Including Seal Or Guide Patents (Class 188/322.16)
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Patent number: 11345432Abstract: A multi-bar suspension assembly for a cycle having improved stability includes a first arm having a first arm fixed pivot and a first arm shock pivot. The first arm includes a hollow internal portion having first end and a second end that are both wider than a narrow intermediate portion. A shock link has a shock link fixed pivot and a shock link floating pivot. A shock absorber has a first shock mount and a second shock mount. A wheel carrier has a wheel carrier first pivot and a wheel carrier second pivot spaced apart from one another, and a wheel mount that is adapted to be connected to a wheel. A control link has a control link floating pivot and a control link fixed pivot, the control link floating pivot being pivotably connected to the wheel carrier second pivot, and the control link fixed pivot being pivotably connected to the first arm control pivot.Type: GrantFiled: October 12, 2018Date of Patent: May 31, 2022Assignee: SPECIALIZED BICYCLE COMPONENTS, INC.Inventor: David Weagle
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Patent number: 11255390Abstract: A brake caliper is fastened to a stationary brake carrier by two fastening elements such that the caliper can slide axially relative to the brake disc. The fastening elements each have a guide bar fixedly connected to the brake carrier, of which guide bars, one guide bar is guided as a fixed bearing and the other guide bar is guided in a plain bearing, which is designed as a floating bearing having a floating bearing axis. The floating bearing has a guide bush, which reaches around the guide bar and is retained in a caliper bore such that sliding is prevented. A first tubular, variable-length seal is arranged on the end region of the guide bar far from the brake disc, which seals the guide bar from the environment and is fastened on the guide bar and in the guide bush. The first tubular, variable-length seal is clamped on the guide bar by a cap pressed into the guide bar.Type: GrantFiled: October 23, 2019Date of Patent: February 22, 2022Assignee: KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbHInventors: Rudolf Fischer, Martin Seidl
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Patent number: 10858062Abstract: A bicycle apparatus with interchangeable front fork is disclosed. The bicycle comprises a frame and a quick release assembly for securing the removable front fork attachment assembly to the bicycle frame's head tube. The interchangeable front fork attachment assembly and quick release assembly allows for the quick interchanging of front fork with varying attachments which utilize different methods to achieve motion.Type: GrantFiled: October 1, 2019Date of Patent: December 8, 2020Inventor: Robert Allen Erickson
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Patent number: 10487901Abstract: Disclosed is a magneto-rheological strut comprising a housing tube, a damper body tube, and a bearing assembly disposed between the housing tube and the damper body tube. The bearing assembly comprises a bearing sleeve, with two integral annular bearings within the bearing sleeve and bearing against the damper body tube, and two internal annular seals abutting the radially external surface of the damper body tube and defining a fluid-tight internal lubricant chamber between the internal annular seals. The bearing assembly further comprises two external annular seals abutting the internal surface of the housing tube and defining an external lubricant chamber between the external annular seals and the housing tube. The bearing sleeve further comprises a number of radial channels passing through its wall and joining the internal lubricant chamber with the external lubricant chamber.Type: GrantFiled: November 17, 2017Date of Patent: November 26, 2019Assignee: BEIJINGWEST INDUSTRIES CO., LTD.Inventors: Tomasz Roman Szostek, Rafal Konrad Kiwior
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Patent number: 9605735Abstract: A drive device comprises a housing pipe, a protection pipe, and a linear drive. The housing pipe and the protection pipe can be moved axially relative to each other in a telescopic manner. The housing pipe is arranged with the closed end thereof facing away from the protection pipe on a fixed base member or a movable component, and the protection pipe is arranged with the closed end thereof facing away from the housing pipe on the movable component or the base member. The linear drive is arranged in at least one of the housing pipe and the protection pipe, and configured to drive the housing pipe and the protection pipe such that the housing pipe and the protection pipe are axially movable relative to each other.Type: GrantFiled: January 8, 2013Date of Patent: March 28, 2017Assignee: Stabilis GmbHInventors: Marc Missler, Axel Knopp, Jan Bochen
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Patent number: 9561872Abstract: A leak detection method for detecting a leak past a dynamic seal in aircraft landing gear (100) comprising: a strut (10); a rod (20) slidably mounted in the strut; and a bearing (70) fitted to an end (11) of the strut to guide the rod (20). The bearing includes a bushing (50) having a seal (62) arranged to rub against the rod (20) to provide sealing between the strut and the rod, defines a fluid chamber (2), and a stop nut (40) for preventing the bushing from moving relative to the strut. The method includes a step of installing a test nut (3) without a wiper seal in the place of the stop nut (40), the step of putting the hydraulic fluid in the landing gear under pressure, and the step of verifying the existence of a leak of hydraulic fluid on the outside surface (22) of the rod (20).Type: GrantFiled: July 1, 2015Date of Patent: February 7, 2017Assignee: MESSIER-BUGATTI-DOWTYInventor: Graeme Steel
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Patent number: 9527365Abstract: A vehicle height adjusting apparatus includes: an annular movable spring receiver in sliding contact with a guide surface formed on an outer periphery of an outer tube of a damper, the movable spring receiver being configured to support one side end of a suspension spring, the suspension spring biasing the damper in an expansion direction; a driving mechanism configured to drive the movable spring receiver in an axial direction of the damper; an auxiliary spring configured to bias the movable spring receiver to the suspension spring side; and a dust cover configured to cover a portion on the guide surface, the movable spring receiver being in sliding contact with the guide surface in the portion. The dust cover is held on the outer tube by means of a spring force of the auxiliary spring.Type: GrantFiled: December 4, 2013Date of Patent: December 27, 2016Assignee: KYB CorporationInventor: Takahisa Mochizuki
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Patent number: 8898899Abstract: Disclosed is a fluid encapsulating apparatus and method. The apparatus includes a fluid injection nozzle for injecting gas and oil into a tube of the shock absorber through a fluid injection aperture formed in the tube; a position securing mechanism supporting a seal unit of the shock absorber at a certain position in cooperation with a supporter provided to a piston rod of the shock absorber during oil injection; and a seal securing mechanism sealingly securing the seal unit after injection of the gas and oil. Shock absorbers manufactured thereby are also disclosed.Type: GrantFiled: February 17, 2011Date of Patent: December 2, 2014Assignee: Mando CorporationInventor: Hark Joo Kim
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Publication number: 20140345993Abstract: A vibrating member attachment structure includes: a sound insulation layer made of elastomer and including an accommodating portion that defines an accommodating space in which a vibrating member is accommodated, and a folded-back portion having a hem portion connecting to the accommodating portion, a contact portion placed so as to face the hem portion and contacting a mating member, a joint portion connecting the hem portion and the contact portion, and an insertion space defined by the hem portion, the contact portion, and the joint portion; a support member having higher rigidity than the sound insulation layer and including a sealing portion that seals an opening of the accommodating space, and an insertion portion that connects to the sealing portion and that is inserted in the insertion space; and an attachment member and including a shaft portion and a deformation suppressing portion.Type: ApplicationFiled: August 13, 2014Publication date: November 27, 2014Inventors: Koji TOMIYAMA, Akio YABU
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Patent number: 8800733Abstract: A guiding and sealing unit for a shock absorber rod including a bushing and a sealing assembly, integrally carried by an end of the bushing, and including a sealing ring made of elastomeric material having at least one annular sealing lip which radially and overhangingly protrudes towards a symmetry axis, and a metallic reinforcing structure, having a flange-shaped portion that abuts the end of the bushing and a sleeve-shaped portion operatively associated to the sealing lip; the sealing ring has a flange-shaped portion which radially extends from a root portion of the at least one annular lip, and an annular projection integrally formed with the flange-shaped portion, which axially and protrudingly extends from the latter, facing the piston and shaped to make, a limit stop element for the piston; the flange-shaped portion of the reinforcing structure is coupled to the flange-shaped portion and extends under the annular projection.Type: GrantFiled: August 5, 2011Date of Patent: August 12, 2014Assignee: Aktiebolaget SKFInventor: Roberto Pasino
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Publication number: 20140216872Abstract: A sealing device for sealing between a tube member and an axial member movably inserted into the tube member includes a dust seal held on an opening end part of the tube member and including an annular dust seal lip held in sliding contact with the outer peripheral surface of the axial member, and a scraper arranged at an inner side of the dust seal and including an annular lip portion slidably pressed into contact with the outer peripheral surface of the axial member. The hardness of the lip portion is set to be higher than that of the dust seal lip.Type: ApplicationFiled: October 17, 2012Publication date: August 7, 2014Inventors: Kiyoshi Kani, Minoru Honda, Makoto Suzuki, Naohide Takimoto
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Patent number: 8746423Abstract: A shock absorber has an inclined surface that is inclined to a moving direction of the free piston in at least one of a free piston contact surface of a free surface with which an elastic body is in contact and a housing contact surface of a housing with which the elastic body is in contact. A shortest distance between the free piston contact surface and the housing contact surface is changed by movement of the free piston.Type: GrantFiled: February 28, 2011Date of Patent: June 10, 2014Assignee: Hitachi Automotive Systems, Ltd.Inventors: Atsushi Maeda, Masaru Kouyama, Mikio Yamashita, Fumiyuki Yamaoka
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Patent number: 8689953Abstract: A gas spring assembly is used to control movement of a vehicle body panel relative to a vehicle body member. The gas spring assembly includes a rod and piston that are received within a tube or cylinder. A first rod end is coupled to the piston to move the piston back and forth within the cylinder. A second rod end is mounted to one of the vehicle body panel or the vehicle body member. The cylinder is mounted to the other of the vehicle body panel or the vehicle body member. The gas spring assembly includes a resilient cover that covers the rod and cylinder and extends from the second rod end to a distal cylinder end. The resilient cover extends and retracts with rod movement and is sealed at each end of the resilient cover to provide a completely sealed gas spring assembly.Type: GrantFiled: March 22, 2006Date of Patent: April 8, 2014Assignee: AVM IndustriesInventors: Walter Douglas Bauman, Benjamin Seth Adams, Mark M. Rose, Daniel J. Virga, Alton Dale Elvis, Hernan Dario Perin
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Patent number: 8561768Abstract: A damper for use in vehicle and automotive applications can include a structure for sealing a top portion of the damper such that standing water is prevented from residing adjacent the cylinder/tube, piston rod, gaskets, o-rings, grommets, or other structures located at a top portion of the damper. The structure for sealing the top portion of the damper can include a seal that is located between a rod guide and the damper tube such that water and debris are kept from entering an inner portion of the damper mechanism.Type: GrantFiled: August 31, 2007Date of Patent: October 22, 2013Assignee: Honda Motor Co., Ltd.Inventor: Lars David Moravy
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Patent number: 8544620Abstract: It is an object of the invention to improve utility in a suspension apparatus for a vehicle having an electromagnetic actuator and a hydraulic damper. In the suspension apparatus, a hydraulic damper is disposed between an electromagnetic actuator and a wheel-holding portion, and a cover tube is provided for accommodating a seal provided between a piston rod and a housing of the hydraulic damper. In the suspension apparatus according to the present invention wherein the hydraulic damper is disposed between the wheel-holding portion and the electromagnetic actuator, it is possible to effectively mitigate not only transmission of vibrations to the vehicle body from the wheel via the electromagnetic actuator but also transmission of vibrations to the electromagnetic actuator. Further, owing to the presence of the cover tube, entry of dust and the like into the hydraulic damper through the seal can be effectively prevented.Type: GrantFiled: November 10, 2005Date of Patent: October 1, 2013Assignees: Toyota Jidosha Kabushiki Kaisha, Kayaba Industry Co., Ltd.Inventors: Hirofumi Inoue, Takuhiro Kondo
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Patent number: 8499905Abstract: A front fork for easily optimizing an oil quantity in a damper cylinder with a relatively simple structure without affecting operability of a free piston even in an assembled state. An escape portion is formed on an outer periphery of a piston rod at a position where a seal member mounted on a sealing cap faces in an opposed manner when a front fork extends to the maximum.Type: GrantFiled: January 26, 2010Date of Patent: August 6, 2013Assignee: Honda Motor Co., Ltd.Inventors: Mikio Uchiyama, Kazuhiko Gogo
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Patent number: 8490763Abstract: A delay return gas spring including a piston at least partially received in a cylinder for reciprocation between extended and compressed positions over a cycle including a compression stroke and a return stroke. A seal disposed between the cylinder and the piston separates a primary chamber on one side of the seal from a secondary chamber on another side of the seal during a portion of the cycle. A passage communicates with the secondary chamber and with the primary chamber. The seal is relatively movable between an open position permitting free flow of gas through the passage to a closed position at least partially restricting gas flow through the passage so as to permit gas in the secondary chamber to be compressed in response to movement of the piston toward its extended position, thereby reducing a net return force on the piston and decreasing a velocity of the piston.Type: GrantFiled: March 10, 2009Date of Patent: July 23, 2013Assignee: DADCO, Inc.Inventor: Jason L. Vandine
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Patent number: 8424657Abstract: A cylinder assembly includes a piston rod connected to a piston which is movably received in a cylinder and the interior of the cylinder is defined into a first room and a second room by the piston. A first groove and a second groove are respectively defined in the inside and the outside of the piston, and the two grooves are longitudinally aligned with each other. Two seal rings are respectively engaged with the first and second grooves. The first groove includes a first inner surface and the second groove includes a second inner surface. A distance is defined between two respective extension lines of the first and second grooves. Each of the two respective extension lines is defined by extending a line from the first/second inner surface of the first/second groove. The outer diameter of the piston is reduced for being used with a smaller cylinder.Type: GrantFiled: December 27, 2010Date of Patent: April 23, 2013Inventor: Jung Yu Hsu
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Patent number: 8342488Abstract: An improvement to damping cylinders in which the damping fluid needs to be separated from a gas is disclosed. In particular, an annular bladder is used. An annular bladder allows for a control shaft to extend at least a portion of the length of the damping cylinder. This configuration effectively and simply reduces most issues that result from when an IFP is used for the same purpose.Type: GrantFiled: September 17, 2010Date of Patent: January 1, 2013Assignee: Fox Factory, Inc.Inventor: William M. Becker
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Patent number: 8256589Abstract: A suspension strut with an elastomer block for a wheel of a vehicle, in particular, for a wheel of a motorcycle is provided. The spring constant of the elastomer block, which interacts with an additional spring element, can be changed by introducing a control sleeve between the elastomer block and the body of the suspension strut. The elastomer block further is effectively disengaged from the additional spring element when the control sleeve is in a lower end position, so that the spring rate is determined only by the additional spring element.Type: GrantFiled: April 6, 2010Date of Patent: September 4, 2012Assignee: Bayerische Motoren Werke AktiengesellschaftInventor: Josef Seidl
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Patent number: 8240440Abstract: Apparatus for lifting a hatch which can pivot around a pivot axis, especially a hatch of a motor vehicle, by means of a piston-cylinder unit. The piston-cylinder unit has a closed cylinder filled with a pressurized fluid, the interior of the cylinder 6 being divided by a piston into a first working chamber and a second working chamber. A piston rod passes through the second working chamber and is guided to the outside through a seal at the end of the cylinder and then hinged to the hatch, whereas the other end of the cylinder is hinged to a stationary component. A through-opening leading from the first working chamber to the second working chamber, is provided in the piston. The through-opening can be opened by an electrically actuated valve.Type: GrantFiled: May 14, 2007Date of Patent: August 14, 2012Assignee: Stabilus GmbHInventors: Rainer Massmann, Rolf Mintgen, Kathrin Peifer, Moritz Starkmeth, Udo Wendland
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Patent number: 8225914Abstract: A shock absorbing device may include a first stem having an inner surface extending along a longitudinal axis, and a second stem configured to receive a portion of the first stem. The shock absorbing device may also include a guide member having an outer surface configured to prevent the first stem from rotating relative to the guide member. The shock absorbing device may further include a shock absorbing structure disposed between the first stem and the second stem. The shock absorbing device may further include a bearing device configured to rotatably guide movement of the first stem relative to the second stem along a direction substantially parallel to the longitudinal axis of the first stem and prevent radial sway between the first and second stems.Type: GrantFiled: January 25, 2007Date of Patent: July 24, 2012Assignee: Giant Manufacturing Co., Ltd.Inventor: Johnson Yih
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Patent number: 8215463Abstract: A variable damping-force damper includes a cylinder tube filled with magnetic particles (MRF), a piston that is slidably disposed within the cylinder tube, a piston rod connected with the piston and is disposed so as to protrude out of one end of the cylinder tube and a rod guide that closes one end of the cylinder tube and slidably supports the piston rod. The cylinder tube has a Ni plating film whose Vickers hardness is 800 VHN or more on its inner peripheral surface and the piston slides relative to the Ni plating film. The rod guide has a structure having a predetermined base material portion and a fluorine resin contained Ni plating film that is treated by heat and is provided on the surface of the base material portion. The piston rod slides relative to the fluorine resin contained Ni plating film.Type: GrantFiled: February 9, 2009Date of Patent: July 10, 2012Assignee: Honda Motor Co., Ltd.Inventors: Yohei Kondo, Hidetoshi Amano, Shinji Yamashita, Hajime Kajiwara, Hiroshi Ogasa, Yoshitomo Azekatsu
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Patent number: 8186489Abstract: 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: GrantFiled: August 14, 2009Date of Patent: May 29, 2012Inventors: Günther Zimmer, Martin Zimmer
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Publication number: 20120119454Abstract: An active suspension system for a vehicle including at least one fluid operated ram having a cylinder and a main piston mounted therein for reciprocating movement, control means for controlling an equilibrium position of the piston in the ram in response to lateral acceleration of the vehicle in order to counter the effects of body roll of the vehicle, and wherein the ram includes shock absorbing means for permitting rapid movement of the piston from the equilibrium position when operating fluid in the ram is subjected to transient increases in pressure.Type: ApplicationFiled: February 16, 2010Publication date: May 17, 2012Inventor: Phillip Di Maria
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Patent number: 8127902Abstract: A sealing assembly including a sealing ring made of elastomeric material and having, integrally in one piece, at least one elastically deformable, annular sealing lip, at least part of which projects axially from and radially inwards of the sealing ring, from a respective root portion adjacent to a first axial end of the sealing ring, and towards a second axial end, opposite the first, of the sealing ring; and an annular reinforcing structure made of material which is elastically deformable but relatively much more rigid than the elastomeric material of the sealing ring and relative lip, and at least partly embedded in the sealing ring; wherein the reinforcing structure extends at least partly in an axial direction, at least partly alongside but on the opposite side to the sealing lip; the sealing lip being designed to define, when undeformed, a predetermined radial clearance between itself and a radially inner lateral wall of the sealing ring.Type: GrantFiled: December 26, 2007Date of Patent: March 6, 2012Assignee: Aktiebolaget KSFInventor: Roberto Pasino
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Patent number: 8047340Abstract: In a suspension spring adjusting apparatus of a hydraulic shock absorber, a mounting mating surface sealed by a spring adjusting case and a seal material of a case cover is formed in a flat surface shape, and an outer peripheral edge of the case cover is provided with a skirt portion covering over an outer peripheral surface of the spring adjusting case via a gap.Type: GrantFiled: June 15, 2006Date of Patent: November 1, 2011Assignee: Showa CorporationInventor: Shigenobu Abe
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Publication number: 20110198173Abstract: Disclosed is a fluid encapsulating apparatus and method. The apparatus includes a fluid injection nozzle for injecting gas and oil into a tube of the shock absorber through a fluid injection aperture formed in the tube; a position securing mechanism supporting a seal unit of the shock absorber at a certain position in cooperation with a supporter provided to a piston rod of the shock absorber during oil injection; and a seal securing mechanism sealingly securing the seal unit after injection of the gas and oil. Shock absorbers manufactured thereby are also disclosed.Type: ApplicationFiled: February 17, 2011Publication date: August 18, 2011Inventor: Hark Joo Kim
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Patent number: 7963529Abstract: An actuator includes a first rotary motor, a second rotary motor, and a transmission coupled to the first and second rotary motors. The transmission converts rotation of the first rotary motor in a first direction and simultaneous rotation of the second rotary motor in a second direction to linear motion of an output shaft in a single direction. The actuator is usable in an active automobile suspension.Type: GrantFiled: September 8, 2008Date of Patent: June 21, 2011Assignee: Bose CorporationInventors: David G. Oteman, Steven N. Brown, Dariusz A. Bushko
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Patent number: 7921974Abstract: An improvement to damping cylinders in which the damping fluid needs to be separated from a gas is disclosed. In particular, an annular bladder is used. An annular bladder allows for a control shaft to extends at least a portion of the length of the damping cylinder. This configuration effectively and simply reduces most issues that result from when an IFP is used for the same purpose.Type: GrantFiled: November 29, 2005Date of Patent: April 12, 2011Assignee: Fox Factory, Inc.Inventor: William H Becker
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Patent number: 7896142Abstract: A shock absorber includes a dynamic vibration absorber which is designed to suppress the vibrations of the piston rod of the shock absorber. The dynamic vibration absorber includes a damping mass which is formed as a dirt shield to protect the shock absorber from contaminants.Type: GrantFiled: March 15, 2007Date of Patent: March 1, 2011Assignee: Tenneco Automotive Operating Company Inc.Inventor: Gert Vanhees
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Publication number: 20110024248Abstract: In a piston seal element and a deceleration structure including a piston seal element which has a deformation area delimited in the longitudinal direction of the seal element by frontal face areas and a sleeve surface area with at least one channel extending between the two frontal face areas, the channel extends screw thread-like around the seal element between the frontal face areas thereof.Type: ApplicationFiled: August 18, 2010Publication date: February 3, 2011Inventors: Günther Zimmer, Martin Zimmer
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Patent number: 7793971Abstract: In a strut type shock absorber (1), a lower cap (2) is welded onto an inner circumferential surface of an outer shell (3) at a step (16) formed in a retreated position from an axial tip of the outer shell (3). The axial tip of the outer shell (3) is welded onto the inner circumferential surface of a knuckle bracket (6) which holds the outer shell (3). Since welding of the lower cap (2) onto the outer shell (3) and welding of the knuckle bracket (6) onto the outer shell (3) are conducted at different positions, the lower cap (2) is welded onto the outer shell (3) without suffering from blowholes irrespective of the material forming the knuckle bracket (6), and as a result, a weld bead (17) having a high degree of air-tightness is formed.Type: GrantFiled: April 11, 2007Date of Patent: September 14, 2010Assignee: Kayaba Industry Co., Ltd.Inventors: Taku Sakashita, Masaru Fukushima, Masahiro Miwa
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Publication number: 20100187060Abstract: A suspension strut with an elastomer block for a wheel of a vehicle, in particular, for a wheel of a motorcycle is provided. The spring constant of the elastomer block, which interacts with an additional spring element, can be changed by introducing a control sleeve between the elastomer block and the body of the suspension strut. The elastomer block further is effectively disengaged from the additional spring element when the control sleeve is in a lower end position, so that the spring rate is determined only by the additional spring element.Type: ApplicationFiled: April 6, 2010Publication date: July 29, 2010Applicant: Bayerische Motoren Werke AktiengesellschaftInventor: Josef Seidl
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Patent number: 7621382Abstract: A dampening mechanism is described having a pressure tube defining a working chamber between a rod guide proximate a first end and an end cap proximate a second end. A piston is disposed within the pressure tube and divides the working chamber into an upper working chamber and a lower working chamber. A piston rod is secured to the piston. A reservoir tube surrounds the pressure tube defining a reservoir chamber between the reservoir tube and the pressure tube. At least one passage is disposed through the pressure tube between the reservoir chamber and the working chamber and a bypass valve is disposed between the piston and the at least one passage.Type: GrantFiled: June 28, 2006Date of Patent: November 24, 2009Assignee: Nissan Technical Center North America, Inc.Inventor: David T. Zdeb
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Publication number: 20080251332Abstract: A device for mitigating shock loads utilizes load-fitted and form-fitted fluid capsules. Each capsule includes a pair of substantially flat end caps. Further, the end caps are parallel and are centered on a common axis. In each fluid capsule, high-tension members interconnect the two end caps to limit the axial distance between the end caps to less than a predetermined value. For each capsule, a membrane interconnects the peripheries of the end caps to enclose the fluid capsule between the end caps. Also, each fluid capsule includes a valve through the membrane to allow fluid flow between fluid capsules when a pressure on the valve exceeds a predetermined level. When a force is applied against a fluid capsule, the membrane deforms before fluid flows from the capsule to mitigate shock loading.Type: ApplicationFiled: April 11, 2008Publication date: October 16, 2008Inventors: James H. Stuhmiller, Philemon Chan
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Publication number: 20080185247Abstract: There is provided a sealing structure for hermetically sealing a gap between a base valve and an internal cylinder in a self leveling damper, which includes internal and external cylinders, a piston valve and a piston rod provided in the internal cylinder, and a base valve provided in a distal end of the internal cylinder, to absorb vibration transmitted from a road to an axle when a vehicle is driven, wherein a quadrangular-sectioned O-ring is inserted into a circular groove formed on a body of the base valve to hermetically seal the gap between the base valve and the internal cylinder.Type: ApplicationFiled: February 4, 2008Publication date: August 7, 2008Applicant: MANDO CORPORATIONInventor: Tae Ju Kim
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Publication number: 20070267259Abstract: A golf car shock absorber mount assembly includes a tubular sleeve connected to a shock absorber. A shock absorber mount bracket is fixed to a frame structure of the vehicle and engages a first end of the tubular sleeve. A bushing assembly within the tubular sleeve includes an elastomeric bushing having an outside cylindrical surface contacting a tubular sleeve inner cylindrical surface and an inner bore defining a cylindrical wall. A rigid tubular member includes a cylindrical body portion having a body outside surface and a washer portion positioned proximate to and extending radially outward with respect to the cylindrical body portion. The body outside surface and the cylindrical wall are bonded. The assembly permits a shock-absorber load and at least two non-load directional axes of motion between the tubular sleeve and the tubular member.Type: ApplicationFiled: May 19, 2006Publication date: November 22, 2007Applicant: Textron Inc.Inventors: Christopher K. Furman, Landon Ball
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Publication number: 20070187199Abstract: A gas spring (1) comprises a piston rod (4) projecting from an open end of a cylinder (2) so as to be able to elongate and contract axially, and a dust seal (10) which is in contact with the piston rod (4) to prevent dust from invading the cylinder (2). By fitting a seal protecting member (21) to the open end of the cylinder (2) to shield the dust seal (10) from exposure to the outside of the cylinder (2), protection of the dust seal (10) from deterioration and damage is enhanced.Type: ApplicationFiled: January 8, 2007Publication date: August 16, 2007Applicant: KAYABA INDUSTRY CO., LTD.Inventors: Takashi Asa, Hiroshi Murota, Yasushi Saitou
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Patent number: 7226045Abstract: A vehicle suspension system has a combination air spring/damper mounted between spaced first and second components of a vehicle. The damper has a fluid cylinder attached to the first vehicle component and a piston rod connected to the second vehicle component. The air spring has a piston and an end plate with an intervening flexible bellows forming an air chamber. The air spring piston is mounted on and surrounds the damper cylinder and the end plate is secured to the second vehicle component, but at a separate location from the attachment of the piston rod to distribute the loading forces at the points of attachment. A flexible sealing sleeve extends between the piston rod and an end plate opening of the air spring through which the piston rod extends. A rigid canister is mounted on the end plate of the air spring and extends about the flexible bellows and has a sealing skirt at a lower end which engages the damper cylinder.Type: GrantFiled: September 12, 2005Date of Patent: June 5, 2007Assignee: BFS Diversified Products, LLCInventor: Graham R. Brookes
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Patent number: 7204104Abstract: A damper includes: a cylinder: a piston rod inserted to be movable linearly in the cylinder; a guide member provided with a coupling hole to which an insertion portion of the rod member is coupled at a center thereof, and provided with first and second grooves at an outer circumferential surface thereof; a fixed damping member fitted into the first groove and adhered to an inner surface of the cylinder; and a movable damping member up and down movably fitted into the second groove and selectively adhered to the inner surface of the cylinder.Type: GrantFiled: January 12, 2004Date of Patent: April 17, 2007Assignee: LG Electronics Inc.Inventors: Young-Ho Kim, Joon-Woo Kim, Dong-Won Kim, Seung-Chul Park, Si -Moon Jeon, Gwan-Ryong Park
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Patent number: 7011301Abstract: A wheel-guiding forward axle spring strut includes a spring and a shock absorber (6) integrated axially therein. The spring includes two end members (8, 10) and a spring element is disposed between these end members. The shock absorber (6) includes a shock absorber cylinder (20) and a shock absorber rod (18) connected to the chassis (24) via a non-rotatable shock absorber bearing (22) The end member (8) is connected by a rotational bearing (28) to the chassis. The lower spring end member (10) is fixedly connected to the shock absorber cylinder (20) and thereby in common to the forward axle. The upper spring end member is an air spring cover and the lower spring end member is an air spring piston (10) and an air spring flexible member (12) is mounted between the cover (8) and the piston (10) so as to be pressure-tight and tension-tight.Type: GrantFiled: May 10, 2004Date of Patent: March 14, 2006Assignee: Continental AktiengesellschaftInventor: Holger Oldenettel
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Patent number: 6968931Abstract: The present invention relates to an improved shock absorber with guiding system for, for example, racing and Formula cars and such, due to which larger horizontal bend powers F can be taken without considerable wear and further problems, in which the shock absorber consists of a telescopic first or upper tube (15) and second or bottom tube (16) with a damping, for oil bored piston (17), in which the sliding into each other of the mentioned tube parts is executed by means of roller bearings (22, 23), which are adjusted to the radius of the concerned tube, through which in a surprisingly inventive way a very high-quality spring and shock absorber is created for the Formula cars.Type: GrantFiled: May 22, 2002Date of Patent: November 29, 2005Inventor: Marius Jacobus Huisman
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Publication number: 20040231935Abstract: A piston rod and a piston are installed with freedom of axial movement in a cylinder filled with a working medium, the piston dividing the working space into a space on the piston-rod side of the piston and a space on the side of the piston facing away from the piston rod. A stop disk is mounted on the piston rod in addition to the piston rests against retaining means provided on the cylinder to limit the outward movement of the piston rod during a fire.Type: ApplicationFiled: April 8, 2004Publication date: November 25, 2004Applicant: ZF Sachs AGInventors: Hassan Asadi, Peter Wirth, Gerald Fenn, Bjorn Neumann
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Publication number: 20040206590Abstract: A vehicle shock absorber is provided that includes a piston rod. A cylinder head having a bore defining an axis supports the rod within the bore. A scraper is arranged proximate to the cylinder head and includes a hole with the rod arranged within the hole. The scraper removes debris from a portion of the rod exterior of the scraper opposite the cylinder head. Preferably, the scraper is axially located and retained relative to the cylinder head by a retainer. A wiper is at least partially disposed in the hole of the scraper and is in engagement with the rod. The wiper removes water from the rod preventing penetration of the water past the wiper.Type: ApplicationFiled: April 17, 2003Publication date: October 21, 2004Inventors: Julian Harbu, Simon Van Wonderen
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Patent number: 6789652Abstract: A resilient leg as part of an attachment for the wheel of a motor vehicle. The leg is provided with a piston rod (4) that has a piston (5) attached to it, that travels into and out of a housing (1), that is attached at its outer end to the vehicle's chassis, and that is maintained in radial alignment by two separated bearings. The piston divides the interior of the housing into two fluid-charged chambers (9 & 10). The object is to ensure satisfactory transmission of moments of force from the piston rod to the housing in a leg that is light in weight. The piston rod accordingly extends through, and is maintained in radial alignment at, both ends of the leg.Type: GrantFiled: February 3, 2003Date of Patent: September 14, 2004Assignee: ThyssenKrupp Bilstein GmbHInventors: Michael Hönig, Walter Wirtz, Marcello Di Fina, Klaus Hofmann, Günter Poetsch
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Publication number: 20040163908Abstract: In a mounting structure of a dust cover in a hydraulic shock absorber, a portion continuously provided in an end portion of a portion forming a tubular portion in a metal pipe material of the dust cover is diameter-reduced to an inner diameter side, and an annular diameter-reduced portion including wall portions at both sides is formed. A flange portion obtained by crimping and folding the wall portions at both sides of the diameter-reduced portion in an axial direction according to a press working is formed so as to be continuously provided in an inner diameter side of one end of the tubular portion, and the flange portion is clamped between a mounting bracket and a support member.Type: ApplicationFiled: April 11, 2003Publication date: August 26, 2004Inventor: Kazuo Wada
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Publication number: 20040134731Abstract: A motor vehicle strut and a rod guide assembly for the same. The strut includes a body, a rod slidable within the body, and a guide assembly. The guide assembly includes a housing assembly with a compliant member positioned adjacent a sleeve. An aperture is formed within the housing assembly. A bearing receives the rod, is positioned substantially within the aperture, and engages the sleeve. At least one seal is positioned substantially within the aperture. A seal cover and a retainer are operably attached to the housing assembly. Lateral movement of the rod causes deformation of the compliant member.Type: ApplicationFiled: January 9, 2003Publication date: July 15, 2004Applicant: DELPHI TECHNOLOGIES INC.Inventors: Piotr A. Kos, Saiman Lun
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Publication number: 20040060788Abstract: A vibration damper includes a damping element and a pneumatic spring, where the damping element has a container tube, a fastening part, and a piston rod, and where the pneumatic spring consists of a spring bellows acting as a roll bellows, an outer tube connected to the mass whose vibrations are to be minimized, and a roll-over tube carrying a roll-over profile. The spring bellows forms one boundary of an elastic space filled with a pressurized gas, whereas the roll-over tube seals off the gas space from the container tube and is attached thereto. A stamped and formed support ring, which supports the roll-over tube on the container tube and serves to suppress tilting movements, is installed between the container tube and the roll-over tube.Type: ApplicationFiled: September 23, 2003Publication date: April 1, 2004Applicant: ZF Sachs AGInventors: Bernd Klitsch, Stefan Brehm, Michael Muller
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Publication number: 20040026196Abstract: The present invention relates to an improved shock absorber with guiding system for, for example, racing and Formula cars and such, due to which larger horizontal bend powers F can be taken without considerable wear and further problems, in which the shock absorber consists of a telescopic first or upper tube (15) and second or bottom tube. (16) with a damping, for oil bored piston (17), in which the sliding into each other of the mentioned tube parts is executed by means of roller bearings (22, 23), which are adjusted to the radius of the concerned tube, through which in a surprisingly inventive way a very high-quality spring and shock absorber is created for the Formula cars.Type: ApplicationFiled: June 3, 2003Publication date: February 12, 2004Inventor: Marius Jacobus Huisman