US 12,281,437 B2
Method for fabricating a string, in particular a string for a bowed musical instrument, and an apparatus for carrying out the same
Kristian Bach Sigvardt, Copenhagen (DK); and Laurits Thorvald Larsen, Sonderborg (DK)
Assigned to Larsen Strings A/S, Sønderborg (DK)
Appl. No. 16/967,479
Filed by Larsen Strings A/S, Sønderborg (DK)
PCT Filed Feb. 9, 2018, PCT No. PCT/EP2018/053249
§ 371(c)(1), (2) Date Aug. 5, 2020,
PCT Pub. No. WO2019/154505, PCT Pub. Date Aug. 15, 2019.
Prior Publication US 2021/0214891 A1, Jul. 15, 2021
Int. Cl. D07B 1/04 (2006.01); D07B 3/00 (2006.01); G10D 3/10 (2006.01)
CPC D07B 1/04 (2013.01) [D07B 3/00 (2013.01); G10D 3/10 (2013.01); D07B 2201/102 (2013.01); D07B 2207/4031 (2013.01); D07B 2501/40 (2013.01)] 27 Claims
OG exemplary drawing
 
1. Method for fabricating a string having a cylindrical core with at least one winding strand helically wound thereon, the method comprising:
placing a cylindrical core axially along a path,
spinning the cylindrical core about its central axis and helically winding at least one winding strand around the cylindrical core at a spinning point, the spinning point being a point of first contact between the cylindrical core and the at least one winding strand,
applying at the spinning point both a friction force and a compression force to the at least one winding strand by a compactness increasing module, while helically winding the at least one winding strand around the cylindrical core, wherein during spinning the compactness increasing module is moved, such that the compactness increasing module follows the spinning point.