Combination blower, edger and trimmer and method for tending vegetation

  • US 20090038283A1
  • Filed: 08/08/2007
  • Published: 02/12/2009
  • Est. Priority Date: 08/08/2007
  • Status: Abandoned Application
First Claim
Patent Images

1. A combination blower, edger, trimmer and method for tending vegetation, comprising:

  • a motor assembly including a motor, a motor housing, a power control handle, one or more power switches and a throttle control trigger;

    the motor assembly held upright behind an operator on a boom from a fixed point proximal end to the motor;

    a tool assembly including a cutting tool facilitated by a cutting guard mounted tangential to a blower;

    the blower mounted to the boom at a tool distal end;

    the cutting tool including a string trimmer head having a secondary wheel without a hub facing the blower;

    the secondary wheel having an odd numbered air frequencies;

    the tool assembly by the boom from the fixed point to the blower;

    the blower including an oblong nozzle open to ambient air at all times and a primary wheel with a base plate open to ambient air on a flue side and shielded on the opposite side to cutting tool clippings;

    the blower having an open airflow section facing an air inlet and air outlet and a closed airflow section facing the cutting tool;

    a drive shaft contained within the boom and extending from the motor assembly to beyond the boom between the primary and secondary wheel plates;

    the drive shaft held in equilibrium at a fixed point;

    the drive shaft having means for translating axially between the impeller plate and cutting plate by a shifter mounted near the fixed point when the motor is operated at idle speed;

    the drive shaft having means for rotating axially the cutting tool or the impeller with respect to the motor operating speed being substantially equal at wide open throttle;

    the primary wheel having an odd numbered air frequencies;

    the blower being operable alongside lawn perimeter edging return routes;

    the cutting tool including a string trimmer head having a detachable spool string line filaments;

    a handlebar mounted axial to the fixed point;

    the handlebar balanced at the fixed point;

    the handlebar having a gearbox mounted longitudinally to the boom;

    the gearbox having a left and right lateral hub;

    the left hub having a clamp preventing the handlebar diagonal grips from being pulled towards the operator;

    the handlebar having the power control handle mounted longitudinal to the axis of the boom behind the fixed point;

    the handlebar having a side control handle mounted laterally to the axis of the boom within a gearbox hub in front of the fixed point;

    the side control handle coupled to a beveled gear;

    the side control handle having means for reversing the axial rotation of the power control handle at the fixed point;

    the side control handle having means for reversing the throttle control trigger at the fixed point;

    the side control handle having an incline grip for lawn trimming or normal blowing of vegetation;

    the incline grip having means for being transposed onto itself;

    the incline and decline grips aligning diagonally on either side of the fixed point;

    the incline grip aligning with the axis of the boom in a narrow operating framework;

    the decline grip aligning with the axis of the boom in a wide operating framework;

    the gearbox hub having means for locking the side control handle and power control handle from rotation;

    the side control handle being lockable in the gearbox in a plurality of positions to adjust the height of the side control handle;

    the handlebar being lockable in a wide and a narrow operating framework;

    the cutting guard arranged to protect an operator in the narrow operating framework when lawn edging;

    the cutting guard also arranged to protect an operator in the wide operating framework lawn trimming;

    the cutting guard having a skid.

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