Belt device, transfer device, and image forming apparatus

A belt device, comprising:

• a belt wound around a plurality of support rotators and configured to travel by rotation of the plurality of support rotators;
• a belt contact member disposed on a rotation shaft of one support rotator of the plurality of support rotators, the belt contact member being configured to contact an end of the belt and move in an axial direction of the rotation shaft together with movement of the belt in the axial direction;
• a displacement member disposed on the rotation shaft and including an inclined face configured to move the one support rotator, the displacement member being configured to move in the axial direction in accordance with movement of the belt contact member;
• a guide configured to contact the inclined face and restrict a moving direction of the displacement member;
• a shaft support disposed on the rotation shaft and configured to rotatably support the one support rotator and the rotation shaft;
• a restriction member disposed on the rotation shaft and secured to the rotation shaft to limit axial movement thereof on the rotation shaft, the restriction member being configured to restrict movement of the one support rotator and the rotation shaft in the axial direction;
• and
• an intermediate member disposed on the rotation shaft and between the shaft support and the restriction member in the axial direction, the intermediate member being configured to elastically deform and restrict contact between the shaft support and the restriction member.