Belt Has Oppositely Facing Side Drive Surfaces (e.g., "v-belt", Etc.) Patents (Class 474/242)
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Patent number: 6336884Abstract: 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: GrantFiled: April 20, 2000Date of Patent: January 8, 2002Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Hiroshi Wakui, Shigeru Kanehara
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Patent number: 6334830Abstract: 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: GrantFiled: October 26, 1999Date of Patent: January 1, 2002Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Tooru Yagasaki, Shigeru Kanehara, Hideaki Aoyama
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Patent number: 6334831Abstract: 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: GrantFiled: January 18, 2000Date of Patent: January 1, 2002Assignee: Van Doorne's Transmissie B.V.Inventors: Paulus Maria Smeets, Roland Theo Anton Kals
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Publication number: 20010056002Abstract: 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: ApplicationFiled: June 19, 2001Publication date: December 27, 2001Applicant: Van Doorne's Transmissie b.v.,Inventors: Johannes Hendrikus Van Lith, Jeroen Herman Van Liempd, Marco Van Schaik
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Patent number: 6332854Abstract: 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: GrantFiled: June 22, 2000Date of Patent: December 25, 2001Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Ken Kanokogi, Takamichi Shimada
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Publication number: 20010053726Abstract: 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: ApplicationFiled: June 4, 2001Publication date: December 20, 2001Inventor: Heiko Sattler
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Publication number: 20010053727Abstract: 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: ApplicationFiled: June 11, 2001Publication date: December 20, 2001Inventors: Eijiro Nakashima, Hiroyuki Sakanaka, Hiroyuki Sato
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Publication number: 20010051554Abstract: 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: ApplicationFiled: August 23, 1999Publication date: December 13, 2001Inventors: SHIGERU KANEHARA, TAKAMICHI SHIMADA
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Publication number: 20010041636Abstract: 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: ApplicationFiled: May 8, 2001Publication date: November 15, 2001Inventors: Alexander Serkh, Joseph A. Beaupied, Scott Ciemniecki
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Publication number: 20010039225Abstract: 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: ApplicationFiled: March 21, 2001Publication date: November 8, 2001Inventor: Shigeru Kanehara
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Publication number: 20010036558Abstract: 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: ApplicationFiled: January 12, 2001Publication date: November 1, 2001Inventors: Kenneth Lewtas, Vincent B.B.G. Gallez, Eric P. Jourdain, Thomas Jay Reynolds, Giandomenico Stella
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Patent number: 6306055Abstract: 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: GrantFiled: February 22, 2000Date of Patent: October 23, 2001Assignee: The Gates CorporationInventor: Alexander Serkh
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Patent number: 6299559Abstract: 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: GrantFiled: July 30, 1999Date of Patent: October 9, 2001Assignee: LuK Getriebe-Systeme GmbHInventor: Oswald Friedmann
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Patent number: 6293886Abstract: 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: GrantFiled: October 8, 1999Date of Patent: September 25, 2001Assignee: Bando Chemical Industries Ltd.Inventors: Hirokazu Ohkawa, Mitsuhiko Takahashi
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Publication number: 20010019979Abstract: 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: ApplicationFiled: February 2, 2001Publication date: September 6, 2001Inventors: Shozo Wakabayashi, Niroyuki Takeda
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Patent number: 6283882Abstract: 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: GrantFiled: October 8, 1999Date of Patent: September 4, 2001Assignees: Bando Chemical Industries, Ltd., Aichi Machine Industry Co., Ltd.Inventors: Keizo Nonaka, Mitsuhiko Takahashi, Hiroyuki Sakanaka
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Patent number: 6273837Abstract: 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: GrantFiled: September 24, 1999Date of Patent: August 14, 2001Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Hideaki Yoshida, Takamichi Shimada, Hirofumi Akagi
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Patent number: 6270437Abstract: 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: GrantFiled: August 31, 1999Date of Patent: August 7, 2001Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Hideaki Yoshida, Takamichi Shimada
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Publication number: 20010004616Abstract: 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: ApplicationFiled: December 15, 2000Publication date: June 21, 2001Inventors: 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
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Patent number: 6238313Abstract: 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: GrantFiled: July 30, 1999Date of Patent: May 29, 2001Assignee: Van Doorne's Transmissie B.V.Inventors: Paulus Maria Smeets, Wilhelmus Peter Catharina Peters, Johannes Hendrikus Lith
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Patent number: 6217471Abstract: 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: GrantFiled: April 14, 1999Date of Patent: April 17, 2001Assignee: 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
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Patent number: 6217472Abstract: 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: GrantFiled: June 23, 1999Date of Patent: April 17, 2001Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Hiroshi Fujioka, Kouhei Ohsono
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Patent number: 6203460Abstract: 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: GrantFiled: April 23, 1999Date of Patent: March 20, 2001Assignee: BorgWarner Inc.Inventors: Laurence Parks, Mark D. Reese
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Patent number: 6123637Abstract: 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: GrantFiled: June 4, 1999Date of Patent: September 26, 2000Assignee: Honda Giken Kogyo Kabushiki KaishaInventor: Toru Yagasaki
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Patent number: 6102823Abstract: 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: GrantFiled: October 7, 1992Date of Patent: August 15, 2000Assignee: Mitsuboshi Belting Ltd.Inventors: Yasutoshi Hosokawa, Akiyoshi Homan, Kiyokazu Wada, Koji Matsuo, Isao Koyama, Shinichi Takagi, Mitsuo Ishikawa
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Patent number: 6090004Abstract: 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: GrantFiled: October 9, 1998Date of Patent: July 18, 2000Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Shigeru Kanehara, Hideaki Yoshida, Hirofumi Akagi, Tooru Yagasaki, Tooru Fujii, Shinya Kuwabara
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Patent number: 6074317Abstract: 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: GrantFiled: December 16, 1997Date of Patent: June 13, 2000Assignee: Nissan Motor Co., Ltd.Inventor: Daisuke Kobayashi
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Patent number: 5993345Abstract: 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: GrantFiled: October 27, 1997Date of Patent: November 30, 1999Assignee: Borg-Warner Automotive, Inc.Inventor: Philip J. Mott
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Patent number: 5843258Abstract: 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: GrantFiled: September 10, 1996Date of Patent: December 1, 1998Assignee: MBL (USA) CorporationInventor: Satoshi Murakami
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Patent number: 5792013Abstract: 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: GrantFiled: March 19, 1997Date of Patent: August 11, 1998Assignees: CVT Verwaltungs GmbH & Co., Patentverwertungs KGInventors: Johannes Heinrich, Manfred Maier, Klaus Sohnge, Dirk Weitzel, Georg Kell, Gert Schonnenbeck, Peter Wagner
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Patent number: 5728021Abstract: 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: GrantFiled: May 3, 1996Date of Patent: March 17, 1998Assignee: Gear Chain Industrial B.V.Inventors: Jacobus H. M. van Rooij, Theodorus P. M. Cadee
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Patent number: 5697571Abstract: 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: GrantFiled: May 17, 1996Date of Patent: December 16, 1997Assignee: AlliedSignal Inc.Inventors: Niels Dybro, Jason Raines
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Patent number: 5533940Abstract: 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: GrantFiled: May 8, 1995Date of Patent: July 9, 1996Assignee: Van Doorne's Transmissie B.V.Inventor: Paulus M. Smeets
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Patent number: 5439423Abstract: 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: GrantFiled: April 8, 1994Date of Patent: August 8, 1995Assignees: Borg-Warner Automotive, Inc., Toyota Jidosha Kabushiki KaishaInventors: Shigeru Okuwaki, Yukio Tomimura
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Patent number: 5439422Abstract: 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: GrantFiled: May 24, 1994Date of Patent: August 8, 1995Assignee: Van Doorne's Transmissie B.V.Inventor: Paulus M. Smeets
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Patent number: 5374223Abstract: 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: GrantFiled: August 17, 1993Date of Patent: December 20, 1994Assignee: Van Doorne's Transmissie B.V.Inventor: Emery F. M. Hendriks
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Patent number: 5364315Abstract: 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: GrantFiled: May 14, 1993Date of Patent: November 15, 1994Assignee: Mitsuboshi Belting Ltd.Inventor: Toshimi Kumazaki
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Patent number: 5346440Abstract: 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: GrantFiled: March 3, 1993Date of Patent: September 13, 1994Assignee: Van Doorne's Transmissie B.V.Inventor: Paul M. Smeets
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Patent number: 5342251Abstract: 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: GrantFiled: May 28, 1993Date of Patent: August 30, 1994Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Shigeru Kanehara, Masashi Nakaoka
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Patent number: 5328412Abstract: 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: GrantFiled: October 21, 1992Date of Patent: July 12, 1994Assignee: Borg-Warner Automotive, Inc.Inventor: Metin M. Durum
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Patent number: 5318484Abstract: 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: GrantFiled: April 6, 1993Date of Patent: June 7, 1994Inventor: Lloyd M. Forster
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Patent number: 5263904Abstract: 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: GrantFiled: July 9, 1992Date of Patent: November 23, 1993Assignee: Van Doorne's Transmissie B.V.Inventor: Jeroen H. van Liempd
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Patent number: 5246406Abstract: 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: GrantFiled: October 22, 1992Date of Patent: September 21, 1993Assignee: General Motors CorporationInventor: Hamid Vahabzadeh
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Patent number: 5236401Abstract: 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: GrantFiled: April 24, 1992Date of Patent: August 17, 1993Assignee: Matsumoto Sangyo Kabushiki KaishaInventor: Mu Matsuo
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Patent number: 5215505Abstract: 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: GrantFiled: July 10, 1992Date of Patent: June 1, 1993Assignee: Tsubakimoto Chain Co.Inventors: Yoshiaki Sugimoto, Toshihiro Hosokawa, Hiroki Ishida, Nobuyuki Fujimoto
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Patent number: 5180345Abstract: 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: GrantFiled: November 9, 1983Date of Patent: January 19, 1993Assignee: Van Doorne's Transmissie, B.V.Inventor: Cornelis P. Van der Zande
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Patent number: 5173361Abstract: 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: GrantFiled: January 17, 1991Date of Patent: December 22, 1992Assignees: Nippon Steel Chemical Co., Tsubakimoto Chain Co.Inventors: Hiroaki Yamashita, Takashi Toyota
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Patent number: 5171189Abstract: 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: GrantFiled: April 1, 1991Date of Patent: December 15, 1992Assignee: Caoutchouc Manufacture et Plastiques S.A.Inventors: Louis Douhairet, Daniel Play, Roger Trinquard
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Patent number: 5169369Abstract: 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: GrantFiled: July 24, 1991Date of Patent: December 8, 1992Assignee: Mitsuboshi Belting Ltd.Inventors: Takashi Masuda, Masayuki Tanaka, Katsuji Tsuji, Toshiaki Aragane, Yasutsugu Kunihiro
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Patent number: 5154675Abstract: 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: GrantFiled: March 21, 1991Date of Patent: October 13, 1992Assignee: Van Doorne's Transmissie B.V.Inventor: Gijsbertus C. F. Roovers