US3575015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Splined shaft connection
Assignee: Walterscheid GmbH
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Filing: 1969-06-18
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Granted: 1971-04-13
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Expires: 1989-06-18
Abstract
Abstract A shaft has external splines on an end thereof which interfit with internal splines formed in a socket in the end of a second shaft. At least one land of the external splines has a beveled end with the other land ends being square. A spring-loaded pin projects through a radial bore between lands of the internal splines. The pin functions as a spring detent and assures the correct angular relationship in assembling the splined shafts.
Inventors
- 👤 Hubert Geisthoff
- 👤 Hans-Heinrich Welschof
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:11
CPC Classifications
A; A01; A01B; A01B71/00; F; F16; F16D; F16D1/00; F16D1/10; F16D1/101; F16D2001/103; F16D2300/00; F16D2300/20
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
179 words
A splined shaft connection to provide a predetermined angular relationship in the connection between two shafts comprising a first shaft having external splines on an end thereof, a second shaft having a socket in an end thereof with internal splines for interfitting with said external splines, one of said first and second shafts having a beveled end on one of the lands of its splined end and the ends of the remaining lands thereof being square, the other of said shafts having square ends on all of the lands of its splined end, a radial bore between the lands of said other shaft splines near the end of the shaft, and a springloaded pin in said radial bore projecting between the lands of the splined end a distance such as to block a square-ended land of a spline on said one shaft but permitting the beveled-ended land thereof to cam the pin radially outwardly so that the splined ends of said one and said other shafts are interfitted in a predetermined angular relationship upon each connection of the shafts.
Claim 2
Dependent Claim
179 words
A splined shaft connection to provide a predetermined angular relationship in the connection between two shafts comprising a first shaft having external splines on an end thereof, a second shaft having a socket in an end thereof with internal splines for interfitting with said external splines, one of said first and second shafts having a beveled end on one of the lands of its splined end and the ends of the remaining lands thereof being square, the other of said shafts having square ends on all of the lands of its splined end, a radial bore between the lands of said other shaft splines near the end of the shaft, and a springloaded pin in said radial bore projecting between the lands of the splined end a distance such as to block a square-ended land of a spline on said one shaft but permitting the beveled-ended land thereof to cam the pin radially outwardly so that the splined ends of said one and said other shafts are interfitted in a predetermined angular relationship upon each connection of the shafts.
Claim 3
Dependent Claim
41 words
In a splined shaft connection as claimed in claim 1 wherein said first shaft has a beveled end on a land of its external splines and said second shaft has said bore and spring-loaded pin between lands of its internal splines.
Claim 4
Dependent Claim
38 words
A splined shaft connection as claimed in claim 2 and comprising a peripheral groove around said second shaft through said radial bore, and a spring bale within said groove and having a bent end inserted into said bore.
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) | 1974-04-12 | 1974-10-12 | 1975-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-12 | 1978-10-12 | 1979-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-12 | 1982-10-12 | 1983-04-13 | $7700.00 | Window Closed / Lapsed |