Drive transmission device, image reading apparatus, and recording apparatus
AssigneeCanon Kabushiki Kaisha
InventorsKuniaki Sato, Hiroyuki Saito
Life of this patent
Estimating the term…
Abstract
A drive transmission device includes a chassis fixed to an apparatus main body and a driving roller that is driven by a driving source. A belt member transmits rotational force of the driving roller. A tension roller contacts the belt member to apply tension to the belt member. A support member supports the tension roller rotatably and is swingable about a rotational shaft of the chassis. A screw fixes the support member to the chassis at a predetermined position. A retaining member is able to be engaged with the chassis, in which the support member is arranged and fixed between a part of the retaining member and the chassis in an insertion direction of the screw.
Claims14
A drive transmission device comprising:
- a chassis fixed to an apparatus main body;
- a driving roller that is driven by a driving source and rotates around a rotational shaft of the chassis;
- a belt member that transmits rotational force of the driving roller;
- a tension roller that contacts the belt member to thereby apply tension to the belt member;
- a support member that supports the tension roller rotatably, is swingable about the rotational shaft, and includes an engagement portion that is able to be engaged with the chassis;
- a screw by which the support member is fixed to the chassis at a predetermined position;
- and
- a retaining member that is able to be engaged with the chassis,
- wherein the support member is fixed between a part of the retaining member and the chassis in an insertion direction of the screw, and
- wherein the retaining member is arranged between the engagement portion and the tension roller.
A drive transmission device comprising:
- a chassis fixed to an apparatus main body;
- a driving roller that is driven by a driving source and rotates around a rotational shaft on the chassis;
- a belt member that transmits rotational force of the driving roller;
- a tension roller that contacts the belt member to thereby apply tension to the belt member;
- a support member that supports the tension roller rotatably and is swingable about the rotational shaft;
- a screw by which the support member is fixed to the chassis at a predetermined position;
- and
- a retaining member that is able to be engaged with the chassis,
- wherein the support member is fixed between a part of the retaining member and the chassis in an insertion direction of the screw,
- wherein the retaining member includes an insertion hole in which the screw is inserted, and a first engagement portion and a second engagement portion that are able to be engaged with the chassis, and the insertion hole is provided between the first engagement portion and the second engagement portion, and
- wherein the chassis includes an opening engaged by the first engagement portion.
Dependencies are inferred from the claim text.