Backpack blower

a backpack and blower technology, applied in the field of backpack blowers, can solve the problems of back pad noise attenuation and other problems, and achieve the effect of eliminating the noise generated by the working member

Inactive Publication Date: 2007-12-27
KIORITZ
View PDF4 Cites 23 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0014] Furthermore, since the blower is a working member that generates noise, the present invention can also be defined as a backpack working machine comprising a working member that generates noise, a backpack frame that is used to support this working member on the back of a user, and a back pad that is coupled to the backpack fr

Problems solved by technology

In addition, the back pad also

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Backpack blower
  • Backpack blower
  • Backpack blower

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Embodiments of the present invention will be described below with reference to the attached figures.

[0020]FIG. 1 depicts a backpack blower 1 suitable for blowing away fallen leaves L, cut branches and leaves, and the like.

[0021] The backpack blower 1 of the present embodiment comprises a centrifugal blower 5 as a blower, and a backpack frame 4 that is used to support this blower 5 on the back of an operator U. The backpack frame 4 has a pair of backpack straps, i.e., left and right backpack straps 3, 3. For example, an internal combustion engine 6 such as an air-cooled two-cycle gasoline engine or the like is mounted on the backpack frame 4 as a motor that is used to drive the blower 5. An air discharge pipe 9 is connected to the air discharge opening 5a of the blower 5 via an elbow pipe 7 and a bellows hose 8.

[0022] The operator or user U carries the backpack frame 4 on the back via the left and right backpack straps 3, 3, and grips a grip part 10 that is attached to the ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

A backpack blower comprising a blower which has an air intake opening, a backpack frame which is used to support the blower on the back of a user, and a back pad that is coupled to the backpack frame and contacts the back of the user. The back pad is composed of a cushion material and has a back surface contacting the back of the user and an opposite surface. The air intake opening communicates with at least a portion of the opposite surface, so that the air intake noise of the blower can reach at least the portion of the opposite surface.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a backpack blower in which a blower is mounted on a backpack frame. This application claims priority to Japanese Patent Application No. 2006-171065, filed Jun. 21, 2006, the entire contents of which is hereby incorporated by references. [0003] 2. Description of the Related Art [0004] Backpack blowers are machines that are suitable for blowing cut grass or fallen leaves. During the operation of a backpack blower, noise is generated by various causes; one such cause is the air intake noise of the blower that is mounted on the backpack frame. Naturally, it is desirable that this air intake noise be as small as possible. [0005] Accordingly, a technique has been proposed for the purpose of reducing the air intake noise (see US-2002-0060107-A1) in which a hollow space is formed in the backpack frame, and small holes are formed in a wall that constitutes the hollow space and that faces the ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): A47L9/00
CPCA01G1/125A47L9/0081A47L5/36A47L5/14A01G20/47
Inventor IIDA, GIICHITSUTSUI, NAOSHITAKANO, MASAYUKI
Owner KIORITZ
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap