Belt transporting device and image forming apparatus

摘要

A belt transporting device includes a belt; first and second adjustment members provided at two respective ends of a tension roller in a belt width direction orthogonal to a direction of rotation of the belt, the first and second adjustment members each being movable by receiving a force from the belt; and a link member that interlocks the movement of the first adjustment member and the movement of the second adjustment member. If the belt is laterally shifted in the belt width direction, one of the first and second adjustment members moves by receiving a force from the belt while the other is moved by the link member such that the tension roller is tilted with respect to a driving roller.

主权项

1. A belt transporting device comprising:
an endless belt configured to rotate; a first stretching member and a second stretching member between which the belt is stretched; a first adjustment member provided at one end side of the first stretching member in a belt width direction that is orthogonal to a direction of rotation of the belt, the first stretching member being movable by receiving a force from the belt; a second adjustment member provided at another end side of the first stretching member in the belt width direction and being movable by receiving a force from the belt; and an interlocking device configured to interlock the movement of the first adjustment member and the movement of the second adjustment member, wherein, if the belt is laterally shifted in the belt width direction, one of the first adjustment member and the second adjustment member moves by receiving a force from the belt while the other of the first adjustment member and the second adjustment member is moved by the interlocking device such that the first stretching member is tilted with respect to the second stretching member; wherein the interlocking device includes a connecting member that connects a portion of the first adjustment member and a portion of the second adjustment member to each other and is swingable about a swing pin provided substantially at the center thereof in the belt width direction.