Patent ID: 9169092
Filing Date: 2015-10-27
Classification: B65H

Abstract:
1. A sheet feeding device, comprising: a housing; a conveyor roller mountable and dismountable to and from the housing, the conveyor roller including a first side portion, a second side portion on a side opposite to the first side portion, and an outer circumferential surface disposed between the first side portion and the second side portion and configured to come into contact with a sheet, the conveyor roller being driven and rotated in a predetermined rotation direction for conveying the sheet; a first shaft rotatably and axially supported in the housing, the first shaft including a first engaging portion at a distal end thereof to be connectable with the first side portion or the second side portion of the conveyor roller; a second shaft coaxially disposed with the first shaft, and rotatably and axially supported in the housing, the second shaft including a second engaging portion at a distal end thereof facing the first engaging portion to be connectable with the first side portion or the second side portion of the conveyor roller; and drive units respectively connected with the first shaft and the second shaft, and configured to drive and rotate the first shaft and the second shaft in the rotation direction, wherein the first side portion of the conveyor roller is formed with an engaged portion engageable with the first engaging portion or the second engaging portion for transmitting a rotational driving force from the first shaft or from the second shaft to the conveyor roller, the second side portion of the conveyor roller is formed with a bearing portion configured to be axially supported by the first engaging portion or the second engaging portion in relatively rotatable manner, and the conveyor roller is mountable to the housing both in a first mounted state, in which the engaged portion is engaged with the first engaging portion, and the bearing portion is supported by the second shaft in relatively rotatable manner so that the conveyor roller is integrally rotated with the first shaft in the rotation direction, and a second mounted state, in which the engaged portion is engaged with the second engaging portion, and the bearing portion is supported by the first shaft in relatively rotatable manner so that the conveyor roller is integrally rotated with the second shaft in the rotation direction.