Image-forming apparatus
View Patent ↗An image-forming apparatus includes: first and second frame members opposing each other; image-holding members each having a rotation shaft; a supporting unit provided to the first frame member and having insertion holes each supporting an end portion of a rotation shaft of a corresponding image-holding member inserted in an insertion direction from the second frame member to the first frame member; and flat elastic bodies provided to the respective insertion holes, each flat elastic body having a plate member bent to form: an attachment part attached to the supporting unit; a leg part extending from the attachment part in the direction opposite to the insertion direction; and an elastic part extending from the leg part in the insertion direction through the insertion hole to press the end portion of the rotation shaft at a position spaced apart from the insertion hole in the insertion direction.
1. An image-forming apparatus comprising:
a housing including a first frame member and a second frame member opposed to the first frame member;
a plurality of image-forming units each including an image-holding member on which an image is formed, the image-holding member having a rotation shaft;
a supporting unit provided to the first frame member, the supporting unit having a plurality of insertion holes each receiving and supporting an end portion of a rotation shaft of a corresponding one of the plurality of image-holding members inserted in an insertion direction from the second frame member to the first frame member; and
a plurality of flat elastic bodies provided to the respective insertion holes, each flat elastic body having a plate member that is bent to form:
an attachment part that is attached to a surface of the supporting unit facing in a direction opposite to the insertion direction;
a leg part extending from the attachment part in the direction opposite to the insertion direction; and
an elastic part extending from the leg part in the insertion direction through the insertion hole to press the end portion of the rotation shaft against an edge of the insertion hole at a position spaced apart from the insertion hole in the insertion direction.
2. The image-forming apparatus according to claim 1 , wherein when viewed in an axial direction, the end portion of each rotation shaft received in the corresponding insertion hole contacts first and second circumferential portions of the insertion hole such that a tangential line of the end portion of the rotation shaft at the first circumferential portion is inclined with respect to a horizontal direction at an angle larger than that at which a tangential line of end portion of the rotation shaft at the second circumferential portion is inclined with respect to the horizontal direction, the second circumferential portion being positioned upstream of the first circumferential position with respect to a direction of rotation of the rotation shaft.
3. The image-forming apparatus according to claim 2 , wherein the attachment part of each flat elastic body is attached to a corresponding portion of the supporting unit in surface-to-surface contact.
4. The image-forming apparatus according to claim 1 , wherein the attachment part of each flat elastic body is attached to a corresponding portion of the supporting unit in surface-to-surface contact.