Driving machine

Patent metadata

Field	Value
Publication number	US-2016151901-A1
Application number	US-201514951498-A
Country	US
Kind code	A1
Filing date	Nov 25, 2015
Priority date	Nov 28, 2014
Publication date	Jun 2, 2016
Grant date	—

Abstract

A driving machine is provided to prevent clogging of a fastener in an ejection passage without increasing the total length of the ejection passage. A nail driving machine includes: a nose part forming an upper portion of an ejection passage through which a nail passes; a contact part being slidable along the nose part and forming a lower portion of the ejection passage; a driver blade striking a head part of the nail supplied to the ejection passage; and a guide part disposed in a lower portion of the nose part and guiding the nail passing through the ejection passage. The guide part has a guide surface inclining to protrude from a radial outer side toward a radial inner side of the ejection passage. A housing groove is formed in the contact part and the guide part enters the housing groove when the contact part slides along the nose part.

First claim

What is claimed is:

1 . A driving machine for driving a fastener, which comprises a head part formed on an end of a shaft part and having a larger diameter than the shaft part, into an object to be fixed, the driving machine comprising:
a nose part forming an upper portion of an ejection passage through which the fastener passes; a contact part being slidable along the nose part and forming a lower portion of the ejection passage; a driver blade striking the head part of the fastener supplied to the ejection passage; and a guide part disposed in a lower portion of the nose part and guiding the fastener passing through the ejection passage, wherein the guide part comprises a guide surface that inclines to protrude from a radial outer side toward a radial inner side of the ejection passage, and wherein a housing groove is formed in the contact part and the guide part enters the housing groove when the contact part slides along the nose part.

2 . The driving machine according to claim 1 , wherein ½ or more of the guide part enters the housing groove.

3 . The driving machine according to claim 1 , wherein a portion of the guide surface of the guide part housed in the housing groove forms an inner peripheral surface of the ejection passage with an inner peripheral surface of the contact part.

4 . The driving machine according to claim 1 , wherein a width of the housing groove is smaller than the diameter of the head part of the fastener.

5 . The driving machine according to claim 1 , wherein when the head part of the fastener is in contact with a portion of the guide part that is closest to a center of the ejection passage, at least a portion of the head part is located in the ejection passage.

6 . The driving machine according to claim 1 , wherein the nose part and the guide part are individual parts, and an engaging member is interposed between the nose part and the guide part.

7 . The driving machine according to claim 6 , wherein a buffer member is interposed between the nose part and the guide part.

Assignees

• Hitachi Koki Kk

Inventors

• Nishida Masashi
• Iijima Yoshimitsu
• Nagao Masaya

Classifications

• B25C1/008 Primary

  Safety devices · CPC title

• B25C1/184

  for nails · CPC title

• B25C1/047 Primary

  Mechanical details · CPC title