Combined With Seal Or Guard Patents (Class 384/15)
  • Patent number: 11905990
    Abstract: A motion guiding device includes a supporting body and a moving body. The moving body includes a moving body main body, a cover body and a circulation component. The cover body includes a first lubrication groove. The motion guiding device is further provided with a lubrication path component, the lubrication path component including a second lubrication groove having a cross-sectional area less than that of the first lubrication groove. When a lubricating oil is used as the lubricant, the lubricant is supplied by a lubricating oil lubrication path formed by the first lubrication groove and the second lubrication groove. In this way, in the motion guiding device, the lubrication path may be widened when the lubricating grease is used to lubricate, while the lubrication path may be narrowed when the lubricating oil is used to lubricate, so that a good lubrication may be easily achieved.
    Type: Grant
    Filed: May 7, 2020
    Date of Patent: February 20, 2024
    Assignee: THK CO., LTD.
    Inventors: Xingjia Yu, Yue Liu, Tomoyuki Aida
  • Patent number: 11904392
    Abstract: A ratcheting anti-lock chuck guard for regulating access to a lathe chuck includes a guard assembly having a main body section and an actuation section pivotally coupled to the main body section. The chuck guard includes an access assembly having a mounting shaft coupled to the guard assembly and a ratcheting assembly coupled to the shaft, the ratcheting assembly being rotatably movable to predetermined angular positions when urged by actuation of the guard assembly. The guard assembly is rotated to an open configuration as the mounting shaft and ratcheting assembly is rotated. The ratcheting assembly includes a serrated lock wheel coupled to the mounting shaft that has a plurality of teeth each defining a lock pocket and includes a lock pawl configured to communicate with the lock pockets as the ratcheting assembly is incrementally operated. Operation the lathe is locked until the chuck guard is rotated to a predetermined angle/position.
    Type: Grant
    Filed: July 25, 2023
    Date of Patent: February 20, 2024
    Inventor: Joseph Peter Gasparino, Jr.
  • Patent number: 11841074
    Abstract: A transmission mechanism includes a housing, a first rotating member accommodated in the housing and rotatable about a first rotating member axis, and a lubricating member accommodated in the housing and containing a lubricant. While the first rotating member rotates about the lubricating member, the lubricating member applies a preload to and comes into contact with a part of the first rotating member on the basis of an elastic force, so that the part of the first rotating member is lubricated with the lubricant.
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: December 12, 2023
    Assignee: SANKYO SEISAKUSHO CO.
    Inventor: Atsushi Oishi
  • Patent number: 11773902
    Abstract: Linear motion mechanism sealants capable of operating at low torque when engaging in linear motion which are capable of carrying out sealing with respect to fine particulate several ?m in diameter, and which are side seal units for sealing gaps at a shaft provided at a front end portion and a back end portion of a slider of a linear motion mechanism equipped with said shaft and said slider which carries out reciprocating linear motion on said shaft, the linear motion mechanism side seal units 4 being characterized in that fibrous surfaces of seal members comprising fibrous material are arranged so as to be directed toward said shaft in such fashion as to abut and conform to the cross-sectional shape of said shaft at the front end portion and the back end portion of the slider.
    Type: Grant
    Filed: December 24, 2015
    Date of Patent: October 3, 2023
    Assignee: SANWA TECHNO CO., LTD.
    Inventors: Kazuro Fukui, Masashi Kouhara, Toshio Takino, Kazuki Inoue
  • Patent number: 11701493
    Abstract: The present disclosure relates generally to systems, devices, and methods for supporting, stabilizing, and/or positioning a medical device, such as a transcatheter medical device. The stabilizer allows for control of degrees of freedom from no movement to free movement to selective movements, to substantially translation only movement and/or to substantially rotational only movement of the medical device. The patent describes pure mechanical embodiment as well as smart embodiments that can synergistically sense, actuate and/or transmit data between the stabilizer, medical device and control or display system to operate and/or deploy the device/therapy.
    Type: Grant
    Filed: April 9, 2020
    Date of Patent: July 18, 2023
    Inventor: Raghuveer Basude
  • Patent number: 11603886
    Abstract: A guide carriage (1) of a linear guide includes a circulation channel (8) for rolling bodies (2), which is formed from a load section (3), two deflection sections (5) and a return section (4). A valve (16) arranged in a lubricant channel (10) to prevent the back flow of lubricant from the circulation channel (8) is arranged at a supply point (13) for supplying lubricating agent to one of the deflection sections (5), and the deflection section (5) is delimited by a deflection shell (9) located in an end piece (7). The valve (16) is formed integrally with at least one of the elements deflection shell (9) and end piece (7).
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: March 14, 2023
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Thomas Elicker, Martin Menges
  • Patent number: 11598370
    Abstract: A linear guide rail structure includes a guide rail, a dustproof cover, a pressure-exerting plate, and a locking member. The guide rail extends along an axial direction. The guide rail has at least one locking hole extending from a top surface in a height direction perpendicular to the axial direction. The dustproof cover is disposed on the top surface of the guide rail to cover the locking hole. The pressure-exerting plate is disposed on an end portion of the guide rail to press against the dustproof cover. The locking member includes a fastener and at least one pressure-exerting block. The fastener is fixed to the end portion of the guide rail. The pressure-exerting block is locked into the fastener in the height direction to abut against the pressure-exerting plate in the height direction, so that the pressure-exerting plate is pressed against the dustproof cover.
    Type: Grant
    Filed: February 19, 2021
    Date of Patent: March 7, 2023
    Assignee: Chieftek Precision Co., Ltd.
    Inventor: Ming-Che Hsu
  • Patent number: 11511150
    Abstract: The exercise device of the invention includes a rail carrier body, at least one fixed body in contact with the rail carrier body, at least one rail located on the rail carrier body, at least one movable body located on the rail, at least one adjusting rod located on the upper portion of the movable body and at least one transmission bar which is in contact with the adjusting rod and transmits the rotary motion on the adjusting rod to the fixing pin or rail.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: November 29, 2022
    Assignee: BASI SYSTEMS PILATES SANAYI TICARET A.S.
    Inventors: Mumin Cengiz Han Ucgun, Servet Gulbay
  • Patent number: 11260486
    Abstract: In a clamping fixture 1, in particular a vice, with a housing (2) in which a guide track (10) is provided and with at least one base jaw (3, 4) to each of which a clamping jaw (6, 7) can be attached, the cavities or air gaps (21) between the inner wall of the guide grooves (10) and the base jaws (3, 4) should be completely covered. This is achieved in that a seal (11) is inserted into each of the air gaps (21) existing in the housing 2 between the base jaw (3, 4) and the inner wall of the guide track (10) as well as in the parting plane between the base jaws (6, 4) and at the face ends (16) in the area of the guide track (10) running there, and that the particular seal (11) is held in a specified position by means of a support strip (12).
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: March 1, 2022
    Assignee: SMW-Autoblok Spannsysteme GmbH
    Inventor: Eckhard Maurer
  • Patent number: 11248651
    Abstract: A motion guide apparatus is provided which can make a carriage compact without reducing a rated load and an allowable load. The motion guide apparatus includes: a track member (1) and a carriage (2) that moves along the track member (1). A circulation path (7) of the carriage (2) includes a loaded path (C1), a return path (C2) parallel to the loaded path (C1), and a substantially U-shaped turn path (C3) connected to the loaded path (C1) and the return path (C2). At least a part of the turn path (C3) bends in side view in a direction where the loaded path (C1) and the return path (C2) coincide.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: February 15, 2022
    Assignee: THK CO., LTD.
    Inventors: Toru Takahashi, Ryuichi Yamakoshi
  • Patent number: 11147372
    Abstract: A micro linear slide rail assembly and a slider are disclosed. The slider straddles a slide rail. A rolling member is disposed between the slide rail and the slider. The slider is linearly displaced on the slide rail by rolling of the rolling member. The slider includes a main body, a frame coupled to the main body, and two end caps connected to two opposite ends of the main body. The slider has a first unloaded track surface. The first unloaded track surface surrounds an accommodating area. A first engaging portion extends from a lower edge of the accommodating area. The frame has a second unloaded track surface. The frame is mounted to the main body through a second engaging portion to be engaged with the first engaging portion. The first unloaded track surface and the second unloaded track surface are combined to form an unloaded path.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: October 19, 2021
    Assignee: Chieftek Precision Co., Ltd.
    Inventor: Ming-Che Hsu
  • Patent number: 11067123
    Abstract: A linear motion guide unit has sleeves which form return passages and are formed of a high temperature resistant resin material which allows use in a high temperature environment. In the linear motion guide unit, spaces serving as grease pools are formed in the sleeves inserted into insertion holes of a carriage. The sleeves are formed of a thermoplastic resin whose heat distortion temperature is higher than 80° C. Each sleeve is formed by combining split circular members obtained by dividing a cylindrical member into two pieces along the longitudinal direction, and a plurality of grooves which become spaces are formed on the inner circumferential surfaces of the sprit circular members through cutting orthogonal to a parting plane between the split circular members.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: July 20, 2021
    Assignee: NIPPON THOMPSON CO., LTD.
    Inventors: Ayana Takemura, Shigemasa Itabashi
  • Patent number: 11001293
    Abstract: A steering shaft for a motor vehicle includes a hollow shaft and an inner shaft which is arranged coaxially in the hollow shaft. The inner shaft is configured to be telescoped relative to the hollow shaft in the direction of the longitudinal axis of the steering shaft and is connected in a torque-transmitting manner to the hollow shaft via at least one rolling body. The rolling body is received in a rolling body cage such that it can roll in the direction of the longitudinal axis between the inner shaft and the hollow shaft. In order to achieve a high operational reliability with a relatively low manufacturing complexity, the rolling body cage has at least one seal element which bears sealingly against the hollow shaft and/or the inner shaft.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: May 11, 2021
    Assignees: thyssenkrupp Presta AG, thyssenkrupp AG
    Inventor: René Marco Schmidt
  • Patent number: 10816037
    Abstract: A seal member for a linear guide including a guide rail and slider movably set on the guide rail through rolling elements, the seal member, attached to the slider, configured to seal an opening of a gap between the guide rail and slider, the seal member includes: fibers having been impregnated with rubber or resin, wherein a sliding contact part of said seal member, which is in sliding contact with the guide rail, is made of the fibers.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: October 27, 2020
    Assignees: NITTA CORPORATION, THK CO., LTD.
    Inventors: Takehito Dei, Yoji Ishizaki, Yoshiharu Kiyohara, Kenichiro Aoki, Yasuhiro Aoki
  • Patent number: 10612591
    Abstract: To provide a linear guide device having a higher dustproof performance and a dustproof function with a higher degree of freedom. A linear guide device includes a guide rail, a slider, and a rolling element, a seal member which seals a gap formed between a side surface portion of the guide rail and an inner side surface portion of the slider. The seal member includes a first seal member provided at the inner side surface portion of the slider, and a second seal member which is larger in width than the first seal member and is provided in a bottom surface portion of a slider body to be independently detachable from the bottom surface portion, as superimposed on the first seal member.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: April 7, 2020
    Assignee: NSK Ltd.
    Inventor: Jun Matsumoto
  • Patent number: 10359074
    Abstract: A miniature slider structure having foot portions and a linear slide are provided. The linear slide includes a slider and a slide rail. The slider straddles the slide rail so that the slider can be reciprocated on the slide rail. The slide rail extends in a direction. The slider includes a plate and two opposite foot portions extending downward from the plate. The slider straddles the slide rail through the foot portions. The plate has a mounting surface. Through the polishing process on the mounting surface of the plate, the roughness Ra of the mounting surface is controlled to be in the range of 0.01 microns to 0.1 microns so as to reduce the deformation of the foot portions when the working platform is installed.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: July 23, 2019
    Assignee: Chieftek Precision Co., Ltd.
    Inventor: Ming-Che Hsu
  • Patent number: 10294993
    Abstract: A lubricant supply device for a linear guide apparatus is configured to include an end cap 5, and a container 7 retaining lubricant and disposed adjacent to the end cap 5. The end cap 5 is formed with a through-hole 16 extending toward the container 7 from a direction change path 5a. The container 7 is formed with an aperture communicating with the through-hole 16 of the end cap 5. The lubricant is supplied into the direction change path 5a via the aperture of the container 7 and the through-hole 16 of the end cap 5. The slider can be thereby lubricated while preventing damage to a rolling element and the direction change path of the end cap.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: May 21, 2019
    Assignee: NSK Ltd.
    Inventor: Nobuaki Yamagishi
  • Patent number: 10280976
    Abstract: A support structure for a bellows attached to a slide table, and which is capable of expanding and contracting in a movement direction of the slide table, includes support members that support the bellows, shafts disposed substantially in parallel with the movement direction of the slide table, and bushes that support the support member so as to be capable of moving in the movement direction of the slide table with respect to the shafts. Fluid bearings are formed by supplying a fluid between the bushes and the shafts.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: May 7, 2019
    Assignee: FANUC CORPORATION
    Inventors: Hiroshi Minami, Masahiro Murota, Yuuta Hayakawa
  • Patent number: 10265820
    Abstract: In a machine tool, in particular a laser machine tool, a workpiece slide or tool slide is movable along a guide rail and has at least two guide carriages that are guided on the guide rail. The machine tool has a covering hood that is moved along with the slide, for covering that rail section of the guide rail that is located between the two guide carriages. The covering hood is a part that is not connected to the slide. The covering hood is guided on the guide rail in a displaceable manner between the two guide carriages and is entrained in the displacement direction by the rear guide carriage when the slide is displaced.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: April 23, 2019
    Assignee: TRUMPF Laser- und Systemtechnik GmbH
    Inventors: Dominik Widmann, Dietrich Sauter
  • Patent number: 10253808
    Abstract: A curvilinear rolling guide unit allows a slider to readily straddle an endless guide rail and can prevent leakage of lubricant from a lubrication hole formed in each end cap. Each end cap is composed of an end cap body and a spacer. The end cap body has a lubrication hole, a lubrication groove, a slit which are formed in an upper portion thereof. The lubrication groove establish communication between the lubrication hole and turnaround passages. The slit extends from the lubrication hole to the under surface of the upper portion. A lubrication plug is fitted into the lubrication hole of the end cap body, closes the slit, and has a hole formed therein and serving as a lubrication passage communicating with the lubrication groove.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: April 9, 2019
    Assignee: NIPPON THOMPSON CO., LTD.
    Inventor: Masashi Matsui
  • Patent number: 10066696
    Abstract: A damper includes a cylinder, an annular rod guide, a rod, an annular oil seal, and an annular seal holder. The cylinder internally forms an action chamber. The rod guide is secured to one side opening of the cylinder. The rod is inserted through an inner peripheral side of the rod guide so as to be axially movable. The oil seal is installed to the action chamber side of the rod guide to be slidably in contact with an outer peripheral surface of the rod. The seal holder supports the oil seal from the action chamber side. The rod guide includes a holding portion to hold the seal holder.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: September 4, 2018
    Assignee: KYB Corporation
    Inventor: Hideaki Takeuchi
  • Patent number: 10054160
    Abstract: An end seal device of a linear guide includes a main plate and a cladding member. The main plate includes an upper portion, two engaging portions extending downwardly and bent rearwardly from the upper portion, and two lower contact portions extending downwardly from the engaging portions and each having a penetrating hole. The cladding member includes cladding portions respectively attached to major surfaces of the main plate, and two filling portions each filling the penetrating hole to interconnect the cladding portions for firmly covering and protecting the main plate.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: August 21, 2018
    Assignee: AIRTAC INTERNATIONAL GROUP
    Inventors: Shih-Chung Wang, Chang-Ye Li, Kuo-Tung Ho, Chia-Hao Ho
  • Patent number: 9897142
    Abstract: A linear slide includes: a rail; a slide block, which is mounted on the rail and is movable relative to the rail; a plurality of rolling elements, which are arranged between the rail and the slide block; two end caps, which are respectively mounted to two ends of the slide block, the end caps each comprising a mounting trough formed therein to correspond to and face the rail, the mounting trough having a wall; and two dust protection plates, each of which is arranged in each of the mounting troughs, each of the dust protection plates comprising a main body and two elastic sections projecting from two opposite sides of the main body such that one of the elastic sections is in contact engagement with the wall and the other one of the elastic sections is engageable with a surface of the rail.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: February 20, 2018
    Assignee: HIWIN TECHNOLOGIES CORP
    Inventors: Yu-Wen Tsai, Sheng-Hsiang Huang
  • Patent number: 9863470
    Abstract: An object is to provide a motion guide apparatus that can facilitate an assembly operation. An end member (4a, 4b) including an inner peripheral side of a direction changing path (2c) is placed on an end surface in a movement direction of a moving member body (3). At least one of a pair of the end members (4a and 4b) includes an opening (21) linking to the inner peripheral side of the direction changing path (2c) to load rolling elements (42) into a circulation path. Opposing surfaces (18) of the pair of the end members (4a and 4b) to the moving member body (3) are formed in flat surfaces. The pair of the end members (4a and 4b) molded integrally with a holding portion (5) is incorporated into the moving member body (3) in a direction orthogonal to the movement direction of the moving member body (3). A lid member (7a, 7b) closes the opening (21) in the end member (4a, 4b).
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: January 9, 2018
    Assignee: THK CO., LTD.
    Inventors: Shigeo Tomita, Junichi Sakai, Nobuyuki Maki, Kaoru Hoshide, Katsunori Yamamura, Muten Iwamoto, Kazuya Horiike, Kenji Narata, Fukuji Nakano, Shigemi Nakamura, Yosuke Irie, Yuki Nakamura
  • Patent number: 9562564
    Abstract: A guide carriage of a linear guide, which guide carriage has a back (1) and legs (2) bent away from the back (1) and disposed along a longitudinal axis of the guide carriage for engaging over a guide rail (7), the two legs (2) are each provided with a longitudinal seal (5) having rod-shaped bodies (12) each of which has a sealing lip (8) on sides facing one another. The rod-shaped body (12) is supported on an abutment (9a) of the leg (2) provided along the longitudinal axis, wherein the rod-shaped body (12) is retained on the guide carriage together with the two axial rod ends (13, 15, 18) of the rod-shaped body (12) and is spring-loaded against the abutment (9a) by means of the inherent spring force of the rod-shaped body (12).
    Type: Grant
    Filed: March 3, 2014
    Date of Patent: February 7, 2017
    Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Patrick Daniel, Dietmar Rudy
  • Patent number: 9488223
    Abstract: A guide carriage for an elongated guide rail includes a main body, an end cap, and at least one row of rolling bodies accommodated in a continuous bypass channel. The end cap bears indirectly against a longitudinal end face of the main body and has a fastening bore through which a fastening screw passes. The fastening screw is screwed into the main body. The continuous bypass channel has a supporting portion and a return channel that are connected via a curved bypass channel that is arranged in the end cap. A lubricant flow path is arranged in the end cap and extends from a lubrication port to the row of rolling bodies. A first cavity is arranged between the fastening bore and the fastening screw. The first cavity forms a component of the lubricant flow path.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: November 8, 2016
    Assignee: Robert Bosch GmbH
    Inventors: Gerhard Roesch, Stefan Dorn, Martina Elting, Matthias Zeier, Juergen Schenk, Sebastian Schierling, Michael Korbacher, Gerd Spatschek, Wolfgang Kuellstaedt, Richard Kuehnlein
  • Patent number: 9255608
    Abstract: A linear guide apparatus is provided such that even if the length of an underseal is changed, the adhesion of the underlip and the side lip can be maintained and the lubricant leakage from the slider is preventable. In the linear guide apparatus, the underseal (10) includes a gap seal protrusion part (20) formed to protrude toward a side seal (17) side to seal the gap between the underseal and the side seal. The gap seal protrusion part (20) is integrally formed adjacently to an underlip (10b) of the underseal (10), and is in contact with a terminal end face (17e) of the side lip (17b) of the side seal (17) without a gap.
    Type: Grant
    Filed: April 22, 2013
    Date of Patent: February 9, 2016
    Assignee: NSK Ltd.
    Inventors: Jun Matsumoto, Yoshinori Mizumura
  • Patent number: 9222510
    Abstract: An inside seal is installed to make close contact with a lower surface of a slider to exclude foreign material from circulating circuits, ensuring smooth sliding movement of the slider relative to a guide rail. The inside seal is composed of a major portion made of an elastic member and a metallic core, an elastic lip extending sidewise from a lengthwise side of the major portion to come into sliding contact with a guide rail, and hooked portions upright to fit into slots on end caps to keep in place the inside seal. Another longitudinal side has elastic edges to come into elastic abutment against the inside wall surface of the end cap.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: December 29, 2015
    Assignee: NIPPON THOMPSON CO., LTD.
    Inventor: Yoshihiro Yoshida
  • Patent number: 9169868
    Abstract: A movable member of a linear slide assembly includes a slide member having two legs to mount the slide member to a rail. Two covers are respectively connected to two ends of the slide member. A track is formed between the legs of the slide member and the rail. Rolling members are installed in the circulation path of the slide assembly and drive the movable member along the rail back and forth. Two reinforcement plates are respectively connected to outside of the two covers and each reinforcement plate has a side plate and two bent extensions which are fixed to the legs of the slide member. The bent extensions each have an engaging portion which is engaged with the protrusion on the slide member. The engaging portions bear axial force applied to the rolling members to secure the connection between the covers and the slide member.
    Type: Grant
    Filed: May 1, 2012
    Date of Patent: October 27, 2015
    Assignee: CHIEFTECH PRECISION CO., LTD.
    Inventor: Ming-che Hsu
  • Patent number: 9169869
    Abstract: To provide a side seal capable of preventing the entrance of the foreign matter to the inside of the slider and the outflow of the lubricant without damaging or reducing the original function of the lip, and to provide a linear guide apparatus including the above described side seal. A linear guide apparatus (1) includes a side seal (30) attached to an end of the slider (20) in the axial direction and including a lip portion (33) coming into sliding contact with the guide rail (10). The side seal (30) includes a thin film (40) coming into sliding contact with the guide rail (10) and filling a part of a gap (34) of the lip portion (33).
    Type: Grant
    Filed: September 19, 2012
    Date of Patent: October 27, 2015
    Assignee: NSK Ltd.
    Inventor: Toshio Yoshida
  • Patent number: 9169875
    Abstract: A lip portion of an end seal is born against a metallic core to make no interference against an end cap. The metallic core controls deformation of the lip portion to improve the close engagement of the lip portion with a guide rail. The lip portion is composed of an outside lip extending outwards and an inside lip extending inwards of the slider. A root portion where the inside and outside lips are merged together is secured to the metallic core in such a relation that the metallic core bears stress exerted on respective center lines of the outside and the inside lips. The metallic core is composed of a mounting portion having a mounting surface, a bent portion extending widthwise of the slider and biased or deflected more outward of the slider to prevent the lip portion from make any interference with the end cap.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: October 27, 2015
    Assignee: NIPPON THOMPSON CO., LTD.
    Inventor: Yuichi Shibuya
  • Patent number: 9133878
    Abstract: To improve sealability of end portions of under seal in a linear guide apparatus. A seal mechanism of the linear guide apparatus includes under seals and side seals to provide seals between a guide rail and a slider. Auxiliary lip is attached on an inner surface of an end cap and in sliding contact with the guide rail. The auxiliary lip is bent in its middle and covers the end portion of the under seal from two directions. The auxiliary lip includes an axial direction lip and an intersecting direction lip integrally formed with the axial direction lip and continuously extending from an end portion of the axial direction lip.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: September 15, 2015
    Assignee: NSK Ltd.
    Inventor: Takumi Nakagawa
  • Patent number: 9051966
    Abstract: A linear guide apparatus maintaining a high dust-proof performance over an extended period of time and includes side seal units attached to end parts of a slider in the axial direction. Each side seal unit is provided with: a first seal member, at the slider, arranged in the axial direction of the slider; a second seal member at the outside of the slider in the axial direction; and a lubricating member held between the first and second seal members. The first seal member has first lip parts sliding against the rolling element rolling grooves of the guide rail, while the second seal member has second lip parts sliding against the rolling element rolling grooves. The lubricating member has a first oil-containing member for supplying lubricant to the rolling element rolling grooves. The first and second lip parts are arranged not to come into contact with the first oil-containing member.
    Type: Grant
    Filed: July 25, 2011
    Date of Patent: June 9, 2015
    Assignee: NSK Ltd.
    Inventors: Jun Matsumoto, Ryoichi Sato, Masaru Hattori
  • Patent number: 9028148
    Abstract: A motion guide device including a track shaft having a rolling surface; a moving member movable along the track shaft; a first seal member in sliding contact with a surface of the track shaft to close a gap between the track shaft and the moving member; and a second seal member provided along the rolling surface of the track shaft and closes the gap between the track shaft and the moving member. The second seal member includes: a fixing substrate locked to the moving member; and a seal portion fixed to the fixing substrate along the rolling surface of the track shaft and includes a seal lip portion in sliding contact with the surface of the track shaft and an extended seal portion in close contact with the first seal member while being compressed by the first seal member when the first seal member is fixed to the moving member.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: May 12, 2015
    Assignee: THK Co., Ltd.
    Inventors: Ryuji Furusawa, Takuya Horie, Satoshi Kashiwagura, Mitsumasa Wada, Shinya Mori, Yuki Nakamura, Yosuke Irie, Masanori Yoshino, Shinya Saito, Teruaki Ooka, Marie Horikawa
  • Patent number: 9022655
    Abstract: A side seal for a linear guide apparatus including a guide rail, a slider, and a plurality of rolling elements includes seal members formed of different materials, a holder plate and covers. Both seal members have recesses formed in a first face of a base and fitted with a protrusion of the holder plate. Both seal members have respective lips directed in opposite directions separated from each other. A tip of the lip of the first seal member is formed to have a shape in plane contact with the face of the guide rail. A tip of the lip of the second seal member is formed to have a shape in line contact with the face of the guide rail.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: May 5, 2015
    Assignee: NSK Ltd.
    Inventor: Koichi Kawakami
  • Publication number: 20150110426
    Abstract: A linear guide apparatus is provided such that even if the length of an underseal is changed, the adhesion of the underlip and the side lip can be maintained and the lubricant leakage from the slider is preventable. In the linear guide apparatus, the underseal (10) includes a gap seal protrusion part (20) formed to protrude toward a side seal (17) side to seal the gap between the underseal and the side seal. The gap seal protrusion part (20) is integrally formed adjacently to an underlip (10b) of the underseal (10), and is in contact with a terminal end face (17e) of the side lip (17b) of the side seal (17) without a gap.
    Type: Application
    Filed: April 22, 2013
    Publication date: April 23, 2015
    Inventors: Jun Matsumoto, Yoshinori Mizumura
  • Patent number: 8998491
    Abstract: A linear actuator includes a guide mechanism and a retainer. On a guide block of the guide mechanism, a pair of ball-circulating grooves is formed on the lower surface that faces a cylinder body. Multiple balls are loaded in the ball-circulating grooves. Paired cover blocks are respectively mounted on the two ends of the guide block. The retainer has the form of paired ball clips, which are formed as arms to engage with the cover blocks when the clips are inserted in the ball-circulating grooves to hold the balls. Paired cover plates are respectively mounted on the end faces of the cover blocks, and arm-shaped cover clips are mounted so as to hold the cover plates. The cover plates, the cover blocks, and the guide block are thereby integrally linked.
    Type: Grant
    Filed: June 19, 2012
    Date of Patent: April 7, 2015
    Assignee: SMC Kabushiki Kaisha
    Inventors: Koichiro Ishibashi, Seiji Takanashi, Motohiro Sato, Toshio Sato
  • Patent number: 8985856
    Abstract: The sealing performance by a side seal is improved by changing the sealing function of the side seal for a linear guide apparatus which includes, as constituting components, a seal member, a holder plate that holds the seal member, and a cover (a scraper) depending on its application of the side seal. Plural types of the seal members (1A to 1B) which have a difference in at least any one of the inclination, the material, the thickness, and the tip shape of lips (11a to 11f) are prepared as the seal members. Multiple numbers of the seal members among those seal members are appropriately selected, the same number of the covers and the same number of the holder plates are combined together to assemble the side seal.
    Type: Grant
    Filed: October 19, 2011
    Date of Patent: March 24, 2015
    Assignee: NSK Ltd.
    Inventor: Kazumi Arai
  • Patent number: 8961016
    Abstract: A linear guide apparatus is provided in which an excellent sealing performance is achieved. The linear guide apparatus includes a retainer for retaining plural cylindrical rollers rotatably in a rolling element rolling passage. The retainer includes an opening portion and accommodates for retention of the plural cylindrical rollers in the opening portion. The retainer also includes an endless seal unit surrounding the opening portion. The seal unit includes an inward facing lip inclining toward the inner side of the opening portion and extending toward the guide rail to be in sliding contact with the guide rail. The inward facing lip is formed continuously all around the seal unit. The seal unit includes an outward facing lip inclining toward the outer side of the opening portion and extending toward the guide rail to be in sliding contact with the guide rail, in addition to the inward facing lip.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: February 24, 2015
    Assignee: NSK Ltd.
    Inventors: Takumi Nakagawa, Jun Matsumoto, Kazuhito Nishiyama, Keisuke Tanaka
  • Patent number: 8956047
    Abstract: There is provided a linear guide bearing device, and a seal member used for the same, in which the entry of foreign matter to the inside the slider and leakage of lubricant from the inside of the slider are prevented and the manufacturing costs are reduced. For this end, a linear guide bearing device 1 is configured with multiple seal members (31, 32, 33) arranged in an axial direction of a slider (20) are provided at end portions of a slider (20) so as to slide against rolling element rolling grooves (11) of a guide rail (10). The multiple seal members (31, 32, 33) are provided with: seal main bodies (31a, 32a, 33a) respectively having lip parts (31b, 32b, 33b) sliding against the rolling element rolling grooves (11); and reinforcing members (31c, 32c, 33c) arranged on both daces of the seal main bodies (31a, 32a, 33a), respectively.
    Type: Grant
    Filed: October 19, 2011
    Date of Patent: February 17, 2015
    Assignee: NSK Ltd.
    Inventor: Keisuke Tanaka
  • Publication number: 20150043841
    Abstract: To improve sealability of end portions of under seal in a linear guide apparatus. A seal mechanism of the linear guide apparatus includes under seals and side seals to provide seals between a guide rail and a slider. Auxiliary lip is attached on an inner surface of an end cap and in sliding contact with the guide rail. The auxiliary lip is bent in its middle and covers the end portion of the under seal from two directions. The auxiliary lip includes an axial direction lip and an intersecting direction lip integrally formed with the axial direction lip and continuously extending from an end portion of the axial direction lip.
    Type: Application
    Filed: August 10, 2012
    Publication date: February 12, 2015
    Applicant: NSK Ltd.
    Inventor: Takumi Nakagawa
  • Publication number: 20150010253
    Abstract: A lip portion of an end seal is born against a metallic core to make no interference against an end cap. The metallic core controls deformation of the lip portion to improve the close engagement of the lip portion with a guide rail. The lip portion is composed of an outside lip extending outwards and an inside lip extending inwards of the slider. A root portion where the inside and outside lips are merged together is secured to the metallic core in such a relation that the metallic core bears stress exerted on respective center lines of the outside and the inside lips. The metallic core is composed of a mounting portion having a mounting surface, a bent portion extending widthwise of the slider and biased or deflected more outward of the slider to prevent the lip portion from make any interference with the end cap.
    Type: Application
    Filed: June 5, 2014
    Publication date: January 8, 2015
    Inventor: Yuichi SHIBUYA
  • Patent number: 8894283
    Abstract: A linear guide device includes a guide rail, a slider, and a side seal member attached to an axial direction end part of the slider. The side seal member is formed integrally and has a flat surface facing the guide rail. A clearance between the side seal member and the guide rail is kept the same on a whole of the side seal member, and a thickness in the axial direction of the side seal member is 25 to 140 times the clearance.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: November 25, 2014
    Assignee: NSK Ltd.
    Inventor: Kazuhito Nishiyama
  • Publication number: 20140328553
    Abstract: The present invention provides a re-circulating ball sliding support (10) comprising an elongate rail (20) and a slide cassette (30). The slide cassette (30) includes structure that interacts with the rail (20) to seal the sliding support assembly (10) such that the ingress of dirt into the slide cassette (30) is prevented, and any lubricant for the balls (60) is retained within the slide cassette (30).
    Type: Application
    Filed: August 24, 2012
    Publication date: November 6, 2014
    Applicant: ACCURIDE INTERNATIONAL LIMITED
    Inventors: Jake Edward Taylor, Peter William Bayles
  • Publication number: 20140321777
    Abstract: To provide a side seal capable of preventing the entrance of the foreign matter to the inside of the slider and the outflow of the lubricant without damaging or reducing the original function of the lip, and to provide a linear guide apparatus including the above described side seal. A linear guide apparatus (1) includes a side seal (30) attached to an end of the slider (20) in the axial direction and including a lip portion (33) coming into sliding contact with the guide rail (10). The side seal (30) includes a thin film (40) coming into sliding contact with the guide rail (10) and filling a part of a gap (34) of the lip portion (33).
    Type: Application
    Filed: September 19, 2012
    Publication date: October 30, 2014
    Applicant: NSK Ltd.
    Inventor: Toshio Yoshida
  • Publication number: 20140301677
    Abstract: Provided is a motion guide device capable of suppressing generation of a gap between a first seal member and a second seal member, which are fixed to a moving block, and preventing foreign matters from entering the moving block, to thereby achieve a smooth motion of the moving block with respect to a track rail. The motion guide device includes: a track shaft having a rolling surface; a moving member freely movable along the track shaft; the first seal member that comes into sliding contact with a surface of the track shaft so as to close a gap between the track shaft and the moving member; and the second seal member that is provided along the rolling surface of the track shaft and closes the gap between the track shaft and the moving member.
    Type: Application
    Filed: October 22, 2012
    Publication date: October 9, 2014
    Applicant: THK CO., LTD.
    Inventors: Ryuji Furusawa, Takuya Horie, Satoshi Kashiwagura, Mitsumasa Wada, Shinya Mori, Yuki Nakamura, Yosuke Irie, Masanori Yoshino, Shinya Saito, Teruaki Ooka, Marie Horikawa
  • Publication number: 20140294327
    Abstract: An inside seal is installed to make close contact with a lower surface of a slider to exclude foreign material from circulating circuits, ensuring smooth sliding movement of the slider relative to a guide rail. The inside seal is composed of a major portion made of an elastic member and a metallic core, an elastic lip extending sidewise from a lengthwise side of the major portion across the overall length of the major portion to come into sliding contact with a guide rail, and hooked portions upright at lengthwise ends of the major portion at right angles to the major portion so as to fit into slots on end caps to keep in place the inside seal. Another longitudinal side opposite to the longitudinal side joining with the lip across the flat major portion has elastic edges to come into elastic abutment against the inside wall surface of the end cap, thereby urging the hooked portion towards one side of the slot to keep in place the inside seal.
    Type: Application
    Filed: March 31, 2014
    Publication date: October 2, 2014
    Applicant: NIPPON THOMPSON CO., LTD.
    Inventor: Yoshihiro YOSHIDA
  • Publication number: 20140270601
    Abstract: An anti-skid and positioning linear rail structure includes two rail units, a spacing piece, two teeth plates and two covers, wherein said two rails are disposed in a parallel manner, and a first surface is formed on each side of the rails units facing each other, and center of the first surface has a track, and a plurality of slot holes are disposed axially on the spacing piece, so most rolling units are able to be distributed into the slot holes of the spacing piece, and a receiving space is recessedly formed at central portion of one side of the rail unit. Center portion of the teeth plate has a hinged hole with a plurality of protruding teeth at the periphery thereof, and inner surface of the cover has a shaft stick provided for the hinged hole, and a cut opening is formed at the periphery thereof.
    Type: Application
    Filed: March 18, 2013
    Publication date: September 18, 2014
    Applicant: GMT GLOBAL INC.
    Inventor: Chih-Hsin Chen
  • Patent number: 8821019
    Abstract: A seal (1) for a hydrostatic linear guide with a given adjustment direction (5), with a longitudinal seal section (7, 7?) extending essentially parallel to the adjustment direction (5), and with a transverse seal section (8, 8?) extending essentially transverse to the adjustment direction (5), wherein a first lip seal with a projecting lip portion (12) extends along the longitudinal seal section and a second lip seal with a projecting lip portion (14) extends along the transverse seal section. A height of the projecting lip portion (12) of the first lip seal oscillates in a wave shape in the adjustment direction. With such a seal (1), both a high degree of static oil tightness and also a high degree of dynamic oil tightness are achieved for a hydrostatic linear guide.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: September 2, 2014
    Assignee: Schaeffler Technologies GmbH & Co. KG
    Inventors: Harald Peschke, Wolfgang Bauer, Thomas Gietl
  • Patent number: 8814431
    Abstract: A side seal attached to each of both ends of a slider of a linear guide in a sliding direction and sliding in contact with a guide rail includes: a seal main body formed by shaping an elastic material using a mold and sliding in contact with the guide rail; and a holder for housing and holding the seal main body. A gate burr housing for an elastic-material gate burr of the seal main body is formed in a seal main body holder housing. This eliminates the need of complete cutting or elimination of the elastic-material gate burr of the seal main body, and improves assembling performance. The gate burr housing is formed at a front or rear side of the seal main body housing of the holder, and the elastic-material gate burr of the seal main body is formed at a corresponding portion to the gate burr housing.
    Type: Grant
    Filed: July 25, 2011
    Date of Patent: August 26, 2014
    Assignee: NSK Ltd.
    Inventor: Takumi Nakagawa