Abstract: A first load transmission surface 54 and a second load transmission surface 56 are each formed as a flat surface extending parallel to a load input direction. Therefore, elastic deformation occurring in each of an outer body part 66 and an inner body part 68 in a stopper elastic body 64 includes a main component of a shear deformation component, and a secondary component of a compressive and tensile deformation component that is small relative to the shear deformation component. Consequently, a sharp increase in deformation resistance and dynamic spring constant when a high load is input can be effectively suppressed.

Abstract: A silent block comprises a first basic element and a rubber body at least partially surrounding the first basic element. The rubber body has, on its bearing side oriented toward a fastening side, at least one projection that projects beyond the bearing side in a direction of the fastening side.

Abstract: The invention relates to a docking buffer for attaching to ramps, comprising an elastic damping element (3) that is situated between two U-shaped sections (1; 2) consisting of a hard, shock-proof material. The limbs (4; 5) and (6; 7) of said sections are adjacent to one another and can be displaced in relation to one another, the limbs (4; 5) of one U-shaped section (2) converging at an angle ? that deviates from 90° in relation to a base surface (9) and the limbs (6; 7) of the other U-shaped section (1) diverging at an angle ? that deviates from 90° in relation to a base plate (8). The opening widths between the ends of the limbs (4; 5) and (6; 7) and the sizes of the angles ?; ? are selected in such a way that the limbs (4; 5) embrace the limbs (6; 7). The advantage of the invention is that it provides a docking buffer with a simple construction that is thus cost-effective to produce, said buffer affording reliable protection even during an off-center collision.

Abstract: A vehicle vibration-proof apparatus for supporting an engine and preventing transmission of vibrations from the engine includes an elastic member for connecting a first mounting member to be mounted to an engine with a second mounting member to be mounted to a vehicle body. The second mounting member includes a resinous bracket, having a tubular part and mounting parts for being mounted to the vehicle body, and a metal reinforcing bracket to be mounted to the tubular part for reinforcing the tubular part. The tubular part has a part, which is not reinforced longitudinally, between the mounting parts and a part thereof to which the metal reinforcing member is mounted.

Abstract: An elastomeric tie rod end isolator or an elastomeric cartridge isolator that includes an outer metal sleeve defining a generally cylindrical socket, a generally cylindrical inner metal sleeve disposed coaxially within the socket in radially spaced relationship with the outer metal sleeve, and an elastomeric isolator disposed therebetween. The elastomeric isolator is a unitary annular body formed of an elastomer material and having a radially inboard surface in contact with the inner metal sleeve and a radially outboard surface in contact with the outer metal sleeve. The unitary elastomer body has a generally conical primary load-carrying section and a generally cylindrical secondary load-limiting section, each disposed coaxially about the axis of the socket. The load-limiting section includes a snubber gap formed by an axially extending groove.

Abstract: An engine mount has: a mount body including an upper and lower fitting of plate shape, and a pair of rubber mount elements of block shape; and an inner tube fitting situated within a through-hole in the upper fitting, formed at a location between the pair of rubber mount elements, and a vibration damping bushing integrally vulcanization bonded with the inner tube fitting and the upper fitting, and connecting the inner and upper fittings in the diametrical direction. The pair of rubber mount elements and the bushing rubber are integrally vulcanization molded. A stopper fitting is affixed within the inner tube fitting, with a vehicle front-back direction fitting stopper portion and/or a left-right direction fitting stopper portion being disposed on the stopper fitting, and a corresponding rubber stopper portion is disposed on the upper fitting side, with the fitting stopper portion and the rubber stopper portion being placed abutting one another.

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: An oscillation limiting mechanism 4 is integrally provided to an engine mount 3 (a vibration proof mount device) of a power plant P mounted on an automobile in a traverse mount fashion. Not only is a stopper metal member 40 in the shape of an inverted U letter disposed so as to cross over a mount body portion 30, but a stopper rubber 42 is formed so that it protrudes from the rear end of a casing of the mount body portion 30 toward the rear side of the vehicle body. Not only is a hollow portion 43 formed in the interior of the stopper rubber 42, but a metal core body 44 is also embedded in the stopper rubber 42 so as to be revolvable around an axis in the vehicle body traverse direction as if it were a link.

Abstract: A vibration isolation platform utilizes a plurality of viscoelastic polymer blocks sandwiched between rigid plinths or boards and stacked on top of one another to provide vibration damping additively per layer of the sandwich. Smaller viscoelastic blocks are positioned between the edges of the plinths and the sidewalls of a framework in which the sandwich is mounted to compensate for lack of shear stress in the larger blocks. The platform is pre-loaded to optimum isolation and locked down at the required compression. Optimum isolation is achieved for any electronic component positioned on the platform up to the design weight limit.

Abstract: A vibration proofing heat shield plate fixed such as to cover at least a part of a heat source while forming a gap with respect to a surface of the heat source is provided with a vibration proofing heat shield plate main body portion, a collar member positioned at an open hole of the vibration proofing heat shield plate main body portion and provided with a pair of locking pieces fastened by bolt to the heat source, a washer member in which a portion interposed between a pair of locking pieces of the collar member is formed in an approximately C-shaped cross section, and a joint member joining the washer member and the vibration proofing heat shield plate main body.

Abstract: A piston-cylinder unit includes a working cylinder, a damping piston mounted for movement in the cylinder, and a piston rod connected to the piston. An outer tube surrounding the working cylinder defines a compensating space, and a piston rod guide fitted to the working cylinder and the outer tube closes off an end of the compensating space, the piston rod guide having a bore communicating with the compensating space. An envelope body of variable shape, located in the compensating space, is filled with gas through a connecting element having a cylindrical portion fitted in the bore. The connecting element also has a lobe which is received through an elongate aperture in a retaining plate fitted over the bore when the connecting element is in a selected orientation, the lobe being axially retained under the plate by rotating the connecting element from the selected orientation.

Abstract: A bracket assembly for a car shaker vibrator that includes a vibrator mounting member that is pivotally connected by a pivot pin, in a hinged or clevis arrangement, to a wedge member. The wedge member includes the male portion of a Gardner type bracket that is adapted for engaging a mating female portion that is mounted on a railroad car. The vibrator mounting member may be selectively rotated between a first position and a second position. The vibrator mounting member is retained at the first position by a locating pin during the emptying of a railroad car during the selective operation of the car shaker vibrator. The vibrator mounting member is retained at the second position by the locating pin when the dislodgement of the male portion from the female portion is desired together with the selective and subsequent operation the car shaker vibrator. An intermediate position may be provided between the first position and the second position and used when needed.

Abstract: A rubber 12 is vulcanized and bonded integrally with an engine side mounting member 11 and a barrel member 14 for caulking and fixing a diaphragm 16. A car body side mounting member 13 is formed by injection molding a resin material on the outer circumference of the rubber 12. A seal is provided between the barrel member 14 and the diaphragm 16 by caulking the peripheral edge part of the diaphragm 16 with the barrel member 14.

Abstract: An elastomeric spring assembly for a railcar apparatus is disclosed. The elastomeric spring assembly includes an elongated body of elastomeric material having a series of axially spaced members coaxially arranged and wholly embedded within the body of elastomeric material. The majority of the embedded members are configured to resist radial outward movement of said elastomeric material while causing the elastomeric material to react in an axial direction between confronting surfaces defined by the members upon axial deflection of the elastomeric spring whereby enhancing performance characteristics of the spring assembly. A method of making an elastomeric spring assembly is also disclosed.

Abstract: An oscillation limiting mechanism (4) is integrally provided to an engine mount (3) (a vibration proof mount device) of a power plant (P) mounted on an automobile in a traverse mount fashion. Not only is a stopper metal member (40) in the shape of an inverted U letter disposed so as to cross over a mount body portion (30), but a stopper rubber (42) is formed so that it protrudes from the rear end of a casing of the mount body portion (30) toward the rear side of the vehicle body. Not only is a hollow portion (43) formed in the interior of the stopper rubber (42), but a metal core body (44) is also embedded in the stopper rubber (42) so as to be revolvable around an axis in the vehicle body traverse direction as if it were a link.

Abstract: An elastomeric bearing having inner and outer races and a core. The core has a plurality of resilient laminae and a plurality of non-resilient laminae interleaved with one another. Each of the lamina has an axially inner cylindrical portion of a given diameter, an axially outer cylindrical portion of a greater diameter than the given diameter and, lying between the inner and outer laminae, an angled portion joining the axially inner and outer laminae to each other. The laminae are continuous and of one piece. In this way, the elastomeric bearing has comparatively small resistance to torsional movement, but great resistance to both radial and axial movement.

Abstract: An elastomeric spring assembly for a railcar apparatus is disclosed. The elastomeric spring assembly includes an elongated body of elastomeric material having a series of axially spaced members coaxially arranged and wholly embedded within the body of elastomeric material. The majority of the embedded members are configured to resist radial outward movement of said elastomeric material while causing the elastomeric material to react in an axial direction between confronting surfaces defined by the members upon axial deflection of the elastomeric spring whereby enhancing performance characteristics of the spring assembly. A method of making an elastomeric spring assembly is also disclosed.

Abstract: A vibration-damping device for damping vibrations of a vibrative member, which includes a damper mass member having a rigid abutting portion, a spring member for elastically connecting the damper mass member to the vibrative member to cooperate with the damper mass member to constitute a second vibration system whose natural frequency is tuned to a frequency band of the vibrations of the vibrative member, and an independent mass member disposed so as to be opposed to the rigid abutting portion in a vibration input direction with a given gap therebetween without being adhesive to the rigid abutting portion. The independent mass member is independently displaceable relative to and brought into abutting contact directly and elastically with said rigid abutting portion in said vibration input direction.

Abstract: A fluid filled vibration-damping device includes an elastic body disposed between a first mounting member and a second mounting member and partially defines a fluid chamber having a non-compressible fluid sealed therein, and exhibits vibration damping action on the basis of flow action of the non-compressible fluid created within the fluid chamber during vibration input. At least one mounting member from among the first and second mounting members is formed independently of the elastic body and is disposed in abutment with the elastic body in an initial load acting direction, while making the mounting member displaceable away from the rubber elastic body in a opposite direction from the initial load acting direction. A rebound stop mechanism for limiting displacement of the mounting member away from the rubber elastic body in a cushion-wise fashion is disposed between the first and second mounting members.

Abstract: A vibration isolation spring mount is disclosed. A compression coil spring is inserted between an inner sleeve and an outer sleeve and a pair of pads are disposed on the inner sleeve and the outer sleeve. Outwardly extending blades disposed on the open end of the inner sleeve are inserted into the spaces defined by inwardly extending teeth disposed on the open end of the outer sleeve, then the blades are rotated relative to the teeth until the teeth and the blades impingingly engage due to the compressed compression coil spring biasing the teeth against the blades.

Abstract: A rear engine mount includes a rectangular upper metal plate member, a metal stopper member, and a lower metal plate member. The metal stopper member includes a pair of side plates, and a bottom plate. The lower metal plate member is disposed a predetermined distance away from the upper metal plate member in a facing condition, with the metal stopper member disposed therebetween, and includes a pair of retaining portions provided at opposite end positions. A second stopper portion includes a pair of vertical plate portions standing on the lower metal plate member, and a horizontal plate member which is attached to the ends of the vertical plate portions and extended over the bottom plate of the metal stopper member. A pair of elastic rubber support members is bonded to the lower surface of the upper metal plate member at opposite end portions.

Abstract: A fluid filled elastic mount including a rubber elastic body disposed between and integrally connecting coaxial main rod member and outer sleeve member at their first ends. A diaphragm is also disposed between the main rod member and outer sleeve member at their second ends to form between itself and the rubber elastic body a fluid chamber that is divided by an annular partition member held with its outer peripheral edge press fit against the outer sleeve member into a primary fluid chamber and an auxiliary fluid chamber, while forming an orifice passage between its inner surface and the main rod member, for permitting a communication between the primary and auxiliary fluid chamber. The diaphragm has a thick walled portion of annular disk shape, and thin walled portions formed extending circumferentially about an outer peripheral edge of the thick walled portion while covering a smaller range than the thick walled portion.

Abstract: One embodiment of a spring with an integral dynamic gas seal according to the present invention includes a spring with a pair of spaced-apart ends and a spring body extending therebetween. The spring body includes a perimeter wall formed of a first material and extending in a longitudinal direction. The wall has a plurality of openings defined therein. The openings are provided in a plurality of transverse tiers. Each tier includes a plurality of separate openings each extending along a portion of the perimeter. The openings in each tier are spaced apart so as to define a post between each adjacent opening such that each tier includes a plurality of posts. The openings in each tier are staggered with respect to the openings in adjacent tiers such that each of the openings in each tier overlie one of the posts in an adjacent tier. A closure member closes each of the openings such that the spring body is sealed.

Abstract: Disclosed is a vibration-damping device comprising: a first and a second mounting member disposed in mutually spaced apart relationship with each other and attachable to two members of a vibration system, respectively; and an elastic body disposed between and elastically connecting the first and second mounting members and including a connecting portion adapted to primarily connect the first and second mounting members. The connecting portion has a hollow housing portion in which an independent mass member is accommodated such that the independent mass member is independently displaceable relative to the housing portion without being bonded to the housing portion, and is brought into direct and elastic impact against the housing portion.

Abstract: A shock absorber for an automobile which exhibits a vibration damping effect in a wide range of a frequency, while suppressing generation of frictional noise. The shock absorber for the automobile has a buffer member interposed between parts. The buffer member has a laminated structure including a plurality of vibration damping layers each having a peak of loss tangent tan&dgr; in a range of a frequency which is different from others and surface layers made of thermoplastic resin.

Abstract: An elastomer spring for supporting an axially arranged coil spring, in particular in an engine mounting is constructed to reduce the radial loads on the coil spring with simultaneous damping and includes a transversely soft composition for the elastomeric spring. The elastomeric spring is provided with a centering projection which may be introduced into the coil spring and a section which may be deformed by the effect of radial forces, with a molded sheet being provided to stabilize the force carrying section of the elastomeric spring.

Abstract: A hydraulically damped mounting device has a first anchor part in the form of a clip and a second anchor part in the form of a boss connected to the cup by a deformable wall. The deformable wall bounds a working chamber for hydraulic fluid which is connected to a compensation chamber by a passageway. A strap is provided extending around the mounting device which is fixed to either or both of the anchor parts. The fixing may be via a clip.

Abstract: A vibration damper little depending on temperature, capable of damping plural resonance vibrations over a wide frequency region as well as damping a specific frequency vibration is provided. The vibration damper comprises a housing formed of a rigid material, having an internal space and fixed to a vibration transmitting member, an elastic body inserted in the internal space not bonded thereto with a gap in a direction of vibration of the housing, and a weight integrally supported by the elastic body so as not to touch the housing. The elastic body and the weight form a dynamic damper.

Abstract: The present invention pertains to a rubber bearing with graduated damping characteristic, which comprises in the known manner essentially a preferably cylindrical or approximately cylindrical inner part, a tubular outer sleeve arranged coaxially around the inner part as well as a pressure body with chambers for a damping agent, which pressure body is arranged in a fixed manner between the inner part and the outer sleeve. The object of the present invention is to provide a rubber bearing which has a simple design and effectively damps forces introduced in different ranges of the characteristic due to its graduated damping characteristic. To accomplish the object, the pressure body of the bearing is divided in the radial direction into a plurality of damping areas whose damping characteristics can be adjusted independently from one another by an intermediate sleeve arranged coaxially to the inner part and the outer sleeve.

Abstract: An elastomer spring for supporting an axially arranged coil spring, in particular in an engine mounting is constructed to reduce the radial loads on the coil spring with simultaneous damping and includes a transversely soft composition for the elastomeric spring. The elastomeric spring is provided with a centering projection which may be introduced into the coil spring and a section which may be deformed by the effect of radial forces, with a molded sheet being provided to stabilize the force carrying section of the elastomeric spring.

Abstract: A shock isolator comprising a first plate having a set of ridges and grooves extending there along and a second plate having a complementary set of ridges and grooves with an elastomeric sheet sandwiched between the two plates so that when a compressive force is applied to the two plates the elastomeric sheet resist the forces through compression resistance, tension resistance and shear resistance to provide both static support and shock isolation to an object supported by the shock isolator.

Abstract: A method for facilitating the reduction of transmitted motor noise using a mounting system in a frame. The mounting system includes a motor assembly having an end bell, a mounting bracket including a brace, a plurality of attachment openings, a plurality of leaf springs attached to the brace and an anchor device attached to each leaf spring. Each anchor device includes a fastener opening and a grommet. The leaf springs and grommets are configured to filter and damp noise transmitted from the motor to the frame.

Abstract: A vibration damping device is disclosed, which includes: a first mounting member and a second mounting member including a cylindrical portion; an elastic body elastically connecting the first and second mounting member such that the elastic body is bonded at a central portion thereof to the first mounting member and at a peripheral portion thereof to an inner circumferential surface of the second mounting member. The second mounting member includes a constricted part which is integrally formed in the open end portion of the cylindrical portion thereof so as to protrude radially inwardly of the cylindrical portion and so as to extend circumferentially over an entire circumference of the cylindrical portion, and which has the maximum outer diameter not larger than that of the cylindrical portion.

Abstract: A dynamic damper is disposed between an upper spring seat and a strut mount, comprising a supporting plate secured to a piston rod of a strut and an annular inertia mass body mounted on the supporting plate through an elastic member. The annular inertia mass body is connected at two edge portions thereof located opposite to each other across the diameter with the supporting plate by a bolt and nut through the elastic member, respectively.

Abstract: An engine mount with vertical alignment for mounting a powertrain member on a chassis of a vehicle. The engine mount with vertical alignment has a mount body which has a hollow core for housing a metal core. The metal core has at least one channel for accepting a vertically placed bolt, the metal core being held in position by a rubber mount. The metal core interfaces with a mounting bracket that is connected to a powertrain member for vertical mounting onto a chassis.