US4475424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blanking apparatus
Assignee: Amada Co Ltd
•
Filing: 1981-12-14
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Granted: 1984-10-09
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Expires: 2001-12-14
Abstract
Abstract The present invention relates to a blanking apparatus comprising a press, a ram vertically movably provided on the press, a blanking unit disposed just beneath the ram, blanking tools arranged in the blanking unit; and a striker member for working on the blanking tools. The apparatus is used in particular for blanking a sheet material from a coiled strip into a number of pieces in the form of discs, triangles, and other shapes.
Inventors
- 👤 Shigeyoshi Kouno
- 👤 Masakazu Okajima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:29
CPC Classifications
B; B21; B21D; B21D28/00; B21D28/02; B21D28/06; B21D28/08; B26; B26F; B26F1/00; B26F1/38; B26F1/40; Y; Y10; Y10T; Y10T83/00; Y10T83/444; Y10T83/4475; Y10T83/4478; Y10T83/869; Y10T83/8727; Y10T83/8737; Y10T83/874; Y10T83/8759
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
129 words
A blanking apparatus, comprising: a press; a ram vertically movably provided on the press; two blanking units being disposed just beneath the ram and further being so disposed so as to be horizontally movable in a direction normal to a feeding path along which a strip to be blanked is fed; blanking tools being arranged in the blanking units; and a striker member for working on the blanking tools, said striking member being longer than the length by which the blanking unit is movable, means for moving said striking member horizontally in the direction of the feeding path such that said striking member may be selectively moved in alignment with either of said blanking units, and said striking member further being provided at a lower end of the ram.
Claim 2
Dependent Claim
129 words
A blanking apparatus, comprising: a press; a ram vertically movably provided on the press; two blanking units being disposed just beneath the ram and further being so disposed so as to be horizontally movable in a direction normal to a feeding path along which a strip to be blanked is fed; blanking tools being arranged in the blanking units; and a striker member for working on the blanking tools, said striking member being longer than the length by which the blanking unit is movable, means for moving said striking member horizontally in the direction of the feeding path such that said striking member may be selectively moved in alignment with either of said blanking units, and said striking member further being provided at a lower end of the ram.
Claim 3
Dependent Claim
42 words
The blanking apparatus defined in claim 1, further comprising: a carrier member being horizontally movable in the direction normal to the feeding path along which the strip to be blanked is fed; said blanking units being detachably mounted on the carrier member.
Claim 4
Dependent Claim
63 words
The blanking apparatus defined in claim 1, wherein: said blanking units, being arranged on both sides of the feeding path along which the strip to be blanked is fed, are so provided as to be movable at right angles to the feeding path; and said blanking tools are provided in the blanking units at a space from each other along the feeding path.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-10-09 | 1988-04-09 | 1988-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-09 | 1992-04-09 | 1992-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-09 | 1996-04-09 | 1996-10-09 | $7700.00 | Window Closed / Lapsed |