At least one mobile part included in a plate separator is configured movable between a first position and a second position, which is different from the first position. At least one biasing portion biases the at least one mobile part toward the first position. The at least one mobile part includes a contact portion that comes into contact with the top plate when a plate holder lifts the top plate upward. The at least one mobile part is configured to be moved toward the second position as being pushed by the top plate when the top plate in contact with the at least one contact portion is moved further upward, thereby allowing an upward movement of the top plate.

A paper feeding device 100 includes a support hook 5 that supports a lower edge of a front side of a bundle of stacked paper sheets X, and a paper trailing edge storing part 32 provided between a lower end of the abutting surface 31 and the paper feeding table 11, and the paper feeding device retracts the lowermost layer paper sheet of the loaded paper sheets so as to store its trailing edge in the paper trailing edge storing part 32 and then advance it.

A slider moving in a sliding direction between first and second positions shifts a second path-defining member, relative to a first path-defining member, between first and second states. A pair of movable members each disposed on a corresponding side of a slider in a width direction is movable individually in the sliding direction to shift between third and fourth states. The movable members, when both in the third state, position the slider to the first position and, when both in the fourth state, position the slider to the second position. Each movable member supports a corresponding widthwise end of the slider immovably in the sliding direction and movably in the width direction. A support frame supporting the second path-defining member supports a widthwise central portion of the slider movably in the sliding direction and rotatably on a plane parallel to the sliding direction and the width direction.

A wrapping or roll-up device including a base, one or more connectors, an arm, and a handle. In embodiments, one or more connectors are connected to the base and are configured to connect the device to a wall or support structure, and/or the arm includes an aperture. In embodiments, a handle includes an extended portion and a grip portion, and at least a portion of the extended portion is configured to extend through the aperture. Further, with embodiments, the extended portion includes a slot disposed about an end of the extended portion. Embodiments may include a tensioner. Methods for wrapping or rolling up an article such as a wrap are also disclosed.

At least one mobile part included in a plate separator is configured movable between a first position and a second position, which is different from the first position. At least one biasing portion biases the at least one mobile part toward the first position. The at least one mobile part includes a contact portion that comes into contact with the top plate when a plate holder lifts the top plate upward. The at least one mobile part is configured to be moved toward the second position as being pushed by the top plate when the top plate in contact with the at least one contact portion is moved further upward, thereby allowing an upward movement of the top plate.

A sheet conveying device includes a conveyor, a curved conveyance passage, a conveyance sensor, and processing circuitry. The conveyor conveys a sheet. The sheet is conveyed by the conveyor along the curved conveyance passage. The conveyance sensor detects a presence of the sheet and is disposed at a curved position of the conveyance passage. The processing circuitry determines clogging of the sheet from an output result of the conveyance sensor. When a specific type of the sheet is conveyed, the processing circuitry stops determination of clogging of the sheet for a period of time from when the conveyance sensor detects passage of a leading end of the sheet to when a trailing end of the sheet passes the conveyance sensor.

A sheet conveyance device includes a reversing conveyance portion and a conveyance guide member. A sheet from a sheet reversing portion travels into and out of the reversing conveyance portion to be switched back so that the conveyance direction of the sheet is switched. The conveyance guide member is provided in the reversing conveyance portion, and has a sheet conveyance face facing the bottom face of the sheet passing through the reversing conveyance portion. The sheet conveyance face has one or more curved portions curved in the up-down direction as viewed from the width direction orthogonal to the conveyance direction of the sheet, and curves the sheet along the curved portion.

A sheet feeder includes a sheet feeding unit configured to feed a sheet from a sheet storage case in a sheet feeding direction orthogonal to a loading direction in which the sheet storage case is loaded into an apparatus main body, and a conveying guide configured to guide the sheet fed by the sheet feeding unit. The conveying guide includes a first guide segment included in the apparatus main body and a second guide segment included in the sheet storage unit. The sheet feeder further includes an edge guide member disposed at an end of the first guide segment. The edge guide member has a guide surface that allows reaction force including a directional force component acting upward and a directional force component acting in a direction opposite to the sheet feeding direction to be generated when the sheet partly projecting from the sheet storage case abuts the guide surface.

A sheet conveying device includes a conveyor, a curved conveyance passage, a conveyance sensor, and processing circuitry. The conveyor conveys a sheet. The sheet is conveyed by the conveyor along the curved conveyance passage. The conveyance sensor detects a presence of the sheet and is disposed at a curved position of the conveyance passage. The processing circuitry determines clogging of the sheet from an output result of the conveyance sensor. When a specific type of the sheet is conveyed, the processing circuitry stops determination of clogging of the sheet for a period of time from when the conveyance sensor detects passage of a leading end of the sheet to when a trailing end of the sheet passes the conveyance sensor.

A winding apparatus winds up a belt-shaped electrode sheet including an active material and a belt-shaped separator sheet made of an insulating material, and includes: a rotatable winding core to which the electrode and sheets are fed at accelerating or decelerating speed, and around which the electrode sheet and the separator sheet are wound; a rotatable transfer roller that defines a transfer path of the electrode sheet and has an outer circumference face on which the electrode sheet is placed; and a swing motion suppressing guide disposed at a position immediately upstream of the transfer roller along the transfer path. The electrode sheet includes: an electrode main body on which the active material is applied; and tabs protruded from a width direction edge portion of the electrode main body and disposed at intervals along a longitudinal direction of the electrode main body.