US5197346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Articulated robot with two forearms
Assignee: Comau SpA
•
Filing: 1992-01-29
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Granted: 1993-03-30
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Expires: 2012-01-29
Abstract
Abstract An articulated robot has an arm and two forearms which are articulated to the arm about the same axis and controlled by an independent means.
Inventors
- 👤 Mauro Zona
- 👤 Marco Bettinardi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:02
CPC Classifications
B; B25; B25J; B25J9/00; B25J9/02; B25J9/04; B25J9/041; B25J9/042; B25J18/00; B25J18/02; B25J18/025; B25J9/0084; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20207; Y10T74/20305; Y10T74/20317
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
112 words
An articulated robot including an arm having a distal end, a first forearm which is articulated to the arm about an articulation axis and is intended to have an articulated wrist, and means for rotating the first forearm relative to the arm, said robot including a second forearm which is articulated to the arm about the same articulation axis as the first forearm and means for rotating the second forearm which are independent of the means for rotating the first forearm, wherein the distal end of the arm supports for rotation a structure which is fixed to the second forearm and also rigidly supports an electric motor for rotating the first forearm.
Claim 2
Dependent Claim
112 words
An articulated robot including an arm having a distal end, a first forearm which is articulated to the arm about an articulation axis and is intended to have an articulated wrist, and means for rotating the first forearm relative to the arm, said robot including a second forearm which is articulated to the arm about the same articulation axis as the first forearm and means for rotating the second forearm which are independent of the means for rotating the first forearm, wherein the distal end of the arm supports for rotation a structure which is fixed to the second forearm and also rigidly supports an electric motor for rotating the first forearm.
Claim 3
Dependent Claim
24 words
A robot according to claim 1, wherein the first and second forearms are articulated on opposite sides of the distal end of the arm.
Claim 4
Dependent Claim
14 words
A robot according to claim 1, wherein the second forearm has a telescopic structure.
Claim 5
Dependent Claim
31 words
A robot according to claim 3, wherein said robot includes an electric motor which controls extension of the telescopic structure of the second forearm by means of a male-and-female thread system.
Claim 6
Dependent Claim
35 words
A robot according to claim 4, wherein the means for rotating the second forearm include a transmission shaft disposed coaxially in the arm and connected to the second forearm by a pair of bevel gears.
Claim 7
Dependent Claim
25 words
A robot according to claim 5, wherein an output shaft of the electric motor is connected to the first forearm by an epicyclic reduction unit.
References Cited (Backward Citations)
US2978118A
Cited
EP0044548A1
Cited
US4717303A
Cited
US4780047A
Cited
US4829840A
Cited
US4922782A
Cited
JPS62157737A
Cited
US4762455A
Cited
FR2638386A1
Cited
US4955250A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-03-29 | 1996-09-28 | 1997-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-03-29 | 2000-09-28 | 2001-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-03-29 | 2004-09-28 | 2005-03-30 | $7700.00 | Window Closed / Lapsed |