Patent US3572077A successfully refreshed from Google Patents.
US3572077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for a continuous swaging of rod-shaped workpieces
Assignee: Individual
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Filing: 1969-04-18
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Granted: 1971-03-23
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Expires: 1989-04-18
Abstract
Abstract At least one swaging unit is provided, which defines a feed path along which a rod-shaped workpiece is axially movable in said unit. Each of said units comprises a frame, a plurality of guides spaced around said path and extending substantially radially with respect to said path and rotatably mounted in said frame on axes which extend transversely to said path, a plurality of dies which consist of connecting rods and are slidably mounted in respective ones of said guides, a plurality of eccentric shafts mounted in said frame and extending parallel to said path and operatively connected to respective ones of said dies to reciprocate the same in said guides, and oscillating means for imparting to each of said dies an oscillating pivotal movement about the axis of rotation of the respective guide.
Inventors
- 👤 Bruno Kralowetz
- 👤 Gottfried Blaimschein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:24
CPC Classifications
B; B21; B21J; B21J7/00; B21J7/02; B21J7/14
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
139 words
Apparatus for a continuous swaging of rod-shaped workpieces, which comprises: at least one swaging unit defining a feed path along which a rod-shaped workpiece is axially movable through said unit, said unit comprising; a frame; a plurality of guides spaced around said path and extending substantially radially with respect to said path and rotatably mounted in said frame on axes which extend transversely to said path; a plurality of dies which consist of connecting rods and are slidably mounted in respective ones of said guides; a plurality of eccentric shafts mounted in said frame and extending parallel to said path and operatively connected to respective ones of said dies to reciprocate the same in said guides; and oscillating means for imparting to each of said dies an oscillating pivotal movement about the axis of rotation of the respective guide.
Claim 2
Dependent Claim
139 words
Apparatus for a continuous swaging of rod-shaped workpieces, which comprises: at least one swaging unit defining a feed path along which a rod-shaped workpiece is axially movable through said unit, said unit comprising; a frame; a plurality of guides spaced around said path and extending substantially radially with respect to said path and rotatably mounted in said frame on axes which extend transversely to said path; a plurality of dies which consist of connecting rods and are slidably mounted in respective ones of said guides; a plurality of eccentric shafts mounted in said frame and extending parallel to said path and operatively connected to respective ones of said dies to reciprocate the same in said guides; and oscillating means for imparting to each of said dies an oscillating pivotal movement about the axis of rotation of the respective guide.
Claim 3
Dependent Claim
28 words
Apparatus as set forth in claim 1, which comprises adjusting means for varying the angle of said oscillating pivotal movement imparted to said dies by said oscillating means.
Claim 4
Dependent Claim
126 words
Apparatus as set forth in claim 1, in which said oscillating means comprise: a plurality of plungers, each of which is associated with and spaced from one of said guides and extends parallel to the associated eccentric shaft; reciprocating means for imparting to said plungers a reciprocating movement in response to the rotation of said eccentric shafts; each of said eccentric shafts carries an eccentric member; each of said dies comprises an elliptic chuck having two discs formed with respective grooves facing and crossing each other and a cylindrical spider, which is disposed between said discs and slidably engages said grooves and which embraces said eccentric member on the eccentric shaft associated therewith; and each of said plungers engages said spider of said die associated therewith.
Claim 5
Dependent Claim
132 words
Apparatus as set forth in claim 3, in which: each of said plungers engages the associated die so that a rotation of said plunger is prevented; said reciprocating means comprise; screw threads on each of said plungers; a plurality of nuts, each of which is threaded on one of said screw threads; a plurality of linkages, each of which consists of a crank arm connected to one of said nuts and a coupler connected to said crank arm; a plurality of elliptic chucks pivoted in said frame and comprising each a spider; a plurality of additional eccentric members mounted on respective ones of said eccentric shafts and embraced each by one of said spiders of said pivoted elliptic chucks; and said crank arm, coupler and pivoted elliptic chuck forming an articulated quadrangle.
Claim 6
Dependent Claim
33 words
Apparatus as set forth in claim 4, in which: an adjusting ring is mounted in said frame for rotation about said path; and said pivoted elliptic chucks are pivoted to said adjusting ring.
Claim 7
Dependent Claim
30 words
Apparatus as set forth in claim 3, which comprises spring means arranged to transmit a reciprocating movement of said plungeRs to said dies in both directions of said reciprocating movement.
Claim 8
Dependent Claim
35 words
Apparatus as set forth in claim 1, in which: two of said swaging units are provided; and said workpiece is adapted to move through said units along said feed paths of said units in succession.
Claim 9
Dependent Claim
69 words
Apparatus as set forth in claim 7, in which: said feed paths of said two swaging units are longitudinally aligned; a transmission is disposed between said two swaging units and comprises a plurality of spur gears forming a circular series which is centered on said feed paths; adjacent ones of said spur gears mesh with each other; and a motor is provided to drive one of said spur gears.
Claim 10
Dependent Claim
44 words
Apparatus as set forth in claim 8, in which: each of said spur gears is operatively connected to one of said eccentric shafts; and the eccentric shafts operatively connected to adjacent ones of said spur gears belong to different ones of said swaging units.
Claim 11
Dependent Claim
23 words
Apparatus as set forth in claim 8, in which said transmission comprises idler gears operatively connecting said motor to said one spur gear.
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) | 1974-03-22 | 1974-09-21 | 1975-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-22 | 1978-09-21 | 1979-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-22 | 1982-09-21 | 1983-03-23 | $7700.00 | Window Closed / Lapsed |