New system for holding and tightening screws, comprising a screw head with a mortise hole (1) which is bevelled in the screw axis and is provided with a plurality of lugs (2) and corresponding circular sections (3), a tip (4) of a screw-driver or tightening tool with a plurality of wings (5) corresponding to the number of lugs and a tooling set intended to obtain said mortise (1) in the screw head and said tip (4) of screw-driver or tightening tool.
申请公布号
WO9947821(A1)
申请公布日期
1999.09.23
申请号
WO1999ES00062
申请日期
1999.03.15
申请人
CASINO Y MARIN CASMAR, S.L.;CASINO LORITE, FRANCISCO;CASINO SANTISO, FRANCISCO;MARIN SANCHEZ, LUIS
发明人
CASINO LORITE, FRANCISCO;CASINO SANTISO, FRANCISCO;MARIN SANCHEZ, LUIS