Title:
軽量締結具設計
Document Type and Number:
Japanese Patent JP6743058
Kind Code:
B2
Abstract:
An improved fastening device includes a shank portion with a first end and a second end disposed from the first end. The fastening device includes a head portion disposed adjacent the second end of the shank portion The head portion of the fastening device includes a lower perimeter adjacent the second end of the shank portion, an upper perimeter disposed away from the lower perimeter and a body portion extending between the lower perimeter and the upper perimeter. The head portion is configured to engage a standard hex-shaped socket. The lower perimeter of the head portion has a generally hex shape and the upper perimeter has a different shape than the lower perimeter.
Inventors:
Lalace, alan
Application Number:
JP2017563912A
Publication Date:
August 19, 2020
Filing Date:
November 12, 2015
Export Citation:
Assignee:
COLD HEADING COMPANY
International Classes:
F16B23/00
Domestic Patent References:
| JP55050331U | ||||
| JP2010133446A | ||||
| JP51071869A | ||||
| JP2011530049A | ||||
| JP53146861U | ||||
| JP2001524392A |
Foreign References:
| CN203835917U |
Attorney, Agent or Firm:
Fukami patent office