| 摘要 |
PROBLEM TO BE SOLVED: To provide a rail device capable of fitting a narrow rail member neatly and simply on an upper frame material having a wide recessed groove formed to suit a wide rail member.SOLUTION: A rail device 1 is fitted on an upper frame material 2 having a recessed groove 3 formed for fitting a wide rail member 6 so as to be embedded therein, and includes a narrow rail member 10 having a dimension W2 in a direction along a groove width of the recessed groove that is smaller than the wide rail member, and a spacer 20 disposed to close a portion between the narrow rail member and an inner surface 3b of the recessed groove. The spacer is disposed at least along an opening side portion of the inner surface of the recessed groove, and includes a fixed piece part 21 of which an upper edge 23a is in contact with a groove bottom surface 3a of the recessed groove, and a closing piece part 24 protruded from a bottom edge of the fixed piece part in the direction along the groove width, to be in contact with a bottom edge part of the narrow rail member.SELECTED DRAWING: Figure 1 |
