Fixing device having stay and cover fixed thereto by spring
AssigneeBrother Kogyo Kabushiki Kaisha
InventorKei Ishida
Life of this patent
Estimating the term…
Abstract
A fixing device includes a fixing belt, a heater, a nip plate, a pressure roller, a stay, a cover, and a spring. The fixing belt has an inner surface. The heater is configured to heat the fixing belt. The nip plate is configured to contact the inner surface. The pressure roller is configured to press the fixing belt in cooperation with the nip plate. The stay is provided at a position opposite to the pressure roller with respect to the nip plate. The stay is configured to receive a force applied to the nip plate from the pressure roller. The cover is configured to cover the stay. The spring includes a first portion configured to urge the stay to the cover, and a second portion configured to urge the cover to the stay.
Claims17
A fixing device comprising:
- a fixing belt having an inner surface;
- a heater configured to heat the fixing belt;
- a nip plate configured to contact the inner surface;
- a pressure roller configured to press the fixing belt in cooperation with the nip plate;
- a stay provided at a position opposite to the pressure roller with respect to the nip plate, the stay being configured to receive a force applied to the nip plate from the pressure roller;
- a cover configured to cover the stay;
- and
- a spring comprising a first portion in contact with the stay and configured to urge the stay to the cover, and a second portion in contact with the cover and configured to urge the cover to the stay to provide fixing between the stay and the cover.
A fixing device comprising:
- a fixing belt having an inner surface,
- a heater configured to heat the fixing belt;
- a nip plate configured to contact the inner surface,
- a pressure roller configured to press the fixing belt in cooperation with the nip plate;
- a stay provided at a position opposite to the pressure roller with respect to the nip plate, the stay being configured to receive a force applied to the nip plate from the pressure roller;
- a cover configured to cover the stay;
- and
- a spring comprising a first portion configured to urge the stay to the cover, and a second portion configured to urge the cover to the stay,
- wherein the pressure roller has a rotational axis extending in an axial direction,
- wherein the cover comprises an end portion in the axial direction, and
- wherein the spring is positioned at the end portion of the cover in the axial direction.
A fixing device comprising:
- a fixing belt having an inner surface;
- a heater configured to heat the fixing belt,
- a nip plate configured to contact the inner surface;
- a pressure roller configured to press the fixing belt in cooperation with the nip plate;
- a stay provided at a position opposite to the pressure roller with respect to the nip plate, the stay being configured to receive a force applied to the nip plate from the pressure roller;
- a cover configured to cover the stay;
- and
- a spring comprising a first portion configured to urge the stay to the cover, and a second portion configured to urge the cover to the stay,
- wherein the cover includes an outer surface having a concaved portion which is concaved to the stay, the spring being placed in the concaved portion.
Dependencies are inferred from the claim text.