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US 5,516,247 AGranted
Fastening device
AssigneeHitachi, Ltd.
InventorsYuji Hosoda, Eisaku Hayashi, Masanori Suzuki
Life of this patent
Estimating the term…
Abstract
The invention is a fastening device for fastening a plurality of structures using a bolt and a nut. At least two bolts are provided each having a screw portion at one end. At least one nut is provided for each of the bolts. The nut has a flange having a diameter greater than a distance between axes of the bolts with relative rotation of the nuts being restricted by fixing mutually overlapping portions of the flanges of the nuts threaded on the bolts to each other.
Claims6
A fastening device for fastening a plurality of structures using a bolt and a nut, said device comprising:
- at least two bolts each having a screw portion at one end;
- and
- at least one nut for each of said bolts, said nut having a flange having a diameter greater than a distance between axes of said bolts with relative rotation of said nuts being restricted by fixing mutually overlapping portions of said flanges of said nuts threaded on said bolts to each other.
Dependencies are inferred from the claim text.