Portable working machine

Patent metadata

Field	Value
Publication number	US-10293473-B2
Application number	US-201414891731-A
Country	US
Kind code	B2
Filing date	May 28, 2014
Priority date	May 28, 2013
Publication date	May 21, 2019
Grant date	May 21, 2019

Abstract

A portable working machine including: a driving source; a main body including the driving source; a handle joined with the main body; a fixing portion provided to one of the main body or the handle; and a vibration-proofing mechanism including an elastic body, the handle joined with the main body with the vibration-proofing mechanism and the fixing portion interposed therebetween; wherein the elastic body of the vibration-proofing mechanism is fixed to a first side of the fixing portion, and a stopper portion configured to come into contact with the other of the main body or the handle to regulate a movement amount of the handle is provided at a second side of the fixing portion, which is opposite to the first side of the fixing portion.

First claim

What is claimed is:

1. A portable working machine comprising:
a driving source;
a main body including the driving source;
a handle joined with the main body;
a fixing portion which is a protruding portion and being provided to one of the main body or the handle;
a vibration-proofing mechanism including an elastic body, the handle joined with the main body with the vibration-proofing mechanism and the fixing portion interposed therebetween;
a fixing member; and
a regulating portion provided to another of the main body or the handle;
wherein one longitudinal direction end of the elastic body of the vibration-proofing mechanism is fixed to a first side of the fixing portion by the fixing member, another longitudinal direction end of the elastic body of the vibration-proofing mechanism is fixed to the other of the main body or the handle, and a stopper portion configured to come into contact with the other of the main body or the handle to regulate a movement amount of the handle is provided at a second side of the fixing portion opposite to the first side of the fixing portion,
wherein the fixing member penetrates the fixing portion, and a portion of the fixing member protruding toward the second side of the fixing portion configures the stopper portion, and
wherein the stopper portion penetrates the regulating portion, and the stopper portion and an inner edge of the regulating portion is configured to conic into contact with each other to regulate the movement amount of the handle.

2. The portable working machine according to claim 1 ,
wherein the stopper portion of the fixing member and a portion of the fixing member other than the stopper portion are provided coaxially.

3. The portable working machine according to claim 1 ,
wherein an outer diameter of the stopper portion is smaller than a diameter of a hole formed in the fixing portion.

4. The portable working machine according to claim 1 ,
wherein, when a load, which is three times or larger than a total weight of the portable working machine, is applied to the vibration-proofing mechanism, the handle and the stopper portion comes in contact with each other so that the stopper portion regulates the movement amount of the handle.

5. The portable working machine according to claim 1 ,
wherein the handle includes a supporting portion, and
wherein the elastic body is disposed inside the supporting portion, and one end of the elastic body is fixed to the fixing portion of the main body by the fixing member, and another end of the elastic body is fixed to the supporting portion of the handle by an attaching member.

6. A portable working machine comprising:
a driving source;
a main body including the driving source;
a vibration-proofing mechanism including an elastic body;
a handle joined with the main body with the elastic body interposed therebetween;
a fixing portion which is a protruding portion and being provided to one of the main body or the handle;
a fixing member fixing the elastic body to a first side of the fixing portion; and
a regulating portion provided to another of the main body or the handle;
wherein the fixing member penetrates the fixing portion and the regulating portion, and
wherein the fixing member and an inner edge of the regulating portion is configured to come into contact with each other to regulate the movement amount of the handle at a second side of the fixing portion opposite to the first side of the fixing portion.

Assignees

• Hitachi Koki Kk
• Koki Holdings Co Ltd

Inventors

• Hirai Takahiro

Classifications

• B25F5/006 Primary

  Vibration damping means · CPC title

• B27B17/0033 Primary

  Devices for attenuation of vibrations · CPC title