US 11,832,564 B2
Brush cutter
Yuki Koike, Saitama (JP); Dai Hyakusawa, Saitama (JP); Shingo Tsuruoka, Saitama (JP); Takahiro Nakayama, Saitama (JP); Takahiro Yamamoto, Saitama (JP); Takuma Kimoto, Saitama (JP); and Toshiro Uchida, Saitama (JP)
Assigned to HONDA MOTOR CO., LTD., Tokyo (JP)
Appl. No. 17/043,992
Filed by HONDA MOTOR CO., LTD., Tokyo (JP)
PCT Filed Mar. 30, 2018, PCT No. PCT/JP2018/013961
§ 371(c)(1), (2) Date Sep. 30, 2020,
PCT Pub. No. WO2019/187147, PCT Pub. Date Oct. 3, 2019.
Prior Publication US 2021/0029888 A1, Feb. 4, 2021
Int. Cl. A01G 3/06 (2006.01); A01D 34/416 (2006.01)
CPC A01G 3/062 (2013.01) [A01D 34/416 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A brush cutter comprising:
a drive unit;
a working unit which is driven by power of the drive unit;
a shaft which transmits the power of the drive unit to the working unit;
a tubular portion which is disposed between the drive unit and the working unit, and in which the shaft is inserted;
a floating box which has a handle support portion; and
a handle which is supported by the handle support portion,
wherein the brush cutter includes a vibration absorbing member which fits in a tubular portion side fitting portion provided in the tubular portion and fits in a box side fitting portion provided in the floating box,
wherein the vibration absorbing member includes:
an inner peripheral portion of which an inner peripheral surface abuts on the tubular portion side fitting portion;
an outer peripheral portion of which an outer peripheral surface abuts on the box side fitting portion;
a plurality of ribs which connect the inner peripheral portion and the outer peripheral portion; and
a pair of stopper portions protruding from the outer peripheral portion toward the inner peripheral portion and facing the inner peripheral portion via clearance portions,
wherein the pair of stopper portions are arranged at a position orthogonal to a vertical plane passing through a center of the handle support portion and a center of the shaft when viewed from an axial direction, and
wherein the plurality of ribs are arranged on both sides of the vertical plane at positions displaced from the vertical plane.