Tensioner has a strut with spacers which move in the longitudinal direction of the strong in a groove and work in a semicircular shape opposite the strut are right angled grooves

摘要

The tensioner has a strut (1) with spacers (5-8) which move in the longitudinal direction of the strong in a groove (2) and work in a semicircular shape. Opposite the strut are right angled grooves (4,4',4'',4''') with inserts (3,3',3'',3''') which lie deep in the string material and have a thin breaking edge (9) and a wedge shape.