Patent ID: 8667695
Filing Date: 2014-03-11
Classification: A01D

Abstract:
1. A work head for a rotational brush cutter, comprising: an upper plate; a lower plate comprising a circular housing having a passage formed in the housing from an inner circular side to an outer circular side, and further comprising a gear arranged in the passage; the upper plate and the lower plate being fixedly coupled; a sliding guide groove arranged on the inner circular side of the circular housing and in communication with the passage, wherein the sliding guide groove has a first end proximal to the passage and a second end distal of the passage, the first end being deeper and wider than the second end with a transition from the first end to the second end; a blade comprising a blade body portion and a connection portion, wherein the blade body portion and the connection portion are arranged on both sides of the gear, the blade body portion being movable to extend out of the outer circular side.