Scaffold plank
OwnerShigeharu Kurodainventor
Life of this patent
Estimating the term…
Abstract
A scaffold plank comprising a layer or layers of covering member wrapping a plurality of hollow, lightweight elongated members rectangular in cross section and arranged in side-by-side contact to provide at each end a plurality of transversely aligned opening mouths into which a corresponding number of inwardly projecting plug portions of a transverse end member are matingly fit, whereby plank ends are protected from deformation, damage, and incoming of mud or water. The plurality of elongated members may be replaced by a single piece of partitioned tubular member which is a rectangular in cross section and has two or more opening mouths formed respectively at opposite end thereof.
Claims20
A scaffold plank which comprises
- a plurality of hollow elongated members arranged in side-by-side contact relationship to one another to provide a plurality of transversely aligned, opening mouths respectively at opposite ends of said plurality of hollow elongated members,
- each of said hollow elongated members being substantially rectangular in cross section,
- each of said hollow elongated members including a pair of opposed vertical side walls,
- at least one layer of covering member enclosing said plurality of hollow elongated members,
- a pair of end members serving as connectors mounted to said opposite ends of said plurality of hollow elongated members for maintaining said hollow elongated members in side-by-side contact relationship,
- each of said pair of end members including a plurality of plug portions which are transversely aligned in spaced-apart relation and inwardly project into mating engagement with said plurality of transversely aligned opening mouths, and
- each of said pair of end members further including inner engaging walls which are in abutment with end walls of said plurality of hollow elongated members.
A scaffold plank which comprises
- a single piece of hollow elongated member which is substantially rectangular in cross section;
- said hollow elongated member is formed with at least one reinforcing partition to provide at least two transversely aligned opening mouths respectively at opposite ends thereof,
- at least one layer of covering member enclosing said hollow elongated member,
- a pair of end members mounted to said opposite ends of said hollow elongated member,
- each of said pair of end members including at least two plug portions which are transversely aligned in spaced-apart relation and inwardly project into mating engagement with said at least two transversely aligned opening mouths,
- each of said pair of end members further including inner engaging walls which are in abutment with end walls of said hollow elongated member,
- a pair of reinforcing members, each of which is interposed between said end member and said hollow elongated member,
- each of said pair of reinforcing members having at least two plug receiving sections which are transversely aligned in spaced-apart relation and inwardly protrude into fitting engagement with said at least two opening mouths of said hollow elongated member,
- each of said plug-receiving sections having an internal space into which one of said plug portions of the end member is fittingly received, and
- each of said pair of reinforcing members further having inner engaging walls which are in abutment with said end walls of said elongated tubular member.
Dependencies are inferred from the claim text.