PROBLEM TO BE SOLVED: To provide a runner that can smoothly run even when load is applied and a set equipped with the runner.SOLUTION: Running units 22a, 22b of a runner 21 which can travel along a slit-like opening of a rail 1 include: shaft members 23a, 23b which can be slidably disposed at the slit-like opening and a rotary member which is fitted to the shaft member at prescribed intervals in an axial direction, is in contact with inclined planes 5a, 6a of travel walls 5, 6 extending inward at different height positions from the inner wall parts 3, 4 opposite to the rail 1 and can freely rotate in a peripheral direction of the shaft members 23a, 23b. The shaft members 23a, 23b of a plurality of running units are fitted to a mounting member 28 at a prescribed interval in the traveling direction of the runner 21.SELECTED DRAWING: Figure 4COPYRIGHT: (C)2018,JPO&INPIT【課題】荷重が作用しても円滑に走行可能なランナー、及びこのランナーを備えたセットを提供する。【解決手段】レール1のスリット状開口部に沿って走行可能なランナー21の走行ユニット22a,22bは、前記スリット状開口部にスライド自在に配設可能な軸部材23a,23bと、この軸部材に、軸方向に所定間隔をおいて取り付けられ、レール1の対向する内壁部3,4から、高さ位置を異にして内方に延出する走行壁5,6の傾斜面5a,6aと接触して、前記軸部材23a,23bの周方向に回転自在な回転部材とを備えており;複数の前記走行ユニットの軸部材23a,23bが、ランナー21の走行方向に所定間隔をおいて取付部材28に取り付けられている。【選択図】図4