Title:
ノズルカバー及びガス切断火口並びにガス切断トーチ
Document Type and Number:
Japanese Patent JP6875094
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a nozzle cover improved in heat dissipation by increasing a surface area of its outer peripheral surface, and a gas cutting burner and a gas cutting torch utilizing the nozzle cover.SOLUTION: A cover A includes: a hole 1 therein in which a nozzle 10 for ejecting cutting oxygen is inserted; and an irregular part 5 composed of multiple convexoconcave portions on an outer peripheral surface. A burner B is constituted by inserting the nozzle 10, which comprises a cutting oxygen injection hole formed in the center and a preheating gas injection groove formed so as to surround the cutting oxygen injection hole, in the hole 1. A torch C includes the cover A having a male screw part 7 disposed at an end part of the outer peripheral surface, and is constituted by fastening the cover A to a female screw part 24 disposed at an end part of a torch body 20.SELECTED DRAWING: Figure 1
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Inventors:
Hiroki Sasa
Tomohiro Nomura
Kazuya Kashimata
Tomohiro Nomura
Kazuya Kashimata
Application Number:
JP2016195550A
Publication Date:
May 19, 2021
Filing Date:
October 03, 2016
Export Citation:
Assignee:
Koike Oxygen Industry Co., Ltd.
International Classes:
B23K7/10
Domestic Patent References:
| JP41011086B1 | ||||
| JP2016147291A | ||||
| JP62081274A | ||||
| JP55054281A |
Attorney, Agent or Firm:
Nakagawa International Patent Office