Patents Assigned to Mitsuboshi Belting Ltd.
  • Patent number: 10436292
    Abstract: A belt installation tool (406) of the present invention includes a pulley pressing part (407) capable of being pressed toward a side of an outer periphery of a crank pulley (2) by the tension of a V-ribbed belt (4), a protection layer (471) having elasticity and covering the pulley pressing part (407) on the side of the outer periphery of the crank pulley (2), a belt hold part (408) for hooking and holding the V-ribbed belt 4, and a belt pressing part (409) for pressing the V-ribbed belt (4) extending along the outer periphery of the crank pulley (2) against the outer periphery of the crank pulley (2).
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: October 8, 2019
    Assignee: Mitsuboshi Belting Ltd.
    Inventor: Yasuhito Aoki
  • Patent number: 10436285
    Abstract: The present invention relates to a power transmission belt containing a frictional power transmission part and a fiber member that covers a surface of the frictional power transmission part, in which the fiber member is formed of a fiber (A) containing a water-absorbent fiber (A1) and contains a surfactant, to a fiber member used in the power transmission belt, and to a method for manufacturing the fiber member.
    Type: Grant
    Filed: June 25, 2014
    Date of Patent: October 8, 2019
    Assignee: Mitsuboshi Belting Ltd.
    Inventors: Tsuyoshi Takehara, Manabu Mitsutomi, Yoshihito Noborikawa, Yusuke Suzumegano
  • Publication number: 20190291999
    Abstract: The present invention relates to a vane member for a paper sheet conveyance impeller in which at least one vane member is disposed so as to protrude from the external peripheral surface of a rotatable cylindrical member, the vane member being provided with: a vane member body comprising a thermosetting polyurethane elastomer; and a plurality of core wires which comprise polyester fibers and are arranged along the axial direction of a rotary shaft of the cylindrical member. At least a portion of the core wires being embedded within the vane member body.
    Type: Application
    Filed: November 30, 2017
    Publication date: September 26, 2019
    Applicant: Mitsuboshi Belting Ltd.
    Inventors: Kentaro Arimachi, Akira Takenaka, Takahide Okazawa
  • Patent number: 10415685
    Abstract: The pulley structure includes a ventilation path that is formed at a position shifted in a radial direction from a rotating axis of a first rotating body and allows a spring accommodation space, formed between the first rotating body and a second rotating body, and the outside to communicate with each other. At least a part of the ventilation path is formed in an end cap that blocks an opening portion on one side of the first rotating body in a rotating axis direction. The end cap blocks the opening portion of the first rotating body such that the spring accommodation space does not communicate with the outside toward the one side in the rotating axis direction other than the ventilation path.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: September 17, 2019
    Assignee: Mitsuboshi Belting Ltd.
    Inventors: Katsuya Imai, Hayato Shimamura
  • Publication number: 20190276954
    Abstract: The present invention relates to a plied cord comprising three or four first twist yarns containing para-aramid fibers, wherein: the para-aramid fibers have an average size of 1000-1250 dtex, a tensile elasticity of 55-70 GPa and a tensile strength of 2800-3500 MPa; and for the plied cord, the number of first twists when the number of the first twist yarns is three is 33-40 twists/10 cm and the number of first twists when the number of the first twist yarns is four is 42-52 twists/10 cm, the second twist direction is the opposite direction from the first twist, and the ratio of the second twist coefficient to the first twist coefficient is 0.25-1.
    Type: Application
    Filed: October 17, 2017
    Publication date: September 12, 2019
    Applicant: Mitsuboshi Belting Ltd.
    Inventor: Takuya Tomoda
  • Patent number: 10385947
    Abstract: The present invention relates to a belt attachment tool used for further winding a belt, which is wound on a first pulley (1) and a second pulley (2), on a third pulley (3), the belt attachment tool containing a side surface part (10), an attaching part (11), a first belt holding part (14), and a second belt holding part (15), and the second belt holding part (15) is arranged so that a point (F) of intersection between a first extension line (L1) extending the belt wound on the first belt holding part (14) from an outer periphery of the second pulley (2) and a second extension line (L2) extending the belt wound on the second belt holding part (15) from an outer periphery of the first pulley (1) is located to a front side in a rotation direction (A) of the third pulley (3) with respect to a center line (L3) connecting a center (1S) of the first pulley (1) with a center (3S) of the third pulley.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: August 20, 2019
    Assignee: Mitsuboshi Belting Ltd.
    Inventor: Yasuhito Aoki
  • Publication number: 20190232587
    Abstract: The present invention pertains to a method for manufacturing a cogged V-belt having a plurality of cogs, the method containing: an unvulcanized sleeve formation step of forming an unvulcanized sleeve by laminating a plurality of unvulcanized rubber sheets that contain at least an unvulcanized rubber sheet for a compression rubber layer and an unvulcanized rubber sheet for a tension rubber layer; a vulcanized sleeve formation step of forming a vulcanized sleeve by vulcanizing the unvulcanized sleeve; and a cog formation step of forming the plurality of cogs on the compression rubber layer after the vulcanized sleeve forming step.
    Type: Application
    Filed: August 25, 2017
    Publication date: August 1, 2019
    Applicant: Mitsuboshi Belting Ltd.
    Inventors: Yoshihiro Miura, Susumu Takaba
  • 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
  • Publication number: 20190219134
    Abstract: A V-ribbed belt has a plurality of V-rib portions extending along a longitudinal direction of the belt and in parallel with one another. The V-ribbed belt includes a compression rubber layer including a frictional power transmission face at least a part of which is configured to come in contact with a V-rib groove portion of pulleys. The frictional power transmission face of the compression rubber layer is formed from a vulcanizate of a rubber composition containing a rubber component and a noise suppression improver. A V-rib angle of the V-rib portions is larger than a V-rib groove angle of the pulleys by 5° to 9°.
    Type: Application
    Filed: August 25, 2017
    Publication date: July 18, 2019
    Applicant: Mitsuboshi Belting Ltd.
    Inventors: Yasutsugu Kunihiro, Hiroki Imai, Yuji Maruyama, Arata Hasegawa, Yorifumi Hineno
  • Publication number: 20190169349
    Abstract: A thermosetting polyurethane composition is provided for forming a belt to be used in an environment where the belt comes into contact with an oil including an unsaturated fatty acid and with a metal. The thermosetting polyurethane composition includes an isocyanate-group-terminated urethane prepolymer (A) having a polyester unit and/or a polycarbonate unit, a hydrolysis inhibitor (B), and a hardener (C).
    Type: Application
    Filed: July 27, 2017
    Publication date: June 6, 2019
    Applicant: Mitsuboshi Belting Ltd.
    Inventors: Kentaro Arimachi, Shingo Iizuka, Akira Takenaka, Takahide Okazawa
  • Publication number: 20190136957
    Abstract: The present invention pertains to a pulley structure (1) equipped with an outer rotating body (2), an inner rotating body (3), and a coil spring (4), said pulley structure 1 characterized in that a cross section of the spring wire of the coil spring (4) along a direction running along the rotational axis and parallel to the rotational axis is a trapezoidal shape, the length Ti [mm] of an inner-diameter-side portion in the rotational axis direction in the cross section is greater than the length To [mm] of an outer-diameter-side portion in the rotational axis direction in the cross section, and when the number of windings of the coil spring (4) is N, expression (1) is satisfied. N×(Ti?To)/2<1??(1).
    Type: Application
    Filed: April 27, 2017
    Publication date: May 9, 2019
    Applicant: Mitsuboshi Belting Ltd.
    Inventors: Hayato Shimamura, Katsuya Imai, Ryosuke Dan
  • Patent number: 10285280
    Abstract: The present invention relates to a conductive adhesive for screen printing containing metal colloid particles (A) containing metal nanoparticles (A1) and a protective colloid (A2) containing an organic compound having a carboxyl group and a polymer dispersant having a carboxyl group, a viscosity modifier (B) having an amide bond and/or a urea bond, and a dispersion solvent (C).
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: May 7, 2019
    Assignee: Mitsuboshi Belting Ltd.
    Inventors: Taisuke Iseda, Kazutomo Kawahara, Masahiro Iwamoto
  • Patent number: 10281014
    Abstract: The present invention relates to an auto-tensioner containing a base having a cylindrical part, a rotating member supported rotatably to the base, a pulley provided at the rotating member, a friction member sandwiched between the cylindrical part and the rotating member, and a coil spring locked to the friction member and the base and disposed in a state of being compressed in an axial direction, thereby biasing the rotating member in one direction, in which the friction member has an arcuate surface capable of sliding along the cylindrical part, a first locking part located further toward the one direction side than the arcuate surface in a circumferential direction of the cylindrical part and locked to the rotating member, and a second locking part locked to one end of the coil spring.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: May 7, 2019
    Assignee: Mitsuboshi Belting Ltd.
    Inventors: Satoshi Oishi, Koji Nishiyama, Tetsuo Yoneda
  • Publication number: 20190128372
    Abstract: Provided is a frictional power transmission belt containing an adhesion rubber layer in contact with at least a portion of a tension member extending in a longitudinal direction of the belt, in which the adhesion rubber layer is formed of a first vulcanized rubber composition containing a rubber component and a filler. The filler contains substantially no silica and contains 30 parts by mass or more of carbon black based on 100 parts by mass of the rubber component, and the tension member has, on a surface thereof, an overcoat layer formed of a second vulcanized rubber composition containing a rubber component and silica.
    Type: Application
    Filed: April 14, 2017
    Publication date: May 2, 2019
    Applicant: Mitsuboshi Belting Ltd.
    Inventors: Hisato Ishiguro, Takuya Tomoda
  • Publication number: 20190128371
    Abstract: A toothed belt includes: a belt main body having a tooth portion and a groove portion alternately disposed at a fixed pitch in a longitudinal direction, and an outer portion disposed on the outer surface thereof; and a cord buried on a predetermined pitch line on the outer portion, in which the belt main body includes: a support layer, disposed under the cord and containing a thermoplastic polyurethane material; and a cured polyurethane elastomer in addition to the support layer, and in which the support layer is formed of a mixture of the thermoplastic polyurethane material and the polyurethane elastomer, which are integrally cured.
    Type: Application
    Filed: June 5, 2017
    Publication date: May 2, 2019
    Applicant: Mitsuboshi Belting Ltd.
    Inventor: Susumu Osaki
  • Publication number: 20190132961
    Abstract: A conductive paste includes a high melting point metal particle having a melting point exceeding a baking temperature, a molten metal particle containing a metal or an alloy which melts at a temperature equivalent to or lower than the baking temperature and has a melting point of 700° C. or lower, an active metal particle containing an active metal, and an organic vehicle.
    Type: Application
    Filed: December 27, 2016
    Publication date: May 2, 2019
    Applicant: Mitsuboshi Belting Ltd.
    Inventors: Hiroji Kobayashi, Yoko Hayashi
  • Publication number: 20190128373
    Abstract: A frictional power transmission belt is provided, containing an adhesion rubber layer in contact with at least a portion of a tension member extending in a longitudinal direction of the belt, in which the adhesion rubber layer is formed of a first vulcanized rubber composition containing a rubber component and a filler, the filler contains subsantially no silica and contains 30 parts by mass or more of carbon black based on 100 parts by mass of the rubber component, and the tension member has, on a surface thereof, an overcoat layer formed of a second vulcanized rubber composition containing a rubber component and silica.
    Type: Application
    Filed: April 14, 2017
    Publication date: May 2, 2019
    Applicant: Mitsuboshi Belting Ltd.
    Inventors: Hisato Ishiguro, Takuya Tomoda
  • 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
  • Publication number: 20190085938
    Abstract: A helical toothed belt includes: a back portion in which a tension member is buried and; a plurality of tooth portions arranged on one surface of the back portion with inclination to a belt width direction, in which a surface of the tooth portion and a portion of the one surface of the back portion are formed of a tooth fabric, the other surface of the back portion is formed of a back fabric, the plurality of tooth portions have a tooth pitch of 2 mm or more and 5 mm or less, and the tension member is a twisted cord containing a high-strength glass fiber or a carbon fiber and having a diameter of 0.2 mm or more and 0.6 mm or less.
    Type: Application
    Filed: March 17, 2017
    Publication date: March 21, 2019
    Applicant: Mitsuboshi Belting Ltd.
    Inventors: Masakuni Yoshida, Shunsuke Isoe, Isao Ideguchi
  • 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