초록 ▼

A sled structure including a body supporting portion, a head supporting portion and a towing portion; the body supporting portion and the head supporting portion together forming a substantially flat flexible sheet-like structure, the body supporting portion being of a generally elongated configurat

A sled structure including a body supporting portion, a head supporting portion and a towing portion; the body supporting portion and the head supporting portion together forming a substantially flat flexible sheet-like structure, the body supporting portion being of a generally elongated configuration, the body supporting portion including a main section with peripheral side sections and an end section, the side and end sections being foldable with respect to the main section, a plurality of fasteners disposed in the side and end sections, the head supporting portion extending from one end of the body supporting portion, spaced first and second tubular passages extending from one edge of the sled structure to the other, continuous cord extending from a fastener adjacent one corner of the end section to a fastener located in the side section remote from the corner and thereafter to a fastener disposed in the other side section and back and forth between fasteners in the side sections in a zigzag pattern to the first tubular passage and therethrough to the opposite edge of the sled structure and then through the second tubular passage, the cord forming a loop portion and returning through the second tubular passage and the first tubular passage in directions opposite to its initial path therethrough and thereafter between the fasteners in the side sections in a zigzag pattern disposed from the initial zigzag pattern to a fastener located in the end section adjacent to another corner thereof.

대표청구항 ▼

A sled structure including a body supporting portion, a head supporting portion and a towing portion; said body supporting portion and said head supporting portion together forming a substantially flat flexible sheet-like structure, said body supporting portion being of a generally elongated configu

A sled structure including a body supporting portion, a head supporting portion and a towing portion; said body supporting portion and said head supporting portion together forming a substantially flat flexible sheet-like structure, said body supporting portion being of a generally elongated configuration, said body supporting portion including a main section with peripheral side sections and an end section, said side and end sections being foldable with respect to said main section, a plurality of fastening means disposed in said side and end sections, said head supporting portion extending from one end of said body supporting portion, a tubular passage extending from one edge of said sled structure to the other adjacent the juncture of said body supporting portion and said head supporting portion, a second tubular passage adjacent the free end of said head supporting portion, said second tubular passage being spaced from and substantially parallel to said first tubular passage, continuous cord means extending from fastening means adjacent one corner of said end section to fastening means located in the side section remote from said corner and thereafter to fastening means disposed in the other side section and back and forth between fastening means in said sections in a zigzag pattern to said first tubular passage and therethrough to the opposite edge of said sled structure and then through said second tubular passage, said cord means forming a loop portion and returning through said second tubular passage and said first tubular passage in directions opposite to its initial path therethrough and thereafter between said fastening means in said side sections in a zigzag pattern disposed from said initial zigzag pattern to fastening means located in said end section adjacent to another corner thereof.