Patent ID: 9456666
Filing Date: 2016-10-04
CPC Classification: A44B,A61F,A63B,F21V,G02C,Y10T

Claim Text:
1. An adjustment device for a portable element comprising: a first pair of wire-shaped elements with a first and a second wire-shaped element; a second pair of wire-shaped elements with a first and a second wire-shaped element; a first adjustment unit mounted mobile on the first pair of wire-shaped elements and configured to: a second adjustment unit mounted mobile on the first pair of wire-shaped elements and configured to: the first wire-shaped element of the first pair of wire-shaped elements passes through the first adjustment unit from a first side of the first adjustment unit to an opposite second side of the first adjustment unit, the second wire-shaped element of the second pair of wire-shaped elements passes through the first adjustment unit from the first side of the first adjustment unit to the opposite second side of the first adjustment unit, wherein at least one of the first pair and the second pair of the wire-shaped elements forms a continuous loop, and the first distance X