Sheet pickup apparatus and image forming apparatus having the same
AssigneeSamsung Electronics Co., Ltd.
InventorMin-keun Song
Life of this patent
Estimating the term…
Abstract
A sheet pickup apparatus and image forming apparatus are provided. The sheet pickup apparatus includes a roller support member rotatably disposed in a sheet feeding unit and comprising roller support portions connected by a hinge, a driving shaft rotatably disposed in an end of the roller support member to transmit rotational force to the roller support member, a pickup roller rotatably disposed in another end of the roller support member, a damper member disposed to absorb impact force by limiting rotation of the roller support member, and a power transmitting member disposed in the roller support member to transmit the rotational force to the pickup roller.
Claims19
A sheet pickup apparatus, which is disposed in a sheet feeding unit of an image forming apparatus, the sheet pickup apparatus comprising:
- a roller support member rotatably disposed in the sheet feeding unit, the roller support member comprising at least two roller support portions connected by at least one hinge;
- a driving shaft rotatably disposed in one end of the roller support member connected in the sheet feeding unit, the driving shaft to transmit rotational force to the roller support member;
- a pickup roller rotatably disposed in another end of the roller support member;
- a damper member disposed to absorb impact force by limiting rotation of the roller support member;
- and
- a power transmitting member disposed in the roller support member, the power transmitting member to transmit the rotational force of the driving shaft to the pickup roller,
- wherein, when the driving shaft receives the rotational force from a driving source of the sheet feeding unit, the roller support member is rotated to hit against the damper member, and then a roller support portion in which the pickup roller is disposed is rotated so that the pickup roller is brought into contact with a sheet loaded in the sheet feeding unit and picks up the sheet.
An image forming apparatus comprising:
- a sheet feeding unit disposed in a main body and storing sheets;
- a sheet pickup apparatus disposed in the sheet feeding unit, the sheet pickup apparatus to pick up and supply the sheets one by one;
- and
- an image forming unit to form an image on a sheet which is picked up and supplied by the sheet pickup apparatus,
- wherein the sheet pickup apparatus comprises:
- a roller support member rotatably disposed in the sheet feeding unit, the roller support member comprising at least two roller support portions connected by at least one hinge,
- a driving shaft rotatably disposed in one end of the roller support member connected to the sheet feeding unit, the driving shaft to transmit rotational force to the roller support member,
- a pickup roller rotatably disposed in another end of the roller support member;
- a damper member disposed to absorb impact force by limiting rotation of the roller support member, and
- a power transmitting member disposed in the roller support member, the power transmitting member to transmit the rotational force of the driving shaft to the pickup roller,
- wherein, when the driving shaft receives rotational force from a driving source of the sheet feeding unit, the roller support member is rotated to hit against the damper member, and then a roller support portion in which the pickup roller is disposed is rotated so that the pickup roller is brought into contact with a sheet loaded in the sheet feeding unit and picks up the sheet.
Dependencies are inferred from the claim text.