Conveying apparatus and recording device
AssigneeCanon Kabushiki Kaisha
InventorsShuichi Tokuda, Takashi Sasaki, Yuki Emoto, Koki Kudo, Hideyasu Ishihara
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Abstract
Provided is a conveying apparatus, including: a conveying roller that conveys a recording medium; a first helical gear that rotates integrally with the conveying roller; a gear unit that engages with the first helical gear and generates a thrust force to the conveying roller. The gear unit includes a second helical gear and a third helical gear, and a thrust force that the conveying roller receives from the second helical gear acts in an opposite direction of a thrust force that the conveying roller receives from the third helical gear.
Claims12
A conveying apparatus comprising:
- a conveying roller that conveys a recording medium;
- a first helical gear that rotates integrally with the conveying roller;
- a gear unit including a second helical gear and a third helical gear, the gear unit engaging with the first helical gear and generating a thrust force on the conveying roller;
- a regulating mechanism regulating movement of the conveying roller in a rotary shaft direction;
- and
- a spring positioned to press the conveying roller to the regulating mechanism in a pressing direction with a pressing force,
- wherein the thrust force that the conveying roller receives from the second helical gear acts in an opposite direction of the thrust force that the conveying roller receives from the third helical gear, and
- wherein movement of the conveying roller caused by a resultant force in the rotary shaft direction is regulated by the regulating mechanism regardless of a rotating direction of the conveying roller, the resultant force including the pressing force and the thrust force.
A recording device, comprising:
- a recording portion that performs recording operation on a recording medium;
- and
- a conveying apparatus that conveys the recording medium, the conveying apparatus including:
- a conveying roller that conveys the recording medium;
- a first helical gear that rotates integrally with the conveying roller;
- a gear unit including a second helical gear and a third helical gear, the gear unit engaging with the first helical gear and generating a thrust force on the conveying roller;
- a regulating mechanism regulating movement of the conveying roller in a rotary shaft direction;
- and
- a spring positioned to press the conveying roller to the regulating mechanism in a pressing direction with a pressing force,
- wherein the thrust force that the conveying roller receives from the second helical gear acts in an opposite direction of the thrust force that the conveying roller receives from the third helical gear, and
- wherein movement of the conveying roller caused by a resultant force in the rotary shaft direction is regulated by the regulating mechanism regardless of a rotating direction of the conveying roller, the resultant force including the pressing force and the thrust force.
Dependencies are inferred from the claim text.