therewith and having an opening therein for receiving an attachment element of the second elevated component; and a third body member formed of a thermoplastic elastomer having a durometer hardness less than the first durometer hardness, disposed within the other of the openings of the first body member and being molded integrally therewith and having an opening therein for receiving an attachment element of the first component; the materials of the second and third body member being compatible with the material of t

Abstract: An inside ring (1) and an outside ring (2) are mounted about a common axis (3) and are joined to one another in a rotationally elastic manner by at least one elastic body (4) of elastomeric material. The elastic body (4) is bonded only to one of the rings (1, 2) and is supported in a relatively rotatable manner on the other ring (2, 1) by at least one friction layer (7) to limit the transmittable torque.

Abstract: A vibration isolation mount comprises a frame adapted for attachment to a pport member, a spring device mounted on the frame and adapted for attachment to a protected device, the spring device being movable on the frame to permit movement of the protected device relative to the support member, and a locking mechanism for limiting movement of the spring device on the frame, thereby to limit movement of the protected device relative to the support member.

Abstract: A vibration damping material represents a high vibration damping property (loss factor .eta.) in a plurality of temperature ranges. A viscoelastic material layer between two constraining plates or between a constraining plate and a vibrating body is in the form of a bubble-contained adhesive layer containing bubbles. Near the glass transitional point (Tg), the bubble-contained adhesive layer is changed from a glass status to a rubber status and represents a first peak of the loss factor. In a temperature range above Tg, a second peak of the loss factor appears by virtue of consumption of vibration energy caused by friction at the interface between air bubbles and polymer attendant to expansion and contraction. That is, peaks of the loss factor appear at two temperatures, and the temperature dependency is decreased.

Abstract: A vehicle dual axle suspension comprising a force transmitting structure connected at one end thereof to a forward axle of the vehicle, and at the opposite end thereof to the rear axle, and a central resilient bushing for fastening the force transmitting structure to a cross member of the frame of the vehicle at the mid-point of the force transmitting structure. In one embodiment, the force transmitting structure is a spring plate having a relatively small thickness extending in the vertical direction of the vehicle and having a relatively large width extending in the transverse direction with respect to the vehicle. Other embodiments include resilient bars, and rigid arms pivotally attached to one another. The forward and rear axles are permitted to move substantially independently of one another in the vertical direction as necessary to provide a soft ride when traveling down the highway.

Abstract: To overcome problems with the pistons of an energy cell rotating and becoming misaligned with one another in response to the forces exerted on the energy cell by a riser tensioner system, a two-piece elastomeric spring is disposed about each piston to create an elastomeric strut. Each piece of the spring is composed of a plurality of elastomeric layers separated by relatively inelastic spacers. These springs facilitate the longitudinally flexing of the elastomeric strut while substantially preventing rotation and misalignment in the radial direction.

Abstract: An elastic joint with high filtering capacity and axial gap controlled by incorporated stops includes an elastic ring disposed between internal and external coaxial rigid elements, with an additional elastomer layer disposed at each end of the joint between an axial shoulder of the internal armature casing and a turned in edge of the external ring. Thus, a stop function in an axial direction, which stop function is due to the interaction of the shoulder, the turned in edge, and the elastomer disposed therebetween, produces a filtering rigidity from two to five times lower than the radial rigidity in an equilibrium position, which axial rigidity becomes progressively higher than the radial rigidity beyond the filtering zone when a significant axial force is applied to the joint. Such a joint can be used for motor vehicle suspension arms and in antivibration insulation of mobile or stationary equipment.

Abstract: A structure for a bushing disposed between inner and outer cylindrical members arranged concentrically to each other, comprises an elastical member fitted into the inner periphery of the outer cylindrical member, a substantially cylindrical slidable member disposed between the inner cylindrical member and the elastical member, and a projecting lip portion formed on at least one of the outer circumferential surface of the inner cylindrical member and the inner circumferential surface of the slidable member, such that the projecting portion keeps in contact with the opposing circumferential surface with a small contact area and defines a slight aperture between the outer periphery of the inner cylindrical member and the inner periphery of the slidable member.

Abstract: A transmission mount that consists of a rubber core incorporating a top plate for attachment to the transmission housing and a bottom plate for attachment to the supporting cross-arm in the frame of the vehicle. The top plate features two slots designed to match the geometry of the mounting bolts of at least 93 different transmissions; the bottom plate features three threaded apertures designed to accommodate the mounting bolts in the standard cross-arms used to support them; and the overall shape of the mount is designed to fit within the space allowed by the particular structure of each transmission/cross-arm assembly.

Abstract: A rubber block is shaped as a segment of a circular washer wherein opposite ends of the segment are surfaces against which torsional forces are applied to the blocks. A plurality of hollow ducts extend through the block and all the ducts are parallel to each other and essentially perpendicular to a main plane of the block. The main plane is perpendicular to the load bearing surfaces. The hollow ducts are intersected by cavities having cross-sectional areas larger than the corresponding cross-sectional areas of the ducts intersecting these cavities.

Abstract: A resilient, elastomeric jounce bumper is described as having a cylindrical head which protrudes from a larger diameter cylindrical body which has a cylindrical extension which surrounds at least a portion of the head in spaced radial relation, such that an annular void is formed around the head in the area of the body extension. The outer, free annular end of the body extension curves inwardly towards the head and terminates in close proximity to the head to prevent harmful particulate matter from entering the annular void. The body extension is provided with at least one, circular metal ring which is embedded in the extension adjacent the curved end of the extension to restrict radial expansion of the head, when the bumper is place under a heavy load.

Abstract: A component having a virtually rectangular force-displacement characteristic line and comprising an elongated polymer foam block (1) of rectangular cross-section having sides a and b and having a recess (2) of width d and depth c extending along the entire length of the block on one side, said dimensions satisfying certain equations.

Abstract: A method for varying the spring rigidity of an elastomer engine mount, such as for motor vehicles, includes bringing one of two at least intermittently simultaneously loadable parallel-connected spring bodies into continuous engagement with supports and bringing the other of the two spring bodies into intermittent contact with supports as a function of predetermined operating parameters, for absorbing induced forces in parallel with the two spring bodies. The other spring is connected in parallel with a force brought to bear separately from the outside for causing it to contact its supports. An elastic engine mount for motor vehicles includes a hollow-cylindrical spring body and a solid-cylindrical spring body disposed concentrically relative to one another between an engine mount plate and a support plate to be fixed to a vehicle body.

Abstract: A shock absorber mount is described as having two pressed fittings which are mounted in end-to-end relationship. Each insert has two rigid, radially spaced cylindrical sleeves which are separated by a resilient rubber insert. The inner sleeve of the vertically lowermost fitting, when the fittings are properly mounted on, for example, an automobile frame, extends upwardly beyond the associated outer sleeve and is coated with rubber to enter a hollow bore formed by the inner sleeve of the upper fitting. The extension allows the lower fitting to initially absorb an upwardly applied axial force until it moves into shock absorbing relation with the upper fitting. The extension also acts to bolster the radial shock absorbing characteristics of the upper fitting to provide improved shock absorbing characteristics of the mount; namely, low axial shock absorption and high radial shock absorption.

Abstract: A cylindrical elastic mount with a vibration damper, including radially spaced-apart inner and outer sleeves, an elastic body interposed between the inner and outer sleeves so as to elastically connct the two sleeves, and a generally cylindrical rigid split member disposed between the inner and outer sleeves and elasticallly supported by the two sleeves through the elastic body, such that the elastic body is divided by the rigid split member into radially inner and outer portions. The rigid split member and the elastic body cooperate with each other to provide the vibration damper. The generally cylindrical rigid split member consists of a plurality of rigid segments which are embedded in the elastic body such that adjacent segments of the plurality of rigid segments abut on each other at circumferentially opposed end faces thereof so as to assume a generally cylindrical shape.

Abstract: A jounce bumper is described as being formed of resilient eleastomeric material. The bumper comprises a cylindrical head protruding from a hollow cylindrical body which terminates at an outstanding annular flange. An annular extension of the body extends from the body in spaced relation around the head to form an annular void around the head. The body extension has a free marginal edge which curves inwardly towards the head and terminates in close proximity to the head to prevent particulate matter from entering the void which is sized to have a volume which is correlated to the displacement of the head when a predetermined load is applied against the head. Voids are placed in the head and body to provide the deflection control characteristics desired. A rigid metal sleeve is encased in the extension of the body to prevent radial displacement of the head beyond filling of the void around the head.

Abstract: A method of manufacturing a fluid-filled elastic mount which includes an electric body flexibly connecting an inner and an outer sleeve, means for defining a pressure-receiving chamber and an equilibrium chamber which are filled with a non-compressible fluid, and means for defining an orifice passage for fluid connection between the two chambers, the equilibrium chamber being defined partially by a rigid member and partially by a flexible diaphragm which permits volumetric changes of he equilibrium chamber.

Abstract: A vehicle engine suspension for a transverse engine has at least three engine cushions (6, 7, 8) which support the engine (3) and take up vertical loads exerted by the engine. A first torque brace (12) extends transversely to the main axis of the engine and is pivotally connected between the engine and the vehicle chassis or vehicle body. A second torque brace (21) extends transversely to the main axis of the engine (3) and is pivotally connected between the engine and the vehicle chassis or vehicle body. This second brace is located at a level beneath the first brace (12) and lies in the same upright plane as that first brace. This upright plane is disposed at right angles to a horizontal plane (H) which is the nearest common plane of the engine cushions (6, 7, 8).

Abstract: A suspension assembly for vehicles has an elastomeric spring contained in a rigid, telescoping housing and a torque arm. The spring resists and transmits vertical forces, the torque arm resists and transmits longitudinal forces and the rigid housing resists and transmits transverse or side forces.

Abstract: In order to obtain a particularly soft spring characteristic the rubber spring element consisting of relatively hard material having good mechanical strength is traversed by cavities and hollow channels, which intersect said cavities, in such a manner that the area of the inside cross-section of the hollow channels amounts to at least 25% of the area of the largest inside cross-section of the nearest cavity traversed by this hollow channel, while the hollow channels may directly intersect in the rubber matrix.

Abstract: A resilient alveolar block is provided for filtering vibrations, intended particularly to support an engine-gear box unit in a vehicle, wherein, in a rubber or elastomer block (1) cells (4, 5) are provided capable of communicating with the outside through passages for the moulding cores (respectively 2 and 3), the purpose of these cells being to obtain a very low constant stiffness of the block. The cells and their respective passages are distributed in identical superimposed layers, with two adjacent layers being offset by 90.degree. through rotation about the axis of the block so that, seen in projection, the spherical cells may be narrowly interleaved.

Abstract: A fluid-filled mount includes a body made of a resilient material and having a structural member supporting region on one end and a vibrating member supporting region on the opposite end. The body has a main fluid chamber defined therein between the structural member and vibrating member supporting regions, at least one auxiliary fluid chamber defined therein laterally of the main fluid chamber, and an orifice communicating between the main and auxiliary fluid chambers. A fluid is filled in the main fluid chamber, the auxiliary fluid chamber, and the orifice.

Abstract: A vibration absorbing mechanism for a compressor in an automotive air conditioning system is disclosed which comprises a mass which includes a first penetration hole; first and second bushings, each of said bushings including an inner cylinder which is provided with a second penetration hole, an outer cylinder and an elastic member which is disposed and compressed between the outer surface of the inner cylinder and the inner surface of the outer cylinder; and a screw bolt. The first and second bushings are disposed at both ends of the mass to align the first penetration hole with the second penetration holes. The screw bolt passes through the first penetration hole and each of the second penetration holes and then is fastened by a nut. According to the above mechanism, vibration which the compressor receives from an engine through a mounting bracket can be reduced. Therefore, durability and silentness of the compressor also can be improved.

Abstract: An adjustable device for vibration damping and leveling of machines consisting of an elastic element with a constant thickness, with notches which facilitate its separation in order to obtain the correct support surface and so that the deformation in all the supports is constant, maintaining the horizontal leveling of the machine and good absorption of vibrations. The elastic elements include cavities distributed along the length thereof, in which elastic inserts adjusted to the geometry thereof can be housed in order to appropriately increase the total contact surface and resistance to deformation of the device.

Abstract: A resilient motor mount suitable for use as a vibrational insulating motor mount. The mount connects a motor to a support structure by using a support fixture and a motor stud separated by a flexible member. A plurality of portions of the flexible member surround the support fixture and motor stud to lessen vibrational transfer from the motor to the structure fixture and to lessen metal fatigue caused by metal to metal contact.

Abstract: Resiliently compliant swivel bearings have particular resilience in one radial direction are used in vehicle construction, for example, for link mounting. An elastomeric spring element is firmly adhered between inner and outer bearing elements. Two diametrically opposite, elongate recesses passing axially through a space between the two bearing elements are molded into the springing element. Two radial webs remaining due to these molded recessed support upright forces, with the maximum radial resilience made possible by the recesses being selected so that the radial webs are not overloaded by shear stress. The outer bearing element is connected in resiliently compliant fashion, in each case adjacent to one of the elongate recesses of the springing element, to a carrier which can be secured on a vehicle part in order to impart to the inner and outer bearing elements a radial resilience greater than the maximum possible radial deflection of the inner bearing element relative to the outer bearing element.

Abstract: In a spring element according to the present invention, all channels formed in the elastomer block are mutually parallel and all cavities formed in the elastomer block, too, which are intersected by said channels, are arranged like a cubic-free-centered sphere packing in reverse order. Comprising a good mechanical lateral rigidity, a spring element according to the present invention shows exceptionally good acoustic insulating and damping facilities.

Abstract: A process of using compositions comprising certain thermoplastic elastomeric polymers for damping and damping compositions comprising soft thermoset polymer containing microscopically discrete segments of said thermoplastic elastomeric polymers.

Abstract: A device for cushioning impact loads is described as employing unique rolling rubber rings for compressively engaging adjacent conical surfaces of the device as the surfaces come closer together. The ring has a pair of longer toroidal segments which are connected by a pair of shorter toroidal segments which have cross-sections which are substantially smaller than those of the longer segments, such that the ring can be designed to resist different lateral forces imparted to the ring.

Abstract: The invention pertains to a body-side mounting for suspension strut (1, 2, 3) or spring shock absorber of a motor vehicle, with a rubber mount (8) effective between the body and suspension strut, predominantly loaded in shear, which is placed between a mount receptacle (7) formed into the body or parts thereof and a spacer (6) joined to the suspension strut, with the mount receptacle and spacer being adjusted to the dimensions of the rubber mount and receiving the latter in the inward spring deflection direction and radially thereto.The object of the present invention is to create a body-side mounting of the aforesaid type in which the rubber mount itself, when radial forces are introduced, for example, as a result of full steering lock, guarantees a largely constant spring rate and therefore stable steering response.

Abstract: A trailng arm modular axle suspension unit including a hanger for attachment to a vehicle frame and having spaced sides and fore and aft and central portions, a trailing arm having sides and fore and aft and central portions, a rubber bushing mounting the fore portion of the trailing arm on the fore portion of the hanger, the aft portion of the trailing arm extending beyond the central portion of the hanger, a U-bolt construction for mounting an axle on the aft portion of the trailing arm which extends beyond the central portion of the hanger, a shock absorber mounted between the aft portion of the trailing arm and the aft portion of the hanger, and rubber springs secured between the opposite sides of the central portion of the trailing arm and the opposite sides of the central portion of the hanger.

Abstract: An upper articulated connecting device for connection between a spring-shock absorber assembly and the chassis of a motor vehicle, comprising: a frame (b 1,2,3) having a connecting piece (3) for securing the upper end of the shock absorber and girdled by a swivel joint (4); a frame (5) having on its lower face a lining (6) supporting the suspension spring and closed at the top by a cover (8); a low rigidity ring (11), secured between the lower portion of the swivel joint (4) and an annular bearing surface (13) integral with the frame (5); a high rigidity girdle whose external peripheral surface extends at a short distance from the internal peripheral surface of the cover, this girdle having two axial abutment surfaces, one adapted to bear against the bottom of the cover, and the other against a peripheral flange of the annular bearing surface.

Abstract: A load bearing connective damper for service in tensile, compression, and torsion as a shock and vibration isolation mounting device. Dampers are constructed using a multidimensionally braided textile shape and a viscoelastic material disposed in the interstrand spaces of the textile shape.

Abstract: A variable strength spring includes a tubular body, at whose inner surface is coaxially provided a concave contact seat, a ring made of elastomeric material rigidly engaged in the tubular body and a connection tang rigidly engaged in the elastic ring. The elastic ring has a radial groove that defines, on the longitudinal length of the ring, a first portion rigidly engaged inside the tubular body opposite the contact seat, and a second portion slidably engaged in the tubular body. On the outer circumferential end of the second portion is situated a rigid rabbet edge positioned opposite to a stopping seat inside the tubular body.

Abstract: A suspension unit in agricultural rollers, for elastically connecting the frame of the roller to a roller set including a shaft and a plurality of roller rings. An outer axially extending housing (4) is connected to the frame (2) of the roller (1) with the aid of an attachment (3). An inner mounting (5) carries the end of the roller set shaft. On either side of the inner mounting (5) there are axialy arranged horizontal abutments (6), of elastic material, e.g. rubber, connecting the housing (4) to the mounting (5). Through openings (7, 8) are formed at the upper side (7) and under side (8) of the inner mounting. There is thus obtained low stiffness vertically, and the inner mounting (5) is allowed large movement vertically, whereby the roller set is given great adaptability to ground irregularities. By having large stiffness in the horizontal direction, the roller set is only allowed small movement in the travelling direction of the roller.

Abstract: A motor vehicle engine mount has two inner bodies which are directed toward each other and form a gap therebetween. Each of these bodies is connected to the interior of a frame via rubber webs and a connecting piece rigidly attached to one of the inner bodies is held in a sliding manner on the other inner body via a slot and a locking screw in the position which becomes established in the loaded resting state. And a release member is added between the screw and such other inner body that is able to freely move at small vibration amplitudes.

Abstract: An improved fifth wheel structure for over the road tractors wherein a resilient elastomer pad placed between a fifth wheel pocket surface and a bearing surface includes non-extrudable end members to prevent extrusion of the pad from the pocket and wherein the pocket surface and corresponding shoe surface may also be undulated to better retain the elastomer pad.

Abstract: An elastic bearing assembly for a driving assembly of a motor vehicle with at least engine and transmission side bearing arrangements, for holding the driving assembly with dampening of vibrations. In special arrangement, the motor or engine side bearings as well as the transmission side bearings exhibit different spring stiffness which are configured with respect to one another that the vertical vibration movements of the assembly are coupled with a rotational vibration movement about an assembly cross axis. Further the bearings are so arranged and configured that all other possible vibration or movement forms of vertical and rotational movement are substantially decoupled. During dampening of vibrations of the assembly caused by an external disturbance, respectfully all in and out spring movements of the harder bearings are hindered by an overlapping second higher frequency movement. A bearing arrangement of this type results in an advantageous quick dampening of vibrations.

Abstract: A molecular joint for axle struts, connecting rods, and similar parts of motor vehicles comprising a substantially cylindrical housing having a joint pivot lying approximately in the middle axis of the housing, and a sleeve-like joint body of an elastomer material, which is arranged between the housing and the joint pivot and adheres to both, with a prestressing. On the inner surface of the housing, there is provided a material recess in a central or middle zone, which reduces the prestress of the sleeve-like joint body in this zone an thereby produces a progressive characteristic of the molecular joint in the direction of loading.

Abstract: An elastic mounting molded from an elastomer compound bonded to two fastening frames, in particular for antivibration isolation of vehicle suspension elements, where the deformation rigidity is blocked in one direction by the tension of a metal cable embedded in the elastomer.

Abstract: A fluid filled elastic bushing, including a tubular inner sleeve to which a shaft member is fixed, and a tubular outer sleeve which is secured to a support structure and which is disposed radially outwardly of the inner sleeve so as to form an annular space between the outer and inner circumferential surfaces of the inner and outer sleeves, and to form a cylindrical space between opposed bottom walls at the closed ends of the two sleeves. The bushing further includes a cylindrical elastic connecting member which fluid tightly fills a portion of the annular space adjacent to the open ends of the two sleeves, and thereby cooperates with the sleeves to define a fluid chamber which includes a remaining portion of the annular space and the cylindrical space and which is filled with the fluid.

Abstract: A vibration insulating rubber having an improved balance between its loss tangent and dynamic-to-static modulus ratio is prepared by molding and curing a rubber compound comprising as a rubber component a modified rubbery polymer obtained by reacting (1) a rubbery polymer having at least one metal selected from alkali metals and alkaline earth metals bonded to its molecular chain with (2) at least one compound selected from organic compounds having a bond of the formula ##STR1## wherein X represents an oxygen or sulfur atom, in the molecule, benzophenones having at least one of unsubstituted and substituted amino groups, and thiobenzophenones having at least one of unsubstituted or substituted amino groups.