Joints and connections – Screw or cam
Patent
1995-10-04
1997-10-07
Johnson, Blair
Joints and connections
Screw or cam
403398, 403399, 411437, 361814, 307 101, B25G 300
Patent
active
056740255
ABSTRACT:
An electronic device mounting structure, which allows threaded engagement with a standardized male screw compliant with the JIS, DIN or the like without having to perform tapping on a plate material, includes an engagement hole having first and second cutouts formed in a peripheral edge section thereof, wherein the peripheral edge section of the engagement hole is deformed in the plate thickness direction such that there is a positional deviation from a first peripheral edge end section bordering on the first cutout toward a second peripheral edge section bordering on the second cutout by approximately one half of the pitch of a standardized male screw compliant with the JIS and a further positional deviation from a third peripheral edge end section bordering on the second cutout toward a fourth peripheral edge end section bordering on the first cutout by approximately one half of the pitch, with the result that there is a positional deviation corresponding to one pitch of the male screw between the first and fourth peripheral edge end sections on opposite sides of the first cutout, thereby making it possible for the male screw compliant with the JIS to be threadedly engaged with the engagement hole. The provision of two cutouts in the engagement hole makes it possible for the peripheral edge section to be deformed with high accuracy.
REFERENCES:
patent: 2408573 (1946-10-01), Morehouse
patent: 2986059 (1961-05-01), Duffy et al.
patent: 3207022 (1965-09-01), Tinnerman
patent: 3212391 (1965-10-01), Duffy
patent: 3464308 (1969-09-01), Dohmeier
patent: 3491646 (1970-01-01), Tinnerman
patent: 3570361 (1971-03-01), Tinnerman
patent: 3583274 (1971-06-01), Duffy
patent: 5381684 (1995-01-01), Kawamura
Nakatomi Yoshiyuki
Shibuya Yasushi
Alpine Electronics Inc.
Bever Patrick T.
Johnson Blair
Lev Bruce A.
Shoup Guy W.
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