US 11,772,210 B2
Tool for inserting a fastener into a structure by interference and installation method for installing a fastener in a structure by interference using such a tool
Martial Broucke, Delincourt (FR); and Aurélien Montier, Villennes sur Seine (FR)
Assigned to LISI AEROSPACE, Paris (FR)
Filed by LISI AEROSPACE, Paris (FR)
Filed on Apr. 11, 2022, as Appl. No. 17/717,149.
Application 17/717,149 is a continuation in part of application No. PCT/EP2020/079513, filed on Oct. 20, 2020.
Claims priority of application No. 1911990 (FR), filed on Oct. 25, 2019.
Prior Publication US 2022/0234149 A1, Jul. 28, 2022
Int. Cl. B23P 11/02 (2006.01); B23P 19/04 (2006.01); B21J 15/32 (2006.01); B23F 19/04 (2006.01)
CPC B23P 11/02 (2013.01) [B23F 19/04 (2013.01); B21J 15/32 (2013.01)] 16 Claims
OG exemplary drawing
 
1. Method for interference insertion of a fastener in a bore of at least one structure, said fastener extending along a longitudinal axis and comprising; a sleeve, said sleeve comprising a flange; a head housed in the sleeve flange and a gripping element, said insertion method being characterized in that it comprises the following steps:
supply of a tool comprising a load application surface, said load application surface being adapted to receive a percussive or continuous load,
said tool comprising a first body extending along a first main axis and having:
at least one load-bearing surface;
a load transmission surface; and
a housing extending along the first main axis from a first end of said first body, said housing being extended along the first main axis by a bore extending from said housing to a second end of said first body;
the load transmission surface being arranged at the second end of the first body and extending perpendicular to the first main axis, said load transmission surface being dimensioned so as to be able to bear simultaneously on the fastener head and the sleeve flange;
placing the fastener in the first body, along the main axis of said first body, so as to bring the head of the fastener and the sleeve flange into contact with the load transmission surface;
positioning the tool and the fastener facing the bore of the structure;
applying a percussive or continuous load to the load application surface of said tool to interference fit the fastener into the bore of the structure.