Including End Thrust Member Patents (Class 267/170)
  • Patent number: 10102933
    Abstract: A control rod assembly including at least one movable control rod including a neutron absorbing material, a control rod drive mechanism (CRDM) for controlling movement of the at least one control rod, and a coupling operatively connecting the at least one control rod and the CRDM. The coupling includes a terminal element engaged with a connecting rod of the CRDM and the at least one moveable control rod, and a kinetic energy absorbing element supported by the terminal element for absorbing kinetic energy during a SCRAM event, the kinetic energy absorbing element configured to act between the terminal element and an upper plate of an associated fuel assembly.
    Type: Grant
    Filed: July 19, 2012
    Date of Patent: October 16, 2018
    Assignee: BWXT mPower, Inc.
    Inventors: Lewis A. Walton, Anne R. Austin, Jean H. Raas
  • Patent number: 10052944
    Abstract: A unit bearing includes a bearing body configured to be received by a rigid bearing housing provided with an opening on at least one side, a carrier element and at least one support member engaging the rigid bearing housing through the opening. The bearing body includes elastomer abutments. The elastomer abutments are disposed between the rigid bearing housing and the support member. The carrier element is disposed between the support member and the elastomer abutments. The unit bearing is configured such that relative movements of the bearing body with respect to the bearing housing caused by loading of the support member along three mutually orthogonal directions are limited by the elastomer abutments.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: August 21, 2018
    Assignee: BOGE Elastmetall GmbH
    Inventors: Sven Jung, Frank Nelles
  • Patent number: 10005334
    Abstract: A shock absorber includes a shock absorber body, a suspension spring, a spring seat, and a spring rubber seat. The seat surface of the spring rubber seat is formed inclined so as to be higher toward a distal end within a predetermined range from the distal end where a spiral portion of the suspension spring becomes apart to a side where the spiral portion of the suspension spring abuts. A concave portion surrounded by a portion abutting on the spring seat is formed on a lower side of the predetermined range in a lower part of the spring rubber seat.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: June 26, 2018
    Assignees: KYB Corporation, HONDA MOTOR CO., LTD.
    Inventors: Kazuma Ando, Yasutaka Ohta, Koji Takami
  • Patent number: 9970487
    Abstract: A damper device is provided with a first rotating body, a second rotating body, a coil spring and a spring seat. The coil spring is interposed in a circumferential direction between the first and second rotating bodies. The resin spring seat includes a seat portion, an overhang portion and a pair of clamping protrusions. The overhang portion extends in the circumferential direction from an outer diameter end of the seat portion and covers an outer diameter side of the coil spring. The clamping protrusions protrude from the seat portion and sandwich an attaching portion of the one of the rotating bodies. The clamping protrusions are relatively turnable in a radial direction of the rotating bodies. The clamping protrusions have a low-rigidity portion on an outer diameter direction side of the spring central axis and a high-rigidity portion on an inner diameter direction side of the spring central axis.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: May 15, 2018
    Assignees: Nissan Motor Co., Ltd., Exedy Corporation
    Inventors: Tomoharu Fujii, Yuuzou Akasaka, Hiroki Uehara, Yoshinari Yoshimura, Takeshi Senoue
  • Patent number: 9951783
    Abstract: This centrifugal compressor is provided with an impeller mounted on a main shaft rotating around an axis line, and a vane device for adjusting the flow rate of a fluid in an inflow flow path to the impeller. The vane device includes: a plurality of vane main bodies provided at intervals in a circumferential direction, wherein a mounting angle of the plurality of vane main bodies is changed by rotating the shaft portion; a plurality of link members which is rotated along with the shaft portion; a drive ring which is formed with an annular shape centered on the axis line and is moved in a moving direction along a rotation locus of the link member, and a drive mechanism which is connected to the drive ring and transmits a force in a tangential direction to the drive ring.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: April 24, 2018
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Osamu Hasegawa, Yasushi Hasegawa, Shintaro Omura, Kenji Ueda
  • Patent number: 9909625
    Abstract: A damper device is provided with a first rotating body, a second rotating body, a coil spring and a spring seat. The coil spring is interposed in a circumferential direction between the first and second rotating bodies. The resin spring seat includes a metallic core member inside. The resin spring seat has a seat portion and an overhang portion. The metallic core member has an overhang metallic core part that has a low-rigidity portion and a high-rigidity portion. The low-rigidity portion is provided on a side close to the seat portion with a relatively lower rigidity. The high-rigidity portion is provided on a side far from the seat portion with a relatively higher rigidity.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: March 6, 2018
    Assignees: Nissan Motor Co., Ltd., Exedy Corporation
    Inventors: Hiroki Uehara, Yuuzou Akasaka, Makoto Ogata, Yoshinari Yoshimura, Takeshi Senoue
  • Patent number: 9895948
    Abstract: A spring isolator for a wheel suspension may include a first side configured to rest on a spring plate of the suspension. The spring isolator may also include a second side, opposite the first side, configured to receive a last coil of a coil spring of the suspension to support the coil spring on the spring plate. The first side may have at least one cavity extending through a thickness of the isolator toward the second side. An elasticity of the isolator between the first and second sides may prevent the last coil from breaking contact with the second side during operation of the suspension.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: February 20, 2018
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Jason Paulding, Juergen Funke, Jon Roland Watson, Thorsten Dirk Krupp, Paul Godesberg
  • Patent number: 9879459
    Abstract: In a combined acceleration and deceleration device with a carrier housing and a carrier element which is movable along at least one guide track of the carrier housing between a force and/or form-locking park position and an end position under the control of an acceleration arrangement and a deceleration arrangement including a hydraulic cylinder-piston unit with a spring return structure. The cylinder-piston unit carries a guide member which is guided by the guide track and has a curved stop surface and the carrier element has a curved push surface with the push surface area and the stop surface area having different radii of curvature so that they contact each other maximally along a contact line.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: January 30, 2018
    Inventors: Guenther Zimmer, Martin Zimmer
  • Patent number: 9770957
    Abstract: A suspension coil spring that is to be installed between an upper side pedestal and a lower side pedestal of a strut type suspension for a vehicle includes a coil spring main body such that, in an installation state, an upper coil end is disposed on the upper side pedestal and a lower coil end is disposed on the lower side pedestal, the upper side pedestal and the upper coil end contact at two upper contact points, and the lower side pedestal and the lower coil end contact at one lower contact point. The two upper contact points are separated in a front-to-rear direction of the vehicle. The one lower contact point is disposed at a position that is in a direction toward outside the vehicle from a plane that passes through the two upper contact points and that is parallel to a coil central axis.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: September 26, 2017
    Assignee: MITSUBISHI STEEL MFG. CO., LTD.
    Inventors: Masanori Sano, Hironobu Sayama, Toru Hirokane
  • Patent number: 9713946
    Abstract: A strut-type suspension includes a compression coil spring, a lower spring seat, an upper spring seat, and a shock absorber. The compression coil spring is disposed at a position offset to the outer side of a vehicle with respect to the shock absorber. The compression coil spring is mounted in a vehicle body in such a state that it is compressed between spring seats. The compression coil spring includes a large-diameter wire portion and a small-diameter wire portion. The large-diameter wire portion is provided in a vehicle inner-side portion of the compression coil spring. The small-diameter wire portion is provided in a vehicle outer-side portion. A wire diameter of the large-diameter wire portion is greater than a wire diameter of the small-diameter wire portion.
    Type: Grant
    Filed: May 4, 2015
    Date of Patent: July 25, 2017
    Assignee: NHK SPRING CO., LTD.
    Inventors: Kenji Yamamotoya, Hideto Enomoto, Ken Takahashi, Toshiaki Sato, Mitsuhiro Sugiyama, Yoshio Kobayashi, Taichi Inage, Tomotake Kato, Akihiko Nishikawa, Masahiro Umezawa, Michihiko Ayada, Suguru Kajigaya
  • Patent number: 9694638
    Abstract: A spring rubber seat provided between a spring formed by winding a wire rod to elastically support a chassis and a spring seat where the spring is placed. The spring rubber seat includes an arc seat portion having a seat surface where the spring is seated; and a link portion that links one circumferential end with the other circumferential end of the seat portion to make the spring rubber seat in an annular shape.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: July 4, 2017
    Assignee: KYB Corporation
    Inventors: Makoto Arano, Takao Nagasawa
  • Patent number: 9254829
    Abstract: A pushing force controlling apparatus for a pedal simulator that includes a simulator cylinder in which a first pipe and a second pipe extending from a master cylinder are connected to a front side and a rear side thereof, respectively. A first solenoid valve and a second solenoid valve are installed in the first pipe and the second pipe, respectively and a first piston and a second piston are disposed at a front side and a rear side of an interior of the simulator cylinder. A buffering member is installed between the first piston and the second piston, and pedal pushing force characteristics are controlled by variably setting a position of the second piston in the simulator cylinder using an amount of fluid provided from the master cylinder during an operation of a pedal.
    Type: Grant
    Filed: April 3, 2013
    Date of Patent: February 9, 2016
    Assignee: Hyundai Motor Company
    Inventors: Gab Bae Jeon, Jae Il Choi
  • Patent number: 9050960
    Abstract: A pedal prop for imposing a load on a brake pedal, in particular in motor vehicles, in order to apply the pressure necessary during sealing tests on components of the brake system, comprising a movable part, which changes the length of the pedal prop by moving in and out, and a fixed part, wherein the movable part is supported on a point of support on the motor vehicle. According to the invention, an evaluation and control unit is provided as an integrated element, which controls an actuator in order to provide an actuating force, wherein a displacement sensor and a force sensor are provided, by which a travel and an actuating force of the actuator can be sensed.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: June 9, 2015
    Assignee: Continental Teves AG & Co. oHG
    Inventors: Thorsten Neu, Franziska Lang
  • Patent number: 8919753
    Abstract: A spring plate, especially for a MacPherson strut unit, having an axial support surface for the final turn of a helical spring. The helical spring is centered by radial centering surfaces in the area of the circumferential contour of the final turn. The centering surface is divided into individual, partial centering surfaces, which come to rest against the circumferential contour of the helical spring.
    Type: Grant
    Filed: September 13, 2005
    Date of Patent: December 30, 2014
    Assignee: ZH Friedrichshafen AG
    Inventors: Bruno Deigner, Günther Handke, Frank Hassmann, Jörg Hermes, Joachim Koberstein, Alexander Miller, Jörg Pagel, Josef Renn, Manfred Schuler, Klaus Stretz, Andreas Zietsch, Gottfried Zimmermann
  • Publication number: 20140312544
    Abstract: An efficient energy accumulation element comprising compression spring which uses end caps and flexible rope to pre-compress spring for using in actuators and other devices. The efficient energy accumulation element is independent of external surfaces or end construction of spring. The accumulation and release of energy happens noiselessly.
    Type: Application
    Filed: August 23, 2013
    Publication date: October 23, 2014
    Applicant: ROTEX MANUFACTURERS AND ENGINEERS PRIVATE LIMITED
    Inventor: Amit Shah
  • Publication number: 20140159295
    Abstract: A spring seat member includes a seat body having a seat portion and a shaft portion extending from the seat portion, and attachment members attached to the seat body. The spring seat member is attached to a coil spring in a state where the attachment members are attached to the seat body. The shaft portion has a groove on the outer periphery thereof that extends in the circumferential direction. The attachment members are provided with engaging portions that engage with the groove of the shaft portion. The engaging portions are selectively and elastically deformable inward or outward in the radial direction of the shaft portion. The groove has an inner wall facing the seat portion. The inner wall has an inclined surface. The inclined surface is inclined radially outward of the shaft portion as the distance from the seat portion in an extending direction of the shaft portion increases.
    Type: Application
    Filed: October 17, 2012
    Publication date: June 12, 2014
    Inventor: Yuji Nakamura
  • Publication number: 20140117602
    Abstract: A pedal simulator using a multi-stage series spring includes a cylinder into which an operation rod connected to a brake pedal is inserted; a piston installed in the cylinder to receive a force of the operation rod; a plurality of springs installed between the cylinder and the piston to resiliently support the piston in the cylinder and disposed to overlap each other from an inner side to an outer side; and a plurality of spring seats disposed in the cylinder to overlap each other from an inner side to an outer side and configured to support the springs while being interposed between the springs, wherein the springs are installed between the piston, the spring seats, and the cylinder such that the plurality of springs are connected to each other in a multi-stage series structure.
    Type: Application
    Filed: November 29, 2012
    Publication date: May 1, 2014
    Applicant: Hyundai Motor Company
    Inventor: Gab Bae JEON
  • Patent number: 8646762
    Abstract: A spring installation mechanism includes a bracket fixed against displacement, a spring that extends along an axis and includes first and second ends, the second end being fixed against displacement, a retainer secured to the first end and including helical threads, and a screw including a shank having helical threads engaged with the threads of the retainer, axial displacement of the screw toward the retainer limited by contact with the bracket, said contact permitting rotary displacement of the screw relative to the retainer and the spring.
    Type: Grant
    Filed: October 6, 2011
    Date of Patent: February 11, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Gary W. Krajenke, Alvin N. Standard, Edward L. Schulte
  • Patent number: 8608142
    Abstract: Device for absorbing kinetic energy of a moving body includes a plastically deformable helical spring having a stack of convolutions, the inner surfaces of which delimit a passage. At least a part of the convolutions can be pulled successively through the passage. Due to the resulting deformation of the convolutions, energy can be absorbed.
    Type: Grant
    Filed: May 2, 2010
    Date of Patent: December 17, 2013
    Assignee: Geobrugg AG
    Inventors: Hans Peter Von Allmen, Toni Baer, Rudolf Rüegsegger
  • Publication number: 20130175747
    Abstract: A spring seat is interposed between a spring and a suspension arm supporting the spring. The spring seat includes a support portion for supporting the spring, and an upright partition portion disposed on one side of the spring seat in a lateral direction of the spring seat. The upright partition portion is formed integrally with the support portion for covering a side surface of the spring. The suspension arm includes a recessed portion supporting the spring, and the partition portion has a height equal to or greater than a height of the recessed portion. The partition portion includes a guide surface for upward or laterally guiding foreign matters coming from an outside of the spring seat in the lateral direction of the spring seat.
    Type: Application
    Filed: December 5, 2012
    Publication date: July 11, 2013
    Applicant: HONDA MOTOR CO., LTD.
    Inventor: Honda Motor Co., Ltd.
  • Publication number: 20130069291
    Abstract: A spring assembly includes telescopically adjustable inner and outer members biased in an extension direction by a coil spring. A non-stretch fabric sleeve fitted about an inner diameter and an outer diameter of the coil spring is closed at its opposite ends to apply a compression preload to the coil spring. The fabric sleeve prevents transmission of the preload to the inner and outer telescoping members, thereby eliminating stickiness and the popping sound that are drawbacks of the prior art, and the fabric sleeve also provides general noise reduction when the spring assembly changes length.
    Type: Application
    Filed: September 19, 2012
    Publication date: March 21, 2013
    Inventor: John K. Roma
  • Patent number: 8181947
    Abstract: To provide a spring assembly whose production cost is low. It includes a coil spring 1, and a pair of retainers 2 disposed respectively at opposite end portions of the coil spring 1, and the retainer 2 includes a plate member 3 abutting against the end portion of the coil spring 1 and depressed at a central portion thereof toward the inside of the coil spring 1, and a hook member 4 fixed to the plate member 3 so as to hold a free length of the coil spring 1 shortened.
    Type: Grant
    Filed: March 15, 2006
    Date of Patent: May 22, 2012
    Assignee: Piolax Inc.
    Inventor: Shinsuke Akahori
  • Publication number: 20120038255
    Abstract: The invention relates to an arrangement for locking and ejecting a movable furniture part, comprising two unlockable ejection devices arranged on both sides of a furniture body or on the movable furniture part, and spring-loaded ejectors, wherein the unlockable ejection devices comprise a catch element mounted on a linearly displaceable carriage, the catch element engaging into a slotted guide path having the shape of a heart curve and by which the movable furniture part can be held in a closed latching position (E) via a locking element. According to the invention, this latching position (E) can be released by overpressing the movable furniture part towards the interior, wherein the linearly displaceable carriages of the two unlockable ejector devices are motionally coupled via a rotatable synchronization rod.
    Type: Application
    Filed: October 27, 2011
    Publication date: February 16, 2012
    Inventors: Emanuel NETZER, Andreas HOLZER
  • Patent number: 8100346
    Abstract: A piezoelectrically actuated device includes a body, a valve disposed within the body and an actuator for the valve, the actuator including a casing coupled with the body and a piezoelectric element disposed within the casing The actuator further includes a multi-function spring applying a preloading force to the piezoelectric element. The multi-function spring includes a first segment having a piston configured to translate a motion of the piezoelectric element during operation of the actuator, a second segment having at least one flexural element and a third segment having a first set of threads. The first set of threads is engaged with a second set of threads of the actuator and maintains the second segment in a tension state which corresponds with the preloading force.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: January 24, 2012
    Assignee: Caterpillar Inc.
    Inventors: Jayaraman Venkataraghavan, Zhenlong Xu, Kenneth C. Adams, Stephen Lewis
  • Patent number: 7929859
    Abstract: In a camera device 1a with a shutter button 2 for transmitting an externally-applied pressing force to a switch 7, a boss 24 has a first end attached to the shutter button 2, and a second end opposed to the switch 7, a coil spring 6a has a first winding portion 61a and a second winding portion 62a, which are respectively wound into first and second shapes about a common central axis As, the second shape includes the first winding portion 61a, and the second end of the boss 24 is inserted into the first winding portion 61a.
    Type: Grant
    Filed: December 7, 2007
    Date of Patent: April 19, 2011
    Assignee: Panasonic Corporation
    Inventor: Jun Saiki
  • Patent number: 7766312
    Abstract: A coil spring reduces Hertzian stress on a first turn and bending stress on a coil end. A coil end 11 is shifted in a diametral outer or inner direction of a coil spring relative to the first turn 13, to form a vertical gap between the coil end 11 and the first turn 13 in a free state without load on the coil spring. Due to the gap, the coil spring including the coil end 11 and first turn 13 can be entirely processed by shot peening as well as the remaining portion. The first turn 13 receives a combination of torsional stress and Hertzian stress (contact stress). Since the coil end 11 that receives high Hertzian stress is shifted in a diametral outer or inner direction of the coil spring relative to the first turn 13, a contact point on the first turn 13 is shifted in the diametral outer or inner direction to reduce the torsional stress on the first turn 13.
    Type: Grant
    Filed: May 31, 2006
    Date of Patent: August 3, 2010
    Assignee: NHK Spring Co., Ltd.
    Inventors: Noritoshi Takamura, Satoru Tendo
  • Patent number: 7677540
    Abstract: A mechanism for converting the force from a linear extension spring into a constant force. A cable, connected to the spring, rides in a variable radius input pulley groove. A second cable rides in a variable radius output pulley groove. The dual pulley mechanism is smaller than previous spiral pulley mechanisms. The output force and stroke is a function of the sizes of both pulleys. A standardized design enables a small number of input and output pulleys to cover a large range of applications. An end plug in a helical spring can be used to make fine adjustments to the output force. The pulleys can be accurately phased relative to each other with a spline mechanism. The pulley grooves may lie in a plane, or they may advance in an axial direction as the pulley rotates. By continuously varying the rate of axial advance, the tangent to the groove can be aimed or focused at an external point. The focused groove reduces cable friction and wear.
    Type: Grant
    Filed: April 2, 2004
    Date of Patent: March 16, 2010
    Inventor: Eugene F. Duval
  • Publication number: 20100007254
    Abstract: In a pull arrangement including a housing with a guide structure movably supporting a carrier element which has a park position at one end of the guide structure and a rest position at the other end and a reversing structure is provided at the other end of the guide structure and a tension spring extending around the reversing structure is connected with one end to the carrier element and the opposite end to the housing for moving the carrier element to the end position, the tension spring comprises an area of high spring stiffness where it extends around the reversing structure and an area of low spring stiffness where the spring is connected to the housing away from the reversing structure.
    Type: Application
    Filed: August 14, 2009
    Publication date: January 14, 2010
    Inventors: Günther Zimmer, Martin Zimmer
  • Publication number: 20090299343
    Abstract: A stiffenable structure is made of longitudinal beams that are positioned around a longitudinal axis. In one state, the longitudinal beams are bendable so that the structure is bendable. As the structure bends, the longitudinal beams slide longitudinally with reference to one another. In a second state, the beams are clamped in a fixed position relative to one another so that the structure is stiffened. In some aspects the longitudinal beams are made of two or more longitudinal laminar elements. As each beam bends, the laminar elements slide longitudinally with reference to one another. Each beam, and accordingly the structure, is stiffened by preventing the laminar elements from sliding longitudinally relative to one another.
    Type: Application
    Filed: May 27, 2008
    Publication date: December 3, 2009
    Applicant: Intuitive Surgical, Inc.
    Inventor: THEODORE W. ROGERS
  • Publication number: 20090273129
    Abstract: In a combined deceleration and acceleration device for the controlled closing and opening of, for example, furniture parts, a base part consisting of a cylinder and a guide structure is provided wherein a drag element is movably supported by the guide structure, and a piston with a piston rod is connected to the drag element which has a park position remote from the cylinder and is biased by an energy storage structure toward the cylinder for moving the piston into the cylinder in a controlled decelerating manner while carrying along the drag element and a movable part engaged with the drag element.
    Type: Application
    Filed: June 10, 2009
    Publication date: November 5, 2009
    Inventors: Gunther Zimmer, Martin Zimmer
  • Patent number: 7568682
    Abstract: The invention describes a point-type, spring-supported suspension means for noise protection sheets.
    Type: Grant
    Filed: January 22, 2005
    Date of Patent: August 4, 2009
    Assignee: Roehm GmbH & Co. KG
    Inventors: Peter Seelmann, Martin Petschnig
  • Publication number: 20090174128
    Abstract: A device for adjusting the elastic force exerted by a plurality of springs, wherein there are provided main springs and auxiliary springs connected to two mutually movable structures. There are provided means for operatively coupling or uncoupling the connection of the free end of one or more of the auxiliary springs with respect to at least one of the structures.
    Type: Application
    Filed: April 18, 2007
    Publication date: July 9, 2009
    Applicant: DONATI S.P.A.
    Inventor: Armando Donati
  • Publication number: 20090166940
    Abstract: A spring plate for supporting a coil spring of a vibration damper includes a metal base body and a plurality of discrete insulating segments positioned on the base body. Each insulating segment has a contact surface which contacts an end of the coil spring, and an edge part which prevents the spring from migrating radially. Each insulating segment can be replaced independently of the other insulating segments.
    Type: Application
    Filed: June 16, 2006
    Publication date: July 2, 2009
    Inventor: Dieter Lutz
  • Patent number: 7527252
    Abstract: A spring spacer is provided to improve the durability of a spring, which is made of Ti or the like and low in surface hardness, by preventing abrasion With the spring spacer placed between a first turn and a second turn of a Ti spring, the spring spacer prevents an end of the first turn from contacting the second turn. The spring spacer includes a contact preventive portion that is interposed between the first turn and the second turn of the Ti spring to prevent the end of the first turn from contacting with the second turn. A holding portion holds the contact preventive portion on the spring or the spring bearing surface. The spring spacer can be used in a variety of applications, including on vehicle suspension springs, engine valve spring, and similar lightweight springs.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: May 5, 2009
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventor: Satoshi Oohashi
  • Publication number: 20090008846
    Abstract: A spring seat for a suspension arranged between a vehicle body side member and a wheel side member, the spring seat supporting an end portion of a coil spring of the suspension, wherein rigidity of the spring seat in the orthogonal-to-axis direction of the coil spring is smaller than rigidity of the spring seat in the axial direction of the coil spring.
    Type: Application
    Filed: December 22, 2006
    Publication date: January 8, 2009
    Inventors: Hiroshi Yamakawa, Hitoshi Kyogoku
  • Publication number: 20080211155
    Abstract: A damper is shown for damping the movements of a valve spring in an engine. The valve spring can be housed within the damper or the damper may be located inside of the valve spring. The damper is made from a suitable polymer and has one or more slots located radially to a central axis and one or more rings or bands. The rings or bands are located on the outer surface of the damper where the valve spring is located within the damper. The rings or bands are located on the inner surface of the damper where the valve spring surrounds the damper. The cross section, number and location of the slots, rings or bands can be adjusted depending on the particular application of the damper and the amount of damping that is desired for the particular application.
    Type: Application
    Filed: April 7, 2008
    Publication date: September 4, 2008
    Inventors: Ronald N. Check, Jason B. Youd, Jonathan E. Slade
  • Publication number: 20080211156
    Abstract: A damper is shown for damping the movements of a valve spring in an engine. The valve spring can be housed within the damper or the damper may be located inside of the valve spring. The damper is made from a suitable polymer and has one or more tabs or slots located radially to a central axis and one or more helical springs, rings or bands housed in the slots or between the tabs. The helical springs, rings or bands are located on the outer surface of the damper where the valve spring is housed within the damper. The cross section, number and location of the tabs, slots, helical springs, rings or bands can be adjusted depending on the particular application of the damper and the amount of damping that is desired for the particular application. The damper can also incorporate a hub or stem seal.
    Type: Application
    Filed: April 7, 2008
    Publication date: September 4, 2008
    Inventors: Ronald N. Check, Jason B. Youd, Jonathan E. Slade
  • Publication number: 20080179800
    Abstract: An assisting ejection device is provided for assisting ejection a hatch of a hatchback. The assisting ejection device includes spring-biased rod to act on the hatch. The spring is in a compressed condition when the hatch is closed so that when the hatch is released from the closed condition, the spring that is allowed to extend provides a springing force to help pneumatic cylinders that are originally provided to automatically lift the hatch to eject the hatch toward a flip-up position. The springing force effectively reduces the load applied to the pneumatic cylinders in opening the hatch so as to extend the service life of the pneumatic cylinders.
    Type: Application
    Filed: January 29, 2007
    Publication date: July 31, 2008
    Inventor: Pei-Cheng CHIU
  • Publication number: 20070278725
    Abstract: A damper device used in a range of electronic apparatuses. The damper device allows a diverse opening and closing operations by means of a simple structure. A stationary plate and a movable plate resiliently contact, due to the action of a spring, over different contact areas as a movable shaft rotates. This enables a change in a damping force in accordance with opening and closing angles. Accordingly the damper device which allows diverse opening and closing operations, such as to open at a constant speed from immediately after starting to open, is achievable by means of a simple structure.
    Type: Application
    Filed: April 9, 2007
    Publication date: December 6, 2007
    Inventor: Makoto Miyamoto
  • Patent number: 7249757
    Abstract: A spring device consists of a coil spring case formed of right, left, back and front side plates and a spring receiving plate, a coil spring having a liner spring property, and a spring urging member for urging the coil spring into the coil spring case. A distance between the right and left side plates of the spring case is set a little larger than an outer diameter of the coil spring. A distance between the back and front side pates of the spring case is set about 1.5 to 2 times larger than the outer diameter of the coil spring, and a length of the spring case is set smaller than a free length of the coil spring. The coil spring is deformed and a non-linear spring property is obtained when the coil spring is urged through the spring urging member.
    Type: Grant
    Filed: September 18, 2003
    Date of Patent: July 31, 2007
    Assignee: Japan Servo Co., Ltd.
    Inventors: Nobuhiro Ozawa, Takeshi Kirihara, Shinji Ikeda
  • Patent number: 6883651
    Abstract: A dust cover receiving structure of a hydraulic shock absorber in which a seat rubber is interposed between a suspension spring and a spring seat. The seat rubber has a spring receiving portion which is arranged between the suspension spring and the spring seat, a centering portion which is fitted to a damper tube and guides an end portion of a dust cover in such a manner as to align the dust cover with an axial center of the damper tube, and a cover receiving portion which is provided between the spring receiving portion and the centering portion, and which receives an end surface of the dust cover.
    Type: Grant
    Filed: March 3, 2003
    Date of Patent: April 26, 2005
    Assignee: Showa Corporation
    Inventor: Yukio Fukaya
  • Publication number: 20040163909
    Abstract: Suspension strut unit comprising a cylinder, with respect to which the axial position of a spring collar can be adjusted, where the spring collar has a sleeve section which is received in a chamber provided on the outside of the cylinder. The chamber is at least partially filled with a curable material, and the sleeve section is in contact with the curable material, which, in the solid state, transmits a supporting force from the cylinder to the spring collar. The chamber has at least one isolating sleeve with a radial guide surface, by which the sleeve is in contact with the sleeve section of the spring collar.
    Type: Application
    Filed: January 16, 2004
    Publication date: August 26, 2004
    Applicant: ZF Sachs AG
    Inventors: Alexander Miller, Manfred Schuler, Klaus Stretz
  • Patent number: 6773000
    Abstract: A vibration isolation spring mount is disclosed. A compression coil spring is inserted between an inner sleeve and an outer sleeve and a pair of pads are disposed on the inner sleeve and the outer sleeve. Outwardly extending blades disposed on the open end of the inner sleeve are inserted into the spaces defined by inwardly extending teeth disposed on the open end of the outer sleeve, then the blades are rotated relative to the teeth until the teeth and the blades impingingly engage due to the compressed compression coil spring biasing the teeth against the blades.
    Type: Grant
    Filed: March 6, 2002
    Date of Patent: August 10, 2004
    Assignee: Tozen Sangyo Co., LTD
    Inventor: Mitsuhiro Oyama
  • Patent number: 6767010
    Abstract: Suspension strut comprising a cylinder and a spring perch which is axially displaceable relative to the cylinder for adjustment of the position, wherein the spring perch has a sleeve portion by which the connection to the cylinder is carried out. A chamber is arranged on the cylinder side which is at least partly filled with a moldable material. The sleeve portion contacts the moldable material, which in a solid state transmits a supporting force from the cylinder to the spring perch.
    Type: Grant
    Filed: August 28, 2002
    Date of Patent: July 27, 2004
    Assignee: ZF Sachs AG
    Inventors: Alexander Miller, Klaus Stretz, Michael Hurrlein, Manfred Schuler
  • Patent number: 6726191
    Abstract: A lower spring sheet has receiving portions on a sheet surface that supports a coil spring. Thus the sheet surface and a spring end portion of the coil spring come into contact discretely. The contact positions between the coil spring and the sheet surface maintain unchanged, however a undulated portion the spring end portion may have due to the manufacturing tolerance is extended when the coil spring is compressed.
    Type: Grant
    Filed: January 29, 2003
    Date of Patent: April 27, 2004
    Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Koichi Miyagawa, Takashi Fujii, Nobuo Momose, Junji Ogura, Masahiko Shimizu
  • Publication number: 20030209395
    Abstract: A dust cover receiving structure of a hydraulic shock absorber in which a sheet rubber is interposed between a suspension spring and a spring sheet. The sheet rubber has a spring receiving portion which is arranged and clamped between the suspension spring and the spring sheet, a centering portion which is fitted to a damper tube and guides an end portion of a dust cover in such a manner as to align the dust cover with an axial center of the damper tube, and a cover receiving portion which is provided between the spring receiving portion and the centering portion, and which receives an end surface of the dust cover.
    Type: Application
    Filed: March 3, 2003
    Publication date: November 13, 2003
    Applicant: SHOWA CORPORATION
    Inventor: Yukio Fukaya
  • Publication number: 20030178758
    Abstract: A spring element has a substantially cylindrical housing (125) and at least one spring (128) arranged therein. At least one guidance member (129) that radially braces the spring (128) is arranged between an outer side of the spring (128) and an inner wall of the housing (125).
    Type: Application
    Filed: March 11, 2003
    Publication date: September 25, 2003
    Inventor: Andrzej Metelski
  • Publication number: 20030168791
    Abstract: A vibration isolation spring mount is disclosed. A compression coil spring is inserted between an inner sleeve and an outer sleeve and a pair of pads are disposed on the inner sleeve and the outer sleeve. Outwardly extending blades disposed on the open end of the inner sleeve are inserted into the spaces defined by inwardly extending teeth disposed on the open end of the outer sleeve, then the blades are rotated relative to the teeth until the teeth and the blades impingingly engage due to the compressed compression coil spring biasing the teeth against the blades.
    Type: Application
    Filed: March 6, 2002
    Publication date: September 11, 2003
    Applicant: TOZEN SANGYO CO., LTD
    Inventor: Mitsuhiro Oyama
  • Patent number: 6616131
    Abstract: The present invention is directed to a helical compression spring for a vehicle suspension to be compressed between an upper seat and a lower seat. The spring is formed to provide an end coil center line connecting the centers of an upper end coil and a lower end coil to be offset to a coil axis of a body portion of the spring. A pitch of the lower end coil is set to tilt a lower end plane of the spring at a first predetermined angle to the lower seat in a direction for shortening the longitudinal length of one side of the spring closer to the end coil center line than the coil axis, in an unloaded state of the spring, and/or a pitch of the upper end coil is set to tilt an upper end plane of the spring at a second predetermined angle in a direction for shortening the longitudinal length of the other side of the spring closer to the coil axis than the end coil center line, in the unloaded state of the spring.
    Type: Grant
    Filed: December 13, 2001
    Date of Patent: September 9, 2003
    Assignee: Chuo Hatsujo Kabushiki Kaisha
    Inventor: Toshiyuki Imaizumi
  • Publication number: 20030111782
    Abstract: A lower spring sheet has receiving portions on a sheet surface that supports a coil spring. Thus the sheet surface and a spring end portion of the coil spring come into contact discretely. The contact positions between the coil spring and the sheet surface maintain unchanged, however a undulated portion the spring end portion may have due to the manufacturing tolerance is extended when the coil spring is compressed.
    Type: Application
    Filed: January 29, 2003
    Publication date: June 19, 2003
    Inventors: Koichi Miyagawa, Takashi Fujii, Nobuo Momose, Junji Ogura, Masahiko Shimizu