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Resistance Welding-Hot Up-Set "Captive Nut Assembly" Geo-Metric Form

IP.com Disclosure Number: IPCOM000035317D
Original Publication Date: 1989-Jul-01
Included in the Prior Art Database: 2005-Jan-28
Document File: 2 page(s) / 61K

Publishing Venue

IBM

Related People

Goodrich, RA: AUTHOR

Abstract

Referring to Figs. 1-3, captive nut 10 is fixed with respect to a thin material part 12 by means of threaded stud 14, and nut 10 is held in place in threaded engagement on stud 14 by means of various expedients to be described.

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Resistance Welding-Hot Up-Set "Captive Nut Assembly" Geo-Metric Form

Referring to Figs. 1-3, captive nut 10 is fixed with respect to a thin material part 12 by means of threaded stud 14, and nut 10 is held in place in threaded engagement on stud 14 by means of various expedients to be described.

Stud 14 is shown in Fig. 1 to have its upper reduced diameter end extending through opening 16 in part 12. Stud 14 has an axial cavity 18 in its lower end. In Fig. 2, stud 14 is shown swaged over in the lower cavity 20 of nut 10 so as to hold nut 10 from relative movement with respect to stud 14.

Fig. 4 shows the same construction as Fig. 3, but the upper end of stud 14 is arc welded at 22 to firmly fix stud 14 to part 12.

Fig. 5 shows the same construction as Fig. 4, but stud 14, in this case, has annulus 24 formed on it, underlying part 12 for greater stability of the assembly.

(Image Omitted)

Fig. 6 shows substantially the same construction as Fig. 4, but stud 14 in this case has an integrally formed skirt portion 26 disposed in cavity 20 of nut 10.

Fig. 7 shows substantially the same construction as Fig. 4 but with snap ring 28 disposed in an annular slot in the bottom portion of stud 14 to hold nut 10 and stud 14 assembled.

Fig. 8 shows substantially the same construction as Fig. 5, but the swaging at the bottom of stud 14 has been replaced by screw 30 fitting into a bottom threaded cavity in stud 14.

Fig. 9 shows substantially the same as Fig. 8, but stud 14 has bee...