Plastic Deformation Or Breakage Of Retarder Element (e.g., Impact Absorber) Patents (Class 188/371)
  • Patent number: 6584870
    Abstract: A shift lever device having a shift lever which allows selection of an arbitrary shift range by shift operation and includes a support which rotatably supports the shift lever and includes breakable portions which break when an impact force above a preselected magnitude is applied to the shift lever. Accordingly, when an axial impact force indicative of a sudden deceleration is applied to the shift lever, the support is broken. The breakage of the support allows safer absorption of the impact force applied to the shift lever. The breakable portions may take the form of a frangible pin or bracket that pivotally supports the shift lever.
    Type: Grant
    Filed: July 3, 2001
    Date of Patent: July 1, 2003
    Assignee: Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho
    Inventors: Masaya Nishimura, Kazuhiro Sato, Masaki Fujita, Yoshitaka Watanabe, Hitoshi Kanazawa, Noriyasu Shamoto
  • Patent number: 6561105
    Abstract: A rail vehicle having an end provided with a driver's cab, said vehicle having a rigid frame extending under said driver's cab, said rail vehicle having a protective shield disposed in front of said driver's cab and provided with a rigid structure, said protective shield resting on said frame and being connected to said frame via at least one energy-absorbing element interposed locally between the shield and the frame.
    Type: Grant
    Filed: November 29, 2001
    Date of Patent: May 13, 2003
    Assignee: Alstom
    Inventors: Marcel Godin, GĂ©rard Gielczinski, Jean-Marc Langlet, Christian Boneill, Isabelle Guilloteau
  • Publication number: 20030085560
    Abstract: A shock-absorbing tilt type steering column is disclosed. An upper clamp includes a first side wall and a second side wall formed respectively with a first hole and a second hole. A coupler is inserted into the first and second holes. The first and second side walls have such a height that lower ends are disposed on a level with or above a lowermost section of a column jacket when the coupler is disposed in uppermost positions of the first and second holes. A distance bracket coupling with the column jacket is so sandwiched between the first and second side walls as to move upward and downward, and engages with the coupler in such a manner as to disengage from the coupler when a load over an upper limit is applied in a direction along the column jacket. An energy absorber is interposed between the distance bracket and the coupler.
    Type: Application
    Filed: October 22, 2002
    Publication date: May 8, 2003
    Applicant: FUJI KIKO CO., LTD.
    Inventor: Kazuya Shibayama
  • Publication number: 20030075405
    Abstract: An energy absorbing device for a collapsible steering column has a plurality of plastically deformable straps each with one end connected to the steering column and an opposite end bent around an anvil connected to stationary vehicle support structure. When the steering column collapses, the straps unwind from the anvils, thereby resisting steering column collapse and absorbing energy. One or more of the straps may be cut in two by a knife at the time of the collision, thereby removing it from the energy absorbing system. In another form of the invention, an energy absorbing strap extends around a piston which has two or more different size anvils. The piston is axially movable in a cylinder to positions surrounding one or another of the anvils. The strap is drawn over the anvil it surrounds when the steering column collapses, thereby resisting collapse of the steering column and absorbing a certain amount of energy depending on the size of the anvil.
    Type: Application
    Filed: October 10, 2002
    Publication date: April 24, 2003
    Applicant: DELPHI TECHNOLOGIES INC.
    Inventors: Marvin V. Manwaring, Melvin Lee Tinnin, Ravindra Jwalapathy, Ray Garnet Armstrong
  • Patent number: 6550850
    Abstract: Device for absorbing energy during impact, comprising a plurality of hollow impact-absorbing elements having a first base, a side surface and an end base, each absorbing element having a crushing resistance in the direction of a working axis. According to the invention, the device comprises two base plates which face one another, the side surfaces of a portion of the plurality of hollow impact-absorbing elements rising from each plate in the direction of the working axis, and the side surfaces of the impact-absorbing elements of one base plate rising in a direction opposite that of the side surfaces of the impact-absorbing elements of the other base plate.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: April 22, 2003
    Assignee: Sai Automotive Allibert Industrie
    Inventors: Jean-Michel Laborie, Damien Demulder, Patrick Febvay
  • Publication number: 20030057043
    Abstract: A composite includes at least one structural part and a deformation element, in particular for the absorption of kinetic energy in the event of a crash of a motor vehicle. The deformation element can be deformed in a deformation direction to a residual block length. The deformation element includes a honeycomb-shaped matrix body. The matrix body and the structural part are connected to each other by an additional fastening, in such a way that the connection can resist forces transverse to the deformation direction.
    Type: Application
    Filed: August 9, 2002
    Publication date: March 27, 2003
    Inventors: Jan Hodgson, Carsten Kruse, Rolf Bruck
  • Patent number: 6533066
    Abstract: A shock absorbing lanyard having an integral fall arrest energy absorber formed in a one-piece woven, knitted or braided construction wherein partially oriented yarn (“POY”) fibers and high modulus yarn fibers are combined integrally in one section and are separate in another section in which the high modulus yarn fibers preferably form a sheath around a core of POY fibers.
    Type: Grant
    Filed: October 13, 2000
    Date of Patent: March 18, 2003
    Assignee: Rose Manufacturing Company
    Inventor: David Ray O'Dell
  • Patent number: 6530599
    Abstract: A shock absorbing type steering apparatus comprises in combination, a tubular outer shaft with a female serration on the inner peripheral surface at one end portion thereof and an inner shaft with a male serration engaged with said female serration on the outer peripheral surface at one end portion thereof, the male serration and the female serration being in the state of interference-fitted engagement with each other to be contractable based on a load in the axial direction. A film of solid lubricant is formed on the surface of at least one of the male and female serrations.
    Type: Grant
    Filed: April 5, 1999
    Date of Patent: March 11, 2003
    Assignee: NSK Ltd.
    Inventor: Shoji Oka
  • Publication number: 20030034659
    Abstract: An energy absorption system and method comprised of a crush tube, a taper component, and a flare component. The crush tube is inserted into a matching hole in the taper component. As the taper and flare components are moved down over the crush tube, the taper component decreases the diameter of the crush tube and the flare component splits the crush tube in a plurality of petals. The crush tube may include a plurality of initiator slits to aid in the flaring process. When mounted with the longitudinal axis of the crush tube parallel to an axis of an impact, the present invention is capable of absorbing some or all of the crash event by dissipating energy by the tapering, flaring, friction, and other methods.
    Type: Application
    Filed: August 17, 2001
    Publication date: February 20, 2003
    Inventors: Todd L. Summe, Jieh-Ren Yeh, Eric M. Stull
  • Publication number: 20030020219
    Abstract: An impact damper as a connecting member between a bumper and a chassis of a motor vehicle for the purpose of damping the shock loading during a collision between this motor vehicle and an obstacle, comprising an inner tube which can be displaced telescopically inside an outer tube, thereby changing the volume of pressurized gas spaces. The first gas space and the second gas space have a common pressure, which is dimensioned such that optimum damping is provided for a collision between the motor vehicle and a pedestrian. It is being possible for a deformation element to be displaced as well to absorb high forces through deformation work.
    Type: Application
    Filed: July 24, 2002
    Publication date: January 30, 2003
    Applicant: ZF Boge GmbH
    Inventor: Herbert Konenberg
  • Publication number: 20030019699
    Abstract: Impact damper as a connecting member between a bumper and a chassis of a motor vehicle for the purpose of damping the shock loading during a collision between this motor vehicle and an obstacle, predominantly through gas-spring forces and deformation work. This impact damper includes an inner tube and an outer tube, which can be displaced telescopically one inside the other, thereby changing the volume of pressurized first and second gas spaces, at least one of the gas spaces being connected to an accumulator by a pneumatic feed line. An electrically controllable control valve, by means of which the air pressure in the gas spaces can be changed, can be arranged in the pneumatic feed line. The pressure in the gas spaces can be varied by a detection sensor system in the motor vehicle, which controls a control valve and adapts the pressure to the expected momentum of the collision. It is possible for a deformation element to be displaced as well to absorb a high impact energy by deformation work.
    Type: Application
    Filed: July 24, 2002
    Publication date: January 30, 2003
    Applicant: ZF Boge GmbH
    Inventor: Wolfgang Dohrmann
  • Publication number: 20030019703
    Abstract: The deformation element (1) of a rail-borne vehicle is disposed in the region of at least one deformation zone (3) located on the end side of the vehicle, wherein the deformation element (1) is formed as a tubular hollow box (6) with at least one sidewall (9) of the deformation element (1) being formed with a polygonal cross-section comprises an inwardly directed indentation (4), wherein the indentation (4) is provided on the longitudinal-side end region of the deformation element (1) remote from the rail-borne vehicle underframe (2).
    Type: Application
    Filed: August 19, 2002
    Publication date: January 30, 2003
    Inventors: Michael Schobergegger, Georg Schmeja
  • Publication number: 20030019698
    Abstract: An impact damper as a connecting member between a bumper and a chassis of a motor vehicle for the purpose of damping the shock loading during a collision between this motor vehicle and an obstacle through hydraulic damping forces and gas-spring forces. This impact damper includes an inner tube which can be displaced telescopically inside an outer tube, thereby changing the volume of a pressurized gas space, which interact by means of a separating piston with a first liquid space, which communicates hydraulically via a restriction orifice with a second liquid space, which is bounded by a deformation element. The separating piston is arranged in a floating manner in the inner tube and thereby brings about a static equilibrium by pressure compensation in the liquid spaces and in the gas space.
    Type: Application
    Filed: July 24, 2002
    Publication date: January 30, 2003
    Applicant: ZF Boge GmbH
    Inventors: Wolfgang Dohrmann, Paul Eberhard Krug
  • Publication number: 20020179390
    Abstract: The present invention is an impact energy absorption member that is characterized by comprising a long member of fiber reinforced resin having a lengthwise direction and a thickness direction, wherein the ratio of the thickness t (mm) of the long member to the length L (mm) thereof is within the range of 1/11000 to 6/1000 as well as the direction of an external force is substantially in agreement with the thickness direction of the impact member. The member of the present invention sufficiently absorbs impact energy from a moving body when collision occurs and greatly increases safety to collision of transportation equipment, for example, a motor car and the like as well as is light in weight and compact, whereby the member can improve resistance against environment and saves energy. Further, when this member is applied to a house and a building against which the transportation equipment may collide, it can reduce the loss of social properties.
    Type: Application
    Filed: October 15, 2001
    Publication date: December 5, 2002
    Inventors: Akihiko Kitano, Tomoyuki Shinoda, Hitoshi Nishiyama, Takuya Karaki
  • Patent number: 6478333
    Abstract: A collapsible steering column assembly has an arrangement to absorb energy upon steering column collapse. In a preferred form, the arrangement includes a skid member acting to deform a length of wire having arms to embrace at least one retaining pin. The or each pin is selectively extendable and retractable in order to vary the energy absorption capability.
    Type: Grant
    Filed: May 26, 2000
    Date of Patent: November 12, 2002
    Assignee: NSK Steering Systems Europe Limited
    Inventors: Laurence George Herbert Barton, James Peter Bentley, Yasuhisa Yamada
  • Patent number: 6460667
    Abstract: A support assembly for an oblique introduction of force and an absorption of kinetic energy during an impact, especially for a motor vehicle, includes a supporting structure and a deformation element. The deformation element rests with at least one side against a support element on the support structure and has a honeycomb matrix body with a longitudinal axis and hollow chambers formed by walls. The deformation element is fixed to the support structure in such a way that at least a part of forces generated during in impact are introduced into the walls at an angle relative to the main direction in which the walls extend. A vehicle bumper system and a method of producing a deformation element are also provided.
    Type: Grant
    Filed: November 7, 2000
    Date of Patent: October 8, 2002
    Assignee: Emitec Gesellschaft fur Emissionstechnologie MbH
    Inventors: Rolf BrĂĽck, Carsten Kruse, Raimund Strigl
  • Patent number: 6457556
    Abstract: A damping element for a catching carriage for damping the catching impact in the event of a fall of a user from a height includes a first end adapted to be connected to the carriage and a lug disposed at a second end adapted to be connected to a catching belt secured to the user. The damping element is releasably fixed in a non-rectilinear shape by at least one frangible link dimensioned for releasing the damping element from its non-rectilinear shape when a certain load is applied, so that it can damp the catching impact.
    Type: Grant
    Filed: September 12, 2000
    Date of Patent: October 1, 2002
    Assignee: Soll GmbH
    Inventors: Toralf Skade, Ronald Mickan
  • Publication number: 20020134618
    Abstract: Device for progressively braking the fall of a load, and life line equipped with said device.
    Type: Application
    Filed: November 29, 2000
    Publication date: September 26, 2002
    Inventor: Francis Timmermans
  • Patent number: 6450532
    Abstract: An energy absorber for a steering column includes a pair of plastic guides each of which is molded flat and closes at an integral living hinge around a corresponding one of a pair of serpentine flat metal straps so that the straps are captured in the guides between pairs of convex anvils on the guides. Each guide snaps into a guide slot in a mounting bracket on the steering column mast jacket. An inboard end of each flat metal strap is clamped to a vehicle body so that during a collapse stroke of the mast jacket, relative linear translation between the mounting bracket and the serpentine flat metal straps causes each of the straps to be thrust against and pulled across corresponding ones of the convex anvils. Plastic deformation of the flat metal straps at the convex anvils resist linear translation of the mast jacket. The dimensional accuracy of the molded plastic guides contributes to consistently predictable performance of the energy absorber.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: September 17, 2002
    Assignee: Delphi Technologies, Inc.
    Inventors: Patrik M Ryne, Melvin Lee Tinnin
  • Patent number: 6439357
    Abstract: A system for continuous energy absorption with relative displacement, by squeezing a metallic strip between two components of defined section comprising three separate components which are an upper component, a lower component and a strip. The upper components has a bottom surface; the lower component has a top surface spaced from and extending complementarily to the upper surface, each of the top and bottom surfaces having spaced apart first and second portions and an intermediate portion between the first and second portions located between and joining first and second portions, the intermediate portion being bent off from both of the first and second portions; and a metallic strip squeezed between the top and bottom surfaces of the upper and lower components and the metallic strip conforms to the top and bottom surfaces.
    Type: Grant
    Filed: February 28, 2000
    Date of Patent: August 27, 2002
    Inventor: Melchor Daumal Castellon
  • Publication number: 20020109343
    Abstract: A shock absorber is accommodated in a space defined between an inner panel and a garnish panel of a vehicle to absorb secondary collision between the vehicle and a passenger. The shock absorber includes a hollow main body and a projection that protrudes outward or inward. When receiving shock by a passenger occupying a driver's seat, the shock absorber is deformed to fold the projection. When receiving shock by a passenger occupying a passenger seat that is located next to the driver's seat, the shock absorber is deformed to unfold the projection.
    Type: Application
    Filed: March 14, 2001
    Publication date: August 15, 2002
    Inventors: Tadashi Sugimoto, Masayoshi Takahashi, Satoshi Murakami
  • Publication number: 20020100651
    Abstract: To provide a shock absorbing structure of a two-wheeled vehicle, which is capable of sufficiently absorbing shock and desirably maintain the steerability of the two-wheeled vehicle. A shock absorbing structure includes a shock absorbing member projecting from a front wheel, wherein the shock absorbing member is crashed when the vehicle collides with an obstacle so as to absorb shock. In the shock absorbing structure, a front end of the shock absorbing member is located in front of a front wheel or in the vicinity of the front wheel. A ceiling wall of the shock absorbing member is located at such a position that the ceiling wall does not block a forward viewing area for a driver. A center of a leading end contact surface of the shock absorbing member is located at a position higher than a vertical position of a center of gravity G of both a motorcycle and the driver.
    Type: Application
    Filed: January 31, 2002
    Publication date: August 1, 2002
    Inventors: Hideki Akiyama, Toyokazu Nakamura, Takeshi Yamazaki
  • Patent number: 6406088
    Abstract: The present invention provides a crash rail for a vehicle. The crash rail has a root portion which can be anchored to a part of the vehicle, a tip portion which is spaced apart from the root portion and which is located nearer a potential impact point of the vehicle when the root portion is anchored to the said part of the vehicle and a middle portion which extends from the root portion to the tip portion. The crash rail comprises a wall which defines a groove or a cavity in the crash rail. The groove or the cavity in the crash rail has a cross-sectional area which increases gradually from the tip portion to the root portion. The wall has a thickness which increases gradually from the tip portion to the root portion. The wall is composed of a composite material having fibers set in a resin material. The crash rail can be crushed when the vehicle impacts with another object to thereby absorb energy of the impact.
    Type: Grant
    Filed: May 24, 2001
    Date of Patent: June 18, 2002
    Assignee: Lotus Cars Limited
    Inventor: Michael Tate
  • Patent number: 6402209
    Abstract: A device for interconnecting a protective bar and a vehicle, the device including a first connection component which is adapted to be connected to a protective bar, second connection components which are adapted to be connected to a vehicle and an impact absorbing component which is adapted to at least partially absorb energy associated with an impact on the protective bar which is to be connected to the first connection component, wherein the impact absorbing component includes spaced lateral walls and a generally hollow member located there-between.
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: June 11, 2002
    Assignee: TJM Products PTY, Ltd.
    Inventor: Mark McGuiness
  • Patent number: 6398259
    Abstract: Described is a break-away bracket (102) comprising a bracket shell (111) having a central channel (132) and sidewalls (120 and 123) having outwardly extending flanges (126 and 129), a clip (150 and 153) extending over at least a portion of each flange (126 and 129), and a plurality of exterior reinforcing plastic ribs (180) attached to the exterior (117) of the bracket shell (111). Each clip/flange assembly of the break-away bracket has at least one shearable pin (177), e.g., a shearable plastic pin, extending therethrough. The exterior ribs (180) are preferably formed by the molding, e.g., injection molding, of plastic material onto the exterior surfaces (117) of the bracket shell (111). The exterior ribs (180) are preferably attached to the bracket shell (111) by means of molded on plastic extending through and embedding the edges of perforations in the bracket shell.
    Type: Grant
    Filed: April 18, 2001
    Date of Patent: June 4, 2002
    Assignee: Bayer Corporation
    Inventors: Timothy A. Palmer, Christopher T. Korson
  • Patent number: 6394241
    Abstract: A simple, low cost energy absorbing shear strip bender that provides constant load, tailored load, or adjustable load/displacement profiles for use in any application where a single use energy absorber is required. Examples include, but are not limited to: a spinal load attenuator for use in crash-resistant aircraft seats; crash-resistant aircraft landing gear; aircraft or automotive restraint harness attachments; cargo or high-mass item tie-downs; automotive bumper attachments; and collapsible steering columns. The present invention comprises a shear plate or other base material, a shear strip integral to the shear plate, and a shear strip tab, all of which are formed from a single sheet of ductile material. The energy absorber attaches to two objects and begins to displace when opposing forces applied to the shear plate and shear strip tab reach the design limit value such that shear strip shears and plastically deforms, i.e., bends.
    Type: Grant
    Filed: October 21, 1999
    Date of Patent: May 28, 2002
    Assignee: Simula, Inc.
    Inventors: Stanley Desjardins, Gary Brown
  • Patent number: 6393999
    Abstract: The invention relates to an impact protection device for rail vehicles, comprising one or more energy absorbing elements (25) mounted on the main frame of the rail vehicle and having a box-like structure. The invention is characterized in that from the box end in the direction of the main frame (29) a reverse-drawn recess (20) and a buffer rod (21) are provided and the buffer rod can be displaced along the interior wall of the reverse-drawn recess (20). Elastically deformable energy absorbing elements (32) such as a friction spring (33) or a hydraulic capsule (34) are mounted in the hollow space formed by the buffer rod (21) and the reverse-drawn recess (20). The invention provides a greater active length for energy absorption in case of impact than a sequential box arrangement and a standard sleeve buffer.
    Type: Grant
    Filed: October 11, 2000
    Date of Patent: May 28, 2002
    Assignee: Siemens Krauss-Maffei Lokomotiven GmbH
    Inventor: Sieghard Schneider
  • Patent number: 6378903
    Abstract: A shock absorbing apparatus for a steering column includes: a sliding capsule having a collar portion fixed immovably to a vehicle body; and a column bracket having a shock absorbing hole which is elongated in a longitudinal direction of a steering column and in which a fixing through-hole portion on one end side of the elongated hole, a first shock absorbing portion having a shaft-like member in a vicinity of the fixing through-hole portion, and a second shock absorbing portion having a crushable inner peripheral edge at a side edge of the elongated hole are substantially continuously formed in the longitudinal direction. During a collision, the collar portion bends the shaft-like member and crushes the second shock absorbing portion to thereby absorb colliding energy.
    Type: Grant
    Filed: February 17, 2000
    Date of Patent: April 30, 2002
    Assignee: Kabushiki Kaisha Yamada Seisakusho
    Inventors: Mitsuo Yabutsuka, Isao Fujiu, Norihiko Yokota, Koji Hirooka
  • Publication number: 20020043809
    Abstract: An impact energy absorption system for vehicles, comprising a cross member (16) housing a series of composite alveolar structures or buffers (10, 10A) which co-operate with an element (14) made of foamed plastic resin; the alveolar structure (10, 10A) is made of plastic resin preferably derived from polycarbonate and can feature a taper at at least one of the longitudinal ends where a containment element (22) can be provided.
    Type: Application
    Filed: October 12, 2001
    Publication date: April 18, 2002
    Inventor: Mario Vismara
  • Patent number: 6361092
    Abstract: An arrangement of a frame rail bumper beam combination is provided which has a frame rail for connection with a chassis of an automotive vehicle, and a bumper beam having a tubular cross-sectional shape with a first section connected with the frame rail, and a first upper surface between a front end and a rear end of the bumper beam, and the bumper beam having at least first and second cutouts in the first surface with a web therebetween that causes the rail to plastically deform in the first section of the bumper beam in a crash.
    Type: Grant
    Filed: November 13, 2000
    Date of Patent: March 26, 2002
    Assignee: DaimlerChrysler Corporation
    Inventors: Paul J Eagle, James A Cotton, Anne Ridenour, Sherry A Feldpausch, Patrick J Gibbons, Jason D Shawver, Kristin Godfrey
  • Patent number: 6357565
    Abstract: A shock-absorbing device is intended to be mounted on a spindle headstock of a machine tool. The spindle headstock includes a motor driven spindle unit connected to an upright by a support. The shock-absorbing device comprises a yieldable structure connected on one side to the spindle unit and on the other side to the support, and is adapted to yield upon an accidental collision of the spindle headstock against a workpiece. A collision sensor or is associated with the yieldable structure for detecting the yielding thereof resulting from an accidental collision of the spindle headstock with a workpiece, and for transmitting in response thereto a signal to a machine tool control unit.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: March 19, 2002
    Assignee: Machining Centers Manufacturing S.p.A.
    Inventors: Giuseppe Bolledi, Massimo Bertuzzi
  • Publication number: 20020030313
    Abstract: A vibration isolation device comprising a housing with a housing wall that defines a housing chamber, a first spring pack, a second spring pack, and a surface effect damper located between the first and second spring packs. The first and second spring packs and damper being located in the housing chamber. The isolation device further comprises a fuse mechanism which causes the device to act as a hard mount before the fuse is actuated and as a soft mount after the fuse is actuated.
    Type: Application
    Filed: June 1, 2001
    Publication date: March 14, 2002
    Inventor: Paul T. Herbst
  • Publication number: 20020017805
    Abstract: A composite modular energy absorbing assembly with one or more gamma structures 100 that are interposed with one or more delta structures 200. The gamma structures have a base 12′ and a plurality of recesses 16′ defined therewithin. The recesses 16′ have at least one wall 20′ extending from the associated base 12′. At least some of the recesses 16′ are oriented such that their walls are substantially parallel to a major incident component of an impacting force. The walls 20′ collapse. The delta structures 200 have a lattice 210 of interconnected strands which intersect to define a plurality of cells 220. The plane of at least some of these cells are substantially parallel to the impacting force. The lattice collapses during energy absorption. The composite assembly serves to decelerate an object that impacts thereupon in order to maximize energy absorption over a given distance.
    Type: Application
    Filed: June 19, 2001
    Publication date: February 14, 2002
    Applicant: Oakwood Energy Management, Inc.
    Inventors: Phillip Patrick Carroll, Joel Matthew Cormier, Donald Scott Smith, Richard Francois Audi
  • Patent number: 6339970
    Abstract: In a steering column (1) which is telescopic in the event of a crash, an outer column tube (6) is connected to a stem (7) by means of a shearing body (10). This two-piece shearing body (10) has a shearing area which is reduced relative to its external dimensions and is determined by a projection connecting its two sections (11, 12). The shearing body (10) can therefore absorb relatively large axial forces, for example for assembly purposes, and yet permits maximum admissible shearing forces which can be set largely as desired and which at the same time can be reproduced with high accuracy.
    Type: Grant
    Filed: October 21, 1999
    Date of Patent: January 22, 2002
    Assignee: Mannesmann VDO AG
    Inventor: Waldemar Blex
  • Patent number: 6328259
    Abstract: A shock strut is provided for a landing gear assembly in an aircraft including a variable load shear collar. The shock strut includes a housing having first and second pistons axially disposed therein. An annular shear collar is rotatably coupled about the housing and includes an inner radial wall, an outer radial wall and a plurality of axially spaced apart shear flanges radially extending from the inner radial wall. The second piston includes a plurality of axially spaced apart force transmitting flanges radially extending therefrom which abuttingly engage the plurality of shear flanges. The degree to which the force transmitting flanges engage the shear flanges corresponds to a circumferential orientation of the shear collar relative to the second piston. The amount of abutting engagement dictates the amount of force required to shear the shear flanges, thereby allowing the second piston to stroke.
    Type: Grant
    Filed: June 6, 2000
    Date of Patent: December 11, 2001
    Assignee: The Boeing Company
    Inventor: Akif O. Bolukbasi
  • Patent number: 6324935
    Abstract: A vehicle steering assembly includes a mounting bracket for the steering column, such that during a crash situation friction surfaces on the steering column slides through an opening in a plastic block carried by the mounting bracket. The friction surfaces have an interference fit with the opening in the plastic block, so that during normal operation of the vehicle the steering column is effectively locked to the mounting bracket.
    Type: Grant
    Filed: November 22, 1999
    Date of Patent: December 4, 2001
    Assignee: DaimlerChrysler Corporation
    Inventors: Robert M. Schoen, Paul Thompson
  • Patent number: 6298962
    Abstract: There is disclosed a member for use with an arm that is used as an automobile suspension arm, for example. The member comprises a rodlike body and bushing-mounting portions formed at both ends of the rodlike body. The rodlike body consists of a hollow tube fabricated by extruding an aluminum material into a circular cross section. The bushing-mounting portions are formed by welding bushing-mounting members to both ends of the rodlike body. Each bushing-mounting member has a hole in which a bushing is mounted with a press fit. The curved wall of the rodlike body is recessed at the longitudinal center of the rodlike body. When an automobile having the aforementioned member collides, an axial compressive load is applied to the rodlike body. The rodlike body buckles at the recessed portion. This mitigates the impact in the collision.
    Type: Grant
    Filed: March 12, 1999
    Date of Patent: October 9, 2001
    Assignee: Showa Denko K.K.
    Inventors: Rentaro Kato, Koji Uchino, Yuichi Ogawa, Masaharu Tochigi, Masatoshi Enomoto, Naoki Nishikawa, Noriyuki Iwameji, Naoyuki Kawata
  • Patent number: 6293614
    Abstract: An impact absorbing member is provided that can absorb impact energy in an upper vehicle body portion. The member may be provided in n interval between a vehicle body structural member and an interior trim spaced from the structural member. The energy absorbing member is a hybrid pipe having a metal foil core member and sheets laminated on opposite surfaces of the core member, each sheet being formed from a material other than metal. The core member and the sheets on the opposite surfaces of the core member are shaped so that the hybrid pipe has protruded portions and recessed portions that are contiguous in a direction of an axis of the hybrid pipe. Various configurations are provided to adjust and control energy absorbing characteristics of the energy absorbing member.
    Type: Grant
    Filed: September 19, 2000
    Date of Patent: September 25, 2001
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Isamu Takahara, Katsumi Kato
  • Patent number: 6286385
    Abstract: A shift lever device includes a shift lever which allows selection of an arbitrary shift range by shift operation and which is rotatably supported by a structure that breaks when an axial impact force above a preselected magnitude is applied to the shift lever. The breakage of the supporting structure allows safer absorption of an impact force applied to the shift lever. The breakable supporting structure may take the form of a portion of a thin portion of a circular wall forming a bearing that rotatably supports the shift lever, or a frangible pin or bracket that pivotably supports the shift lever.
    Type: Grant
    Filed: December 2, 1997
    Date of Patent: September 11, 2001
    Assignee: Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho
    Inventors: Masaya Nishimura, Kazuhiro Sato, Masaki Fujita, Yoshitaka Watanabe, Hitoshi Kanazawa, Noriyasu Shamoto
  • Patent number: 6286895
    Abstract: A control device for controller rigidity of a car body has a device for adjusting rigidity of a right side frame and a left side frame extending in the longitudinal direction of a car. The device is attached to the side frames. The control device has a controller for controlling operation of the device for adjusting rigidity of the right and left side frames according to a form of collision judged by an output of a collision detector such as an acceleration sensor. Further, a control device for controlling deformation of a frame has an actuator for generating a force in a direction of restricting or facilitating deformation of a frame, an external force detection sensor for detecting an external force inputted into the frame, and a controller for controlling operation of the actuator according to an output signal of the external force detection sensor. The actuator is arranged in a portion of the frame in which deformation of the frame greater than that of the periphery is predicted.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: September 11, 2001
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Yuta Urushiyama, Eisei Higuchi
  • Patent number: 6279680
    Abstract: A first end of a metal strip is separated into first and second tabs which are connected in series between first and second members. At least one line of interruptions extends along an intermediate portion of the strip from a point of separation between the tabs and a point proximate a second, opposite end of the strip. The second end of the strip is coiled inside the intermediate portion of the strip, so that tensile force applied to either of the members is absorbed both by tearing of the metal strip and uncoiling of the metal strip.
    Type: Grant
    Filed: March 1, 2000
    Date of Patent: August 28, 2001
    Assignee: D B Industries, Inc.
    Inventor: Scott C. Casebolt
  • Patent number: 6274211
    Abstract: The deformable element for absorbing kinetic energy is a plastic pipe section (1) having interior surfaces at opposite ends thereof. The plastic pipe section (1) initially deforms elastically under an applied axial force (F) and, when a yield stress limit is exceeded by the applied axial force (F), the plastic pipe section (1) deforms or collapses with an approximately equal deforming force over a work stroke until adopting a physically deformed shape in which the interior surfaces at the opposite ends contact each other. The device for absorbing kinetic energy is also described including several plastic pipe sections stacked in a column with an intermediate plate between each adjacent pair of pipe sections. The plastic pipe sections and engaged around a tubular round body for support and guidance. An inner screw bolt can also be provided for pre-tensioning the plastic pipe sections.
    Type: Grant
    Filed: August 20, 1999
    Date of Patent: August 14, 2001
    Assignee: Ringfeder VGB GmbH
    Inventor: Friedhelm Detzner
  • Patent number: 6270131
    Abstract: A partitioned impact absorber comprising an array of partitions extending parallel to a given impact direction. The absorber is constituted by at least two mutually-engageable blocks, each block having partitions, the partitions of each block interfitting between the partitions of the other block so as to build up the array of partitions of the absorber.
    Type: Grant
    Filed: March 2, 2000
    Date of Patent: August 7, 2001
    Assignee: Compagnie Plastic Omnium
    Inventors: Bernard Martinez, Olivier Cornet
  • Patent number: 6247745
    Abstract: A modular energy absorbing assembly 10 comprising at base 12, and at least one energy absorbing module 14 associated with the base for accommodating deformation of the assembly. At least some of the energy absorbing modules have a plurality of recesses 16 defined within the base. Each of the plurality of recesses has a floor and at least one wall extending from the floor to the base. An intermediate segment extends between the floor and the at least one wall. The intermediate segment has an average radius (R). At least some of the recesses are oriented such that their floors are substantially orthogonal to a major incident component of the impacting force and their walls are inclined at an angle (&agr;) to the major incident component of the impacting force, where (0<&agr;<45 degrees), in order to maximize energy absorption by the wall over a given distance. The wall at least partially collapses and at least some of the recesses become at least partially compressed during energy absorption.
    Type: Grant
    Filed: February 7, 2000
    Date of Patent: June 19, 2001
    Assignee: Oakwood Energy Management, Inc.
    Inventors: Phillip Patrick Carroll, III, Joel Matthew Cormier, Donald Scott Smith, Richard Francois Audi
  • Patent number: 6231095
    Abstract: A channeled energy absorption unit for a vehicle bumper impact system to absorb impact energy and forestall or minimize damage to vehicle frame rails under impact. The basic embodiment is a tube with one end flared and welded at a hole in one end plate or directly to the vehicle frame rail. When loaded axially, the tube splits, peels and is inverted to absorb impact in a generally square wave energy absorption. Preferred channels in the tube stabilize the failure mode during this process to assure a predetermined energy absorption characteristic.
    Type: Grant
    Filed: December 23, 1999
    Date of Patent: May 15, 2001
    Assignees: Benteler Automotive Corporation, Ford Motor Company
    Inventors: Shui Fang Chou, Todd W. J. Tjoelker, Alessandro Libriani
  • Patent number: 6223619
    Abstract: A steering shaft includes: an outer shaft having an inner splined portion; an inner shaft having a shaft portion and an outer splined portion which are arranged continuously along an axial direction; a retaining portion formed on at least one of the outer splined portion and the shaft portion; a sliding coupling section formed by a coupling portion of the outer shaft and a coupling portion of the inner shaft so as to allow the outer shaft and the inner shaft to be telescopically slidable in the axial direction relative to each other by means of splines; and a sliding resin member which is filled in a space formed in the sliding coupling section between an opening portion of the outer shaft and the retaining portion of the inner shaft.
    Type: Grant
    Filed: November 10, 1999
    Date of Patent: May 1, 2001
    Assignee: Kabushiki Kaisha Yamada Seisakusho
    Inventors: Kenji Shibata, Mitsuo Hoshino, Katuhiko Fujita, Hitoshi Matsumoto
  • Patent number: 6220410
    Abstract: An extrusion damper for interposing between two members to absorb energy of motion which may be induced between the two comprises an outer jacket (1) surrounding a body of plastically deformable energy absorbing material (3) such as lead and a shaft (2) which moves through the outer jacket to deform the lead during induced motion. The body of lead may be fixed relative to the outer jacket and the shaft has a portion of reduced diameter (2a) which moves through the lead. Alternatively the body of lead may be fixed to the shaft and the outer jacket has a portion of enlarged diameter (21a) through which the energy absorber passes. The body of energy absorbing material may optionally be subjected to approximately hydrostatic pressure preferably exceeding the shear yield stress of the energy absorbing material.
    Type: Grant
    Filed: April 22, 1996
    Date of Patent: April 24, 2001
    Assignee: Damping Systems Limited
    Inventor: William Henry Robinson
  • Patent number: 6216552
    Abstract: A steering column arrangement for a motor vehicle includes a steering wheel, a telescoping steering spindle, and a telescoping jacket tube made up of a lower tube part and an upper tube part. The steering wheel is connected by way of the spindle to a steering gear and the spindle is rotatably mounted in the jacket tube, the lower tube part being supported by a lower steering column bearing on a first support component which projects the passenger compartment in the event of a frontal collision and the upper tube part being supported by an upper steering column bearing on a second support component which substantially retains its position in event of a frontal collision. An unlocking device normally couples the second support component and the upper tube part and is activatable to uncouple them in the event of a frontal collision, and a wedge member is movable in the event of a frontal collision to prevent and/or diminish an upward movement of the steering wheel.
    Type: Grant
    Filed: July 29, 1999
    Date of Patent: April 17, 2001
    Assignee: Volkswagen AG
    Inventors: Klaus Friedewald, Joachim Klement
  • Patent number: 6199941
    Abstract: An impact absorbing member is provided that can absorb impact energy in an upper vehicle body portion. The member may be provided in an interval between a vehicle body structural member and an interior trim spaced from the structural member. The energy absorbing member is a hybrid pipe having a metal foil core member and sheets laminated on opposite surfaces of the core member, each sheet being formed from a material other than metal. The core member and the sheets on the opposite surfaces of the core member are shaped so that the hybrid pipe has protruded portions and recessed portions that are contiguous in a direction of an axis of the hybrid pipe. Various configurations are provided to adjust and control energy absorbing characteristics of the energy absorbing member.
    Type: Grant
    Filed: April 19, 1999
    Date of Patent: March 13, 2001
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Isamu Takahara, Katsumi Kato
  • Patent number: 6189941
    Abstract: An energy-absorbing deformation system for a motor vehicle has at least one collapsing section movable with energy absorption from an extended absorption position into a telescoped deformation position. The at least one collapsing section is held in the normal resting position in its deformation position, and a drive device is associated with the at least one collapsing section. The collapsing section can be moved abruptly into an absorption position when the drive device is activated.
    Type: Grant
    Filed: January 26, 1999
    Date of Patent: February 20, 2001
    Assignee: DaimlerChrylser AG
    Inventor: Matthias Nohr