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1. EP3509852 - USAGE DETERMINATION OF MULTI-FEED PREVENTION ROLLER

Office
European Patent Office
Application Number 18738567
Application Date 05.01.2018
Publication Number 3509852
Publication Date 17.07.2019
Publication Kind A4
IPC
G03G 15/00
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
15Apparatus for electrographic processes using a charge pattern
B41J 11/24
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
11Devices or arrangements for supporting or handling copy material in sheet or web form
24Detents, brakes, or couplings for feed rollers or platens
B41J 11/36
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
11Devices or arrangements for supporting or handling copy material in sheet or web form
36Blanking or long feeds; Feeding to a particular line, e.g. by rotation of platen or feed roller
B65H 1/26
BPERFORMING OPERATIONS; TRANSPORTING
65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
1Supports or magazines for piles from which articles are to be separated
26with auxiliary supports to facilitate introduction or renewal of the pile
B65H 3/52
BPERFORMING OPERATIONS; TRANSPORTING
65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
3Separating articles from piles
46Supplementary devices or measures to assist separation or prevent double feed
52Friction retainers acting on under or rear side of article being separated
B65H 5/06
BPERFORMING OPERATIONS; TRANSPORTING
65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
5Feeding articles separated from piles; Feeding articles to machines
06by rollers
CPC
B65H 3/0669
BPERFORMING OPERATIONS; TRANSPORTING
65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
3Separating articles from piles
02using friction forces between articles and separator
06Rollers or like rotary separators
0669Driving devices therefor
B65H 3/0684
BPERFORMING OPERATIONS; TRANSPORTING
65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
3Separating articles from piles
02using friction forces between articles and separator
06Rollers or like rotary separators
0684on moving support, e.g. pivoting, for bringing the roller or like rotary separator into contact with the pile
B65H 3/5261
BPERFORMING OPERATIONS; TRANSPORTING
65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
3Separating articles from piles
46Supplementary devices or measures to assist separation or prevent double feed
52Friction retainers acting on under or rear side of article being separated
5246Driven retainers, i.e. the motion thereof being provided by a dedicated drive
5253the retainers positioned under articles separated from the top of the pile
5261Retainers of the roller type, e.g. rollers
B65H 7/02
BPERFORMING OPERATIONS; TRANSPORTING
65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
7Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
02by feelers or detectors
B65H 7/12
BPERFORMING OPERATIONS; TRANSPORTING
65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
7Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
02by feelers or detectors
06responsive to presence of faulty articles or incorrect separation or feed
12responsive to double feed or separation
B65H 2403/20
BPERFORMING OPERATIONS; TRANSPORTING
65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
2403Power transmission; Driving means
20Belt drives
Applicants HEWLETT PACKARD DEVELOPMENT CO
Inventors AOKI EIJI
LEE JIN SOO
Designated States
Title
(DE) NUTZUNGSBESTIMMUNG EINER MEHRFACHVORSCHUBVERHINDERUNGSROLLE
(EN) USAGE DETERMINATION OF MULTI-FEED PREVENTION ROLLER
(FR) DÉTERMINATION D'UTILISATION D'UN ROULEAU DE PRÉVENTION D'INTRODUCTION MULTIPLE
Abstract
(EN)
A sheet feeding apparatus includes a sheet stacker to stack at least one sheet; a sheet feed roller disposed at one side of the sheet stacker and to feed a sheet fed from the sheet stacker; a multi-feed prevention roller disposed to face the sheet feed roller and to prevent multi-feed of the sheet fed from the sheet stacker; a magnetic torque limiter disposed coaxially with the multi-feed prevention roller; a hall sensor disposed at one side of the magnetic torque limiter and to detect rotation of the magnetic torque limiter; and a controller configured to rotate the sheet feed roller in a state in which the sheet feed roller and the multi-feed prevention roller are in contact with each other without a sheet and to identify a lifetime of the multi-feed prevention roller by using a signal output from the hall sensor.

(FR)
L’invention concerne un appareil d’introduction de feuilles comprenant un empileur de feuilles destiné à empiler au moins une feuille ; un rouleau d'introduction de feuilles disposé sur un côté de l'empileur de feuilles et destiné à introduire une feuille introduite depuis l'empileur de feuilles ; un rouleau de prévention d'introduction multiple disposé de façon à faire face au rouleau d'introduction de feuilles et à empêcher une introduction multiple de la feuille introduite à partir de l'empileur de feuilles ; un limiteur de couple magnétique disposé coaxial au rouleau de prévention d'introduction multiple ; un capteur à effet hall disposé sur un côté du limiteur de couple magnétique et destiné à détecter la rotation du limiteur de couple magnétique ; et un dispositif de commande conçu pour faire tourner le rouleau d'introduction de feuilles dans un état dans lequel le rouleau d’introduction de feuilles et le rouleau de prévention d'introduction multiple sont en contact l'un avec l'autre sans feuille et pour identifier une durée de vie du rouleau de prévention d'introduction multiple à l'aide d'une sortie de signal provenant du capteur à effet hall.