Patent US3709423A successfully refreshed from Google Patents.
US3709423A
Expired / Lapsed
US
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Automatic welding apparatus
Assignee: JFE Engineering Corp
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Filing: 1970-08-12
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Granted: 1973-01-09
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Expires: 1990-08-12
Abstract
Abstract An automatic welding apparatus for applying a weld to the intersection between a pair of plates. A guide is situated at the intersection to guide a welding unit which will deposit the weld at the intersection. This guide is carried by a supporting structure to which a force is applied by a force-applying assembly in such a way that the guide is pressed inwardly toward the intersection with a pressing force extending along a pressing line which bisects the angle defined between the plates which are welded to each other. The force-applying assembly applies to the supporting structure a pair of mutually perpendicular component forces, and the pressing force with which the guide is pressed into the intersection is the resultant of these component forces.
Inventors
- 👤 M Hano
- 👤 T Kiyotake
- 👤 M Oike
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:05
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/02; B23K9/025; B23K9/0256; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53978
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
158 words
In an automatic welding apparatus for depositing a weld at the intersection between a pair of plates, support means, guide means carried by said support means and situated directly next to the intersection between the plates in a plane which is between said plates and contains said intersection, fluid-pressure means operatively connected with said support means for applying through the latter to said guide means a pressing force pressing said guide means in said plane inwardly toward the intersection between said plates along a pressing line in said plane extending from the intersection between said plates into a space defined therebetween and in which said guide means is accommodated, and welding means carried by said support means and having with respect to said guide means a position for properly depositing a weld at the intersection between said plates while said guide means is pressed along said pressing line inwardly toward the intersection and thus guides the welding means.
Claim 2
Dependent Claim
158 words
In an automatic welding apparatus for depositing a weld at the intersection between a pair of plates, support means, guide means carried by said support means and situated directly next to the intersection between the plates in a plane which is between said plates and contains said intersection, fluid-pressure means operatively connected with said support means for applying through the latter to said guide means a pressing force pressing said guide means in said plane inwardly toward the intersection between said plates along a pressing line in said plane extending from the intersection between said plates into a space defined therebetween and in which said guide means is accommodated, and welding means carried by said support means and having with respect to said guide means a position for properly depositing a weld at the intersection between said plates while said guide means is pressed along said pressing line inwardly toward the intersection and thus guides the welding means.
Claim 3
Dependent Claim
21 words
The combination of claim 1 and wherein said plane and said pressing line therein bisect an angle defined between said plates.
Claim 4
Dependent Claim
16 words
The combination of claim 2 and wherein the angle between said plates is a right angle.
Claim 5
Dependent Claim
31 words
The combination of claim 1 and wherein said fluid-pressure means applies to said support means a pair of component forces and said pressing force being a resultant of said component forces.
Claim 6
Dependent Claim
52 words
The combination of claim 4 and wherein said plates are at right angles to each other and are horizontal and vertical, respectively, said component forces also being horizontal and vertical, respectively, and said pressing force as well as said pressing line extending at a 45* angle into the intersection between said plates.
Claim 7
Dependent Claim
88 words
The combination of claim 5 and wherein said support means includes a substantially vertical supporting plate, a mounting structure carried by said supporting plate and mounting said welding means thereon, a supporting arm fixed at one end to said supporting plate and extending substantially horizontally therefrom toward said intersection, said supporting arm having distant from said supporting plate an end region carrying said guide means, and said fluid-pressure means being operatively connected with said supporting plate for acting through the latter on said supporting arm and guide means.
Claim 8
Dependent Claim
162 words
The combination of claim 6 and wherein said fluid-pressure means is operatively connected to said supporting plate at a side thereof opposite from said mounting structure and supporting arm and includes a swing-arm swingable about a vertical axis and a pivot pivotally connecting said supporting plate to said swing arm distant from said vertical axis, said pivOt being connected to said supporting plate to support the latter for swinging movement about a horizontal axis with respect to said swing arm, and said fluid-pressure means including a pair of pressure sources one of which is operatively connected with said swing arm for urging the latter about said vertical axis inwardly toward said intersection and the other of which is connected between said supporting plate and swing arm for urging said supporting plate about said horizontal axis in a direction which provides for said guide means a component directed downwardly while said one pressure source provides for said guide means a component directed horizontally.
Claim 9
Dependent Claim
18 words
The combination of claim 7 and wherein said pressure sources are in the form of fluid-pressure cylinder-and-piston assemblies.
Claim 10
Dependent Claim
20 words
The combination of claim 7 and wherein said horizontal axis is situated at an elevation lower than said supporting arm.
Claim 11
Dependent Claim
35 words
The combination of claim 9 and wherein said supporting arm has at said end region a portion extending angularly from the remainder of said supporting arm inwardly toward said intersection and carrying said guide means.
Claim 12
Dependent Claim
28 words
The combination of claim 10 and wherein said guide means is in the form of a guide roller turnably carried by said end region of said supporting arm.
Claim 13
Dependent Claim
43 words
The combination of claim 11 and wherein a stationary base carries said swing arm for movement about said vertical axis, and feed means coacting with the plates which are to be welded for feeding the latter longitudinally with respect to said guide roller.
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) | 1976-01-09 | 1976-07-10 | 1977-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-09 | 1980-07-10 | 1981-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-09 | 1984-07-10 | 1985-01-09 | $7700.00 | Window Closed / Lapsed |