Backpack power apparatus

Patent metadata

Field	Value
Publication number	US-9364125-B2
Application number	US-201313895766-A
Country	US
Kind code	B2
Filing date	May 16, 2013
Priority date	May 23, 2012
Publication date	Jun 14, 2016
Grant date	Jun 14, 2016

Abstract

A backpack power apparatus is comprised of a back carrier frame for being piggybacked by a user, a blower unit including a fan driven by a drive motor for sucking in or blowing out air through an airflow duct, and an airflow tube fluidically communicating with the airflow duct of the blower unit for sucking in or blowing out air through the airflow tube. The blower unit is mounted on the back carrier frame via a vibration isolating means, and the airflow tube is supported on the back carrier frame and adapted for being held and operated by the user when in use. The airflow tube is floatingly coupled to the airflow duct of the blower unit.

First claim

What is claimed is:

1. A backpack power apparatus, comprising:
a back carrier frame for being piggybacked by a user;
a blower including a fan driven by a drive motor for sucking in or blowing out air through an airflow duct, the blower being mounted on the back carrier frame via a vibration isolator;
an airflow tube fluidically communicating with the airflow duct of the blower for sucking in or blowing out air through the airflow tube, the airflow tube being adapted for being held and operated by the user when in use; and
a support connected to the airflow tube and the back carrier frame so as to support the airflow tube on the back carrier frame, the airflow tube having a proximal end and the airflow duct having a distal end, and wherein the support supportingly holds the airflow tube on the back carrier frame such that the proximal end of the airflow tube does not contact the distal end of the airflow duct.

2. A backpack power apparatus as claimed in claim 1 , wherein the proximal end of the airflow tube and the distal end of the airflow duct are coupled together by an airtight seal member which has a property of preventing vibrations of the airflow duct of the blower from being transmitted to the airflow tube.

3. A backpack power apparatus as claimed in claim 2 , wherein the airtight seal member is made of rubber sponge.

4. A backpack power apparatus as claimed in claim 1 , wherein the backpack power apparatus is a backpack blower apparatus which blows out air from the airflow tube fluidically communicating with the airflow duct.

5. A backpack power apparatus as claimed in claim 1 , wherein the backpack power apparatus is a backpack suction apparatus which sucks in air into the airflow tube fluidically communicating with the airflow duct.

6. A backpack power apparatus as claimed in claim 2 , wherein the backpack power apparatus is a backpack blower apparatus which blows out air from the airflow tube fluidically communicating with the airflow duct.

7. A backpack power apparatus as claimed in claim 2 , wherein the backpack power apparatus is a backpack suction apparatus which sucks in air into the airflow tube fluidically communicating with the airflow duct.

8. A backpack power apparatus as claimed in claim 3 , wherein the backpack power apparatus is a backpack blower apparatus which blows out air from the airflow tube fluidically communicating with the airflow duct.

9. A backpack power apparatus as claimed in claim 3 , wherein the backpack power apparatus is a backpack suction apparatus which sucks in air into the airflow tube fluidically communicating with the airflow duct.

Assignees

• Makita Corp

Inventors

• Takahashi Yuji

Classifications

• E01H1/0836

  Apparatus dislodging all of the dirt by suction (combined with loosening by blowing E01H1/0863; liquids or semi-liquids E01H1/108; removing snow by suction E01H5/106, E01H8/08; for cleaning rails E01H8/105, E01H8/125); Suction nozzles (suction and blowing nozzles E01H1/0863) · CPC title

• E01H1/0809

  Loosening or dislodging by blowing (combined with suction E01H1/0863; with steam E01H1/10; removing snow by blowing E01H5/106; cleaning rails by blowing E01H8/105, E01H8/125; removing fog by blowing E01H13/00; cleaning joints in road construction by blowing E01C23/0906); Drying by means of gas streams (combined with snow or ice melting E01H5/10) · CPC title

• A47L5/14 Primary

  cleaning by blowing-off, also combined with suction cleaning · CPC title

• A47L5/36

  Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back · CPC title

• A01G1/125

  Human Necessities · mapped topic