Patent ID: 8838001

Claim:
A fixing device comprising: a flexible tubular member that is circularly movable in a moving direction, has an inner peripheral surface and has end portions in an axial direction; a nip member disposed so as to be in sliding contact with the inner surface of the tubular member; a backup member configured to provide a nip region in cooperation with the nip member upon nipping the tubular member between the backup member and the nip member; a stay that is located inside the tubular member and supports the nip member, the stay being configured to receive a load from the backup member; an attaching member that is located inside the tubular member and extends from one end portion to another end portion in the axial direction, the attaching member being fixed to the stay; and a leaf spring member that is disposed so as to be in sliding contact with the inner peripheral surface of the tubular member and is configured to urge the inner peripheral surface of the tubular member outward in a radial direction of the tubular member, the leaf spring member including at least two leaf spring members that are attached to the attaching member.