초록 ▼

A base (17a) of a flat end engaging member (17) which protrudes from a hole (19) is fixed on an outside surface of a flange (15) installed at each end of a winding drum (14) in such a manner that the end engaging member (17) is fitted in a groove (16) provided at least at one point of an inside surf

A base (17a) of a flat end engaging member (17) which protrudes from a hole (19) is fixed on an outside surface of a flange (15) installed at each end of a winding drum (14) in such a manner that the end engaging member (17) is fitted in a groove (16) provided at least at one point of an inside surface of the flange (15). A guide portion (18) is continuously provided on an upper side of the groove (16). The guide portion (18) is an inclined surface extending obliquely upward from each corner of the groove (16) to an outer peripheral edge of the flange (15). An engaging fragment (17b) which is bent toward a guide portion (18) side is provided in a tip portion of the end engaging member (17). Furthermore, the guide portion (18) and the engaging fragment 17b are provided with engaging portions (20) and (21) comprising recesses which are concaved in the same direction, respectively.

대표청구항 ▼

[ What is claimed is:] [1.] A metal wire winding reel comprising a winding drum and a flange at each end of a winding drum and a groove provided in a radial direction to an outer peripheral edge of the flange on an inside surface of the flange and a flat end engaging member installed in the groove,

[ What is claimed is:] [1.] A metal wire winding reel comprising a winding drum and a flange at each end of a winding drum and a groove provided in a radial direction to an outer peripheral edge of the flange on an inside surface of the flange and a flat end engaging member installed in the groove, characterized in that said groove includes a bottom slot, a base of the flat end engaging member extends through the groove bottom slot and protrudes from an outside surface of the flange through the inside surface of the flange and is fixed on the outside surface of the flange, and an engaging portion including a hemispherical projection provided on the inside surface of the flange in the proximity of the groove.