Patent US4213660A successfully refreshed from Google Patents.
US4213660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bearing assembly construction
Assignee: Toyota Motor Corp
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Filing: 1979-02-12
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Granted: 1980-07-22
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Expires: 1999-02-12
Abstract
Abstract In an axle box structure of soft metal such as aluminum alloy including a bearing bore, a sleeve member of hard metal such as iron pressedly engaged within the bearing bore, and a rolling bearing assembled within the sleeve member to support an axle shaft thereon, the sleeve member has on its outer periphery an axial knurl or serration to be embedded in the axle box structure, the knurl or serration being annularly formed with a predetermined axial length substantially at the central portion of the sleeve member such that the crest diameter of the knurl or serration is larger than the outer diameter of the sleeve member and that the root diameter of the knurl or serration is smaller than the outer diameter of the sleeve member.
Inventors
- 👤 Yasuyosi Yasui
- 👤 Mitugu Izuta
- 👤 Sigeki Okaguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:08
CPC Classifications
F; F16; F16C; F16C19/00; F16C19/22; F16C19/34; F16C19/36; F16C19/364; F16C19/54; F16C19/546; F16C19/547; F16C19/548; F16C35/00; F16C35/04; F16C35/06; F16C35/07; F16C35/077; F16C2361/00; F16C2361/61; F16H; F16H1/00; F16H1/02; F16H1/04; F16H1/12; F16H1/14; Y; Y10; Y10S; Y10S29/00; Y10S29/023; Y10S384/00; Y10S384/90; Y10S384/903; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49945
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
127 words
In an axle box structure of soft metal including a bearing bore, a sleeve member of hard metal engaged within said bearing bore, and a rolling bearing assembled within said sleeve member to support an axle shaft thereon, the improvement wherein said sleeve member has on a portion of its outer periphery an axial knurl or serration means for embedding in said axle box structure, said knurl or serration means being annularly formed in a predetermined axial length substantially at the central portion of said sleeve member wherein the crest diameter of said knurl or serration means is larger than the outer diameter of said sleeve member and the root diameter of said knurl or serration means is smaller than the outer diameter of said sleeve member.
Claim 2
Dependent Claim
127 words
In an axle box structure of soft metal including a bearing bore, a sleeve member of hard metal engaged within said bearing bore, and a rolling bearing assembled within said sleeve member to support an axle shaft thereon, the improvement wherein said sleeve member has on a portion of its outer periphery an axial knurl or serration means for embedding in said axle box structure, said knurl or serration means being annularly formed in a predetermined axial length substantially at the central portion of said sleeve member wherein the crest diameter of said knurl or serration means is larger than the outer diameter of said sleeve member and the root diameter of said knurl or serration means is smaller than the outer diameter of said sleeve member.
Claim 3
Dependent Claim
27 words
The improvement as claimed in claim 1, wherein said sleeve member includes on its inner end an annular flange means for assembling said rolling bearing in position.
Claim 4
Dependent Claim
24 words
The improvement as claimed in claim 2, wherein said sleeve member includes on the inner end of its outer periphery an annular tapered surface.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-07-22 | 1984-01-21 | 1984-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-07-22 | 1988-01-21 | 1988-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-07-22 | 1992-01-21 | 1992-07-22 | $7700.00 | Window Closed / Lapsed |