The ornamental design for a guideroller, as shown and described.
FIG. 1 is a perspective view of a guide roller;
FIG. 2 is a front view thereof;
FIG. 3 is a right side view thereof;
FIG. 4 is a top view thereof;
FIG. 5 is a back view thereof;
FIG. 6 is a cross-sectional view thereof taken along line 6-6 in FIG. 2; and,
FIG. 7 is a right side view showing the guide roller in use with a pulley, the broken lines forming no part of the claim.
The subject article is a guide roller which can be used for rotatably supporting a pulley for guiding cutting wire or the like. The guide roller comprises a housing including bearings and a central shaft partly inserted into the housing. As shown in FIG. 7, a pulley is mounted on the outer periphery of the housing which rotates around the central shaft. A left side view of the guide roller is a mirror image of the right side view thereof. A bottom view of the guide roller is a mirror image of the top view thereof.