A device for tensioning pre-strung but untensioned strings in sports rackets

摘要

Tensioning machines and tensioning techniques for sports rackets. A device consisting of a modified and rotating traction lever mechanism (4) with a built-in tensiometer (3) and string attachment point above the string bed, modified string clamps that are clamped against the racket head (8), modified racket fixing mechanism (2) that only allows clamping to be done from the outside and a modified round string clamp to make it easier to get started. All the work is done from above the string bed, which makes it more comfortable to use. Both new and old tensioning techniques can be used.IMAGE