Electric Working Machine

Patent metadata

Field	Value
Publication number	US-2025387795-A1
Application number	US-202519063600-A
Country	US
Kind code	A1
Filing date	Feb 26, 2025
Priority date	Jun 19, 2024
Publication date	Dec 25, 2025
Grant date	—

Abstract

A backpack type electric working machine adapted to be used by attaching a battery is provided. The electric working machine comprises: a working machine body including a storage case configured to store the battery and a connection terminal configured to be electrically connected to the battery; and a back carrying part attached to the working machine body and used by an operator to carry the working machine body on his/her back, the storage case including a tubular barrel, a drain hole opening downward from the barrel, and an opening configured to allow the battery to be introduced to an inner side of the barrel, the connection terminal being arranged on an inner side of the barrel opposite the opening, the drain hole being provided between the connection terminal and the opening.

First claim

What is claimed is:

1 . A backpack type electric working machine adapted to be used by attaching a battery, comprising:
a working machine body including a storage case configured to store the battery and a connection terminal configured to be electrically connected to the battery; and a back carrying part attached to the working machine body and used by an operator to carry the working machine body on his/her back, the storage case including a tubular barrel, a drain hole opening downward from the barrel, and an opening configured to allow the battery to be introduced to an inner side of the barrel, the connection terminal being arranged on an inner side of the barrel opposite the opening, the drain hole being provided between the connection terminal and the opening.

2 . The electric working machine according to claim 1 , wherein:
the battery protrudes from the opening of the barrel in a state where the battery is stored in the storage case.

3 . The electric working machine according to claim 1 , wherein:
the storage case further includes a guide passage that guides liquid to the drain hole.

4 . The electric working machine according to claim 3 , wherein:
the guide passage is provided along an inner surface of a lower side of the barrel and is a groove that communicates with the drain hole.

5 . The electric working machine according to claim 3 , wherein:
the battery has a guide shape on its outer surface that guides liquid to the guide passage.

6 . The electric working machine according to claim 3 , wherein:
the storage case further includes a slide rail configured to slide and store the battery, and the guide passage is positioned below the slide rail.

7 . The electric working machine according to claim 1 , wherein:
the storage case is arranged so as to be inclined downward from the opening toward an opposite side to the opening.

8 . The electric working machine according to claim 1 , wherein:
the storage case is arranged with the connection terminal on the back carrying part side.

9 . The electric working machine according to claim 1 , wherein:
the working machine body includes a recessed portion in which the storage case is arranged and a lid configured to close the recessed portion, and the lid includes a lid body and a support portion that supports the lid body rotatably to the working machine body.

10 . The electric working machine according to claim 1 , wherein: the electric working machine is a power sprayer, a mist blower, or a blower.

Assignees

• Yamabiko Corp

Inventors

• Miyaki Hiroyuki
• Meguro Tomoya
• Asano Ryuta

Classifications

• B25F5/02

  Construction of casings, bodies or handles {(B25F5/006, B25F5/008 take precedence)} · CPC title

• B05B9/08 Primary

  Apparatus to be carried on or by a person, e.g. of knapsack type ({B05B9/0426, B05B11/00 take precedence } ; details or components, e.g. casings, bodies of portable power-driven tools not particularly related to the operation performed B25F5/00) · CPC title

• B05B9/0861

  the motor being electric · CPC title

• B05B9/0888 Primary

  Carrying means for knapsack sprayers · CPC title

• Y02E60/10

  Energy storage using batteries · CPC title