Belt Has Oppositely Facing Side Drive Surfaces (e.g., "v-belt", Etc.) Patents (Class 474/242)
  • Patent number: 6336884
    Abstract: When a tangential friction force received by a pulley abutment surface 37 of a metal element 32 from a pulley is represented by FV; a radial distance from a point 45 of action of the tangential friction force to a rocking edge 40 located radially outside the friction force-acting point 45 is represented by L; a radially inward load received by the metal element 32 from a metal ring assembly 31 is represented by FL; and a thickness of the metal element 32 is represented by t, the radial distance L and the thickness t of the metal element are determined, so that a relation, L/t≦FL/2FV is established. Thus, even if a moment FV×L is applied to the metal element 32 by the tangential friction force FV, the moment FV×L can be canceled by a moment FL×(t/2) generated by a load FL for urging an edge a of a ring slot 35 by the metal ring assembly 31, thereby preventing the inclination of the metal element 32 to enhance the durability of the metal ring assembly.
    Type: Grant
    Filed: April 20, 2000
    Date of Patent: January 8, 2002
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Hiroshi Wakui, Shigeru Kanehara
  • Patent number: 6334830
    Abstract: A metal V-belt comprising an endless metal ring member 14 and a plurality of metal element members 10 supported along said metal ring member wherein the clearance between a slot portion S of the metal element members 10 and the endless metal ring member 14 is set larger than the clearance in the thickness direction of the belt between the concave and convex portions of a coupling portion 5 used for linking disposed on the front and rear surfaces of the metal element members 10. This controls damage to the metal ring member caused by contact between the metal ring member outermost periphery of the metal V-belt used in, for example, an infinite variable-speed drive and the metal element members.
    Type: Grant
    Filed: October 26, 1999
    Date of Patent: January 1, 2002
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Tooru Yagasaki, Shigeru Kanehara, Hideaki Aoyama
  • Patent number: 6334831
    Abstract: Drive belt (10) for a continuously variable transmission, as for use in motor vehicles, having transverse elements (20) and at least one endless carrier. The transverse elements (20) are each provided with a recess (21), which extends between a first and a second main face (22 and 23, respectively) of a transverse element (20), which main faces are oriented transversely to the intended direction of movement (C) of the drive belt (10). The recess (21) offers accommodation for the carrier (30) and at least is bounded by an abutting face (24), intended to come into contact with a main face (30′) of the carrier (30), and a boundary face (25), which is oriented transversely thereto and restricts the freedom of movement of the carrier (30) in the axial direction. The boundary face (25) merges into the first main face (22) and into the second main face (23) via transition edges (27, 27′), characterised in that the radius of curvature (R) of at least one transition edge (27) is less than 0.2 mm.
    Type: Grant
    Filed: January 18, 2000
    Date of Patent: January 1, 2002
    Assignee: Van Doorne's Transmissie B.V.
    Inventors: Paulus Maria Smeets, Roland Theo Anton Kals
  • Publication number: 20010056002
    Abstract: A driving belt for use in a continuously variable transmission comprising two V-shaped pulleys, which driving belt comprises a carrier consisting of two endless band packages lying side by side, on which transverse elements are disposed. Each transverse element includes two recesses positioned opposite each other for receiving the band packages, wherein a part of the transverse element is positioned between said band packages. The front side of the transverse element includes a projection, which can mate with a recess in the adjacent transverse element. Said projection and said recess are at least partially formed in the aforesaid part of the transverse element.
    Type: Application
    Filed: June 19, 2001
    Publication date: December 27, 2001
    Applicant: Van Doorne's Transmissie b.v.,
    Inventors: Johannes Hendrikus Van Lith, Jeroen Herman Van Liempd, Marco Van Schaik
  • Patent number: 6332854
    Abstract: A belt for a continuously variable transmission includes a metal element 32 having a rocking edge 40 between a main surface 38 and a slope 41 on the front side of the metal element in the advancing direction and a ring slot 35, into which a metal ring assembly 31 is fitted, between an element body 34 and an ear portion 36. The position of the center of gravity G of the metal element 32 is regulated to the outside of the rocking edge 40 and to the inside of a radially outer end 351 of the ring slot 35.
    Type: Grant
    Filed: June 22, 2000
    Date of Patent: December 25, 2001
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Ken Kanokogi, Takamichi Shimada
  • Publication number: 20010053726
    Abstract: A V-belt transmits rotational movements between at least two belt pulleys and includes at least one endless load carrier and a plurality of transverse blocks mounted thereon. The load carrier is fitted into slots which extend from at least one inclined lateral surface of a block toward the center region thereof. The load carrier has a contact surface which faces a boundary surface of the slot in the block. The contact surface and the boundary surface are provided with convex and/or concave sections. To minimize losses and increase efficiency, the pressing force is reduced where the slide movement occurs. A contact region is assumed between the stretched state of the V-belt up to the state corresponding to the smallest running radius. In the entire contact region, a continuously changeable curvature or a composite of at least three sections of constant curvature is realized in such a manner that the curvature from the center of the contact region to the outer region increases.
    Type: Application
    Filed: June 4, 2001
    Publication date: December 20, 2001
    Inventor: Heiko Sattler
  • Publication number: 20010053727
    Abstract: In a belt transmission system including a combination of a V-belt for heavy load transmission and V-pulleys as variable speed pulleys, the surface roughness of a pulley groove of each V-pulley is set within the range from 0.5 to 3.0 &mgr;m to reduce energy generated when the V-belt and the V-pulleys are interfered with each other thereby reducing production of running noise during belt running.
    Type: Application
    Filed: June 11, 2001
    Publication date: December 20, 2001
    Inventors: Eijiro Nakashima, Hiroyuki Sakanaka, Hiroyuki Sato
  • Publication number: 20010051554
    Abstract: Clearance Cs during a no-load stop and allowable value Cto of total clearance Ct obtained as a sum of clearance Ch occurring due to Hertzian stress are stipulated to a value less than height h of male coupling 28 along with an allowable value &sgr;hmo of the maximum Hertzian stress acting on rocking edge 26 being stipulated to a value less than an upper limit value &sgr;ho of the Hertzian stress that satisfies the opposing pitching lifespan. The radius of curvature R of the rocking edge is set within a range that satisfies R1≦R≦R2 for the radius of curvature R1 determined in correspondence with the allowable value &sgr;hmo of the maximum Hertzian stress and the radius of curvature R2 determined in correspondence with the allowable value Cto of the clearance between the total elements.
    Type: Application
    Filed: August 23, 1999
    Publication date: December 13, 2001
    Inventors: SHIGERU KANEHARA, TAKAMICHI SHIMADA
  • Publication number: 20010041636
    Abstract: The block type CVT belt according to the present invention comprises at least one endless load carrier having tensile members. A plurality of blocks are transversely engaged with the load carrier in a lengthwise direction of the belt. The center of gravity of each block is asymmetrically located in each block. Each block has thermoset or thermoplastic over-molding. The over-molding is attached to the metal block by use of an adhesive. The preparation of the metal reinforcing member is accomplished by mechanical tumbling means, as opposed to chemical preparation. Each block also comprises at least one slot for receiving the load carrier. Each slot having an upper concave surface and a lower surface having a complex shape. The upper concave surface receives a corresponding convex surface or tooth on an upper surface of the tensile member. Each slot is provided with a complex radius between a central pillar and an upper and lower arm in order to avoid stress risers.
    Type: Application
    Filed: May 8, 2001
    Publication date: November 15, 2001
    Inventors: Alexander Serkh, Joseph A. Beaupied, Scott Ciemniecki
  • Publication number: 20010039225
    Abstract: An endless metal belt (15) is formed by layering thin metal rings (30) in thicknesses to form tow layered ring structures (31) and fitting the two layered ring structures in slots (32a) formed in opposite side parts of each of metal blocks (32), extending on the opposite sides of a neck part (32e) of the metal block. The endless metal belt is extended between drive and driven pulleys (6, 11) respectively having variable effective diameters to change speed change ratio.
    Type: Application
    Filed: March 21, 2001
    Publication date: November 8, 2001
    Inventor: Shigeru Kanehara
  • Publication number: 20010036558
    Abstract: Multilayer articles such as V-belts, hoses, rubber sheets, tires are produced from ethylene, alpha-olefin, or ethylene, alpha olefin diene copolymer elastomers which despite their attractive properties, have not been used previously due to the lack of green tack. The problem of insufficient green tack is overcome by the incorporating an aromatic containing petroleum resin.
    Type: Application
    Filed: January 12, 2001
    Publication date: November 1, 2001
    Inventors: Kenneth Lewtas, Vincent B.B.G. Gallez, Eric P. Jourdain, Thomas Jay Reynolds, Giandomenico Stella
  • Patent number: 6306055
    Abstract: The invention comprises a plurality of clips arranged about a tensile member or core belt. The tensile member comprises a multi-ribbed belt. The multi-ribbed belt may comprise any standard multi-ribbed belt readily available in the art. The clips are generally u-shaped and have opposing inclined sides that cooperate with the sides of a CVT pulley. The opposing inclined sides of each clip can have a thermoset, thermoplastic or phenolic coating to provide a predetermined coefficient of friction. Each clip has a multi-ribbed profile bearing surface that cooperates with the multi-ribbed portion of the core belt. The clips are held in proper orientation to the multi-ribbed belt by elastomeric bands. The elastomeric bands are routed through a slot in each clip which then compresses the clips together.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: October 23, 2001
    Assignee: The Gates Corporation
    Inventor: Alexander Serkh
  • Patent number: 6299559
    Abstract: An endless chain for the transmission of torque between adjustable pulleys of a continuously variable transmission has a series of successive composite links. The neighboring links of the series have overlapping portions with registering openings for composite rocker elements each having two bolts carrying projections at the sides of the chain to abut the adjacent links and/or to oppose unintentional separation of the bolts from the respective links. At least one of the bolts carries a single projection; for example, each bolt can carry a single projection and the projections of the bolts constituting a rocker element can be located at opposite sides or at the same side of the chain. The projections can be of one piece with or can be affixed to the respective bolts. The bolts can be inserted into the respective openings at the one or the other side of the chain.
    Type: Grant
    Filed: July 30, 1999
    Date of Patent: October 9, 2001
    Assignee: LuK Getriebe-Systeme GmbH
    Inventor: Oswald Friedmann
  • Patent number: 6293886
    Abstract: A block-type heavy-duty power transmission V-belt including a large number of blocks fixedly engaged with tension members by fitting the tension members in fitting grooves formed on side faces of the blocks. In a reinforcing member embedded in each of the blocks, a beam angle between a vertical center line of an upper beam part disposed above the fitting groove and a pulley groove face closer to the center of a pulley than a portion of the pulley in contact with an upper contact part of the block is 90° or more. In this manner, to the base of the upper beam part is applied merely tensile stress derived from a shearing force working in a lengthwise direction of the belt between the block and the tension member, or tensile stress reduced correspondingly to compressive stress derived from downward bending moment applied to the upper beam part due to a reaction force from the pulley groove face.
    Type: Grant
    Filed: October 8, 1999
    Date of Patent: September 25, 2001
    Assignee: Bando Chemical Industries Ltd.
    Inventors: Hirokazu Ohkawa, Mitsuhiko Takahashi
  • Publication number: 20010019979
    Abstract: A power transmission chain belt has multiple inner links, each having a pair of pin apertures. The links are interleaved in the transverse and longitudinal directions. The links are connected by a connecting pin inserted in the pin aperture to compose a chain belt. The connecting pin is composed of a joint pin of an arcuate cross-section, both end faces of which contact the pulley's friction face, and a rocker pin of arcuate cross-section, which is shorter than the joint pin. The outer link is arranged on the outside of outermost inner link. A stepped portion of the joint pin is press-fitted into a pair of pin apertures of outer link.
    Type: Application
    Filed: February 2, 2001
    Publication date: September 6, 2001
    Inventors: Shozo Wakabayashi, Niroyuki Takeda
  • Patent number: 6283882
    Abstract: A heavy-duty power transmission V-belt includes right and left tension members having concave parts on upper and lower faces thereof, and a large number of blocks having fitting parts for compressedly fitting the tension members therein on right and left side faces of the blocks. By compressedly fitting the tension members in the fitting parts of the blocks, the respective blocks are fixedly engaged with the tension members so as to allow the side faces thereof to be brought into contact with a groove face of the pulley. An innermost lower face is formed in an innermost portion of the fitting part of each block, and an innermost lower face angle &agr; between the innermost lower face and a vertical plane is determined so as to have a relationship of &bgr;−3<&agr;<&bgr;+3 with a belt side face angle &bgr;.
    Type: Grant
    Filed: October 8, 1999
    Date of Patent: September 4, 2001
    Assignees: Bando Chemical Industries, Ltd., Aichi Machine Industry Co., Ltd.
    Inventors: Keizo Nonaka, Mitsuhiko Takahashi, Hiroyuki Sakanaka
  • Patent number: 6273837
    Abstract: The durability of the entire metal ring assembly is enhanced by increasing the wear life of the radially inner surface of the metal ring of the innermost layer which is the layer which is most easily fractured. A belt for a continuously variable transmission is formed by supporting a large number of metal elements on a metal ring assembly wherein multiple sheets of endless metal rings are layered. The thickness of the metal ring of the innermost layer is different from the thickness of the metal rings of layers other than the innermost layer. The thickness of the metal ring of the innermost layer is set so that the stress amplitude applied to the radially outer surface of the metal ring of the innermost layer is not more than the stress amplitude applied to the radially outer surfaces of the metal rings of layers other than the innermost layer. By setting the thickness of the metal ring of the innermost layer at 0.042 mm to 0.
    Type: Grant
    Filed: September 24, 1999
    Date of Patent: August 14, 2001
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Hideaki Yoshida, Takamichi Shimada, Hirofumi Akagi
  • Patent number: 6270437
    Abstract: By defining the contact ratio obtained by dividing the lateral width of a saddle surface of metal elements of a metal belt for a continuously variable transmission by the lateral width of a metal ring, the transmission capacity and durability of the metal belt can be enhanced. By gradually increasing the width of the metal ring in a state in which the lateral inner edges of the metal ring are in contact with the neck parts of the metal elements so as to gradually decrease the contact ratio, accompanying it the percentage change in the power transmission capacity gradually increases from the negative side and changes positive at a predetermined contact ratio.
    Type: Grant
    Filed: August 31, 1999
    Date of Patent: August 7, 2001
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Hideaki Yoshida, Takamichi Shimada
  • Publication number: 20010004616
    Abstract: The invention relates to a drive belt (1) for a transmission realizing a continuously adjustable transmission ratio comprising at least one continuous band (20) having a part, which, when in a longitudinally stretched state (cross section A-A), shows a curvature in a direction transverse to the longitudinal direction of the drive belt (1), said curvature being of a generally arc-like shape having a stretched band radius RSB, associated with a number of cross elements (30), each having a contact face (31) for interacting with a principle face (24) of the continuous band (20) and provided with a transverse convex curvature of a generally arc-like shape having a face radius RS. The inverse value (1/RS) of the face radius RS minus the inverse value (1/RSB) of the stretched band radius RSB is notionally larger than -5 [m−1], preferably larger than −3.5 [m−1].
    Type: Application
    Filed: December 15, 2000
    Publication date: June 21, 2001
    Inventors: Arjen Brandsma, Johannes Hendrikus Van Lith, Cornelis Johannes Maria Van Der Meer, Cornelus Hendricus Maria Van Oirshot, Johannes Haaije Van Der Kamp, Gerardus Petrus Maria Van Dijnsen
  • Patent number: 6238313
    Abstract: A drive belt for use in a continuously variable transmission includes a plurality of transverse elements carried by at least one endless carrier with at least one endless band, received in a receiving shot provided for the band in the element, the slot allowing relative axial play Pa between the element and the band relative to the predominant longitudinal direction of the belt, wherein the axial play is of a value between 0.2 and 0.95 times the maximum amount of misalignment defined for the belt, indicated in maximum amount of lateral displacement.
    Type: Grant
    Filed: July 30, 1999
    Date of Patent: May 29, 2001
    Assignee: Van Doorne's Transmissie B.V.
    Inventors: Paulus Maria Smeets, Wilhelmus Peter Catharina Peters, Johannes Hendrikus Lith
  • Patent number: 6217471
    Abstract: A drive belt for a continuous variable transmission includes at least one endless metal band, preferably provided in a set of nested bands, at least partly being surrounded by transverse elements for at least clamping the belt in between the sheaves of a set of pulleys. At least one band is shaped such, as seen in cross section, that the arithmetical relation between thicknesses TA, TB and TC at three points PA, PB, PC on a contact face, given by the formula (1−(TA+TB)/2TC) represents a value greater than 0.001 and smaller than 0.100, wherein points PA, PB and PC are indicative of a substantially transverse line relative to the longitudinal direction of the band, wherein point PC is located between PA and PB, wherein points PA and PB are located near the edge of the band.
    Type: Grant
    Filed: April 14, 1999
    Date of Patent: April 17, 2001
    Assignee: Van Doorne's Transmissie B.V.
    Inventors: Arjen Brandsma, Johannes Hendrikus Van Lith, Cornelis Johannes Maria Van Der Meer, Johannes Haaije Van Der Kamp, Cornelus Hendricus Maria Van Oirschot, Gerardus Petrus Maria Van Dijnsen
  • Patent number: 6217472
    Abstract: A metal V-belt for transmitting power, looped between a drive pulley 6 and a driven pulley 11, and comprising endless belt-form metal rings 31 and numerous metal elements supported along these metal rings, wherein the metal rings comprise a plurality of thin, endless belt-form metal ring sheets 33(1) to 33(n) superposed in the radial direction, and of these, the thickness of the innermost metal ring sheet 33(1) is set to be less than the thickness of the other metal ring sheets 33(2) to 33(n). Here, the thickness of the innermost metal ring sheet is set on the basis of the ratio of the coefficient of friction between the innermost metal ring sheet and the metal element members to the coefficient of friction between the other metal ring sheets.
    Type: Grant
    Filed: June 23, 1999
    Date of Patent: April 17, 2001
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Hiroshi Fujioka, Kouhei Ohsono
  • Patent number: 6203460
    Abstract: A chain for use with a continuously variable transmission is formed in two portions that are phased, or offset, by one-half pitch length. The chain portions include an asymmetrical guide link on the outside of alternate rows. The inner links have a substantially horizontal lower body and a horizontal upper portion of the passageway to position the strut in close proximity to the chain pitch line.
    Type: Grant
    Filed: April 23, 1999
    Date of Patent: March 20, 2001
    Assignee: BorgWarner Inc.
    Inventors: Laurence Parks, Mark D. Reese
  • Patent number: 6123637
    Abstract: A metal V-belt MV comprises endless belt-form metal rings 20 and numerous metal elements 10 supported along these metal rings 20. The metal rings 20 comprise a plurality of thin, endless belt-form metal ring sheets superposed in the radial direction, and of these ring sheets, the outermost and innermost ring sheets 20a and 20b are made from a metal material with high wear resistance, while the rest of the ring sheets 20c in the middle are made from a metal material with high tensile strength.
    Type: Grant
    Filed: June 4, 1999
    Date of Patent: September 26, 2000
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventor: Toru Yagasaki
  • Patent number: 6102823
    Abstract: A power transmission belt having a center belt with a length, an inside surface, and an outside surface. Upper and lower blocks are provided and each has a leading face, a trailing face, and laterally oppositely facing pulley-engaging side surfaces. The upper and lower blocks are connected to each other to maintain the upper block, lower block and center belt together in an operative relationship without penetrating the center belt. At least one of the pulley-engaging side surfaces on at least one of the upper and lower blocks is uninterrupted between the leading and trailing faces on the one of the upper and lower blocks so that the at least one side surface can engage a cooperating pulley surface along an uninterrupted line between the leading and trailing faces of the at least one side surface.
    Type: Grant
    Filed: October 7, 1992
    Date of Patent: August 15, 2000
    Assignee: Mitsuboshi Belting Ltd.
    Inventors: Yasutoshi Hosokawa, Akiyoshi Homan, Kiyokazu Wada, Koji Matsuo, Isao Koyama, Shinichi Takagi, Mitsuo Ishikawa
  • Patent number: 6090004
    Abstract: A belt for a continuously variable transmission in which an aggregate of metal rings formed by laminating a plurality of pieces of endless metal rings support a plurality of metal blocks. When the ratio .xi. of the coefficient of friction is set to be 2.0>.xi.>0.65, the amount of change in the tension on the metal ring of the innermost position decreases correspondingly. In particular, when the ratio .xi. of the coefficient of friction is set to be 1.0, resulting in the coefficient of friction .mu..sub.s between a ring and a block being equal to the coefficient of friction .mu..sub.SS between a ring and a ring, the amount of change in the tension on all metal rings become uniform, and each metal ring shares an amount of change in the tension which is 8% of the entire amount. This makes it possible to decrease the amount of change in the tension on the metal ring of the innermost position and, hence, to increase the durability of the aggregate of metal rings as a whole.
    Type: Grant
    Filed: October 9, 1998
    Date of Patent: July 18, 2000
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Shigeru Kanehara, Hideaki Yoshida, Hirofumi Akagi, Tooru Yagasaki, Tooru Fujii, Shinya Kuwabara
  • Patent number: 6074317
    Abstract: A belt for a continuously variable transmission includes a rigid ring. A plurality of adjacent rigid first elements are supported on the ring. Each element has first and second surfaces facing forward and rearward of the element in a direction of rotation of the ring, a first locking edge formed at the first surface, and a second locking edge formed at the second surface. The first surface includes a first inclined face extending radially inward of the first locking edge so that a thickness of the element gradually decreases in a radially inward direction, and a first radially outward face extending radially outward of the first locking edge. The second surface includes a second face extending radially inward of the locking edge and a second radially outward face extending radially outward of the second locking edge. The second face is depressed relative to the second radially outward face so that the thickness of the element is smaller at the second face than at the second radially outward face.
    Type: Grant
    Filed: December 16, 1997
    Date of Patent: June 13, 2000
    Assignee: Nissan Motor Co., Ltd.
    Inventor: Daisuke Kobayashi
  • Patent number: 5993345
    Abstract: A power transmission system for transmitting power between a plurality of toothed sprockets mounted on rotating members. The system includes a chain comprising a plurality of transverse elements arranged in an endless loop and maintained in a stack by a plurality of endless carriers received in slots in each transverse element. Power is transmitted along the chain by contact between the principal faces of the transverse elements. The transverse elements include a plurality of load bearing elements which are configured to engage the teeth of the sprockets and provide power transmission therewith.
    Type: Grant
    Filed: October 27, 1997
    Date of Patent: November 30, 1999
    Assignee: Borg-Warner Automotive, Inc.
    Inventor: Philip J. Mott
  • Patent number: 5843258
    Abstract: A method of joining a woven fabric on a power transmission belt and transferring an identifying mark thereon by providing a discrete sheet element with an identifying mark thereon, providing a woven sheet having spaced ends, abutting the spaced ends of the woven sheet to each other, placing the discrete sheet element over the abutted ends of the woven sheet, adhering the discrete sheet element to the abutted ends of the woven sheet, and combining the woven sheet with the discrete sheet element adhered thereto with at least one other component to produce an unvulcanized power transmission belt/belt sleeve, wherein the surface of the power transmission belt defined by the woven sheet is characterized by the absence of any recessed or stepped portions.
    Type: Grant
    Filed: September 10, 1996
    Date of Patent: December 1, 1998
    Assignee: MBL (USA) Corporation
    Inventor: Satoshi Murakami
  • Patent number: 5792013
    Abstract: Rocker link elements (32, 33), which are located in pairs for connection of plate links (40), have end facing friction surfaces (43) which are essentially part spherical, for cooperation with essentially part spherical cone surfaces of cone disks (3, 4, 7, 8, 24-27). A base or central surface line is located approximately at a radial position of engagement with the end facing surfaces (43) of the rocker elements (32, 33) with the cone surfaces of the cones when the transmission is set for a transmission ratio of 1:1. To prevent engagement of edge regions of the rocker link elements with the respective cone disks, surface lines (54, 55) located radially outwardly, or inwardly, respectively, from a central surface line (49, 53), are inclined by an angle (.delta.), with respect to the base or central surface line. The angle of inclination (.delta.
    Type: Grant
    Filed: March 19, 1997
    Date of Patent: August 11, 1998
    Assignees: CVT Verwaltungs GmbH & Co., Patentverwertungs KG
    Inventors: Johannes Heinrich, Manfred Maier, Klaus Sohnge, Dirk Weitzel, Georg Kell, Gert Schonnenbeck, Peter Wagner
  • Patent number: 5728021
    Abstract: Transmission chain for a cone pulley transmission with links, coupled by pins, engaging the cone pulley surfaces, and by elongate each link accommodating, non-rotatable with respect to it, a pin and, in the longitudinal dimension of the link at a distance therefrom an interpiece; each pin cooperating with an opposite interpiece and with; in each link, adjacent each active side surface of a pin and an interpiece respectively sufficient free space to accommodate an interpiece or pin respectively, which is coupled to an adjacent link, during its movement, and with adjacent sets of links mutually coupled in the longitudinal direction of the transmission chain in that one pin in a first link co-operates with a rolling contact movement with an interpiece in an adjacent, staggered link.
    Type: Grant
    Filed: May 3, 1996
    Date of Patent: March 17, 1998
    Assignee: Gear Chain Industrial B.V.
    Inventors: Jacobus H. M. van Rooij, Theodorus P. M. Cadee
  • Patent number: 5697571
    Abstract: An apparatus (20, 100) comprising: a driven gear (102) operatively linked to a spool of a retractor (20) to rotate the spool (24) in a direction of retraction to cause a seat belt (31) wound thereabout to retract; an arcuate tube (108) having a flat exit end (110) proximate the gear; a flexible chain link rack (130), movable within the tube, having a front end (134a) initially maintained out of engagement with the first driven means and pushed into engagement with the first driven means to cause same to rotate; a piston (140) for pushing the rack (130) into engagement with the gear thereby causing the gear to rotate and catching mechanism for retaining the rack after it has exited the exit end of the tube.
    Type: Grant
    Filed: May 17, 1996
    Date of Patent: December 16, 1997
    Assignee: AlliedSignal Inc.
    Inventors: Niels Dybro, Jason Raines
  • Patent number: 5533940
    Abstract: The invention relates to a drive belt, in particular suitable for a continuously variable transmission, the configuration of the drive belt being such that the tilting of the transverse elements of the drive belt in the pulley of the continuously variable transmission is largely overcome. The drive belt can be produced in a relatively simple and cheap way, offers a higher efficiency and less wear.
    Type: Grant
    Filed: May 8, 1995
    Date of Patent: July 9, 1996
    Assignee: Van Doorne's Transmissie B.V.
    Inventor: Paulus M. Smeets
  • Patent number: 5439423
    Abstract: A power transmission chain belt wherein each of two mutually offset parallel chains includes connected sets of parallel links, and spaced-apart parallel load block members engage the inner side of the parallel chains. Each set of parallel links includes link plates each having a pair of gripping protrusions formed so as to extend from an inner-side end face facing the load block members. The protrusions engage a pair of engaging grooves formed on each load block member, to thereby hold the link plates. The grooves are open on the opposite end faces of the load block member, and are provided with stopper means for inhibiting relative movements of the link plates and the load block member.
    Type: Grant
    Filed: April 8, 1994
    Date of Patent: August 8, 1995
    Assignees: Borg-Warner Automotive, Inc., Toyota Jidosha Kabushiki Kaisha
    Inventors: Shigeru Okuwaki, Yukio Tomimura
  • Patent number: 5439422
    Abstract: The invention relates to a drive belt, in particular suitable for a continuously variable transmission, the configuration of the drive belt being such that the tilting of the transverse elements of the drive belt in the pulley of the continuously variable transmission is largely overcome. The drive belt can be produced in a relatively simple and cheap way, offers a higher efficiency and less wear.
    Type: Grant
    Filed: May 24, 1994
    Date of Patent: August 8, 1995
    Assignee: Van Doorne's Transmissie B.V.
    Inventor: Paulus M. Smeets
  • Patent number: 5374223
    Abstract: A transverse element for an endless transmission unit, which transmission unit comprises one or more carriers having transverse elements slidably disposed thereon, the transverse element being provided with coupling elements and also a tilting zone on at least one of the two main sides of the transverse element. According to the invention, the coupling elements and the tilting zone are integrated in a universal joint.
    Type: Grant
    Filed: August 17, 1993
    Date of Patent: December 20, 1994
    Assignee: Van Doorne's Transmissie B.V.
    Inventor: Emery F. M. Hendriks
  • Patent number: 5364315
    Abstract: An improvement in a power transmission belt of the type having at least one longitudinally extending rib with a side surface to engage a drive surface on a pulley. The side surface has at least a portion that is convex with a curvature at least approximated by an arc of a circle with a radius having a center at a point outside of the one rib.
    Type: Grant
    Filed: May 14, 1993
    Date of Patent: November 15, 1994
    Assignee: Mitsuboshi Belting Ltd.
    Inventor: Toshimi Kumazaki
  • Patent number: 5346440
    Abstract: Transverse element for a drive belt of the kind in which transverse elements whose principal planes rest against each other are fitted displaceably on one or more supports. The transverse elements are provided with one or more supporting surfaces for the support(s), the supporting surface being profiled at least in the direction transverse to the principal planes of the transverse element. The supporting surface is profiled in such a manner that a resultant force, which is to be exerted by a support on the transverse element, essentially engages outside the center of the supporting surface delimited by the principal planes. Stable positioning of the transverse element in the pulleys is thereby obtained, slipping and wear are reduced and efficiency increased. Specifically, the crest of the supporting surface is laterally offset.
    Type: Grant
    Filed: March 3, 1993
    Date of Patent: September 13, 1994
    Assignee: Van Doorne's Transmissie B.V.
    Inventor: Paul M. Smeets
  • Patent number: 5342251
    Abstract: Disclosed is a metallic block for the detection of a force operating on a metallic V-belt. The metallic V-belt includes endless belt-like supporting straps and a multiplicity of metallic blocks supported along the straps. The V-belt passes around a driving pulley and a driven pulley. At least one of the multiplicity of metallic blocks comprises a notch formed in a part thereof, and a strain gauge attached to the notch. The strain gauge is intended to detect an external force applied to the metallic block. The force operating on the metallic V-belt is detected based on thus detected external force.
    Type: Grant
    Filed: May 28, 1993
    Date of Patent: August 30, 1994
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Shigeru Kanehara, Masashi Nakaoka
  • Patent number: 5328412
    Abstract: An apparatus and a method for generating same provides a pulley sheave inner face profile for a variable pulley of a continuously variable transmission allowing the crowned face chain-belt centerline to remain in a plane substantially perpendicular to the axis of the pulleys at all times and at all drive ratios. Given a primary pulley sheave inner face profile, a corresponding secondary pulley sheave inner face profile can be developed to achieve substantially perfect belt alignment. The pulley sheave inner face profiles may be designed to be identical or congruent. Congruent pulley sheave inner face profiles can be developed according to an algebraic solution allowing numerically controlled design and manufacturing techniques in the fabrication of the sheave inner faces.
    Type: Grant
    Filed: October 21, 1992
    Date of Patent: July 12, 1994
    Assignee: Borg-Warner Automotive, Inc.
    Inventor: Metin M. Durum
  • Patent number: 5318484
    Abstract: Metal V-belt drive having small angle V-pulleys engaged by belt mounted pairs of bridging traction drive toggle elements radially loaded by belt tension to provide locking angle driving contact subject to free radial releasing upon leaving each pulley.
    Type: Grant
    Filed: April 6, 1993
    Date of Patent: June 7, 1994
    Inventor: Lloyd M. Forster
  • Patent number: 5263904
    Abstract: If, in the case of a transverse element for application in a driving belt for use in a continuously variable transmission, the thickness of the transverse element is indicated by d, and the area of a principal face of the transverse element is indicated by A, and the circumference of the principal face is indicated by O, then the parallelism of the transverse element remains optimally conserved if the formulated condition hereunder is satisfied. As a result of this measure, noise and vibration during operation are decreased and the efficiency is improved.Od/A<2.
    Type: Grant
    Filed: July 9, 1992
    Date of Patent: November 23, 1993
    Assignee: Van Doorne's Transmissie B.V.
    Inventor: Jeroen H. van Liempd
  • Patent number: 5246406
    Abstract: A torque transmission system for effecting a driving connection between laterally spaced driving, and driven shafts. A fist wheel is mounted on the driving shaft and a second wheel is mounted on the driven shaft. Each of the wheels have substantially identical pitch diameters. An endless flexible torque transmitter operatively connects the first and second wheels. A traveling insert band circumscribes and operatively engages one of the wheels at a time, and when the traveling insert band engages one of the wheels, the insert band is located radially inwardly of the endless flexible torque transmitter. The traveling insert band has leading and trailing ends located in substantially circumferentially opposed juxtaposition when the traveling insert band operatively engages one of the wheels. Mechanisms are also provided selectively to derail the leading end of the traveling insert band from that wheel operatively engaged thereby.
    Type: Grant
    Filed: October 22, 1992
    Date of Patent: September 21, 1993
    Assignee: General Motors Corporation
    Inventor: Hamid Vahabzadeh
  • Patent number: 5236401
    Abstract: A driving belt for stepless speed variation capable of smoothly traveling and accomplishing power transmission with high efficiency. The driving belt includes an endless metal strip consisting of a plurality of first metal strip elements and a second metal strip element formed into a length larger than the first metal strip elements, a plurality of blocks each provided at a center of an upper portion thereof with a groove through which the endless belt is fittedly inserted and having both side surfaces in a direction of advance of the driving belt curved, and a plurality of pins each arranged so as to extend across the groove of the block. The second metal strip element is formed into a corrugated shape, resulting in exhibiting elastic force and the both side surfaces each are formed so as to have a center of curvature defined at an intermediate position of a depth of the groove, so that the blocks adjacent to each other may abut against each other near the metal strip.
    Type: Grant
    Filed: April 24, 1992
    Date of Patent: August 17, 1993
    Assignee: Matsumoto Sangyo Kabushiki Kaisha
    Inventor: Mu Matsuo
  • Patent number: 5215505
    Abstract: An endless belt, for use in a variable speed transmission comprising at least one pulley having opposed conical surfaces, comprises a loop-shaped stack of I-shaped friction plates having left and right recesses, with chains located in the recesses in side-by-side relationship. Each chain comprises interleaved link plates, and the chains are out of phase with each other by one-half the pitch distance. Each friction plate is engaged, in driving relationship, in notches in the link plates of one of the two chains, and the next friction plate is engaged, in driving relationship, in notches of the link plates of the other chain. There are no friction plates which are not engaged in notches of the link plates. Consequently less pressure and improved friction are achieved. The preferred link plate comprises two separable layers formed by stamping. In one preferred embodiment, the chains comprise interleaved groups of link plates of uniform thickness, and each group consists of the same number of link plates.
    Type: Grant
    Filed: July 10, 1992
    Date of Patent: June 1, 1993
    Assignee: Tsubakimoto Chain Co.
    Inventors: Yoshiaki Sugimoto, Toshihiro Hosokawa, Hiroki Ishida, Nobuyuki Fujimoto
  • Patent number: 5180345
    Abstract: The invention relates to a driving belt of substantially trapezoidal cross section for application on V-shaped pulleys, comprising an endless carrier with at least one endless strip-like band and a plurality of transverse elements slidably arranged on said carrier having slots for receiving the carrier.Each slot is bordered by a contact surface for contacting the inner side of the carrier and a contact surface for contacting the outer side of the carrier. The contact surface contacting the outer side of the carrier has been curved convexly in the transverse direction in respect of the carrier in order to achieve an optimum contacting between transverse element and carrier, thus decreasing wear and improving life.
    Type: Grant
    Filed: November 9, 1983
    Date of Patent: January 19, 1993
    Assignee: Van Doorne's Transmissie, B.V.
    Inventor: Cornelis P. Van der Zande
  • Patent number: 5173361
    Abstract: A fiber reinforced composite belt in which a stainless steel fiber aggregate having a diameter of from 5 to 50 .mu.m and impregnated with 1 to 10% by weight of a thermosetting resin such as an epoxy resin is buried as a reinforcing material in a base material for belt, and a process for preparing the above-mentioned fiber reinforced composite belt are provided. This fiber reinforced composite belt is much more excellent in flex resistance, durability, water resistance and coefficient of linear expansion, as compared with not only a rubber belt and a synthetic resin elastomer belt but also belts reinforced by directly burying a stainless steel fiber and a steel fiber in the rubber.
    Type: Grant
    Filed: January 17, 1991
    Date of Patent: December 22, 1992
    Assignees: Nippon Steel Chemical Co., Tsubakimoto Chain Co.
    Inventors: Hiroaki Yamashita, Takashi Toyota
  • Patent number: 5171189
    Abstract: A flexible transmission device for continuously variable transmissions comprises an endless flexible connecting element and a plurality of transverse links. Each link includes at least one groove into which is engaged the flexible connecting element. The links are, preferably, covered by a fabric, and the exterior surface of the fabric is for being positioned in contact with the flanges of the pulleys over which the belt is positioned and operates.
    Type: Grant
    Filed: April 1, 1991
    Date of Patent: December 15, 1992
    Assignee: Caoutchouc Manufacture et Plastiques S.A.
    Inventors: Louis Douhairet, Daniel Play, Roger Trinquard
  • Patent number: 5169369
    Abstract: A force transmission belt having a plurality of block bodies each with laterally spaced pulley-engaging surfaces, an endless band to be trained about a pair of pulleys, cooperating structure on the endless band and the block bodies for maintaining the block bodies in an operative position on the endless band with the block bodies slidable lengthwise of the endless band and positioned so that the laterally spaced pulley-engaging surfaces frictionally engage a pulley about which the endless band is trained, and channel structure in at least one of the block bodies for guiding lubricant from a point between adjacent, engaged block bodies and the endless band to a location outside of the one block body to minimize wear between the adjacent block bodies during operation.
    Type: Grant
    Filed: July 24, 1991
    Date of Patent: December 8, 1992
    Assignee: Mitsuboshi Belting Ltd.
    Inventors: Takashi Masuda, Masayuki Tanaka, Katsuji Tsuji, Toshiaki Aragane, Yasutsugu Kunihiro
  • Patent number: 5154675
    Abstract: Transverse elements (9) for a driving belt (7) abut with their principal sides (21, 22) against one another. At least one side has a profiling being convex to allow a misalignment between discs (1, 2) and (4, 5) where between the belt (7) is running to be absorbed by effecting a tilting of neighboring elements.
    Type: Grant
    Filed: March 21, 1991
    Date of Patent: October 13, 1992
    Assignee: Van Doorne's Transmissie B.V.
    Inventor: Gijsbertus C. F. Roovers