US3746412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self adjusting nut assembly for wheel retainment
Assignee: Motors Liquidation Co
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Filing: 1971-07-06
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Granted: 1973-07-17
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Expires: 1991-07-06
Abstract
Abstract A self-adjusting nut assembly used to adjust the race-bearing relationship in a vehicle front wheel assembly in order to eliminate radial and axial play between the hub and the spindle of the wheel assembly, the nut assembly comprising a nut having integral camming ramps on its inboard face which cooperate with similar camming ramps on an interior member slidably mounted on the wheel spindle, the interior member being maintained in assembly with the nut within a shroud with a coil spring secured to the nut and the interior member to produce the desired rotational movement between the nut and the interior member which results in these elements being spread apart.
Inventors
- 👤 C Hay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:56
CPC Classifications
F; F16; F16C; F16C25/00; F16C25/06; F16C25/08; F16C19/00; F16C19/22; F16C19/34; F16C19/36; F16C19/364; F16C19/54; F16C19/546; F16C19/547; F16C19/548; F16C2326/00; F16C2326/01; F16C2326/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
246 words
In a wheel assembly having a nonrotatable spindle threaded at its outboard end, an inboard bearing means and an outboard bearing means mounted on said spindle, a wheel hub rotatably supported on said spindle by said bearings, a thrust retaining washer slidably positioned on said spindle for abutment against said outboard bearing means and a self-adjusting nut assembly threaded to said spindle for adjusting the axial position of said outboard bearing on said spindle, said self-adjusting nut assembly comprising an interior member in the form of a cam faced collar slidably and rotatably mountable on said spindle, a nut means threadingly engagable on said spindle outboard of said interior member, said nut means including an annular retaining means positioned to engage a portion of said spindle to limit the axial position of said nut means on said spindle, said nut means having cam surfaces adapted to cooperate with said cam faced collar of said interior member, spring means partially encircling said interior member and said nut means witH one end of said spring engaging said interior member and the opposite end of said spring engaging said nut means to normally rotatively bias said interior member relative to said nut means in an up-cam-ramp direction and, shroud means loosely encircling said interior member, said spring and said nut means with means on said shroud to engage said interior member and said nut means to limit the axial separation of said nut means relative to said interior member.
Claim 2
Dependent Claim
246 words
In a wheel assembly having a nonrotatable spindle threaded at its outboard end, an inboard bearing means and an outboard bearing means mounted on said spindle, a wheel hub rotatably supported on said spindle by said bearings, a thrust retaining washer slidably positioned on said spindle for abutment against said outboard bearing means and a self-adjusting nut assembly threaded to said spindle for adjusting the axial position of said outboard bearing on said spindle, said self-adjusting nut assembly comprising an interior member in the form of a cam faced collar slidably and rotatably mountable on said spindle, a nut means threadingly engagable on said spindle outboard of said interior member, said nut means including an annular retaining means positioned to engage a portion of said spindle to limit the axial position of said nut means on said spindle, said nut means having cam surfaces adapted to cooperate with said cam faced collar of said interior member, spring means partially encircling said interior member and said nut means witH one end of said spring engaging said interior member and the opposite end of said spring engaging said nut means to normally rotatively bias said interior member relative to said nut means in an up-cam-ramp direction and, shroud means loosely encircling said interior member, said spring and said nut means with means on said shroud to engage said interior member and said nut means to limit the axial separation of said nut means relative to said interior member.
Claim 3
Dependent Claim
56 words
In a wheel assembly according to claim 1 wherein said nonrotatable spindle is provided with a shoulder adjacent its outboard threaded end, and wherein said nut means of said self-adjusting nut assembly is provided with a stepped bore to form an internal shoulder defining said annular retaining means for abutment against said shoulder on said spindle.
Claim 4
Dependent Claim
47 words
In a wheel assembly according to claim 1 wherein said nut means of said self-adjusting nut assembly is provided with a radially inward extending annular flange at is outboard end defining said annular retaining means and adapted to abut against the outboard threaded end of said spindle.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-16 | 1977-01-15 | 1977-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-16 | 1981-01-15 | 1981-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-16 | 1985-01-15 | 1985-07-17 | $7700.00 | Window Closed / Lapsed |