Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Threaded fastener locked to a discreet structure – Design of fastener or substructure restricts rotation
Patent
1997-03-05
1998-08-18
Meyers, Steven N.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Threaded fastener locked to a discreet structure
Design of fastener or substructure restricts rotation
411 82, 411258, 411908, F16B 3706
Patent
active
057951187
ABSTRACT:
A tacking device for tacking a first member to a second member comprises a tacking member having a fusible plate and a pin having a bulged tip and projecting from the lower surface of the fusible plate; and a retaining member having a substantially cylindrical body provided with a plurality of catches on its outer circumference. The tacking member is rotated at a high rotating speed or vibrated with the fusible plate pressed against the first member so that the upper surface of the fusible plate is fused by frictional heat to weld the tacking member to the first member, the pin is inserted in the central hollow of the retaining member so that the expanded tip of the pin is caught by the retaining member to combine the tacking member and the retaining member, and the retaining member is forced into a hole formed in the second member so that the catches engage with the edge of the hole to tack the first member to the second member.
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patent: 5435679 (1995-07-01), Barry
Nakaya Hiroyuki
Osada Hiroshi
Meyers Steven N.
Nifco Inc.
Pham Tuyet-Phuong
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