发明名称 Treppenleiter, insbesondere Bootstreppe
摘要 A ladder is provided which is especially adapted for shipboard use and which is safe and comfortable to use, of relatively light weight and occupying relatively small floor and overhead space. The ladder comprises a single stringer disposed between upper and lower deck or floor levels at a predetermined angle of inclination, and having an array of half treads on each side of the stringer, each array being vertically spaced from the other along the length of the stringer. The half treads are affixed to and extend from the respective sides of the stringer and each include an integral outwardly extending portion which terminates in a plane forward of a plane passing through the front edges of the treads. Handrails are disposed in this forward plane and are affixed to and supported by the outwardly extending tread portions.
申请公布号 DE3000698(C3) 申请公布日期 1994.04.14
申请号 DE19803000698 申请日期 1980.01.10
申请人 THE LAITRAM CORP., HARAHAN, LA., US 发明人 LAPEYRE, JAMES M., NEW ORLEANS, LA., US
分类号 E06C9/02;B63B29/20;E04F11/02;E04F11/025;E06C1/38;E06C7/08;E06C7/18 主分类号 E06C9/02
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