Mountable strap type hinge without rigid articulation axis

Claim 1

An improved hinge without rigid articulation axis of the type comprising: (a) first and a second double part jaws, said first jaw having a first inner end, a first outer end, a first portion including an inner and an outer segment and a second portion including an inner and an outer segment, said first jaw including a first groove formed in at least one of said first and second portions, said first portion having at least one first curved member projecting perpendicular from said first portion at the inner segment thereof, said first curved member extending substantially along and spaced from said inner segment of said second portion and including a free end, said first jaw to be secured to a first element extending outwardly from said first outer end in a latitudinal plane therewith, said second jaw having a second inner end, a second outer end, a third portion including an inner and an outer segment and a fourth portion including an inner and an outer segment, said second jaw including a second groove in at least one of said third and fourth portions, said third portion having at least one second curved member projecting perpendicular from said third portion at said inner segment thereof, said second curve member extending substantially along and spaced from said inner segment of said fourth portion and including a second free end, said second jaw to be secured to a second element extending outwardly from said first outer end in a latitudinal plane therewith, said second curved member being in alternating arrangement with said first curved member, said first and second jaws being hingedly connected to each other at said inner ends thereof; (b) connection means for connecting said jaws, including a supple strap having first and second cylindric selvedges and a central band including a longitudinal rotational center line along said central band, said first selvedge cooperatively engaging said first groove and said second selvedge cooperatively engaging said second groove, engagement of said selvedges making said supple strap integral with said first and second elements, said central band having a minimum width to permit free rotation of said first and second elements relative to each other, said first and second jaws being hingedly connected by said strap so that in a first position said first and second curved members are in substantially lateral alignment with each other and in a second position said first and second curved members are in substantially longitudinal alignment with said first and second free ends directed to the central area of the strap and resting thereon, thereby forming a single folding which coincides wth said longitudinal rotational center line of said central band; and (c) means for producing a folding area along said central line of said central band, said means acting upon said central band, said means for providing said folding area including said first and second curved members.