Fastener driving tool

Patent metadata

Field	Value
Publication number	US-9789596-B2
Application number	US-201414318897-A
Country	US
Kind code	B2
Filing date	Jun 30, 2014
Priority date	Jul 4, 2013
Publication date	Oct 17, 2017
Grant date	Oct 17, 2017

Abstract

A fastener driving tool injects a fastener from an injection passage formed in a leading end of a tool main body. The injection passage includes therein a guide portion formed along a driving direction of the fastener for guiding the fastener. The guide portion is formed by providing contours having mutually different distances from a center of the injection passage in a cross-section of the injection passage.

First claim

What is claimed is:

1. A fastener driving tool for injecting a fastener from an injection passage formed in a leading end of a tool main body,
wherein the injection passage includes therein a guide portion formed along a driving direction of the fastener for guiding the fastener,
the guide portion is formed by providing contours having mutually different distances from a center axis of the injection passage in a same cross-section of the injection passage that is perpendicular to the center axis, and
the guide portion is disposed opposite to a grip in an inner surface of the injection passage.

2. The fastener driving tool according to claim 1 ,
the guide portion is configured to guide a tiptoe of the fastener opposite to the grip and to guide a head of the fastener while inclined toward the grip.

3. The fastener driving tool according to claim 1 ,
wherein the guide portion is formed of a guide groove.

4. The fastener driving tool according to claim 3 ,
wherein the guide groove has a width smaller than a diameter of a head of the fastener.

5. The fastener driving tool according to claim 3 ,
wherein the guide groove has a depth smaller than a diameter of a shaft portion of the fastener.

6. The fastener driving tool according to claim 3 ,
wherein a second groove is formed shallower than the guide groove.

7. The fastener driving tool according to claim 1 ,
wherein a supply passage for supplying the fastener is connected to the injection passage, and
the supply passage is disposed offset to a center position of the injection passage.

8. The fastener driving tool according to claim 1 ,
wherein the guide portion is formed nearer to the leading end of the tool main body than a leading end of a fastener supplied to the injection passage.

9. The fastener driving tool according to claim 1 ,
wherein a supply passage for supplying the fastener is connected to the injection passage, and
the guide portion is formed nearer to the leading end of the tool main body than the supply passage.

10. A fastener driving tool for injecting a fastener from an injection passage formed in a nose portion of a tool main body, comprising:
a contact nose that has a substantially cylindrical injection route having an inside diameter substantially equal to an inside diameter of the injection passage formed in the nose portion,
wherein the injection route includes therein a guide portion formed along a driving direction of the fastener for guiding the fastener,
the guide portion is formed by providing contours having mutually different distances from a center axis of the injection route in a same cross-section of the injection route that is perpendicular to the center axis, and
the guide portion is disposed opposite to a grip in an inner surface of the injection route.

Assignees

• Max Co Ltd

Inventors

• Moriwaki Kousuke
• Ida Keisuke
• Hoshino Takamichi

Classifications

• B25C1/188 Primary

  Arrangements at the forward end of the barrel, e.g. splinter guards, spall minimisers, safety arrangements, silencers, bolt retainers · CPC title

• B25C1/184

  for nails · CPC title

• B25C1/04 Primary

  operated by fluid pressure {, e.g. by air pressure} · CPC title

• B25C7/00

  Accessories for nailing or stapling tools, e.g. supports (for tools operated by detonation of a cartridge B25C1/18) · CPC title