US 12,403,578 B2
Tool with protruding structure
Norbert Tajthi, Abony (HU); Bertalan Kecskés, Helvécia (HU); Zoltán Attila Papp, Kecsekmét (HU); and Tamás Kotálik, Szabadszállás (HU)
Assigned to HILTI AKTIENGESELLSCHAFT, Schaan (LI)
Appl. No. 18/014,648
Filed by HILTI AKTIENGESELLSCHAFT, Schaan (LI)
PCT Filed Jul. 7, 2021, PCT No. PCT/EP2021/068764
§ 371(c)(1), (2) Date Jan. 5, 2023,
PCT Pub. No. WO2022/013026, PCT Pub. Date Jan. 20, 2022.
Claims priority of application No. 20186368 (EP), filed on Jul. 17, 2020.
Prior Publication US 2023/0356378 A1, Nov. 9, 2023
Int. Cl. B25D 17/02 (2006.01); C21D 1/18 (2006.01); C21D 1/42 (2006.01)
CPC B25D 17/02 (2013.01) [C21D 1/18 (2013.01); C21D 1/42 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A tool for a power tool, the tool having a longitudinal axis (L) and comprising a working section and a shaft with a connection end for connecting the tool to a tool holder of the power tool, wherein the shaft comprises at least one protruding structure protruding from the shaft the shaft having a surface and two halves (A, B) wherein at least within one of two halves (A, B) of the protruding structure which are separated from each other by a plane perpendicular to the longitudinal axis (L), the surface of the protruding structure has a finite gradient along a direction parallel to the longitudinal axis (L), and within the half A the surface of the protruding structure comprises several sections with different radii of curvature, wherein an angle (alpha) between a tangent through a point (P) of the surface of the protruding structure and the longitudinal axis (L) is an acute angle less than 90° in relation to the longitudinal axis (L).