Patent US642039A successfully refreshed from Google Patents.
Patent US4438555A successfully refreshed from Google Patents.
US4438555A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of fixing an annular element on a shaft
Assignee: Toyota Motor Corp
•
Filing: 1982-03-09
•
Granted: 1984-03-27
•
Expires: 2002-03-09
Abstract
Abstract The present invention relates to a method for fixing an annular element onto a shaft. The shaft may be a camshaft and the annular element may be a cam piece or a journal piece used in an automobile. The annular element is fixed onto the shaft by: engaging an axially extending projection of the element with an axially extending groove of the shaft so as to prevent a relative rotating motion; deforming an outer wall of the shaft adjacent to said groove at two positions near the terminating ends of the projection so that the outer wall protrudes into the groove, thereby fixing the element onto the shaft.
Inventors
- 👤 Chiaki Tsumuki
- 👤 Katsuhiko Ueda
- 👤 Hitoshi Nakamura
- 👤 Toshiyuki Nakura
- 👤 Kazuhiko Tsuda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:50
CPC Classifications
B; B23; B23P; B23P11/00; B23P2700/00; B23P2700/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49229; Y10T29/49293; Y10T29/49826; Y10T29/49908; Y10T29/49915; Y10T403/00; Y10T403/49; Y10T74/00; Y10T74/21; Y10T74/2101
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
149 words
Method for fixing an annular element onto a shaft, said element having a through hole into which said shaft is loosely inserted, said method comprising the steps of: forming an axially extending groove on an outer wall of said shaft and forming an axially extending projection on an inner surface of said hole of said element over the whole length thereof, said groove and said projection having respective cross sections being adapted so as to loosely fit together; inserting said shaft into said hole while engaging said projection with said groove so as to prevent a relative rotating motion; and after determining the axial position of said element relative to said shaft, deforming said outer wall of said shaft adjacent to said groove at two positions near the terminating ends of said projection so that said outer wall protrudes into said groove, thereby fixing said element onto said shaft.
Claim 2
Dependent Claim
149 words
Method for fixing an annular element onto a shaft, said element having a through hole into which said shaft is loosely inserted, said method comprising the steps of: forming an axially extending groove on an outer wall of said shaft and forming an axially extending projection on an inner surface of said hole of said element over the whole length thereof, said groove and said projection having respective cross sections being adapted so as to loosely fit together; inserting said shaft into said hole while engaging said projection with said groove so as to prevent a relative rotating motion; and after determining the axial position of said element relative to said shaft, deforming said outer wall of said shaft adjacent to said groove at two positions near the terminating ends of said projection so that said outer wall protrudes into said groove, thereby fixing said element onto said shaft.
Claim 3
Dependent Claim
17 words
Method according to claim 1, wherein said outer wall is deformed on one side of said groove.
Claim 4
Dependent Claim
14 words
Method according to claim 2, wherein a tool having a bevelled edge is used.
Claim 5
Dependent Claim
17 words
Method according to claim 1, wherein said outer wall is deformed on both sides of said groove.
Claim 6
Dependent Claim
14 words
Method according to claim 4, wherein a tool having a V-shaped edge is used.
References Cited (Backward Citations)
US72409A
Cited
US250219A
Cited
US515954A
Cited
US942039A
Cited
US1157666A
Cited
US1397848A
Cited
US1562396A
Cited
US1815517A
Cited
US2164547A
Cited
US3619882A
Cited
US4090709A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-03-27 | 1987-09-26 | 1988-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-03-27 | 1991-09-26 | 1992-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-03-27 | 1995-09-26 | 1996-03-27 | $7700.00 | Window Closed / Lapsed |