Drive Surfaces On Longitudinally Spaced Teeth Formed Integral With Flexible Member Patents (Class 474/205)
  • Patent number: 10767727
    Abstract: A toothed belt is provided with toothed portions arranged at a regular pitch in a belt length direction. A belt body is made of a rubber composition containing, as a main ingredient of a rubber component, ethylene-?-olefin elastomer having an ethylene content of 44% by mass to 66% by mass. A reinforcing fabric is adhered to a surface of the belt body on a toothed side, with a reinforcing fabric adhesion coat interposed between the reinforcing fabric and the belt body. The reinforcing fabric adhesion coat is made of a rubber composition containing hydrogenated nitrile-butadiene rubber as a main ingredient of a rubber component.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: September 8, 2020
    Assignee: BANDO CHEMICAL INDUSTRIES, LTD.
    Inventors: Yasuhiko Yoshida, Atsushi Taga, Yoshitaka Meki, Eijiro Nakashima
  • Patent number: 10731726
    Abstract: A belt made up of an elastomeric belt body, an electrically conductive tensile cord such as carbon fiber cord in a cord layer reinforcing the belt body, an outer layer of electrically conductive thermoplastic material such as polypropylene film, and an electrically conductive fabric layer residing between the tensile cord layer and the outer layer and providing electrical continuity between the outer layer and the tensile cord. An electrically conductive thread may be woven in the fabric and may present at both surfaces of the fabric and contact both the outer layer and the tensile cord to provide the electrical continuity there between.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: August 4, 2020
    Assignee: Gates Corporation
    Inventors: Christopher M. Thomas, Joseph R. Duke, Jr., Karla J. Bier, Cathy Peake Wilson
  • Patent number: 10570990
    Abstract: An endless flat belt includes an inner rubber layer 1, a cord core 11 buried in the inner rubber layer 1 and spirally wound at a predetermined pitch in a width direction of the belt, and a reinforcement fabric 2 stuck to the inner rubber layer 1. The cord core comprises polyamide fiber. Opposite ends of the reinforcement fabric 2 are connected with each other into an endless form by adhesion or sewing. A surface rubber layer 3 is stuck to a surface of the reinforcement fabric 2 which is opposite a surface thereof stuck to the inner rubber layer 1.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: February 25, 2020
    Assignee: NITTA CORPORATION
    Inventors: Haruhide Okamura, Yoshihiro Konishi, Mitsuaki Ono, Naomichi Nakai, Naoki Kai
  • Patent number: 10408300
    Abstract: A toothed belt includes an uneven surface formed due to a weave pattern of a woven fabric or a knit loop pattern of a knitted fabric at a tooth bottom portion between toothed portions.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: September 10, 2019
    Assignee: Bando Chemical Industries, Ltd.
    Inventors: Yuji Sekiguchi, Shinji Suzuki
  • Patent number: 10359095
    Abstract: A toothed belt includes a plurality of tooth parts that are disposed at predetermined intervals along the longitudinal direction and contain a rubber composition (A) as a base material and a back side that has a cord embedded therein and contains a rubber composition (B) as a base material, in which the cord contains a Lang-twisted carbon fiber and is formed in a diameter of 1.1 mm or more and 2.5 mm or less and the rubber composition (B) constituting the back side has a hardness of from 80 degrees to 89 degrees in JIS-A hardness.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: July 23, 2019
    Assignee: Mitsuboshi Belting Ltd.
    Inventors: Masakuni Yoshida, Hirofumi Okabe
  • Patent number: 10343358
    Abstract: A surface sheet which is to constitute a surface layer and a core sheet which is to constitute a core layer are prepared. A plurality of ridges is formed on the core sheet, and the surface sheet is bonded such that the surface sheet covers the plurality of ridges, thereby forming compression layer-forming portions.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: July 9, 2019
    Assignee: BANDO CHEMICAL INDUSTRIES, LTD.
    Inventors: Naohisa Harushige, Yohei Hattori, Koichi Hosokawa, Hisashi Izumi, Tomoaki Hata
  • Patent number: 10006519
    Abstract: The present invention relates to a toothed belt containing tooth parts that are disposed at predetermined intervals along a belt longitudinal direction, a cord, and a back side that has the cord embedded therein, in which the cord contains a Lang-twisted glass fiber, an adhesion treatment layer, and an overcoat treatment layer, the overcoat treatment layer is formed on a surface of the adhesion treatment layer, the back side is composed of a rubber composition, and the rubber composition contains from 5 parts by mass to 20 parts by mass of a plasticizer based on 100 parts by mass of a rubber component.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: June 26, 2018
    Assignee: Mitsuboshi Belting Ltd.
    Inventors: Isao Ideguchi, Hiroaki Ikegami
  • Patent number: 9382969
    Abstract: A belt comprises at least a belt body made of a polymer material having elastic properties, the belt including a cover layer as a belt backing, a substructure having a force-transmission zone, and a tension member in a ribbed design embedded in the belt body. The tension member is prepared with a cross-linked polyurethane in such a way that the polyurethane fills at least part of the tension member cavities. The polyurethane filling material enters into a mechanical connection to the tension member on the one hand and an adhesive connection to the belt body on the other hand. The polyurethane filling material has a Shore A hardness that is 0.5 to 10 times harder than the Shore A hardness of the belt body. The belt body is preferably likewise made of cross-linked polyurethane, in particular using a carbon tension member.
    Type: Grant
    Filed: May 2, 2014
    Date of Patent: July 5, 2016
    Assignee: ContiTech Antriebssysteme GmbH
    Inventors: Andre Kucharczyk, Hubert Goeser, Markus Obert, Stephan Brocke
  • Patent number: 9353827
    Abstract: Configuring the inside of a tooth portion 15 of a toothed belt 10 with a core rubber layer 14 and the outer periphery of the tooth portion 15 with a tooth rubber layer 12. Also, including short fibers in the core rubber layer 14. The tooth rubber layer 12 is formed by curing a rubber composition containing 10 parts by weight or less high-density polyethylene with 100 parts by weight of matrix rubber. The value of tan ? for the tooth rubber layer 12 at 100-120° C. is maintained at 0.100-0.120.
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: May 31, 2016
    Assignees: GATES UNITTA ASIA COMPANY, HONDA MOTOR CO., LTD.
    Inventors: Shinji Uchigashima, Mitsuhiro Yamada, Yohei Harada, Akira Terasaki, Kaoru Shimamura
  • Patent number: 9347521
    Abstract: A vulcanized rubber CVT belt in the form of an endless V-belt having a belt body with angled sides, a tensile cord layer of helically spiraled tensile cord embedded in the belt body, an overcord rubber layer, and an undercord rubber layer, wherein the tensile cord is a twisted, single-tow bundle of continuous-filament, carbon fiber impregnated with an adhesive treatment and/or overcoated with adhesive compatible with the rubber of the tensile cord layer. The tow may be 18K. The carbon fiber may have a filament diameter of from about 6.0 to about 6.4-micron, a tensile modulus of from about 200 to about 300 GPa, an elongation at break of from about 1.9% to about 2.3%.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: May 24, 2016
    Assignee: Gates Corporation
    Inventors: Ralph Michael Duke, John Graeme Knox
  • Patent number: 9138944
    Abstract: A flexible composite with integral flights is provided and methods for making the same. The composite is made from, for example, silicone rubber, urethane rubber, polytetrafluoroethylene or other polymer. The composites are useful for making conveyor belts for use in high temperature food processing, and particularly for contact toasters. The conveyor belts are an improvement over the prior art in that they prevent slippage of the articles conveyed, may be manufactured at low cost, and are relatively easy to clean.
    Type: Grant
    Filed: January 5, 2009
    Date of Patent: September 22, 2015
    Assignee: SAINT-GOBAIN PERFORMANCE PLASTICS CORPORATION
    Inventors: Frank M. Keese, Kevin C. Bauler, Gerard T. Buss, John A. Effenberger
  • Patent number: 9127746
    Abstract: A power transmission belt having a body with an inside, an outside, and a length. The body has a tension section and a compression section, and teeth and troughs alternating lengthwise of the body. A layer on the body in which the teeth are formed has a surface facing in one of an inside and outside direction on which alternating protrusions and recesses are formed against which another component on the body is placed and conforms.
    Type: Grant
    Filed: June 6, 2011
    Date of Patent: September 8, 2015
    Assignee: Mitsuboshi Belting Ltd.
    Inventors: Takafumi Onita, Akihiro Nagata
  • Patent number: 9097250
    Abstract: A pump rotor is an inner rotor of an internal gear pump, the inner rotor having a tooth profile, wherein a half-tooth portion of the tooth profile is formed of three tooth-profile formation circles that are elliptical or true-circular. Two of the tooth-profile formation circles are a combination of a small tooth-profile formation circle and a large tooth-profile formation circle in which the small tooth-profile formation circle is inscribed and is entirely included. A portion of the small tooth-profile formation circle forms an addendum portion of the half-tooth portion. A portion of the large tooth-profile formation circle in which the small tooth-profile formation circle is inscribed and is entirely included forms an engagement portion of the half-tooth portion. A portion of another tooth-profile formation circle that circumscribes the large tooth-profile formation circle forms a dedendum portion of the half-tooth portion.
    Type: Grant
    Filed: November 6, 2012
    Date of Patent: August 4, 2015
    Assignee: YAMADA MANUFACTURING CO., LTD.
    Inventors: Kenichi Fujiki, Masato Izutsu
  • Patent number: 9056410
    Abstract: A foam cushion pad formation assembly that includes a conveyance assembly having at least one moving conveyor component presenting a pad shape formation surface, which surface is convoluted and arranged to shape sealed enclosures of a pad chain received by the conveyance assembly. A separation device is provided to separate shaped pads of the pad chain received by said conveyor device. The shaped pads include convoluted surface that are formed by way of gripping projection and recesses combinations in the moving conveyor component. Embodiments include sensing for non separated pads from a downstream end of the bag chain, pad chain separation enhancement devices, and various control system including the requirement of confirmation of separation before feeding a new pad enclosure as in one containing liquid polyurethane precursor chemicals.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: June 16, 2015
    Assignee: PREGIS INTELLIPACK CORP.
    Inventors: Scott Burke, Todd Hanna
  • Patent number: 9050768
    Abstract: A process for producing a support belt for an elevator system includes steps of: placing at least one cable-shaped tension support in position; embedding the tension support in a first belt layer made from a first plasticizable material to produce a partial belt having a first outer surface and a surface which forms a connecting plane, wherein parts of the tension support project out of the connecting plane and at least parts of the projecting portion of the tension support are covered by the first plasticizable material; and integrally forming a second belt layer made from a second plasticizable material on the connecting surface of the partial belt and the projecting portions of the tension support so as to produce a support belt having the first outer surface on the side of the first belt layer and a second outer surface on the side of the second belt layer.
    Type: Grant
    Filed: April 14, 2008
    Date of Patent: June 9, 2015
    Assignee: Inventio AG
    Inventors: Franco Urbani, Ernst Ach
  • Publication number: 20150141186
    Abstract: A notched transmission belt has a plurality of notches whose bottom in a cross-section taken along a plane orthogonal to the width direction of the belt includes a linear portion at a center, and recessed curved portions continuously formed at both sides of the linear portion.
    Type: Application
    Filed: January 26, 2015
    Publication date: May 21, 2015
    Inventors: Tadahiko Noguchi, Kyotaro Yanagi, Tomonari Nakamura, Takamitsu Akashi, Toshiaki Kitai
  • Patent number: 8979690
    Abstract: A toothed belt has therein a core wire (3) including a core thread (1) made of aramid fiber and a filament thread (2) made of nylon fiber, and has belt tooth portions (4) and belt groove portions (5) alternately formed therealong. The core wire (3), the belt tooth portions (4), and the belt groove portions (5) are integrated with one another by a rubber material (7). It should be noted herein that the core thread (1) and the filament thread (2) are integrally twined around each other so that the filament thread (2) is formed in the shape of a plurality of loops around the core thread (1). The filament thread (2) in the shape of the loops enters tooth root portions (9) of the belt tooth portions (4) to be arranged therein. As a result, the tooth root portions (9) are strengthened.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: March 17, 2015
    Assignees: Toyota Jidosha Kabushiki Kaisha, Kurashiki Boseki Kabushiki Kaisha
    Inventors: Hidetoshi Yomoda, Takashi Nagase, Tatsuya Kitagawa, Kazuya Kusu, Kiyotaka Miyagai, Akira Kasuya
  • Patent number: 8932165
    Abstract: A toothed belt includes a body, at least one tooth formed of the body, a jacket disposed along a peripheral surface of the at least one tooth and having a compressed thickness in the range from 0.5 mm to about 0.8 mm, and at least one cord embedded in the body and having a diameter. The at least one cord and said jacket have a ratio of said cord diameter to said jacket thickness of less than 1.8, and said cord diameter and said jacket thickness describe an optical belt PLD of about 1.2 mm or less.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: January 13, 2015
    Assignee: The Gates Corporation
    Inventor: John Graeme Knox
  • Publication number: 20150005123
    Abstract: A fabric for transmission belts is described that is made entirely with polyaramid fibres. Furthermore, a transmission belt is provided that comprises a body made of a first elastomeric material, in which a plurality of resistant longitudinal filiform inserts is embedded, and a working surface covered in a covering fabric comprising polyaramid fibres in weft and warp yarns; advantageously, the transmission belt is a toothed belt. According to the present invention, in use, the belt is in continuous contact with oil or partially immersed in oil.
    Type: Application
    Filed: January 31, 2013
    Publication date: January 1, 2015
    Inventors: Marco Di Meco, Carlo Baldovino, Marino Petaccia
  • Publication number: 20150005122
    Abstract: An endless drive belt is formed by creating a connection between two ends of a thermoplastic belt segment by fusing the cut ends of the thermoplastic material together. The thermoplastic belt segment has a “T” shaped cross section comprising a flat belt portion and a guide rib portion. The guide rib portion has equally spaced “V shaped notches imbedded therein that enable the stiff thermoplastic belt to bend at the notches, and not at the teeth defined between the notches to create bending portions that alternate with stiff portions. The two ends of the thermoplastic belt segment are cut in zigzagging interlocking fingers that intermesh and cut through both the flat belt portion and the teeth and notches in the guide rib portion. The zigzagging interlocking fingers are cut with the fingertips of each end of the belt defining a line that passes through the teeth.
    Type: Application
    Filed: June 27, 2014
    Publication date: January 1, 2015
    Inventors: Kevin Lawrence Klueber, David Martin, JR.
  • Patent number: 8859081
    Abstract: There is described a toothed belt comprising an elastomeric material body, in which a plurality of longitudinal filiform resistant inserts is embedded, and a toothing coated by a coating fabric. A resistant layer that increases the resistance to abrasion and thus the resistance to wear of the toothed belt is adhered over the coating fabric. The resistant layer comprises a vulcanization agent and more than 75% of an elastomer formed by at least one copolymer modified with an unsaturated carboxylic acid salt and obtained from a dien monomer and a nitrile group-containing monomer. The resistant layer is advantageously separated from the fabric and is calendered on the fabric itself.
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: October 14, 2014
    Assignee: Dayco Europe S.r.l.
    Inventors: Carlo Baldovino, Adriano Rolando
  • Patent number: 8794387
    Abstract: A traction system includes a composite rope (1), especially for an elevator. The composite rope (1) is driveable by a traction sheave (6). The traction system has a composite rope that is easy to handle, whereby high traction forces can be transferred, and the composite rope enables a narrower drive unit than known belt technology. To this end, the composite rope has parallel individual tension members (4) surrounded by an elastomer material which are interconnected by an elastomer connecting layer (5) on one side, and the tension members (4) engage in corresponding grooves (7) of the traction sheave (6). The penetration depth of the individual ropes (2) of the tension members (4) in the grooves of the traction sheave (6) is at least 25% of the diameter (d) of the individual ropes (2).
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: August 5, 2014
    Assignee: ContiTech Antriebssysteme GmbH
    Inventor: Hubert Göser
  • Patent number: 8789658
    Abstract: A traction device includes tension members (2) coated with an elastomer material to form jacketed tension members (3). The jacketed tension members (3) are arranged next to each other in a plane in the cross section of the traction device, at such a distance from each other that there is a clear space (6) between each two mutually adjacent ones of the jacketed tension members (3). The jacketed tension members (3) are connected at the back thereof by a back layer. The clear space (6) begins on the side facing away from the back layer (4) and extends at least beyond the center point (5) of the tension member, and the ratio of the second diameter (d2) of the jacketed tension member (3) in relation to the first diameter (d1) of the tension member (2) is between 1.05 and 2.25.
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: July 29, 2014
    Assignee: ContiTech Antriebssysteme GmbH
    Inventor: Hubert Göser
  • Publication number: 20140206487
    Abstract: A toothed belt is provided that has excellent environment resistance, high load resistance, high stiffness, and achieves high accuracy, light weight, compactness and low noise. A toothed belt is provided with a belt body including a plurality of core wires juxtaposed in the width direction of a rubber portion, a plurality of tooth rubber portions formed on one surface of the belt body, and a tooth cloth covering the surface of the tooth rubber portions. The rubber portion contains dioctyl sebacate and trimellitic acid ester in a mass part ratio of 1:19 to 1:1, the mass percentage of the dioctyl sebacate to the whole quantity of the rubber portion is less than 4 mass %, and the mass percentage of the total quantity of the dioctyl sebacate and the trimellitic acid ester to the whole quantity of the rubber portion is in a range from 4 mass % to 8 mass %.
    Type: Application
    Filed: January 17, 2014
    Publication date: July 24, 2014
    Inventors: Masato Tomobuchi, Hideyuki Sato, Masaru Kanamori, Shoichiro Shimizu
  • Publication number: 20140162822
    Abstract: A durable gear strap couples components in an imaging device to a driving force. The gear strap includes a strip having a plurality of rigid sections and a plurality of flexible sections. Gear teeth on the strip enable rotation of a gear to move the gear strap in a track. At least one engagement member extends from one of the rigid sections to couple a component to the gear strap for movement.
    Type: Application
    Filed: February 18, 2014
    Publication date: June 12, 2014
    Applicant: Xerox Corporation
    Inventors: Timothy Carlyle Shaw, Jamie Kelso, David W. Johnson
  • Publication number: 20140080647
    Abstract: Provided is a toothed belt that has satisfactory durability even under high-temperature and high-load conditions or within an oil or water environment. The toothed belt 10 comprises a belt body 13 including a tooth rubber portion 11 and a backing rubber portion 12. A surface of the tooth rubber portion 11 is covered with a facing fabric 20. The facing fabric 20 is subjected to RFL treatment, and has an outer surface 21 covered with a hardened material of a first epoxy resin. The softening point of the hardened material of the first epoxy resin is, for example, 110° C. or higher. The epoxy equivalent of the first epoxy resin is, for example, 100 to 1500 g/eq. Alternatively, the facing fabric 20 is subjected to impregnation treatment with a treatment agent including a second epoxy resin, a hardener for hardening the second epoxy resin, and a rubber component.
    Type: Application
    Filed: February 16, 2012
    Publication date: March 20, 2014
    Applicant: THE GATES CORPORATION
    Inventors: Keiji Sakamoto, Shinji Uchigashima, Masanao Sakamoto
  • Patent number: 8632432
    Abstract: A supporting and drive belt including a belt body or sheathing which encloses tensile carriers. The running surface of the belt can be flat and parallel to the belt back or have trapezium-shaped or semicircular ribs and grooves, wherein the profile of a drive pulley or of a deflecting pulley is approximately complementary to the running surface of the belt. One or more tensile carriers are provided for each rib, wherein the tensile carriers are laid or stranded alternately in the “Z” direction and the “S” direction.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: January 21, 2014
    Assignee: Inventio AG
    Inventors: Adolf Bissig, Alessandro D'Apice, Herbert Bachmann, Manfred Wirth, Roland Lorenz, Tobias Noseda, Florian Dold, Claudio De Angelis
  • Publication number: 20130337956
    Abstract: The present invention relates to a cover fabric for power transmission belt, which covers at least a part of working surface of a power transmission belt coming into contact or engage with a pulley and thereby transmitting power, in which the cover fabric contains a yarn, the yarn contains at least a fluorine-based fiber, and the fluorine-based fiber is formed of at least one slit yarn, and the cover fabric is subjected to an adhesion treatment.
    Type: Application
    Filed: June 14, 2013
    Publication date: December 19, 2013
    Inventors: Akihiko Motozaki, Akira Takenaka
  • Patent number: 8568260
    Abstract: Toothed belt for use with oil comprising a body and a plurality of teeth extending from at least a surface of the body; the teeth are covered by a coating fabric. The toothed belt comprises a plurality of resistant inserts produced from at least a first and a second material. Preferably, the resistant inserts are constituted by glass fibers and carbon fibers. Preferably, a resistant layer is made to adhere over the coating fabric, said layer comprising a fluorine based plastomer with the addition of an elastomeric material, wherein the plastomer is present in a greater amount than the elastomeric material. The elastomeric material forming the body of the belt is preferably a copolymer obtained from a diene monomer and a monomer containing nitrile groups, wherein the nitrile groups are between 33% and 49%, preferably 39 weight % with respect to the copolymer.
    Type: Grant
    Filed: September 29, 2004
    Date of Patent: October 29, 2013
    Assignee: Dayco Europe S.r.l.
    Inventors: Carlo Baldovino, Marco Di Meco, Tommaso Di Giacomo, Marino Petaccia
  • Publication number: 20130237356
    Abstract: A method of making a belt including the steps of: (a) helically wrapping a fabric strip of predetermined width on a mandrel at a first helix angle; (b) helically winding a tensile cord onto the mandrel over the fabric at a second helix angle less than the first helix angle; (c) wrapping a sheet or a strip of elastomer material around the mandrel over the tensile cord; and (d) curing the elastomer material under pressure to form a belt sleeve. The mandrel may be grooved for making toothed belts. The fabric strip may be preformed. A resulting toothed belt has a fabric seam spanning several teeth and having a helix angle. The seam may be joined.
    Type: Application
    Filed: April 22, 2013
    Publication date: September 12, 2013
    Applicant: THE GATES CORPORATION
    Inventor: Lambert Pasch
  • Patent number: 8512186
    Abstract: A power transmission belt having a body with a length, an inside and an outside. Teeth are spaced along the length of the body. The body is made of rubber in which at least one load carrying member is embedded. The load carrying member extends lengthwise of the body. The rubber in the body is made up of: a) 3 to 7 parts by mass of short fiber blended relative to 100 parts by mass of a polymer that is a hydrogenated nitrile rubber having unsaturated carboxylic acid metal salt formed by mixing the hydrogenated nitrile rubber and the unsaturated carboxylic acid metal salt at a mass ratio of from 100:100 to 100:180; and b) no more than 10 parts by mass of a powdery inorganic filler blended relative to 100 parts by mass of the polymer.
    Type: Grant
    Filed: November 8, 2010
    Date of Patent: August 20, 2013
    Assignee: Mitsuboshi Belting Ltd.
    Inventors: Manabu Mitsutomi, Takayuki Utsumi, Masakuni Yoshida
  • Publication number: 20130190120
    Abstract: A double-cogged V-belt with the upper and lower cog profiles symmetric and having lines (“L”) and arcs (“A”) connected according to a sequence from the center of a root to the center of an adjacent cog of A1-L1-A2-L2 for the lower profile and A3-L3-A4-L4 for the upper profile. The upper and lower pitches may be equal and all the roots aligned, or there may be more upper cogs than lower cogs. Some or all arcs and lines may be connected tangentially.
    Type: Application
    Filed: March 13, 2013
    Publication date: July 25, 2013
    Applicant: THE GATES CORPORATION
    Inventor: Xinjian FAN
  • Patent number: 8475309
    Abstract: Toothed belt comprising a body, a plurality of resistant inserts or cords and a plurality of teeth extending from at least one surface of the body; the teeth are coated with a coating fabric. The body is made of a first elastomeric material formed. The fabric is treated with a fabric treatment comprising a second elastomeric material. The resistant inserts or cords are treated with cord treatment comprising a third elastomeric material. The first, second and third elastomeric material are formed of a mixture of one or more copolymers obtained from diene monomers and monomers containing nitrile groups, in which the nitrile groups are between 30 wt % and 39 wt %.
    Type: Grant
    Filed: January 18, 2007
    Date of Patent: July 2, 2013
    Assignee: Dayco Europe S.R.L.
    Inventors: Marco Di Meco, Carlo Baldovino
  • Patent number: 8425357
    Abstract: A double-cogged V-belt with the upper and lower cog profiles symmetric and having lines (“L”) and arcs (“A”) connected according to a sequence from the center of a root to the center of an adjacent cog of L1-A1-L2-A2-L3 for the upper profile and A3-L5-A4-L6, and with at least one upper root and one lower root substantially aligned with each other, and with the sum of the length of L1 plus the radius of A1 equal to or within 20% of the radius of A3. The upper and lower pitches may be equal and all the roots aligned, or there may be more upper cogs than lower cogs. Some or all arcs and lines may be connected tangentially.
    Type: Grant
    Filed: October 29, 2012
    Date of Patent: April 23, 2013
    Assignee: The Gates Corporation
    Inventors: Xinjian Fan, Wenlong Lu, Yoshitaka Sato
  • Publication number: 20130072335
    Abstract: A toothed belt has therein a core wire (3) including a core thread (1) made of aramid fiber and a filament thread (2) made of nylon fiber, and has belt tooth portions (4) and belt groove portions (5) alternately formed therealong. The core wire (3), the belt tooth portions (4), and the belt groove portions (5) are integrated with one another by a rubber material (7). It should be noted herein that the core thread (1) and the filament thread (2) are integrally twined around each other so that the filament thread (2) is formed in the shape of a plurality of loops around the core thread (1). The filament thread (2) in the shape of the loops enters tooth root portions (9) of the belt tooth portions (4) to be arranged therein. As a result, the tooth root portions (9) are strengthened.
    Type: Application
    Filed: May 24, 2011
    Publication date: March 21, 2013
    Applicants: KURASHIKI BOSEKI KABUSHIKI KAISHA, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hidetoshi Yomoda, Takashi Nagase, Tatsuya Kitagawa, Kazuya Kusu, Kiyotaka Miyagai, Akira Kasuya
  • Publication number: 20130059690
    Abstract: A toothed belt is described, comprising resistant inserts that each have a total diameter, indicated by ?tot, in the range between 0.9 and 3 mm. The resistant insert consist of a core consisting of at least one yarn of fibres of a first material having a diameter ?c and a number N of cover yarns of fibres of a second material. The number of cover yarns N is in the range between 10 and 25 and the N yarns entirely surround the core, moreover the ratios between the total diameter of the resistant insert and the core diameter are in the range 0.4<K<1, where K=?tot/2?(?tot??c)/4.
    Type: Application
    Filed: December 1, 2011
    Publication date: March 7, 2013
    Applicant: Megadyne S.p.A.
    Inventors: Danilo Di Cesare, Ernesto Galan Sanchez
  • Patent number: 8388477
    Abstract: Toothed belt for use in contact with oil and comprising a body and a number of teeth extending from at least one surface of the body; the teeth are coated by a fabric; a resistant layer comprising a plastomer based on fluorine with the addition of elastomeric material, in which the plastomer is present in a larger quantity than the elastomeric material, is applied by adhesion onto the coating fabric. The elastomeric material forming the body of the belt is a copolymer obtained from a dienic monomer and a monomer containing nitrile groups, in which the nitrile groups are between 33% and 49%, preferably 39%, in weight with respect to the copolymer.
    Type: Grant
    Filed: June 4, 2010
    Date of Patent: March 5, 2013
    Assignee: Dayco Europe S.r.l.
    Inventors: Carlo Baldovino, Marco Di Meco, Tommaso Di Giacomo
  • Publication number: 20130053200
    Abstract: A double-cogged V-belt with the upper and lower cog profiles symmetric and having lines (“L”) and arcs (“A”) connected according to a sequence from the center of a root to the center of an adjacent cog of L1-A1-L2-A2-L3 for the upper profile and A3-L5-A4-L6, and with at least one upper root and one lower root substantially aligned with each other, and with the sum of the length of L1 plus the radius of A1 equal to or within 20% of the radius of A3. The upper and lower pitches may be equal and all the roots aligned, or there may be more upper cogs than lower cogs. Some or all arcs and lines may be connected tangentially.
    Type: Application
    Filed: October 29, 2012
    Publication date: February 28, 2013
    Applicant: THE GATES CORPORATION
    Inventors: Xinjian FAN, Wenlong LU, Yoshitaka SATO
  • Publication number: 20130040771
    Abstract: A power transmission belt having an elastic basic body, comprising a top layer as a belt spine and comprising a substructure with a power transmission zone, wherein the basic body is composed of an at least partially vulcanized natural rubber mixture which contains at least one natural rubber component and at least one filler material and at least one reactive diluent in accordance with DIN 55945:2007 March.
    Type: Application
    Filed: October 16, 2012
    Publication date: February 14, 2013
    Applicant: CONTITECH ANTRIEBSSYSTEME GMBH
    Inventor: ContiTech Antriebssysteme GmbH
  • Patent number: 8357065
    Abstract: An endless power transmission belt having a internal lubricating agent-containing fabric element extending along at least the pulley-engaging, power-transmitting surface of the belt, as well as processes for manufacturing same. More particularly, an endless toothed belt having a wear-resistant fabric cover element that comprises at least one internal lubricating agent in the form of one or more clusters within at least a portion of the total thickness of the fabric element.
    Type: Grant
    Filed: June 1, 2006
    Date of Patent: January 22, 2013
    Assignee: The Gates Corporation
    Inventors: Joseph Raleigh Duke, Jr., Tao Yu
  • Patent number: 8333674
    Abstract: A double-cogged V-belt with the upper and lower cog profiles symmetric and having lines (“L”) and arcs (“A”) connected according to a sequence from the center of a root to the center of an adjacent cog of L1-A1-L2-A2-L3 for the upper profile and A3-L5-A4-L6, and with at least one upper root and one lower root substantially aligned with each other, and with the sum of the length of L1 plus the radius of A1 equal to or within 20% of the radius of A3. The upper and lower pitches may be equal and all the roots aligned, or there may be more upper cogs than lower cogs. Some or all arcs and lines may be connected tangentially.
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: December 18, 2012
    Assignee: The Gates Corporation
    Inventors: Xinjian Fan, Wenlong Lu, Yoshitaka Sato
  • Publication number: 20120309573
    Abstract: A drive belt with a main body made of a polymeric material having resilient properties, comprising a top layer as the belt rear face and a base having a force transfer zone, wherein moreover at least one tension cord is embedded in the main body. Three drive belt variants are specified. In addition, the top layer and/or the force transfer zone are/is provided with a pressure-resistant coating. The drive belt is characterized in that at least the top layer and/or the base are/is free from carbon black and free from polycyclic aromatic hydrocarbons (PAH). The tension cord and/or abrasion-resistant coating are/is preferably prepared with an adhesive system that is likewise free from carbon black and PAH.
    Type: Application
    Filed: July 25, 2012
    Publication date: December 6, 2012
    Inventors: Michael Well, Reinhard Teves, Thomas Baltes, Sener Guevenc, Heiko Sattler
  • Patent number: 8298665
    Abstract: A power transmission belt comprising a polyester tensile cord having a heat shrinkage at 100° C. of less than 1% and/or a heat shrinkage at 150° C. of less than about 1.5% and/or a dimensional stability index of less than about 6%. The belt has a heat shrinkage after 24 hours at 100° C. of less than 1%. The polyester may be that sold under the trade name A360 or A363 by Performance Fibers, Inc. or equivalent polyethylene terephthalate. The tensile cord is particularly suited for use in V-belts for variable speed drives.
    Type: Grant
    Filed: June 24, 2008
    Date of Patent: October 30, 2012
    Assignee: The Gates Corporation
    Inventor: Shawn Xiang Wu
  • Publication number: 20120252619
    Abstract: Configuring the inside of a tooth portion 15 of a toothed belt 10 with a core rubber layer 14 and the outer periphery of the tooth portion 15 with a tooth rubber layer 12. Also, including short fibers in the core rubber layer 14. The tooth rubber layer 12 is formed by curing a rubber composition containing 10 parts by weight or less high-density polyethylene with 100 parts by weight of matrix rubber. The value of tan ? for the tooth rubber layer 12 at 100-120° C. is maintained at 0.100-0.120.
    Type: Application
    Filed: August 31, 2010
    Publication date: October 4, 2012
    Applicants: HONDA MOTOR CO., LTD., GATES UNITTA ASIA COMPANY
    Inventors: Shinji Uchigashima, Mitsuhiro Yamada, Yohei Harada, Akira Terasaki, Kaoru Shimamura
  • Patent number: 8262522
    Abstract: The invention relates to a ribbed power transmission belt exhibiting a toothing made of elastomer based on ethylene/?-olefin elastomer, characterized in that at least the sides of the toothing are coated with a film made of at least partially crosslinked thermoplastic comprising at least 30% of at least one low-density polyethylene having a molecular weight of between 50 000 and 200 000 g/mol. The invention also relates to a manufacturing process which makes use of the application of a said thermoplastic film in the noncrosslinked or at least partially crosslinked state.
    Type: Grant
    Filed: March 1, 2007
    Date of Patent: September 11, 2012
    Assignee: Hutchinson
    Inventors: Marie Dieudonne, Philippe Sonntag, Hervé Varin
  • Publication number: 20120192822
    Abstract: A toothed drive belt covered by a cloth comprising PPS fibres is disclosed. In particular, the belt comprises at least one of the weft and warp yarns comprising at least one yarn made of PPS fibres. Advantageously, the belt of the invention is used inside the engine block in applications continuously in contact with oil.
    Type: Application
    Filed: August 5, 2010
    Publication date: August 2, 2012
    Inventors: Adriano Rolando, Marco Di Meco, Carlo Baldovino
  • Patent number: 8206251
    Abstract: A double-cogged V-belt with the upper and lower cog profiles symmetric and having lines (“L”) and arcs (“A”) connected according to a sequence from the center of a root to the center of an adjacent cog of L1-A1-L2-A2-L3 for the upper profile and L4-A3-L5-A4-L6, and with at least one upper root and one lower root substantially aligned with each other, and with the sum of the length of L1 plus the radius of A1 equal to or within 20% of the sum of the length of L4 plus the radius of A3. The upper and lower pitches may be equal and all the roots aligned, or there may be more upper cogs than lower cogs. Some or all arcs and lines may be connected tangentially.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: June 26, 2012
    Assignee: The Gates Corporation
    Inventors: Xinjian Fan, Wenlong Lu, Yoshitaka Sato
  • Publication number: 20120142471
    Abstract: A power transmission belt (20) having an elastic main body (17) includes a top layer as the belt backing and a bottom section having a power transmission zone. The power transmission zone and/or the top layer has/have a coating (15, 16), characterized in that the coating (15, 16) of the power transmission zone and/or the top layer includes at least the following layer construction: a base coating (18) made of a textile material, wherein the base coating (18) forms a bond with the elastic main body (17) and has a surface coating (19) including at least a mixture A, which contains at least one reactive diluent as per DIN 55945:2007-03. The invention further relates to a method for producing such a power transmission belt. The novel coating concept is applicable in particular in a toothed belt.
    Type: Application
    Filed: February 16, 2012
    Publication date: June 7, 2012
    Inventors: Roman Gaska, Axel Unruh, Claus-Lueder Mahnken, Thomas Baltes, Reinhard Teves
  • Publication number: 20120094795
    Abstract: The V-shaped transmission belt has concave and convex teeth on the inner diameter surface which are designed according to the engaging transmission principle. For the belt wheel with a V-shaped groove, the concave tooth on the bottom of the V-shaped groove comprises an engaging transmission section designed according to the engaging transmission principle, and a rolling friction transmission section disposed symmetrically on two sides of the engaging transmission section.
    Type: Application
    Filed: December 23, 2011
    Publication date: April 19, 2012
    Applicant: ZHEJIANG KINGLAND TRANSMISSION INDUSTRY CO., LTD.
    Inventor: Jinfang WANG
  • Publication number: 20120077631
    Abstract: A V-shaped belt transmission system includes a small pulley (2) and a large pulley (1). A V-shaped belt (3) winds around the large pulley (1) and the small pulley (2). The V-shaped belt (3) is in friction transmission with the large pulley (1). The transmission between the V-shaped belt (3) and the small pulley (2) is a transmission including the friction transmission with the mesh transmission. The invention provides a V-shaped belt transmission system which can effectively avoid the occurrence of slippage, improve the transmission efficiency, reduce the distortion of the belts, and prolong the service life of the belts, thus addressing the problem of the slippage and idle rotation of the existing belt transmissions.
    Type: Application
    Filed: December 5, 2011
    Publication date: March 29, 2012
    Applicant: ZHEJIANG KINGLAND TRANSMISSION INDUSTRY CO., LTD.
    Inventor: Jinfang Wang