US 11,883,938 B2
Handheld setting tool
Arno Mecklenburg, Berlin (DE)
Assigned to RHEFOR GbR, Berlin (DE)
Appl. No. 17/619,714
Filed by RHEFOR GbR, Berlin (DE)
PCT Filed Feb. 6, 2020, PCT No. PCT/EP2020/053023
§ 371(c)(1), (2) Date Dec. 16, 2021,
PCT Pub. No. WO2020/259870, PCT Pub. Date Dec. 30, 2020.
Claims priority of application No. 10 2019 004 422.3 (DE), filed on Jun. 26, 2019; application No. 10 2019 005 599.3 (DE), filed on Aug. 8, 2019; application No. 10 2019 005 792.9 (DE), filed on Aug. 20, 2019; and application No. 10 2019 006 714.2 (DE), filed on Sep. 25, 2019.
Prior Publication US 2022/0355451 A1, Nov. 10, 2022
Int. Cl. B25C 1/06 (2006.01); B25C 1/04 (2006.01)
CPC B25C 1/047 (2013.01) [B25C 1/06 (2013.01)] 17 Claims
OG exemplary drawing
 
1. Handheld setting tool for driving a nail or bolt into a substrate, comprising:
a drive, driving an actuator (11) which serves to drive the nail or bolt into the substrate;
a decoupling device which at least partially decouples a first movement process of a first moving part or piston (111) in the actuator (11), driven by the drive, from a second movement process of a second moving part or piston (112) in the actuator (11) for driving the nail or bolt,
the drive being a first electrodynamic drive or a second electrodynamic drive,
wherein the first electrodynamic drive comprises: a first excitation coil; a soft magnetic frame, and a squirrel cage rotor or squirrel cage winding movably mounted along an axis formed in a movable element that effects the movement process of the first moving part or piston (111) in the actuator (11), the soft magnetic frame having a saturation flux density of at least 1.0 T and/or an effective specific electrical conductivity of at most 10 6 S/m,
wherein the second electromagnetic drive comprises: at least a first coil (711) and a second coil (721), the first coil (711) being formed on and/or in a flux concentrator (710) and the second coil (721) being a moving coil formed in or on a movable element (720) which effects the movement process of the first moving part or piston (111) in the actuator (11).