Title:
FASTENING TOOL
Document Type and Number:
Japanese Patent JP3834442
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To strongly fasten folded plates, also surely prevent them from loosening and improve the appearance and safety.
SOLUTION: The shaft section 11a of a blind bolt 11 is inserted into a pair of folded plates 20 with a leg opening collar 13 and a resin insert 14 fitted in this order, and a fastening nut 12 is fastened with a water proof packing 15 and throttle washer 16 are fitted in this order. At the opposite side tip section of a head section 11b, the shaft section 11a of the blind bolt 11 is provided with a square pole-shaped chucking section 11c provided with screw groove sections 11d, and a pair of screw grooves 11e and 11g are provided continuously with the screw grooves 11d through a groove section 11f for cutting in the same direction as the screw grooves 11d, in addition, a reverse thread groove 11h is provided in the opposite direction.
Inventors:
Masahiro Hirata
Application Number:
JP134999A
Publication Date:
October 18, 2006
Filing Date:
January 06, 1999
Export Citation:
Assignee:
Hirata Screw Co., Ltd.
International Classes:
F16B13/04; F16B31/02; F16B39/30; (IPC1-7): F16B13/04; F16B31/02; F16B39/30
Domestic Patent References:
| JP8121443A | ||||
| JP4219511A | ||||
| JP10227308A | ||||
| JP3018180U | ||||
| JP63042720U | ||||
| JP8144369A |
Attorney, Agent or Firm:
Noboru Tani
Yoshiro Kurauchi
Yoshiro Kurauchi
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