Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Having separate expander means – Including sleeve and distinct tapered expander
Patent
1988-02-03
1989-11-21
Wilson, Neill R.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Having separate expander means
Including sleeve and distinct tapered expander
411 44, 411353, 4034081, F16B 1306, F16B 2118
Patent
active
048818607
ABSTRACT:
A fixing structure in which screw engagement members are applied to mating thread portions formed in a fixed member through mounting holes provided in a mounting member and having a larger diameter than the outer diameter of the screw engagement members to hold the mounting member of the fixed member, said fixing structure is characterized by the provision of engaging members of elastic material which have a free size outer diameter nearly equal to or smaller than the bore diameter of the through mounting holes of the mounting member for engaging said screw engagement members, so that the elastic engaging members radially expand as the screw engagement members move toward engagement with the fixed member to engage themselves with the outer circumference or inner wall of said through mounting holes of the mounting member for securely fixing said mounting member to said fixed member.
REFERENCES:
patent: 3812756 (1974-05-01), Wenger
patent: 3922831 (1975-12-01), Fischer
patent: 4470735 (1984-09-01), Salisbury
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