Pulley Or Guide Roll Including Circumferential Belt-receiving Groove Patents (Class 474/174)
  • Patent number: 11684436
    Abstract: A surgical robot comprising a surgical robot arm and a surgical instrument. The surgical robot arm terminates at its distal end in a drive assembly comprising a first drive interface element. The surgical instrument comprises a shaft, an articulation attached to the distal end of the shaft, and a driving mechanism at the proximal end of the shaft. The articulation is for articulating an end effector, the articulation driveable by at least a first driving element and a second driving element. The driving mechanism comprises a first instrument interface element to which the first driving element is connected and a second instrument interface element to which the second driving element is connected.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: June 27, 2023
    Assignee: CMR Surgical Limited
    Inventors: Keith Marshall, Steven James Randle
  • Patent number: 11585415
    Abstract: Provided is a continuously variable transmission including: a first pulley including a first fixed sheave fixed to a first rotating shaft and a first movable sheave rotating integrally with the first rotating shaft and is movable along the first rotating shaft; a second pulley including a second fixed sheave fixed to a second rotating shaft and a second movable sheave rotating integrally with the second rotating shaft and is movable along the second rotating shaft; and a transmission belt wrapped around a belt wrapping groove formed on the first pulley and around a belt wrapping groove formed on the second pulley. In a belt track for a minimum gear ratio, surfaces of the first pulley that are in contact with the transmission belt have a lower coefficient of friction relative to the transmission belt than surfaces of the second pulley that are in contact with the transmission belt.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: February 21, 2023
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yu Inase, Keisuke Ninomiya
  • Patent number: 11353064
    Abstract: The present invention relates to a motor vehicle rotary electric machine (100) drive assembly, the drive assembly comprising a rotor shaft (2) extending along a longitudinal axis (X) and a connecting piece (4) providing connection between the shaft and the torque transmission system comprising a bore (41) for the passage of the rotor shaft, the drive assembly being characterized in that the bore comprises a first wall (41a) extending axially and a cylindrical second wall (41b) extending axially in alignment with the first wall, and in that the rotor shaft comprises: —a first surface (21) extending axially and cooperating with the first wall of the bore to centre the connecting piece around the rotor shaft; and—a second cylindrical surface (22) extending axially and provided with knurling, with a diameter (A) greater than the diameter (A?) of the second wall of the bore, the connecting piece being force-fitted onto the rotor shaft by means of the knurling.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: June 7, 2022
    Assignee: Valeo Equipements Electriques Moteur
    Inventors: Jimmy Chaillou, Pierre-Yves Bilteryst, Henri Delianne, David Margueritte, Eric Jozefowiez, Sylvain Perreaut, Mohamed El-Ghazal, Lionel Delecroix, Hubert Debruyne
  • Patent number: 11002056
    Abstract: A pulley stud for a window regulator is provided. The pulley stud having: an upper head portion; a shaft portion; a first mounting portion; and a second mounting portion, wherein the first mounting portion has an anti-rotation portion located on a portion of the periphery of the first mounting portion.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: May 11, 2021
    Assignee: INTEVA PRODUCTS, LLC
    Inventors: Ecevit Demirtas, Gabriel Hazon, Stephane Hemond, Jean-Louis Robalo, Eric Simonneau
  • Patent number: 10794356
    Abstract: A wave power generation device of the present invention includes: a buoy floating on the sea; a power generator generating electrical energy or hydraulic energy; a power transmitter connecting the buoy and the power generator to each other; and a wire having a first end and a second end connected to the buoy or the power transmitter and changing in tension by motions of the buoy.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: October 6, 2020
    Assignee: INGINE INC.
    Inventor: Yong Jun Sung
  • Patent number: 9714700
    Abstract: A pulley for a continuously variable transmission and a method of creating an engineered surface on an outer surface of a pulley of a continuously variable transmission, with the engineered surface engaging with a belt or chain of the continuously variable transmission. The method comprising the steps of: determining an actual engineered roughness (Rpk) on the outer surface needed to obtain a predetermined friction between the engineered surface and the belt or chain; and etching microgrooves in at least a portion of the outer surface to create the engineered surface by employing a laser to etch the microgrooves, the microgrooves being formed to a depth that produces the actual engineered roughness (Rpk).
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: July 25, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Roger L. Briggs, Martin S. Kramer, Ronald P. Buffa, Matthew P. Werner
  • Patent number: 9580953
    Abstract: A window regulator assembly particularly adapted for motor vehicle applications having a pulley assembly featuring snap in insulation of a pulley ring into a pulley housing. The pulley housing features the clearance area and a number of retention tabs and hooks which enable the pulley ring to be snap fit into position. The assembly may be implemented with a discrete window regulator or as part of a modular inner door plate as well as and for other applications.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: February 28, 2017
    Assignee: HI-LEX CONTROLS, INC.
    Inventor: Masayuki Matsushita
  • Patent number: 9338257
    Abstract: Technology is disclosed for enabling scene-based variable compression (“the technology”). In some embodiments, the technology can receive an indication of a compression level for a first content type, wherein the compression level specifies a tolerance level for lossy compression; receive a request for content, the content having at least two portions, wherein a first portion has first content of the first content type and the second portion has second content of a second content type, a first compression method associated with the indicated compression level and a second compression method associated with a different compression level. The technology can transmit the content, wherein the first portion of the content was compressed using the first compression method and the second portion was compressed using the second compression method.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: May 10, 2016
    Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventor: Shmuel Ur
  • Publication number: 20140155210
    Abstract: Construction is achieved by which it is possible definitely prevent the occurrence of creep between a pulley 2b and an outer ring 7f. Trapezoidal shaped concave sections are formed such that the angle of intersection ? between the inside surfaces 23 on both sides of each concave section 17a of knurling 19a of the outer ring 7f is within the range 45°???120°. Moreover, the depth h in the radial direction of the concave sections 17a and the diameter D of the circumscribed circle of the tip end surfaces 22 of the convex sections 18a are regulated so as to satisfy the relationship 0.004 D?h?0.015 D, and the length L in the circumferential direction of the bottom surface 21 of the concave sections 17a is regulated within the range 0.01 D?L?0.03 D.
    Type: Application
    Filed: June 27, 2012
    Publication date: June 5, 2014
    Applicant: NSK Ltd.
    Inventors: Tomoya Ichikawa, Minoru Tahara
  • Patent number: 8702178
    Abstract: The invention provides a trolley wheel assembly for a conveyor system, e.g., an overhead conveyor system. In certain embodiments, the wheel assembly includes at least one wheel face having a contour (optionally a funneling configuration and/or one or more surface features) configured to facilitate flow of a fluid toward an open bearing assembly of the wheel assembly. In some embodiments, the wheel assembly includes an inner race, outer race, and bearings having a particular hardness arrangement, optionally together with a polymer wheel having certain filler features. Methods for cleaning such a trolley wheel assembly are also provided.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: April 22, 2014
    Assignee: Oconomowoc Mfg. Corp.
    Inventors: Scott T. Breyer, Kyle C. Stoehr
  • Publication number: 20130331215
    Abstract: A pulley including a disc defining an annular circumferential groove and also defining a central opening extending axially through the disc. A bearing assembly is disposed in the bearing opening and secured to the disc with a bearing retainer coupled to opposing faces of the disc and securing the bearing assembly in the disc with a plurality of fasteners extending through each of the bearing retainers and each face of the disc fixing the bearing assembly in place without deforming the bearing assembly.
    Type: Application
    Filed: June 8, 2012
    Publication date: December 12, 2013
    Inventor: Dan Hewitt
  • Publication number: 20130079182
    Abstract: A method of manufacturing a pulley system includes spin-forming metal to form an annular wall of a sheave, pressing powdered metal to form a hub of the sheave, and fastening together the annular wall and the hub.
    Type: Application
    Filed: September 21, 2012
    Publication date: March 28, 2013
    Applicant: Briggs & Stratton Corporation
    Inventor: Briggs & Stratton Corporation
  • Patent number: 8327583
    Abstract: A pulley assembly for an overhead counter weight door features a base plate and a support arrangement carried on and spaced from the base plate so that the base and support arrangements face toward one another. A shaft is carried on the base plate and the support arrangement to extend therebetween with a pulley supported on the shaft between the base plate and the support arrangement for rotation about an axis defined by the shaft. A plurality of wall sections extends between the base plate and the support arrangement to establish connection therebetween radially outward from the shaft beyond an outer periphery of the pulley on more than two sides thereof.
    Type: Grant
    Filed: May 5, 2008
    Date of Patent: December 11, 2012
    Assignee: Hanover Door Systems (1996) Inc.
    Inventors: Greg Reimer, Dennis Braun, Richard Klassen, Walter Toews
  • Patent number: 7958635
    Abstract: A process for producing a pulley for a belt drive CVT, including subjecting tapered surfaces of a preform of at least one of input and output pulleys to surface hardening, subjecting the surface-hardened tapered surfaces of the preform to hard turning to form microgrooves radially spaced from one another thereon, between which microprojections are formed, and reducing a height of the microprojections. Alternatively, a process for producing a pulley for a belt drive CVT, including subjecting tapered surfaces of a preform of at least one of input and output pulleys to surface hardening, subjecting the surface-hardened tapered surfaces of the preform to shot peening, and subjecting the shot-peened tapered surfaces of the preform to finishing to form microgrooves having a substantially equal pitch thereon.
    Type: Grant
    Filed: March 23, 2005
    Date of Patent: June 14, 2011
    Assignee: JATCO Ltd
    Inventors: Makoto Yoshida, Yoshiaki Katou, Yasuo Ito
  • Patent number: 7850563
    Abstract: A power transmission mechanism comprising: a flexible power transmission element; a pair of a drive pulley and a driven pulley on which the flexible power transmission element is wound, each the pulley having a pin-embedding hole formed to extend from the outer circumferential thereof toward the center thereof, and a slit elongated in the circumferential direction of the pulley to extend to opposite sides of the embedding hole and communicating with the embedding hole; and a pair of columnar or tapered anchor pins each having a path hole penetrating the anchor pin across the lengthwise direction thereof to receive the flexible power transmission element inserted therein, wherein each the anchor pin receiving the flexible power transmission element in the path hole thereof is embedded in the embedding hole of the associated pulley under pressure, and the flexible power transmission element is thereby held on the pulley.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: December 14, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Makoto Jinno, Toyomi Miyagawa, Shiro Tsukada, Akira Kudo
  • Patent number: 7780556
    Abstract: A belt drive system including an assembly of a heavy-duty drive V-belt 5 and pulleys 2 and 4 reduces noise generating owing to belt travel while ensuring the durability of the pulleys 2 and 4. The surfaces of belt grooves 6 in the V-pulleys 2 and 4 are micro-blasted or burnished so that their surface roughness satisfies the relational expression y??0.9×tp+100, where tp is the load length rate at a given position of a roughness curve indicating the surface features of the groove surfaces in the V-pulleys 2 and 4 and y is the variable (the degree of height) indicating by percentage the ratio of the height from the lowest valley having a maximum depth to the given position to a maximum height Ry.
    Type: Grant
    Filed: March 6, 2006
    Date of Patent: August 24, 2010
    Assignee: Bando Chemical Industries, Ltd.
    Inventors: Hiroyuki Sakanaka, Mitsuhiko Takahashi
  • Patent number: 7699734
    Abstract: An apparatus and method are disclosed for efficiently removing a belt from a drive assembly of an agricultural implement in which a flywheel and a header framework cooperatively define a gap therebetween which is smaller than a cross-sectional dimension of the belt and thereby prevent the belt from being simply passed through the gap and removed from the remaining components of the drive assembly. A radially inwardly extending notch in the periphery of the flywheel is configured and dimensioned to allow a portion of the belt to be received within the notch. The notched flywheel, with the portion of the belt received in the notch, is rotatable such that the portion of the belt is moveable past the gap to thereby permit the belt to be removed from the remaining components of the drive assembly in the distal direction without requiring the removal of either the flywheel or the framework.
    Type: Grant
    Filed: March 13, 2007
    Date of Patent: April 20, 2010
    Assignee: AGCO Corporation
    Inventor: Randy Lohrentz
  • Patent number: 7662058
    Abstract: A bull-wheel for a rope transport installation comprises a hub and a peripheral rim joined to the hub by a metal connecting framework composed of a perforated central disk strengthened by rigidifying arms. The rim is radially subdivided into several circular segments assembled to one another by first fixing members. The hub is fixedly secured to a support enclosure comprising at least one coaxial plate of polygonal cross-section confining at the ends bearing surfaces for the central disk and the radial rigidifying arms assembled by second fixing members. The assembly is arranged so as to distribute the radial forces in the axis of the rope uniformly regardless of the angular position of the bull-wheel when the latter is driven in rotation.
    Type: Grant
    Filed: January 12, 2005
    Date of Patent: February 16, 2010
    Assignee: Pomagalski S.A.
    Inventors: Matteo Marten-Perolino, Franckie Tamisier
  • Publication number: 20090314230
    Abstract: The invention relates to a crankcase breathing system (1) for an internal combustion engine, comprising at least one oil separating apparatus with a preliminary separator (3) and a main separator (4) arranged downstream of the same, with the preliminary separator (3) comprising a diffuser (11) between an inlet (7) and an outlet (8) which expands in the direction of flow. In order to achieve high separation rates in the simplest possible way it is provided that the preliminary separator (3) is arranged integrally with the main separator (4), with preferably the preliminary separator (3) and the main separator (4) forming a separator unit (2).
    Type: Application
    Filed: February 1, 2007
    Publication date: December 24, 2009
    Inventors: Günther Nagenkögl, Robert Roithinger, Robert Pöschl, Helmut Altendorfer, Andreas Schrattbauer, Christof Knollmayr
  • Publication number: 20090291791
    Abstract: A pulley assembly operable in connection with a tensioner assembly is provided for tensioning a belt. The pulley assembly includes one or more elements for sealing the pulley to protect the pulley assembly in harsh environments. For instance, the pulley assembly may include one or more shields for protecting the pulley from contaminants entering the interior of the pulley assembly that can lead to premature failure.
    Type: Application
    Filed: May 22, 2008
    Publication date: November 26, 2009
    Inventors: Christopher Ward, Thomas E. Hughes, Matthew B. Neal
  • Publication number: 20090113865
    Abstract: An apparatus and method are disclosed for efficiently removing a belt from a drive assembly of an agricultural implement in which a flywheel and a header framework cooperatively define a gap therebetween which is smaller than a cross-sectional dimension of the belt and thereby prevent the belt from being simply passed through the gap and removed from the remaining components of the drive assembly. A radially inwardly extending notch in the periphery of the flywheel is configured and dimensioned to allow a portion of the belt to be received within the notch. The notched flywheel, with the portion of the belt received in the notch, is rotatable such that the portion of the belt is moveable past the gap to thereby permit the belt to be removed from the remaining components of the drive assembly in the distal direction without requiring the removal of either the flywheel or the framework.
    Type: Application
    Filed: March 13, 2007
    Publication date: May 7, 2009
    Inventor: Randy Lohrentz
  • Publication number: 20080307782
    Abstract: A drive wheel with an integral fan mountable as a unit to a shaft of a hydraulic power unit for rotation therewith. Fan blades extending from the drive wheel circulate air when the drive wheel is rotated. One or more passageways extending through the drive wheel can be provided to allow air to flow axially therethrough to be circulated around the hydraulic unit. A fan assembly for a hydraulic power unit is also provided including a fan element and a rotatable shroud attached thereto.
    Type: Application
    Filed: June 12, 2007
    Publication date: December 18, 2008
    Applicant: PARKER-HANNIFIN CORPORATION
    Inventors: Xingen Dong, Barun Acharya
  • Patent number: 7410435
    Abstract: A hydraulic pipe mechanism for an industrial vehicle includes a pulley shaft, a plurality of hydraulic hoses and a pulley set. The pulley set is provided on the pulley shaft and has at least first and second hose pulleys that are rotatably supported on the pulley shaft. The first and second hose pulleys are respectively located on sides of the pulley set and each has a guide groove for hooking the hydraulic hose therein. Each of the first and second hose pulleys has a pair of outer and inner flanges that form side walls of the guide groove respectively. Each outer flange is located on the side of the pulley set, and each inner flange is located inside the outer flange in the pulley set. Each outer flange has a first radius, and each inner flange has a second radius. The first radius is larger than the second radius.
    Type: Grant
    Filed: July 27, 2004
    Date of Patent: August 12, 2008
    Assignee: Kabushiki Kaisha Toyota Jidoshokki
    Inventor: Masashige Yoshikawa
  • Patent number: 7300373
    Abstract: A power transmission mechanism comprising: a flexible power transmission element; a pair of a drive pulley and a driven pulley on which the flexible power transmission element is wound, each the pulley having a pin-embedding hole formed to extend from the outer circumferential thereof toward the center thereof, and a slit elongated in the circumferential direction of the pulley to extend to opposite sides of the embedding hole and communicating with the embedding hole; and a pair of columnar or tapered anchor pins each having a path hole penetrating the anchor pin across the lengthwise direction thereof to receive the flexible power transmission element inserted therein, wherein each the anchor pin receiving the flexible power transmission element in the path hole thereof is embedded in the embedding hole of the associated pulley under pressure, and the flexible power transmission element is thereby held on the pulley.
    Type: Grant
    Filed: March 30, 2004
    Date of Patent: November 27, 2007
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Makoto Jinno, Toyomi Miyagawa, Shiro Tsukada, Akira Kudo
  • Publication number: 20070270257
    Abstract: A power transmission system including an integrally molded hub and elastic member, where stress is inhibited from concentrating at the gate marks remaining after integral molding. In a pulley driven by a belt, a plastic pulley side relief section 1a provided at a pocket section of the pulley and a plastic hub side relief section provided on an iron outer ring of the hub engaged at the pocket section whereby power is transmitted from the pulley to the shaft. The hub side relief section and outer ring forming parts of the hub, the iron inner hub to be fastened to the shaft, and the plastic cylindrical part are integrally molded so that the gate mark for plastic injection is formed near to or further to the outer circumference of the outer ring.
    Type: Application
    Filed: May 15, 2007
    Publication date: November 22, 2007
    Applicant: DENSO CORPORATION
    Inventors: Yoshiki Tada, Michiyasu Nosaka, Yasuo Tabuchi, Takushi Kamiya, Takayuki Suzuki
  • Patent number: 7276002
    Abstract: A pulley engageable with a belt for use in a continuously variable transmission includes first and second pulley halves rotatable about an axis and relatively moveable in a direction of the axis. The pulley halves include truncated conical portions symmetrically opposed to each other and outer surfaces which are axially opposed to each other and sloped relative to the axis. The outer surfaces have a circumferential roughness average (Ra,y) measured in a direction (y) circumferential to the axis between approximately 0.15 and 1.0 micrometer. The outer surfaces have a radial roughness average (Ra,x) measured in a direction (x) radial to the axis, and a ratio Ra,x/Ra,y between approximately 0.5 and 2.5.
    Type: Grant
    Filed: October 23, 2003
    Date of Patent: October 2, 2007
    Assignee: General Motors Corporation
    Inventors: Yucong Wang, Beizhi Zhou, Serge V. Guillot, Robert J. Porter, Sohail A. Khan, Chester N. Grant
  • Patent number: 7070170
    Abstract: A cable sheave for cableway systems has a hub and a sheave surface extending outwardly from the hub. The sheave surface may be formed of spokes and a cable groove is formed on its periphery. Fastening devices are provided in the sheave surface for rigidly connecting at least two sheave parts to one another to form the complete cable sheave. The parting line(s) is located outside the hub. Here, a first cable sheave part containing the hub and forming the central region of the cable sheave is provided, and at least two further, second cable sheave parts are provided, which parts are of identical size, radially surround the first cable sheave part, are connected rigidly to the first cable sheave part and to the at least one second cable sheave part which is present and by means of which the cable groove is formed.
    Type: Grant
    Filed: December 20, 2004
    Date of Patent: July 4, 2006
    Assignee: Innova Patent GmbH
    Inventor: Norbert Häfele
  • Patent number: 6881166
    Abstract: A pulley consists of a pulley basic body which has a cylindrical outer circumferential surface. Sitting on this cylindrical outer circumferential surface is a tire which is of sandwich-like design with regard to its radial extent. This results in a plurality of rings concentric to one another. The ring which is furthest on the inside in the radial direction and the ring which is furthest on the outside in the radial direction are in each case elastomeric rings, whereas a reinforcing ring is located between them. The elastomeric outer ring is harder than the elastomeric inner ring, so that a very abrasion-resistant surface is achieved, over which the rope runs, whereas the elastomeric inner ring provides for adequate resilience. The reinforcing ring is provided in order to distribute the rope load as uniformly as possible over the elastomeric inner ring.
    Type: Grant
    Filed: April 9, 1999
    Date of Patent: April 19, 2005
    Assignee: Wilhelm Kaechele GmbH Elastomertechnik
    Inventors: Georg Burkhardt, Bruno Kaechele
  • Publication number: 20040266574
    Abstract: A power transmission mechanism comprising: a flexible power transmission element; a pair of a drive pulley and a driven pulley on which the flexible power transmission element is wound, each the pulley having a pin-embedding hole formed to extend from the outer circumferential thereof toward the center thereof, and a slit elongated in the circumferential direction of the pulley to extend to opposite sides of the embedding hole and communicating with the embedding hole; and a pair of columnar or tapered anchor pins each having a path hole penetrating the anchor pin across the lengthwise direction thereof to receive the flexible power transmission element inserted therein, wherein each the anchor pin receiving the flexible power transmission element in the path hole thereof is embedded in the embedding hole of the associated pulley under pressure, and the flexible power transmission element is thereby held on the pulley.
    Type: Application
    Filed: March 30, 2004
    Publication date: December 30, 2004
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Makoto Jinno, Toyomi Miyagawa, Shiro Tsukada, Akira Kudo
  • Publication number: 20040224807
    Abstract: The specification discloses a pulley assembly including a spun-formed pulley and a bearing secured within the pulley. The bearing is secured using any combination of press-fitting, adhering, coining, or peening. A manufacturing method also is disclosed.
    Type: Application
    Filed: June 4, 2004
    Publication date: November 11, 2004
    Inventors: Bradley D. Miller, Jeremy J. Gauthier
  • Publication number: 20040220005
    Abstract: A method and apparatus for a pulley assembly comprises a pulley rim defining a cylinder having a thickness of less than about 0.031 inch. The pulley rim is configured from a rectangular shaped planar sheet of metal that is annularly shaped and welded at longitudinal ends defining opposite edges thereof aligned with each other and secured together using a high-energy weld. At least one hub is configured for press fit engagement at least partially within the cylinder defined by the rim and is further configured to receive a shaft therethrough.
    Type: Application
    Filed: May 1, 2003
    Publication date: November 4, 2004
    Inventor: Howard McGrath
  • Publication number: 20030216206
    Abstract: A pulley comprises a disk and an insert. The insert is fitted into the center of the disk integrally. Linear expansion coefficient of the disk is larger than the same of the insert. A concavity is formed on a periphery surface of the insert so that both side surfaces of the concavity are slanted outwardly, i.e. a distance between the side surfaces become large in proportion to being far from the centerline of the insert. When a slanting angle is defined as an angle between the side surface and a line which is perpendicular to the centerline of the insert on a plane including the centerline of the insert, the slanting angle is set from ten degrees to forty-five degrees, preferably from fifteen degrees to forty-five degrees. The disk is made of synthetic resin such as phenol resin, and the insert is made of metal such as iron.
    Type: Application
    Filed: March 25, 2003
    Publication date: November 20, 2003
    Applicant: TOYODA KOKI KABUSHIKI KAISHA
    Inventors: Hiroyuki Takahashi, Atsushi Kosaka
  • Publication number: 20030098214
    Abstract: The over-running clutch pulley of a preferred embodiment of the invention includes a sheave member, a hub member located substantially concentrically within the sheave member, a spring member, and a stop surface, which cooperate to rotationally engage an input device and an output device. The sheave member preferably includes a sheave input section adapted to the engage the input device, and a sheave clutch section defining a sheave clutch surface. Similarly, the hub member preferably includes a hub output section adapted to engage the output device, and a hub clutch section defining a hub clutch surface. The stop surface functions to engage the spring member and to transfer some torque from the sheave member to the hub member during the acceleration of the sheave member in the first rotational direction relative the hub member.
    Type: Application
    Filed: November 29, 2001
    Publication date: May 29, 2003
    Inventors: Barry C. Titus, Randall King, Jared I. Taketa, Russell E. Monahan
  • Publication number: 20030008743
    Abstract: A fan idler pulley having a threaded hub for attaching a fan shaft. The pulley also comprises a receiving portion for engaging a bearing. The bearing is further engaged with a cup. The entire assembly is mounted by a pin press fit though the cup into a mounting surface such as an engine block or front cover. The pulley may be engaged to either the inner race or the outer race of the bearing.
    Type: Application
    Filed: July 2, 2002
    Publication date: January 9, 2003
    Inventors: Marc R. Cadarette, Yahya Hodjat, Michel Ozorak, Hao Tran
  • Publication number: 20030008741
    Abstract: A pulley is provided with first and second disks each having an outer surface and an inner surface, and a center hole with a center axis. Each disk has a hub formed at its center hole that extends outwardly from the disk outer surface. The inner side of each disk has a drive surface and a connection surface extending around its respective center hole. The connection surface is perpendicular to the center axis and the drive surface is angled relative to the connection surface to form the outer surface of each disk with a generally concave shape. The connection surfaces of the first and second disks are abutted and secured together using a fastening mechanism. The disks are arranged where the drive surfaces form an annular groove around the hubs and the hubs of each disk are aligned concentrically with the groove.
    Type: Application
    Filed: August 23, 2002
    Publication date: January 9, 2003
    Inventors: Richard J. Fadler, Loren A. Ahaus, Jeffrey K. Leicht
  • Patent number: 6488604
    Abstract: V-belt pulley comprising an outer rim (2) provided with at least one V-belt groove (7) formed by turning, said groove (7) having a bottom (9) provided with a plurality of radially through-going and circumferentially interspaced openings (8). The pulley is cast with a rim (2) having a radially inwardly facing surface (4) is provided with a plurality of circumferentially interspaced recesses (5) of such a radial depth that the radially through-going openings are formed by the turning thereof.
    Type: Grant
    Filed: March 20, 2001
    Date of Patent: December 3, 2002
    Assignee: Vald.Birns Maskinfabrik A/S
    Inventor: Valdemar R. Birn
  • Publication number: 20020060117
    Abstract: Providing a pulley unit with a reduced diameter, stable operating characteristics, and that is simple and readily removable from an engine is accomplished by a one-way clutch disposed between a pulley and a shaft body that are concentrically arranged. A shaft defines a shaft attachment space at a position which is not overlapped by rollers contained in the one-way clutch in an axial direction. The shaft body is attached to the shaft at the shaft attachment space. The shaft body, disposed inside the rollers in a radial direction, does not have a through hole, but rather, has a non-through structure.
    Type: Application
    Filed: November 19, 2001
    Publication date: May 23, 2002
    Applicant: DENSO CORPORATION
    Inventors: Shigenobu Nakamura, Akihiro Mizutani
  • Patent number: 6379275
    Abstract: The invention comprise a continuously variable transmission pulley. The pulley comprises at least one axially moveable sheave section which is coaxial with a second sheave section. Each sheave section has a series of radial grooves which are axially and radially aligned. The radial grooves are arranged in pairs between each sheave section. The belt blocks span between the sheave sections, each having opposing arcuate ends that slidingly engaging a pair of grooves. The belt blocks are arranged circumferentially about an axial sheave centerline. Each belt block also has a surface for receiving a multi-ribbed belt. At least one elastic member encircles the belt blocks so as to control their relative positions, keeping them in contact with the sheave grooves as the pulley rotates. As the movable sheave is moved axially, each belt block moves radially within its respective grooves so as to increase or decrease the effective diameter of the pulley.
    Type: Grant
    Filed: November 18, 1999
    Date of Patent: April 30, 2002
    Assignee: The Gates Corporation
    Inventor: Alexander Serkh
  • Patent number: 6371448
    Abstract: A traction sheave for driving synthetic fiber ropes, preferably of an elevator installation, ensures a consistently good selected tractive capacity that is largely independent of external influences which reduce friction. At least part of the rope running surface on the traction sheave is provided with a selected roughness grade of N7 to N12. The selected roughness grade on the running surface is formed either by mechanical machining or by use of a suitable coating, preferably a plasma coating of corundum. For example, only the bed of the rope groove, the area of the flanks of the rope groove, or a wide area of the surface of the rope groove can be of the selected roughness grade. By correspondingly suitable arrangement of these differently formed rope grooves on the traction sheave, a desired tractive behavior can be systematically effected.
    Type: Grant
    Filed: October 11, 2000
    Date of Patent: April 16, 2002
    Assignee: Inventio AG
    Inventor: Claudio De Angelis
  • Patent number: 6254503
    Abstract: A pulley for use with an endless metal belt, including pulley halves rotatable about an axis. The pulley halves include truncated conical portions symmetrically opposed to each other and outer surfaces disposed on the truncated conical portions so as to be engageable with the belt. The outer surface of each pulley half has a centerline average roughness (Ra) of 0.1 to 0.5 &mgr;m, a Vickers hardness (Hv) of not less than 850 at a load of 200 g, and a microstructure with random fine irregularities in which a great number of recesses and projections are randomly located. A continuously variable transmission including the pulley is also disclosed.
    Type: Grant
    Filed: October 29, 1999
    Date of Patent: July 3, 2001
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Nobutaka Chiba, Makoto Yoshida, Toshikazu Nanbu
  • Patent number: 6243956
    Abstract: A drive wheel for off-center drive of an annular saw blade in a cutting machine, consists of at least two components, which are separable but held together during operation, namely a holding disc and a drive ring, the latter having an encircling drive groove for the inner edge of the saw blade, the drive ring being arranged radially outside a central portion of the holder disc.
    Type: Grant
    Filed: December 9, 1999
    Date of Patent: June 12, 2001
    Assignee: Aktiebolaget Electrolux
    Inventors: Dan Nilsson, Ove Donnerdal, Håkan Larsson
  • Patent number: 6068241
    Abstract: Disclosed is a pulley that comprises a metal bearing with an elastomeric material on its outer rim molded into a polymeric wheel, where the coefficient of thermal expansion of the polymeric wheel is at least 1.0.times.10.sup.-6 cm/cm/.degree.C. greater than the coefficient of thermal expansion of the metal bearing. The pulley is made by applying an elastomeric material to the outer edge of the metal bearing and molding the polymeric wheel around it. The use of the elastomeric material prevents slippage between the metal bearing and the polymeric wheel.
    Type: Grant
    Filed: December 14, 1998
    Date of Patent: May 30, 2000
    Assignee: Occidental Chemical Corporation
    Inventor: Leon G. Meyer
  • Patent number: 5967925
    Abstract: An accessory drive system for an internal combustion engine includes a multi-ribbed belt and pulley system. Shear generators are machined, formed or molded and extend axially from the driving pulley's faces such that the shear generators expand the drive belt in a plurality of regions. The shear generators are formed as either spheroids projecting into the V of the V-pulley such that the spheroids extend from two faces of adjacent grooves at approximately the midpoint between the root and apex of the V, or as shifted circumferential grooves of a multi-ribbed pulley having a continuous wave pattern. These shear generators cause a plurality of localized high tension regions at the highest pressure zone of the belt/pulley friction interface, improving circumferential friction, and therefore torque capacity, with minimal effect on belt wear due to their smoothness.
    Type: Grant
    Filed: March 30, 1998
    Date of Patent: October 19, 1999
    Assignee: Ford Global Technologies, Inc.
    Inventor: Richard John Meckstroth
  • Patent number: 5415593
    Abstract: A drive power transmission element in which a wheel has a peripheral surface provided with a unique groove structure for receiving a power transmission element such as a drive belt, rope, cable, or other compressible element. The wheel is provided with a groove having a particular configuration in the shape of a trochoidal curve. Since the compressible element or belt is of a compressible material, the drive belt or compressible element will be compressed into the groove of the drive wheel so that it is driven by compression of the belt or element, not friction.
    Type: Grant
    Filed: May 24, 1993
    Date of Patent: May 16, 1995
    Inventor: Frederic Mathews
  • Patent number: 5413535
    Abstract: Vibrations of the camshaft or crankshaft of a combustion engine are damped between a composite pulley which receives torque from the engine and one or more sheaves which are driven by an endless flexible member and serve to transmit torque to a pump, a blower, a compressor, a steering wheel mechanism and/or an alternator. The endless flexible member exhibits a certain amount of elasticity and the composite pulley comprises a rotary input device which is driven by the engine and a hollow rotary wheel which has a circular radially inner portion in rolling contact with the periphery of the input device. The outer diameter of the input device is smaller than the inner diameter of the wheel. The latter performs pendulum movements in response to changes in the length of the elastic flexible member.
    Type: Grant
    Filed: April 18, 1994
    Date of Patent: May 9, 1995
    Assignee: Luk Lamellen und Kupplungsbau GmbH
    Inventor: Wolfgang Reik
  • Patent number: 5361883
    Abstract: An electromagnetic clutch includes a rotor assembly constituted by a pulley portion and a rotor portion. The pulley portion has a pulley portion on an outer circumferential side, is axially supported on a driven shaft to be rotatable, and is designed to receive a driving force from a driving shaft. The rotor portion has an armature on a side of the driving shaft. The armature is selectively friction-engaged by magnetic attraction. The rotor portion of the rotor assembly is formed by casting to have an uneven surface shape constituted by a plurality of projections on its outer circumferential surface. The synthetic resin pulley portion is integrally coupled to the outer circumferential surface of the rotor portion by insert molding.
    Type: Grant
    Filed: March 14, 1994
    Date of Patent: November 8, 1994
    Assignee: Ogura Clutch Co., Ltd.
    Inventor: Tetsuo Yamamoto
  • Patent number: 5352156
    Abstract: A sheave which can be connected to the output shaft of an internal combustion engine in a motor vehicle has a rotary input element, an output element which is coaxial with and rotatable relative to the input element and is provided with a rim for one or more endless belts or chains, one or more bearings between the input element and the output element, a damping unit which opposes rotation of the two elements relative to each other, and an inertial damper which is connected between the output shaft and the input element. The inertial damper has a ring-shaped mass which is at least partially surrounded by and is closely adjacent the rim. The rim, the inertial damper and the damping unit are interfitted in the axial direction of the sheave to contribute to compactness of the sheave.
    Type: Grant
    Filed: August 4, 1992
    Date of Patent: October 4, 1994
    Assignee: LuK Lamellen und Kupplungsbau GmbH
    Inventors: Peter Klein, Stefan Valtwies
  • Patent number: 5203826
    Abstract: A flywheel has a hub with a plurality of blades secured to said hub and extending away therefrom. A plurality of ribs are secured to the blades to form a protective enclosure which rotates with the blades. The ribs are spaced apart a distance selected to inhibit insertion of the user's fingers thereinbetween.
    Type: Grant
    Filed: June 10, 1992
    Date of Patent: April 20, 1993
    Assignee: Proform Fitness Products, Inc.
    Inventor: William T. Dalebout
  • Patent number: 5049115
    Abstract: Pulley for driving the shaft of a water pump, especially a pump for the cooling system of an internal combustion engine, the shaft being designed to be integral with a pulley body carrying the rim of the pulley, characterized in that the rim (15, 25, 31, 37) is designed as a sleeve and is attached to the pulley body (13, 22, 29, 39) in a form-locking or friction-locking manner.
    Type: Grant
    Filed: May 23, 1990
    Date of Patent: September 17, 1991
    Assignee: SKF GmbH
    Inventors: Heinrich Kunkel, Horst Ernst, Roland Haas, Gerhard Herrmann, Peter Horling, Elmar Mause, Gunter Neder, Armin Olschewski, Robert Stolz, Leo Vogelsanger, Manfred Brandenstein
  • Patent number: 5021034
    Abstract: A pulley construction, drive system utilizing the pulley construction and method of making the pulley construction are provided, the pulley construction being utilized with an endless drive belt and comprising a body member having a peripheral groove therein for receiving part of the belt therein and having a securing unit, and a hub member having a securing unit secured to the securing unit of the body member so as to hold the members in aligned assembled relation to rotate in unison, the hub member having structure for being interconnected to a shaft so that the pulley construction and the shaft will be adapted to rotate in unison, the securing units are so constructed and arranged that the securing unit of one of the members has a part thereof that is adapted to break away from the one member under a certain normal driving force of the belt when the shaft is prevented from rotating so as to permit relative rotational movement between the members while the securing units maintain the thus relatively rotatab
    Type: Grant
    Filed: December 22, 1989
    Date of Patent: June 4, 1991
    Assignee: Dayco Products, Inc.
    Inventor: Michael E. Allen