Patent ID: 8869372
Filing Date: 2014-10-28
Classification: B21J,B25B,F16B,Y10T

Abstract:
1. A reusable temporary fastening device for preassembling at least two structural members previously formed with coaxial bores for receiving said device, which comprises: a cylindrical hollow body extending along an elongation axis, a bearing ring provided at a proximal end of the hollow body and against which one of the structural members is intended to bear in a fastening position of the device, a reusable pulling threaded rod extending through the hollow body and coaxial thereto, and to be inserted into the respective coaxial bores of the structural members to be attached, a tightening means connected to the pulling threaded rod, for maintaining the structural members against each other, wherein the tightening means includes at least one removable tubular end piece adapted to be mounted on a proximal threaded end of the pulling rod, and is configured to be locally axially compacted as a result of pivoting of said pulling rod in order to form a radial bead for sandwiching the structural members between the radial bead and the bearing ring, wherein, the device comprises a sheath having a first end portion internal to the hollow body and a second end portion having a bearing ledge on which the tubular end piece bears and wherein at least one of a portion of the tubular end piece and a portion of the sheath extends inside a portion of the other, and enabling the formation of the radial bead at a distance from the structural members.