US 11,813,726 B2
Setting tool
Tilo Dittrich, Feldkirch (AT); Chafic Abu Antoun, Buchs (CH); and Thomas Sperrfechter, Grüsch (CH)
Assigned to Hilti Aktiengesellschaft, Schaan (LI)
Appl. No. 15/734,084
Filed by HILTI AKTIENGESELLSCHAFT, Schaan (LI)
PCT Filed May 29, 2019, PCT No. PCT/EP2019/063924
§ 371(c)(1), (2) Date Dec. 1, 2020,
PCT Pub. No. WO2019/233843, PCT Pub. Date Dec. 12, 2019.
Claims priority of application No. 18176197 (EP), filed on Jun. 6, 2018.
Prior Publication US 2021/0220981 A1, Jul. 22, 2021
Int. Cl. B25C 1/06 (2006.01); B25C 1/00 (2006.01)
CPC B25C 1/06 (2013.01) [B25C 1/008 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A setting tool for driving fastening elements into a substrate, comprising a holder for holding a fastening element; a drive-in element for transferring a fastening element held in the holder into the substrate along a setting axis; a drive for driving the drive-in element toward the fastening element along the setting axis, wherein the drive comprises an electrical capacitor, an excitation coil, and an element arranged on the drive-in element and configured to provide a circulating current upon induction by an excitation magnetic field to create a force that repels the element from the excitation coil wherein, during rapid discharge of the electrical capacitor, current flows through the excitation coil and generates a magnetic field that accelerates the drive-in element toward the fastening element; the setting tool further comprising a control unit configured to control an amount of energy of the current flowing through the excitation coil during the rapid discharge of the electrical capacitor.