US3561799A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detent fastener
Assignee: Individual
•
Filing: 1969-08-13
•
Granted: 1971-02-09
•
Expires: 1989-08-13
Abstract
Abstract A detent fastener for releasably holding together two structural parts, such as spindle and a wheel member mounted thereon having a hub provided with an axial spindle-receiving opening. The fastener comprises a generally U-shaped spring wire clip for interlocking engagement in grooves provided in the axial opening and sides of the wheel hub, and includes a yieldable springloaded detent pin portion for releasable snap engagement in a transverse diametric hole provided in the spindle, whereby the wheel member is held against both axial and rotational movement relative to the spindle. Means is provided for manually retracting the detent pin portion from the spindle hole without the use of tools to enable removal of the wheel member from the spindle.
Inventors
- 👤 Francis M Hutchinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:41
CPC Classifications
F; F16; F16H; F16H57/00; F16H57/0018; F16H57/0025; F16D; F16D1/00; F16D1/06; F16D1/08; F16D1/0894; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/948; Y10T; Y10T403/00; Y10T403/70; Y10T403/7018; Y10T403/7021; Y10T403/7075; Y10T403/7077
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
179 words
A detent fastener, for releasably holding a wheellike member upon a spindle, said member having a hub provided with an axial spindle-receiving passage and side surfaces at the ends of said passage, and said spindle having a detent-receiving formation, said fastener comprising a formed spring wire clip of generally U-shap including a bight portion for engagement with the wall of said hub passage, a pair of leg portions for engagement with said hub side surfaces, and a detent pin portion for engagement in said detent-receiving formation of said spindle, one said leg portion being bent upwardly in vertically extending relation from one end of said bight portion, said pin portion comprising a first part bent downwardly from the other end of said bight portion and a second part bent vertically upward from and upon said first part, and the other said leg portion being a vertical upward extension of said second part of said detent pin portion, and a finger grip means comprising an outwardly and downwardly bent extension of the upper end of the other said leg portion.
Claim 2
Dependent Claim
179 words
A detent fastener, for releasably holding a wheellike member upon a spindle, said member having a hub provided with an axial spindle-receiving passage and side surfaces at the ends of said passage, and said spindle having a detent-receiving formation, said fastener comprising a formed spring wire clip of generally U-shap including a bight portion for engagement with the wall of said hub passage, a pair of leg portions for engagement with said hub side surfaces, and a detent pin portion for engagement in said detent-receiving formation of said spindle, one said leg portion being bent upwardly in vertically extending relation from one end of said bight portion, said pin portion comprising a first part bent downwardly from the other end of said bight portion and a second part bent vertically upward from and upon said first part, and the other said leg portion being a vertical upward extension of said second part of said detent pin portion, and a finger grip means comprising an outwardly and downwardly bent extension of the upper end of the other said leg portion.
Claim 3
Dependent Claim
24 words
A detent fastener according to claim 1 wherein said clip is a length of wire of noncircular cross section and flat at one side.
Claim 4
Dependent Claim
32 words
A detent fastener according to claim 2 wherein said length of wire has a flat side coinciding with the diameter of a circle and a rounded side coinciding with a half circle.
Claim 5
Dependent Claim
45 words
A detent fastener according to claim 2 wherein the flat side of said bight is upwardly disposed, the flat sides of said leg portions are inwardly disposed and the flat sides of said detent forming first and second parts are in contact with each other.
Claim 6
Dependent Claim
169 words
The combination of a wheel member, a spindle, and a detent fastener releasably fastening said wheel member and spindle together, said wheel member having a hub provided with an axial spindle-receiving passage and side surfaces at the ends of said pAssage, said spindle having a detent receiving formation, and said fastener comprising a formed spring wire clip of generally U-shape including a bight portion for engagement with the wall of said hub passage, a pair of leg portions for engagement with said hub side surfaces, and a detent pin portion for engagement in said detent receiving formation of said spindle, there being a groove extending axially of said hub passage for receiving the bight of said fastener, and radial grooves in said hub side surfaces extending from the ends of said axial passage for receiving the legs of said fastener, and there being a clearance space between said axial groove and said detent-receiving formation to permit flexing of said bight and retraction of said detent portion from said formation.
Claim 7
Dependent Claim
169 words
The combination of a wheel member, a spindle, and a detent fastener releasably fastening said wheel member and spindle together, said wheel member having a hub provided with an axial spindle-receiving passage and side surfaces at the ends of said pAssage, said spindle having a detent receiving formation, and said fastener comprising a formed spring wire clip of generally U-shape including a bight portion for engagement with the wall of said hub passage, a pair of leg portions for engagement with said hub side surfaces, and a detent pin portion for engagement in said detent receiving formation of said spindle, there being a groove extending axially of said hub passage for receiving the bight of said fastener, and radial grooves in said hub side surfaces extending from the ends of said axial passage for receiving the legs of said fastener, and there being a clearance space between said axial groove and said detent-receiving formation to permit flexing of said bight and retraction of said detent portion from said formation.
Claim 8
Dependent Claim
28 words
The invention according to claim 5 wherein said grooves have flat bottoms and the bight and legs of said fastener have flat sides engaged with said flat bottoms.
Claim 9
Dependent Claim
30 words
The invention according to claim 5 wherein one end portion of said axial groove is curved upwardly and merges with the radial groove in one side surface of said hub.
Claim 10
Dependent Claim
27 words
The invention according to claim 7 wherein said upwardly curved portion is vertically aligned with said detent pin portion of said fastener to provide said clearance space.
Claim 11
Dependent Claim
23 words
A detent fastener according to claim 1 further characterized by a second detent pin portion laterally spaced from said first detent pin portion.
Claim 12
Dependent Claim
56 words
The detent fastener according to claim 9 wherein said detent pin portions each comprise a first part bent downwardly from an end of said bight portion and a second part bent upwardly from and upon said first part, and said leg portions are respectively upward extensions of said second parts of said respective detent pin portions.
Claim 13
Dependent Claim
20 words
A detent fastener according to claim 10 wherein each said leg portion has a fingergrip means at its upper end.
Claim 14
Dependent Claim
43 words
The invention according to claim 5 wherein said fastener is provided with a second detent pin portion laterally spaced from said first detent pin portion and said spindle is provided with a second detent receiving formation for receiving said second detent pin portion.
References Cited (Backward Citations)
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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) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |