Line Trimmer Head with Residual Line Display Function

A line trimmer head for mounting on a drive shaft 3 of a free trimmer 1 has a housing 4 and a trimmer line spool 5 for winding and unwinding a trimmer line 6. The trimmer line spool 5 is rotatably supported in the housing 4 about an axis of rotation 7. The trimmer line spool 5 has a first rotational direction 8 in relation to the housing 4 and a second rotational direction 9 in relation to the housing 8, wherein the second rotational direction 9 is opposite to the first rotational direction 8. The line trimmer head comprises a counting device that detects a residual trimmer line length. The counting device 10 is connected to the trimmer line spool 5 such that the counting device 10 counts up when the trimmer line spool 5 rotates in relation to the housing 4 in the first rotational direction 8 and counts down when the trimmer line spool 5 rotates in relation to the housing in the second rotational direction. 本发明涉及一种用于安装在自由切割机（1）的驱动轴（3）上的线收割头。所述线收割头（2）包括壳体（4）和用于将切割线（6）卷起并且退卷的线卷轴（5）。所述线卷轴（5）以相对于所述壳体（4）能够围绕着旋转轴线（