Abstract: According to one embodiment, a medium convey apparatus is provided with an oscillation unit, a cooling unit, a convey unit, a temperature detector and a controller. The oscillation unit applies oscillation to a thin medium as a to-be-conveyed target. The cooling unit cools the air around the thin medium. The convey unit conveys the thin medium. The temperature detector detects the temperature around the medium. The controller controls the cooling unit based on the temperature detected by the temperature detector.

Abstract: In an apparatus, a pile of sheets is mounted on a support base, and is brought into contact with a guide. A high-frequency vibration is applied to the sheets from a vibrating part which is pressed to the pile. A sheet on the uppermost surface of the pile is transferred by a feed roller. The guide has a guide end defining a guide entrance between the guide end and the feed roller, through which the sheets is passed. The guide end is arranged substantially in a virtual plane including a contact position at which the vibrating part is in contact with the uppermost surface of the pile, and substantially parallel with the sheets. A separation section for separating sheets from each other is arranged behind the entrance, and an air blow-off section for blowing air into the side of the pile is provided in the vicinity of the entrance.

Abstract: A pile of sheets is held by a separator/feeder and a vibrator is brought into contact with a first region of the pile with a first contact pressure. High frequency vibrations are applied from the vibrator to the sheet. A takeout mechanism is brought into contact with and pressed against the pile with a second contact pressure and sheets are taken out one by one from the top surface of the pile by the takeout mechanism. A first sensor detects the position of the vibrator and outputs a first detection signal, while a second sensor detects the uppermost surface of the pile and outputs a second detection signal. A control section selects first and second contact pressures according to the first and second detection signals and maintains the first and second contact pressures.

Abstract: In a device that separates a sheet and extracts the sheet from a stack of the sheets, the stack of sheets is placed on a sheet feeding unit. A vibrator is in contact with the top surface of the stack at a spot to vibrate the sheets at a high frequency. The high-frequency vibration reduces the adhesion and frictional force among the sheets. A sheet extraction mechanism conveys each sheet.

Abstract: In an apparatus, a pile of sheets is mounted on a support base, and is brought into contact with a guide. A high-frequency vibration is applied to the sheets from a vibrating part which is pressed to the pile. A sheet on the uppermost surface of the pile is transferred by a feed roller. The guide has a guide end defining a guide entrance between the guide end and the feed roller, through which the sheets is passed. The guide end is arranged substantially in a virtual plane including a contact position at which the vibrating part is in contact with the uppermost surface of the pile, and substantially parallel with the sheets. A separation section for separating sheets from each other is arranged behind the entrance, and an air blow-off section for blowing air into the side of the pile is provided in the vicinity of the entrance.

Abstract: A sheet material separating apparatus includes a sheet material separating unit. This unit includes a low frictional guide sheet making a surface contact with an upper surface of an uppermost one in stacked sheet materials, and a vibrator contacting a surface of the guide sheet opposite to another surface of the guide sheet contacting the upper surface of the uppermost sheet material. A length from a part of the surface of the guide sheet on which the vibrator contacts to any position on a peripheral edge of the surface is longer than one wavelength of an excited sound wave.

Abstract: A pile of sheets is held by a separator/feeder and a vibrator is brought into contact with a first region of the pile with a first contact pressure. High frequency vibrations are applied from the vibrator to the sheet. A takeout mechanism is brought into contact with and pressed against the pile with a second contact pressure and sheets are taken out one by one from the top surface of the pile by the takeout mechanism. A first sensor detects the position of the vibrator and outputs a first detection signal, while a second sensor detects the uppermost surface of the pile and outputs a second detection signal. A control section selects first and second contact pressures according to the first and second detection signals and maintains the first and second contact pressures.

Abstract: In a belt driving mechanism, an endless belt is wrapped around a driving roller and a driven roller. The endless belt runs between the driving roller and the driven roller. The axis of the driven roller is placed so as to form a certain angle of torsion to a plane containing opposite ends of the driving roller and a middle point between opposite ends of the driven roller. Rotation of the driven roller is decelerated or stopped with the driving roller keeping on rotating to run the endless belt. Resistance is thus offered to between the endless belt and the driven roller while keeping the driving roller rotating to run the endless belt, so that the endless belt is slipped on the driven roller.

Abstract: In a device that separates a sheet and extracts the sheet from a stack of the sheets, the stack of sheets is placed on a sheet feeding unit. A vibrator is contact with the top surface of the stack at a spot to vibrate the sheets at a high frequency. The high-frequency vibration reduces the adhesion and frictional force among the sheets. A sheet extraction mechanism conveys each sheet.

Abstract: In a belt driving mechanism, an endless belt is wrapped around a driving roller and a driven roller. The endless belt runs between the driving roller and the driven roller. The axis of the driven roller is placed so as to form a certain angle of torsion to a plane containing opposite ends of the driving roller and a middle point between opposite ends of the driven roller. Rotation of the driven roller is decelerated or stopped with the driving roller keeping on rotating to run the endless belt. Resistance is thus offered to between the endless belt and the driven roller while keeping the driving roller rotating to run the endless belt, so that the endless belt is slipped on the driven roller.