Abstract: A vibration damping rubber bushing including: an inner cylindrical member; a main rubber elastic body bonded to an outer circumferential face of the inner cylindrical member; a plurality of anti-slip projections provided on at least one of axial end faces of the inner cylindrical member that project axially outward from the axial end face and extend with ribbed shape in a diametrical direction on the axial end face to produce a spokewise pattern overall; and an annular water barrier projection provided on a diametrical medial section of the at least one of the axial end faces of the inner cylindrical member, projecting axially outwardly and extending circumferentially, with the anti-slip projections being disposed to both radially inner side and radially outer side of the annular water barrier projection.

Abstract: A fluid filled type vibration damping device includes a fluid chamber divided by a partition member into a pressure-receiving chamber and an equilibrium chamber. The partition member has a first and a second member axially superposed together. A locking projection is formed on one of the first member or the second member and a locking hole is formed on an other, with the locking projection being inserted through the locking hole to effect locking so as to constitute a locking mechanism for holding the first and second member in a superposed state. Outer circumferential faces of the first member and the second member held in the superposed state by the locking mechanism are fastened fitting into a second mounting member via a seal rubber layer, and the first or second member having the locking hole includes a cover portion that covers an opening of the locking hole from a side thereof to which the locking projection projects.

Abstract: A cylindrical fluid-filled elastic mount which has a structure that avoids or mitigates a deterioration of damping effect, when an outer cylindrical member is subjected to a diameter-reducing operation. A cylindrical fluid-filled elastic mount including; a communication groove connecting a pair of pockets in the circumferential direction formed in an elastic body; fluid chambers provided by the corresponding pockets; an orifice member having a trough-form protrusion in which both-side wall portions provided at an end of the orifice groove are formed by an elastic material. The trough-form protrusion is inserted in the communication groove. At least one hollow groove is provided along the communication groove where the trough-form protrusion is inserted, and the hollow groove is formed longer in the circumferential direction than a length of a protrusion part of the trough-form protrusion.

Abstract: A stabilizer bar assembly for a suspension arrangement in a vehicle has a first diameter D1. The stabilizer bar assembly includes a first housing with a resilient first bushing and a second housing with a resilient second bushing allowing pivotal movement of the stabilizer bar about the first and second housings. The stabilizer bar include a receiving arrangement for the first bushing, the receiving arrangement including a pair of bulges each having at their apexes a second diameter D2 exceeding the first diameter D1. The receiving arrangement includes two peripheral surfaces inclining towards a midsection with a decreasing cross-sectional area from the apex of the bulges to the midsection. The first bushing and the second bushing are the same. A stabilizer bar with or without the receiving means can be mounted with the same bushings.

Abstract: A radial cushioning apparatus including an inner member, an outer member, and an elastomer. The inner member accommodates a shaft passing endwise therethrough. The outer member is arranged in radially spaced relation from the inner member. The elastomer is secured to the inner and outer members and defines a plurality of collapsible spaces into which elastomer material can flex thereby cushioning radial deflection of the shaft.

Abstract: The invention provides for a radially flexible bushing, comprising an outer annular element, an inner rigid element surrounded by the outer element, an elastomer body, which adherently attaches the inner rigid element and the outer element. The elastomer body comprises spaced-apart arms extending radially from the inner rigid element to the outer element. It further comprises at least one radial stop for limiting the radial displacement of the inner rigid element. The radial stop, which is positioned on the outer element between the arms, comprises an arch having extremities joined to the outer element and a top oriented towards the rigid element. The arch defines together with the outer element a tubular cavity.

Abstract: A fluid-filled cylindrical vibration-damping device including a main rubber elastic body elastically connecting an inner shaft member and an outer cylindrical member with each other. A pair of first fluid chambers are formed on diametrically opposite sides of the inner shaft member and a pair of second fluid chambers are formed being diametrically opposed to each other such that an opposing direction of the second fluid chambers is orthogonal to an opposing direction of the first fluid chambers. Each partition wall that partitions the first fluid chamber and the second fluid chamber extends in a direction in more proximity to the opposing direction of the first fluid chambers than to the opposing direction of the second fluid chambers so that spring rigidity as measured in the opposing direction of the first fluid chambers is set greater than spring rigidity as measured in the opposing direction of the second fluid chambers.

Abstract: A damping device that is capable of decreasing torsional vibration may include a driving element and a driven element spaced apart from each other, a receiving groove being shaped as an oval formed along a circular path with a given radius about an axis thereof and formed at the driving element, a carrier which is disposed at the driven element and disposed inside the receiving groove so as to contact an inner part thereof, and a magnetic substance disposed at the carrier, and wherein both sides of the receiving groove are provided with a repulsive force on the magnetic substance in a direction of the center of the receiving groove.

Abstract: A subframe bearing and method of forming same is provided with a subframe (12) having a main section between a first engagement flange (30) and a second engagement flange (32), an inner tube (2), an outer tube (4) and an elastomer bushing (6), as well as a stop plate (16). The elastomer bushing is vulcanized with the inner tube (2) and the outer tube (4) defining a bushing subassembly. The outer tube has a main section (42), an angled transition portion (44) and a step portion (40). The outer tube continues axially from the main section (42) to a stop flange (20). The elastomer bushing (6) has a bulged outer surface portion (36) extending continuously and uninterrupted outwardly of the angled transition portion (44) and extending continuously and uninterrupted outwardly of the step portion (40).

Abstract: The invention relates to a sleeve, in particular an outer sleeve assembly for an elastomer bearing (3), with a first, outer sleeve part (1) forming a slit (S1) being arranged coaxially with a second, inner sleeve part (2), which likewise comprises a slit (S2). The outer sleeve part (1) is, on its inner peripheral surface (I1), and the inner sleeve part (2) is, on its outer peripheral surface (O2), provided with a bonding-agent layer (HS1, HS2). The slits (S1, S2) of the sleeve parts (1, 2) are staggered in relation to one another.

Abstract: An elastomeric bush bearing, with hydraulic damping, comprises a metallic inner part (1), an elastomeric bearing element (2) encompassing the inner part (1) with a cage (3) for reinforcing the bearing element (2) vulcanized thereto. At least two chambers (5), for accommodating a fluid damping medium, are separated from one another by partitions (8), constructed between the bearing element (2), adhesively bonded to the inner part (1) by the vulcanization, but are mutually connected by a damping medium channel (7). A prestressing is applied to the elastomer of the bearing element (2). However, the prestressing is not applied over the bearing shell (4), but instead over the cage (3). Calibration takes places thus by a pressure force exerted on the cage, before assembly of the bearing element (2) in the outer shell (4), which is a deviation from the state of the art.

Abstract: A damping device for a hatch in a military vehicle used during its closing and opening, said hatch being integral with hinges hinged with respect to an interface, wherein said device comprises a tubular body integral with the hinges and hinged between two bearings integral with the interface, said body enclosing two fixed damping means between which a rod is positioned, said rod being mobile in translation to activate one of the damping means during the opening of the hatch and the other damping means during the closing of the hatch.

Abstract: The invention relates to a stop element (1) for a hydraulic bearing and a hydraulic bushing equipped therewith. The proposed hydraulic stop element (1) with a stop body (2, 2?) and a stop surface (3) is implemented as a piston-cylinder-assembly with an elastomeric bearing (12) with at least two work chambers for a fluidic damping means. The cylinder (4) of this piston-cylinder-assembly is inserted into the solid material surrounding the outer surface of a metallic element of the elastomeric support (12) which delimits the corresponding work chamber (16, 16?) of the elastomeric bearing (12) perpendicular to the main load direction (r). A piston (2, 2?) which forms the stop body with a stop surface (3) is movably guided in the cylinder (4) in the main load direction (r) of the elastomeric bearing.

Abstract: A vibration damping system includes a laminated body (3) formed by alternately laminating rigid hard plates (4) and viscoelastic soft plates (5), and pair of shoe plates (1, 2) at both ends in the laminating direction of the laminated body (3), to form a vibration damping body (6). The show plates (1, 2) are connected to each other by a displacement restriction member (7), so as to applying a pre-compression to the laminated body. The vibration damping body (6) is divided into a plurality of segments (3A, 3B, 3C) in the laminating direction, for allowing the vibration-proof main body (6) to be separated and displaced at the parting faces (8), without causing an excessive tensile force in the vibration damping system, even if the displacement restriction member (7) has worn to degrade the pre-compression function and a tensile force is applied due to a prying deformation.

Abstract: An engine mount structure includes: an engine bracket 1 mounted to an engine; and an anti-vibration device 2 having an outer tube 7 fixed to a vehicle body, an inner tube 6 to which a front end portion of the engine bracket is inserted and fitted, and a rubber elastic body 8 interposed between the outer tube and the inner tube, wherein an engine bracket insertion hole 9 provided to the inner tube is offset from the center L of a mounting portion of the inner tube mounted to the rubber elastic body, toward the engine bracket. Accordingly, the bracket extending from the engine is allowed to have a natural frequency departing as much as possible from a natural frequency of the engine, and simultaneously, a reduction in weight can be achieved.

Abstract: A drive unit in a motor vehicle is mounted with two elastic motor mounts, of which each in each case couples an engine support, connected rigidly to the drive unit, elastically to a body structure of the motor vehicle, and with a torque support which is arranged above the two motor mounts transversely with respect to the vehicle longitudinal axis and which is coupled at one end to the drive unit and is coupled at another end to the body structure and is configured such that the two ends are connected, damped elastically, to one another. There is also provided a damping support arranged at a lower level than the torque support transversely with respect to the vehicle longitudinal axis and which is coupled at one end to the drive unit and is coupled at another end to the body structure. The damping support is configured such that transverse vibrations of the drive unit are damped.

Abstract: An elastomeric isolator has an elastomeric body which defines a void extending into the elastomeric body from one side and a void extending into the elastomeric body from the opposite side. One member for attaching the elastomeric body to a component is located inside of the two voids and another member for attaching the elastomeric body to a component is located outside of the two voids. The two voids overlap a specified distance to determine the stresses and stiffness for the isolator.

Abstract: The liquid seal type fluid-filled mount comprises a cup-shaped housing 1 having a flange 1A provided with a mounting hole; a stud 3 disposed along a central axis of the cup-shaped housing so as to be positioned in a central opening of a fixed damping unit; a flexible seal cap 7 sealing fluid-tight between the upper end of the stud and the cup-shaped housing; a high viscosity liquid 2 for being filled in a chamber formed by the cup-shaped housing 1 and the flexible seal cap 7; a movable damping plate 4 mounted to a lower end of the stud 3; a fixed damping unit 10 being fixed between the flexible seal cap 7 and the movable damping plate 4 and placed in the high viscosity fluid; and a spring 13 disposed between a bottom of the cup-shaped housing 1 and the movable damping plate 4.

Abstract: An intermediate cylinder 18 is interposed between an inner cylinder 12 and an outer cylinder 14, and the inner cylinder is formed with a first bulging portion 20 of a spherical zone shape whereas the intermediate cylinder is formed with a second bulging portion 22 of a spherical zone shape for enclosing the first bulging portion. The inner circumference of the second bulging portion is formed into a first spherical recess 23 corresponding to a first spherical bulge 21 of the first bulging portion, and the inner circumference portion of the outer cylinder 14 enclosing the second bulging portion is formed into a second spherical recess 25 corresponding to a second spherical bulge 24 of the outer circumference of the second bulging portion.

Abstract: A liquid filled type vibration isolator which can reduce generation of abnormal noise without lowering vibration isolating capability includes a first attachment member 1, a second attachment member 2, a vibration isolating base 3, a diaphragm 9, a partitioning member 12, and an orifice 25. The partitioning member 12 has an annular orifice forming member 16 provided inside of the second attachment member, a rubber wall 15 bonded to an inner circumferential surface 16N of the orifice forming member 16 by vulcanization to close the inside of the inner circumferential surface 16N, and a pair of partitioning plates 17 and 18 between which the rubber wall is sandwiched in an axial direction G. The one partitioning plate 18 constitutes a part of a chamber wall of a first liquid chamber 11A, and the other partitioning plate 17 constitutes a part of a chamber wall of a second liquid chamber 11B.

Abstract: A mount has an inner metal and an outer metal with an elastomeric bushing disposed between them. The elastomeric bushing includes a first pair of interconnected passages to control the damping rate during axial motion and a second, separate pair of interconnected passages to control the damping rate during motion orthogonal to the axial direction.

Abstract: To decrease dimensions in the axial direction by dispensing with a stopper while making the control of a value of spring constant easy in the axial direction of a sub-frame mount and in the direction meeting at right angles therewith, an inner cylinder 3 is arranged inside of an outer cylinder which is formed in a substantially cylindrical shape by having a pair of half bodies arranged in an opposed relationship, and a vibration isolating rubber is adapted to connect between the outer cylinder and the inner cylinder. Slits are formed on side walls of the vibration isolating rubber along slits dividing the outer cylinder. Projecting portions are provided on the inner peripheral wall of the outer cylinder to project toward the inner cylinder. The outer cylinder and tips are formed concentrically and a radius of curvature R1 of the inner peripheral wall of the outer cylinder is smaller than a radius of curvature R3 of the opposed outer peripheral wall of the inner cylinder.

Abstract: A fluid filled cylindrical vibration damping device having a main rubber elastic body elastically connecting an inner shaft member and an intermediate cylindrical member, wherein base wall portions of either of a pair of pocket portions are constituted by the main rubber elastic body to actively rise opposing positive/negative pressure fluctuations in a pair of fluid chambers at times of vibration input across the inner shaft member and the outer cylindrical member; a low-frequency orifice passage and a high-frequency orifice passage are provided; and the high-frequency orifice passage is provided in an aperture section thereof leading to at least one of the pair of fluid chambers with a moveable film adapted to limit fluid flow through the high-frequency orifice passage on the basis of displacement and/or deformation thereof.

Abstract: A fluid filled type cylindrical vibration damping device, wherein a circumferential end of a stopper member is formed as a mating element smaller in diameter than a circumferentially center section of the stopper member, and is juxtaposed against and supported on a bottom face of a mating groove in a communication passage, to form the communication passage along an entire area between diametrically opposed faces of the mating element and an outer tubular member. A cutout portion is formed extending in a circumferential direction from a circumferential end in a widthwise medial section of the mating element, with the communication passage opening into and communicating with a first fluid chamber at a distal end section of the cutout portion, and at two widthwise side sections of the mating element, respectively, thereby defining an orifice passage connecting the first fluid chamber with a second fluid chamber.

Abstract: A hydraulic mount has an upper support member and a lower support member. An upper elastomeric spring and a lower elastomeric spring are disposed between the upper support member and the lower support member to define an upper fluid chamber and a lower fluid chamber. A channel extends between the upper and lower chambers. During compression and extension of the hydraulic mount, fluid transfers between the upper and lower chamber to provide a damping force for the hydraulic mount.

Abstract: A hydraulic mount has an upper support member and a lower support member. An upper elastomeric spring and a lower elastomeric spring are disposed between the upper support member and the lower support member to define an upper fluid chamber and a lower fluid chamber. A channel extends between the upper and lower chambers. During compression and extension of the hydraulic mount, fluid transfers between the upper and lower chamber to provide a damping force for the hydraulic mount.

Abstract: A movable data center is disclosed that comprises a portable container in which an operable computer system is assembled. A data link, power supply link and cooling system are provided through ports on the exterior of the container. The computer system is assembled to a rack that is secured to the container with a shock absorbing mechanism.

Abstract: A mount has a housing and a mount core. An elastomer spring supports the mount core on a housing and a receiving part is vulcanized into the elastomer spring. The receiving part has a receiving opening for the mount core. As the mount core is inserted, a preload is applied to the elastomer spring. The receiving part has at least one first core guide and a second core guide, between which the mount core is held. The receiving part also has a web which connects the core guides to one another in a first state and which is removed before or during the insertion of the mount core. The production of a mount of this type is simplified in this way.

Abstract: A variable compliance bushing including means to selectively vary the stiffness of the connection between the parts joined by the bushing and especially suitable in vehicle suspension systems where the stiffness of the connection can be varied depending on road conditions or the like to provide better handling and rider comfort.

Abstract: The invention relates to a stop element (1) for a hydraulic bearing and a hydraulic bushing equipped therewith. The proposed hydraulic stop element (1) with a stop body (2, 2?) and a stop surface (3) is implemented as a piston-cylinder-assembly with an elastomeric bearing (12) with at least two work chambers for a fluidic damping means. The cylinder (4) of this piston-cylinder-assembly is inserted into the solid material surrounding the outer surface of a metallic element of the elastomeric support (12) which delimits the corresponding work chamber (16, 16?) of the elastomeric bearing (12) perpendicular to the main load direction (r). A piston (2, 2?) which forms the stop body with a stop surface (3) is movably guided in the cylinder (4) in the main load direction (r) of the elastomeric bearing.

Abstract: The invention relates to a hydroelastic joint that is used to assemble two pieces. The inventive joint comprises an external reinforcement (1) and an internal reinforcement (3), each having a longitudinal axis, and one of which is disposed around the other. Moreover, said joint comprises a first assembly (5) forming a hydroelasctic spring which is disposed between said reinforcements. The aforementioned first assembly comprises a first elastically-deformable element (6) which is shaped in such a way as to define, between the reinforcements, at least one sealed volume (9) that contains a damping fluid (8). A second elastically-deformable element (24) is disposed between the first assembly and the first of said external and internal reinforcements. The invention is characterized in that the second elastically-deformable element (24) is provided with a longitudinal dimension which is smaller than the corresponding longitudinal dimension of the first elastically-deformable element (6).

Abstract: A limit stop with an elastomer resilient element, which is to be secured on a door or lid and/or on an opposing stationary vehicle section for damping forces generated when the door or lid strikes stationary chassis parts of a motor vehicle. The limit stop includes an additional damping section disposed adjacent to and cooperating with the elastic resilient element in a spring deflection direction of the resilient element. The damping section comprises at least two chambers filled with a fluid and a nozzle plate arranged between the chambers with at least one channel extending through the nozzle plate and connecting the chambers. The fluid is displaced from one of the chambers into the other chamber during a spring deflection of the elastomer resilient element, thereby producing a pressure force which is caused by the buildup in pressure when the volume of one of the chambers decreases and augments the return force of the resilient element.

Abstract: A vibration damping device including: a main rubber elastic body connecting a first and a second mounting members; a fluid-filled unit having a tubular housing closed off by a rubber elastic wall and a flexible film for providing therein a fluid chamber filled with a non-compressible fluid, and a partition member positioned within the fluid chamber to form on a first side thereof a primary fluid chamber partly defined by the rubber elastic wall, and on the other side thereof a secondary fluid chamber partially defined by the flexible film, with these chambers communicating through an orifice passage; and a rigid piston member. Upon input of vibration across the first and second mounting members, pressure fluctuations is exerted on the primary fluid chamber through elastic deformation of the rubber elastic wall of the fluid-filled unit induced through pushing by the contacting member via the piston member.

Abstract: A vibration damper including a first spline having a plurality of first teeth, a second spline having a plurality of second teeth, a third spline having a plurality of third teeth and at least one spring interconnected between the first and second splines, wherein the plurality of third teeth are intermediate the plurality of first teeth and the plurality of second teeth, and the at least one spring biases the plurality of first teeth and the plurality of second teeth against the plurality of third teeth.

Abstract: A pivot bushing for a suspension system has an inner metal and a split outer metal with an elastomeric bushing disposed between the metals. The split outer metal has one end which is partially closed by an inwardly curved portion and one end which is open. The assembly of the bushing is through the open end. Once assembled the open end is closed by placing a cover over the open end and crimping the cover to a flange formed at the open end. In another embodiment, the cover is inserted into the outer metal and the split outer metal is crimped to secure the cover in place.

Abstract: A hydraulically damping bush bearing (1) has an inner part (1) with a hole (3) extending along a longitudinal axis (4); an outer sleeve (9) surrounding the inner part (2); an elastomeric damping member (6) arranged between the inner part (2) and the outer sleeve (9); and at least two chamber pairs (21, 24) with at least two separate chambers (19, 20; 22, 23) each, which are filled with a hydraulic fluid.

Abstract: Second spring seats 62 each have a first support component 63, a second support component 64, and a reinforcing plate 66. The first support component 63 supports the ends of second coil spring 61a in the rotational direction. The second support component 64 extends in the rotational direction from the first support component 63 and supports the end of the second spring 61a in the radial direction. At least part of the reinforcing plate 66 is embedded in at least one of the first and second support components 63 and 64. The reinforcing plate 66 directly or indirectly supports the end of the second spring 61a along with the first and second support components 63 and 64.

Abstract: A method of manufacturing a vibration damping bushing wherein after setting a main shaft member on a lower mold, an medial sleeve is set to be disposed about the main shaft member, and a plurality of sections are moved forward in a centripetal direction to form an intermediate mold together, and then an upper mold is superposed onto the intermediate mold to form a mold cavity therein. At least one positioning protrusion is formed on a cavity defining face, being discontinuous in a circumferential direction, while being located at either semi-circumference of the cavity defining face with any diametric line interposed therebetween. The medial sleeve is set in position in an axis-perpendicular direction within the mold cavity by holding the positioning protrusions in contact against an outer peripheral face of the medial sleeve. A vibration damping bushing manufactured by this method is also disclosed.

Abstract: A vibration damping bush including: an inner shaft member, an outer cylindrical resin member, an elastic body, and a metal sleeve. The metal sleeve is externally fitted onto the outer cylindrical resin member that is disposed radially outwardly of the inner shaft member with the elastic body interposed therebetween. The outer cylindrical resin member includes a reduced diameter portion positioned inside of and reduced by a retaining portion of the metal sleeve and an enlarged diameter portion positioned axially adjacent to the reduced diameter portion. A boundary portion between the reduced diameter portion and the enlarged diameter portion of the outer cylindrical resin member is engaged with an engagement corner portion circumferentially positioned on an inner circumferential surface side of an axial edge region of the retaining portion of the metal sleeve, thereby restricting an axial displacement of the outer cylindrical resin member with respect to the metal sleeve.

Abstract: A resilient mount useful in a muffler assembly includes a support arm, a bracket arm and at least one resilient portion. In one example, the resilient portion comprises neoprene to provide a cushion between the support arm and the bracket arm. The resilient mount is for supporting at least one absorptive body within a housing and isolating the housing from vibrations of the absorptive body.

Abstract: An apparatus for closing fluid passages of engines is disclosed. Preferred apparatus of the invention are able to automatically recognize inlets of several fluid passages, which exist in each engine at different positions depending on the engine model, and rapidly and precisely perform operation of closing the inlets at the recognized positions using a caulking device and a robot, thus enhancing manufacturing productivity of the engine.

Abstract: To decrease dimensions in the axial direction by dispensing with a stopper while making the control of a value of spring constant easy in the axial direction of a sub-frame mount and in the direction meeting at right angles therewith, an inner cylinder 3 is arranged inside of an outer cylinder which is formed in a substantially cylindrical shape by having a pair of half bodies arranged in an opposed relationship, and a vibration isolating rubber is adapted to connect between the outer cylinder and the inner cylinder. Slits are formed on side walls of the vibration isolating rubber along slits dividing the outer cylinder. Projecting portions are provided on the inner peripheral wall of the outer cylinder to project toward the inner cylinder. The outer cylinder and tips are formed concentrically and a radius of curvature R1 of the inner peripheral wall of the outer cylinder is smaller than a radius of curvature R3 of the opposed outer peripheral wall of the inner cylinder.

Abstract: An elastomer bushing having an increased axial rate, improved durability, and high fatigue life due to the compression and confinement of the rubber element is provided. The manufacture of the elastomer journal is conventional for commercial vehicle applications. In a primary embodiment, the rubber is bonded to a bar pin by an adhesive, wherein the rubber journal is then subsequently assembled into an outer tube. After assembly, the outer tube is curled to retain the rubber journal, and the center of the outer tube diameter is swaged or compressed so as to deform the outer tube into the rubber. The compressed groove in the outer tube comprises the unique feature of this bushing design. This groove provides a mechanical “footing” that resists movement when an axial load is applied.

Abstract: A hydraulically damping bush bearing is provided with hydraulic area formed from at least two chamber pairs, wherein each chamber pair is formed from at least two separate chambers, which are connected to one another via at least one damping channel. The hydraulically damping bearing with damping in both the axial direction and the radial direction is further improved to the effect that damping or stiffness that can be switched off or on depending on the operating state is also made possible. The hydraulically damping bush bearing (1) chambers (19, 20; 22, 23) of the chamber pairs (21, 24) can be connected via a closable chamber wall opening (40).

Abstract: A coned disc spring is arranged between a second component and a third component provided inside a tubular first component and movable in an axial direction. The coned disc spring comprises a body having a circular dish shape, teeth closely fitting into spline grooves formed on an inner peripheral surface of the first component and projecting to a radial outer side on an outer periphery of the body, and a stress relaxation portion formed in a flat shape or a curved shape at an edge portion of a circular arc portion at the base of the tooth in a direction at least one of a circumferential direction and a radial direction of the body.

Abstract: A bush assembly is seated in a housing, having an outer sleeve (10), an inner tube (12) and a resilient body (14) connecting the inner tube (12) and the outer sleeve (10). The outer sleeve (10) has projections (20) from its outer surface that abut the inner surface of the housing (40) and cause local deformations on the sleeve around the projections (20). The local deformations around the projections (20) cause the radial gap (16) between the inner tube (12) and the outer sleeve (10) to change circumferentially and thus bush has different radial stiffness in different directions.

Abstract: Disclosed is a powertrain mount capable of being installed between a powertrain of a vehicle and a structural body of the vehicle supporting the powertrain to isolate vibration being transmitted between the powertrain and the structural body. The powertrain mount includes a bracket capable of being mounted on the powertrain or the structural body. The bracket has a rubber holder for receiving and supporting a rubber member thereinside. A slant support means is disposed inner side of the rubber holder and disposed slantly with respect to the horizontal plane of the vehicle. The slant support means is provided with a support member connector to which a support member installed in the powertrain can be connected. A rubber member is bonded with outer circumferential surface of the slant support means while surrounding the slant support means.

Abstract: A suspension bushing is provided in a connection between a lower arm supporting a drive front wheel and a subframe. The suspension bushing includes an inner cylindrical portion secured to the subframe, an outer cylindrical portion secured to the lower arm, and a rubber resilient member joining the inner and outer cylindrical portions. A protrusion, provided on the rubber resilient member as a region receiving a load during acceleration of the vehicle, is arranged to have a greater spring constant than a portion of the rubber resilient member surrounding a second opening section provided as a region receiving a load during braking of the vehicle.

Abstract: A cylindrical vibration damping apparatus having an elastic body connecting an inner shaft and an outer cylinder member, and a pair of rubber stop plates disposed at axial ends of the inner shaft member. Each rubber stop plate has a mount hole that fits about the outside of the inner shaft member. Pairs of mating projections and mating recesses are provided to an interface between an inner circumferential surface of the mount hole of the each rubber stop plate and an outer circumferential surface of the corresponding axial end of the inner shaft member at three or more different intervals in a circumferential direction so that the pair of rubber stop plates are installed onto the axial ends of the inner shaft member with correct identification of a front and back and a circumferential position about the inner shaft member. A method of manufacturing the same is also disclosed.

Abstract: A method of manufacturing a fluid-filled cylindrical damping assembly having sufficiently large extraction-resisting force in an axial direction of a metallic shaped product and an intermediate sleeve by the process following. There is provided a sealing rubber layer at an inner circumferential surface of the metallic shaped product having a tapered cylindrical shape where the inner flange portion is provided at an end portion of a small-diameter side. At least one concave groove is formed at an inside surface of an inner flange portion The metallic shaped product is inserted on an outer circumferential surface of an intermediate molded-body in a non-compressible fluid, and is diameter-reduced so as to be fitted and fixed. A large-diameter side end portion of the metallic shaped product is radially inwardly bent to form an engaging portion, and the engaging portion is engaged with a large-diameter side end portion of the intermediate sleeve.