Patent ID: 11903339
Assignee: nan
Field: Other special machines (Mechanical engineering)
Classification: CPC A | IPC A

Claim 14:
15. A cutting head device for a flexible trimmer line mowing machine comprising:
head enclosure means for enclosing internal components of said cutting head device, said head enclosure means having an upper body, a lower cover and coupling means, said head enclosure means upper body being releasably coupled to said head enclosure means lower cover for gaining access to the interior of said head enclosure means;
spool means for storing a flexible trimmer line, rotationally disposed within aid head enclosure means around an axis of rotation, constrained from axial movement relative to said head enclosure means urged by spring means;
ground bumping means for controlled release of segments of said flexible trimmer line, protruding from a central opening of said head enclosure means lower cover, wherein said ground bumping means are rotationally engaged to said spool means for locking said spool means against relative rotation to said head enclosure means when said ground bumping means is in an extended position urged by said spring means and for permitting a first predetermined rotational increment of said spool means relative to said head enclosure means as said ground bumping means is moved from said extended position to a retracted position and a second predetermined rotational increment of said spool means rotation relative to said head enclosure means as said ground bumping means is moved from said retracted position back to said extended position; and
cooperatively interengagable rotation control means disposed onto said head enclosure means lower cover and onto said ground bumping means for controlled rotation of said spool means.