Abrégé

A printing apparatus includes a first and a second housing parts, a printing part, and a conveying part which includes a holding part that holds a first paper sheet and a second paper sheet in an overlapped state and respectively pulled out from a first paper roll and a second paper roll, and conveys the first paper sheet out of the first paper sheet and the second paper sheet held by the holding part to the printing part. The holding part includes a contacting member contacting the second paper sheet out of the first paper sheet and the second paper sheet in an overlapped state, and an opposing member arranged opposing the contacting member and contacting the first paper sheet. A first frictional force between the contacting member and the second paper sheet is larger than a second frictional force between the opposing member and the first paper sheet.

Classes IPC  ?

• B41J 13/00 - Dispositifs ou agencements spécialement adaptés pour supporter ou manipuler un matériau de copie en petites longueurs, p. ex. des feuilles
• B65H 20/02 - Progression des bandes par un rouleau de friction
• B65H 16/02 - Support de la bobine
• B65H 5/28 - Alimentation en articles stockés en bandes roulées ou pliées
• B41J 15/18 - Appareils fonctionnant avec plusieurs bandes
• B65H 19/12 - Levage, transport ou insertion de la bobineEnlèvement du noyau vide
• B41J 11/00 - Dispositifs ou agencements pour supporter ou manipuler un matériau de copie en feuilles ou en bandes
• B41J 15/04 - Dispositifs de supports, d'alimentation ou de guidageMontages pour rouleaux ou axes

Abrégé

A printer includes a first housing part, a second housing part, a printing part that prints on the first paper sheet and the second paper sheet, a conveying part that includes a holding part that is configured to hold the overlapping first paper sheet and the second paper sheet respectively pulled out from a first paper roll and a second paper roll, and conveys the first paper sheet out of the first paper sheet and the second paper sheet held by the holding part to the printing part, a first paper sheet sensor that detects the presence of the first paper sheet, and a controlling part that makes the conveying part convey the second paper sheet held by the holding part to the printing part when the first paper sheet sensor detects that there is no first paper sheet to be conveyed to the printing part.

Classes IPC  ?

• B41J 13/00 - Dispositifs ou agencements spécialement adaptés pour supporter ou manipuler un matériau de copie en petites longueurs, p. ex. des feuilles
• B65H 5/28 - Alimentation en articles stockés en bandes roulées ou pliées
• B41J 15/04 - Dispositifs de supports, d'alimentation ou de guidageMontages pour rouleaux ou axes
• B41J 11/00 - Dispositifs ou agencements pour supporter ou manipuler un matériau de copie en feuilles ou en bandes
• B41J 15/18 - Appareils fonctionnant avec plusieurs bandes
• B65H 9/12 - Positionnement des articles, p. ex. orientementDispositifs à cet effet portés par les pinces à articles
• B65H 19/12 - Levage, transport ou insertion de la bobineEnlèvement du noyau vide

Abrégé

A sheet cutter includes: a stationary knife including a straight blade part formed in a straight-line shape in a longitudinal direction; a movable knife including a cutting edge part formed in the shape of V-character, opposed to mesh with the straight blade part of the stationary knife, the movable knife being able to freely move toward or back from the stationary knife; a movable knife pressing member for pressing the movable knife against the stationary knife; and a movable knife driver driving the movable knife forward or backward. The movable knife pressing member pressure contacts the movable knife against the stationary knife by a compression coil spring contained inside the movable knife pressing member.

Classes IPC  ?

• B26D 1/00 - Coupe d'une pièce caractérisée par la nature ou par le mouvement de l'élément coupantAppareils ou machines à cet effetÉléments coupants à cet effet
• B26D 5/08 - Moyens pour actionner l'outil de coupe afin d'effectuer la coupe
• B27B 3/00 - Scies alternatives à lames multiplesAutres machines à scies à lames de scie alternatives, spécialement conçues pour le sciage en long des troncs
• B27B 13/00 - Machines à scier à ruban, ou à lame sans finOrganes ou équipement ad hoc
• B26D 5/20 - Dispositions pour manœuvrer et commander les machines ou les dispositifs de coupe, découpage, poinçonnage, perforation ou séparation autrement que par coupe l'organe de coupe et d'avance de la pièce ayant une action conjuguée

Abrégé

Provided is an extremely compact sheet cutter, which has a reduced thickness of a movable blade press-contact member and, as a matter of course, sharply cuts a sheet without leaving an uncut portion and breaking, at a low cost. The sheet cutter is provided with a fixed blade having a straight blade section formed straight in a longitudinal direction; a movable blade, which has a blade tip section formed in a V-shape to face the straight blade section of the fixed blade by meshing with the straight blade section, and is configured to freely advance and retract to and from the fixed blade; a movable blade press-contact member for bringing the movable blade into press-contact with the fixed blade; and a movable blade driving means for driving the movable blade to advance and retract. The movable blade pressure-contact member brings the movable blade into pressure-contact with the fixed blade by a compression coil spring incorporated in the movable blade press-contact member.

Classes IPC  ?

• B26D 1/08 - Coupe d'une pièce caractérisée par la nature ou par le mouvement de l'élément coupantAppareils ou machines à cet effetÉléments coupants à cet effet comportant un élément qui ne suit pas le mouvement de la pièce ayant un élément coupant se déplaçant linéairement l'élément coupant étant animé d'un mouvement de va-et-vient du genre guillotine