Leaf And Torsion Patents (Class 267/25)
  • Patent number: 11124040
    Abstract: A torsion spring assembly for a wheel suspension of a motor vehicle, including two torsion bars arranged coaxially one inside another and also a spring element, which is arranged axially-parallel to the two coaxial torsion bars, and can be mounted on the motor vehicle body via a bearing position, wherein the radial outer hollow-cylindrical torsion bar can be mounted on the motor vehicle body side and is connected in a rotationally-fixed manner to an output lever fastenable on a wheel guiding element and the radial inner torsion bar is connected in a rotationally-fixed manner to the outer torsion bar and is connected in a rotationally-fixed manner via a coupling to the spring element.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: September 21, 2021
    Assignee: AUDI AG
    Inventors: Sebastian Schindler, Mike Engel
  • Patent number: 9200691
    Abstract: For an elastic coupling member for a three (or more) point connection of a vibration absorber mass, like a gas generator for an airbag, to a motor vehicle part exposed to vibrations or oscillations, like a steering wheel structure, comprising a sleeve-shaped spring body firmly connectable to the vibration absorber mass and the motor vehicle part and having an axial direction, it is provided that the spring body has a different shape in its first radial sectional plane, in particular a vertical radial sectional plane, compared to a second, in particular horizontal radial section plane circumferentially offset from the first one.
    Type: Grant
    Filed: September 19, 2011
    Date of Patent: December 1, 2015
    Assignee: Anvis Deutschland GmbH
    Inventors: Sebastian Boes, Joerg Ditzel
  • Patent number: 8596431
    Abstract: A self-adjusting end position damping arrangement includes a stroke space 9 which is delimited by a movable stroke element 7, 24 and a part of the pneumatic cylinder 1, with the stroke space 9 being connected via a connecting duct 14 to the working pressure P1 which acts on the cylinder piston 22 or to the ventilation pressure (P3) in the outlet duct 3 and the stroke element 7, 24 being acted on via a damping duct 16 by the damping pressure P2 in the damping volume 19, a non-return valve 12 is arranged in the connecting duct 14 upstream of the stroke space 9, which non-return valve 12 blocks in the direction of the working pressure P1 or the ventilation pressure (P3), respectively, and a ventilation duct 5 is provided, which ventilation duct 5 can be opened by means of the movable stroke element 7, 24 and which is connected to an outlet duct 3.
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: December 3, 2013
    Assignee: Parker Origa Holding AG
    Inventor: Christian Bruder
  • Patent number: 7900941
    Abstract: A suspension system for providing a suspension between wheels and a frame of a vehicle is provided. The system includes an arm beam pivotally mounted to the frame at its proximate end and coupled at its distal end to a guiding assembly enabling the arm beam to pivot in a vertical direction and to be restrained in lateral directions perpendicular to the vertical direction. The arm beam includes: (a) a spring and damper assembly near its distal end for providing a dampened resilient mount for the suspension; (b) a wheel axle beam coupled to the arm beam for bearing a load borne by the wheels transmitted directly in-line with a central axis of the spring and damper assembly; and (c) a stabilizer coupled between the arm beam and the frame, the stabilizer resisting a lateral rolling motion of the vehicle. The stabilizer is included between the proximate end of the arm beams and their damper and spring assemblies for rendering the system more compact.
    Type: Grant
    Filed: November 15, 2006
    Date of Patent: March 8, 2011
    Assignee: Volvo Lastvagnar AB
    Inventor: Andreas Lundmark
  • Patent number: 7296812
    Abstract: In a front fork of a motorcycle or other motor vehicle, an oil chamber is provided in an outer side of a hollow pipe is vertically divided into upper and lower sides by a piston arranged in a leading end portion of the vehicle body side tube. An oil reservoir chamber communicated with the oil chamber is provided in an inner side of the hollow pipe. A partition member dividing the oil reservoir chamber into upper and lower sides is provided in an upper portion of the hollow pipe, and a compression side damping valve is provided in a flow path formed in the partition wall member. A seal member slidably contacted with an inner periphery of the vehicle body side tube is provided in an outer periphery of the vehicle body side tube is provided in an outer periphery of the partition wall member.
    Type: Grant
    Filed: August 25, 2004
    Date of Patent: November 20, 2007
    Assignee: Showa Corporation
    Inventors: Nobuaki Fujita, Kimitoshi Satoh
  • Patent number: 7048287
    Abstract: An air suspension anti-roll stabilization system includes air suspension devices, such as at least one pair of air bags air spring mounted upon an axle via leaf spring suspension arms of an associated vehicle on respective opposed sides of the longitudinal axis of the vehicle, with the axle being located at least partially with respect to the frame or chassis of the vehicle by means of a pair of leaf spring arms which are located on respective opposed sides of the longitudinal vehicle axis and of which each has one end mounted pivotally to the vehicle frame or chassis, wherein anti-roll means is connected rigidly between the part of longitudinal leaf spring suspension arms.
    Type: Grant
    Filed: November 3, 2003
    Date of Patent: May 23, 2006
    Assignee: Detroit Steel Products Co., Inc.
    Inventor: John Bolland Reast
  • Patent number: 6962360
    Abstract: An air suspension anti-roll stabilization system includes air suspension devices, such as at least one pair of air bags air spring mounted upon an axle via leaf spring suspension arms of an associated vehicle on respective opposed sides of the longitudinal axis of the vehicle, with the axle being located at least partially with respect to the frame or chassis of the vehicle by means of a pair of leaf spring arms which are located on respective opposed sides of the longitudinal vehicle axis and of which each has one end mounted pivotally to the vehicle frame or chassis, wherein anti-roll means is connected rigidly between the pair of longitudinal leaf spring suspension arms.
    Type: Grant
    Filed: June 9, 2000
    Date of Patent: November 8, 2005
    Assignee: Detroit Steel Products Co., Inc.
    Inventor: John Bolland Reast
  • Patent number: 6941634
    Abstract: A method of attaching an axle of a golf cart to a leaf spring of the golf cart, comprising the steps of aligning the leaf spring adjacent the axle and a bottom plate, inserting an end of a fastener initially through a first aperture associated with the axle and subsequently through a second aperture of the bottom plate and securing the leaf spring between the axle and the bottom plate by securing the fastener at the bottom plate, enabling improved access for assembly and service.
    Type: Grant
    Filed: March 1, 2002
    Date of Patent: September 13, 2005
    Assignee: Textron Inc.
    Inventor: Bryan D. Bigsby
  • Patent number: 5367917
    Abstract: A vehicle seat belt retractor (10) includes a spindle (22), a ratchet wheel (30) and a locking pawl (44). The locking pawl (44) is movable between a disengaged position and an engaged position in which it blocks rotation of the ratchet wheel (30) and the spindle (22) in an unwinding direction. The locking pawl (44) is moved into its engaged position in response to a predetermined amount of rotation of the spindle (22) in the unwinding direction. The locking pawl (44) moves back to its disengaged position in response to rotation of the spindle (22) in an unwinding direction. The retractor (10) further includes a torsion spring (210) and a leaf spring (250) acting in series between the spindle (22) and the locking pawl (44).
    Type: Grant
    Filed: October 20, 1992
    Date of Patent: November 29, 1994
    Assignee: TRW Vehicle Safety Systems Inc.
    Inventors: Michael K. Hishon, Steven Stoll
  • Patent number: 5315890
    Abstract: The device prevents any relative translation movement in a first plane between two members moving one with regard to the other in a second plane substantially perpendicular to the first plane. Two linkages P.sub.1 P.sub.4 and P.sub.2 P.sub.3 are flexibly connected at their middle parts by members F1,F6 and a reinforced part 7. The two linkages have one of their ends connected to the first member by a fixed pivot point P.sub.1 and a movable pivot point P.sub.3, the other end of the two linkages being connected to the second member by a fixed pivot point P.sub.2 and a movable pivot point P.sub.4, the fixed pivot points and the movable pivot points being comprised of flexible portions, F.sub.1 to F.sub.4,8 and 9 of the linkages.
    Type: Grant
    Filed: September 21, 1992
    Date of Patent: May 31, 1994
    Assignee: Eastman Kodak Company
    Inventor: Michael Long
  • Patent number: 5130950
    Abstract: Pulse echo apparatus and methods are disclosed for measuring characteristics of a borehole while it is being drilled. A component of a bottomhole assembly, preferably a drilling collar, is provided with one or more ultra-sonic transceivers. A pulse echo sensor of the transceiver is preferably placed in a stabilizer fin of the collar, but may also be placed in the wall of the collar, preferably close to a stabilizing fin. Electronic processing and control circuitry for the pulse-echo sensor is provided in an electronic module placed within such collar. Such pulse echo apparatus, which preferably includes two diametrically opposed transceivers, generates signals from which standoff from a borehole wall may be determined. A method and apparatus are provided for measuring standoff and borehole diameter in the presence of drilling cuttings entrained in the drilling fluid. In a preferred embodiment, such signals are assessed by the electronic processing and control circuity to determine if gas has entered borehole.
    Type: Grant
    Filed: May 16, 1990
    Date of Patent: July 14, 1992
    Assignee: Schlumberger Technology Corporation
    Inventors: Jacques Orban, James C. Mayes
  • Patent number: 5007660
    Abstract: A leaf spring suspension for a motor vehicle wherein the leaf spring has one end pivotally connected to the frame and the other end also connected to the frame via a torsion spring member. The torsion spring member has a shaft member which is pivotally connected to the other end of the leaf spring. The torsion spring member has an elastomeric sleeve whose inner bore surface is bonded to the shaft member. The torsion spring member also has an outer shell secured to the sleeve and also connected to the frame. A stop member is mounted on the outer shell for engagement by an abutment member on the bracket member to cut out the torsion spring and place the leaf spring in sole control as the suspension.
    Type: Grant
    Filed: August 17, 1989
    Date of Patent: April 16, 1991
    Assignee: The B. F. Goodrich Company
    Inventors: Roy L. Orndorff, Jr., Mark J. Bono
  • Patent number: 4976417
    Abstract: An end attachment assembly for a twisted rope torsion bar includes anchor nut, an elastomeric hub and a wrap spring adapted for cooperative interaction. The anchor nut provides strength and durability while the elastomeric hub provides resilience and elasticity to beneficially accept the angular deflection of the composite, twisted rope torsion bar when torque is applied. The elastomeric hub is molded onto the end of the torsion bar to improve its connection therewith. The torsion bar is preferably fabricated of a lightweight glass fiber/epoxy composite material. In assembled relation, the nut and hub provide a substantially continuous, even cylindrical surface which cooperates with the wrap spring. The wrap spring tightly engages the nut and hub, securely maintaining the components in adjacent relation. The wrap spring constricts in the presence of applied torque, resulting in a tighter and tighter grip when influenced by increasing torque in a working environment.
    Type: Grant
    Filed: August 14, 1989
    Date of Patent: December 11, 1990
    Assignee: General Motors Corporation
    Inventor: Jack E. Smith
  • Patent number: 4633564
    Abstract: A stabilizing mechanism and a method of mounting the stabilizing mechanism are provided. The stabilizing mechanism is supported on modified overload stops which are mounted onto the truck frame through mounting holes drilled by the truck's manufacture and intended as mountings for conventional overload stops; in addition, linkages fixedly coupled to the longitudinal ends of the torsion bar directly couple each end of the torsion bar to one of the leaf springs of the truck frame. Differential compression of the leaf springs twists the torsion bar which produces a reactive torque at the longitudinal ends of the torsion bar. In response to this reactive torque, the linkages fixedly coupled to the torsion bar transfer the torque to a linear force which opposes the differential compression of the leaf springs.
    Type: Grant
    Filed: March 29, 1984
    Date of Patent: January 6, 1987
    Inventor: Charles J. Sauber
  • Patent number: 4540197
    Abstract: A vehicle wheel suspension includes transverse control arms for an opposed pair of road wheels and a primary suspension spring beam spaced longitudinally of the vehicle away from the control arms and interconnected therewith by torsion rods installed on axes located outboard of the swing axes of the transverse control arms.
    Type: Grant
    Filed: July 22, 1983
    Date of Patent: September 10, 1985
    Assignee: General Motors Corporation
    Inventors: Bernard J. Finn, Ming-Chih Yew
  • Patent number: 3964735
    Abstract: An adaptor for converting a vehicle spring suspension for use with a torsion bar connecting an axle housing affixed to the midpoint of the suspension spring directly to the vehicle chassis, when the suspension was not previously equipped with a torsion bar, the adaptor consisting of a plate adapted to be mounted between the original axle spring mount, which is not adapted to anchor one end of a torsion bar, and the spring itself, the adaptor plate having means anchoring it rigidly on the spring mount, and having projections operable to receive and anchor one end of a torsion bar.
    Type: Grant
    Filed: March 3, 1975
    Date of Patent: June 22, 1976
    Inventors: Oliver L. Wright, Wilbur D. Wright