US 12,312,192 B2
Sheet feeding device and image forming system incorporating the sheet feeding device
Kazunori Konno, Kanagawa (JP); Masanobu Yoshida, Kanagawa (JP); Hidetoshi Kojima, Kanagawa (JP); Tomoyuki Okada, Kanagawa (JP); Tatsuya Sugawara, Kanagawa (JP); and Yusuke Hirono, Kanagawa (JP)
Assigned to Ricoh Company, Ltd., Tokyo (JP)
Appl. No. 18/006,946
Filed by Kazunori Konno, Kanagawa (JP); Masanobu Yoshida, Kanagawa (JP); Hidetoshi Kojima, Kanagawa (JP); Tomoyuki Okada, Kanagawa (JP); Tatsuya Sugawara, Kanagawa (JP); and Yusuke Hirono, Kanagawa (JP)
PCT Filed Sep. 28, 2021, PCT No. PCT/IB2021/058817
§ 371(c)(1), (2) Date Jan. 26, 2023,
PCT Pub. No. WO2022/079531, PCT Pub. Date Apr. 21, 2022.
Claims priority of application No. 2020-172110 (JP), filed on Oct. 12, 2020.
Prior Publication US 2023/0271798 A1, Aug. 31, 2023
Int. Cl. B65H 1/14 (2006.01)
CPC B65H 1/14 (2013.01) [B65H 2405/31 (2013.01); B65H 2801/06 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A sheet feeding device comprising:
a housing;
a sheet stacker included in the housing, the sheet stacker configured to stack at least one sheet;
a stacker elevator configured to elevate the sheet stacker;
an extension sheet stacker attached to the sheet stacker, the extension sheet stacker configured to extend outward from the housing;
a support configured to support the extension sheet stacker, the support having an inclined portion configured to diagonally extend in a sheet conveyance direction to the housing from a position upstream from a center of the extension sheet stacker in the sheet conveyance direction, when viewed from a width direction of the at least one sheet; and
a rotary member at a contact portion of the housing at which the support contacts the housing, the rotary member in contact with a side wall surface of the housing, wherein
when viewed from the width direction of the at least one sheet, the support includes a right-angled triangular truss having an opposite side facing the housing, an adjacent side being in contact with the extension sheet stacker, and a slanted side being the inclined portion that diagonally extends in the sheet conveyance direction to the housing from the position upstream from the center of the extension sheet stacker in the sheet conveyance direction.