A sheet conveying device comprising: a main body; an accommodating tray having a sheet accommodating unit and detachably mounted on the main body; a conveying roller provided in the main body for conveying a sheet accommodated in the sheet accommodating unit; a driving member that is provided in the main body and that supplies a drive force to the conveying roller; and a clutch mechanism that disconnects a drive force transmitting path when the accommodating tray is detached from the main body (1 A) and that connects the drive force transmitting path when the accommodating tray is attached to the main body, wherein the clutch mechanism includes a link that moves in mechanical conjunction with the attachment and detachment of the accommodating tray to and from the main body and a movable member that moves in association with the movement of the link so as to selectively connect and disconnect the drive force transmitting path, wherein the drive force is transmitted through the drive force transmitting path from the driving member to the conveying roller, wherein the drive force transmitting path includes a plurality of gears (16, 17, 18), and the movable member is at least one of the plurality of gears, wherein when the movable member moves and disengages with the other gears (16, 18), the drive force transmitting path is disconnected, characterized in that the clutch mechanism further includes: a support member that rotatably supports the movable member and is movable relative to the other gears (16, 18), a first spring that exerts on the movable member a first elastic force in an engaging direction toward a position at which the movable member engages with other gears, and a second spring that exerts on the support member a second elastic force for urging the support member in a separating direction opposed to the engaging direction. a main body; an accommodating tray having a sheet accommodating unit and detachably mounted on the main body; a conveying roller provided in the main body for conveying a sheet accommodated in the sheet accommodating unit; a driving member that is provided in the main body and that supplies a drive force to the conveying roller; and a clutch mechanism that disconnects a drive force transmitting path when the accommodating tray is detached from the main body (1 A) and that connects the drive force transmitting path when the accommodating tray is attached to the main body, wherein the clutch mechanism includes a link that moves in mechanical conjunction with the attachment and detachment of the accommodating tray to and from the main body and a movable member that moves in association with the movement of the link so as to selectively connect and disconnect the drive force transmitting path, wherein the drive force is transmitted through the drive force transmitting path from the driving member to the conveying roller, wherein the drive force transmitting path includes a plurality of gears (16, 17, 18), and the movable member is at least one of the plurality of gears, wherein when the movable member moves and disengages with the other gears (16, 18), the drive force transmitting path is disconnected, characterized in that the clutch mechanism further includes: a support member that rotatably supports the movable member and is movable relative to the other gears (16, 18), a first spring that exerts on the movable member a first elastic force in an engaging direction toward a position at which the movable member engages with other gears, and a second spring that exerts on the support member a second elastic force for urging the support member in a separating direction opposed to the engaging direction.