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1. WO2010026866 - SHEET FEEDER AND IMAGE FORMING APPARATUS

Publication Number WO/2010/026866
Publication Date 11.03.2010
International Application No. PCT/JP2009/064385
International Filing Date 17.08.2009
IPC
B65H 1/14 2006.1
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
08with means for advancing the pile to present the articles to a separating device
14comprising positively-acting mechanical devices
B65H 3/12 2006.1
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
08using pneumatic force
12Suction bands, belts, or tables moving relatively to the pile
B65H 3/48 2006.1
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
48Air blast acting on edges of, or under, articles
CPC
B65H 1/14
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
08with means for advancing the articles to present the articles to the separating device
14comprising positively-acting mechanical devices
B65H 2402/10
BPERFORMING OPERATIONS; TRANSPORTING
65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
2402Features of construction
10Modular construction
B65H 2405/15
BPERFORMING OPERATIONS; TRANSPORTING
65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
2405Parts for holding the handled material
10Cassettes, holders, bins, decks, trays, supports or magazines for sheets stacked substantially horizontally
15Large capacity supports arrangements
B65H 2405/332
BPERFORMING OPERATIONS; TRANSPORTING
65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
2405Parts for holding the handled material
30Other features of supports for sheets
33Compartmented support
332Superposed compartments
B65H 2511/20
BPERFORMING OPERATIONS; TRANSPORTING
65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
2511Dimension; Position; Number; Identification; Occurence
20Location in space
B65H 2511/51
BPERFORMING OPERATIONS; TRANSPORTING
65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
2511Dimension; Position; Number; Identification; Occurence
50Occurence
51Presence
Applicants
  • コニカミノルタビジネステクノロジーズ株式会社 Konica Minolta Business Technologies, Inc. [JP]/[JP] (AllExceptUS)
  • 鈴木 智雄 SUZUKI Tomoo [JP]/[JP] (UsOnly)
Inventors
  • 鈴木 智雄 SUZUKI Tomoo
Priority Data
2008-22806505.09.2008JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) SHEET FEEDER AND IMAGE FORMING APPARATUS
(FR) DISPOSITIF D'AVANCE DE FEUILLE ET APPAREIL DE FORMATION D'IMAGE
(JA) 給紙装置および画像形成装置
Abstract
(EN) A sheet feeder comprising a sheet receiving section (P20) having an elevating/lowering plate (960), a member (920) for regulating the sides of sheets, an air blowing section (986) for blowing air toward the sides of sheets at upper levels out of the sheets received in the sheet receiving section, a sheet suction-conveyance section (VT20) installed above the sheet receiving section with a gap kept from the uppermost sheet of the sheets received in the sheet receiving section, a reflective sensor (970) for detecting the upper limit position of stacked sheets received in the sheet receiving section, and a control section for performing control to elevate the elevating/lowering plate when an output from the reflective sensor indicates an intermediate state provided between a sheet brought into a floating state by an air flow which is blown from the air blowing section, and a sheet maintaining the stacked state.  As a result, stabilized sheet-feeding can be ensured even if a thick sheet of a small size is used, and the upper limit position of sheets can be controlled by a simple constitution.
(FR) L'invention porte sur un dispositif d'avance de feuille qui comporte une section de réception de feuille (P20) avec une plaque d'élévation/ d’abaissement (960), un élément (920) de régulation des côtés de feuilles, une section de soufflage d'air (986) pour souffler de l'air vers les côtés de feuilles à des niveaux supérieurs parmi les feuilles reçues dans la section de réception de feuilles, une section d'aspiration-transport de feuille (VT20) installée au-dessus de la section de réception de feuille avec un espace qui est maintenu à partir de la feuille de dessus parmi les feuilles reçues dans la section de réception de feuille, un capteur de réflexion (970) pour détecter la position de la limite supérieure des feuilles empilées reçues dans la section de réception de feuille, et une section de commande pour exécuter une commande d'élévation de la plaque d'élévation/d’abaissement lorsqu'une sortie du capteur de réflexion indique un état intermédiaire entre une feuille amenée dans un état flottant par un courant d'air qui est soufflé à partir de la section de soufflage d'air, et une feuille conservant l'état empilé. Il en résulte qu'il est possible d’assurer une avance de feuille stabilisée même si une feuille épaisse de petite taille est utilisée, et la position de limite supérieure des feuilles peut être commandée d'une manière simple.
(JA)  昇降板(960)を有する用紙収納部(P20)と、用紙の側面を規制する用紙側面規制部材(920)と、用紙収納部に収納される用紙の内、上部の用紙の側面に向けて空気を吹きつける空気吹きつけ部(986)と、用紙収納部の上方に設けられ、用紙収納部に収納される用紙の最上位紙と間隙を有して設置される用紙吸引搬送部(VT20)と、用紙収納部に収納される積載状態の用紙の上限位置を検知する反射式センサ(970)と、反射式センサの出力が、空気吹きつけ部の吹きつけ空気流により浮遊状態とされる用紙と積載状態を維持する用紙との間にある状態を示す出力となったとき、昇降板を上昇させるように制御する制御部と、により給紙装置を構成する。その結果、小サイズで、厚手の用紙でも、安定した給紙を可能とするとともに、 用紙の上限位置の制御を簡単な構成で達成できる。
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