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公开(公告)号：JP2011215346A
公开(公告)日：2011-10-27
申请号：JP2010082910
申请日：2010-03-31
Applicant: Bridgestone Corp , 株式会社ブリヂストン
Inventor： ANDO YUKIO
Abstract: PROBLEM TO BE SOLVED: To provide a conductive endless belt that more effectively prevents chip or crack from a belt rim part caused by excessive tension concentration or local breakage, and prevents belt deformation and crack in a contact section especially even when a guide member is disposed.SOLUTION: The conductive endless belt 10 is used in an image forming apparatus and has an endless belt shape. At least one of the rims 11a and 11b is formed into a wave-shape, and the peripheral length of the rims 11a and 11b is extended.
Abstract translation: 要解决的问题：提供一种导电性环形带，其更有效地防止由于过度的张力集中或局部断裂而导致的带边缘部分的切屑或裂纹，并且甚至在引导构件被设置时也防止接触部分中的带变形和裂纹 。解决方案：导电环形带10用于图像形成装置中，并具有环形带形状。 轮缘11a和11b中的至少一个形成为波浪状，轮缘11a和11b的周长延伸。
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公开(公告)号：JP2011085808A
公开(公告)日：2011-04-28
申请号：JP2009239558
申请日：2009-10-16
Applicant: Bridgestone Corp , 株式会社ブリヂストン
Inventor： AKAHA HIROSHI , ANDO YUKIO , OSAKO AKIHIDE
IPC: G03G15/16
Abstract: PROBLEM TO BE SOLVED: To provide an endless belt capable of securing durability, and reducing cost sufficiently. SOLUTION: A coating 2 comprising at least one kind of an ultraviolet curing resin, a thermoplastic elastomer and a thermosetting resin is formed over the full circumference on one surface or on both surfaces of at least one end in the width direction of the endless belt 1. COPYRIGHT: (C)2011,JPO&INPIT
Abstract translation: 要解决的问题：提供一种能够确保耐久性的环形带，并且充分降低成本。 解决方案：包含至少一种紫外线固化树脂，热塑性弹性体和热固性树脂的涂层2在整个圆周上形成在宽度方向上的至少一个端部的一个表面或两个表面上 环境带1.版权所有（C）2011，JPO＆INPIT
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公开(公告)号：JP2009271158A
公开(公告)日：2009-11-19
申请号：JP2008119511
申请日：2008-05-01
Applicant: Bridgestone Corp , 株式会社ブリヂストン
Inventor： ANDO YUKIO
CPC classification number: G03G15/162 , C08L75/04 , G03G2215/00139 , G03G2215/00151 , G03G2215/1623
Abstract: PROBLEM TO BE SOLVED: To provide a conductive endless belt having a guide rib of superior flexibility and low impact resilience, that has excellent wear resistance and a low friction coefficient, and whereby superior running stability and quietness can be attained. SOLUTION: The conductive endless belt 3 has the guide rib 32 protruding in the circumferential direction provided on at least one face of the endless belt, wherein the guide rib 32 is formed using millable urethane rubber. COPYRIGHT: (C)2010,JPO&INPIT
Abstract translation: 要解决的问题：提供具有优异的柔性和低冲击弹性的导向肋的导电性环形带，其具有优异的耐磨性和低摩擦系数，并且由此可以实现优异的运行稳定性和安静性。 解决方案：导电环形带3具有沿圆周方向突出设置在环形带的至少一个面上的引导肋32，其中引导肋32使用可研磨的聚氨酯橡胶形成。 版权所有（C）2010，JPO＆INPIT
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公开(公告)号：JP2001341862A
公开(公告)日：2001-12-11
申请号：JP2000226418
申请日：2000-07-27
Applicant: BRIDGESTONE CORP
Inventor： ANDO YUKIO
IPC: B65H3/06
Abstract: PROBLEM TO BE SOLVED: To provide a paper feeding roller having high abrasion resistance and high coefficient of friction, and capable of being stably used for a long period. SOLUTION: An annular elastic body mounted on an outer peripheral face of a core body is composed of two layers, that is, an outer layer formed by a non-foaming layer and an inner layer formed by a foaming layer, or three layers including an innermost layer formed by a non-foaming layer to improve the fastening to the core body, in addition two the outer layer and the inner layer.
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公开(公告)号：JPH1072135A
公开(公告)日：1998-03-17
申请号：JP23109896
申请日：1996-08-30
Applicant: BRIDGESTONE CORP
Inventor： ANDO YUKIO , HASEGAWA HAJIME
Abstract: PROBLEM TO BE SOLVED: To attain low hardness, and reduce contamination to paper sheets by setting tackiness in a surface of a paper feeding member using thermoplastic elastomer to a specific value. SOLUTION: A paper feeding member is used for at least one or more of a pickup roller 2, a feed roller 3 and a reverse roller 4, and an elastic layer 5 is formed of thermoplastic elastomer. When tackiness in a surface of the thermoplastic elastomer is set not more than 30g, preferably, not more than 20g, contamination to paper sheets 1 can be reduced while maintaining a constant friction coefficient. The thermoplastic elastomer is composed mainly of a high polymer organic material and a softening agent, and for example, a thermoplastic high polymer material having number average molecular weight not less than 20,000 is used as the high polymer organic material, and a low molecular weight material having number average molecular weight less than 20,000 is used as the softening agent. A blending amount of the softening agent is adjusted, and JIS-A hardness is set not more than 60 deg.. Therefore, low hardness is attained, and contamination to the paper sheets 1 such as paper, a film or photographic printing paper can be reduced.
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Patent Agency Ranking
公开(公告)号：JPH05133414A
公开(公告)日：1993-05-28
申请号：JP31995791
申请日：1991-11-07
Applicant: BRIDGESTONE CORP
Inventor： MORIKAWA SHOHEI , FUKUDA HIROYA , ANDO YUKIO , YAGUCHI HITOSHI
IPC: B65H5/06 , B65H27/00 , C08J9/42 , F16C13/00 , G03G15/00 , G03G15/02 , G03G15/08 , G03G15/16 , G03G21/00 , G03G21/10
Abstract: PURPOSE:To obtain a substance which will not contaminate the photosensitive body or paper sheet so as to improve reliability by impregnating polyurethane foam for roller, suited to a roller brought into contact with the photosensitive body of a copying machine, with solvent solution which contains resin of concentration less than a specific value. CONSTITUTION:In a roller which is formed of polyurethane foam, a transferrable substance such as unreacted monomer of polyurethane foam or other unreacted additives like oligomer tends to be transferred to a photosensitive body and contaminate the photosensitive body or paper sheet. In order to solve this problem, impregnating treatment is conducted on polyurethane foam for roller with solvent solution which contains resin of 5weight% or less. Besides, the polyurethane foam before impregnating treated is provided with 10 -10 OMEGA conductivity as a resistance value between two points, thermoplastic polyurethane is used as the resin and prepared so that the viscosity of the solvent solution may become 7.5cPs or less at 25 deg.C. It is thus possible to prevent contamination without degrading characteristics such as conductivity which is originally provided in the polyurethane foam.
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公开(公告)号：JPH0535110A
公开(公告)日：1993-02-12
申请号：JP20983191
申请日：1991-07-26
Applicant: BRIDGESTONE CORP
Inventor： FUKUDA HIROYA , YAGUCHI HITOSHI , AKAHO MASAYUKI , ANDO YUKIO
Abstract: PURPOSE:To obtain a foamed body for a roll which is electrostatically controlled, has a smooth thin film on a surface and is improved in film strength by taking out a cylindrical body consisting of cured foamed body from a mold and coating the surface of the foamed body to form a coating film. CONSTITUTION:At first a mixture contg. a compound containing not less than two active hydrogen, a compound having no less than two isocianate group and a catalyst is mechanically agitated to form a foamed body. For these compound, a polyol or polyisocianate used for producting general soft polyurethane foam or a urethane elastmer foam can be used. Obtained foamed body is pressed into mold 4 having an air vent opening 5 and let it cure. Thus produced roll consists of a cylindrical body 2 with the cured foamed body formed around a shaft 1 and a self film, i.e., a thin skin 2A formed on the surface, and forming of the foamed body keeping low density is easy because a coating film 3 is formed at the outermost layer.
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公开(公告)号：JPH0535109A
公开(公告)日：1993-02-12
申请号：JP20983091
申请日：1991-07-26
Applicant: BRIDGESTONE CORP
Inventor： FUKUDA HIROYA , YAGUCHI HITOSHI , AKAHO MASAYUKI , ANDO YUKIO
Abstract: PURPOSE:To reduce contaminant content in a polyurethane foam down to a specified level or less. CONSTITUTION:This polyurethane foam is a one for roll favorably used in contact with a photosensitive drum of a copying machine, etc., and is cleaned by solvent so that component extracted by acetone become
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公开(公告)号：JPH035172A
公开(公告)日：1991-01-10
申请号：JP14069189
申请日：1989-06-02
Applicant: BRIDGESTONE CORP
Inventor： SATOYOSHI MINORU , ANDO YUKIO
Abstract: PURPOSE:To improve productivity, and to reduce cost by previously forming a roll body having high precision in a main shaft section and shaping a thin-film layer composed of a rubber-like elastic material, etc. onto the roll surface of the roll body through a coating method, etc. CONSTITUTION:A roll body 11 has the dimensional accuracy of the high accuracy of cylindricity of 20mum or less. Left and right main shaft sections 13A, 13B having high dimensional accuracy are incorporated into the roll body 11 having high rigidity and high dimensional accuracy through press fit, etc. under a concentric state by utilizing left and right central holes 12A, 12B. A coating layer 16 consisting of a rubber-like elastic material or a synthetic resin in thickness of 5 - 1000 mum is formed onto the outer circumferential surface of the roller body 11, thus shaping a roll surface as the coating layer 16 is left as it is. Various coating-layer forming systems such as a coater system in which the roll body is coated with a liquefied material and a film is formed, an extrusion system, a calender system, etc. can be adopted as the manufacture of the coating layer 16.
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公开(公告)号：JPS63247067A
公开(公告)日：1988-10-13
申请号：JP8098987
申请日：1987-04-03
Applicant: BRIDGESTONE CORP
Inventor： SUZUKI SHOSUKE , YAMAGUCHI MICHIYUKI , YOKOBORI TAKEO , EGASHIRA YOSHINORI , ISHIWAKA TAKUMI , ANDO YUKIO
Abstract: PURPOSE:To reduce noise generated by rolls, a printing hammers and printing wire due to an impact at the time of printing by employing platen rolls consisting of a specific rubber elastic body fixed concentrically to a core material made up of a metal shaft, plastic shaft or metal shaft covered with a plastic. CONSTITUTION:A rubber elastic body fixed concentrically to a core material of a platen roll contains at least either one of (a) styrene/butadiene copolymerized rubber, (b) nitrile/butadiene copolymerized rubber, (c) butyl rubber and (d) halogenated butyl rubber; and at least one for improving dependence of modulus of elasticity on temperature selected from (1) polystyrene resin, (m) phenol resin, (n) polypropylene resin (o) a reinforced rubber composition wherein short fibers of a thermoplastic polymer having a-(CO-NH)-group in its molecule are graft-polymerized through a precondensate of phenol/ formaldehyde resin onto a vulcanizable rubber and (p) a copolymer comprising a conjugated diolefin, ethylenically unsaturated carboxylic acid and a vinyl monomer copolymerizable with them.
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