Friction Drive Belt Patents (Class 474/237)
  • Patent number: 10267382
    Abstract: The present invention relates to a V-ribbed belt to be wound around plural pulleys and used, including an extension layer that forms a back surface of the V-ribbed belt, a compression layer provided on one surface of the extension layer and having plural ribs extending parallel to each other along a longitudinal direction of the V-ribbed belt, and a load carrying cord embedded between the extension layer and the compression layer along the longitudinal direction of the V-ribbed belt, in which a distance from an outer peripheral portion of the load carrying cord on the rib side to a tip portion of the rib is from 2.0 to 2.6 mm, and a distance from the outer peripheral portion of the load carrying cord on the rib side to a bottom portion of the rib is from 0.3 to 1.2 mm.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: April 23, 2019
    Assignee: Mitsuboshi Belting Ltd.
    Inventors: Masashi Tamura, Hisato Ishiguro, Hiroshi Matsumura
  • Patent number: 10215256
    Abstract: The present invention relates to a V-ribbed belt to be wound around plural pulleys and used, including an extension layer that forms a back surface of the V-ribbed belt, a compression layer provided on one surface of the extension layer and having plural ribs extending parallel to each other along a longitudinal direction of the V-ribbed belt, and a load carrying cord embedded between the extension layer and the compression layer along the longitudinal direction of the V-ribbed belt, in which a distance from an outer peripheral portion of the load carrying cord on the rib side to a tip portion of the rib is from 2.0 to 2.6 mm, and a distance from the outer peripheral portion of the load carrying cord on the rib side to a bottom portion of the rib is from 0.3 to 1.2 mm.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: February 26, 2019
    Assignee: Mitsuboshi Belting Ltd.
    Inventors: Masashi Tamura, Hisato Ishiguro, Hiroshi Matsumura
  • Patent number: 9709129
    Abstract: At least part of a belt body of a transmission belt contacting a cord is made of a rubber composition containing ethylene-?-olefin elastomer as a rubber component and formed in such a manner that the rubber component is mixed with ?,?-unsaturated fatty acid metallic salt and then is crosslinked using sulfur.
    Type: Grant
    Filed: January 6, 2015
    Date of Patent: July 18, 2017
    Assignee: BANDO CHEMICAL INDUSTRIES, LTD.
    Inventor: Hisashi Matsuda
  • Patent number: 9464686
    Abstract: A power transmission belt has an uneven surface of rubber which when the power transmission belt is wound around a flat pulley, comes in contact with the flat pulley. The uneven surface has projected parts each having a flat top surface.
    Type: Grant
    Filed: February 2, 2015
    Date of Patent: October 11, 2016
    Assignee: BANDO CHEMICAL INDUSTRIES, LTD.
    Inventor: Takayuki Kusano
  • Patent number: 9341233
    Abstract: A V-ribbed belt that includes a ribbed surface covered with fabric is provided. The fabric is stretchable in two predetermined directions. A method for manufacturing the V-ribbed belt is also provided. The method includes placing a belt matrix about a mandrel, placing a fabric about the external circumference of the belt matrix which wraps around the mandrel, placing the mandrel inside a shell having a plurality of grooves on the internal circumference, expanding the belt matrix and the fabric toward the internal circumference of the shell and thus pressing the fabric onto the internal circumference having the multi-ribbed structure, and curing the belt matrix with the fabric. The fabric is stretchable to accommodate itself to the multi-ribbed structure.
    Type: Grant
    Filed: August 14, 2014
    Date of Patent: May 17, 2016
    Assignee: GATES CORPORATION
    Inventors: Masahiro Mori, Min Gao, Lance C. Hall, Shawn Xiang Wu
  • Patent number: 9020409
    Abstract: A belt unit includes an endless belt member, a first roller provided on an inner circumferential surface side of the belt member, and a stretching member provided on the inner circumferential surface side of the belt member. The stretching member is configured to stretch the belt member. A circumferential length of the belt member at a center portion in a widthwise direction of the belt member is shorter than a circumferential length of the belt member at an end portion in the widthwise direction of the belt member.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: April 28, 2015
    Assignee: Oki Data Corporation
    Inventor: Teruaki Kuroda
  • Patent number: 8979692
    Abstract: A belt body (10) of a friction transmission belt (B) includes a pulley contacting portion (13) made of a rubber composition. The rubber composition forming the pulley contacting portion (13) includes an ethylene-?-olefin elastomer as a rubber component, and in the rubber composition, 10-50 parts by mass of calcium carbonate relative to 100 parts by mass of the rubber component, and carbon black whose DBP oil absorption amount measured according to the method A specified in Japanese Industrial Standards (JIS) K 6217-4 is 300 cm3/100 g or more are mixed.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: March 17, 2015
    Assignee: Bando Chemical Industries, Ltd.
    Inventors: Hisashi Matsuda, Shinji Takahashi
  • Patent number: 8974336
    Abstract: A power transmission belt (10) includes: a belt body (11) including a part (14) which is in contact with a flat pulley and which is made of a rubber composition containing an ethylene-?-olefin elastomer with an ethylene content of less than or equal to 60% by mass as raw rubber. The rubber composition forming the contact part (14) with the flat pulley has a storage modulus of 20-60 MPa at 25° C. and a storage modulus of 12 MPa or more at 100° C., short fibers are not blended into the rubber composition, and the grain direction of the rubber composition corresponds to a belt lengthwise direction.
    Type: Grant
    Filed: July 7, 2009
    Date of Patent: March 10, 2015
    Assignee: Bando Chemical Industries, Ltd.
    Inventors: Eijiro Nakashima, Shigeki Okuno
  • Publication number: 20150031486
    Abstract: A method for manufacturing an endless metal ring by cutting an annular member made of maraging steel containing molybdenum into a ring element having a predetermined width, wherein a melted-solidified layer is formed on an outer circumference of the annular member, and the melted-solidified layers are arranged to be continuous in a circumferential direction of the ring element.
    Type: Application
    Filed: March 28, 2012
    Publication date: January 29, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Koji Nishida, Ichiro Aoto, Ryo Adomi
  • Publication number: 20150024892
    Abstract: The present invention relates to a friction transmission belt having a friction transmission part, in which the friction transmission part is formed of a rubber composition containing an ethylene-?-olefin elastomer, a mineral-based filler and a surfactant.
    Type: Application
    Filed: March 7, 2013
    Publication date: January 22, 2015
    Inventors: Yorifumi Hineno, Takaaki Kan
  • Publication number: 20140349797
    Abstract: Disclosed herein is a method of manufacturing an endless belt, including the steps of: reacting a diamine monomer with a dianhydride monomer in a reactor filled with a conductive filler-dispersed liquid to obtain a reaction product, aging the reaction product and then discharging the aged reaction product from the reactor to prepare a semiconductive polyamic acid solution having a molecular weight distribution (Mw/Mn) of 1.3˜3.0 and a weight average molecular weight (Mw) of 30,000˜300,000; and applying the semiconductive polyamic acid solution to a seamless mold and completing an imidization reaction to obtain a polyimide film.
    Type: Application
    Filed: August 30, 2012
    Publication date: November 27, 2014
    Applicant: KOLON INDUSTRIES, INC.
    Inventors: Ki Nam Kwak, Sang Kyun Kim, Sung Hoon Back, Chun Im Lee, Sang Min Song
  • Patent number: 8888635
    Abstract: A V-ribbed belt that includes a ribbed surface covered with fabric is provided. The fabric is stretchable in two predetermined directions. A method for manufacturing the V-ribbed belt is also provided. The method includes placing a belt matrix about a mandrel, placing a fabric about the external circumference of the belt matrix which wraps around the mandrel, placing the mandrel inside a shell having a plurality of grooves on the internal circumference, expanding the belt matrix and the fabric toward the internal circumference of the shell and thus pressing the fabric onto the internal circumference having the multi-ribbed structure, and curing the belt matrix with the fabric. The fabric is stretchable to accommodate itself to the multi-ribbed structure.
    Type: Grant
    Filed: March 12, 2010
    Date of Patent: November 18, 2014
    Assignee: The Gates Corporation
    Inventors: Masahiro Mori, Min Gao, Lance C. Hall, Shawn Xiang Wu
  • Publication number: 20140323256
    Abstract: A friction transmission belt has a belt body made of a rubber composition and wrapped around pulleys to transmit power. The belt includes a thermoplastic resin film provided to coat a pulley contact surface of the belt body, and a powder layer comprised of reduced friction coefficient powder particles provided on a surface side of the thermoplastic resin film. The powder layer includes powder particles buried in the thermoplastic resin film, powder particles carried and exposed on the surface of the thermoplastic resin film, and powder particles agglomerated and adhering to the powder particles carried and exposed on the surface of the thermoplastic resin film.
    Type: Application
    Filed: July 9, 2014
    Publication date: October 30, 2014
    Inventor: Keisuke Yoshida
  • Patent number: 8844281
    Abstract: A heat engine includes a first rotatable pulley and a second rotatable pulley spaced from the first rotatable pulley. A shape memory alloy (SMA) element is disposed about respective portions of the pulleys at an SMA pulley ratio. The SMA element includes a first wire, a second wire, and a matrix joining the first wire and the second wire. The first wire and the second wire are in contact with the pulleys, but the matrix is not in contact with the pulleys. A timing cable is disposed about respective portions of the pulleys at a timing pulley ratio, which is different than the SMA pulley ratio. The SMA element converts a thermal energy gradient between the hot region and the cold region into mechanical energy.
    Type: Grant
    Filed: December 30, 2011
    Date of Patent: September 30, 2014
    Assignees: GM Global Technology Operations LLC, Dynalloy, Inc, The Regents of the University of Michigan
    Inventors: Alan L. Browne, Nancy L. Johnson, John Andrew Shaw, Christopher Burton Churchill, Andrew C. Keefe, Geoffrey P. McKnight, Paul W. Alexander, Guillermo A. Herrera, James Ryan Yates, Jeffrey W. Brown
  • Patent number: 8690719
    Abstract: To provide a push type driving belt, which is capable of preventing uneven wear of the ring and deterioration in durability of the ring, by preventing a transmission loss resulting from an internal slippage of the ring, and by positioning the ring properly with respect to the element. The push-type driving belt B comprises: an element 1, in which a recess 8 opening toward a diametrically outer circumferential side is formed in a width center thereof; and a ring 9, which is formed of single layer in its thickness direction using elastic material, and which is fitted into the recess 8 of the element 1 to fasten the elements 1 juxtaposed in a circular manner.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: April 8, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Toshinari Sano
  • 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
  • Patent number: 8617017
    Abstract: The invention provides a power transmission chain in which abnormal noise can be reduced. In a link, a front through hole 7 and a rear through hole 8 aligned in a chain traveling direction X are provided. A pillar portion 9 is provided between the front through hole 7 and the rear through hole 8. Projecting portions 26, 29 are provided at a central portion in a height direction V of the pillar portion 9, and concave curve portions 27, 28, 30, 31 are provided at both end portions. A pair of flat portions (33,34 and 38,39) are provided on each projection portion 26,29 for restricting an overshoot of the chain. A not-shown pin that is loosely fitted to each of the front through hole 7 and the rear through hole 8 is brought into abutment with corresponding flat portions 27,28,30,31 to restrict an overshoot of the chain 1.
    Type: Grant
    Filed: November 7, 2008
    Date of Patent: December 31, 2013
    Assignee: JTEKT Corporation
    Inventors: Seiji Tada, Shigeo Kamamoto
  • Patent number: 8608603
    Abstract: [Purpose] A belt drive system, in which a drive belt 20 is wrapped between a drive pulley 1 drivingly connected to a drive source 11 and a driven pulley 2 connected to an driven unit 12 via a joint 32 provided to stop torque transmission when receiving a load equal to or over a predetermined value and torque is transmitted via the drive belt 20 from the drive pulley 1 to the driven pulley 2, ensures that when the driven unit 12 malfunctions, the joint 32 stops the torque transmission without unnecessarily increasing the coefficient of friction against the driven pulley 2 or the belt tension. [Solution] The belt drive system is configured so that when a slip corresponding to the load on the joint 32 equal to or over the predetermined value occurs between the drive belt 20 and the driven pulley 2, the coefficient of friction between the drive belt 20 and the driven pulley 2 becomes higher than that before the slip occurs.
    Type: Grant
    Filed: March 22, 2006
    Date of Patent: December 17, 2013
    Assignee: Bando Chemical Industries, Ltd.
    Inventor: Takehiro Hayashi
  • Patent number: 8609774
    Abstract: The present invention provides a belt excellent in mechanical properties at high temperatures. The belt of the present invention comprises a cross-linked fluororubber layer obtainable by cross-linking a fluororubber composition containing a fluororubber (A) and a carbon black (B). The cross-linked fluororubber layer has a loss modulus E? of 400 kPa or higher and 6,000 kPa or lower determined by a dynamic viscoelasticity test (measurement temperature: 160° C., tensile strain: 1%, initial force: 157 cN, frequency: 10 Hz).
    Type: Grant
    Filed: August 25, 2011
    Date of Patent: December 17, 2013
    Assignee: Daikin Industries, Ltd.
    Inventors: Junpei Terada, Daisuke Ota, Masanori Kitaichi, Yutaka Ueta, Shigeru Morita, Kazuyoshi Kawasaki, Tatsuya Morikawa, Shoji Fukuoka
  • Patent number: 8579747
    Abstract: A stacked ring 2 that forms a transmission belt is formed by stacking a plurality of elastically deformable ring materials 201 to 206 together. Shot peening is performed on surfaces of the ring materials 201 to 203 of the first layer as the innermost layer to the third layer so that a residual compressive stress in the ring materials 201 to 203 is higher than that in the ring materials 204 to 206 of the fourth to sixth layers. The outer circumferential length of the ring material 203 of the third layer is longer than the inner circumferential length of the ring material 204 of the fourth layer, and the ring material 203 of the third layer is press-fit into the ring material 204 of the fourth layer.
    Type: Grant
    Filed: January 19, 2011
    Date of Patent: November 12, 2013
    Assignee: Aisin AW Co., Ltd.
    Inventors: Akira Ochi, Youichi Murata, Katsumori Fujii, Masashi Hattori
  • Publication number: 20130281241
    Abstract: A treadbelt for a treadmill may comprise a major surface comprising a plurality of tufts extending therethrough. The treadbelt may further comprise a first textile layer and a plurality of fibers extending through the first textile layer to provide the plurality of tufts. Additionally, the plurality of fibers may be sized, shaped and positioned to exhibit the appearance of turf. An additional treadbelt may comprise a major surface comprising a plurality of protrusions extending therefrom. The plurality of protrusions may be spatially distributed on the major surface of the treadbelt in an irregular and non-repeating configuration and may comprise irregular and non-repeating shapes. In some embodiments, a treadbelt may comprise a major surface configured to approximate to a runner the impact response of at least one of turf, sand, a trail, a ground vulcanized rubber track, and a hardwood surface.
    Type: Application
    Filed: April 17, 2013
    Publication date: October 24, 2013
    Inventors: Scott R. Watterson, William T. Dalebout
  • Publication number: 20130237354
    Abstract: A friction drive belt has a pulley contact portion of a belt body, and at least the pulley contact portion is made of a rubber composition. Numerous pores are formed in a surface of the pulley contact portion of the belt body, and numerous small protrusions having an average height of 4-40 ?m are formed to protrude from the surface.
    Type: Application
    Filed: April 22, 2013
    Publication date: September 12, 2013
    Applicant: BANDO CHEMICAL INDUSTRIES, LTD.
    Inventor: Hiroyuki Shiriike
  • Publication number: 20130192960
    Abstract: A method of manufacturing a rubber-metal composite, the method including a process of bringing a metal material into contact with a buffer solution having a pH of from 5 to 7.2, followed by a process of causing the metal material and rubber to adhere to each other.
    Type: Application
    Filed: September 22, 2011
    Publication date: August 1, 2013
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Shinichi Toyosawa
  • Patent number: 8480521
    Abstract: A flat belt includes a tension-resistant layer, in which a core cord is spirally wound, an upper holding rubber layer, a lower holding rubber layer, an upper rubber layer, and a lower rubber layer. The holding rubber layers and are laid on the upper and lower sides of the tension-resistant layer respectively, retaining the layer. The upper and lower rubber layers and are laid on the upper side of the upper holding rubber layer and the lower side of the lower holding rubber layer respectively. 150-300 parts by weight of ferrite for 100 parts by weight of rubber matrix are mixed in the upper rubber layer, which is on the outer peripheral side of the flat belt when the belt is wound on a guide wheel.
    Type: Grant
    Filed: April 17, 2009
    Date of Patent: July 9, 2013
    Assignee: Bando Kagaku Kabushiki Kaisha
    Inventors: Masahiro Inukai, Yoshiyuki Kitano
  • Patent number: 8454464
    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: Grant
    Filed: September 21, 2010
    Date of Patent: June 4, 2013
    Assignee: The Gates Corporation
    Inventor: Lambert Pasch
  • Patent number: 8444515
    Abstract: An elevator load bearing assembly includes a plurality of cords within a jacket. The cords are spaced from an exterior surface on the jacket such that the spacing remains generally constant along the length of the belt. The jacket has a smooth, uninterrupted exterior surface for contacting sheaves as the belt moves in the elevator system. A method of making the inventive belt assembly is disclosed. The inventive belt assembly minimizes the possibility for generating an annoying, audible sound and vibration during elevator operation.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: May 21, 2013
    Assignee: Otis Elevator Company
    Inventors: Pedro S. Baranda, Richard L. Hollowell, John T. Pitts, Hugh J. O'Donnell
  • Patent number: 8425355
    Abstract: A belt-type continuously variable transmission includes a primary sheave including a pair of first clamp surfaces, a secondary sheave including a pair of second clamp surfaces, and a belt endlessly wound between both of the primary and secondary sheaves. The belt includes contact surfaces clamped between the first clamp surfaces and between the second clamp surfaces. Powder having infusibility as a friction enhancing material is held on at least one of the first clamp surfaces of the primary sheave, the second clamp surfaces of the secondary sheave, and the contact surfaces of the belt.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: April 23, 2013
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Yousuke Ishida, Masaru Oosuga
  • Publication number: 20130085028
    Abstract: An object of the present invention is to provide an environmentally-friendly transmission belt. Provided is a transmission belt formed of a crosslinked rubber, wherein 80% by mass or more of the transmission belt comprises non-petroleum resources, and a base rubber of the crosslinked rubber is a natural rubber.
    Type: Application
    Filed: May 17, 2011
    Publication date: April 4, 2013
    Applicant: BANDO CHEMICAL INDUSTRIES, LTD.
    Inventors: Tomoyuki Yamada, Hiroyuki Tachibana, Tomonari Nakamura, Tadahiko Noguchi
  • Publication number: 20120289371
    Abstract: The hybrid tape includes an outer member that is formed with a material having desirable tensile qualities, such that the outer member is tailored to exhibit superior fatigue performance in tension induced from bending. The hybrid tape further includes an inner member that is formed with a material having desirable compression qualities, such that the inner member is tailored to exhibit superior fatigue performance in compression induced from bending. The hybrid tape is configured such that the bend neutral axis is located between the inner material and the outer material, thereby insuring the outer material only experiences tension in bending while the inner material only experiences compression in bending.
    Type: Application
    Filed: April 30, 2012
    Publication date: November 15, 2012
    Applicant: BELL HELICOPTER TEXTRON INC.
    Inventor: Troy C. Schank
  • Patent number: 8308592
    Abstract: The present invention is directed to a treadmill belt with foamed cushion layer and method of making same. In one embodiment, the treadmill belt includes a fabric base layer and a foamed cushion layer foamed on and integral with the fabric base layer. The foamed cushion layer includes a thermoplastic composition and has a Shore A hardness of about 20 to about 80. In one example, the first foamed cushion layer is from about 0.05 inches to about 0.35 inches thick. The thermoplastic composition, prior to being foamed, includes about 1 part to about 5 parts of a foaming agent, e.g., a chemical foaming agent, based on 100 parts thermoplastic material, e.g., polyvinyl chloride. An outer wear layer is securely adhered on the foamed cushion layer to sandwich the foamed cushion layer between the fabric base layer and outer wear layer thereby defining the treadmill belt.
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: November 13, 2012
    Assignee: Veyance Technologies, Inc
    Inventors: Peter E. Radding, Steven Wayne Mutch
  • Publication number: 20120258829
    Abstract: A power transmission belt is provided with a peroxide-cured, polybutadiene-based elastomeric composition. The elastomeric composition includes 100 parts of a rubber derived from 50 to 100 parts by weight of polybutadiene rubber; 0 to 50 parts by weight of at least one other rubber; about 1 to about 20 parts by weight per 100 parts by weight of total rubber (phr) of a type I coagent; about 1 to about 20 phr of a type II coagent; and about 0.1 to about 10 phr of a peroxide curing agent.
    Type: Application
    Filed: April 7, 2011
    Publication date: October 11, 2012
    Applicant: CARLISLE INTANGIBLE COMPANY
    Inventors: Kent H. Little, Daniel Virtue
  • Patent number: 8157684
    Abstract: A belt is entrained about the rollers. A belt guide is secured to an inner surface of the belt and is guided by pulleys. The belt guide is formed of a material that has a dissipation factor of tan ??0.05 at a resonance frequency of 1 Hz±10% and at a temperature of 50±0.5° C., and a storage modulus of E??8.0×106 (Pa) at a resonance frequency of 1 Hz±10% and at a temperature of 50±0.5° C. Another material has tan ??0.05 at 1 Hz±10% and at 50±0.5° C., and E??8.0×106 (Pa) at 1 Hz±10% and at 50±0.5° C. The belt guide may be formed of a plurality of layers.
    Type: Grant
    Filed: February 7, 2005
    Date of Patent: April 17, 2012
    Assignee: Oki Data Corporation
    Inventor: Michiaki Ito
  • Patent number: 8152666
    Abstract: A power transmission belt, in particular for a motor vehicle and presenting at least V-ribs having flat side faces and rounded ridges, wherein the ridges present a convex curvilinear profile having a mean radius of curvature greater than 1 mm and less than or equal to 1.5 mm.
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: April 10, 2012
    Assignee: Hutchinson
    Inventors: Hervé Varin, Willy Bourdeau
  • Publication number: 20120067706
    Abstract: The present invention provides a belt excellent in mechanical properties at high temperatures. The belt of the present invention comprises a cross-linked fluororubber layer obtainable by cross-linking a fluororubber composition containing a fluororubber (A) and a carbon black (B). The cross-linked fluororubber layer has a loss modulus E? of 400 kPa or higher and 6,000 kPa or lower determined by a dynamic viscoelasticity test (measurement temperature: 160° C., tensile strain: 1%, initial force: 157 cN, frequency: 10 Hz).
    Type: Application
    Filed: August 25, 2011
    Publication date: March 22, 2012
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Junpei TERADA, Daisuke OTA, Masanori KITAICHI, Yutaka UETA, Shigeru MORITA, Kazuyoshi KAWASAKI, Tatsuya MORIKAWA, Shoji FUKUOKA
  • Publication number: 20120058849
    Abstract: In a friction drive belt (B), a belt body (10) made of a rubber composition is wrapped around pulleys to transmit power. A powder layer (16) is combined and integrated with a pulley contact-side surface of the belt body (10) located on a side that is to contact the pulleys, so that the powder layer (16) covers the pulley contact-side surface.
    Type: Application
    Filed: May 11, 2010
    Publication date: March 8, 2012
    Applicant: BANDO CHEMICAL INDUSTRIES, LTD
    Inventor: Keisuke Yoshida
  • Publication number: 20120021858
    Abstract: A belt body (10) of a friction transmission belt (B) includes a pulley contacting portion (13) made of a rubber composition. The rubber composition forming the pulley contacting portion (13) includes an ethylene-?-olefin elastomer as a rubber component, and in the rubber composition, 10-50 parts by mass of calcium carbonate relative to 100 parts by mass of the rubber component, and carbon black whose DBP oil absorption amount measured according to the method A specified in Japanese Industrial Standards (JIS) K 6217-4 is 300 cm3/100 g or more are mixed.
    Type: Application
    Filed: March 26, 2009
    Publication date: January 26, 2012
    Applicant: BANDO CHEMICAL INDUSTRIES, LTD.
    Inventors: Hisashi Matsuda, Shinji Takahashi
  • Patent number: 8100796
    Abstract: An elevator load bearing assembly (40) includes a plurality of synthetic or polymer cords (42) within a urethane jacket (44). The cords are prestretched and the jacket prevents the stretched cords from relaxing. The inventive arrangement provides a load bearing assembly (40) that has little or no elastic or construction stretch.
    Type: Grant
    Filed: September 25, 2002
    Date of Patent: January 24, 2012
    Assignee: Otis Elevator Company
    Inventor: Hugh James O'Donnell
  • Patent number: 8096925
    Abstract: The present invention is directed to a treadmill belt with foamed cushion layer and method of making same. In one embodiment, the treadmill belt includes a fabric base layer and a foamed cushion layer foamed on and integral with the fabric base layer. The foamed cushion layer includes a thermoplastic composition and has a Shore A hardness of about 20 to about 80. In one example, the first foamed cushion layer is from about 0.05 inches to about 0.35 inches thick. The thermoplastic composition, prior to being foamed, includes about 1 part to about 5 parts of a foaming agent, e.g., a chemical foaming agent, based on 100 parts thermoplastic material, e.g., polyvinyl chloride. An outer wear layer is securely adhered on the foamed cushion layer to sandwich the foamed cushion layer between the fabric base layer and outer wear layer thereby defining the treadmill belt.
    Type: Grant
    Filed: January 8, 2008
    Date of Patent: January 17, 2012
    Assignee: Veyance Technologies, Inc.
    Inventors: Peter E. Radding, Steven Wayne Mutch
  • Patent number: 8075434
    Abstract: A power transmission belt comprising a belt body having a length and defining at least one elongate rib, the rib having an exposed surface that engages a cooperating pulley, the exposed rib surface having at least one longitudinal groove formed therein which reduces transverse modulus of the surfaces engaging the cooperating pulley and thereby reduce noise accompanying running of the belt.
    Type: Grant
    Filed: August 6, 2003
    Date of Patent: December 13, 2011
    Assignee: Dayco Products, LLC
    Inventors: Richard J. Witt, Darrell Klein
  • Patent number: 8066101
    Abstract: A belt device for driving an elevator is provided, the rest retaining capability of which is improved in order to retain the stopped state of an elevator cage if oil or water adheres to between a belt and a pulley. In the belt device for driving an elevator in which a belt 4 is stretched over a plurality of pulleys 1, 2, and 3, and the belt 4 is rotated by the rotations of the pulleys 1, 2, and 3, wherein the coefficient of friction of a contact surface with at least a driving pulley in the belt 4 is set to 0.6 to 3.0, and the contact surface is constructed of a rubber having a hardness (IRHD) of 65 to 95, and a wear resistance of 5 to 300 mm3 in Taber wear (ISO547-1-1999, under conditions: a wear ring of H18; a load of 1 kg; and 1000 rpm).
    Type: Grant
    Filed: May 26, 2005
    Date of Patent: November 29, 2011
    Assignee: Nitta Corporation
    Inventors: Kazuyuki Yuasa, Yasunori Ishikiriyama, Atsuhito Wake
  • Publication number: 20110285388
    Abstract: A power transmission belt formed with an encoder on its surface, method of manufacturing the power transmission belt, and a load detection system using the power transmission belt. The power transmission belt comprises a band-like magnetic rubber layer provided in a part of a belt layer structure of the power transmission belt which transmits power to an auxiliary machine of an automobile engine along the longitudinal direction of the belt layer structure. The surface of the magnetic rubber layer constitutes a multipolar magnetized surface alternately provided with N-poles and S-poles along the longitudinal direction of the belt layer structure, the surface of the magnetic rubber layer is capable of outputting signals for calculating load applied to the belt layer structure by the auxiliary machine to a plurality of magnetic sensors provided along the longitudinal direction of the belt layer structure, and one of the sensors is provided at a position where the auxiliary machine is provided.
    Type: Application
    Filed: July 24, 2009
    Publication date: November 24, 2011
    Inventors: Masanori Tomioka, Seiji Omura
  • Publication number: 20110269591
    Abstract: To provide a metal ring excellent in durability by reducing decrease in margin of strength and concentration of tensile stress at its both widthwise end portions and to efficiently realize a production method of the same, a metal ring is formed in an endless band-like body having a nitride layer on its surface portion and constituting part of a metal belt of a belt type continuously variable transmission, the nitride layer being constituted by a first nitride layer portion positioned on an outer circumferential side, a second nitride layer portion positioned on an inner circumferential side, and third nitride layer portions positioned on both widthwise end sides, and the layer thicknesses of the third nitride layer portions being smaller than either one of the layer thicknesses of the first nitride layer portion and the second nitride layer portion.
    Type: Application
    Filed: April 28, 2010
    Publication date: November 3, 2011
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Ryo Adomi
  • Patent number: 8047940
    Abstract: A heat-resistant endless resin belt including a heat-resistant resin sheet, which can be employed in a thermal fixing apparatus, wherein the sheet includes two cutting work parts in an inclined shape. The two parts are overlapped with each other and bonded with an adhesive to form a bonding part. An external shape displacement f(x), measured via a flatness measuring apparatus, which scans the belt in a width direction thereof, satisfies a following formula ? 0 x ? ? f ? ( x ) - g ? ( x ) ? ? ? ? x ? XL 6800 , wherein “X” (mm) is a length of the belt in a width direction thereof; “L” (mm) is a perimeter of the belt and “g(x)” represents a displacement of an ideal shape of the heat-resistant resin belt, when g(x)=C (a constant), a left side of the formula is set to be a minimum; whilst when g(x) is a variable, the displacement of the ideal shape of the belt is set.
    Type: Grant
    Filed: September 9, 2008
    Date of Patent: November 1, 2011
    Assignee: Ricoh Company, Ltd.
    Inventors: Atsushi Takai, Sumio Kamoi, Kazuo Ishida, Toshikazu Hirakawa, Atsushi Ishibe, Hiroshi Katabami
  • Publication number: 20110241269
    Abstract: The present invention is directed to a method of treating a reinforcement cord, comprising the steps of A) atomizing a mixture of at least one polymerizable monomer, a halogenated saturated hydrocarbon, and a carrier gas to form an atomized mixture; B) generating an atmospheric pressure plasma from the atomized mixture; and C) exposing the reinforcement cord to the atmospheric pressure plasma under conditions suitable to form a polymer strongly bonded to the tire cord and capable of bonding to rubber.
    Type: Application
    Filed: October 25, 2010
    Publication date: October 6, 2011
    Inventors: Frederic Gerard Auguste Siffer, James Gregory Gillick
  • Publication number: 20110237375
    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: Application
    Filed: June 6, 2011
    Publication date: September 29, 2011
    Inventors: Takafumi Onita, Akihiro Nagata
  • Patent number: 8002659
    Abstract: A transmission belt (10) has a contact face (18a) which contacts a pulley when the belt (10) is wound around the pulley. Foreign matter (25) is embedded near the contact face (18a) in the belt (10). The contact face (18a) is worn by the pulley when the belt (10) rotates around the pulley, so that the foreign matter (25) is exposed at the contact face (18a). The foreign matter (25) contacts the pulley to make a warning sound. Due to this, a user of the belt (10) can determine the extent of the wear of the belt (10), and the decrease in the transmissibility of the belt (10) and the pulley.
    Type: Grant
    Filed: August 22, 2003
    Date of Patent: August 23, 2011
    Assignee: The Gates Corporation
    Inventor: Hiroyuki Ichiba
  • Publication number: 20110201241
    Abstract: The invention relates to embodiments of a new composite material comprising at least a first plastic material and particles of magnetizable, magnetized or metal material. The invention further concerns an article made of the composite material and a method for obtaining an article from the composite material.
    Type: Application
    Filed: October 7, 2009
    Publication date: August 18, 2011
    Applicant: P.R. NASTRI TRASPORTATORI S.N.C. DI RUBINO VINCENZ O & RUBINO ATTILIO
    Inventor: Attilio Rubino
  • Patent number: 7971687
    Abstract: An elevator load bearing assembly (20) includes a plurality of cords (22) within a jacket (24). The jacket has a plurality of grooves (32, 34, 36, 38 40) spaced along the length of the belt assembly. Each groove has a plurality of portions (50, 52, 54, 56) aligned at an oblique angle (A, B) relative to a longitudinal axis (48) of the belt (20). In one example, the grooves are separated such that there is no longitudinal overlap between adjacent grooves. In another example, transitions (60, 64) between the obliquely aligned portions are at different longitudinal positions on the belt. Another example includes a combination of the different longitudinal positions and the non-overlapping groove placement.
    Type: Grant
    Filed: February 7, 2003
    Date of Patent: July 5, 2011
    Assignees: Otis Elevator Company, ContiTech Antriebssysteme GmbH
    Inventors: Goldino Alves, Ary Mello, Xiaodong Luo, Bill Perron, Hugh O'Donnell, Paul von Hardenberg, Mark Marler, John Pitts, Randy Roberts, Hubert E. Goeser, Christoph Bederna
  • Patent number: 7959530
    Abstract: The invention relates to an elastomeric product which contains a radical cross-linked rubber mixture, especially drive belts. For the production of elastomeric products, especially drive belts, having a long service life and producible in an environmentally friendly way, the rubber mixture contains (a) 0.1 to 50 phr of at least one carboxylic acid, which is at least ?,? unsaturated and ?,? unsaturated and preferably has at least one allylic hydrogen atom; and, (b) 0.1 to 50 phr of at least one salt-former as co-activator.
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: June 14, 2011
    Assignee: ContiTech Antriebssysteme GmbH
    Inventors: Karl-Friedrich Grüssel, Reinhard Teves, Michael Well
  • Publication number: 20110135926
    Abstract: An exemplary assembly includes at least one elongated tension member (32). A jacket covers at least some of the tension member (32). The jacket comprises a polymer material (64, 68) including a friction stabilizer (62) that facilitates maintaining a desired friction characteristic of at least an exterior surface on the jacket.
    Type: Application
    Filed: August 15, 2008
    Publication date: June 9, 2011
    Inventors: Xiaomei Yu, Gopal R. Krishnan, John P. Wesson, John M. Milton-Benoit