Patent application number | Description | Published |
20080296829 | SHEET TAKEOUT DEVICE - A sheet takeout mechanism has a takeout roller that rotates in contact with a sheet located at a takeout position, and a motor that intermittently rotates the takeout roller. A triangular suction port is formed on a suction surface of the takeout roller and has a vertex located downstream in a rotation direction of the takeout roller. When a negative pressure is exerted on the sheet via the suction port, the suction force is weak at the beginning of suction and then increases gradually. | 12-04-2008 |
20080315512 | SHEET PROCESSING DEVICE - A posture control device has a posture detecting section, an upstream conveying section, a posture control section, and a downstream conveying section along a conveying path for mail items. The distance from a nip of the upstream conveying section and a nip of the posture control section (D-E distance) is designed to be substantially as long as the longest one of the mail items to be processed by the device which has the greatest length along a conveying direction. The distance from the nip of the posture control section and a nip of the downstream conveying section (E-F distance) is designed to be slightly longer the shortest one of the mail items to be processed by the device which has the shortest length along the conveying direction. | 12-25-2008 |
20090309292 | MAIL FEEDING DEVICE - A feeding device for feeding each of accumulated mail items P onto a conveyance path includes a pickup belt which runs along a pickup position, and a negative-pressure chamber opposing the pickup position with the pickup belt interposed therebetween. When each mail item is picked up from the pickup position and reaches a nip between conveyance belts, air is introduced into the negative-pressure chamber to eliminate negative pressure therein. | 12-17-2009 |
20100001456 | PAPER SHEET FEEDING DEVICE - A paper sheet feeding device for sequentially feeding, to a conveyance path, mail items simultaneously received includes a suction mechanism provided adjacent to a pickup position. The suction mechanism includes a chamber having an opening opposed to the pickup position, a guide plate provided at the opening of the chamber, and two projections vertically arranged on the surface of the guide plate. When air is drawn from the pickup position through a plurality of suction holes formed in the guide plate, the leading one of the mail items closest to the pickup position is drawn to the pickup position, and is curved between the two projections. A handling nozzle blows air into the space that is formed between the leading mail item and a subsequent mail item when the leading mail item is curved. | 01-07-2010 |
20100207315 | VALVE UNIT AND PAPER SHEET TAKEOUT DEVICE - A valve unit which circulates and blocks air has a first block connected to upstream suction tubes, a second block facing this first block and connected to downstream suction tubes, a shield plate disposed in a space S between the first block and the second block, and a motor which rotates this shield plate. The shield plate is provided with a connection hole which connects the upstream suction tube to the downstream suction tube, and a connection hole which connects the upstream suction tube to the downstream suction tube. | 08-19-2010 |
20100270730 | PAPER SHEET PICKUP DEVICE - A paper sheet pickup device includes a pickup belt configured to run along one of accumulated paper sheets, which is positioned at the most downstream side with respect to a direction of accumulation, and a negative pressure chamber provided inside the pickup belt. The negative pressure chamber is connected to a pump, and a valve unit is interposed therebetween. Further, an air inlet tube is connected to the negative pressure chamber for supplying air therein. | 10-28-2010 |
20110001285 | STIFFNESS DETECTOR, STIFFNESS DETECTION METHOD, AND PAPER SHEET PROCESSOR INCLUDING STIFFNESS DETECTOR - A stiffness detector includes a bending portion configured to bend a paper sheet to be carried. The stiffness detector transmits acoustic waves to an incidence point on an inner surface of the paper sheet which is bent by the bending portion and is carried, thereby exciting Lamb waves. The stiffness detector receives leaky waves of the Lamb waves emitted from a detection point on the inner surface of the paper sheet. The stiffness detector specifies a maximum crest value based on the received signals, and judges whether the paper sheet is an unimpaired sheet based on the specified maximum crest value. | 01-06-2011 |
20110031683 | SHEET MASS MEASURING UNIT - A mass measuring unit includes two driving rollers vertically separate from each other and intersecting the direction of conveyance of a mail matter. Servo motors for driving the driving rollers are connected to torque detection units. A control unit controls motor control units to cause them to impart a rate difference between the driving rollers to rotate the mail matter during its conveyance, and to cause the torque detection units to detect the torque values of the servo motors. The control unit compares the thus detected torque values with the torque values of the servo motors detected when the servo motors are idling without rotating the mail matter, thereby measuring the mass of the mail matter using a calculation unit. | 02-10-2011 |
20110042886 | VALUE DEVICE AND PAPER SHEET PICKUP APPARATUS - A valve device is provided with a first block connected to an upstream-side suction tube that is connected to a negative-pressure chamber, a second block connected to a downstream-side suction tube that is connected to a pump, first and second shielding plates rotatably interposed between the first and second blocks, and servo motors for rotating the shielding plates. Each of the shielding plates has a plurality of air passing holes, and are rotated in opposite directions. | 02-24-2011 |
20110142580 | MAIL FEEDING DEVICE - A feeding device for feeding each of accumulated mail items P onto a conveyance path includes a pickup belt which runs along a pickup position, and a negative-pressure chamber opposing the pickup position with the pickup belt interposed therebetween. When each mail item is picked up from the pickup position and reaches a nip between conveyance belts, air is introduced into the negative-pressure chamber to eliminate negative pressure therein. | 06-16-2011 |
20110254220 | SHEET HANDLING APPARATUS - According to one embodiment, a pickup device includes a separation mechanism for applying, to a to-be-subsequently-fed mail item picked up from accumulated mail items, a separation force exerting in a direction opposite to a mail item pickup direction. The separation mechanism comprises an outer drum with suction holes that face the to-be-subsequently-fed mail item during rotation, an inner drum provided inside and concentric with the outer drum and having air holes that overlap with the suction holes during rotation, a pump for drawing air through the suction holes facing the to-be-subsequently-fed mail item and the air holes overlapping with them to attach the to-be-subsequently-fed mail item to the outer peripheral surface of the outer drum. A controller rotates the inner and outer drums in association with each other to apply a sufficient separation force to the to-be-subsequently-fed mail item. | 10-20-2011 |