Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Externally threaded fastener element – e.g. – bolt – screw – etc. – Thread or shank structure
Patent
1996-03-22
1997-07-08
Meyers, Steven N.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Externally threaded fastener element, e.g., bolt, screw, etc.
Thread or shank structure
411411, 411399, 411508, F16B 3504
Patent
active
056453868
ABSTRACT:
A force fit connecting element (1), particularly a wheel stud, which may be force fit into in a drilled hole (3) through the exertion of an axial force, having a shank (5) and a stop (4) in the shape of a head, a collar or the like, having a diameter larger than shank (5). The shank (5) has on the side facing the stop (4) a force fit section (10), which is oversized with respect to the corresponding drilled hole (3). The shank (5) has on the side facing away from the stop (4) a section (22) with a fastening thread (23). The force fit section (10) has a multiple-threaded, preferably at least triple-threaded, helical profile (11). The helical profile (11), with respect to the cylindrical surface area of the drilled hole (3), has a contact area fraction (33) of at least 30% and is made by cold forming.
REFERENCES:
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patent: 3418013 (1968-12-01), Kelly
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patent: 4018132 (1977-04-01), Abe
patent: 4576534 (1986-03-01), Barth et al.
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patent: 4820098 (1989-04-01), Taubert et al.
patent: 5024563 (1991-06-01), Randall
Damm Klaus
Mages Walter
Mohr Andreas
Kamax-Werke Rudolf Kellermann GmbH & Co. KG
Meyers Steven N.
Pham Tuyet-Phuong
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