A sheet feeding device, which is included in an image forming apparatus and includes a device attachment body, includes a sheet container configured to accommodate a sheet, a support configured to support a lower face of the sheet in the sheet container, a sheet width regulator configured to regulate a position of the sheet in a sheet width direction, a conveying force applier configured to apply a sheet conveying force in a sheet conveying direction to the sheet in the sheet container, and a sheet guide disposed above the sheet in the sheet container and configured to regulate movement of the sheet in an upper direction.

The invention relates to a brake device for producing a brake torque counter to a torque acting on a rotatably supported member, wherein the brake device has: at least one toothed brake ring which is mechanically actively connected to the rotatably supported or supportable member, a plurality of bending-resistant brake levers which each have at a first lever end at least one stop which engages in the tooth arrangement of the brake ring and which are each rotatably supported on a second lever end opposite the first lever end, wherein each brake lever is connected to a force element for applying a brake force in such a manner that, as a result of the brake force via the stop of the respective brake lever which is in engagement with the tooth arrangement of the brake ring, a brake torque is produced on the brake ring tangentially counter to the active direction of the torque in order to apply a brake torque to the rotatably supported or supportable member, wherein the brake levers are arranged with respect to the toothed brake ring in such a manner that, during a rollover of a brake lever, in which the stop of the respective brake lever engages in a subsequent tooth flank of the tooth arrangement, all remaining brake levers with their respective stops remain in engagement with their respective tooth flank of the tooth arrangement.

Provided are a device for producing a disposable wearable article and a method for producing a disposable wearable article capable of suppressing the occurrence of a sealing failure by making it difficult for a doubled sheet to open against an elastic force of an absorber. A device for producing a disposable wearable article includes a jointing/cutting unit (60) provided in a line (L1) for continuously conveying a sheet (W) and configured to join parts of the doubled sheet (W) at opposite sides of an absorber (C) and then cut the joined parts and a pressing unit (70) arranged upstream of the jointing/cutting unit (60) in a conveying direction (a). The pressing unit (70) includes a pressing mechanism (71, 72) configured to press the sheet (W) together with the absorber (C) in a thickness direction.

A sheet processing device for pressing a fold line formed in a sheet, the sheet processing device comprises a pressing portion configured to press a sheet while rotating about a rotation axis. The pressing portion includes a pressing unit having a projecting shape, disposed over a predetermined range in a direction of the rotation axis to have a position in a rotation direction about the rotation axis changed according to the direction of the rotation axis, and an impact absorbing member provided at a part of the pressing unit of the pressing portion, abutting on the sheet at first in the rotation direction of the pressing portion, the impact absorbing member configured to reduce impact upon abutting on the sheet.

A sheet feeding device, which is included in an image forming apparatus and includes a device attachment body, includes a sheet container configured to accommodate a sheet, a support configured to support a lower face of the sheet in the sheet container, a sheet width regulator configured to regulate a position of the sheet in a sheet width direction, a conveying force applier configured to apply a sheet conveying force in a sheet conveying direction to the sheet in the sheet container, and a sheet guide disposed above the sheet in the sheet container and configured to regulate movement of the sheet in an upper direction.

A paper folding device that folds a planar paper sheet while conveying the paper sheet along a paper sheet conveyance surface includes a pair of first conveyance rollers disposed on an upstream side in a paper sheet conveyance direction, a pair of second conveyance rollers disposed on a downstream side in the paper sheet conveyance direction, a switching gate plate installed on the paper sheet conveyance surface between both pairs of the rollers, a folding plate disposed above the switching gate plate, and a control unit that controls an operation of an entire device.

A sheet feeding device, which is included in an image forming apparatus and includes a device attachment body, includes a sheet container configured to accommodate a sheet, a support configured to support a lower face of the sheet in the sheet container, a sheet width regulator configured to regulate a position of the sheet in a sheet width direction, a conveying force applier configured to apply a sheet conveying force in a sheet conveying direction to the sheet in the sheet container, and a sheet guide disposed above the sheet in the sheet container and configured to regulate movement of the sheet in an upper direction.

A sheet processing device for pressing a fold line formed in a sheet, the sheet processing device comprises a pressing portion configured to press a sheet while rotating about a rotation axis. The pressing portion includes a pressing unit having a projecting shape, disposed over a predetermined range in a direction of the rotation axis to have a position in a rotation direction about the rotation axis changed according to the direction of the rotation axis, and an impact absorbing member provided at a part of the pressing unit of the pressing portion, abutting on the sheet at first in the rotation direction of the pressing portion, the impact absorbing member configured to reduce impact upon abutting on the sheet.

A sheet processing apparatus is configured to press a fold line that is formed on a sheet. The sheet processing apparatus includes: a sheet supporting unit configured to support the sheet in a pressing direction for pressing the fold line; a pressing unit configured to press the fold line that is formed on the sheet that is supported by the sheet supporting unit; and a pressing-force generating unit configured to generate a pressing force for pressing the sheet supporting unit against the pressing unit at a central part in a direction along which the fold line is formed.

A sheet processing apparatus is configured to press a fold line that is formed on a sheet. The sheet processing apparatus includes: a sheet supporting unit configured to support the sheet in a pressing direction for pressing the fold line; a pressing unit configured to press the fold line that is formed on the sheet that is supported by the sheet supporting unit; and a pressing-force generating unit configured to generate a pressing force for pressing the sheet supporting unit against the pressing unit at a central part in a direction along which the fold line is formed.