Including Plural, Coaxial, Circumferential Belt-receiving Grooves Patents (Class 474/168)
  • Patent number: 9758358
    Abstract: The present invention relates generally to rope drives working with high-strength fiber ropes such as crane hoists, boom adjustment gear, trolley traveling gear, etc. The invention in this respect in particular applies to hoist drums for the rope hoist winch of such a fiber rope drive having a drum jacket body which is provided with grooving at the peripheral side and having two guard plates adjacent to the drum jacket body at the end sides. The invention further relates to a rope pulley for such a fiber rope drive having a rotatably supported pulley body whose jacket surface has at least one rope groove. In accordance with the invention, the rope grooves have a flat-pressed, round groove contour which differs from the circular and which has a larger radius of curvature in the region of the groove base than in the region of the groove flanks adjacent thereto.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: September 12, 2017
    Assignee: Liebherr-Components Biberach GMBH
    Inventors: Ilaka Mupende, Horst Zerza
  • Publication number: 20150148162
    Abstract: A transmission pulley, for a power transmission system including a belt having longitudinal grooves, having at least one end cap, a stack (E) of identical crowns, as well as means of connecting the crowns and the cap, parallel to a rotational axis (X10) of the pulley and rotating about this axis. The cap defines a hollow housing wherein half of the adjacent crown is engaged on one side of a median plane of the crown.
    Type: Application
    Filed: November 28, 2014
    Publication date: May 28, 2015
    Inventors: Charles Chambonneau, Samuel Viault
  • Publication number: 20150141184
    Abstract: A belt-driven starter-generator includes a rotary shaft, and a pulley belt coupled on an outer peripheral surface of the rotary shaft. A key is press-fitted into a pocket formed between the rotary shaft and the pulley belt so as to fix the rotary shaft to the pulley belt. A coupling member is coupled to a thread formed on the outer peripheral surface of the rotary shaft so as to support one side of the pulley belt. Operational reliability and assembly convenience may be improved by the belt-driven starter-generator of the present disclosure.
    Type: Application
    Filed: November 20, 2014
    Publication date: May 21, 2015
    Inventor: Hyun Soo YU
  • Publication number: 20140357439
    Abstract: A structural or support ring for an overmolded pulley, the ring placed between a bearing and outer radial surface of the pulley, providing structural support across a width of the pulley.
    Type: Application
    Filed: May 20, 2014
    Publication date: December 4, 2014
    Applicant: Schaeffler Technologies GmbH & Co. KG
    Inventor: Peter Schaefer
  • Patent number: 8863906
    Abstract: A counterweight and an elevator car are suspended on a set of hoisting ropes. The elevator comprises one or more rope pulleys provided with rope grooves, one of said pulleys being a traction sheave driven by a drive machine and moving the set of hoisting ropes. At least one of the rope pulleys has against the hoisting rope a coating adhesively bonded to the rope pulley and containing the rope grooves, said coating having an elasticity that is greater in the edge portions of the rope groove than at the bottom of the rope groove. In a preferred solution, the traction sheave is a rope pulley like this.
    Type: Grant
    Filed: April 22, 2003
    Date of Patent: October 21, 2014
    Assignee: Kone Corporation
    Inventors: Jorma Mustalahti, Esko Aulanko
  • Patent number: 8092326
    Abstract: In a motor generator pulley 122, a mechanical clutch 105 and a switching unit 132 are provided such that the mechanical clutch 105 is interposed between a first power transmission unit 104A and a second power transmission unit 104B and can transmit power even when an engine 102 serves as a drive element and a motor generator 103 serves as a drive element and when the motor generator 103 serves as the drive element and the engine 102 serves as the driven element, and that the switching unit 132 can switch, when at least one of the engine 102 and the motor generator 103 serves as a drive element, the mechanical clutch 105 so as to inhibit the engine 102 and the motor generator 103 from being connected to each other.
    Type: Grant
    Filed: May 13, 2009
    Date of Patent: January 10, 2012
    Assignee: Honda Motor Co., Ltd.
    Inventors: Hirokatsu Amanuma, Yasuaki Hotozuka
  • Patent number: 7993227
    Abstract: A hub for use in a power transmission apparatus comprises cylindrical portion 81 and outer ring 83 including a plurality of tongue-like reinforcing portions 83c each protruded radially inward from the peripheral end of the corresponding one of the plurality of protrusions 83b. When the distance from point C where the rear-side end surface of the cylindrical portion 81 and hub-side engaging portion 85 are connected with each other, to rear-side end surface D of reinforcing portions 83c is given a, and the distance from rear-side end surface D of reinforcing portions 83c to radially innermost front-side portion E is given b, distance b is less than one half of distance a.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: August 9, 2011
    Inventors: Keiji Ishikawa, Yasuo Tabuchi, Michiyasu Nosaka, Motohiko Ueda, Takayuki Suzuki, Yoshiki Tada
  • Publication number: 20100190597
    Abstract: A pulley for the production of a belt drive, in particular for driving deceleration wheels, conveying wheels and acceleration wheels in cableway systems, is formed in its central region with a hub for connecting it to a drive shaft and at its periphery with an annular belt surface, in particular a groove, for a drive belt or the like. The pulley consists of sheet steel and the belt surface provided on its periphery thereof is produced by splitting the rim of the pulley.
    Type: Application
    Filed: December 17, 2009
    Publication date: July 29, 2010
    Applicant: Innova Patent GmbH
    Inventor: G√úNTHER FINK
  • Publication number: 20080305904
    Abstract: A cushion ring is provided between a transmission shaft and a transmission wheel's sleeve. The cushion ring has a number of centripetal teeth, thereby forming a number of chambers around the cushion ring. Inside each chamber, there is a slope section slanting towards an adjacent first tooth, and there is a spring element pressing a ball (or cylinder) against the slope section and the first tooth. The diameter of the ball or cylinder is such that it stands on the slope section to be slightly beyond the teeth and contacts an outside surface of the transmission shaft. As such, when the engine is ignited and a jitter causes the transmission shaft to turn in a reversed direction, the balls and cylinders are rolled towards the spring elements and the rotational force is thereby absorbed by the spring elements.
    Type: Application
    Filed: February 19, 2008
    Publication date: December 11, 2008
  • Patent number: 7448972
    Abstract: The system includes at least one transmission belt for coupling the shafts of auxiliary devices to a pulley which can be coupled for operation to the shaft of the combustion engine, and an electromagnetically operated clutch between this pulley and the shaft of the engine. An overrunning clutch is interposed between the pulley and the shaft of the engine. The clutch is normally disengaged and de-energized. The pulley has a hub fitted on an extension of the shaft of the engine with the interposition of the overrunning clutch, and has a channel-shaped cross section with a concavity facing the internal combustion engine. The electromagnetically operated clutch comprises a winding which is fixed to the engine and which extends into the concavity of the pulley, and a ferromagnetic ring carried in an axially translatable way by a support element fixed with respect to rotation to the extension of the shaft of the engine.
    Type: Grant
    Filed: November 4, 2004
    Date of Patent: November 11, 2008
    Assignee: CRF Societa Consortile Per Azioni
    Inventors: Marco Garabello, Domenico Mesiti, Dario Caenazzo
  • 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
  • Publication number: 20080153646
    Abstract: A method of manufacturing a non-circular drive element includes the steps of providing a hub having a non-circular profile. A ring is provided having a generally circular profile. An outer surface of the ring has a drive configuration. The ring is force fitted over the hub in a manner that transfers the non-circularity of the hub to the ring. Additionally, a drive element has a hub having a non-circular profile and a circular ring force fitted over the hub.
    Type: Application
    Filed: August 10, 2005
    Publication date: June 26, 2008
    Inventor: Kin Lam
  • Patent number: 7204774
    Abstract: In one-piece combination, a drive pulley and belt guide for a belt-driven machine. The pulley has a belt-driving section configured for engagement by the belt and a belt-guiding section integral with the belt-driving section. The belt-guiding section has a conically-tapering external surface and an internal surface which is substantially free of reinforcing members and defines a hollow, cup-shaped interior free from structure within the interior.
    Type: Grant
    Filed: May 17, 2004
    Date of Patent: April 17, 2007
    Assignee: Emerson Electric Co.
    Inventors: L. Ranney Dohogne, Robert E. Wehrheim, Mark A. Fry, Walter A. Stribling
  • Publication number: 20040166974
    Abstract: A crankshaft damper and a method of crankshaft damper assembly using interlocking beads. A crankshaft damper having a hub portion and pulley ring and an elastomeric member disposed in an annular space between them is clamped in a tool after initial assembly. A tool having jaw teeth on oppositely disposed, cooperating jaws engages the crankshaft damper hub portion and pulley ring on either side of the elastomeric member. The tool jaws press on the hub portion and pulley ring to create beads or crimps on the hub portion and the pulley ring. The beads or crimps are formed in cooperating groups or sets. They press the elastomeric member into the form of a curve or wave. The curve or wave mechanically locks the hub portion and pulley ring together, thereby locking the elastomeric member in place between them.
    Type: Application
    Filed: February 21, 2003
    Publication date: August 26, 2004
    Inventor: Yahya Hodjat
  • 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
  • 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: 20020058560
    Abstract: In a fixing structure of a pulley unit in which the pulley unit is attached to a part from which a rotary shaft that is inserted into and is rotatably supported by a central hole of a housing protrudes in a state where the rotary shaft is protruded from an end face of the housing, a housing side end portion of the pulley unit is inserted into an opening side area in the central hole of the housing so that an outer peripheral face of the housing side end portion of the pulley unit overlays an inner peripheral face of the opening side area in the central hole of the housing in a shaft center direction.
    Type: Application
    Filed: October 25, 2001
    Publication date: May 16, 2002
    Applicant: Koyo Seiko Co., Ltd.
    Inventor: Hideki Fujiwara
  • Patent number: 6139457
    Abstract: A sheet metal pulley has a base part and a cylindrical peripheral wall for winding a belt formed integrally with the base part. An ear is disposed in an end part of the cylindrical peripheral wall. The base part is partitioned into an inner peripheral portion and an outer peripheral portion, with the inner peripheral portion being smoothly connected with the outer peripheral portion through a bent part. The outer peripheral portion is formed into a tapered shape which extends from the bent part and has a diameter which is increased toward the inner side of the cylindrical peripheral wall in the axial direction of the pulley. The outer peripheral portion connected with an end part of the peripheral wall on the side of the ear. Even when the pulley is used for a long term, the connecting portion between the peripheral wall and the base part, etc. is hardly cracked.
    Type: Grant
    Filed: October 11, 1995
    Date of Patent: October 31, 2000
    Assignee: Kabushiki Kaisha Kanemitsu
    Inventors: Toshiaki Kanemitsu, Kazuyuki Oda
  • Patent number: 6071205
    Abstract: A multi-stepped pulley, and a method and apparatus for manufacturing the same, wherein the mechanical strength is increased while keeping down an increase of mass and a rise of manufacturing costs by pressing against portions of a surface of a hollow metal material having a circular cross-section corresponding to a connection portion of a plurality of pulleys by pressing rollers and simultaneously crushing the material in an axial direction so as to integrally form first and second rims, first and second webs, and a connection portion thereof.
    Type: Grant
    Filed: May 13, 1998
    Date of Patent: June 6, 2000
    Assignee: Denso Corporation
    Inventors: Tetuo Ohno, Hiroshi Shohara, Yasuji Kasuya, Yasuo Tabuchi, Masahiro Kinoshita
  • 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: 5792294
    Abstract: A sheave liner for an elevator system sheave that supports a hoist rope with an elevator car suspended therefrom is replaced without having to remove the hoist ropes and without having to hang the elevator car by means other than the hoist ropes. The existing liner is cut and removed while the elevator car is suspended from the hoist ropes resting on the sheave. The new liner is rotated into its position and two ends of the liner are joined by either a mechanical bond or by a room temperature adhesive bond.
    Type: Grant
    Filed: November 16, 1995
    Date of Patent: August 11, 1998
    Assignee: Otis Elevator Company
    Inventors: John Randazzo, John D. Barrett, Christopher J. Elliott, David W. McKee, Hugh J. O'Donnell, John P. Wesson, Blair J. Cohen
  • Patent number: 5704862
    Abstract: This invention relates to dual-sided multi-ribbed power transmission belts having a plurality of longitudinally extending, transversely spaced alternating ribs and grooves with the ribs having a distance between their midpoints of a pitch P on both sides of the belt. The grooves on opposite sides of the belt are transversely offset from each by a distance of P/2.
    Type: Grant
    Filed: January 13, 1997
    Date of Patent: January 6, 1998
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Michel Leroy Janne, Steven Mark Anderson
  • Patent number: 5626532
    Abstract: A drive assembly for rotating a shaft of a pulley-driven device is disclosed together with a method of making the drive assembly. The method includes the steps of forming a pulley of lightweight non-ferrous metal having a web portion, forming a radially inward portion of the web portion into an axially extending annular portion, mounting a connecting ring of ferrous metal having an annular groove in an interior end surface thereof over the axially extending portion of the web portion so that a free end of the axially extending portion extends adjacent the annular groove, cold-forming the free end to fill the annular groove, welding a hub of ferrous material to the connecting ring and machining a central axial bore through the web portion and the axially extending portion thereof and the hub.
    Type: Grant
    Filed: September 5, 1995
    Date of Patent: May 6, 1997
    Assignee: Tesma International Inc.
    Inventor: Zdenek Cerny
  • Patent number: 5527227
    Abstract: A pulley is made from a metal plate which is easy to manufacture, inexpensive in manufacturing cost, light weight and sufficient strength by using a press forming technique. The pulley has a thin tubular boss portion and a disk shaped body portion which are integral. The boss portion may have a reinforcing flange at one open end portion. The reinforcing flange aids in providing sufficient strength against the tightening force of a nut which is screwed onto a shaft inserted into the boss portion, and also disperses the tightening force. Further, the pulley may have formed integrally on the boss portion a key member.
    Type: Grant
    Filed: October 31, 1994
    Date of Patent: June 18, 1996
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Tomohito Asai, Toru Isono, Nobuaki Funahashi
  • Patent number: 5338264
    Abstract: A sheave is provided with a compliant contact surface such that the sheave is suitable for use with a leaf chain in applications in which the leaf chain is subjected to more than simply a straight tensile pull. Since the sheave contact surface is compliant, any chain leaves that protrude inwardly against the sheave will embed themselves, thus allowing any non-protruding leaf edges to come into contact with the sheave and share the load. In a preferred embodiment, compliancy of the contact surface is obtained by providing a plurality of closely spaced parallel grooves on at least those parts of the contact surface that contact the chain.
    Type: Grant
    Filed: July 31, 1992
    Date of Patent: August 16, 1994
    Assignee: Lift-U, Division of Hogan Mfg., Inc.
    Inventor: Dale Kempf
  • Patent number: 5147249
    Abstract: A power transmission multi-groove sheave and method of manufacturing such sheave wherein each of the grooves of the multi-groove sheave incorporate critical dimensions to make it adaptable for use with any of several commercially known multi-groove sheaves and belt sets therefor, the multi-groove sheaves having differing proximal critical dimensions including those relating to the side wall angles of slope, the top and bottom widths, the normal depths, and the spacing between width centers of adjacent grooves.
    Type: Grant
    Filed: August 26, 1991
    Date of Patent: September 15, 1992
    Assignee: Emerson Electric Co.
    Inventors: Michael L. Lewis, Paul G. Kurre, George B. Day, Daniel G. Fannin, Roland C. Thomas
  • Patent number: 5113584
    Abstract: The hub part of a flat disk is clamped between the jaws of a chuck and a protruding circumferential part is formed against the chuck by a roller so that the formed material is distributed axially off-center with respect to the hub part. The formed material is then flattened by a further roller to form a cylindrical preform which is likewise axially off center with respect to the hub part. The preform is formed by a last roller to provide a circumferential area with a final profile for guiding a belt.
    Type: Grant
    Filed: February 4, 1991
    Date of Patent: May 19, 1992
    Assignee: Leifeld GmbH & Co.
    Inventor: Helmut Wenzel
  • Patent number: 5112933
    Abstract: An ether-based polyurethane article comprises a toluene diisocyanate-terminated polyether polyol prepolymer cured with a blended polyester polyol/diamine curative. The article may be made by mixing a toluene diisocyanate-terminated polyether polyol prepolymer with a blended polyester polyol/diamine curative to form a reaction mixture. A suitably shaped mold is preheated and filled with the reaction mixture with sufficient pressure to displace air in the mold. The reaction mixture is held in the preheated mold to cure the reaction mixture and form the article. The cast article is removed from the mold and post-cured to complete the chemical cross-linking reaction.
    Type: Grant
    Filed: April 16, 1991
    Date of Patent: May 12, 1992
    Assignee: Otis Elevator Company
    Inventors: Hugh J. O'Donnell, Vincent J. Gajewski, Knizley James B., Richard L. Palinkas, Ronald O. Rosenberg
  • Patent number: 4874973
    Abstract: An electromagnetic clutch includes a clutch rotor and an annular electromagnet. The clutch rotor has a rotor which sectional side view is a U-shaped configuration and a pulley mounted at an outer peripheral surface of the rotor. The annular electromagnet is disposed in an annular cavity of the rotor. An armature plate facing to a front end surface of the rotor is supported elastically by a stopper plate through a plurality of leaf springs. The stopper plate is fixed to an outer end of a drive shaft. First engaging elements are formed at an outer peripheral surface of the rotor. Second engaging elements are formed at an inner peripheral surface of the pulley. The first and second engaging elements are complementary and prevent the relative rotational motion of the pulley and the rotor when engaged. A stopper provided on the outer peripheral surface of the rotor prevents the relative axial movement of the pulley and the rotor.
    Type: Grant
    Filed: June 3, 1988
    Date of Patent: October 17, 1989
    Assignee: Sanden Corporation
    Inventors: Takashi Matsushita, Genzo Yanai
  • Patent number: 4874353
    Abstract: A method for manufacturing a poly-V pulley includes a process for slitting and compressing the peripheral edge portion of an essentially flat blank for forming a widened and thickened flange wall. A series of relatively narrow, deep, V-shaped grooves are cold rolled. The poly-V pulley thus produced has the flange wall with poly-V grooves, from the intermediate portion of which a web extends radially inward. This structure provides good dynamic balance of rotation for the pulley and thus prolongs the life not only of the pulleys per se but also the belt to be put around the pulley. Further, the manufacturing method allows the manufacture of relatively small diameter poly-V pulleys.
    Type: Grant
    Filed: January 6, 1988
    Date of Patent: October 17, 1989
    Assignee: Fuji Kiko Company, Limited
    Inventors: Ken Matsuoka, Masanobu Yamazaki
  • Patent number: 4840607
    Abstract: A weight reduced pulley for "K" type poly-v belt systems includes a body having an outer cylindrical surface. A plurality of raised ribs extend from said surface and run circumferentially around said surface. A plurality of trough areas are positioned between the ribs. The ribs and troughs corresponding to the location of indented and raised areas, respectively, on a poly-v belt. The ribs have a cross sectional profile extending radially traverse of the axis of rotation of the pulley, each rib being bounded by a pair of planar side walls at relative angles of The side walls terminate in a arc having a radius of 0.5 mm, the outermost point of said arc terminating 0.96 mm inward of the intersection of the upward projections of the planar side walls or apex. The planar side walls extend radially inward at least 3.44 mm from said apex. The trough areas are bounded by the outer cylindrical surface of said pulley, said surface being 3.57 mm from said apex.
    Type: Grant
    Filed: June 26, 1987
    Date of Patent: June 20, 1989
    Assignee: Dyneer Corporation
    Inventors: Gary L. Hitchcock, Henry W. Thomey, Yahya Hodjat, Marc R. Cadarette, Dawson M. Collins
  • Patent number: 4799909
    Abstract: A sheet metal poly-V pulley and a method of manufacturing the same, having a tubular peripheral wall integrally formed from the peripheral edge of bottom wall and having poly-V grooves formed in said peripheral wall at specified pitches, in which a bent part is formed in said bottom wall in an annular form concentric with the axial center of the peripheral wall and bulging out in a convex form toward the opening side of the peripheral wall. The load from the poly-V belt which may cause plastic deformation of the sheet metal poly-V pulley is absorbed by this bent part, so that the increase of material cost, difficulty in forming, and increase of weight due to increase of the thickness of the blank of sheet metal poly-V pulley in order to enhance the strength may be avoided.
    Type: Grant
    Filed: June 17, 1987
    Date of Patent: January 24, 1989
    Assignee: Kabushiki Kaisha Kanemitsu
    Inventor: Masahiro Kanemitsu
  • Patent number: 4767387
    Abstract: A method for manufacturing a poly-V pulley includes a process for slitting and compressing the peripheral edge portion of an essentially flat blank for forming a widened and thickened flange wall. A series of relatively narrow, deep, V-shaped grooves are cold rolled. The poly-V pulley thus produced has the flange wall with poly-V grooves, from the intermediate portion of which a web extends radially inward. This structure provides good dynamic balance of rotation for the pulley and thus prolongs the life not only of the pulleys per se but also the belt to be put around the pulley. Further, the manufacturing method allows the manufacture of relatively small diameter poly-V pulleys.
    Type: Grant
    Filed: May 21, 1986
    Date of Patent: August 30, 1988
    Assignee: Fuji Kiko Company, Limited
    Inventors: Ken Matsuoka, Masanobu Yamazaki
  • Patent number: 4648163
    Abstract: A method of making a poly-V ribbed pulley engaged with a V-ribbed belt or V-ribbed belts. The method includes the steps of pressing two flanges or one circular projection between the two flanges in the cylinder, pressing a flange at the radially outer end of a thick circular plate, connecting one flange of the cylinder to the flange of the thick circular plate by welding, and performing rolling to form V-shaped grooves at the outside surface of the cylinder.
    Type: Grant
    Filed: August 19, 1985
    Date of Patent: March 10, 1987
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Nobuhiro Kayakabe, Tadashi Sugiura, Hitoshi Sugimoto
  • Patent number: 4591025
    Abstract: A main rope is wound round a sheave and a deflector wheel by three turns, and the sectional shape of those rope grooves of the sheave with which the main rope is held in engagement is formed in the shape of circular arcs, whereby the lifetimes of the main rope and the sheave are lengthened, and an enhanced traction ability is attained. Among the grooves of the driving sheave around which the main rope is wound, those except the grooves around which the main rope is wound first and last are shaped so as to afford greater friction at contact therebetween than the frictional contact of the first and last grooves, or the grooves around which the main rope is wound first and last are rendered higher in hardness than the other grooves, whereby the amounts of wear of the respective grooves are equalized to extend the lifetimes of the rope and the sheave and to prevent the pleasant ride of an elevator from worsening.
    Type: Grant
    Filed: September 19, 1984
    Date of Patent: May 27, 1986
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Takenobu Honda
  • Patent number: 4568316
    Abstract: The multiple sheave mechanism is primarily intended for use on the outer end of a long boom of a crane. The mechanism includes a plurality of sheaves that have hubs supported for rotation on a shaft by anti-friction bearings. Each of the hubs have a cylindrical inner flange on one side and a cylindrical outer flange on the other side, and the hubs are axially spaced from each other with the outer flanges overlapping the inner flanges. The outer flange on one end sheave overlaps an annular retainer, and a second retainer overlaps the inner flange on the other end sheave. The cooperating flanges and retainers define circuitous passages which are filled with lubricant for providing a mechanical seal and a fluid seal which minimizes entry of dirt, dust and other debris into the bearings and maximizes the interval between required relubrication.
    Type: Grant
    Filed: April 26, 1984
    Date of Patent: February 4, 1986
    Assignee: FMC Corporation
    Inventors: Gary L. Veikley, Kenneth W. Huck
  • Patent number: 4548592
    Abstract: A pulley, composite in nature, including a fabricated wheel defining a rim channel into which a ring is positioned. The ring is rigidly held within the channel by tabs and interlocking arrangements. The ring is designed to include any one of a number of pulley gripping surfaces such as teeth and V grooves.
    Type: Grant
    Filed: December 23, 1982
    Date of Patent: October 22, 1985
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Yasuo Ohhashi, Junichi Araki, Yoshihiro Katsui
  • Patent number: 4522612
    Abstract: A pulley has a planar end wall and an annular wall extending axially outwardly therefrom. The annular wall is formed with belt receiving grooves and the end wall is formed with a central opening for mounting the pulley on a hub or shaft. A stamped sheet metal washer having a generally annular configuration is formed with a central hole and an integral projection extending radially outwardly from the outer edge of the washer. The washer is firmly attached to the end wall of the pulley preferably by welding or by bonding with an acrylic structural adhesive with the central hole of the washer being concentric to the central opening of the end wall. The projection is positioned to counterbalance any unbalance in the annular wall that may have developed therein during forming of the pulley.
    Type: Grant
    Filed: April 20, 1983
    Date of Patent: June 11, 1985
    Assignee: Dyneer Corporation
    Inventor: Benjamin F. Frazer
  • Patent number: 4518374
    Abstract: A sheet metal poly-V pulley formed from a cup-shaped blank having a cylindrical wall with inner and outer peripheral surfaces, the pulley comprising: at least a portion of the cylindrical wall being thickened with material from the blank, the thickened portion having a plurality of parallel V-shape annular grooves in the outer peripheral surface, separated by parallel, annular partition walls, the alternating annular grooves and partition walls being adapted for receiving poly-V belts; the inner peripheral surface of the thickened portion having a plurality of small V-shape annular grooves arranged parallel to one another and centrally aligned with the partition walls of the outer peripheral surface; and, annular flanges at opposite ends of the thickened portion projecting radially beyond the partition walls, the flanges having stepped, annular cut-out portions to prevent contact between the pulley and lateral edges of poly-V belts.
    Type: Grant
    Filed: July 21, 1982
    Date of Patent: May 21, 1985
    Assignee: Kabushiki Kaisha Kanemitsu
    Inventor: Yukio Kanemitsu
  • Patent number: 4473363
    Abstract: A composite plastic and metal pulley intended primarily for use with an endless drive belt for vehicle accessories, particularly an alternator. The pulley is formed by a hollow cylindrical-shaped molded plastic member having a series of outwardly opening V-shaped belt-receiving grooves on the outer surface thereof. A flat disc-shaped metal member is mounted within the central bore of the plastic member perpendicular to the longitudinal axis thereof. The outer edge of the metal disc is scalloped and is embedded firmly within the plastic to prevent rotation of the disc with respect to the plastic member. A central opening is formed in the disc for mounting the pulley on the extended end of the alternator shaft.
    Type: Grant
    Filed: August 20, 1981
    Date of Patent: September 25, 1984
    Inventor: Ben O. McCutchan, Jr.
  • Patent number: 4464148
    Abstract: A method of making a ribbed belt having a plurality of longitudinally extending ribs is provided, wherein a vulcanized belt sleeve is put into one mandrel or said belt sleeve laid over two mandrels and cut with a milling attachment combining multiple double angle milling cutters in such a manner that the rotation of the milling attachment is opposed to that of the mandrel and the revolution speed of the milling attachment is greater than that of the mandrel, thus precisely defining a ribbed section of the belt in a simultaneous manner.
    Type: Grant
    Filed: February 25, 1983
    Date of Patent: August 7, 1984
    Assignee: Mitsuboshi Belting Ltd.
    Inventors: Hiroyuki Tanaka, Tadashi Yamaguchi
  • Patent number: 4364736
    Abstract: A pulley and method of making same are provided wherein such pulley has a plurality of annular grooves for receiving a power transmission belt which has a corresponding plurality of belt elements. The pulley comprises a pair of side flanges, each having a belt element supporting side wall and at least one annular rib between the flanges. Such rib has belt element supporting side walls and side flanges which are separate substantially identical parts that are interchangeable on the pulley from side to side. The rib is disposed in sandwiched relation between the side flanges, with the flanges and rib being fastened together to define a pulley.
    Type: Grant
    Filed: June 4, 1980
    Date of Patent: December 21, 1982
    Assignee: Dayco Corporation
    Inventor: G. Brian Hetz