US 11,833,649 B2
Hand tool
Jan Schleiminger, Solingen (DE); and Tim Liedtke, Solingen (DE)
Assigned to Knipex-Werk C. Gustav Putsch KG, Wuppertal (DE)
Appl. No. 17/050,208
Filed by KNIPEX-Werk C. Gustav Putsch KG, Wuppertal (DE)
PCT Filed Apr. 25, 2019, PCT No. PCT/EP2019/060599
§ 371(c)(1), (2) Date Oct. 23, 2020,
PCT Pub. No. WO2019/207035, PCT Pub. Date Oct. 31, 2019.
Claims priority of application No. 10 2018 110 108.2 (DE), filed on Apr. 26, 2018.
Prior Publication US 2021/0094152 A1, Apr. 1, 2021
Int. Cl. B25B 7/06 (2006.01); B25B 7/08 (2006.01); B26B 17/00 (2006.01); B25B 7/02 (2006.01); B25B 7/22 (2006.01)
CPC B25B 7/06 (2013.01) [B25B 7/08 (2013.01); B26B 17/00 (2013.01); B25B 7/02 (2013.01); B25B 7/22 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A hand tool in the form of pliers having a first tool leg and a second tool leg rotatably connected to the first tool leg in a pivot region of the first tool leg and the second tool leg, each tool leg comprising a handle section and a jaw region integrated with the handle section forming a single piece, wherein the jaw regions have a cutting region formed near the pivot region,
wherein said cutting region has a first cutting edge on the first tool leg and a second cutting edge on the second tool leg,
wherein the tool legs interact with a spring that predefines a basic open position of the hand tool,
wherein the tool legs are pivotable beyond the basic open position into an expanded open position by application of a manual force against a force of the spring,
wherein the spring, which comes into effect during an additional pivoting motion of the tool legs beyond the basic open position and during a closing pivoting motion of the tool legs, acts upon different bearing surfaces of the tool legs,
wherein the spring is provided in a groove in the handle sections of the tool legs, in an overlapping region of the tool legs near a pivot pin, wherein the groove is in form of a substantially pocket-like depression that starts at a sliding surface of the first tool leg and opens into a sliding surface of the second tool leg, the groove extending along the sliding surfaces of both tool legs substantially in a direction of a longitudinal spring axis.