Patent US3744355A successfully refreshed from Google Patents.
US3744355A
Expired / Lapsed
US
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Multiple spindle lathe
Assignee: Eunipp AG
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Filing: 1970-11-27
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Granted: 1973-07-10
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Expires: 1990-11-27
Abstract
Abstract Multiple spindle automatic lathe having two tool slides associated with each spindle position for radial movement relative the spindle axis.
Inventors
- 👤 H Flisch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:25
CPC Classifications
B; B23; B23B; B23B9/00; B23B9/02; Y; Y10; Y10T; Y10T82/00; Y10T82/13; Y10T82/135; Y10T82/25; Y10T82/2524; Y10T82/2531; Y10T82/2541; Y10T82/2543
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
135 words
In a multi-spindle automatic lathe having the spindles carried generally cylindrically in a rotatable spindle carrier drum for indexing to a plurality of spindle positions, the improvement comprising a pair of transverse tool slides mounted adjacent each spindle position independent of said carrier drum beyond the range of displacement of the rotating spindles and common slide moving means for moving all of said slides radially of the respective spindle axes simultaneously wherein said common slide moving means comprises a rotatable shaft extending generally parallel the spindle axis associated with each of said pairs of tool slides and a pair of rocker arms carried by each rotatable shaft having a portion connected, respectively, with each of said slides to move said slides upon rotation thereof and common drive means for simultaneously rotating all of said shafts.
Claim 2
Dependent Claim
135 words
In a multi-spindle automatic lathe having the spindles carried generally cylindrically in a rotatable spindle carrier drum for indexing to a plurality of spindle positions, the improvement comprising a pair of transverse tool slides mounted adjacent each spindle position independent of said carrier drum beyond the range of displacement of the rotating spindles and common slide moving means for moving all of said slides radially of the respective spindle axes simultaneously wherein said common slide moving means comprises a rotatable shaft extending generally parallel the spindle axis associated with each of said pairs of tool slides and a pair of rocker arms carried by each rotatable shaft having a portion connected, respectively, with each of said slides to move said slides upon rotation thereof and common drive means for simultaneously rotating all of said shafts.
Claim 3
Dependent Claim
58 words
Lathe defined in claim 1 wherein one of said pairs of rocker arms comprises one rocker arm portion for urging one of said slides inwardly of the spindle axis upon rotation in one direction and a second rocker arm portion for urging the other of said slides outwardly of the spindle axis upon rotation in the same direction.
Claim 4
Dependent Claim
60 words
Lathe defined in claim 2 wherein said moving means further comprises a first spring operating radially outwardly and operatively connected with said one slide for urging said slide outwardly against said one rocking arm portion and a second spring directed inwardly and operatively connected with said other slide for urging said other slide inwardly against said second rocker arm portion.
Claim 5
Dependent Claim
29 words
Lathe defined in claim 3 further comprising adjustable stop means arranged on said slides and fixed stationary stops for engagement thereby to limit inward movement of said other slide.
Claim 6
Dependent Claim
42 words
Lathe defined in claim 1 wherein one of said pairs of rocker arms comprises generally opposed rocker arm portions connected with the respective slides for alternately urging each of said slides radially inwardly of the spindles upon rotation thereof in opposite directions.
Claim 7
Dependent Claim
36 words
Lathe defined in claim 5 wherein said moving means further comprises a pair of spRings operative radially outwardly and operatively connected with each of said slides for urging said slides outwardly against said rocker arm portions.
Claim 8
Dependent Claim
42 words
Lathe defined in claim 1 wherein one of said pairs of rocker arms comprises generally opposed rocker arm portions connection with the respective slides for alternately urging each of said slides radially outwardly of the spindles upon rotation thereof in opposite directions.
Claim 9
Dependent Claim
36 words
Lathe defined in claim 7 wherein said moving means further comprises a pair of springs operative radially inwardly and operatively connected with each of said slides for urging said slides inwardly against said rocker arm portions.
Claim 10
Dependent Claim
35 words
Lathe defined in claim 8 further comprising adjustable stop means operatively associated with said slides and fixed stationary stop means for engagement thereby for limiting inward movement of said slides under urging of said springs.
Claim 11
Dependent Claim
91 words
Lathe defined in claim 1 wherein said common drive means comprises a ring gear rim extending generally concentrically around the spindle carrier drum, gear means for driving said ring gear rim, cam and follower means connected with each of said shafts for providing rotation thereof and pinion gear means operatively coupling said cams and ring gear rim for movement thereby so that rotation of said ring gear rim provides simultaneous rotation of said cams to produce simultaneous rotation of said shafts and rocker arms and reciprocating movement of said slides therefrom.
Claim 12
Dependent Claim
17 words
Lathe defined in claim 10 wherein said cam follower means comprises a face cam and roller follower.
Claim 13
Dependent Claim
18 words
Lathe defined in claim 11 wherein said gear ring rim is rotatably carried by the spindle carrier drum.
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) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |