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1. CN112771277 - CHARGING ROLL FOR ELECTROPHOTOGRAPHIC EQUIPMENT

Office
Chine
Numéro de la demande 202080005091.1
Date de la demande 23.01.2020
Numéro de publication 112771277
Date de publication 07.05.2021
Type de publication A
CIB
F16C 13/00
FMÉCANIQUE; ÉCLAIRAGE; CHAUFFAGE; ARMEMENT; SAUTAGE
16ÉLÉMENTS OU ENSEMBLES DE TECHNOLOGIE; MESURES GÉNÉRALES POUR ASSURER LE BON FONCTIONNEMENT DES MACHINES OU INSTALLATIONS; ISOLATION THERMIQUE EN GÉNÉRAL
CARBRES; ARBRES FLEXIBLES; MOYENS MÉCANIQUES POUR TRANSMETTRE UN MOUVEMENT DANS UNE GAINE FLEXIBLE; PIÈCES DU MÉCANISME DES ARBRES-MANIVELLES; PIVOTS; LIAISONS PIVOTANTES; PIÈCES ROTATIVES AUTRES QUE LES PIÈCES DE TRANSMISSION MÉCANIQUE, DE COUPLAGE, D'EMBRAYAGE OU DE FREINAGE; PALIERS
13Rouleaux, tambours, disques ou éléments analogues; Paliers ou leurs montages
G03G 15/02
GPHYSIQUE
03PHOTOGRAPHIE; CINÉMATOGRAPHIE; TECHNIQUES ANALOGUES UTILISANT D'AUTRES ONDES QUE DES ONDES OPTIQUES; ÉLECTROGRAPHIE; HOLOGRAPHIE
GÉLECTROGRAPHIE; ÉLECTROPHOTOGRAPHIE; MAGNÉTOGRAPHIE
15Appareils pour procédés électrographiques utilisant un dessin de charge
02pour déposer une charge uniforme, p.ex. pour sensibiliser; Dispositifs pour la décharge corona
CPC
F16C 13/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
13Rolls, drums, discs, or the like
G03G 15/0233
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
15Apparatus for electrographic processes using a charge pattern
02for laying down a uniform charge, e.g. for sensitising; Corona discharge devices
0208by contact, friction or induction, e.g. liquid charging apparatus
0216by bringing a charging member into contact with the member to be charged, e.g. roller, brush chargers
0233Structure, details of the charging member, e.g. chemical composition, surface properties
G03G 2215/021
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
2215Apparatus for electrophotographic processes
02Arrangements for laying down a uniform charge
021by contact, friction or induction
Déposants SUMITOMO RIKO COMPANY LIMITED
住友理工株式会社
Inventeurs SAITO YOSHIHIRO
斋藤仁宏
UKAI HIROSHI
鹈饲浩
Mandataires 北京聿宏知识产权代理有限公司 11372
北京聿宏知识产权代理有限公司 11372
Données relatives à la priorité 2019014443 30.01.2019 JP
Titre
(EN) CHARGING ROLL FOR ELECTROPHOTOGRAPHIC EQUIPMENT
(ZH) 电子照相设备用带电辊
Abrégé
(EN)
Provided is a charging roll for electrophotographic equipment which can provide a high-quality image at the end of life even in a high-speed machine having a long life. In the charging roll (10) for electrophotographic equipment, an outer surface layer 16 of an elastic layer 14 includes a binder resin 22, large-diameter particles 18 having an average particle diameter of 15-50 microns, and small-diameter particles 20 having an average particle diameter of 3-15 microns, a difference in average particle diameter between the large-diameter particles 18 and the small-diameter particles 20 is 10-35 microns, the small-diameter particles 20 are arranged in one layer in the surface layer 16, the average distance between the small-diameter particles 20 is not more than 1.2 times the average particle diameter of the small-diameter particles 20, the thickness a of the binder resin 22 covering the large-diameter particles 18 is within the range of 1.5-3.5 microns, the thickness b of the binder resin 22 covering the small-diameter particles 20 is 3.0-6.0 microns, and the thickness b is larger than the thickness a.

(ZH)
本发明提供一种在高寿命的高速机中也能够在寿命末期提供优质的图像的电子照相设备用带电辊。在电子照相设备用带电辊10中,弹性体层14的外周的表层16含有粘合剂树脂22、平均粒径为15μm以上50μm以下的大径颗粒18、以及平均粒径为3μm以上且小于15μm的小径颗粒20,大径颗粒18与小径颗粒20的平均粒径之差为10μm以上35μm以下,小径颗粒20在表层16中以一层配置,小径颗粒20间的平均距离为小径颗粒20的平均粒径的1.2倍以下,覆盖大径颗粒18的粘合剂树脂22的厚度a在1.5~3.5μm的范围内,覆盖小径颗粒20的粘合剂树脂22的厚度b在3.0~6.0μm的范围内,厚度b比厚度a厚。

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