Title:
鋲打ち方法および鋲
Document Type and Number:
Japanese Patent JP6924991
Kind Code:
B2
Abstract:
To fasten two members by a fastening force which is larger than before while enabling high-speed fastening.SOLUTION: A metal-made rivet 1 for fastening a fastened material which is formed by making a rear surface of the other plate material overlapped on a surface of one plate material comprises a disc-shaped head part 2, and a tapered shaft part 3 which is formed at a center part of the head part 2. A spiral groove 3b is engraved at an external peripheral face of the shaft part 3 toward a base end side from a tip side, and the shaft part 3 is screwed into the fastened material while rotating by the spiral groove 3b. Here, it is preferable that a lead angle of the spiral groove 3b is 75°±2.5°, and it is preferable that a spiral angle of the spiral groove 3b is 270°±25°.SELECTED DRAWING: Figure 2
Inventors:
Hisashi Hori
Hashimura Shinji
Hashimura Shinji
Application Number:
JP2017163769A
Publication Date:
August 25, 2021
Filing Date:
August 28, 2017
Export Citation:
Assignee:
NIPPON LIGHT METAL COMPANY,LTD.
Shibaura Institute of Technology
Shibaura Institute of Technology
International Classes:
F16B5/04; F16B15/00; F16B15/06
Domestic Patent References:
| JP5280209B2 | ||||
| JP2002122111A | ||||
| JP10339312A |
Foreign References:
| DE102004040701B3 | ||||
| US2944261 | ||||
| US2676508 | ||||
| US5127785 | ||||
| US2722004 |
Attorney, Agent or Firm:
Isono International Patent and Trademark Office