Working machine

Patent metadata

Field	Value
Publication number	US-11540442-B2
Application number	US-202017098691-A
Country	US
Kind code	B2
Filing date	Nov 16, 2020
Priority date	Nov 27, 2019
Publication date	Jan 3, 2023
Grant date	Jan 3, 2023

Abstract

A working machine may include an operation rod; a tool disposed on a front portion of the operation rod; a prime mover configured to drive the tool; a first harness connector disposed frontward of a center of gravity of the working machine and configured to be connected to a first end of the harness; and a second harness connector disposed rearward of the center of gravity of the working machine and configured to be connected to a second end of the harness opposite to the first end. In a side view of the working machine, the center of gravity of the working machine may be positioned on a first harness connector side with respect to a plane that passes through a midpoint of a line connecting the first harness connector with the second harness connector and is perpendicular to the line.

First claim

What is claimed is:

1. A working machine to which a harness that is wearable over a shoulder of a user is attachable, the working machine comprising:
an operation rod;
a tool disposed on a front portion of the operation rod;
a prime mover configured to drive the tool;
a first harness connector disposed frontward of a center of gravity of the working machine and configured to be connected to a first end of the harness; and
a second harness connector disposed rearward of the center of gravity of the working machine and configured to be connected to a second end of the harness opposite to the first end,
wherein a loop handle is disposed on the operation rod, the loop handle being configured to be gripped by a user during operation of the working machine,
a grip is disposed rearward of the loop handle on the operation rod, the grip being configured to be gripped by the user during the operation of the working machine,
the grip comprises the first harness connector,
wherein in a side view of the working machine, the center of gravity of the working machine is positioned on a first harness connector side with respect to a plane that passes through a midpoint of a line connecting the first harness connector with the second harness connector and is perpendicular to the line connecting the first harness connector with the second harness connector, wherein the midpoint is a point equidistant from both ends of the line between the first harness connector and the second harness connector.

2. The working machine according to claim 1 , wherein the second harness connector is disposed in a vicinity of a rear end of the working machine.

3. The working machine according to claim 2 , wherein
the prime mover is a motor,
the working machine further comprises:
a housing disposed on a rear portion of the operation rod;
a battery pack configured to be detachably attached to a rear portion of the housing and supply electric power to the motor; and
a battery guard configured to guard the battery pack from impact, and

the battery guard comprises the second harness connector.

Assignees

• Makita Corp

Inventors

• Watanabe Koji

Classifications

• A01D34/902 Primary

  Ergonomic provisions · CPC title

• A01G3/08

  Other tools for pruning, branching or delimbing standing trees · CPC title

• A01D34/68 Primary

  with motor driven cutters or wheels · CPC title

• A01D34/82

  Other details · CPC title

• A01D34/78

  electric · CPC title