# US 10,865,063 B2 · Sheet storage device and image forming apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,865,063 B2 - Document ID: US10865063B2 - Status: Granted - Kind: B2 - Application number: 16/225,440 - Filed: 2018-12-19 - Published: 2019-06-27 - Granted: 2020-12-15 - Earliest claimed: 2017-12-27 - Assignees: Canon Kabushiki Kaisha - Applicants: Canon Kabushiki Kaisha - Inventors: Ryosuke Takahashi - Web page: https://patentgrep.com/patent/US10865063B2 ## CPC - B65H 29/14: and introducing into a pile - B65H 1/04: adapted to support articles substantially horizontally, e.g. for separation from top of pile - B65H 29/52: Stationary guides or smoothers - B65H 31/26: Auxiliary devices for retaining articles in the pile - G03G 15/6538: {Devices for collating sheet copy material, e.g. sorters, control, copies in staples form} - B65H 2301/4212: of articles substantially horizontal - B65H 2403/411: Double rack cooperating with one pinion, e.g. for performing symmetrical displacement relative to pinion - B65H 2405/111: Bottom - B65H 2405/121: Locking means - B65H 2511/12: Width - B65H 2511/20: Location in space - G03G 2215/00421: Discharging tray, e.g. devices stabilising the quality of the copy medium, postfixing-treatment, inverting, sorting - B65H: HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES - G03G: ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY ## Abstract There is provided a sheet storage device including a regulation unit that includes a first contact portion configured to contact a stacking unit, and a second contact portion configured to contact a facing member. The first contact portion contacts the stacking unit in a state of being urged toward the stacking unit. The second contact portion contacts the facing member in a state of being urged toward the facing member. ## Claims ### Claim 1 A sheet storage device, comprising: an apparatus main body; a stacking unit disposed on the apparatus main body and configured to stack sheets; a regulation unit configured to move with respect to the apparatus main body, and to regulate edge positions of the sheets to be stacked on the stacking unit; and a facing member disposed on the apparatus main body, at a position facing the stacking unit across the regulation unit, wherein the regulation unit includes a main part that contacts edges of the sheets; a stopper member supported by the main part, the stopper member including a first contact portion and a second contact portion; and an urging member configured to urge the first and second contact portions, wherein the first contact portion is configured to contact the stacking unit by the urging member and the second contact portion is configured to contact the facing member by the urging member. ### Claim 2 (depends on 1) The sheet storage device according to claim 1, wherein the first and the second contact portions are urged toward the stacking unit and the facing member, respectively, in a direction parallel to a stacking direction of the sheets stacked on the stacking unit. ### Claim 3 (depends on 1) The sheet storage device according to claim 1, wherein the stopper member has the first and the second contact portions integrally formed, and wherein the stopper member is a separate member from the main part of the regulation unit. ### Claim 4 (depends on 3) The sheet storage device according to claim 3, wherein the stopper member includes an elastically deformable first urging portion having the first contact portion, and an elastically deformable second urging portion having the second contact portion. ### Claim 5 (depends on 4) The sheet storage device according to claim 4, wherein the stopper member is fixed to the regulation unit by bonding or fastening. ### Claim 6 (depends on 5) The sheet storage device according to claim 5, wherein the regulation unit includes: a first regulation member configured to move in a width direction of the sheets to be stacked on the stacking unit, and to contact one edge of the sheets to regulate the edge position of the sheets in the width direction, and a second regulation member configured to contact the other edge of the sheets to regulate the edge position of the sheets. ### Claim 7 (depends on 6) The sheet storage device according to claim 6, wherein the facing member includes a guide portion configured to guide a movement of the regulation unit in the width direction. ### Claim 8 (depends on 6) The sheet storage device according to claim 6, wherein the first and the second regulation members are movable in the width direction in a state of being sandwiched between the stacking unit and the facing member. ### Claim 9 (depends on 8) The sheet storage device according to claim 8, wherein the regulation unit includes an interlocking member configured to rotate about a rotation shaft disposed on the facing member, and wherein a movement of the first regulation member and a movement of the second regulation member are interlocked by the interlocking member. ### Claim 10 (depends on 9) The sheet storage device according to claim 9, wherein each of the first and the second regulation members includes an operation portion configured to be operated to move each of the first and the second regulation members in the width direction. ### Claim 11 (depends on 1) The sheet storage device according to claim 1, wherein the stopper member and the main part are integrally formed. ### Claim 12 An image forming apparatus, comprising: an image forming unit configured to form an image on a sheet; and a sheet storage device configured to store sheets and feed a sheet to the image forming unit, the sheet storage device including: an apparatus main body including a stacking unit on which sheets are to be stacked; a regulation unit configured to move with respect to the apparatus main body, and to regulate edge positions of the sheets to be stacked on the stacking unit; and a facing member disposed on the apparatus main body, at a position facing the stacking unit across the regulation unit, wherein the regulation unit includes a main part that contacts edges of the sheets; a stopper member supported by the main part, the stopper member including a first contact portion and a second contact portion, and an urging member configured to urge the first and second contact portions, and wherein the first contact portion is configured to contact the stacking unit by the urging member and the second contact portion is configured to contact the facing member by the urging member.