Handheld electric vacuum

Patent metadata

Field	Value
Publication number	US-11617481-B2
Application number	US-202117540484-A
Country	US
Kind code	B2
Filing date	Dec 2, 2021
Priority date	Jan 27, 2021
Publication date	Apr 4, 2023
Grant date	Apr 4, 2023

Abstract

A handheld electric vacuum configured to perform sucking work includes: a pipe including a suction port at one end and a discharge port at the other end; a blower provided outside the pipe and driven by an electric motor; a handle provided outside the pipe and near the discharge port in a longitudinal direction of the pipe, and configured to be held by a hand; and an ejector provided near the suction port in the longitudinal direction of the pipe, and configured to feed pressurized wind generated by the blower into the pipe from around the pipe, and to eject the pressurized wind to the discharge port.

First claim

The invention claimed is:

1. A handheld electric vacuum configured to peform sucking work, comprising:
a pipe including a suction port at one end and a discharge port at the other end;
a blower provided outside the pipe and driven by an electric motor;
a handle provided outside the pipe and near the discharge port in a longitudinal direction of the pipe, and configured to be held by a hand;
an ejector provided near the suction port in the longitudinal direction of the pipe, and configured to feed pressurized wind generated by the blower into the pipe from around the pipe, and to eject the pressurized wind to the discharge port, wherein:
the pipe includes a front pipe including the suction port, and a pipe body including the discharge port at its base end, the front pipe being connected to a front end of the pipe body;
the ejector ejects the pressurized wind along an outside of the front pipe inserted into the pipe body,
the front pipe is slidably connected to the pipe body; and
a division plate is provided on a periphery of the front pipe and configured to switch between the discharge port and suction port to which the pressurized wind fed by the ejector is ejected.

2. A handheld electric vacuum configured to perform sucking work, comprising:
a pipe including a suction port at one end and a discharge port at the other end;
a blower provided outside the pipe and driven by an electric motor;
a handle provided outside the pipe and near the discharge port in a longitudinal direction of the pipe, and configured to be held by a hand;
an ejector provided near the suction port in the longitudinal direction of the pipe, and configured to feed pressurized wind generated by the blower into the pipe from around the pipe, and to eject the pressurized wind to the discharge port; and
a battery configured to supply the electric motor with power, wherein:
the ejector and the blower are disposed near a front side of the handheld electric vacuum, and
the handle and the battery are disposed near a back side of the handheld electric vacuum.

3. The handheld electric vacuum according to claim 2 , wherein an inside diameter of the pipe over an entire length of the pipe is equal to or greater than a bore of the suction port.

4. The handheld electric vacuum according to claim 2 , wherein the pipe includes a bending portion between a center of the pipe in the longitudinal direction and the discharge port.

5. The handheld electric vacuum according to claim 2 , wherein a center of gravity of a main body of the handheld electric vacuum is located below a grip of the handle.

6. The handheld electric vacuum according to claim 2 , wherein:
the ejector includes a circular flow path into which the pressurized wind generated by the blower is introduced, the circular flow path being provided around a central axis of the pipe and protruding outward from the pipe; and
the pressurized wind becomes swirling flow around the central axis in the circular flow path.

7. The handheld electric vacuum according to claim 2 , wherein:
the pipe includes a front pipe including the suction port, and a pipe body including the discharge port at its base end, the front pipe being connected to a front end of the pipe body; and
the ejector ejects the pressurized wind along an outside of the front pipe inserted into the pipe body.

8. The handheld electric vacuum according to claim 2 , wherein the battery is attached to an outside of the pipe near the discharge port.

9. The handheld electric vacuum according to claim 8 , wherein the handle is located between a center of gravity of the battery and a center of gravity of the blower.

Assignees

• Yamabiko Corp

Inventors

• Suzuki Kenji

Classifications

• E01H1/0863 Primary

  Apparatus loosening or removing the dirt by blowing and subsequently dislodging it at least partially by suction (liquids or semi-liquids E01H1/108); Combined suction and blowing nozzles · CPC title

• A47L9/248

  Parts, details or accessories of hoses or pipes (nozzles A47L9/02) · CPC title

• F04D25/08

  the working fluid being air, e.g. for ventilation · CPC title

• A47L9/322

  for hand-supported suction cleaners · CPC title

• A47L7/00

  Suction cleaners adapted for additional purposes (suction devices for removing ash F23J1/02); Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids · CPC title