Having Concentric Coaxial Spring Between Plural Confining Means For Radial Force Patents (Class 267/140.12)
  • Publication number: 20080054539
    Abstract: A bushing includes a hollow shell including an inner surface having central axis, and a sleeve surrounded by the shell. First members are each spaced angularly about the axis, contact the inner surface along the shell, contact and extend along the sleeve, and extend radially between the shell and the sleeve. Second members are each spaced angularly about the axis, releasably secured to the inner surface along the shell, spaced angularly from the first members, extend radially from the inner surface toward the sleeve, and spaced radially from the sleeve.
    Type: Application
    Filed: September 6, 2006
    Publication date: March 6, 2008
    Inventors: Peter H. Hodges, Michael Choi, Phillip J. Kurrle
  • Patent number: 7306208
    Abstract: A vehicle roll-rod includes a front insulator, rear insulator, rod, front stopper, rear stopper, and middle stopper. The roll-rod restrains and attenuates rolling of relatively small movements occurring during driving. The vehicle roll-rod also restrains and attenuates rolling of large movements occurring in the event of a force of impact and vibration during rapid accelerations, sudden stops, or turning on/off the ignition key of the engine.
    Type: Grant
    Filed: November 8, 2004
    Date of Patent: December 11, 2007
    Assignee: Hyundai Motor Company
    Inventor: Dong-Jin Hwang
  • Publication number: 20070278724
    Abstract: A vibration-sensitive module having a mounting flange is mounted to a vibrational base with a bushing assembly secured to the base, where the mounting flange has cammed surfaces radially adjacent to the bushing assembly that variably engage the radial peripheries of the bushings in response to vibrational movement of the base. The cammed surfaces produce a desired force vs. deflection characteristic of the mounting apparatus, and the bushing material retains its compressibility under load to minimize cross-coupling of vibrational force impulses.
    Type: Application
    Filed: May 16, 2006
    Publication date: December 6, 2007
    Inventor: Morris D. Stillabower
  • Patent number: 7290644
    Abstract: In an engine mount (A) whose axis (X) is oriented in the front to rear direction of a vehicle, a damper weight (12) is embedded within a toroidal stopper rubber (10) fixed at its inner periphery to the rear end of an inner cylinder (2). The damper weight (12) is made of, for example, steel plate to have a spiral form and placed to surround the inner cylinder (2), thereby itself functioning as a spring in the direction of the axis (X). This structure can ensure a necessary mass for the damper weight while saving space, and prevent the occurrence of an uncomfortable shock when a stopper works.
    Type: Grant
    Filed: June 10, 2005
    Date of Patent: November 6, 2007
    Assignee: Kurashiki Kako Co., Ltd.
    Inventor: Kazuo Miyake
  • Patent number: 7275738
    Abstract: A cylindrical fluid-filled vibration-damping device including a rubber elastic body elastically connecting an inner and intermediate cylindrical sleeve having an opening portion defined by ring portions and a connecting portion, and an outer cylindrical sleeve disposed on the intermediate sleeve, thereby forming a primary fluid chamber filled with a fluid inside an recessed portion of the rubber elastic body, an auxiliary fluid chamber filled with the fluid and defined by a diaphragm portion and an orifice passage connecting the primary fluid chamber and auxiliary fluid chamber between itself and the connecting portion.
    Type: Grant
    Filed: April 12, 2005
    Date of Patent: October 2, 2007
    Assignee: Tokai Rubber Industries, Ltd.
    Inventor: Tadamitsu Minamisawa
  • Publication number: 20070216075
    Abstract: A construction of a fluid-filled vibration damping device provided with an air chamber for applying an air pressure capable of increasing the pressure of a fluid in a fluid chamber is realized advantageously in industry. An air chamber is formed between a cylindrical member and a bottom member forming a second mounting member, and a seal protrusion that is caused to fall easily to the inside of the air chamber is interposed between these elements. In the state in which the air chamber is formed, the cylindrical member and the bottom member are brought close to each other and lapped on each other, by which the volume of the air chamber is decreased by an amount corresponding to the approach amount of the elements and the volume amount of the seal protrusion entering into the air chamber due to falling, and thereby the internal pressure of the air chamber is increased.
    Type: Application
    Filed: January 24, 2007
    Publication date: September 20, 2007
    Applicant: Tokai Rubber Industries, Ltd.
    Inventor: Yuichi Ogawa
  • Patent number: 7267332
    Abstract: A hydraulic vibration isolator with sub-orifices having each rubber valve is provided, such that is aimed at ensuring a sufficient orifice length for a main orifice (22). An intermediate cylinder (32) disposed between an inner and an outer cylinders (12, 14) is comprised of fitting peripheral walls (34, 36) at both ends and joining walls (38, 40) between them; a first and a second liquid chambers (18, 20) are delimited by a vibration-isolating base body (16) interconnecting the joining walls and the inner cylinder; the fitting peripheral walls and the inner cylinder are interconnected by end walls (42) of rubber-like elastomer, and orifice-forming parts (44, 46) are provided on the outer surface sides of the joining walls. At the orifice-forming parts, a channel (50) having a first rubber valve (24) forming a first sub-orifice (26), a channel (56) having a second rubber valve (28) forming a second sub-orifice (30), and fitting recessed portions (48, 54) are provided.
    Type: Grant
    Filed: September 12, 2005
    Date of Patent: September 11, 2007
    Assignee: Toyo Tire & Rubber Co., Ltd.
    Inventors: Akihiko Kato, Masayuki Toi
  • Patent number: 7246807
    Abstract: A vibration damping device for use in a automotive suspension system, adapted to be disposed at a linking portion between a body of the vehicle and a suspension member that connects and supports a wheel on the body is disclosed. The vibration damping device comprises a load sensing unit adapted to sense a signal corresponding to a load exerted between the body and the suspension member. A suspension system equipped with the same is also disclosed.
    Type: Grant
    Filed: January 2, 2007
    Date of Patent: July 24, 2007
    Assignees: Tokai Rubber Industries, Ltd., Sumitomo Electric Industries, Ltd., Sumitomo Rubber Industries, Ltd.
    Inventors: Akira Katagiri, Shiro Nakajima, Yasuhiro Kubota
  • Patent number: 7243894
    Abstract: The invention is a mounting system for a vibrational element. The vibrational element has a longitudinal axis, an outer surface and an axial displacement node. The mounting system includes an isolation member which has an isolation surface, an isolating body, and an engaging portion. The engaging portion is immovably secured to the isolation member and extends radially inward from the isolation body at a point radially opposite the isolation surface. The engaging portion is disposed so as to engage the outer surface of the vibrational element. Radial displacements of the vibration element are substantially decoupled from the isolation surface through the engaging portion.
    Type: Grant
    Filed: April 22, 2002
    Date of Patent: July 17, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Gopal B. Haregoppa, Satinder K. Nayar, Donald S. Oblak, Ronald W. Gerdes
  • Patent number: 7219882
    Abstract: A fluid-filled vibration damping bushing including an inner tubular metal member and an outer peripheral sleeve elastically connected via a base rubber interposed therebetween with first and second fluid chambers formed therein. A stopper rubber constituted as a separate element from the base rubber, disposed at a circumferential location corresponding at a minimum to either the first or second fluid chamber, for restricting relative displacement of the inner tubular metal member and outer tubular metal member in an axis-perpendicular direction. The stopper rubber is formed separately from an orifice member and bonded to one axial end portion of the outer tubular metal member at a location outside the first and second fluid chambers so as to face toward the inner tubular member. The outer tubular metal member with the stopper rubber attached thereto is inserted onto the outer peripheral sleeve from the other axial end thereof.
    Type: Grant
    Filed: July 1, 2005
    Date of Patent: May 22, 2007
    Assignee: Tokai Rubber Industries, Ltd.
    Inventor: Kazuhiko Kato
  • Patent number: 7204479
    Abstract: 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: Grant
    Filed: June 10, 2003
    Date of Patent: April 17, 2007
    Assignee: Cooper-Standard Automotive Inc.
    Inventors: Douglas Power, Bernie Rice, Robert Paladichuk
  • Patent number: 7198256
    Abstract: A bush-type rubber mount is provided, preferably a hydraulically damping rubber mount, with a, preferably tubular, metallic inner part, an elastomeric mount body surrounding the inner part and connected to it by vulcanization. An outer sleeve accommodates the inner part. The inner part has, in an axial section, two radially outwardly extending elevations located opposite each other on its circumference and are completely embedded in the elastomer. Two elastomer recesses extend in a kidney-shaped pattern in relation to the circumference of the mount body between the elevations and pass axially through the mount body. The two elastomer recesses are arranged in the elastomeric mount body near the inner part, so that the inner part standing free in relation to the outer sleeve in the area of the kidneys is connected to the mount body essentially only via the elevations on the mount body. A defined cardanic axis extending through the apices of the elevations is formed at right angles to the axis of the mount.
    Type: Grant
    Filed: June 19, 2002
    Date of Patent: April 3, 2007
    Assignee: ZF Lemförder Metallwaren AG
    Inventors: Alfred Tatura, Claudia Hoping
  • Patent number: 7192013
    Abstract: A main liquid chamber and a secondary liquid chamber are formed on both sides of an engine side mounting member to interpose the engine side mounting member. A rubber is vulcanized and molded integrally with the engine side mounting member. A car body side mounting member is injection molded of resin material in a state where the rubber, a pipe for molding a communication hole and the caulk fittings for caulking and fixing a lid member for closing an opening portion leading to one of the main liquid chamber and the secondary liquid chamber and provided in the car body side mounting member are disposed within an injection mold.
    Type: Grant
    Filed: April 7, 2004
    Date of Patent: March 20, 2007
    Assignee: Honda Motor Co., Ltd.
    Inventor: Tetsuya Miyahara
  • Patent number: 7178818
    Abstract: A vibration damping device for use in a automotive suspension system, adapted to be disposed at a linking portion between a body of the vehicle and a suspension member that connects and supports a wheel on the body is disclosed. The vibration damping device comprises a load sensing unit adapted to sense a signal corresponding to a load exerted between the body and the suspension member. A suspension system equipped with the same is also disclosed.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: February 20, 2007
    Assignees: Tokai Rubber Industries, Ltd., Sumitomo Electric Industries, Ltd., Sumitomo Rubber Industries, Ltd., Advics Co., Ltd.
    Inventors: Akira Katagiri, Shiro Nakajima, Yasuhiro Kubota
  • Patent number: 7175150
    Abstract: A compound vibration damper assembly includes a vertical damping unit fixedly connected at a lower end to a locating surface for absorbing a Z-direction vibration force transmitted to a target apparatus, and a horizontal damping unit connected at a lower end to an upper end of the vertical damping unit and at an upper end to a bottom of the target apparatus for absorbing X- or Y-direction vibration force transmitted to the target apparatus. The vertical damping unit includes a locating base, a central column, a supporting plate, and a vertical vibration force damping member disposed between the supporting plate and the locating base; and the horizontal damping unit includes an horizontal vibration force damping member located between an elastomeric base plate and an elastomeric top plate.
    Type: Grant
    Filed: May 24, 2004
    Date of Patent: February 13, 2007
    Assignee: Mitac Technology Corp.
    Inventor: Ching-Hsung Chi
  • Patent number: 7137624
    Abstract: A fluid-elastomeric damper assembly operable for damping relative motion between a first structure and a second structure including a housing structure grounded to the first structure and a plurality of elastomer seals coupled to the housing structure, the housing structure and the plurality of elastomer seals defining a fluid-elastomeric chamber operable for containing a fluid. The fluid-elastomeric damper assembly also including one or more piston structures disposed within the housing structure and the fluid-elastomeric chamber, the one or more piston structures grounded to the first structure and driven by the second structure, and the one or more piston structures each including a first substantially fluid-filled chamber and a second substantially-fluid-filled chamber in communication via an orifice, the first substantially fluid-filled chamber and the second substantially fluid-filled chamber also in communication with the fluid-elastomeric chamber.
    Type: Grant
    Filed: November 6, 2003
    Date of Patent: November 21, 2006
    Assignee: Lord Corporation
    Inventors: Donald Russell, Peter Jones, Eric Seitter
  • Patent number: 7125048
    Abstract: A vibration dampener for a vehicle to militate against vibration which results in undesirable noise. In an embodiment, the dampener is used in a steering column in the vehicle to militate against the vibration being transmitted to the hands of a driver during operation of the vehicle.
    Type: Grant
    Filed: November 6, 2002
    Date of Patent: October 24, 2006
    Assignee: Lear Corporation
    Inventors: Joseph J. Davis, Jr., Sarkis B. Mikhjian, Wael Youssef-Agha, Michael J. Hier
  • Patent number: 7114712
    Abstract: 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: Grant
    Filed: June 28, 2004
    Date of Patent: October 3, 2006
    Assignee: The Pullman Company
    Inventors: James Lewis, Richard Novy, Robert Missig, Robert Ferguson, Andrew Franzen
  • Patent number: 7104533
    Abstract: A cylindrical vibration-damping device includes: a rubber bushing having a rubber elastic body elastically connecting an inner sleeve and a resin outer sleeve; a rigid mounting member having a cylindrical bore into which the rubber bushing is press fit; an engaging stepped face formed on an inner surface of the mounting member; and an engaged stepped face produced on an outer surface of the outer sleeve once the outer sleeve is press fit into the cylindrical bore of the mounting member, by means of elastic deformation of the outer sleeve. The engaged stepped face is opposed to the engaging stepped face in an axial direction of the device, and is brought into engagement with the engaging stepped face so as to exhibit a resistance to dislodging of the rubber bushing from the mounting member in at least one of opposite axial directions. The method of producing the same is also disclosed.
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: September 12, 2006
    Assignee: Tokai Rubber Industries, Ltd.
    Inventors: Kazuhiko Kato, Junichiro Suzuki, Naoki Nishi
  • Patent number: 7100909
    Abstract: A fluid-filled cylindrical vibration damping device comprising: an elastic body connecting an inner shaft member and an outer sleeve member; a non-compressible fluid-sealing region formed between the inner shaft member and the outer sleeve member; a stop rubber member disposed within the fluid-sealing region and projecting form one of the inner shaft member and the outer sleeve member toward an other of the inner shaft member and the outer sleeve member; and a rigid restricting member bonded to a projecting end portion of the stop rubber member. The stop rubber member extends to a front surface of the rigid restricting member so as to form an abutment rubber projecting from an outer peripheral portion of the front surface so that the projecting end portion of the stop rubber member is brought into abutting contact with the other of the inner shaft member and the outer sleeve member with the abutment rubber.
    Type: Grant
    Filed: May 19, 2004
    Date of Patent: September 5, 2006
    Assignee: Tokai Rubber Industries, Ltd.
    Inventor: Tatsuya Ito
  • Patent number: 7097167
    Abstract: A work chamber is filled with a hydraulic liquid and is disposed between the legs of the spring body of a hydraulic radial bearing. The work chamber is connected to a compensating chamber via a transfer channel. The desired absorption of disturbing noises in the region of 130 Hz is obtained with a special dimensioning of the cross-sectional area of the work chamber, the dynamic swell stiffness of the spring body and the length (L) and the total cross-sectional area (A2) of the transfer channel. The ratio of the effective cross-sectional area (A1) of the work chamber to the cross-sectional area (A2) of the channel lies preferably between 0.1 and 10 while the ratio of the length (L) of the transfer channel to the total cross-sectional area (A2) of the transfer channel is in the range of 0.1 to 4.0.
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: August 29, 2006
    Assignee: ContiTech Vibration Control GmbH
    Inventors: Matthias Richter, Falk Berge, Meinert Holst, Jürgen Roos
  • Patent number: 7090208
    Abstract: A bushing assembly for a vehicle suspension system includes first and second bushing components that are fixed to a central pin. The pin is supported on a suspension component and includes pin ends that are mounted to an axle housing component. A washer is supported on the pin between the first and second bushings and abuts against inboard edges of the first and second bushings. An outer retaining tube surrounds the first and second bushings and the washer. The outer retaining tube includes opposing deformed end portions that directly engage outboard edges of the first and second bushings to form axial load carrying surfaces for the first and said second bushings.
    Type: Grant
    Filed: January 26, 2005
    Date of Patent: August 15, 2006
    Assignee: ArvinMeritor Technology, LLC
    Inventor: Robert Michael Kiddle
  • Patent number: 7063310
    Abstract: 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: Grant
    Filed: April 21, 2004
    Date of Patent: June 20, 2006
    Assignee: Cooper-Standard Automotive Inc.
    Inventors: Douglas Power, Bernie Rice
  • Patent number: 7052002
    Abstract: A vibration damping device includes an inner cylinder member having a first outer flange extending diametrically outward from its one axial end; an outer cylinder member having a second outer flange extending diametrically outward at its one axial end; and a rubber elastic body elastically connecting the inner cylinder member and the outer cylinder member, while having an end section sandwiched between sandwiched between the first and second outer flanges. The rubber elastic body is provided with hollow portions recessed diametrically inward from an outside periphery of the first outer flange at three or four locations in a circumferential direction of the end section of the rubber elastic body.
    Type: Grant
    Filed: February 2, 2005
    Date of Patent: May 30, 2006
    Assignee: Tokai Rubber Industries, Ltd.
    Inventors: Kenichiro Imaeda, Hiroaki Hori
  • Patent number: 7044455
    Abstract: A fluid-filled vibration-damping device including a first and a second mounting members elastically connected by an elastic body such that the first mounting member is located on the side of one open end of a cylindrical portion of the second mounting member. The elastic body partially defines a primary fluid chamber formed in the cylindrical portion of the second mounting member and held in fluid communication with an auxiliary fluid chamber through a first orifice passage, and includes a pair of working fluid chambers held in fluid communication through a second orifice passage. Each working fluid chamber is partially defined by an axially outer elastic wall portion and an axially inner elastic wall portion whose spring constant in a radial direction is larger than that of the axially outer wall portion.
    Type: Grant
    Filed: April 22, 2002
    Date of Patent: May 16, 2006
    Assignee: Tokai Rubber Industries, Ltd.
    Inventors: Takashi Yoshida, Mitsuhiro Ogawa
  • Patent number: 7036803
    Abstract: The present invention relates hydraulic mounts for mounting between two rigid elements, such as an engine and a vehicle frame, so as to damp and filter vibrations occurring essentially in a main direction, between said elements, the mount comprising: first and second brackets intended to be fixed respectively to the first and second rigid elements, a primary elastomeric member connecting the first and second brackets, a rate chamber having a volume filled with fluid and delimited with a secondary elastomeric member having at least a first and a second walls movable respectively with said first and second brackets when said first and second brackets moves one with regard to the other, at least one bellow communicating with said rate chamber, each bellow and the rate chamber being able to bulge independently of the primary elastomeric member deformation, and a selectively operable control valving unit for controlling the fluid motion between said rate chamber and each bellow.
    Type: Grant
    Filed: May 6, 2004
    Date of Patent: May 2, 2006
    Assignee: Paulstra CRC
    Inventors: Clayton Maas, Randy Phinney, Leon Clinard
  • Patent number: 7021613
    Abstract: A toe correction bushing (1) is composed of a main body (2) and a stopper member (3), wherein the main body (2) is integrally provided with an inner cylinder (4), an outer cylinder (5), and an elastic body (6). The outer cylinder (5) is provided at part of the axial end with an outwardly opening inclined section (7). A recessed space (8) is provided inside of the inclined section (7). The stopper member (3) is provided with a circular plate section (20) and a stopper projection (23) at the peripheral section thereof. A boss (21) provided at the central section of the stopper member (3) is press-fitted into one end of the inner cylinder (4) for integration and at the same time, the stopper projection (23) is caused to engage the recessed space (8). When a lateral force F to the right is applied to the outer cylinder (5), the axial movement of the outer cylinder (5) is controlled by the stopper projection (23) and displaced in the direction perpendicular to the axis by an inclined plane (24) for toe correction.
    Type: Grant
    Filed: February 27, 2003
    Date of Patent: April 4, 2006
    Assignee: Yamashita Rubber Kabushiki Kaisha
    Inventors: Masafumi Mikami, Katsutaka Momose
  • Patent number: 7014178
    Abstract: A hydraulically damping bush bearing is presented, in which an inner rubber mount, which comprises an essentially cylindrical or nearly cylindrical inner part (1) with an axial through hole (2), an outer sleeve (3) surrounding the inner part (1) as well as an elastomeric damping member (4), which is arranged between the inner part (1) and the outer sleeve (3) and is connected to them by vulcanization, is surrounded at its axial ends by chambers (5, 5?) for receiving a fluid damping agent, wherein the chambers (5, 5?) are formed by a hydraulic area, which is arranged separately around the rubber mount and which comprises a rigid channel carrier (6) pushed over the outer sleeve (3) of the rubber mount with a channel (7) for the flow-conducting connection of the chambers (5, 5?), an outer bush (8) supported axially on the channel carrier, and means (9, 9?) arranged axially on both sides of the rubber mount for closing the bush bearing, wherein the means (9, 9?) consist in their radially outer area of an elastome
    Type: Grant
    Filed: April 9, 2002
    Date of Patent: March 21, 2006
    Assignee: ZF Lemförder Metallwaren AG
    Inventors: Andreas Vossel, Andreas Rodenberg
  • Patent number: 6981696
    Abstract: A fluid-filled cylindrical vibration-damping device wherein an inner and an outer sleeve are elastically connected together at their axially upper ends by an elastic body, at their axially lower ends by a flexible layer, and at their axially intermediate portions by a flexible partition. A pressure-receiving chamber partially defined by the elastic body and an equilibrium chamber partially defined by the flexible layer are disposed on opposite sides of the flexible partition, and are held in fluid communication through an orifice passage defined by an orifice defining member attached to an axially intermediate portion of an inner circumferential surface of the outer sleeve. The flexible partition includes a cylindrical portion extending axially upwardly from an inner peripheral portion of the orifice defining member and an annular curved portion extending radially inwardly from the upper end of the cylindrical portion to be fixed to the inner sleeve.
    Type: Grant
    Filed: July 2, 2003
    Date of Patent: January 3, 2006
    Assignee: Tokai Rubber Industries, LTD
    Inventors: Motohiro Hatano, Jyoji Tsutsumida
  • Patent number: 6921066
    Abstract: A connector assembly/device for elastically connecting a steering wheel to a rotary member supported by a stationary member so the rotary member is rotatable upon rotation of the steering wheel, including a first member fixed to the rotary member for rotation therewith, a second member fixed to the steering wheel for rotation steering wheel, an elastic body interposed between the first and second members to elastically connect the first and second members, and a relative-rotation restrictor located between the first and second members, for restricting an amount of elastic deformation of the elastic body upon rotation of the second member relative to the first member, to restrict a maximum angle of relative rotation of the first and second members permitted by the elastic deformation of the elastic body, for thereby restricting a maximum angle of rotation of the steering wheel relative to the rotary member.
    Type: Grant
    Filed: September 15, 2003
    Date of Patent: July 26, 2005
    Assignee: Tokai Rubber Industries, Ltd.
    Inventor: Masaaki Hamada
  • Patent number: 6910670
    Abstract: A vertical mount rubber bushing including a rubber elastic body elastically connecting inner and outer sleeve, wherein the rubber elastic body having cross sectional shapes viewed in a first direction of prizing force input where rubber legs are affixed to an axially center portion of the inner sleeve and extend towards opposite axial ends of the inner sleeve, towards the outer sleeve and away from the inner sleeve to either axial side of the axially center portion, thereby forming depressed spaces partially defined by the rubber legs and situated on either axial side of the axially center portion, and viewed in a second direction orthogonal to the first direction, where main body rubber portions thicker than the rubber legs elastically connect the inner and outer sleeves while extending in the second direction with a shape generally increasing in length in an axial direction moving from the outer sleeve toward the inner sleeve.
    Type: Grant
    Filed: October 7, 2003
    Date of Patent: June 28, 2005
    Assignee: Tokai Rubber Industries, Ltd.
    Inventor: Kazuhiko Kato
  • Patent number: 6899323
    Abstract: In a so-called bulge type of vibration-isolating bushing wherein an annular cover made of a synthetic resin is provided as a bulge portion on an outer periphery of an axially central part of an inner cylinder, such a vibration-isolating bushing that is superior in buckling strength in the axial direction of the inner cylinder, low-cost, and advantageous in environmental aspect, while preventing any displacement of the annular cover is provided. To that end, a knurling is provided on an outer periphery of an axially central part of a metal pipe constituting the inner cylinder, preferably, together with a serration on an axial edge of the metal pipe; and the annular cover is secured to the outer periphery of the metal pipe inclusive of the knurling by molding of a synthetic resin.
    Type: Grant
    Filed: August 25, 2003
    Date of Patent: May 31, 2005
    Assignee: Toyo Tire & Rubber Co., Ltd.
    Inventors: Seiya Takeshita, Yasukuni Wakita
  • Patent number: 6883967
    Abstract: A center bearing assembly rotatably supports an intermediate portion of a vehicle driveshaft assembly during use. The center bearing assembly includes a rigid bracket that is secured to a support surface of the vehicle, a support member that is supported within the rigid bracket, and an annular bearing that is supported within the support member for rotatably supporting the intermediate portion of the vehicle driveshaft assembly. The support member is formed from a resilient material and has a cavity formed therein. A plurality of bladders is disposed within the cavity formed in the support member. Each of the bladders is filled with a quantity of a rheological fluid. Fluid communication between adjacent pairs of the bladders is provided by respective control valves. A control circuit is provided for selectively generating and applying an energy field to each of the control valves so as to vary the ability of the rheological fluid to flow therethrough between the associated pair of bladders.
    Type: Grant
    Filed: April 4, 2003
    Date of Patent: April 26, 2005
    Assignee: Torque-Traction Technologies, Inc.
    Inventors: Scott B. Robb, James A. Duggan
  • Patent number: 6854723
    Abstract: An outer sleeveless type resilient bush wherein a resilient body fixed to the outer circumference of an inner sleeve is brought into contact with the inside face of a support hole of an article to be supported, an inserted sleeve being embedded in the resilient body, axial notches and split grooves are respectively formed on the inserted sleeve and the resilient body. flanges that bend in the diametrically outwards direction are formed at both ends of the inserted sleeve, and arranged to extend outwards in the diametrically outwards direction and the flange at one end is made capable of reduction in diameter, so that the resilient bush can be inserted into the support hole from the side of this flange, and resistance to withdrawal from the support hole can be increased and performance is improved by making the initial compression ratio of the resilient body large.
    Type: Grant
    Filed: July 12, 2001
    Date of Patent: February 15, 2005
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Tetsu Ogawa, Kazutaka Suzuki, Keiichi Sunami
  • Patent number: 6845994
    Abstract: A stabilizer bar assembly for an automotive vehicle includes a stabilizer bar, a bushing mounted to the stabilizer bar that has a first stiffness in a first radial plane, and a second stiffness in a second radial plane approximately perpendicular to the first radial plane, a bushing retainer in mechanically compressive engagement with the bushing such that the bushing is in frictional engagement with the stabilizer bar, thereby preventing relative movement of the bushing and the stabilizer bar, and a mounting bracket adapted to connect the stabilizer bar to the automotive vehicle.
    Type: Grant
    Filed: October 16, 2002
    Date of Patent: January 25, 2005
    Assignee: Visteon Global Technologies, Inc.
    Inventors: Haimian Cai, Xi Lin, Lakshmana Gummadi
  • Publication number: 20040262460
    Abstract: A hanger for an exhaust suspension has a mass dampener structure having a dampener mass with a central passage, an elastomer spring in the form of a sleeve received in the passage of the dampener mass and spring has an arrangement for connecting the mass dampener structure to a connecting pin. The mass dampener structure is connected to a first ring portion by an arrangement including a pair of elastomer arms. The elastomer spring is tuned to have a stiffness greater than the remaining portion of the hanger.
    Type: Application
    Filed: June 25, 2003
    Publication date: December 30, 2004
    Inventors: Pal Molnar, Gang Lu, Paul Wolfe, Miguel Oseguera, Udo Gartner, Laszlo Bezi, Laszlo Remsei, Ludmilla Rafas
  • Publication number: 20040251586
    Abstract: 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: Application
    Filed: April 21, 2004
    Publication date: December 16, 2004
    Applicant: Cooper Technology Services, LLC
    Inventors: Douglas Power, Bernie Rice
  • Publication number: 20040239020
    Abstract: A fluid-filled cylindrical vibration damping device comprising: an elastic body connecting an inner shaft member and an outer sleeve member; a non-compressible fluid-sealing region formed between the inner shaft member and the outer sleeve member; a stop rubber member disposed within the fluid-sealing region and projecting form one of the inner shaft member and the outer sleeve member toward an other of the inner shaft member and the outer sleeve member; and a rigid restricting member bonded to a projecting end portion of the stop rubber member. The stop rubber member extends to a front surface of the rigid restricting member so as to form an abutment rubber projecting from an outer peripheral portion of the front surface so that the projecting end portion of the stop rubber member is brought into abutting contact with the other of the inner shaft member and the outer sleeve member with the abutment rubber.
    Type: Application
    Filed: May 19, 2004
    Publication date: December 2, 2004
    Applicant: Tokai Rubber Industries, Ltd.
    Inventor: Tatsuya Ito
  • Publication number: 20040232607
    Abstract: A vibration-damping link including a flex fitted into an end sleeve. Resistance to a force tending to disengage the flex from the sleeve is increased by performing punching around the flex.
    Type: Application
    Filed: February 27, 2004
    Publication date: November 25, 2004
    Inventors: Laurent Bodin, Arnaud Lede
  • Publication number: 20040201152
    Abstract: A main liquid chamber 26 and a secondary liquid chamber 27 are formed on both sides of an engine side mounting member 11 to interpose the engine side mounting member 11. A rubber 13 is vulcanized and molded integrally with the engine side mounting member 11. A car body side mounting member 12 is injection molded of resin material in a state where the rubber 13, a pipe 17 for molding a communication hole 17a and the caulk fittings 22, 22 for caulking and fixing a lid member 21 for closing an opening portion 19 leading to one of the main liquid chamber 26 and the secondary liquid chamber 27 and provided in the car body side mounting member 12 are disposed within an injection mold 45.
    Type: Application
    Filed: April 7, 2004
    Publication date: October 14, 2004
    Applicant: HONDA MOTOR CO., LTD.
    Inventor: Tetsuya Miyahara
  • Patent number: 6802497
    Abstract: An aggregate bearing (1) in bushing-form, having an outer ring (2) and an inner support element (4) and rubber springs (5, 6) arranged in-between, wherein the outer ring (2) is provided with cut-outs (10, 11) at least in the connecting regions (8, 9) of the rubber springs (5, 6), preferably in the main load direction (7); and the cut-outs (10, 11) are provided with end beads (12, 13) which project beyond the outer contour of the outer ring (2).
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: October 12, 2004
    Assignee: Carl Freudenberg KG
    Inventor: Werner Hettler
  • Publication number: 20040159992
    Abstract: A volume-changeable work chamber (10) is filled with a hydraulic liquid and is disposed between the legs (8a, 8b) of the spring body (8) of a hydraulic radial bearing (2). The work chamber (10) is connected to at least one compensating chamber (20a and/or 20b) via at least one transfer channel (14a and/or 14b). the desired absorption of disturbing noises especially in the region of 130 Hz is obtained with a special dimensioning of the cross-sectional area (piston surface, A) of the work chamber (10), the dynamic swell stiffness of the spring body (8) and the length (L) and the total cross-sectional area (A2) of the at least one transfer channel (14a and/or 14b). The ratio of the effective cross-sectional area (A1) of the work chamber (piston, 10) to the cross-sectional area (A2) of the at least one channel (14a and/or 14b) lies preferably between 0.
    Type: Application
    Filed: December 17, 2003
    Publication date: August 19, 2004
    Inventors: Matthias Richter, Falk Berge, Meinert Holst, Jurgen Roos
  • Patent number: 6755403
    Abstract: 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: Grant
    Filed: February 13, 2002
    Date of Patent: June 29, 2004
    Assignee: The Pullman Company
    Inventors: James Lewis, Richard Novy, Robert Missig
  • Patent number: 6752389
    Abstract: A mount comprising a unitary resilient member where the unitary resilient member comprises a spring portion, an intermediate stiffening portion and a damping layer, and the resilient member is compressible and extendible. The resilient member is substantially enclosed by a casing. The mount further includes damping means located in contact with said damping layer, the damping means providing damping in response to compression and extension of said resilient member.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: June 22, 2004
    Assignee: Lord Corporation
    Inventors: James R. Halladay, Wallace C. Flower, Roger Cook
  • Patent number: 6749186
    Abstract: A hydraulic bushing forms a mount between a first component and a second component by including a spring portion connected between a core and an inner structure. The spring portion includes a first spring portion for defining hydraulic fluid cavities and a fluid channel extending between the cavities, with the cavities located about a first portion of the core, and a second spring portion formed of microcellular polyurethane about a second portion of the perimeter. The first spring portion and the second spring portion are located in parallel to one another. In this way, vibrations of a load transferred through the hydraulic bushing between the core and the inner support structure can be damped at a predetermined low frequency by the rubber with hydraulic fluid cavities, while still allowing for isolating of higher frequencies by the microcellular polyurethane portion of the spring.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: June 15, 2004
    Assignee: Freudenberg-NOK General Partnership
    Inventors: Rod G. Hadi, Bjoern Oppermann, Andrew James Kropp
  • Patent number: 6729611
    Abstract: An antivibration sleeve comprising an inner strength member which extends longitudinally along a central axis, a rigid annular strength member surrounding the inner strength member, and an elastomer body which interconnects the two strength members. The strength members have respective wedge-shaped bearing zones placed in register with each other to compress the elastomer body when the antivibration sleeve is supporting a static axial load. The bearing zones of the annular strength member enabling passages to be formed between two hydraulic chambers defined by the elastomer body.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: May 4, 2004
    Assignee: Hutchinson
    Inventors: Alain Deschaume, Ali Medjani, Christophe Duvallet, André Girard
  • Patent number: 6715745
    Abstract: A liquid-sealed mount capable of obtaining excellent damping performance is provided. For this purpose, the mount includes an elastic body (16), a stud (13) penetrating through the elastic body, a case (51), which is in a cylindrical shape with one end side being opened and with a bottom face on the other end side, and houses a viscous liquid (L) inside, and in which the viscous liquid is scaled by fitting the elastic body and the stud into the opening at the one end side, a damping member (14) attached to the stud in a state in which the damping member submerges in the viscous liquid; and a wall surface of a portion of the case, which submerges in the viscous liquid, is formed so that an inner diameter gradually decreases toward a lower position and an angle of inclination is different in an upper part from a lower part; and an outer circumferential side surface of the damping member opposes the inclined surface of the case.
    Type: Grant
    Filed: September 10, 2002
    Date of Patent: April 6, 2004
    Assignees: Komatsu Ltd., Fukoku Co., Ltd.
    Inventors: Kuniaki Nakada, Mitsuo Kuzukawa
  • Publication number: 20040056397
    Abstract: A bush-type rubber mount is provided, preferably a hydraulically damping rubber mount, with a, preferably tubular, metallic inner part, an elastomeric mount body surrounding the inner part and connected to it by vulcanization. An outer sleeve accommodates the inner part. The inner part has, in an axial section, two radially outwardly extending elevations located opposite each other on its circumference and are completely embedded in the elastomer. Two elastomer recesses extend in a kidney-shaped pattern in relation to the circumference of the mount body between the elevations and pass axially through the mount body. The two elastomer recesses are arranged in the elastomeric mount body near the inner part, so that the inner part standing free in relation to the outer sleeve in the area of the kidneys is connected to the mount body essentially only via the elevations on the mount body. A defined cardanic axis extending through the apices of the elevations is formed at right angles to the axis of the mount.
    Type: Application
    Filed: March 3, 2003
    Publication date: March 25, 2004
    Inventors: Alfred Tatura, Claudia Hoping
  • Publication number: 20040046295
    Abstract: A vibration-damped rubber mount is provided to ensure good sliding friction properties over a broad spectrum of spring rigidities with a simple design in a vibration-damped rubber mount with an inner part, which is surrounded by an outer sleeve, where an elastomer ring body is provided between the inner part and the outer sleeve for vibration damping, it is proposed that the elastomer ring body (4) is arranged radially on the outside at the inner wall of the outer sleeve (3) and radially on the inside at a sleeve-like bearing shell (5), which slidingly cooperates with the inner part (1), forming a ball-and-socket joint.
    Type: Application
    Filed: June 4, 2003
    Publication date: March 11, 2004
    Inventor: Martin Rechtien
  • Patent number: 6702264
    Abstract: A hydraulic antivibration mounting comprises: an inner strength member; a cage comprising a tubular wall and a flange extending radially outwards from the tubular wall; a cylindrical outer strength member in which the cage is received and having a shoulder and a collar, the shoulder defining a channel filled with damping liquid and the collar being crimped directly to the flange; and an elastomer body connected to the inner strength member and to the cage and forming a sealing gasket for the channel between the collar and the flange.
    Type: Grant
    Filed: January 29, 2003
    Date of Patent: March 9, 2004
    Assignee: Hutchinson
    Inventors: Paul Mellon, Daniel Le Guillant