Linear Bearing Patents (Class 29/898.03)
  • Patent number: 10344909
    Abstract: A metal extrusion plate for a display stand and the display stand are provided. The metal extrusion plate extends along a first direction and comprises N of flat plate sections and N?1 of connecting sections, wherein the flat plate sections are integrally formed with the connecting sections, and N is a positive integer greater than 1. The flat plate sections are interlaced with the connecting sections, and each of the connecting sections is connected to the two adjacent flat plate sections therebetween. Each of the connecting sections has a groove extending along a second direction being perpendicular to the first direction and forming a first incline and a second incline opposite to the first incline. The metal extrusion plate is capable of being bent at the connecting section so that the two adjacent flat plate sections form a first included angle. The metal extrusion plate is bent to form as a supporting frame to be disposed on a base.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: July 9, 2019
    Assignee: SYNCMOLD ENTERPRISE CORP.
    Inventor: Ching-Hui Yen
  • Patent number: 9793785
    Abstract: A linear motor includes a stator and a mover coupled to the stator. The stator includes a stator body and at least one guiding portion protruding from the stator body. The mover includes a mover body and at least one sliding portion protruding from the mover body. The at least one sliding portion defines a receiving groove. The at least one guiding portion is received in the receiving groove. A gap is defined between the at least one guiding portion and the at least one sliding portion. The mover defines at least one air inlet hole communicating with the gap and configured to inject air into the gap.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: October 17, 2017
    Assignee: ScienBiziP Consulting(Shenzhen)Co.,Ltd.
    Inventors: Mi-Chien Chen, Chi-Huan Shao
  • Patent number: 9765814
    Abstract: There are provided: a linear motion guide device, which enhances workability of raceway surfaces and is capable of reducing production cost; and a production method for the linear motion guide device. For this purpose, a linear motion guide device includes a guide rail (1), a slider (2), and a plurality of rolling elements (4), and the guide rail (1) and the slider (2) individually have raceway surfaces (11, 21), which form a rolling path (3) of the rolling elements (4), at positions opposite to each other. Then, the rolling elements (4) are disposed in the rolling path (3), and the slider (2) moves with respect to the guide rail (1) via the rolling elements (4).
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: September 19, 2017
    Assignee: NSK Ltd.
    Inventor: Jun Matsumoto
  • Patent number: 8998490
    Abstract: A linear motion bearing assembly comprising a rolling element retainer structure and an outer housing sleeve enclosing substantially all of an exposed exterior surface of said rolling element retainer structure. A bearing block effective to enclose substantially all of an exposed exterior surface of the outer housing sleeve, the bearing block including a first bearing block segment effective to enclose a first part of the outer housing sleeve; and a second bearing block segment effective to enclose a second part of the outer housing sleeve, wherein the first bearing block segment and the second bearing block segment include first elements and second elements effective to interlock with each other when the bearing block encloses the outer housing sleeve.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: April 7, 2015
    Assignee: Thomson Industries, Inc.
    Inventors: Alison Ng, Ryan Thomas
  • Publication number: 20150003759
    Abstract: A double parallelogram linear flexural system and method includes a first stage extending in a direction of movement, and a pair of parallelogram flexures extending from the first stage to distal ends configured for being grounded. A second stage extends parallel to the first stage, with another pair of parallelogram flexures extending between the stages, wherein the stages and parallelogram flexures form a double parallelogram. A linkage is disposed between, and resiliently coupled to, the stages. Linkage guiding flexures extend divergently from the linkage, to distal end portions configured for being grounded. The linkage guiding flexures define a notional triangle having a base extending between the distal end portions, and sides extending through proximal end portions to a notional apex defining a center of rotation for the linkage. The linkage is entirely within the double parallelogram, while constraining the stages to oscillate at the same frequency and phase.
    Type: Application
    Filed: June 28, 2013
    Publication date: January 1, 2015
    Inventor: Robert M. Panas
  • Patent number: 8881520
    Abstract: A roller bearing sub-assembly can include a first mounting portion, a second mounting portion spaced apart from the first mounting portion, a first roller disposed between the first and second mounting portions and straps wrapped partially around different portions of the first roller. The first mounting portion, second mounting portion, first roller and straps are configured such that the first and second mounting portions are moveable relative to each other along a selected direction for a distance that is approximately equal to a circumference of the first roller in opposite directions from a mid-stroke position. Linear roller bearing assemblies and methods of forming linear roller bearing assemblies are also disclosed, as are multi-cylinder Stirling engines and a thermal energy recovery system.
    Type: Grant
    Filed: June 13, 2012
    Date of Patent: November 11, 2014
    Inventor: S. Grant Emigh
  • Patent number: 8821020
    Abstract: The motion guide device has a raceway rail having a rolling-element rolling part; a moving block having a loaded rolling-element rolling part facing the rolling-element rolling part and a rolling-element circulation passage including a rolling-element return passage extending approximately in parallel with the loaded rolling-element rolling part; and a plurality of rolling elements arranged in the rolling-element circulation passage. The moving block has a rolling part made of steel and having the loaded rolling-element rolling part, a mounting part connected to the rolling part, having a mounting surface for mounting the moving block onto a counterpart device and having a specific gravity lower than that of the rolling part, and a return part made of resin and having the rolling-element return passage.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: September 2, 2014
    Assignee: THK Co., Ltd.
    Inventors: Tomoyuki Aida, Ayako Misawa
  • Patent number: 8745873
    Abstract: An improved method for manufacturing the slider of a linear sliding rail includes employing a forged one-piece billet of the slider, providing an inner forming mold inwardly made into the actual shape of the slider to be molded, utilizing metal rigidity and extensibility of the billet, placing the billet onto the inner forming mold, employing a punching machine to axially drive the billet into the inner mold with the actual shape of the slider, subjecting the billet in the inner forming mold to a powerful press, extending and molding the billet according to the lines and the rail shapes of the slider, further providing an inner shaping mold located in a shaping mold, whose shape is the same as that of the above molded slider but whose size is slightly smaller than that of the molded slider, then driving the molded slider into the inner shaping mold by the punching machine and ejected it from the lower end of the inner shaping mold to complete a finished slider with a completely smooth surface, in order to ach
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: June 10, 2014
    Inventor: Lei-Jui Wu
  • Patent number: 8662752
    Abstract: A motion guide device has a moving block mounting surface 501 of an end plate 5 formed in a planar shape and a thinned-down portion 52 formed in an opposing moving block mounting surface 502. Moreover, in this motion guide device, a lubrication path 30 includes: a first lubrication path 30a formed extending in a horizontal direction from a surface of side surfaces parallel to a longer direction of a track rail 1 in the end plate 5 to a central portion of the end plate 5; a second lubrication path 30b formed in the central portion of the end plate 5; and a third lubrication path 30c connected to the second lubrication path and formed in a groove shape in the moving block mounting surface 501 of the end plate 5, and, moreover, the first lubrication path 30a is formed in a hollow shape continuous to inside a built-up portion 52a appended to the thinned-down portion 52 of the end plate 5.
    Type: Grant
    Filed: January 6, 2011
    Date of Patent: March 4, 2014
    Assignee: THK Co., Ltd.
    Inventors: Nobuyuki Maki, Fukuji Nakano, Shigemi Nakamura
  • Publication number: 20130318795
    Abstract: In a method for producing a plain bearing, an aluminium-iron-silicon alloy is rolled onto a steel backing, wherein the ratio of iron to silicon is between 2:1 and 4:1. A plain bearing has a sliding surface of such an aluminium-iron-silicon alloy.
    Type: Application
    Filed: October 27, 2011
    Publication date: December 5, 2013
    Inventors: Holger Schmitt, Daniel Meister, Gerd Andler, Fabio Gaetano Cosentino
  • Publication number: 20130216163
    Abstract: A linear motion bearing assembly comprising a ball retainer structure having at least a portion of a plurality of open axial ball tracks formed therein. The ball tracks include an open load bearing portion, an open return portion and turnarounds interconnecting the load bearing and return portions. A plurality of bearing balls are disposed in the ball tracks. A plurality of load bearing plates are axially positioned adjacent the ball retainer structure for receiving load from the balls disposed in the load bearing portion of the ball tracks. A bearing plate to housing intermediary load structure comprises a plurality of pieces and defines at least two spaces in between the pieces. The bearing plate to housing intermediary load structure extends circumferentially around the ball retaining structure. An inner arc of the pieces have a radius of curvature corresponding to a radius of curvature of the ball retainer structure.
    Type: Application
    Filed: July 15, 2011
    Publication date: August 22, 2013
    Inventor: Alison Ng
  • Publication number: 20130209008
    Abstract: A linear motion bearing assembly comprising a ball retainer structure having at least a portion of a plurality of open axial ball tracks formed therein. The ball tracks including an open load bearing portion, an open return portion and turnarounds interconnecting the load bearing and return portions. A plurality of bearing balls are disposed in the ball tracks. A plurality of load bearing plates are axially positioned adjacent the ball retainer structure for receiving load from the balls disposed in the load bearing portion of the ball tracks. A first outer housing sleeve is effective to hold the ball retainer structure. The first outer housing sleeve includes a first interlock structure. A second outer housing sleeve is effective to hold the ball retainer structure, the second outer housing sleeve including a second interlock structure. The first interlock structure is effective to mate with the second interlock structure.
    Type: Application
    Filed: July 15, 2011
    Publication date: August 15, 2013
    Inventor: Alison Ng
  • Publication number: 20130209007
    Abstract: A linear bearing assembly including a linear bearing plate, a base plate to support the linear bearing plate within a machine, a sealing structure to seal a volume defined between the linear bearing plate and the base plate, and a fluid adapted to be injected into the volume via at least one injection port. The fluid is injected at a sufficient pressure so as to alter an orientation of the linear bearing plate or the base plate toward an initial geometric orientation.
    Type: Application
    Filed: July 26, 2011
    Publication date: August 15, 2013
    Inventor: Jochen Corts
  • Publication number: 20130209009
    Abstract: A linear motion bearing assembly comprising a rolling element retainer structure and an outer housing sleeve enclosing substantially all of an exposed exterior surface of said rolling element retainer structure. A bearing block effective to enclose substantially all of an exposed exterior surface of the outer housing sleeve, the bearing block including a first bearing block segment effective to enclose a first part of the outer housing sleeve; and a second bearing block segment effective to enclose a second part of the outer housing sleeve, wherein the first bearing block segment and the second bearing block segment include first elements and second elements effective to interlock with each other when the bearing block encloses the outer housing sleeve.
    Type: Application
    Filed: August 10, 2011
    Publication date: August 15, 2013
    Inventors: Alison Ng, Ryan Thomas
  • Patent number: 8460116
    Abstract: A slip joint comprising, a female portion comprised of four axially extending segments. The segments together create an outer perimeter. Each of the combined segments together form an inner surface of the female portion and each has its own ball tracks extending substantially the length of the female portion. A unitary male portion has an outer surface defined by a plurality of axially extending ball tracks. A unitary cage is located radially outward from the male portion and radially inward from the female portion. The cage has a plurality of ball apertures with balls located in the ball apertures. The balls are in contact with both the ball tracks in the male and female portions for selective movement of the male portion with respect to the female portion. A tube member is in direct radial outer contact substantially entirely along the outer perimeter of the female portion.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: June 11, 2013
    Assignee: Dana Automotive Systems Group, LLC
    Inventor: Johnny N Smith
  • Publication number: 20130129265
    Abstract: A method of producing a fitting for domestic appliances or furniture. The fitting including a plurality of components connected to one another. The method includes the steps of providing the plurality of components by one or more of stamping and bending metal sheets, assembling the plurality of components to form a fitting, coating the fitting, at least in sections, by applying at least one coating, one or both of drying and burning-in the coating, treating a surface of plurality of components abrasively before the coating of the fitting, thereby setting a surface roughness of the plurality of components, and cleaning the surface of the plurality of components.
    Type: Application
    Filed: April 1, 2011
    Publication date: May 23, 2013
    Applicant: PAUL HETTICH GMBH & CO. KG
    Inventors: Peter Jährling, Daniel Rehage, Kathrin Urban, Lars Schrubke, Arthur Krause, Friedrich Meyer, Andre Eckholt
  • Publication number: 20130084031
    Abstract: A sliding element, and in particular a piston ring, is provided with a DLC coating on a substrate of the sliding element. A material softer than DLC is embedded into the surface of the DLC coating with which the sliding element will come into contact with a sliding partner, against which the sliding element will slide.
    Type: Application
    Filed: July 3, 2012
    Publication date: April 4, 2013
    Inventors: Marcus Kennedy, Michael Zinnabold
  • Publication number: 20130062899
    Abstract: A slide mechanism for use with a vehicle armrest includes a sliding plate and a stationary plate in sliding engagement with each other via a coupling that includes an elongated guide and a guide follower. The elongated guide defines a slide direction for the slide mechanism and is retained to one of the plates by guide retention features located at each end of the guide. Each retention feature is constructed to restrict movement of the elongated guide in all directions transverse to the slide direction. A spacer is disposed at one end of the elongated guide to hold the guide in place in the slide direction so that retention is maintained. The spacer can be interposed between a retention feature stop and an end of the elongated guide and/or can extend from a cover attached to the plate that includes the retention features.
    Type: Application
    Filed: September 13, 2011
    Publication date: March 14, 2013
    Applicant: FAURECIA INTERIOR SYSTEMS, INC.
    Inventor: Jonathon Stoia
  • Patent number: 8375587
    Abstract: A method includes providing a journal bearing blank that includes an axis, an inner surface disposed at an inner diameter, an outer surface disposed at an outer diameter, a first axial surface, a second, opposing axial surface, and a lubricant opening that extends between the inner surface and the outer surface; along the inner surface, milling a well that spans an azimuthal angle about the axis, milling an arm that spans an azimuthal angle about the axis and that extends from the well to the first axial surface of the journal bearing, and milling an opposing arm that spans an azimuthal angle about the axis and that extends from the well to the second axial surface of the journal bearing; and inserting the journal bearing in a bore of a turbocharger center housing. Various other devices, systems, methods, etc., are also disclosed.
    Type: Grant
    Filed: November 26, 2011
    Date of Patent: February 19, 2013
    Assignee: Honeywell International Inc.
    Inventor: Daniel A Gutknecht
  • Publication number: 20120328221
    Abstract: A motion guide device has a moving block mounting surface 501 of an end plate 5 formed in a planar shape and a thinned-down portion 52 formed in an opposing moving block mounting surface 502. Moreover, in this motion guide device, a lubrication path 30 includes: a first lubrication path 30a formed extending in a horizontal direction from a surface of side surfaces parallel to a longer direction of a track rail 1 in the end plate 5 to a central portion of the end plate 5; a second lubrication path 30b formed in the central portion of the end plate 5; and a third lubrication path 30c connected to the second lubrication path and formed in a groove shape in the moving block mounting surface 501 of the end plate 5, and, moreover, the first lubrication path 30a is formed in a hollow shape continuous to inside a built-up portion 52a appended to the thinned-down portion 52 of the end plate 5.
    Type: Application
    Filed: January 6, 2011
    Publication date: December 27, 2012
    Applicant: THK CO., LTD.
    Inventors: Nobuyuki Maki, Fukuji Nakano, Shigemi Nakamura
  • Publication number: 20120260504
    Abstract: An improved method for manufacturing the slider of a linear sliding rail includes employing a forged one-piece billet of the slider, providing an inner forming mold inwardly made into the actual shape of the slider to be molded, utilizing metal rigidity and extensibility of the billet, placing the billet onto the inner forming mold, employing a punching machine to axially drive the billet into the inner mold with the actual shape of the slider, subjecting the billet in the inner forming mold to a powerful press, extending and molding the billet according to the lines and the rail shapes of the slider, further providing an inner shaping mold located in a shaping mold, whose shape is the same as that of the above molded slider but whose size is slightly smaller than that of the molded slider, then driving the molded slider into the inner shaping mold by the punching machine and ejected it from the lower end of the inner shaping mold to complete a finished slider with a completely smooth surface, in order to ach
    Type: Application
    Filed: April 13, 2011
    Publication date: October 18, 2012
    Inventor: Lei-Jui Wu
  • Patent number: 8220258
    Abstract: Linear roller bearing assemblies can include a hub, a collar around the hub and roller bearing sub-assemblies disposed in a radial pattern around the hub. The roller bearing sub-assemblies can guide linear movement of the hub relative to the collar along a selected direction. Each roller bearing sub-assembly can include a roller and straps wrapped partially around the roller. Each strap is connected to at least one of the hub and the collar. And at least one of the straps can be connected to the roller while at least one of the straps can be circumferentially free of the roller. The hub and collar are moveable relative to each other along the selected direction for a distance that is approximately half of a circumference of the roller. Methods of forming linear roller bearing assemblies are also disclosed, as are multi-cylinder Stirling engines and a thermal energy recovery system.
    Type: Grant
    Filed: May 7, 2010
    Date of Patent: July 17, 2012
    Inventor: S. Grant Emigh
  • Publication number: 20120148177
    Abstract: A linear bearing assembly (the assembly) of the present invention is disposed in a housing of the assembly. A first rail and a second rail are movable relative to one another. A plurality of linear bearings are connected to the housing and disposed about the first and second rails. An actuator device is connected to at least one of the first rail and the second rail to selectively move the first rail and the second rail relative to one another and the housing in at least one of simultaneous and separate modes to redistribute lubricant in the linear bearings thereby preventing deformation of at least one of the first rail and the second rail.
    Type: Application
    Filed: December 9, 2010
    Publication date: June 14, 2012
    Inventors: Yefim Epshetsky, Mathew Peter Rosauer, Andrew Walter Heins, Richard McLean Stilfield, Lien Pham Stilfield
  • Patent number: 8132330
    Abstract: A method of making a bearing assembly and a bearing assembly is provided. The method includes the steps of extruding a support rail, providing a mounting surface on the support rail, mounting a bearing rail on the mounting surface and machining a bearing surface on the bearing rail. The bearing assembly includes an extruded support rail and a bearing rail. The bearing rail is of a harder material than the material of the support rail to which the bearing rail is mounted. The bearing rail further provides a machine polished linear contact.
    Type: Grant
    Filed: November 21, 2007
    Date of Patent: March 13, 2012
    Assignee: Pacific Bearing Company
    Inventor: Jonathan R. Schroeder
  • Patent number: 8109125
    Abstract: A method for manufacturing ultralow-resistance current sensors of size 0402 to 4518 of IEEE specifications includes the steps of: a raw metallic strip being pressed to roll over a first tension roller, a cutting tool over the first tension roller being fed to cut the raw metallic strip so as to form a deep groove thereof along the moving metallic strip, an insulating material being filled into and along the deep groove so as to form an lengthwise insulating portion of the metallic strip, and the metallic strip with the insulating portion being segmented into a plurality of ultralow-resistance current sensors.
    Type: Grant
    Filed: December 3, 2008
    Date of Patent: February 7, 2012
    Inventor: Jen-Huan Pan
  • Publication number: 20120012713
    Abstract: A drawer slide having first and second rails interconnected by a center rail. The center rail includes a spool configured to provide half-speed travel of the center rail relative to the travel of the first rail. The drawer slide is configured for use with a drawer assembly having a drawer and a chassis. The drawer assembly further includes a radius limiter secured to the center rail. The radius limiter travels at half-speed relative to the drawer. The radius limiter also automatically rotates relative to the travel of the drawer. The chassis includes sides including threaded backing plates, and mounting brackets. The mounting brackets include tri-lobed holes for receipt of a reciprocally shaped washer and a fastener for mounting the brackets to the chassis sides.
    Type: Application
    Filed: September 26, 2011
    Publication date: January 19, 2012
    Applicant: ADC Telecommunications, Inc.
    Inventors: Kathleen M. Barnes, Justin R. Horton, Thomas C. Tinucci, Thomas L. Barnes
  • Publication number: 20110280508
    Abstract: A thrust bearing component is formed of cold-reduced steel sheets and strip having surface roughness of Rmax?2 ?m and provided by cold rolling a high-carbon steel containing 0.9 wt % to 1.2 wt % of carbon, 1.2 wt % to 1.7 wt % of chrome, 0.1 wt % to 0.5 wt % of manganese, and 0.15 wt % to 0.35 wt % of silicon.
    Type: Application
    Filed: August 2, 2011
    Publication date: November 17, 2011
    Applicant: NTN CORPORATION
    Inventors: Tomoaki KAWAMURA, Yasuyuki Watanabe, Kousuke Obayashi
  • Patent number: 8029193
    Abstract: A guide rail and method of forming a guide rail is provided. The guide rail includes a base rail having a groove with a plurality of fingers formed therein and a race insert mounted in the groove. The race insert has at least two different load directions. The fingers extend generally non-parallel to the different load directions. The fingers are preferably deformed into a state of bending.
    Type: Grant
    Filed: March 5, 2009
    Date of Patent: October 4, 2011
    Assignee: Pacific Bearing Company
    Inventor: Robert Schroeder
  • Publication number: 20110200276
    Abstract: The present invention relates to a linear guide rail (10) suitable for co-operating with a slider (12). The contact between the linear guide rail and the slider is obtained by means of rolling elements (14). The guide rail is made of drawn steel and comprises holes (18) for operational assembly, and raceways (16) suitable for making contact with the rolling elements. The surface of the raceways is smoothed by means of abrasive tools. The surface of the guide is treated using nitriding, post-oxidation and micro-lubrication processes.
    Type: Application
    Filed: November 12, 2009
    Publication date: August 18, 2011
    Inventor: Loris Bolzonaro
  • Patent number: 7997801
    Abstract: Linear roller bearing, for carriage (1) which is longitudinally displaceable along rail (2). Carriage (1) has an endless channel (8) for endless circulation of rolling bodies (9). Channel (8) has load section (10), return section (11) and two deflection sections (12) which connect load section (10) to return section (11). Rolling bodies (9) roll in load section (10) on raceways (10a, 10b), and returned, without load, in return section (11). Bodies (9) are deflected in deflection sections (12) between load section (10) and return section (11). Deflection sections (12) have one inner deflection means (14) with inner deflection race (16) and outer deflection means (13) with outer deflection race (15). Inner deflection means (14) and outer deflection means (13) are connected, integrally to one another.
    Type: Grant
    Filed: November 14, 2006
    Date of Patent: August 16, 2011
    Assignee: Schaeffler KG
    Inventors: Peter Klos, Peter Heipt, Wolfgang Bauer
  • Publication number: 20110176756
    Abstract: A guide device for a sliding unit in a mobile terminal is provided. The guide device includes a lower slide including latch portions formed to open outwards, guide rails manufactured independently to be assembled with the latch portions, wherein the guide rails are disposed to extend in a longitudinal direction of the lower slide, and a guide plate comprising rack portions coupled with the guide rails, wherein the guide plate is disposed to face the lower slide.
    Type: Application
    Filed: January 13, 2011
    Publication date: July 21, 2011
    Applicants: SAMSUNG ELECTRONICS CO. LTD., KHVATEC CO., LTD.
    Inventors: Hyun-Suk SHIN, Jeong-Hun SEO, Sung-Gwan WOO, Young-Su SHIM
  • Publication number: 20110158566
    Abstract: In accordance with an example embodiment of the present invention, a method for providing a slide arrangement is provided, comprising: coupling a first rail part with a second rail part; deforming at least one of the first rail part and the second rail part for reducing a separation distance between the first rail part and the second rail part; and configuring the first rail part and the second rail part for relative movement.
    Type: Application
    Filed: December 30, 2009
    Publication date: June 30, 2011
    Applicant: NOKIA CORPORATION
    Inventors: Mikko Juhani Timperi, Tommi Antero Teuri
  • Publication number: 20110123138
    Abstract: The present invention relates to a bottom-mounted slide. The bottom-mounted slide includes a movable member, stationary members and a ball housing. First raceways are formed in both lateral sides of the movable member. Each stationary member has second raceways which are respectively connected to the first raceways by corresponding balls to guide the movable member. The balls roll along the corresponding first and second raceways. The ball housing is provided between the movable member and each of the stationary members. The ball housing supports the balls. A depressed part is provided in a predetermined portion of each of the lateral sides of the movable member between the corresponding first raceways. The depressed part is inserted into a hollow space defined inside the first raceways of the corresponding end of the movable member. Therefore, the stability can be increased by improvement of roll-forming and reduction of horizontal moment.
    Type: Application
    Filed: July 28, 2009
    Publication date: May 26, 2011
    Applicant: SEGOS CO., LTD
    Inventors: Yoon Sik Park, Hyun Ho Cha
  • Patent number: 7942579
    Abstract: Provided is a rolling guide device which can be produced easily and inexpensively by achieving a reduction in the number of parts constituting a slide member (2) and a reduction in machining worker-hours therefor.
    Type: Grant
    Filed: June 28, 2006
    Date of Patent: May 17, 2011
    Assignee: THK Co., Ltd.
    Inventor: Takeki Shirai
  • Publication number: 20100281861
    Abstract: Linear roller bearing assemblies can include a hub, a collar around the hub and roller bearing sub-assemblies disposed in a radial pattern around the hub. The roller bearing sub-assemblies can guide linear movement of the hub relative to the collar along a selected direction. Each roller bearing sub-assembly can include a roller and straps wrapped partially around the roller. Each strap is connected to at least one of the hub and the collar. And at least one of the straps can be connected to the roller while at least one of the straps can be circumferentially free of the roller. The hub and collar are moveable relative to each other along the selected direction for a distance that is approximately half of a circumference of the roller. Methods of forming linear roller bearing assemblies are also disclosed, as are multi-cylinder Stirling engines and a thermal energy recovery system.
    Type: Application
    Filed: May 7, 2010
    Publication date: November 11, 2010
    Inventor: S. Grant Emigh
  • Publication number: 20100239192
    Abstract: A guide rail includes a base rail with at least one finger extending from a first portion of the base rail, and at least one finger extending from a second portion of the base rail. A race insert is mounted against the fingers. A first race way is associated with the at least one finger extending from the first portion of the base rail. A second race way is associated with the at least one finger extending from the second portion of the base rail. The first and second race ways have different load transmission directions. The load transmission direction of the first race way is non-parallel to the at least one finger extending from the first portion of the base rail. The load transmission direction of the second race way is non-parallel to the at least one finger extending from the second portion of the base rail.
    Type: Application
    Filed: January 20, 2010
    Publication date: September 23, 2010
    Applicant: PACIFIC BEARING COMPANY
    Inventor: Robert Schroeder
  • Patent number: 7798719
    Abstract: A track rail is composed of a pair of rail members in which rolling contact surfaces for rolling bodies are formed, respectively, and a rail housing equipped with a pair of rail mounting grooves in which those rail members are fitted, respectively. Each of the rail members is fixed within a corresponding one of the rail mounting grooves via an adhesive layer. A reference projection, formed on a bottom of one of the pair of the rail mounting grooves, is in contact with a corresponding one of the rail members without the intermediary of the adhesive layer. The rail member fitted in the one of the rail mounting grooves is adhesively fixed in a state of being abutted against the reference projection. The rail member fitted in the other rail mounting groove is adhesively fixed at a predetermined distance from the reference projection.
    Type: Grant
    Filed: September 7, 2005
    Date of Patent: September 21, 2010
    Assignee: THK Co., Ltd.
    Inventors: Hidekazu Michioka, Tomoyuki Aida, Katsuya Iida
  • Patent number: 7785011
    Abstract: A roller element (10) is provided which has a central body (1) and a roller unit (2). The roller unit (2) is mounted so as to circulate on a non-circular race (21) about the central body (1) and so as to be mobile with respect to the central body (1) by the rolling movement of the rollers (3) of the roller unit (2) on the central body (1). The rollers (3) are configured as balls or substantially cylindrical elements. A peripheral surface of the rollers (3), for a substantial part, is shaped as a rolling surface that corresponds to the central body (1) and for rolling off on the central body (1). The elements of the roller unit (2) have play in relation to one another and/or the roller unit has play regarding its mobility in relation to the central body (1).
    Type: Grant
    Filed: May 20, 2005
    Date of Patent: August 31, 2010
    Assignee: WRH Walter Reist Holding AG
    Inventor: Walter Reist
  • Publication number: 20100150483
    Abstract: Provided is a motion guide device achieving both of high strength and weight reduction and yet having excellent mass-productivity. The motion guide device has a raceway rail 1 having a rolling-element rolling part 1a; a moving block 2 having a loaded rolling-element rolling part 8c facing the rolling-element rolling part 1a and a rolling-element circulation passage including a rolling-element return passage 10a extending approximately in parallel with the loaded rolling-element rolling part 8c; and a plurality of rolling elements 3 arranged in the rolling-element circulation passage. The moving block 2 has a rolling part 8 made of steel and having the loaded rolling-element rolling part 8c, a mounting part 9 connected to the rolling part 8, having a mounting surface 9a for mounting the moving block 2 onto a counterpart device and having a specific gravity lower than that of the rolling part 8, and a return part 10 made of resin and having the rolling-element return passage 10a.
    Type: Application
    Filed: March 27, 2008
    Publication date: June 17, 2010
    Applicant: THK CO., LTD.
    Inventors: Tomoyuki Aida, Ayako Misawa
  • Publication number: 20100111456
    Abstract: A supporting track element for use in a linear ball bearing, with at least one outer surface which is outwardly curved in one direction, at least in some regions, and at least one track which is opposite the outer surface and is intended for at least partially receiving load-bearing balls of a linear ball bearing. In addition, the supporting track element in cross-section has at least one material interruption which forms two adjacent cross-sectional regions. The adjacent cross-sectional regions touch at least in the region of the outer surface. As a result, the supporting track element is produced cost-effectively without significant limitations to the functionality thereof occurring. A method for producing a supporting track element is also proposed. Furthermore, a linear ball bearing is equipped with supporting track elements.
    Type: Application
    Filed: October 29, 2009
    Publication date: May 6, 2010
    Applicant: SCHAEFFLER KG
    Inventor: Udo Klein
  • Publication number: 20100104225
    Abstract: The present invention provides novel approaches to manufacturing and assembling linear motion slides that are quick and easy to install without requiring the use of fasteners. Additionally, the present invention discloses a novel track assembly apparatus that couples with standard linear motion support bases without the use of fasteners.
    Type: Application
    Filed: October 29, 2008
    Publication date: April 29, 2010
    Inventor: Nigel S. Watson
  • Patent number: 7699525
    Abstract: A support arrangement for a machine portal includes a lightweight support structure and a row of base segments supporting at least one guide rail of a linear drive on the support structure. Both the base segments and the guide rail exhibit different thermal expansion behavior from the support structure. The base segments are fixed at a distance from their edges by fixing screws to respective fastening members extending into the support structure. The base segments define at least one step on which they support the guide rail with a positive fit. The guide rail is fixed to the support structure by at least one expansion screw. The support arrangement maintains precise alignment of the guide rail while accommodating differing thermal expansions between the rail, base segments and support structure.
    Type: Grant
    Filed: September 8, 2006
    Date of Patent: April 20, 2010
    Assignee: TRUMPF Sachsen GmbH
    Inventor: Gunter Harnisch
  • Publication number: 20090317025
    Abstract: A yoke for use in a rack and pinion steering assembly is described. The yoke may include a bearing surface that provides a low coefficient of friction, allowing for a greater biasing force against the rack shaft. The materials and design of the yoke can provide for a quieter system with reduced vibration.
    Type: Application
    Filed: June 19, 2009
    Publication date: December 24, 2009
    Applicant: SAINT-GOBAIN PERFORMANCE PLASTICS CORPORATION
    Inventors: Nicholas Witting, Joseph Liquore, Timothy J. Hagan
  • Publication number: 20090304312
    Abstract: Provided is a motion guide device having a lubricating path usable for both of grease lubrication and oil lubrication. The motion guide device has a raceway rail 1 and a moving block 2 mounted on the raceway rail 1 slidably via rollers 3 as rolling elements. Onto each moving-directional end of the moving block 2, an endplate 32 is attached which has a direction change path 6 formed therein for circulation of the rollers 3 and a lubricating path 38 formed therein for supplying the rollers 3 with a lubricant. In oil lubrication with use of lubricating oil as the lubricant, a lubricating path piece 39 is fit into the endplate 32 to narrow the lubricating path 38, while in grease lubrication with use of grease as the lubricant, the lubricating path piece 39 is not fit to the endplate 32 so as to widen the lubricating path 38 as compared with that for the oil lubrication.
    Type: Application
    Filed: December 25, 2006
    Publication date: December 10, 2009
    Applicant: THK CO., LTD.
    Inventors: Takuya Horie, Hiroyuki Kishi
  • Publication number: 20090263055
    Abstract: A guide carriage for a linear roller bearing is supportable in a longitudinally displaceable manner via at least one row of rollers on a guide rail which extends in a longitudinal direction, a separate rolling surface part which includes a rolling surface for the rollers is assigned to each row of rollers, and the rolling surface part is connected via an adhesive layer to a carrier body. The adhesive layer is designed essentially planar on the back side of the rolling surface part which faces away from the rolling surface, the rolling surface part being accommodated in a recess—which has an L-shaped cross section—of the carrier body.
    Type: Application
    Filed: March 11, 2009
    Publication date: October 22, 2009
    Inventors: Michael Klein, Richard Kuehnlein, Hans-H Kohlmeier, Heinz Rossteuscher, Carsten Pfeuffer, Sascha Frenznick, Rudolf Schlereth, Andreas Schupies, Roland Greubel
  • Publication number: 20090123096
    Abstract: Provided is a rolling guide device which can be produced easily and inexpensively by achieving a reduction in the number of parts constituting a slide member (2) and a reduction in machining worker-hours therefor.
    Type: Application
    Filed: June 28, 2006
    Publication date: May 14, 2009
    Applicant: THK CO., LTD.
    Inventor: Takeki Shirai
  • Patent number: 7497014
    Abstract: A sliding bearing for axial and/or radial arrangement of a first bearing member in relation to a second bearing member, comprises a second bearing member, which has a bearing recess provided with a second slide face; a first bearing member, which is lodged in the bearing recess and which is mounted axially and/or radially, the first bearing member having a first slide face, which is opposite the second slide face and spaced therefrom by a clearance; at least one sliding/guiding element, which is disposed between the first and the second bearing members and fixed in relation to one bearing member, for guidance of a motion of the first relative to the second bearing member; an equalizing compound, which is disposed between the at least one sliding/guiding element and the bearing member relative to which is fixed the at least one sliding/guiding element, for adaptation of the guide clearance between the at least one sliding/guiding element and the slide face that is displaceable in relation thereto, the equalizi
    Type: Grant
    Filed: May 19, 2004
    Date of Patent: March 3, 2009
    Assignee: Suspa Holding GmbH
    Inventor: Herbert Muller
  • Patent number: 7448134
    Abstract: Pressed shape steel, made of a low cost general steel material that is not hardened, forms a frame with long grooves cut therein. Guide rails, made of a specialized steel material that can be subjected to a hardening treatment, are hardened. Thereafter, outer surfaces of the hardened guide rails are ground and the guide rails are integrally joined in the long grooves. Ball-rolling grooves are formed in the guide rails, thereby completing a guide-equipped frame for an actuator. Because the general steel material and the specialized steel material are principally ferrous materials, both exhibiting a Young's modulus at or above 170 GPa with substantially the same coefficient of linear thermal expansion, the frame needn't be increased in size or have a complex internal structure to reinforce the strength of the frame, and the guide rails remain securely retained in the grooves even if the actuator experiences changes in temperature.
    Type: Grant
    Filed: November 29, 2006
    Date of Patent: November 11, 2008
    Assignee: SMC Kabushiki Kaisha
    Inventors: Shigekazu Nagai, Akio Saitoh, Masaru Saitoh
  • Publication number: 20080253703
    Abstract: Provided are a linear guide device and a method of manufacturing a track rail of the linear guide device which make it unnecessary to finish rolling contact surfaces for rolling bodies for the purpose of ensuring parallelism between the rolling contact surfaces after fixing a plurality of rail members, in which the rolling contact surfaces for the rolling bodies are formed, to a rail housing while making it possible to achieve a maximum possible improvement in production efficiency and a reduction in production cost in producing the track rail. The track rail is composed of a pair of the rail members in which rolling contact surfaces for rolling bodies are formed, respectively, and the rail housing equipped with a pair of rail mounting grooves in which those rail members are fitted, respectively. Each of the rail members is fixed within a corresponding one of the rail mounting grooves via an adhesive layer.
    Type: Application
    Filed: September 7, 2005
    Publication date: October 16, 2008
    Applicant: THK CO., LTD.
    Inventors: Hidekazu Michioka, Tomoyuki Aida, Katsuya Iida
  • Publication number: 20080120845
    Abstract: The roller can be suitably used for a guide section of a moving unit capable of moving a heavy matter without enormously increasing rigidity of a rail and is capable of reducing weight and production cost of the moving unit. The roller comprises: a tubular core having an outer circumferential face, in which a groove section is formed; and a resin coat section continuously coating the outer circumferential face of the tubular core, an inner face of the groove section, both ends of the tubular core and at least parts of an inner circumferential face thereof.
    Type: Application
    Filed: October 19, 2007
    Publication date: May 29, 2008
    Inventor: Tomio Hama