# US 11,440,757 B2 · Sheet feeding apparatus, printing apparatus, and sheet feeding method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,440,757 B2 - Document ID: US11440757B2 - Status: Granted - Kind: B2 - Application number: 16/938,194 - Filed: 2020-07-24 - Published: 2021-02-11 - Granted: 2022-09-13 - Earliest claimed: 2019-08-09 - Assignees: Canon Kabushiki Kaisha - Applicants: Canon Kabushiki Kaisha - Inventors: Yuya Yasuda; Masahiro Kawanishi - Web page: https://patentgrep.com/patent/US11440757B2 ## CPC - B65H 3/0684: {on moving support, e.g. pivoting, for bringing the roller or like rotary separator into contact with the pile} - B65H 3/0661: {for separating inclined-stacked articles with separator rollers above the stack} - B65H 3/0669: {Driving devices therefor} - B65H 3/34: Article-retaining devices controlling the release of the articles to the separators - B65H 5/066: {the articles resting on rollers or balls} - B65H 5/068: {between one or more rollers or balls and stationary pressing, supporting or guiding elements} - B65H 9/06: Movable stops or gauges, e.g. rising and falling front stops {(B65H11/007 takes precedence)} - B65H 29/20: by contact with rotating friction members, e.g. rollers, brushes, or cylinders {(with suction rollers B65H29/243)} - B65H 2402/60: Coupling, adapter or locking means - B65H 2403/42: Spur gearing - B65H 2403/481: Planetary - B65H 2404/1521: rotating, pivoting or oscillating around an axis, e.g. parallel to the roller axis - B65H 2801/06: Office-type machines, e.g. photocopiers - B65H 2801/39: Scanning - B65H: HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES ## Abstract In order to downsize an overall apparatus without setting the swing angle of a swing member to be unnecessarily large, a pickup roller, which is for feeding a document disposed on a feeding tray, is supported by a pickup arm that is swingable about a rotation shaft. Depending on the rotational direction of the rotation axis, the pickup arm swings between a first position, in which the pickup roller is in contact with the document on the feeding tray, and a second position, in which the pickup roller is above and not in contact with the feeding tray. An arm member is rotated by rotation of the rotation axis after the pickup arm swings to the second position. ## Claims ### Claim 1 A sheet feeding apparatus comprising: a sheet disposing unit on which a sheet is disposed; a feeding member configured to feed the sheet disposed on the sheet disposing unit; a first swing member configured to support the feeding member and be swingable between a first position, at which the feeding member is in contact with the sheet disposed on the sheet disposing unit, and a second position, at which the feeding member is more distanced from the sheet disposing unit, compared to the first position, wherein the first swing member abuts on a bumper at the second position; a rotation member configured to rotate in a first direction for swinging the first swing member from the second position to the first position and rotate in a second direction that is opposite to the first direction; and a second swing member configured to swing in accordance with rotation of the rotation member in the second direction and push the first swing member toward the bumper in accordance with rotation of the rotation member, after the first swing member abuts on the bumper. ### Claim 2 (depends on 1) The sheet feeding apparatus according to claim 1, wherein the second swing member deforms an elastic member by rotation of the rotation member in the second direction after the first swing member abuts on the bumper, so that the first swing member is pushed toward the bumper in accordance with a restoring force of the elastic member. ### Claim 3 (depends on 2) The sheet feeding apparatus according to claim 2, further comprising: an urging member configured to urge the first swing member in a direction from the second position toward the first position, wherein a moment about the rotation member caused by the elastic member urging the first swing member in a direction from the first position toward the second position is larger than a moment about the rotation member caused by the urging member. ### Claim 4 (depends on 1) The sheet feeding apparatus according to claim 1, wherein the feeding member rotates in accordance with rotation of the rotation member. ### Claim 5 (depends on 1) The sheet feeding apparatus according to claim 1, further comprising: a third swing member configured to swing the second swing member in the first direction by rotary force of the rotation member in the second direction after the first swing member swings to the second position. ### Claim 6 A sheet feeding apparatus comprising: a sheet disposing unit on which a sheet is disposed; a feeding member configured to feed the sheet disposed on the sheet disposing unit; a first swing member configured to support the feeding member and be swingable between a first position, at which the feeding member is in contact with the sheet disposed on the sheet disposing unit, and a second position, at which the feeding member is more distanced from the sheet disposing unit, compared to the first position; a rotation member configured to rotate in a first direction for swinging the first swing member from the second position to the first position and rotate in a second direction that is opposite to the first direction; a second swing member configured to swing in the first direction in accordance with rotation of the rotation member in the second direction after the first swing member swings to the second position; and a third swing member configured to swing the second swing member in the first direction by rotary force of the rotation member in the second direction after the first swing member swings to the second position, wherein the second swing member includes an internal gear, and wherein the third swing member includes a planetary gear configured to mesh with the internal gear in accordance with rotation of the rotation member in the second direction after the first swing member swings to the second position. ### Claim 7 A sheet feeding apparatus comprising: a sheet disposing unit on which a sheet is disposed; a feeding member configured to feed the sheet disposed on the sheet disposing unit; a first swing member configured to support the feeding member and be swingable between a first position, at which the feeding member is in contact with the sheet disposed on the sheet disposing unit, and a second position, at which the feeding member is more distanced from the sheet disposing unit, compared to the first position, wherein the first swing member abuts on a bumper at the second position; a rotation member configured to rotate in a first direction for swinging the first swing member from the second position to the first position and rotate in a second direction that is opposite to the first direction; a second swing member configured to swing in accordance with rotation of the rotation member in the second direction and push the first swing member toward the bumper in accordance with rotation of the rotation member, after the first swing member abuts on the bumper; and a stopper configured to move according to swinging of the first swing member, wherein, in a case in which the first swing member swings to the second position, the stopper moves to a regulating position at which a position of a leading edge of the sheet disposed on the sheet disposing unit is regulated, and, in a case in which the first swing member swings to the first position, the stopper moves to a retracted position at which a position of a leading edge of the sheet disposed on the sheet disposing unit is not regulated. ### Claim 8 A printing apparatus comprising: a sheet disposing unit on which a sheet is disposed; a feeding member configured to feed the sheet disposed on the sheet disposing unit; a printing unit configured to print an image on the sheet fed by feeding member; a first swing member configured to support the feeding member and be swingable between a first position, at which the feeding member is in contact with the sheet disposed on the sheet disposing unit, and a second position, at which the feeding member is more distanced from the sheet disposing unit, compared to the first position, wherein the first swing member abuts on a bumper at the second position; a rotation member configured to rotate in a first direction for swinging the first swing member from the second position to the first position and rotate in a second direction that is opposite to the first direction; and a second swing member configured to swing in accordance with rotation of the rotation member in the second direction and to push the first swing member toward the bumper in accordance with rotation of the rotation member, after the first swing member abuts on the bumper. ### Claim 9 (depends on 8) The printing apparatus according to claim 8, wherein the second swing member deforms an elastic member by rotation of the rotation member in the second direction after the first swing member abuts on the bumper, so that the first swing member is pushed toward the bumper in accordance with a restoring force of the elastic member. ### Claim 10 (depends on 9) The printing apparatus according to claim 9, further comprising: an urging member configured to urge the first swing member in a direction from the second position toward the first position, wherein a moment about the rotation member caused by the elastic member urging the first swing member in a direction from the first position toward the second position is larger than a moment about the rotation member caused by the urging member. ### Claim 11 (depends on 8) The printing apparatus according to claim 8, further comprising: a third swing member configured to swing the second swing member in the first direction by rotary force of the rotation member in the second direction after the first swing member swings to the second position. ### Claim 12 (depends on 8) The printing apparatus according to claim 8, further comprising: a stopper configured to move according to swinging of the first swing member, wherein, in a case in which the first swing member swings to the second position, the stopper moves to a regulating position at which a position of a leading edge of the sheet disposed on the sheet disposing unit is regulated, and, in a case in which the first swing member swings to the first position, the stopper moves to a retracted position at which a position of a leading edge of the sheet disposed on the sheet disposing unit is not regulated. ### Claim 13 (depends on 8) The printing apparatus according to claim 8, wherein the feeding member rotates in accordance with rotation of the rotation member.