| 摘要 |
PROBLEM TO BE SOLVED: To improve work efficiency by providing movable marking-off pins and a guide roller on a notch ruler expandably connected with a marking-off tool section and a drop tool section, and conducting the marking-off work on a tread and a riser with the same notch ruler. SOLUTION: A drop tool section 3 provided with a guide roller 3B4 at the tip is slidably connected to a marking-off tool section 2 made of a shape having a U-shaped (groove type) cross section, and the length is expanded/shrunk and fixed to the prescribed length by a stopper screw 3A2. Marking-off pins 2E2, 3A52 are fitted to the marking-off tool section 2 and the drop tool section 3 movably along oblong holes. When a vinyl floor tile 5 is to be stuck to a tread 5A, the guide roller 3B4 is moved in the width direction along a riser, and marking-off is applied at the end section cut position of the floor tile 5. When marking-off is to be applied to a P-tile on the riser, the guide roller 3B4 is kept in contact with the tread 5A, and marking-off is applied on the riser side. Marking-off can be applied to the tread 5A and the riser with the same ruler. |
