Patent ID: 6260278
Filing Date: 2001-07-17
Classification: A01D

Abstract:
An improvement in a portable lawn and brush trimmer, which includes an elongated tubular boom arm having a proximal end and a distal end, a trimmer head mounted to the distal end of the boom arm, a rotating cutting means extending from the trimmer head, a motor means mounted to the proximal end of the boom arm, and a drive shaft rotatably disposed within the boom arm between the motor means and the trimmer head for transferring rotational motion from the motor means to the cutting means, the improvement comprising:the drive shaft includes a first segment connected to the motor means and a second segment connected to the trimmer head;pivot means mounted to the boom arm and the trimmer head for pivoting the trimmer head angularly with respect to the boom arm;shaft coupling means disposed within the pivot means and operatively coupled to the first segment and the second segment for allowing the first segment and the second segment limited angular movement with respect to each other while transmitting rotary movement between the first segment and the second segment;pivot positioning means mounted to the boom arm and connected to the pivot means for selectively securing the trimmer head between a plurality of discrete pivotal adjustment positions; andswivel means mounted to the pivot means and the trimmer head for rotating the trimmer head axially about the axis of the second segment between an additional plurality of adjustment positions to adjust the orientation of the cutting means.