WARM AIR TYPE SNOWMELT DEVICE INSULATED DUCT AND WARM AIR TYPE SNOWMELT DEVICE

To provide a warm air type snowmelt device insulated duct capable of further widening a snowmelt area in a delta area of a railroad switch for a railway line, and a warm air type snowmelt device.SOLUTION: There is provided a warm air type snowmelt device insulated duct 1 laid between rails 50 in a railroad switch for a railway line for blowing out warm air provided to the inside toward each rail 50 from a plurality of holes 3 provided on the side, in which the warm air type snowmelt device insulated duct 1 comprises two cover members 2A, 2B configured from an insulated material and having U-shaped cross-sections, a duct is formed by inserting one cover member 2A into the other cover member 2B face to face, a plurality of holes 3 for blowing out warm air is formed on the side of the duct, and a width W in a short direction of the duct is variable along a longitudinal direction of the duct by changing an insertion amount L of the one cover member 2A into the other cover member 2B in the longitudinal direction of the duct.SELECTED DRAWING: Figure 1 【課題】鉄道線路の分岐器のデルタエリアにおける融雪面積をより広くすることが可能な温風式融雪装置用絶縁ダクト及び温風式融雪装置を提供する。【解決手段】鉄道線路の分岐器におけるレール５０間に敷設され、内部に供給された温風を、側面に設けられた複数の孔３からそれぞれ各レール５０に向けて吹き出すための温風式融雪装置用絶縁ダクト１において、絶縁性材料で構成された断面コ字状の２つのカバー部材２Ａ、２Ｂを有し、一方のカバー部材２Ａを他方のカバー部材２Ｂに向い合せて挿入することでダクトを形成するとともに、ダクトの側面には、温風を吹き出すための複数の孔３が形成されており、他方のカバー部材２Ｂに対する一方のカバー部材２Ａの挿入量Ｌをダクトの長手方向で変えることで、ダクトの短手方向の幅Ｗが、ダクトの長手方向に沿って可変とされている。【選択図】図１