Spool for straight through line feed vegetation trimmer apparatus with modules and spokes

A trimmer head for mounting to a trimmer machine, the trimmer head comprising:

• a trimmer head housing;
• a spool mounted to rotate about a central axis of rotation within the trimmer head housing, said spool comprising:
• a cylindrical core about the central axis;
• a top flange defining a top surface and a bottom flange defining a bottom surface,
• at least one chamber defined between the top flange and the bottom flange for winding trimmer line threaded through said spool and around the core of the spool, and
• one or more walls extending from the top surface of the top flange of the spool and at least partially defining a central cavity at the top surface of the spool;
• a removable module engageable within the central cavity;
• a trimmer line feed channel defined at least partially in the top flange and at least partially in the removable module for routing trimmer line through the spool;
• said trimmer head housing having a pair of eyelets for receiving ends of the trimmer line therethrough from said feed channel to an area outside the trimmer head housing;
• an activation bump knob slidably connected to said trimmer head housing for moving said spool from a first axial position relative to said trimmer head housing to a second axial position relative to said trimmer head housing;
• at least two teeth protruding from a top edge of the one or more walls extending from the top flange and configured to interact with two or more stop bars in the trimmer head housing to provide trimmer line feed control;
• said trimmer head housing having a ratchet mechanism comprised of at least four ramps in a bottom portion of the trimmer head housing and at least four ramps on the bump knob that moveably engage the at least four ramps in the bottom portion of the trimmer head housing, wherein the ramps of the bump knob are moveable between a winding mode and a trimmer line dispensing mode such that when the spool is in the first axial position, the trimmer line is windable onto the spool in a winding direction and the ratchet mechanism prevents the spool from rotating in a direction opposite to the winding direction, and when the spool is in the second axial position, the ratchet mechanism permits the spool to rotate in a clockwise direction or a counterclockwise direction and a length of trimmer line is dispensed out through the pair of eyelets.