US3845271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oscillating type automatic arc welding apparatus
Assignee: JFE Engineering Corp
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Filing: 1973-05-31
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Granted: 1974-10-29
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Expires: 1993-05-31
Abstract
Abstract The apparatus comprises a welding nozzle swingably supported at one end on a welder body by a supporting pivot, a connecting rod having one end rotatably secured to the nozzle at a portion adjacent its free end, a main shaft rotatably connected to the opposite end of the connecting rod, an eccentric splined member eccentrically secured to the main shaft, a coupling having a splined recess complimentarily engaging the splined member, and a motor having a motor shaft connected to the coupling so as to be eccentrically aligned to the main shaft, the eccentric rotation of the main shaft producing a vibration of the nozzle via the connecting rod, and eccentricity of the main shaft being changed by varying the engaging angle of the splined member relative to the splined recess.
Inventors
- 👤 O Hirano
- 👤 M Yamane
- 👤 N Takemoto
- 👤 J Kawasaki
- 👤 T Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:31
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/24; B23K9/28; B23K9/30
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
203 words
An automatic arc welding apparatus comprising: a welder body; a nozzle for supplying a welding rod; a supporting pivot for pivotally supporting one end of the nozzle on the welder body; a connecting rod mechanism having one end rotatably mounted on said nozzle in the vicinity of the other end of the nozzle from which the welding rod is supplied; an eccentric spline mechanism including a main shaft rotatably connected to the other end of said connecting rod mechanism, a splined member eccentrically secured to one end of said main shaft, and a coupling having a splined recess which complimentarily engages said splined member, said splined member being selectively movable with respect to said splined recess; and rotation drive means for rotating said coupling, said rotation drive means including a drive shaft which is coaxially connected to said coupling and has its central axis eccentric to that of said splined member, whereby the eccentric rotation of said main shaft produces a reciprocating movement of said connecting rod mechanism, causing the nozzle to be vibrated, and the eccentricity of said main shaft relative to the drive shaft is changeable by varying the angle of engagement of said splined member relative to the splined recess.
Claim 2
Dependent Claim
203 words
An automatic arc welding apparatus comprising: a welder body; a nozzle for supplying a welding rod; a supporting pivot for pivotally supporting one end of the nozzle on the welder body; a connecting rod mechanism having one end rotatably mounted on said nozzle in the vicinity of the other end of the nozzle from which the welding rod is supplied; an eccentric spline mechanism including a main shaft rotatably connected to the other end of said connecting rod mechanism, a splined member eccentrically secured to one end of said main shaft, and a coupling having a splined recess which complimentarily engages said splined member, said splined member being selectively movable with respect to said splined recess; and rotation drive means for rotating said coupling, said rotation drive means including a drive shaft which is coaxially connected to said coupling and has its central axis eccentric to that of said splined member, whereby the eccentric rotation of said main shaft produces a reciprocating movement of said connecting rod mechanism, causing the nozzle to be vibrated, and the eccentricity of said main shaft relative to the drive shaft is changeable by varying the angle of engagement of said splined member relative to the splined recess.
Claim 3
Dependent Claim
22 words
Apparatus according to claim 1 wherein said connecting rod mechanism is connected to said nozzle so as to be selectively slidable therealong.
Claim 4
Dependent Claim
26 words
Apparatus according to claim 1 wherein said connecting rod mechanism is perpendicular to said nozzle and said main shaft is perpendicular to said connecting rod mechanism.
Claim 5
Dependent Claim
14 words
Apparatus according to claim 3 wherein said main shaft is parallel to said nozzle.
Claim 6
Dependent Claim
13 words
Apparatus according to claim 1 wherein said drive means is an electric motor.
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) | 1977-10-28 | 1978-04-29 | 1978-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-28 | 1982-04-29 | 1982-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-28 | 1986-04-29 | 1986-10-29 | $7700.00 | Window Closed / Lapsed |