Patent US3703089A successfully refreshed from Google Patents.
US3703089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detachable coupling device for torque transmitting shafts
Assignee: Walterscheid GmbH
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Filing: 1971-07-12
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Granted: 1972-11-21
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Expires: 1991-07-12
Abstract
Abstract A coupling device comprises a conical coupling element on one shaft which is inserted into a tapered opening in the end of a yoke element extending from a universal joint connected to another shaft. The outer surface of the conical element has an annular groove in which are positioned two semi-circular blocking members pivotally mounted on the open end of the yoke element and having bent ends extending outwardly through openings in the yoke element. Spring means urge the blocking members inwardly into the groove to retain the coupling elements in driving relationship. A protective housing surrounding the conical coupling element has a lever pivotally mounted thereon which is operatively connected to a cylindrical slide element having an inner conical surface engageable with the projecting ends of the blocking members to release the blocking members from locking engagement with the conical coupling element.
Inventors
- 👤 Hubert Geisthoff
- 👤 Hans-Heinrich Welschof
- 👤 Hubert Grosse-Entrup
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:11
CPC Classifications
F; F16; F16D; F16D1/00; F16D1/10; F16D1/108; F16D1/116; F16D3/00; F16D3/16; F16D3/26; F16D3/38; F16D3/382; F16D3/387; Y; Y10; Y10S; Y10S464/00; Y10S464/901
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
122 words
In a detachable coupling device for the coaxial connection of torque transmitting shafts, the combination of a first shaft, a conical first coupling element having an external annular groove therein mounted on said first shaft, a second shaft having a second coupling element mounted on the end thereof, said second coupling element having an open end with a conical opening therein for receiving said first conical coupling element in driving relationship, there being openings in said second coupling element, blocking means pivotally mounted within said second coupling element, said blocking means having bent ends projecting through said openings, and spring means urging said blocking means into locking engagement with said first coupling element groove when said coupling elements are in driving relationship.
Claim 2
Dependent Claim
122 words
In a detachable coupling device for the coaxial connection of torque transmitting shafts, the combination of a first shaft, a conical first coupling element having an external annular groove therein mounted on said first shaft, a second shaft having a second coupling element mounted on the end thereof, said second coupling element having an open end with a conical opening therein for receiving said first conical coupling element in driving relationship, there being openings in said second coupling element, blocking means pivotally mounted within said second coupling element, said blocking means having bent ends projecting through said openings, and spring means urging said blocking means into locking engagement with said first coupling element groove when said coupling elements are in driving relationship.
Claim 3
Dependent Claim
122 words
In a detachable coupling device for the coaxial connection of torque transmitting shafts, the combination of a first shaft, a conical first coupling element having an external annular groove therein mounted on said first shaft, a second shaft having a second coupling element mounted on the end thereof, said second coupling element having an open end with a conical opening therein for receiving said first conical coupling element in driving relationship, there being openings in said second coupling element, blocking means pivotally mounted within said second coupling element, said blocking means having bent ends projecting through said openings, and spring means urging said blocking means into locking engagement with said first coupling element groove when said coupling elements are in driving relationship.
Claim 4
Dependent Claim
122 words
In a detachable coupling device for the coaxial connection of torque transmitting shafts, the combination of a first shaft, a conical first coupling element having an external annular groove therein mounted on said first shaft, a second shaft having a second coupling element mounted on the end thereof, said second coupling element having an open end with a conical opening therein for receiving said first conical coupling element in driving relationship, there being openings in said second coupling element, blocking means pivotally mounted within said second coupling element, said blocking means having bent ends projecting through said openings, and spring means urging said blocking means into locking engagement with said first coupling element groove when said coupling elements are in driving relationship.
Claim 5
Dependent Claim
42 words
In a detachable coupling device as claimed in claim 1 wherein said second shaft has a first yoke member of a universal joint mounted on the end thereof and a second yoke member of said universal joint defining said second coupling element.
Claim 6
Dependent Claim
110 words
In a detachable coupling device as claimed in claim 2 and comprising a cup-shaped housing mounted concentrically to said first shaft and extending beyond the end thereof, a cylindrical element slideably mounted within said housing for axial displacement therein and having an internal conical surface on the end thereof directed toward the open end of the housing, and a lever pivotally mounted on said housing and operatively connected to said slideable cylindrical element so that axial displacement of said slideable element will cause the conical surface therein to engage the bent ends of said blocking means to pivot the blocking means out of engagement from said first coupling element groove.
Claim 7
Dependent Claim
62 words
In a detachable coupling device as claimed in claim 3 wherein one end of said lever is bifurcated with the bifurcated portions straddling said housing, inwardly directed pins on the ends of the bifurcated portions, there being longitudinal slots in the housing with said pins passing therethrough, said cylindrical slide element having an annular groove therein receiving the ends of said pins.
Claim 8
Dependent Claim
35 words
In a detachable coupling device as claimed in claim 4 wherein said housing is rotatably mounted around said first shaft, and spring-loaded locking bolt means engageable with said lever for locking said lever in position.
Claim 9
Dependent Claim
38 words
In a detachable coupling device as claimed in claim 5 and comprising a second cup-shaped housing rotatably mounted on said second shaft and extending over said universal joint to overlap said first housing when the shafts are coupled.
References Cited (Backward Citations)
FR1560109A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-11-21 | 1976-05-22 | 1976-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-21 | 1980-05-22 | 1980-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-21 | 1984-05-22 | 1984-11-21 | $7700.00 | Window Closed / Lapsed |