Yarn path guide mechanism and textile machine

A yarn path guide mechanism capable of guiding running fiber bundles, comprising:

• a roller which allows the fiber bundles to be wound onto the roller;
• a supporting shaft which supports the roller to be rotatable;
• a first supporter which makes contact with an outer circumferential surface of the supporting shaft at least on one side of the roller in an axial direction of the supporting shaft;
• a second supporter which is provided at a position where the supporting shaft is sandwiched between the second supporter and the first supporter and is able to make contact with the outer circumferential surface of the supporting shaft at least on the other side of the roller in the axial direction, the other side being opposite to the one side;
• and
• a biasing member which is configured to bias the second supporter in a direction in which the supporting shaft is sandwiched between the second supporter and the first supporter,
• the supporting shaft being supported in such a way that the supporting shaft is clamped between the first supporter and the second supporter, and
• when a virtual straight line which is orthogonal to the axial direction and passes through a winding center that is the center in a circumferential direction of the roller at a part where the fiber bundles are wound onto the roller and a rotation center of the supporting shaft is a first virtual straight line whereas the virtual straight line which extends in a direction orthogonal to both the axial direction and the first virtual straight line and passes through the rotation center is a second virtual straight line, the second supporter making contact with a part of the outer circumferential surface of the supporting shaft, which is positionally opposite to the winding center over the second virtual straight line.