PROBLEM TO BE SOLVED: To provide a rail device for working cart in a greenhouse which can hold rail securely, enables a working cart to run stably, has a simple structure, and is easy to lay and remove.SOLUTION: Parallel 2 tubular rails 2 of a rail device 1 comprises a plurality of rail members 3 consisting of a specified length of a steel pipe material, joint metal fittings 4 for connecting between the rail members 3, slope metal fittings 5 installed on the front end side of front end rail members 3a, band pedestals 6 which receive the extension portion of the rail members 3a and fixed to the ground E, and a plurality of joint pedestals 6 fixed between the two rails 2 on the ground E so as to receive the interconnecting portion of each of the rail members 3. The slope metal fittings 5 comprises a pair of left and right grounding pieces 5a, slope portions 5b connecting the ground pieces 5a in an arch shape, and a pair of left and right fitting pieces 5c to be fitted into the front end portion of the front end rail members 3a.SELECTED DRAWING: Figure 1【課題】レールを確実に保持し、作業台車を安定して走行させることができ、構造簡易で、敷設、撤去作業が容易な温室内作業台車用レール装置を提供する。【解決手段】レール装置１の平行２条の管状レール２は、定尺の鋼管材からなる複数のレール部材３と、レール部材３間を連結するジョイント金具４と、前端レール部材３ａの前端側に設置されるスロープ金具５と、当該レール部材３ａの延長途上を載せ受けて地面Ｅに固定されるバンド台座６と、各レール部材３の相互連結部を載せ受けるように２条のレール２間に渡って地面Ｅに固定される複数のジョイント台座６とを具備する。スロープ金具５は、左右一対の接地片５ａと、接地片５ａ間をアーチ状に連結するスロープ部５ｂと、前端レール部材３ａの前端部内に嵌合される左右一対の嵌合片５ｃとを具備する。【選択図】図１
