Anti-vibration structure for a handle of a portable brush cutter

An anti-vibration structure for a handle of a portable brush cutter, the portable brush cutter including a pole, an operation unit provided at a front portion of the pole, an engine provided at a base portion of the pole, and a lever device provided at the base portion of the pole and configured to control an operation of the engine, the anti-vibration structure comprising:

• an attachment stay unit fixed to a middle portion of the pole, the attachment stay unit having a protrusion protruding from each of left and right ends thereof;
• an operation handle having an accommodation recess at each of left and right ends thereof;
• and
• anti-vibration materials sandwiched between the attachment stay unit and the handle main body in a left-right direction of the pole, so that one side of the anti-vibration material is accommodated in the accommodation recess while the protrusion is inserted in an open-groove formed on the other side of the anti-vibration material, wherein the protrusion and the open groove each has an H-like shape,
• wherein a center portion of the H-like shape extends in a widthwise direction relative to the accommodation recess to regulate up-down movement of the protrusion, wherein end portions of the H-like shape extend transversely from each end of the center portion to regulate left-right movement of the protrusion, and wherein the center portion of the H-like shape is longer than the end portions of the H-like shape.