Patent US3625554A successfully refreshed from Google Patents.
US3625554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for rapid fixing of a tool to the end of a rotating shaft
Assignee: Airbus Group SAS
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Filing: 1970-02-27
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Granted: 1971-12-07
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Expires: 1990-02-27
Abstract
Abstract The invention is concerned with a device for the rapid fixing and releasing of a tool such as a countersink to the end of a rotating shaft. In accordance with the invention the tool has a transverse bore having an internal projection. A resilient device is provided within the bore and the shaft has a facet on which the resilient device can bear.
Inventors
- 👤 Jean Oliver Louis Mottais
- 👤 Jean-Pierre Yves Maratray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:41
CPC Classifications
B; B23; B23B; B23B51/00; B23B51/10; B23B51/102; B23B31/00; B23B31/02; B23B31/10; B23B31/113; F; F16; F16B; F16B2200/00; F16B2200/69; F16B2200/71; Y; Y10; Y10T; Y10T403/00; Y10T403/16; Y10T403/1616; Y10T403/1624; Y10T403/70; Y10T403/7018; Y10T403/7075; Y10T403/7077; Y10T403/7079; Y10T403/7083; Y10T403/7098
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
152 words
Means for the rapid fixing of a centrally bored tool to the end of a unidirectionally rotating shaft, the tool having transversely of its bore a keylike internal projection extending along a first chord of the bore and the shaft engaging said bore having, extending from its end, a facet and, along the facet edge which is at the rear as considered in the normal direction of shaft rotation, a recess shaped to match the key, the improvement that the tool has, axially offset from said key, a transverse resilient member, the active portion of which is substantially directed along a second chord of said bore and the terminal part of the shaft has a chamfer which intersects the end of the facet edge opposite to said facet edge formed with the recess, the angular offset between the recess base and the facet corresponding to the angular offset between the two chords.
Claim 2
Dependent Claim
152 words
Means for the rapid fixing of a centrally bored tool to the end of a unidirectionally rotating shaft, the tool having transversely of its bore a keylike internal projection extending along a first chord of the bore and the shaft engaging said bore having, extending from its end, a facet and, along the facet edge which is at the rear as considered in the normal direction of shaft rotation, a recess shaped to match the key, the improvement that the tool has, axially offset from said key, a transverse resilient member, the active portion of which is substantially directed along a second chord of said bore and the terminal part of the shaft has a chamfer which intersects the end of the facet edge opposite to said facet edge formed with the recess, the angular offset between the recess base and the facet corresponding to the angular offset between the two chords.
Claim 3
Dependent Claim
24 words
The invention according to claim 1, wherein one end surface of the tool is provided with a flat-bottomed recess receiving said transverse resilient member.
Claim 4
Dependent Claim
71 words
The invention according to claim 2, wherein said tool is provided, level with said recess bottom, with an outer peripheral groove connected with said recess by a radial notch, and wherein the active portion of the transverse resilient member is the inwardly bent end of a resilient metal wire, the other part of said wire being open ring shaped and located in said groove with the bent end engaging said notch.
Claim 5
Dependent Claim
37 words
The invention according to claim 2, wherein said resilient member is a rectilinear thin metal member directed along said second chord, the ends of the said member engaging holes provided in the peripheral wall of said recess.
Claim 6
Dependent Claim
30 words
The invention according to claim 2, wherein the tool is a draw countersink and the recess is contrived in that side of the tool which is near the shaft end.
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) | 1974-12-06 | 1975-06-07 | 1975-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-06 | 1979-06-07 | 1979-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-06 | 1983-06-07 | 1983-12-07 | $7700.00 | Window Closed / Lapsed |