Patent ID: 8887763
Filing Date: 2014-11-18
Classification: B66C,E04G,Y10T

Abstract:
1. An arm made of composite material, comprising: a plurality of articulated segments with a longitudinal main axis (x), pivoted to each other, each of said articulated segments comprising a tubular structure and at least a joint element attached thereto by gluing, wherein the tubular structure has a main body portion and a first end which has a flared portion, wherein the joint element has a second end which is hollow and has a tapered portion, wherein the joint element comprises an extended joint portion extending from the tapered portion, the tapered portion tapering away from the extended joint portion, the extended joint portion comprising substantially parallel sidewalls and a third end opposed to the second end, wherein the substantially parallel side walls are substantially parallel to the longitudinal main axis (x), said tubular structure first end cooperating with the second end of the joint element on an inside surface of the joint element, wherein said first and second ends define a substantially conical reciprocally overlapping coupling area and have profiles concordantly inclined by an angle (α) with respect to the longitudinal axis (x), wherein the flared portion is within the tapered portion at the conical coupling area, and wherein the outer surface of the flared portion is glued to the inner surface of the tapered end at the conical coupling area.