US 12,343,839 B2
Knife sharpening device with 1-point bearing
Harald Stallegger, Pöndorf (AT)
Filed by Harald Stallegger, Pöndorf (AT)
Filed on Mar. 31, 2022, as Appl. No. 17/709,872.
Claims priority of application No. 10 2021 001 726.9 (DE), filed on Apr. 1, 2021.
Prior Publication US 2022/0314389 A1, Oct. 6, 2022
Int. Cl. B24B 3/54 (2006.01)
CPC B24B 3/54 (2013.01) 27 Claims
OG exemplary drawing
 
1. A knife sharpening device comprising:
at least two sharpening rods (24; 25), which are pivotably mounted on a base (2) and which are arranged in a V-shape relative to one another, wherein the V-shaped arrangement of the sharpening rods (24; 25) relative to one another serves for the insertion of a knife;
wherein the sharpening rods (24; 25) each have at least one sharpening insert (30), the sharpening rods (24; 25) are held in their V-shaped arrangement at a predetermined distance from one another in a rest position (19) by the force of a respective associated spring (29); the sharpening rods (24; 25) in a sharpening position (1) with insertion of the knife into the V-shaped arrangement of the sharpening rods (24; 25), can be spread apart against the force of the respective associated spring (29) upon contact of the knife with the sharpening inserts (30); and
wherein a single holding point (42) is provided, via which the sharpening rods (24; 25) are held on the base (2), and
wherein below the single holding point (42), each of the sharpening rods has an end (47, 48) (42) facing to a bottom end of the base (2), and the respective associated spring (29) connects each end (47, 48) of the sharpening rods (24, 25) to an inner wall surface (12) of a housing (4) of the base (2) below the single holding point (42).