IMAGE HEATING APPARATUS

摘要

An image heating apparatus includes first and second rotatable members for forming a nip for heating therein a toner image on a sheet; an endless belt for contacting an outer surface of the first rotatable member and heat the first rotatable member; first and second rollers provided inside the endless belt and to rotatably support the endless belt; first and second bearings for rotatably supporting the first and second rollers; an elastic member contactable to the first bearing and to the second bearing and for urging the first roller and the second roller in directions away from each other; and a preventing member for preventing the elastic member from moving in directions of expansion and contraction thereof when the elastic member is out of contact with the first bearing and the second bearing.

主权项

1. An image heating apparatus comprising:
first and second rotatable members configured and positioned to form a nip for heating therein a toner image on a sheet; an endless belt configured to contact an outer surface of said first rotatable member and heat said first rotatable member; first and second rollers provided inside said endless belt and to rotatably support said endless belt; first and second bearings configured to rotatably support said first and second rollers; an elastic member contactable to said first bearing and to said second bearing and configured and positioned to urge said first roller and said second roller in directions away from each other; and a preventing member configured and positioned to prevent said elastic member from moving in directions of expansion and contraction thereof when said elastic member is out of contact with said first bearing and said second bearing.