Structure Patents (Class 267/47)
  • Patent number: 11168756
    Abstract: An improved shock isolating mounting comprising at least three substantially U-shaped leaf spring members, each leaf spring member comprising at least two leafs arranged to define a space therebetween. In one arrangement, the respective at least three substantially U-shaped leaf spring members are arranged in an array having a substantially equal angular spacing between adjacent spring members.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: November 9, 2021
    Assignee: PUMPKIN MOUNTS, LLC
    Inventors: Phillip R. Thompson, Nicolas K. Misselbrook
  • Patent number: 11143268
    Abstract: A vibration isolation system includes multiple isolators between an inner object and an outer housing that surrounds the object. In one example the inner object may be a rack or container that holds electronics, such as printed circuit boards, and the outer housing may be a housing for a missile, such as a supersonic or hypersonic missile. The isolators have flexures to attenuate vibrations, isolating the inner object at least in part from vibrations encountered by the outer housing. The flexures may be oriented in different directions for different isolators to change the resonant frequency of the system for a given axis. In addition the isolators are able to compensate for differences in expansion between the inner object and the outer housing. The isolators may also include multi-part isolators that have spring-loaded wedge elements used to expand the isolators in one or more radial directions.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: October 12, 2021
    Assignee: Raytheon Company
    Inventors: Stephen J. Forgacs, Bradley E. Bergmann, Nicholas E. Kosinski
  • Patent number: 10890228
    Abstract: A vehicle spring for a spring system, includes a spring body (20) and is produced, in particular rolled, from a profiled bar (1) made of a flat steel bar, in particular spring steel, in a hot deformation process. The profiled bar (1) or the spring body (20) has at least one material recess (6) which is provided over the length of the profiled bar or the spring body at least in some regions. The cross-sectional shape of the profiled bar (1) can be the same over the entire length of the profiled bar, whereas the cross-sectional shape in the spring body (20) can vary over the length of the spring body.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: January 12, 2021
    Assignee: Hendrickson Commercial Vehicle Systems Europe GmbH
    Inventors: Gerhard Kuhnelt, Jorg Zamberger
  • Patent number: 10766327
    Abstract: A multi-plate spring suspension of composite material for a vehicle includes: a first bracket unit mounted to a rubber spring; a second bracket unit mounted to a trunnion base; and a plurality of composite springs manufactured by impregnating reinforcing fibers with resin, coupled to the first bracket unit and the second bracket unit at opposite ends thereof, respectively, and being vertically spaced apart from each other.
    Type: Grant
    Filed: November 4, 2018
    Date of Patent: September 8, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Seung Hyun Oh
  • Patent number: 10767720
    Abstract: A fiber-reinforced plastic leaf spring and a method for producing the fiber-reinforced plastic leaf spring are provided, which is suitable in particular for use in a motor vehicle. It has an elongate leaf spring main body which comprises a first eye bushing at a first end and a second eye bushing at a second end. The leaf spring main body and the first and second eye bushings are formed using at least a first layer and a second layer of a composite material. Each of the layers is guided along a centerline of the leaf spring main body to form the leaf spring main body and, to form the first and second eye bushings, is respectively wrapped around a bushing element having a first center axis and around a bushing element having a second center axis.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: September 8, 2020
    Assignee: Ford Global Technologies, LLC
    Inventor: Friedrich Peter Wolf-Monheim
  • Patent number: 10625553
    Abstract: A suspension system for a vehicle includes: a composite leaf spring having a protective member which covers an outer surface of the composite leaf spring; and an abrasion-preventing pad coupled to the composite leaf spring and shielding. The protective member and the abrasion-preventing pad are disposed at a portion of the composite leaf spring to which a U-bolt is mounted.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: April 21, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Tae Hyung Kim, Seung Hyun Oh
  • Patent number: 10371224
    Abstract: A spring, in particular a flat spring (5), for use in connection with a vehicle, has a middle region (6) which has a curve with a first curve direction, as well as two edge regions (7). In an unladen state, the edge regions (7) each have a curve with a second curve direction and vertices (10), with the second direction of curve being opposed to the first direction of curve. The flat spring (5) has a vertex axis (11) running through the vertices (10) of the curves of the edge regions (7). End regions (8) of the edge regions (7) are tilted away from the vertex axis (11) toward the side of the vertex axis (11) on which the middle region (6) lies.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: August 6, 2019
    Assignee: Hendrickson Commerical Vehicle Systems Europe GmbH
    Inventors: Séverin Marteau-Lorant, Sébastien Brogly
  • Patent number: 10136472
    Abstract: A terminal for mechanical support of a heating element, includes a base device, a mounting device, the mounting device adapted to support the heating element, and a support device connecting the base device to the mounting device, the support device allowing displacement of the heating element about a radial axis and less than about 10% displacement of the heating element about a tangential and/or axial axis.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: November 20, 2018
    Assignees: Plansee SE, Veeco Instruments Inc.
    Inventors: Arno Plankensteiner, Christian Feist, Vadim Boguslavskiy, Alexander I. Gurary, Chenghung Paul Chang
  • Patent number: 9902225
    Abstract: A cover is disclosed for a chassis control arm which includes at least one bearing mount for a control arm bearing. The cover is formed separately from the chassis control arm and covers in the installed state at least part of the underside of the chassis control arm. Arranged on the cover is an extension which is intended as buffer and extends from the cover in the direction of the control arm bearing.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: February 27, 2018
    Assignee: AUDI AG
    Inventors: Wolfgang Riegelsberger, Matthias Fuchs, Hans-Jürgen Langhoff, Bastian Bösl
  • Patent number: 9827821
    Abstract: A vehicle wheel suspension of a control blade design has three wheel-guiding control arms essentially oriented in the transverse direction of the vehicle and one longitudinal control arm fastened rigidly to the wheel carrier and barely limiting its transverse movement with respect to the vehicle body. The longitudinal control arm is constructed of a fiber composite material and is also rigidly fastened to the vehicle body and thereby takes over the function of a main spring between the wheel carrier and the vehicle body. Other than stop springs integrated in a vibration damper, no further main spring element is provided between the wheel carrier and the vehicle body.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: November 28, 2017
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventor: Johann Kettenberger
  • Patent number: 9662950
    Abstract: Energy storing suspension components for use in suspension systems for wheeled vehicles and trailers are disclosed. The energy storing suspension components include an axle seat portion, an end, and a limb extending between the axle seat portion and the end. The limb includes a first taper wherein the limb decreases in width as the limb extends toward the end, a second taper wherein the limb decreases in thickness as the limb extends toward the end, wherein along the limb there is at least a portion where both the first taper and second taper are present, and a third taper that is further from the axle seat portion than the first taper and wherein the limb increases in width as the limb extends toward the end. Also disclosed are combinations of bushings and energy storing suspension components having an end configured to include an eye.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: May 30, 2017
    Assignee: Hendrickson USA, L.L.C.
    Inventors: Andrew X. Rarey, Randy Zimmerman, Carmen D. Cardillo
  • Patent number: 9657799
    Abstract: A suspension sub-assembly includes a fiber reinforced polymeric (FRP) thermoplastic composite upper control arm/spring assembly having a control arm portion and a spring member portion. The suspension sub-assembly can tune roll stiffness of a vehicle during cornering. The FRP thermoplastic composite upper control arm/spring assembly comprises a thermoplastic matrix material reinforced with fibers embedded and aligned in the matrix of the assembly.
    Type: Grant
    Filed: August 14, 2015
    Date of Patent: May 23, 2017
    Assignee: PolyOne Corporation
    Inventors: Jonathan Spiegel, Benjamin D. Pilpel, Edward D. Pilpel, Michael Gordon
  • Patent number: 9597938
    Abstract: A composite leaf spring comprising a thermoplastic matrix material reinforced with fibers embedded and aligned in the matrix of the composite leaf spring.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: March 21, 2017
    Assignee: PolyOne Corporation
    Inventors: Jonathan Spiegel, Benjamin D. Pilpel, Edward D. Pilpel, Michael Gordon
  • Patent number: 9539670
    Abstract: An end-to-end tubular joint includes first locking pieces cut from the first tube and second locking pieces cut from the second tube, where the cuts have radial cut faces on the axially aligned cuts. The first and second locking pieces are interlocked with lateral extensions of the respective locking pieces bearing against one another and the radial cut surfaces distributed circumferentially around the joint so as to constrain relative movement between the parts. The first locking pieces are welded to the first tube and the second locking pieces are welded to the second tube to form a tube joint. An alternative forms cutouts in the first tube and fits locking pieces into the cutouts that are welded to a second member, such as a second tube or cylinder that fits into the first tube so as to form the tube joint.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: January 10, 2017
    Assignee: Creganna-Tactx Medical
    Inventors: Bernard McDermott, Adam Szczepanski
  • Patent number: 9370980
    Abstract: A leaf spring arrangement for a motor vehicle axle includes a leaf spring which is made of a fiber composite and has ends, each end having a flat underside to provide a joining surface. Bonded flatly by an adhesive against the underside of each end of the leaf spring in an area of the joining surface is a mount for attachment onto a further axle component. The mount has an opening for receiving a metallic bearing or screw bolt.
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: June 21, 2016
    Assignee: BENTELER AUTOMOBILTECHNIK GMBH
    Inventors: Rodscha Drabon, Christian Smatloch, Jürgen Von der Kall
  • Patent number: 9309947
    Abstract: When manufacturing a disk valve having a ring-shaped elastic seal member fixed to one side thereof for use in a cylinder type hydraulic shock absorber, a disk valve blanked from a plate material is set on a bottom of a lower mold member that is curved to be convex on one side. Mold clamping is performed to form a cavity by a cylindrical mold part and to press the disk valve with a press part to deform the disk valve into a shape that is convex on one side. In this state, the cavity is filled with a rubber material through a passage and vulcanized and cured to mold and fix an elastic seal member to the disk valve. At this time, the disk valve is deformed in a direction in which the curvature reduces by shrinkage of the rubber material.
    Type: Grant
    Filed: September 19, 2012
    Date of Patent: April 12, 2016
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Yasuyuki Kitagawa, Naoya Kubo
  • Patent number: 9168880
    Abstract: A panel assembly with a multi-layer patch may be used in any number of different applications in order to reduce noise or vibrations, provide thermal insulation, and/or improve the structural integrity of an underlying part. In an exemplary embodiment where the panel assembly is a vehicle part, the panel assembly includes a main panel, a primary adhesive layer, and a multi-layer patch that includes at least two individual patches and at least one auxiliary adhesive layer. The primary adhesive layer attaches the multi-layer patch to the main panel, and the auxiliary adhesive layer attaches the individual patches together. The size, shape, thickness and/or composition of the different layers of the multi-layer patch may be specifically chosen to exhibit certain sound and/or thermal damping properties.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: October 27, 2015
    Assignee: Shiloh Industries, Inc.
    Inventors: Michael C. Adams, Jonathan W. Fisk, James F. Keys
  • Patent number: 9050873
    Abstract: Suspension systems, leaf springs and methods of providing a leaf spring in a suspension system are disclosed. The suspension systems, leaf springs and methods of providing a leaf spring in a suspension system allow use of a lighter weight leaf spring while providing customized roll stiffness and vertical spring rate that are complemented by a bumper that engages the leaf spring assembly when compressed to at least a preselected position.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: June 9, 2015
    Assignee: HENDRICKSON USA, L.L.C.
    Inventors: Damon E. Dilworth, Andrew X. Rarey, Sammy C. Lumetta, Ashley T. Dudding
  • Patent number: 9022367
    Abstract: In a curved spring configured to generate, based on a relative approaching displacement of the one-side bearing section and the other-side bearing section in an approach/separation direction, an urging force in a separation direction in which a one-side bearing section and an other-side bearing section are separated from each other, a linear elastic body is provided to extend on a closed curve, which includes a one-side portion arranged along a circumferential direction of the one-side bearing section and an other-side portion arranged along a circumferential direction of the other-side bearing section, and to constitute elastic sections of two lines between the one-side portion and the other-side portion.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: May 5, 2015
    Assignee: Mitsubishi Steel Mfg. Co., Ltd.
    Inventor: Tetsuya Katsuta
  • Patent number: 9004464
    Abstract: A curved spring includes one and another end parts configured to approach and separate relative to each other in an approaching/separating direction and plural beam parts that bend between the one end part and the other end part and extend in an extending direction. The plural beam parts are arranged in a width direction orthogonal to the approaching/separating direction. At least one combination of adjacent beam parts among combinations of the plural beam parts includes an outer side beam part having a width greater than a width of an inner side beam part in the width direction. The outer side beam part has a length less than a length of the inner side beam part in the approaching/separating direction. The one and the other end parts and at least one beam part of the plural beam parts are integrally molded on a shared plane by a synthetic resin.
    Type: Grant
    Filed: August 2, 2011
    Date of Patent: April 14, 2015
    Assignee: Mitsubishi Steel Mfg. Co., Ltd.
    Inventors: Yuji Hazama, Kentaro Nagasawa, Toru Hirokane
  • Publication number: 20150091225
    Abstract: Leaf springs, and methods of manufacturing thereof, having first and second sections, spaced apart along the length of said leaf spring, said sections are through hardened and tempered to achieve, respectively different levels of finished through hardness, are disclosed.
    Type: Application
    Filed: September 29, 2014
    Publication date: April 2, 2015
    Inventors: William Wilson, Brian Farrell
  • Publication number: 20150069681
    Abstract: A leaf spring for a motor vehicle is made from a fiber composite component including individual fibers in form of at least two textile layers stacked on top of each other and a matrix made of a duroplastic or thermoplastic resin surrounding the fibers. The resin is hardened in a mold tool by applying pressure and heat. The stacked textile layers are formed inside a mold tool and fixed by a dry binder applied to at least one of the textile layers to form a dry preform. A fiber composite blank is stamped from the preform and subsequently infiltrated with the resin in a RTM cavity and hardened. The binder applied in dry form may only be arranged in certain areas of the textile layers.
    Type: Application
    Filed: November 14, 2014
    Publication date: March 12, 2015
    Inventor: ULRICH MÜLLER
  • Patent number: 8925909
    Abstract: In a leaf spring arrangement for a chassis of a motor vehicle, a leaf spring includes multiple layers made of a glass fiber composite plastic, a reinforcement made of a carbon composite plastic and being disposed between an upper and a lower one of the layers, and a core made of a different material than the reinforcement and being disposed between the upper and lower layers, wherein the reinforcement is arranged along a longitudinal a side of the core. The leaf spring is coupled at its center region to an axle of the motor vehicle by a center connection and to the vehicle body by bodywork connections, wherein the leaf spring is tilted by an angle relative to the vertical axis of the motor vehicle.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: January 6, 2015
    Assignee: Benteler SGL GmbH & Co. KG
    Inventors: Rodscha Drabon, Ulrich Mueller, Peter Stastny
  • Patent number: 8864117
    Abstract: A fiber reinforced plastic spring which enables prevention of breakage caused by compressive stress is provided, including a FRP spring that has a laminated structure having plural fibers which are different from each other in tensile modulus of elasticity and are laminated. An upper surface of the FRP spring is a surface to which a pulsating bending load is applied. An upper side region of each laminated structure is a compressive stress region at which compressive stress is generated. A lower side region of each laminated structure is a tensile stress region at which tensile stress is generated. Distribution of tensile modulus of elasticity of each laminated structure is asymmetric with respect to the neutral axis.
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: October 21, 2014
    Assignee: NHK Spring Co., Ltd.
    Inventors: Ryohei Shigematsu, Miho Nakazono
  • Publication number: 20140284856
    Abstract: A composite leaf spring comprising a thermoset matrix material reinforced with fibers embedded in the matrix of the composite leaf spring.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 25, 2014
    Applicant: GORDON HOLDINGS, INC.
    Inventor: Kevin E. Stay
  • Patent number: 8770558
    Abstract: A curved portion, with a curved cross section, is formed at the recess of the pad. The curved portion has a contact portion which contacts the leaf spring's tension surface, which faces the curved portion. The curved portion's thickness decreases from the contact portion to an end portion of the curved portion, thereby being spaced from the leaf spring's tension surface. In the pad, the height of the curved portion of the recess is set such that contact of the leaf spring's tension surface and the corner portion of the end portion of the curved portion can be avoided when the stroke length of the leaf spring's end portion is at maximum. Thus, the tension surface of the leaf spring is not worn by the corner portion of the end portion of the curved portion. As a result, breakage of the leaf spring caused by wear can be prevented.
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: July 8, 2014
    Assignee: NHK Spring Co., Ltd
    Inventor: Tsunefumi Kanematsu
  • Publication number: 20140027961
    Abstract: The invention provides a leaf spring system which supports a leaf spring assembly using attachment mechanisms which allows normal operation of the leaf spring assembly while providing support through a resilient deformable reinforcing spring.
    Type: Application
    Filed: January 13, 2012
    Publication date: January 30, 2014
    Applicant: Sax Suspension Technology Pty. Ltd.
    Inventor: John Molnar
  • Patent number: 8573568
    Abstract: A leaf spring attachment for connecting a leaf spring to an axle or frame of a motor vehicle includes a clamp to maintain the leaf spring under tension between elastomer bodies. At least one of the elastomer bodies is connected to the leaf spring by a material joint. The clamp is split to define an upper clamp member and a lower clamp member in opposition to the upper clamp member. The upper clamp member has a U-shaped configuration to embrace a topside and opposite length sides of the leaf spring. The lower clamp member includes a plurality of retention plates in spaced-apart relationship for connection with the axle by material joint. Screw fasteners are provided to secure legs of the upper clamp member to the lower clamp member.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: November 5, 2013
    Assignee: Benteler Automobiltechnik GmbH
    Inventors: Thomas Henksmeier, Erik Hochapfel, Waldemar Bera
  • Publication number: 20130049271
    Abstract: The invention relates to a leaf spring (1) for motor vehicles, which is made of a fiber-reinforced synthetic material and can absorb potentially occurring lateral forces and transfer them to a leaf spring receiving device, comprises a first end (2) and a second end (3), which can each be fixed in a leaf spring receiving device in a torsion-proof and non-displaceable manner, and a bending joint section (11), which can compensate for a change in length of a resilient section (8) of the leaf spring (1) during a load-induced deformation of the resilient section (8). The leaf spring (1) comprises a first spring limb (5) and a second spring limb (6) which are connected to each other via a transition section (7). In a non-loaded state, both the first spring limb (5) and the second spring limb (6) are approximately planar and disposed at an angle relative to each other. The first spring limb (5) forms the resilient section (8). The bending joint section (11) contains the second spring limb (6).
    Type: Application
    Filed: March 9, 2011
    Publication date: February 28, 2013
    Applicant: MUHR UND BENDER KG
    Inventors: Helmut Schürmann, Tobias Keller
  • Publication number: 20120315433
    Abstract: A die for producing pressed, fiber-reinforced plastic components, as well as a method for producing the plastic component, and the plastic component itself. The plastic components comprising at least two structural parts which overlap one another a pressing direction such that the die comprises at least one upper die portion formed with a pressing unit for applying a pressing force in the pressing direction, and at least one lower die portion which cooperates with the upper die portion to form a cavity in which the plastic component is formed. A die insert is fitted in the die and can move by and with the upper die portion and is designed to transmit the pressing force to the at least one structural part of the plastic component which is overlapped by the other structural part of the plastic component in the pressing direction.
    Type: Application
    Filed: May 22, 2012
    Publication date: December 13, 2012
    Applicant: ZF FRIEDRICHSHAFEN AG
    Inventors: Thomas EIFFLAENDER, Daniel WOLF, Jens HEIMANN
  • Patent number: 8191873
    Abstract: A suspension system suitable for a trailer incorporates a device for limiting rotation of an axle received in an eye of a leaf spring. The leaf spring has a wrapped end defining the eye extending transverse to the leaf spring with a gap left between the leaf spring and the wrapped end thereof. The rotation limiting device is fixed to the axle and features a sleeve having a peripheral wall extending circumferentially about the axle inside the eye of the leaf spring and a tab projecting outward from the peripheral wall of the sleeve and extending in a direction parallel to the axis. The tab projects into the gap left between the leaf spring and the wrapped end thereof to block rotation of the axle and sleeve relative to the wrapped end of the leaf spring. Friction fit, adhesive, welding or multi-piece hardware fixing of the spring is avoided.
    Type: Grant
    Filed: November 17, 2009
    Date of Patent: June 5, 2012
    Inventor: Michael F. Glass
  • Publication number: 20110127753
    Abstract: A leaf spring assembly and a tandem suspension system of a vehicle includes a number of leaf springs secured together so as to form a central seat adapted to be mounted to a chassis of the vehicle. The leaf spring assembly also includes a first end portion adapted to be mounted to a first axle of the vehicle and a second end portion adapted to be mounted to a second axle of the vehicle. Each leaf spring features a central arcuate section and a pair of end sections, where a thickness of the leaf spring is at a maximum in the central arcuate section and tapers down in thickness towards the pair of end sections so that a constant stress results in the material of the leaf spring when the leaf spring assembly is used in the suspension system.
    Type: Application
    Filed: November 3, 2010
    Publication date: June 2, 2011
    Inventor: JACK GRIFFIN
  • Publication number: 20110095456
    Abstract: A curved portion 123, which has a curved cross section, is formed at the recess 121 of the pad 110. The curved portion 123 has a contact portion 123A which contacts the tension surface of the leaf spring 12, which is disposed so as to face the curved portion 123, in an initial condition. The curved portion 123 has a thickness which is reduced from the contact portion 123A to an end portion of the curved portion 123, thereby being spaced from the tension surface of the leaf spring 12. In the pad 110, the height of the curved portion 123 of the recess 121 is set such that contact of the tension surface of the leaf spring 12 and the corner portion of the end portion of the curved portion 123 can be avoided when the stroke length of the end portion of the leaf spring 12 is at maximum. Thus, the tension surface of the leaf spring 12 is not worn by the corner portion of the end portion of the curved portion 123. As a result, breakage of the leaf spring, which may be caused by wear, can be prevented.
    Type: Application
    Filed: June 25, 2009
    Publication date: April 28, 2011
    Applicant: NHK SPRING CO., LTD.
    Inventor: Tsunefumi Kanematsu
  • Patent number: 7665753
    Abstract: A leaf spring suspension includes a plurality of leaf springs fixedly secured together by a bolt in the form of a stack. A first leaf spring of the plurality of leaf springs has ends configured to be coupled to a vehicle frame. A pin extends through each leaf spring except for the first leaf spring to prevent splaying between the leaf springs during transverse loading of the suspension.
    Type: Grant
    Filed: September 6, 2006
    Date of Patent: February 23, 2010
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventor: Takeo Gennai
  • Patent number: 7581741
    Abstract: A suspension assembly includes at least one leaf spring with first and second spring ends that are adapted for mounting to forward and rearward vehicle frame portions, respectively. A center portion of the leaf spring is clamped to an axle beam with a clamp. The suspension assembly includes a brake torque reactor that has one end mounted to the center portion of the leaf spring at the axle beam and an opposite end that cooperates with only one of the first and second spring ends to provide resistance for the leaf spring from deforming due to wind up generated during braking applications.
    Type: Grant
    Filed: August 24, 2006
    Date of Patent: September 1, 2009
    Assignee: ArvinMeritor Technology, LLC
    Inventor: Benjamin R. Reineck
  • Publication number: 20080284070
    Abstract: The invention relates to a leaf spring (1) consisting of a fibre-composite material for use in a vehicle. To prevent cracking or the escape of leaf spring material on the longitudinal edges (10) of said leaf spring (1) when the latter is fixed to a vehicle, according to the invention at least the upper face (13) and/or the lower face (14) of the leaf spring (1) are convex transversally to the longitudinal extension of said spring.
    Type: Application
    Filed: November 4, 2006
    Publication date: November 20, 2008
    Applicant: IFC COMPOSITE GMBH
    Inventors: Clemens Aulich, Rainer Forster, Heiko Kempe
  • Patent number: 7210673
    Abstract: A spring assembly includes a spring seat clamped to a leaf spring at a center portion. The spring seat includes a cutout for distributing clamping stresses in a substantially uniform manner across the leaf spring. The cutout provides a relief for a central portion of the leaf spring to uniformly distribute clamping pressures across the leaf spring. Uniformly distributing stresses across the width of the spring increases leaf spring fatigue life.
    Type: Grant
    Filed: April 10, 2003
    Date of Patent: May 1, 2007
    Assignee: ArvinMeritor Technology, LLC
    Inventors: David K. Platner, Rajesh J. Somnay, Xinyu Wen
  • Patent number: 7052001
    Abstract: A dual rate leaf spring suspension supports a frame member over an axle of a small utility vehicle. The dual rate leaf spring suspension includes a full-length leaf spring and a half-length leaf spring. A spacer plate is the only connection point between the full-length leaf spring and the half-length leaf spring, which is positioned intermediate the full-length leaf spring and at one end of the half-length leaf spring.
    Type: Grant
    Filed: February 12, 2004
    Date of Patent: May 30, 2006
    Inventors: Brian James Hitt, Valer Stratulat, Donald Stoesz
  • Patent number: 6991223
    Abstract: A suspension system includes a composite leaf spring having an arcuate segment that is located between a retaining pin and a bumper. The retaining pin includes a shank surrounded by a resilient tube. The bumper is located adjacent a rear wall of the bracket opposite the retaining pin. The bumper includes an arcuate face to engage the outer arc of the arcuate segment while the pin is at least partially surrounded by the arcuate segment. The end of the composite leaf spring is thereby securely yet resiliently retained within the front leaf spring attachment system without penetrating fasteners.
    Type: Grant
    Filed: September 5, 2003
    Date of Patent: January 31, 2006
    Assignee: ArvinMeritor Technology LLC
    Inventors: David K. Platner, Ramin Rezakhanlou, James Trotter
  • Publication number: 20040201144
    Abstract: A spring assembly includes a spring seat clamped to a leaf spring at a center portion. The spring seat includes a cutout for distributing clamping stresses in a substantially uniform manner across the leaf spring. The cutout provides a relief for a central portion of the leaf spring to uniformly distribute clamping pressures across the leaf spring. Uniformly distributing stresses across the width of the spring increases leaf spring fatigue life.
    Type: Application
    Filed: April 10, 2003
    Publication date: October 14, 2004
    Inventors: David K. Platner, Rajesh J. Somnay, Xinyu Wen
  • Patent number: 6702082
    Abstract: A leaf spring arrangement, especially for connecting a pressure plate to a housing, comprises a plurality of adjacent leaf spring elements, where each leaf spring element has a first attachment area for establishing the connection the pressure plate, a second attachment area for establishing the connection to the housing, and a connecting area extending between the first attachment area and the second attachment area. At least certain areas of at least two of the leaf spring elements are spaced apart between their first attachment area and their second attachment area.
    Type: Grant
    Filed: September 10, 2001
    Date of Patent: March 9, 2004
    Assignee: Mannesmann Sachs AG
    Inventors: Matthias Dörfler, Andreas Orlamünder, Andreas Dau, Albert Kammermeier, Hartmut Bach, Cora Carlson, Günther Esly, Reinhard Feldhaus, Ingrid Hoffelner, Christoph Kleuker, Paul Kraus, Bernd Peinemann, Michael Peterseim, Gerhard R{overscore (o)}ll, Ralf Till, Sebastian Vogt
  • Patent number: 6688586
    Abstract: An integral transverse spring-axle combines the functions of both an axle and a suspension by locating the wheels laterally and longitudinally, in the manner of an axle, and allowing vertical displacements of the wheels, in the manner of a suspension. This is achieved with a leaf spring with a center portion, a pair of center leaves and at least one pair of side leaves both extending oppositely from the center portion. The outboard ends of the leaves attach to the wheel hub carriers/knuckles. The inboard center portion of the spring attaches to the chassis/body frame. The two opposite outboard ends of the spring-axle leaves can move independently of each other. The spring-axle can be of the steered or nonsteered type, and of the driven or non-driven type.
    Type: Grant
    Filed: September 16, 2002
    Date of Patent: February 10, 2004
    Inventor: James Moore
  • Patent number: 6679487
    Abstract: A hybrid leaf spring includes an elongated primary leaf having a compression surface, an opposite tension surface, and a first modulus of elasticity. At least one composite material layer is provided having a second modulus of elasticity different from the first modulus of elasticity. An adhesive layer is interposed between and bonds the at least one composite material layer to and in substantially parallel relationship with a respective one of the tension and compression surfaces of the elongated primary leaf. A reinforcing layer of natural, synthetic or metallic sheet material extends within the adhesive layer, preferably in spaced relation to opposing surfaces of the primary leaf and the composite material layer to strengthen the bond formed by the adhesive layer.
    Type: Grant
    Filed: March 19, 2002
    Date of Patent: January 20, 2004
    Assignee: Pacific Coast Composites
    Inventors: Frank Meatto, Edward Pilpel, D. Michael Gordon, David C. Gordon, Jr.
  • Publication number: 20030222387
    Abstract: A suspension includes wheel supporting members for supporting wheels; a first leaf spring having both end portions each disposed on an upper side of one of the wheel supporting members; a second leaf spring extending along the first leaf spring; a pivot for supporting the second leaf spring on a vehicle body; a spacer provided between the first and second leaf springs; sliders fixed on the second leaf spring but being in slidable contact with the first leaf spring; and receiving pieces interposed between the both end portions and the wheel supporting members. Each of the receiving pieces includes an engaging portion for engaging with one of the both end portions. Each of the receiving pieces includes an elastic member capable of deforming to follow a relative displacement between the first leaf spring and the wheel supporting member in the vehicle width direction.
    Type: Application
    Filed: May 30, 2003
    Publication date: December 4, 2003
    Inventor: Kenji Yokoyama
  • Patent number: 6619637
    Abstract: A suspension spring arrangement for a vehicle having an upper elongated spring leaf (12) and a lower elongated spring leaf (14) with an upper elongated spring leaf (12) is provided with a slot (22) and a lower elongated spring leaf (14) is provided with a protuberance (24). When the upper and lower spring leafs (12, 14) are joined to one another, the protuberance (24) is accommodated within the slot (22) so as to prevent lateral displacement of the upper and lower spring leafs (12, 14) with respect to each other. Pounding and squeaking noises are prevented by the installation of a polymeric insert between the slot and the protuberance. The slot (22) and the protuberance (24) are configured in accordance with square, rectangular, and/or circular shapes, depending upon the particular application. A protuberance (24) and a slot (22) can be provided at each end of the suspension spring arrangement.
    Type: Grant
    Filed: July 12, 2001
    Date of Patent: September 16, 2003
    Assignee: Rassini, S.A. de C.V.
    Inventor: James Juriga
  • Publication number: 20030160371
    Abstract: A vibrator with resilience comprised of two or more spring leafs which are jointed between a base and a bearing object, in which the respective leaf spring folds at connecting ends are parallely disposed to each other, the joint form of which might be triangle or parallelogram etc., and various completed configurations deriving from foregoing basic forms are available according to acquirement. The advantage of said vibrator is its handy structure, lower cost and easy maintenance, which can be widely used as a damper in the cases of suitable vibration scope.
    Type: Application
    Filed: March 17, 2003
    Publication date: August 28, 2003
    Inventors: David Tak-Wei Hon, Dalai Xu
  • Publication number: 20030085497
    Abstract: A leaf spring assembly for use as an active component in vehicle suspension systems is disclosed. The leaf spring assembly includes a full leaf leaf spring component and a half leaf leaf spring component connected thereto. The full leaf leaf spring extends substantially the entire length of the leaf spring assembly and the half leaf leaf spring extends substantially the entire length of one of the cantilevers. In a preferred form, when the leaf spring assembly has front and rear cantilevers of substantially unequal length, the leaf spring assembly provides for a constant caster angle for its associated axle during deflection of the assembly due to jounce and rebound. In another preferred form, when the leaf spring assembly has front and rear cantilevers of substantially equal length, the leaf spring assembly provides for a varying caster angle for its associated axle during deflection of the assembly due to jounce and rebound.
    Type: Application
    Filed: June 11, 2002
    Publication date: May 8, 2003
    Inventor: William Wilson
  • Patent number: 6530562
    Abstract: A beam spring capable of substantial elastic deformation in two planes to provide for independent wheel suspension and to commonize suspension mounting systems in a vehicle chassis.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: March 11, 2003
    Assignee: Visteon Global Technologies, Inc.
    Inventors: Craig V. Sutton, John Piasentin, Paul Eugene Beshears, Jr.
  • Patent number: 6460838
    Abstract: The present invention provides for a fiber reinforced suspension member having an integral pivot opening. The suspension member includes a first portion, a second portion and a central portion disposed in between the first portion and the second portion. The suspension member in accordance with the teachings of the present invention is formed of fibers that extend longitudinally from the first portion to the central portion and curve around the central portion such that an opening is defined in the central portion. The fibers forming the suspension member typically comprise an upper fiber layer and a lower fiber layer. The upper fiber layer and the lower fiber layer interface in the first portion and the second portion and are separated in the central portion. The upper layer fiber and the lower layer fiber are reinforced around the opening by stitching reinforcing fibers through the thickness of the suspension member.
    Type: Grant
    Filed: April 10, 2001
    Date of Patent: October 8, 2002
    Assignee: Visteon Global Technologies, Inc.
    Inventors: Douglas James Bradley, Robert Christian Lawson
  • Patent number: 6461455
    Abstract: In a method for making a hybrid leaf spring at least one layer of composite material is provided and a metal primary leaf. The layer of composite material and metal primary leaf are positioned adjacent one another in a mold having an interior cavity defined by at least one cavity wall. A layer of adhesive material is located between and in engagement with the layer of composite material and the metal primary leaf. The adhesive is cured by controllably heating the metal primary leaf so that energy in the form of heat is conducted therefrom into the adhesive layer bonding said metal primary leaf and layer of composite material together.
    Type: Grant
    Filed: January 24, 2000
    Date of Patent: October 8, 2002
    Assignee: Pacific Coast Composites
    Inventors: Frank Meatto, Edward Pilpel, D. Michael Gordon, David C. Gordon, Jr.