A sheet conveying device comprising: an abutment member configured to be rotatable, the abutment member including at least a first abutment portion and a second abutment portion against which a leading edge of a sheet conveyed abuts; a force applying member; characterised by a cam including a first force reception portion and a second force reception portion, the cam and the abutment member being configured to rotate integrally; and a regulating member in contact with the cam, wherein the regulating member is configured to urge the cam with the force applying member; wherein the cam includes an engagement portion configured to engage with the regulating member, and in a case where the regulating member engages with the engagement portion, the abutment member is retained in a standby position where rotation of the abutment member is restricted; wherein the first force reception portion is configured to receive force to rotate the abutment member in a first rotation direction from the force applying member; and the second force reception portion is configured to receive force to rotate the abutment member in a second rotation direction that is opposite to the first rotation direction from the force applying member, wherein in a case where the abutment portion of the abutment member retained in the standby position is pushed by the leading edge of the sheet, the abutment member rotates in the first rotation direction from the standby position, and the second force reception portion contacts with the regulating member, and wherein a part of the cam which abuts on the regulating member is switched from the second force reception portion to the first force reception portion in response to the first abutment portion being pushed by the leading edge of the sheet in a state that the second force reception portion abuts on the regulating member, and the abutment member being configured to rotate in the first rotation direction. an abutment member configured to be rotatable, the abutment member including at least a first abutment portion and a second abutment portion against which a leading edge of a sheet conveyed abuts; a force applying member; characterised by a cam including a first force reception portion and a second force reception portion, the cam and the abutment member being configured to rotate integrally; and a regulating member in contact with the cam, wherein the regulating member is configured to urge the cam with the force applying member; wherein the cam includes an engagement portion configured to engage with the regulating member, and in a case where the regulating member engages with the engagement portion, the abutment member is retained in a standby position where rotation of the abutment member is restricted; wherein the first force reception portion is configured to receive force to rotate the abutment member in a first rotation direction from the force applying member; and the second force reception portion is configured to receive force to rotate the abutment member in a second rotation direction that is opposite to the first rotation direction from the force applying member, wherein in a case where the abutment portion of the abutment member retained in the standby position is pushed by the leading edge of the sheet, the abutment member rotates in the first rotation direction from the standby position, and the second force reception portion contacts with the regulating member, and wherein a part of the cam which abuts on the regulating member is switched from the second force reception portion to the first force reception portion in response to the first abutment portion being pushed by the leading edge of the sheet in a state that the second force reception portion abuts on the regulating member, and the abutment member being configured to rotate in the first rotation direction.