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US 4,890,804 AGranted
Turnout unit for railway track
AssigneesNippon Sharyo Seizo Kabushiki Kaisha, Kanto Bunkiki Kabushiki Kaisha
InventorsTomihiko Teramoto, Hidehiko Ono, Sadanobu Ito, Kiyoshi Nishino
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Abstract
Disclosed is an improved turnout unit to be employed in turnout point of railway tracks, which does not necessitate maintenance of the sliding surface of the base plate. In the turnout unit of the present invention, a spray-coated ceramic layer is formed on the base plate and the tongue rail slides on the ceramic layer.
Claims9
A turnout unit, comprising:
- a base plate;
- a stock rail fixed on said base plate;
- a spray-coated ceramic layer formed on said base plate;
- a tongue rail slidably mounted on said ceramic layer, said tongue rail sliding on said ceramic layer;
- a bonding coat layer interposed between said base plate and said spray-coated ceramic layer, said bonding coat layer being made of a metal,
- wherein said base plate includes a recessed portion with substantially non-recessed portions existing between said stock rail and said recessed portion and along longitudinal edges of said base plate, said bonding coat layer being formed on said recessed portion and said non-recessed portions, and
- further wherein said spray-coated ceramic layer is formed on a portion of said bonding coat layer formed on said recessed portion such that an upper surface of said ceramic layer is made substantially flush with an upper surface of said bonding coat layer formed on the non-recessed portions of said base plate.
4 more elements
Dependencies are inferred from the claim text.