US4847950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self retained axle pin assembly for shear application
Assignee: Von Duprin LLC
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Filing: 1988-05-20
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Granted: 1989-07-18
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Expires: 2008-05-20
Abstract
Abstract The assembly comprises two, snap-together pieces which, following their clinched or latched engagement, are freely rotatable relative to each other. One of the two pieces comprises a sleeve which has an inner annular land, and the other of the two pieces comprises a rod having flexible extending fingers which terminate in outwardly-directed, land-engaging and latching lugs. The rod is slid into the sleeve, with the lug-ended fingers entering first, and, consequently, the fingers are resiliently forced inwardly until the lugs reach the land. Then the fingers spring outwardly while the lugs latch onto the land. This latching together of the pieces requires no tools.
Inventors
- 👤 Michael D. Coleman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:22
CPC Classifications
E; E05; E05D; E05D5/00; E05D5/10; E05D5/12; E05D5/125; E05D7/00; E05D7/10; E05D7/1005; E05D7/1022; E05D2005/102; E05D2005/108; Y; Y10; Y10T; Y10T24/00; Y10T24/50; Y10T403/00; Y10T403/60
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
208 words
A self retained two piece axle assembly, for use as a pivot pin, or hinge pin, comprising: a bearing forming an axle in the form of a hollow cylinder sleeve and having a bearing surface thereon; said sleeve having means defining a land at its one end; and a rod for substantially full length disposal within said sleeve via the other end of said sleeve; said rod having means for (a) latchingly engaging said land and thereby, (b) interlocking said sleeve and said rod; said sleeve and said rod each have an enlarged head; said head of said sleeve confines said land therewithin; and said sleeve has an inside diameter of a given dimension; and said rod has an outside diameter of substantially said given dimension for close diametral fit; said rod having said means for latchingly engaging said land at its one end and said enlarged head at its other end, whereupon in a locked assembly said sleeve being in close proximity to but spaced from said enlarged head said enlarged head on said sleeve and said enlarged head on said rod confine said bearing surface therebetween with said sleeve and said rod being freely rotatable relative to each other and said bearing surface being internally reinforced.
Claim 2
Dependent Claim
208 words
A self retained two piece axle assembly, for use as a pivot pin, or hinge pin, comprising: a bearing forming an axle in the form of a hollow cylinder sleeve and having a bearing surface thereon; said sleeve having means defining a land at its one end; and a rod for substantially full length disposal within said sleeve via the other end of said sleeve; said rod having means for (a) latchingly engaging said land and thereby, (b) interlocking said sleeve and said rod; said sleeve and said rod each have an enlarged head; said head of said sleeve confines said land therewithin; and said sleeve has an inside diameter of a given dimension; and said rod has an outside diameter of substantially said given dimension for close diametral fit; said rod having said means for latchingly engaging said land at its one end and said enlarged head at its other end, whereupon in a locked assembly said sleeve being in close proximity to but spaced from said enlarged head said enlarged head on said sleeve and said enlarged head on said rod confine said bearing surface therebetween with said sleeve and said rod being freely rotatable relative to each other and said bearing surface being internally reinforced.
Claim 3
Dependent Claim
26 words
An axle assembly, according to claim 1, wherein said engaging and interlocking means comprises an elongate, flexible finger; and said finger has means defining a latch.
Claim 4
Dependent Claim
19 words
An axle assembly, according to claim 2, wherein: said engaging and interlocking means comprises a plurality of said fingers.
Claim 5
Dependent Claim
16 words
An axle assembly, according to claim 3, wherein: said fingers lie in parallel with spaces therebetween.
Claim 6
Dependent Claim
27 words
An axle assembly, according to claim 4, wherein: each of said fingers has a terminal lug with (a) an outwardly-facing, tapered exterior, and (b) a sectored shoulder.
Claim 7
Dependent Claim
40 words
An axle assembly, according to claim 5, further including: a separator for unlatching said rod from said sleeve; wherein said separator has means for (a) engaging said tapered exteriors of said lugs, and (b) moving said lugs toward each other.
Claim 8
Dependent Claim
25 words
An axle assembly, according to claim 6, wherein: said engaging and moving means of said separator comprises a conical recess formed in an end thereof.
Claim 9
Dependent Claim
45 words
An axle assembly, according to claim 1, wherein: said sleeve has an inside diameter surface; said head of said sleeve comprises a hollow shell having a circular, inner wall; and said land (a) is of annular conformation, and (b) joins said wall and said surface.
Claim 10
Dependent Claim
48 words
An axle assembly, according to claim 1, wherein: said rod has a shank, intermediate said enlarged head at an end thereof and said engaging and interlocking means, of a given length; and said sleeve has a shank, extending from said land-confining head thereof, of substantially said given length.
Claim 11
Dependent Claim
27 words
An axle assembly, according to claim 1, wherein: said heads are of common outside diameter, of common depth or axial extent, and have a common, beveled edge.
Claim 12
Dependent Claim
18 words
An axle assembly, according to claim 1, further including: a separator for unlatching said rod from said sleeve.
Claim 13
Dependent Claim
27 words
An axle assembly, according to claim 11, wherein: said separator has means for interpositioning thereof between said sleeve and said engaging and interlocking means of said rod.
Claim 14
Dependent Claim
26 words
An axle assembly, according to claim 11, wherein: said separator has means for displacing said engaging and interlocking means of said rod relative to said sleeve.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-07-17 | 1993-01-16 | 1993-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-17 | 1997-01-16 | 1997-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-17 | 2001-01-16 | 2001-07-18 | $7700.00 | Window Closed / Lapsed |