Image heating apparatus
AssigneeCanon Kabushiki Kaisha
InventorsShinichiro Wakahara, Koki Watanabe, Jiro Shirakata, Koji Takematsu
Life of this patent
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Abstract
An image heating apparatus includes a coil for generating magnetic flux, a rotatable heat generation member for generating heat by the magnetic flux generated by the coil to heat a recording material, and a magnetic flux adjusting member for adjusting a distribution of the magnetic flux from the coil toward the heat generating member. The apparatus further includes a motor, a first drive transmission member, and a second drive transmission member for moving the magnetic flux adjusting member.
Claims16
An image heating apparatus, comprising:
- a coil for generating magnetic flux;
- a rotatable heat generating member for generating heat by a magnetic flux generated by the coil to heat an image on a recording material;
- a magnetic flux adjusting member for adjusting a distribution, with respect to a rotational axis direction of said heat generating member, of the magnetic flux directing from said coil toward said heat generating member;
- a motor;
- a first gear, mounted to one end portion of said magnetic flux adjusting member, for transmitting a driving force from said motor to said magnetic flux adjusting member;
- a second gear, mounted to the other end portion of said magnetic flux adjusting member, for transmitting a driving force from said motor to said magnetic flux adjusting member;
- and
- moving means for moving said magnetic flux adjusting member by transmitting the driving force from said motor to both of said first gear and said second gear.
An image heating apparatus, comprising:
- a coil for generating magnetic flux;
- a rotatable heat generating member for generating heat by a magnetic flux generated by the coil to heat an image on a recording material;
- a magnetic flux adjusting means, having a movable member, for adjusting a distribution, with respect to a rotational axis direction of said heat generating member, of the magnetic flux directing from said coil toward said heat generating member;
- a motor;
- a first drive transmission member, mounted to one end portion of said magnetic flux adjusting means, for transmitting a driving force from said motor to said magnetic flux adjusting means;
- a second drive transmission member, mounted to the other end portion of said magnetic flux adjusting means, for transmitting a driving force from said motor to said magnetic flux adjusting means;
- a third drive transmission member for transmitting a driving force from said motor to said first drive transmission member;
- a fourth drive transmission member for transmitting the driving force from said motor to said second drive transmission member;
- and
- a shaft member supporting said third drive transmission member and said fourth drive transmission member.
Dependencies are inferred from the claim text.