Nonmetallic, Resilient Element Patents (Class 267/141)
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Publication number: 20090034224Abstract: The invention relates to a support arrangement for an inner module in an outer module, particularly for an inner vibrating frame in an outer frame of an outer housing, with a damping device between the inner and outer modules for absorbing forces acting in up to three coordinate directions relative to the inner and outer modules. The damping device is essentially constructed as an elastic polymer profile, particularly two polymer profiles, running round between the inner and outer modules and that the inner and outer modules are constructed with a bearing device for the elastic polymer profile or profiles.Type: ApplicationFiled: February 14, 2006Publication date: February 5, 2009Inventors: Armin Wiedemeier, Markus Weber, Markus Zbinden, Walter Tschopp, Andreas Amacker
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Publication number: 20090026674Abstract: In a vibration damping device for an elevators an actuator for generating a vibration damping force acting on an elevator car is provided in parallel with a spring for urging a guide roller against a guide rail. The actuator is controlled by a controller. The controller determines the vibration damping force to be generated by the actuator based on information from a car frame acceleration sensor for detecting horizontal acceleration of a car frame and a car cage acceleration sensor for detecting horizontal acceleration of a car cage.Type: ApplicationFiled: September 9, 2005Publication date: January 29, 2009Applicant: Mitsubishi Electric CorporationInventor: Kenji Utsunomiya
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Publication number: 20090026675Abstract: A vibration damping device having a rubber heat-insulating cover wherein a strike plate portion and a pair of leg portions of a stopper member have detaining slots opening towards an outside, and two side walls of the detaining slot of the strike plate portion has stepped portions of notched shape disposed in its heightwise distal edge section. Center hook portions are formed on an outside face of a center section of the rubber heat-insulating cover, while outside hook portions are formed on an outside face of a peripheral wall portion of the rubber heat-insulating cover. The center hook portions are engaged with the two side walls of the detaining slot, and the outside hook portions are engaged with the two side walls of the detaining slots in the leg portions. Two end faces of the center hook portions are held in abutment against stepped faces at either end of the stepped portions in both side walls of the detaining slot.Type: ApplicationFiled: July 11, 2008Publication date: January 29, 2009Applicant: Tokai Rubber Industries, Ltd.Inventors: Tomohiro Kanaya, Kei Okumura
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Patent number: 7478803Abstract: A compact shock absorption, vibration, isolation, and/or suspension device is provided having long life and increased performance in a compact design. The device of the present disclosure is both less expensive and simpler to manufacture. In addition to being able to be used as a shock absorber in the hub of a wheel of an in-line skate, scooter or other small wheeled vehicle, the device of the present disclosure may be used in locations outside a wheel hub as well as in non-wheel devices where there is a need to isolate, damp, and absorb shock and/or vibrations experienced by a component of the device in order to minimize their effect on the entirety of the device.Type: GrantFiled: March 31, 2003Date of Patent: January 20, 2009Inventor: Elmer Lee
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Publication number: 20090008504Abstract: The device comprises at least three isolating modules each having two rigid pieces, one of which is fastened to the carrier structure and the other of which is fastened to the support for the vibrating equipment, these pieces being linked by at least one isolating stud made of an elastomer, which attenuates the transmission of low-amplitude vibrations from the equipment to the structure, the deformation of at least one stud in tension-compression and in shear being limited by three flexible stops each mounted on only one of the pieces and the free end of which is facing the other of said pieces and not in contact with it, at rest. Each stop comprises an elastomer element coming into contact with the facing other piece during deformations of sufficient amplitude of the isolating stud, the stiffness of the elastomer of the stop being greater than that of the stud. Application to the isolation of vibrating equipment on a satellite carrier structure.Type: ApplicationFiled: December 21, 2006Publication date: January 8, 2009Applicant: ASTRIUM SASInventor: Patrick Camarasa
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Patent number: 7458565Abstract: 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.Type: GrantFiled: November 4, 2005Date of Patent: December 2, 2008Assignee: Honda Motor Co., Ltd.Inventor: Tetsuya Miyahara
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Patent number: 7445201Abstract: An engine mount including: an inner fitting having a first flange at a first axial end thereof; a cylindrical outer fitting having at a first axial end a second flange extending outwardly in the axis-perpendicular direction and positioned in opposition to but spaced apart from the first flange portion in an axial direction; a side rubber elastic body elastically connecting the first and second flanges; a main rubber elastic body elastically connecting the inner fitting and the outer fitting in a direction of axial elongation of the side portion rubber elastic body; and a hollow portion extending from a second axial end toward a first axial end of the main rubber elastic body with a distal and thereof reaching an interior of the side rubber elastic body, thereby bifurcating the main rubber elastic body at an inside circumferential face of the outer fitting. The engine mount is positioned with the axial direction facing a left-right direction of the vehicle.Type: GrantFiled: March 25, 2005Date of Patent: November 4, 2008Assignee: Tokai Rubber Industries, Ltd.Inventor: Masami Endo
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Publication number: 20080237953Abstract: A vibration damping mount assembly having a vibration damping mount main body and a tubular bracket. The tubular bracket is made of lightweight material composed of non-ferric metal or synthetic resin, and has an inside peripheral face including an upper tapered face and a lower tapered face that gradually expand in diameter towards openings at either axial end from an axially medial section. A flanged portion of a second mounting member is axially juxtaposed against an open end of the upper tapered face, while the lower tapered face is pressed against a rubber fitting, with the lower tapered face locked in contact against an annular mating face of the rubber fitting thereby providing dislodging of the vibration damping mount main body from the tubular bracket.Type: ApplicationFiled: March 5, 2008Publication date: October 2, 2008Applicants: TOKAI RUBBER INDUSTRIES, LTD., HONDA MOTOR CO., LTD.Inventors: Eiji Tanaka, Tetsuya Miyahara
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Publication number: 20080230970Abstract: An isolator mount for the active dissipation of shocks and vibrations is presented. The invention includes at least one energy dissipating layer and deflectable elements so as to provide soft damping for small disturbance excitations, yet remaining sufficiently stiff to mitigate large shocks. The mount transfers mechanical energy to the dissipating layers via the device structure. Dissipating layers convert shock and vibration energies to either heat or magnetic energy.Type: ApplicationFiled: June 4, 2008Publication date: September 25, 2008Inventors: Gareth J. Knowles, Bruce Bower
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Publication number: 20080229682Abstract: A seismic joint, for covering a gap (4) defined between a first (2) and a second (3) structural element, comprises: a first anchoring portion (6a) to be steadily associated with the first structural element (2); a first interconnecting portion (6b) rotatably connected to the first anchoring portion (6a); a covering element (5) having a first end (5a) rotatably in engagement with the interconnecting element (6b) and a second end (5b) able to be engaged in a slidably supported relationship on the second structural element (3).Type: ApplicationFiled: March 5, 2008Publication date: September 25, 2008Applicant: KIVATEC S.R.L.Inventor: DAVIDE TORSANI
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Publication number: 20080211152Abstract: 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.Type: ApplicationFiled: August 8, 2005Publication date: September 4, 2008Inventor: John J. Jacobs
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Patent number: 7419145Abstract: A friction damper comprises a channel member including at least one friction channel and a wedge member including at least one friction wedge received by a corresponding friction channel for sliding motion along the channel relative to the channel member. Each friction channel has a pair of internal sidewalls connected by an internal transverse wall, wherein at least one of the pair of sidewalls forms an obtuse angle with the transverse wall. In a preferred construction, the sidewalls are symmetrically convergent as they approach the connecting transverse wall. Each friction wedge includes a pair of external sidewalls parallel to the internal sidewalls of the channel, wherein the external sidewalls of the friction wedge are movable into surface-to-surface engagement with the internal sidewalls of the friction channel by adjusting the depth of receipt of the friction wedge in the friction channel.Type: GrantFiled: June 6, 2003Date of Patent: September 2, 2008Inventors: George C. Lee, Zach Liang
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Publication number: 20080184643Abstract: The present invention provides an acoustical firewall attenuating assembly. The assembly includes a first frame assembly having a first plate, a second plate and a first plurality of elongate members spaced from one another and extending between the first plate and the second plate. A structure is spaced from the first frame assembly and has an outer surface. A cement wall is positioned between the first frame and the structure and is attached to at least the first frame assembly by a first vibration dampener.Type: ApplicationFiled: November 27, 2007Publication date: August 7, 2008Inventors: Matthew Foster, Frank Schwab
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Publication number: 20080184501Abstract: A dock leveler includes a vehicle-engaging lip extending beyond the front end of a pivotal deck, wherein the lip has one or more unique features that reduce the level of vibration generated when the lip contacts a trailer bed as material handling equipment traverses the lip. By damping the vibration generated when the lip interacts with the trailer bed, the special features also reduce the level of noise emitted. The special features of the lip may include a cushion attached to an undersurface of the lip such that the cushion is adapted to be compressed between the lip and the trailer bed as material handling equipment traverses the lip.Type: ApplicationFiled: November 15, 2007Publication date: August 7, 2008Inventors: Bernd Vering, Hans Joseph Kloppenburg, Norbert Hahn, Reinhard E. Sander
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Patent number: 7399517Abstract: A cushion pad for shows includes a top plate, a bottom plate and a flexible mediate portion connected between the top plate and the bottom plate. The flexible mediate portion includes a plurality of straight plates perpendicularly connected to the top plate and the bottom plate, and a serrated plate is connected between the straight plates extending from the top plate and the bottom plate.Type: GrantFiled: April 19, 2005Date of Patent: July 15, 2008Assignee: I Shing Trade Co., Ltd.Inventor: Jack Wang
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Patent number: 7368158Abstract: The present invention relates to problems of maintenance of elastomeric members. According to the invention, the elastomeric member is provided with at least one elastomeric layer 1 disposed between two rigid strength members 2. In addition, the elastomeric member is provided with graduations 5 located on its visible surface 7, presenting an angle of inclination relative to the rigid strength members 2, thus making it possible to evaluate and monitor propagation of a crack 6 merely by inspecting it visually.Type: GrantFiled: September 30, 2004Date of Patent: May 6, 2008Assignee: EurocopterInventors: Gilles Herpin, Vincent Scala
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Patent number: 7354248Abstract: An elastomeric bearing element having an outer race, an inner race, and at least two elastomeric segments secured between the inner and outer races is provided. The elastomeric segments are spaced from one another by a corresponding number of expansion segments. The elastomeric segments provide a first spring rate when a first force applied to the outer race places the elastomeric segments in compression and a second spring rate when a second force applied to the outer race places the elastomeric segments in shear. The second spring rate is lower than the first spring rate.Type: GrantFiled: October 17, 2005Date of Patent: April 8, 2008Assignee: Sikorsky Aircraft CorporationInventor: David A. Zinni
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Patent number: 7350778Abstract: A torque rod comprising: a first and second bushing disposed at both ends of the resin torque rod, each bushing having a resin outer casing and a rigid inner casing and a rubber elastic body interposed between the outer and inner casings, and a connecting component for connecting the first and second bushings, The connecting component has a predetermined breaking location adapted to be broken upon input of a substantial load during collisions, the predetermined breaking location includes a thin-walled portion provided at a location where the thin-walled portion undergoes compression break upon input of the substantial load, and a thick-walled portion provided at a location apart from a central axis of the connecting component in a perpendicular direction to the central axis of the connecting component.Type: GrantFiled: March 15, 2005Date of Patent: April 1, 2008Assignee: Tokai Rubber Industries, Ltd.Inventor: Masami Endo
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Patent number: 7341245Abstract: A bushing member includes a hinge portion enabling improved assembly and, in some embodiments, an optional flange and a seal design that limits moisture entry also ensures an improved fit when secured with a matching bracket compressing the bushing in a beneficial manner.Type: GrantFiled: April 15, 2004Date of Patent: March 11, 2008Assignee: Research & Mfg. Corp. of AmericaInventor: Jerry Joseph
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Publication number: 20080023898Abstract: A geometric shaped side bearing pad includes a top and a surface extending an angle ? towards the top, wherein the bearing pad has a geometric shape and a non-linear spring rate which levels out a reaction force without buckling. The surface of the bearing pad can have two sides or four sides, can have spacing within the surface, or can be solid. The angle ? can be within the range of about 20 degrees and 85 degrees, and may preferably be within the range of about 30 degrees and 45 degrees to achieve non-linear load/deflection. The top of the bearing pad can have a slot defined therethrough to accommodate a protrusion in a fixture to engage the bearing pad. The bearing pad can provide a friction contact with an object and enables lateral force transfer to the bearing pad, thereby providing lateral stiffness.Type: ApplicationFiled: October 20, 2006Publication date: January 31, 2008Inventor: Richard L. Palinkas
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Patent number: 7314125Abstract: Impact attenuating/spring systems may include first and second body portions and at least one spring member at least partially included between the body portions. The spring member(s) may substantially enclose and/or be pivotally engaged with the body portion(s). The components of the impact attenuating and spring element may be arranged such that when a force is applied to the body portion(s), the spring member(s) will exert a counter force to urge the impact attenuating and spring element back toward its original orientation. The spring members may include one or more polymeric element that stretches under a tensile force. The impact attenuating and spring elements may be included in a piece of footwear or other device in a manner such that a user or a retailer (or others) can select an appropriate spring member (or portion thereof), e.g., depending on characteristics of the user or the intended use.Type: GrantFiled: September 27, 2004Date of Patent: January 1, 2008Assignee: Nike, Inc.Inventors: Patricia Louise Smaldone, Michael A. Aveni, Fred G. Fagergren
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Patent number: 7306211Abstract: A coupling for resilient interconnection of two objects, especially a wheel axle housing and a chassis of a vehicle. The coupling comprises an elongated supporting piece (50), which extends in a longitudinal direction and two end attachment portions (52, 54) and a central portion (56). The coupling also comprises an elastic element (60), which is arranged around the central portion (56) and has an approximately cylindrical outer surface (64) and two end surfaces (68, 70). The coupling further comprises a first and a second abutment member (82, 84), where the first abutment member (82) has a bottom (90) and a tubular portion (86), which is fixed to the bottom (90) and has an open portion and a cylindrical inner surface (98). The bottom has a trough-going hole (106) through which one end attachment portion (52) can extend. The second abutment member (84) has a hole (108) through which the second end attachment portion (54) can extend.Type: GrantFiled: March 10, 2003Date of Patent: December 11, 2007Assignee: Kongsberg Automotive ASAInventor: Sven Bjørkgård
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Patent number: 7252298Abstract: A pivot bearing used in a vehicle trailing arm suspension includes a housing, a resilient bush compressed and bonded in the housing, and a rigid axial sleeve in the bush. The bush has voids, above and below the sleeve when the pivot bearing is fitted for use and stiffening elements which extend between the voids at opposite sides of the sleeve. When the pivot bearing is in use in a vehicle trailing arm suspension, the voids increase flexibility of the bush under generally vertical loading on the pivot bearing. The stiffening elements enhance the stiffness of the bush in generally horizontal direction for improved vehicle dynamics and reduced vibration. Preferably, the stiffening elements are of plate or leaf form, are bonded to the bush, and extend arcuately about the sleeve. The voids extend partially through the axial thickness of the bush from opposite ends of the bush and generally accurately about the sleeve. The bush also has enlarged opposite circumferential end portions.Type: GrantFiled: August 31, 2001Date of Patent: August 7, 2007Assignee: Meritor Heavy Vehicle Systems LimitedInventor: Thomas Hughes
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Patent number: 7246797Abstract: Device for damping vibrations of a vibration surface (21) of the frequency tuned resonance damping kind consisting of one or several elastic damping elements (1–4) and a vibration body (5) supported by the damping elements which together are tuned to damp the vibrations of said surface within a selected frequency range. First mutually co-operating form grip organs give a form grip between said damping elements (1–4) and the vibration surface (21) and second mutually co-operating form grip organs give a form grip between the damping elements and the vibration body. The form grip organs in addition have a recess with gripping surfaces (25–30, 33–35) for transferring vibrations.Type: GrantFiled: June 1, 2001Date of Patent: July 24, 2007Assignee: Trelleborg Forsheda Sweden ABInventor: Bengt-Göran Gustavsson
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Publication number: 20070158889Abstract: A hydraulically damped mounting device has a first anchor part; a second anchor part in the form of a hollow sleeve containing the first anchor part, such that the first anchor part extends axially of the sleeve; first and second resilient walls interconnecting the first and second anchor parts, the first and second resilient walls being spaced apart so as to define an enclosed space within the sleeve extending circumferentially around the first anchor part and axially bounded by the first and second resilient walls; first and second deformable walls, each extending axially between the first and second resilient walls at circumferentially spaced locations, so as to divide the enclosed space into first and second chambers for hydraulic fluid; a passageway interconnecting the first and second chambers, the passageway being for flow of hydraulic fluid therethrough.Type: ApplicationFiled: December 21, 2006Publication date: July 12, 2007Applicant: Cadillac Rubber & Plastics, Inc.Inventors: Michael Paul Rooke, Ian Nicholson, Martin James Spencer
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Patent number: 7201367Abstract: A resilient mount including a first mounting member and a second mounting member is provided. The mount may include a first plurality of stiffening elements located between the first and second mounting members. At least a first stiffening element may be non-parallel to a second stiffening element. The mount may also include a resilient material located between and coupled to adjacent stiffening elements of the first plurality of stiffening elements.Type: GrantFiled: December 12, 2002Date of Patent: April 10, 2007Assignee: Caterpillar IncInventor: Ross Paul Wietharn
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Patent number: 7195217Abstract: 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.Type: GrantFiled: January 19, 2006Date of Patent: March 27, 2007Inventor: Theodore S. Wadensten
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Patent number: 7162399Abstract: A pneumatic device selection system has a computer, first through sixth databases connected to the computer and storing data of at least pneumatic devices, a coordinate input unit and a keyboard connected to the computer, for entering input data based on an input action of an operator into the computer, and a display unit connected to the computer, for displaying information from the computer. The pneumatic device selection system functionally has a first selection processor for selecting a cylinder operating system based on input data from the coordinate input unit or the like, and a second selection processor for selecting a shock absorber based on input data from the coordinate input unit or the like and/or a selection result from the first selection processor.Type: GrantFiled: October 3, 2002Date of Patent: January 9, 2007Assignee: SMC Kabushiki KaishaInventors: Huping Zhang, Mitsuru Senoo, Naotake Oneyama
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Patent number: 7125211Abstract: A machine tool for performing a machine tool function including components adapted to cooperate with each other to execute the machine tool function. The machine tool has a number of constituent parts and a number of sheets of damping material. Each component includes constituent parts with sheets of damping material interposed between the constituent parts. The sheets dampen vibration of the machine tool during performance of the machine tool function.Type: GrantFiled: October 17, 2003Date of Patent: October 24, 2006Assignee: Racer Machinery International Inc.Inventor: Don Zoran
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Patent number: 7114712Abstract: A stabilizer bar assembly has a stabilizer bar and a pair of bushing assemblies. Each bushing assembly has an elastomeric bushing disposed around the stabilizer bar and an outer metal member disposed around the elastomeric bushing. The elastomeric bushing has a molded in rate plate to increase the stiffness of the elastomeric bushing. The outer metal member compresses the elastomeric bushing between the stabilizer bar and the outer metal member to a prespecified percent of compression. When the stabilizer bar rotates with respect to the outer metal member, the compression of the elastomeric bushing stops movement between the elastomeric bushing and the stabilizer bar and between the elastomeric bushing and the outer metal member. A fastening strap is attached to the outer metal member to attach the stabilizer bar assembly to a vehicle.Type: GrantFiled: June 28, 2004Date of Patent: October 3, 2006Assignee: The Pullman CompanyInventors: James Lewis, Richard Novy, Robert Missig, Robert Ferguson, Andrew Franzen
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Patent number: 7052004Abstract: A hydraulically damping rubber mount is provided with a variable channel length. The mount channel length can be adapted to the later intended use with a simple design during the manufacture without changing the design. The hydraulic mount has an elastomeric damping member, at least two chambers to accommodate a fluid damping agent and a channel carrier with a channel connecting the chambers in a flow-conducting manner. The channel has passage openings to the chambers. An incompletely closed ring, one end of which forms a channel deflection, is displaceably guided in the channel in the manner according to the present invention. The channel is divided as a result into two channel parts, which unite between the ends of the ring and through which the damping agent flows in opposite directions.Type: GrantFiled: October 29, 2002Date of Patent: May 30, 2006Assignee: ZF Lemförder MetallwarenInventors: Hubert Siemer, Claudia Willert, Frank Duisen, Andreas Vossel
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Patent number: 7011187Abstract: A vibration damper including a damping element in a housing supports a component via a mounting bracket clamped between upper and lower plates after making horizontal adjustments. A hollow adjusting screw, a fixing screw and a counternut achieve a vertical adjustment, and a connection to the damping element. A hollow guide screw and an indicating pin axially slidably extending therethrough have visual alignment sights that indicate the vertical adjustment (via the adjusting screw) of the damping element relative to the housing, to facilitate achieving an optimal neutral loading of the damping element despite dimensional tolerances.Type: GrantFiled: April 5, 2004Date of Patent: March 14, 2006Assignee: Airbus Deutschland GmbHInventor: Herbert Steinbeck
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Patent number: 6991077Abstract: A vibration-damping device includes: a damper mass having a housing member with an accommodation space, an independent mass member housed within the accommodation space with a slight spacing therebetween so that the independent mass member is independent of the housing member and is freely displaceable within the accommodation space of the housing member to come into impact on the housing member via an elastic member; and a metallic spring member to be fixed at a plurality of fixing portions thereof on the vibrative member for elastically supporting the damping mass vibrative member, such that the housing member of the damper mass is fixed to a portion of the metallic spring member through which a principal elastic axis of the metallic spring member extends, and that a center of gravity of the damper mass is located on the principal elastic axis of the metallic spring member.Type: GrantFiled: September 26, 2002Date of Patent: January 31, 2006Assignee: Tokai Rubber Industries, Ltd.Inventors: Hajime Maeno, Katsuhiko Katagiri
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Patent number: 6971640Abstract: An elastomeric sway bar bushing provides an improved and secure fit between a retention bracket and a motor vehicle sway bar under extreme temperature and mechanical conditions. Tab sections, ring sections, and a convex stability ridge extend from the bushing and firmly lock the bushing to both the retention bracket and the sway bar while maintaining ease of assembly, minimizing debris buildup, resisting thermal degradation. The ring sections serve an additional sacrificial function and maintain surface contact with the sway bar beyond the limits of the retention bracket.Type: GrantFiled: April 18, 2003Date of Patent: December 6, 2005Assignee: Research and Manufacturing Corporation of AmericaInventor: Jerry Joseph
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Patent number: 6959922Abstract: A transmission mount structure for mounting a transmission connected to an end of a transverse-mounted engine to a vehicle body includes an elastic main vibration-damping member for reducing both vibrations in a vertical direction and vibrations in a roll direction, and an elastic auxiliary vibration-damping member smaller in diameter or thickness than the main vibration-damping member and extending in a direction substantially perpendicular to the roll direction. The auxiliary vibration-damping member has a constricted portion formed at a longitudinal central portion thereof and having a smaller cross-section than any other part of the auxiliary vibration-damping member.Type: GrantFiled: September 4, 2003Date of Patent: November 1, 2005Assignee: Honda Giken Kogyo Kabushiki KaishaInventor: Tetsuya Miyahara
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Patent number: 6957727Abstract: An impact absorber for a vehicle includes an outer body including a cavity having an axis, and an inner body situated partially within the cavity for relative movement into the cavity when the absorber is subjected to an impact. The inner body has at least one lateral protrusion. A number of deformable units are located in the outer body at different positions along the cavity. The deformable units partially protrude into the cavity for successive engagements and deformations, one unit after another unit, along the cavity, by the protrusion of the inner body moving into the outer body, thereby absorbing the energy of an impact in different stages. Each deformable unit includes a rigid ball protruding into the cavity and a deformable plate fixed behind the ball.Type: GrantFiled: August 14, 2003Date of Patent: October 25, 2005Inventor: Kam Hang Leung
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Patent number: 6953187Abstract: An elastomer spring, particularly for rail vehicles, comprises a core made of metal or plastic; an outer sleeve that also consists of metal or plastic; a cushion made of elastomer material, in the form of a layered spring that is arranged between the core and the outer sleeve; as well as a base chamber that is configured below a core offset. The elastomer spring is configured in multiple steps in the vertical direction X, specifically consisting of at least a first spring and a second spring, whereby a chamber is present between two springs, in each instance.Type: GrantFiled: May 24, 2003Date of Patent: October 11, 2005Assignee: Phoenix AGInventors: Michael Groth, Andre Sanz
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Patent number: 6857623Abstract: A dynamic damper mounted on a rod-shaped oscillating member is disclosed which includes: a cylindrical metallic mass member formed of sintered metal or forging and disposed radially outwardly of the oscillating member; two elastic support members formed on axially opposite sides of the metallic mass member to elastically support the metallic mass member; and an elastic covering layer integrally formed with the elastic support member and fixed in close contact with the substantially entire area of the surface of the metallic mass member. The metallic mass member has bevels in the form of tapered cylindrical surfaces formed at radially inner edges of axially opposite end faces of said metallic mass member, respectively. Each of the bevels extends over a corresponding one of the axially opposite end faces and an inner circumferential surface of the metallic mass member to thereby chamfer the corresponding one of the radially inner edges.Type: GrantFiled: September 11, 2002Date of Patent: February 22, 2005Assignee: Tokai Rubber Industries, Ltd.Inventor: Naohito Kuwayama
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Patent number: 6857624Abstract: The present invention is a spring, comprising a support structure and a substantially straight walled, solid elastomeric column. The support structure has a continuous and selectively vented support wall and a base wherein the support wall has different minimum and maximum inside diameters. The elastomeric column has a diameter less than, equal to, or slightly larger than the minimum diameter of the support structure wall and a height greater than the height of the support structure.Type: GrantFiled: November 27, 2002Date of Patent: February 22, 2005Assignee: The Goodyear Tire & Rubber CompanyInventor: Joseph Raymond Landry, Jr.
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Publication number: 20040251586Abstract: A vibration isolator assembly, such as an isolator bushing or cradle mount, includes a housing and an isolator connected to the housing. A shaft assembly includes first and second mating components, the first component being connected to the elastomer and having a cavity of a first dimension for receiving the second component having a different, second dimension therein. The differing dimensions alter the stress characteristics of the vibration isolator assembly. In the preferred arrangement, the shaft assembly includes a first component comprising first and second portions, a thin layer of elastomer interposed between the first and second components and a second component which is inserted between the portions to relieve tensile stress in the isolator and, if desired, to impart a compressive stress in the isolator. The thin layer of elastomer permits the first components to be made more economically.Type: ApplicationFiled: April 21, 2004Publication date: December 16, 2004Applicant: Cooper Technology Services, LLCInventors: Douglas Power, Bernie Rice
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Publication number: 20040251585Abstract: A vibration isolator assembly, such as an isolator bushing or cradle mount, includes a housing and an isolator connected to the housing. A shaft assembly includes first and second mating components, the first component being connected to the elastomer and having a cavity of a first dimension for receiving the second component having a different, second dimension therein. The differing dimensions alters the stress characteristics of the vibration isolator assembly. According to a preferred method of altering stress characteristics of a vibration isolator assembly, the method includes the steps of forming a cavity in the shaft and varying a dimension of the shaft to alter the spring rate characteristics. In the preferred arrangement, the shaft assembly includes a split, first component and a second component is inserted between the split portions to relieve tensile stress in the isolator and, if desired, to impart a compressive stress in the isolator.Type: ApplicationFiled: June 10, 2003Publication date: December 16, 2004Applicant: Cooper Technology Services, LLCInventors: Douglas Power, Bernie Rice, Robert Paladichuk
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Patent number: 6823960Abstract: A small vehicle has an engine mounted to a frame assembly. The engine is mounted by a plurality of engine mounts. The engine mounts are seven times stiffer in compression and tension than in shear. The engine mounts have a block of resilient material that separates a pair of plates. The block can be any shape but a rectangular parallelepiped is preferred. The engine mounts are mounted on cylinders defined with a center axis that extends through a center of gravity of the engine in a direction parallel to an axis about which the crankshaft rotates.Type: GrantFiled: April 9, 2002Date of Patent: November 30, 2004Assignees: Yamaha Hatsudoki, Kabushiki KaishaInventors: Katsuhisa Shimizu, Kazuhiko Izumi
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Patent number: 6810953Abstract: A shock absorber for use between the reciprocating member of an oil well pumping mechanism and a polish rod connected to the rod spring and movable along a vertical pumping axis. The shock absorber comprises an upper and lower end plate having a peripheral surface around the plumping axis and defining a polish rod clearance opening. A coil spring is located between the plates and is concentric with and surrounding the pumping axis. A friction reducing centering head secured to at least one of the plates (preferably the lower plates) centers polish rod in the clearance opening and holds the polish rod away from the peripheral wall of the plate.Type: GrantFiled: February 7, 2003Date of Patent: November 2, 2004Assignee: Barnes Group, Inc.Inventor: Jack W. Adoline
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Patent number: 6802498Abstract: A cylindrical mounting apparatus includes: a cylindrical mount having an elastic body elastically connecting an inner and outer sleeve disposed in mutually spaced-apart relation; and a bracket independent of the cylindrical mount and having a pair of support plates opposed to each other with a spacing therebetween. The mount is interposed between the pair of support plates and fastened to the bracket by a mounting bolt extending through a bore of the inner sleeve across the support plates. Two positioning protrusions protrude from an inside surface of one support plate toward the other, and a mounting plate is disposed on one axial end of the inner sleeve extending diametrically. A recessed engaging portion of the mounting plate is brought into engagement with the positioning projections to place the mounting plate in a predetermined position about its center axis on the support plate.Type: GrantFiled: April 30, 2003Date of Patent: October 12, 2004Assignees: Tokia Rubber Industries, Ltd., Nissan Motor Co., Ltd.Inventors: Takashi Makino, Akihiro Mayama
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Publication number: 20040183242Abstract: An impact absorption device is provided having a generally cylindrically shaped impact absorption member formed of an extruded material. The exterior wall defines an interior volume and further includes a flanged portion that extends to at least one end of the absorption member. A bracket assembly is removably secured to the flanged portion of the mounting member for attaching the impact absorption device to a freestanding object such as a piling or docking post. Due to the design of the flange of the absorption member, a plurality of members may be coupled together using an appropriately designed bracket for accommodating the cover of pilings of docking posts of various lengths.Type: ApplicationFiled: January 28, 2004Publication date: September 23, 2004Inventor: Wylie Chase
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Publication number: 20040178551Abstract: An antivibration device is mounted between a motor unit (1) having an internal combustion engine (2) and a vibration-insulated unit (3) of a portable handheld work apparatus (4) such as a motor-driven chain saw, cutoff machine, suction/blower apparatus or the like. The antivibration device (5) includes a vibration damper (6) made of foamed elastic material (7).Type: ApplicationFiled: February 10, 2004Publication date: September 16, 2004Inventors: Johannes Menzel, Markus Keller, Helmut Lux, Christoph von Hiller, Gunter Wolf, Andreas Guip
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Patent number: 6783835Abstract: A bulk modulus elastomeric element is employed in the present invention. The material from which the invention is fabricated is formed as a sheet, which has a plurality of channels that run through, or partially through it. The holes in the sheet are angled such that the remaining material may be of a parallelogram shape. The top and bottom surfaces of the particular element may be rectangular, circular, hexagonal, or other shapes, since the shape of the end surface is not important to the invention. An edge of an upper end surface is displaced from a remote edge of the lower surface so that a vertical line from one edge normal to the upper surface, is displaced from the remote edge of the lower surface, so that it preferably does not intersect any part of the lower surface when no forces are applied to the surfaces. However, in some instances, under load, a small overlap at the cross-sectional areas of the upper surface and lower surfaces, may be desirable.Type: GrantFiled: April 16, 2002Date of Patent: August 31, 2004Assignee: Lockheed Martin CorporationInventors: Trevor J. McCollough, Wesley E. Revely
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Publication number: 20040150147Abstract: A bearing for wheel suspensions in a motor vehicle includes a metallic housing with a pot-shaped vertical section, a rubber buffer arranged in the housing, and an inner part. The inner part can be connected to a piston-and-cylinder unit and is fixed in the rubber buffer. A reinforcing part, which is supported axially and/or radially at the inner wall of the housing, is arranged in the rubber buffer.Type: ApplicationFiled: January 20, 2004Publication date: August 5, 2004Inventor: Christof Schafer
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Patent number: 6755402Abstract: An elastomer isolator mount that can provide both compressive support and shear support to enable the elastomer isolator mount to attenuate shock and vibration forces to an object carried by the elastomer isolator mount with the ratio of compressive support to shear support controllable by the diameter of a plurality of angled holes in relation to width of a top support surface and the dynamic response characteristics of the elastomer isolator mount further controllable by selecting the shape of the sidewalls of the elastomer isolator mount. A plurality of elastomer isolator mounts can be further arranged in a group to provide a support platform for an object.Type: GrantFiled: February 8, 2001Date of Patent: June 29, 2004Assignee: Lockheed Martin CorporationInventors: Trevor J. McCollough, Richard L. Cellini
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Patent number: 6755403Abstract: A stabilizer bar assembly has a stabilizer bar and a pair of bushing assemblies. Each bushing assembly has an elastomeric bushing disposed around the stabilizer bar and an outer metal member disposed around the elastomeric bushing. The outer metal member compresses the elastomeric bushing between the stabilizer bar and the outer metal member to a prespecified percent of compression. When the stabilizer bar rotates with respect to the outer metal member, the compression of the elastomeric bushing stops movement between the elastomeric bushing and the stabilizer bar and between the elastomeric bushing and the outer metal member. A fastening strap is attached to the outer metal member to attach the stabilizer bar assembly to a vehicle.Type: GrantFiled: February 13, 2002Date of Patent: June 29, 2004Assignee: The Pullman CompanyInventors: James Lewis, Richard Novy, Robert Missig