Counterweight devices and systems for paintbrushes and other hand tools

摘要

Counterweight devices and systems for a hand tool, such as a paintbrush, having a forward working end and a handle extending rearwardly along a longitudinal axis, having a distal end, with the hand tool having a center of gravity located on the axis forward of the midpoint between the working and distal ends, are disclosed. A counterweight device includes a counterweight body configured to be mounted to a portion of the handle, and one or more counterweights supported on the counterweight body. The counterweight device is thereby adapted to shift the center of gravity of the hand tool rearward along the axis of the handle to a predetermined extent when the counterweight body is mounted to the handle. A counterweight system includes a set of interchangeable counterweights each having a different weight and each configured to be removably attached either to the counterweight body or to a counterweight attached thereto.

主权项

1. A counterweight device for a paintbrush having a paintbrush head disposed at a forward end thereof and a paintbrush handle extending generally rearward from the paintbrush head along a longitudinal axis and terminating at a distal end, the paintbrush having a center of gravity located on the longitudinal axis forward of the midpoint between the forward and distal ends, the counterweight device comprising:
a counterweight body configured to be selectively mounted to a portion of the paintbrush handle; and a first counterweight and a second counterweight supported on the counterweight body, wherein the counterweight device is adapted to shift the center of gravity of the paintbrush rearward along the longitudinal axis of the paintbrush to a predetermined extent when the counterweight body is mounted to the paintbrush handle, wherein the counterweight body includes a post portion adapted to be received in a corresponding opening formed in the paintbrush handle, the first counterweight being supported on a first end of the post portion and the second counterweight being adapted to be detachably mounted to a second end of the post portion, wherein the opening is a hang hole disposed proximate the distal end of the paintbrush handle and extends through the paintbrush handle, and wherein the post portion is adapted to extend through the hang hole.