EP0920931A3 - Apparatus for bending a metal sheet - Google Patents

Apparatus for bending a metal sheet Download PDF

Info

Publication number
EP0920931A3
EP0920931A3 EP99200082A EP99200082A EP0920931A3 EP 0920931 A3 EP0920931 A3 EP 0920931A3 EP 99200082 A EP99200082 A EP 99200082A EP 99200082 A EP99200082 A EP 99200082A EP 0920931 A3 EP0920931 A3 EP 0920931A3
Authority
EP
European Patent Office
Prior art keywords
metal sheet
bending
slide
working position
shaped frame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP99200082A
Other languages
German (de)
French (fr)
Other versions
EP0920931B1 (en
EP0920931A2 (en
Inventor
Cornelis Hendricus Liet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=19762458&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0920931(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Publication of EP0920931A2 publication Critical patent/EP0920931A2/en
Publication of EP0920931A3 publication Critical patent/EP0920931A3/en
Application granted granted Critical
Publication of EP0920931B1 publication Critical patent/EP0920931B1/en
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/04—Bending sheet metal along straight lines, e.g. to form simple curves on brakes making use of clamping means on one side of the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/04—Bending sheet metal along straight lines, e.g. to form simple curves on brakes making use of clamping means on one side of the work
    • B21D5/042—With a rotational movement of the bending blade

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

An apparatus for bending a metal sheet (1) comprises a frame (2), a stationary lower beam (3) with a lower clamp (4), a movable upper beam (5) with an upper clamp (6), said clamps each having a clamping face for clamping a metal sheet in a working position, a lower bending beam (7) and an upper bending beam (8) for bending a clamped metal sheet upwardly and downwardly, respectively, said bending beams each at both sides being supported rotatably around a corresponding axis in a support plate (9), said support plates being movably mounted in the frame in such a manner that the lower or upper bending beam can be moved into a working position, in which its axis is substantially in the plane of the clamping face of the lower or upper clamp, respectively. Further a device (12) for holding the metal sheet is provided, said holding device being provided with a mainly C-shaped frame (13) with a slide (14) movable backwards and forwards between a front and a back position on a slide bed (15), the legs (17,18) of the C-shaped frame carrying a lower and upper disc (19,20), respectively, adapted to engage a metal sheet in a working position. In the front position of the slide the legs of the C-shaped frame extend between the upper and lower beams and the lower and upper discs adjoin the clamps.
EP99200082A 1996-03-08 1997-03-10 Apparatus for bending a metal sheet Revoked EP0920931B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL1002552A NL1002552C1 (en) 1996-03-08 1996-03-08 Device for bending a metal sheet.
NL1002552 1996-03-08
EP97908577A EP0958071A1 (en) 1996-03-08 1997-03-10 Apparatus for bending a metal sheet

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP97908577A Division EP0958071A1 (en) 1996-03-08 1997-03-10 Apparatus for bending a metal sheet

Publications (3)

Publication Number Publication Date
EP0920931A2 EP0920931A2 (en) 1999-06-09
EP0920931A3 true EP0920931A3 (en) 1999-06-16
EP0920931B1 EP0920931B1 (en) 2001-10-31

Family

ID=19762458

Family Applications (2)

Application Number Title Priority Date Filing Date
EP97908577A Withdrawn EP0958071A1 (en) 1996-03-08 1997-03-10 Apparatus for bending a metal sheet
EP99200082A Revoked EP0920931B1 (en) 1996-03-08 1997-03-10 Apparatus for bending a metal sheet

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP97908577A Withdrawn EP0958071A1 (en) 1996-03-08 1997-03-10 Apparatus for bending a metal sheet

Country Status (4)

Country Link
EP (2) EP0958071A1 (en)
DE (1) DE69707894T2 (en)
NL (1) NL1002552C1 (en)
WO (1) WO1997032677A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1010968C2 (en) * 1999-01-06 2000-10-24 Cornelis Hendricus Liet Positioning device for metal plate in bending press, includes support frame movable and fixable into position relative to sleigh for plate
NL1018882C2 (en) * 2001-09-04 2003-03-05 Cornelis Hendricus Liet Device and method for bending a metal plate.
CZ300617B6 (en) 2007-07-13 2009-07-01 Reinhard@Franze Sheet bending machine and method of bending sheet on such a bending machine
EP3403738B1 (en) * 2017-05-16 2022-08-03 Thalmann Maschinenbau AG Sheet metal bending machine
EP3778048B1 (en) 2019-08-15 2023-06-07 Thalmann Maschinenbau AG Processing machine for flat material parts with a laying unit and method therefor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2004216A (en) * 1977-09-19 1979-03-28 Salvagnini Transferica Spa Machine for bending the edges of rectangular sheets of metal
DE3605815A1 (en) * 1986-02-22 1987-08-27 Weinbrenner Paul Maschbau Apparatus for the bending of sheet plates
US5138865A (en) * 1991-04-23 1992-08-18 Antonio Codatto Gripping assembly for a manipulator for plate sheets

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1002553C1 (en) * 1995-05-31 1996-12-03 Cornelis Hendricus Liet Device for bending a metal sheet.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2004216A (en) * 1977-09-19 1979-03-28 Salvagnini Transferica Spa Machine for bending the edges of rectangular sheets of metal
DE3605815A1 (en) * 1986-02-22 1987-08-27 Weinbrenner Paul Maschbau Apparatus for the bending of sheet plates
US5138865A (en) * 1991-04-23 1992-08-18 Antonio Codatto Gripping assembly for a manipulator for plate sheets

Also Published As

Publication number Publication date
WO1997032677A1 (en) 1997-09-12
EP0920931B1 (en) 2001-10-31
DE69707894T2 (en) 2002-04-04
DE69707894D1 (en) 2001-12-06
EP0958071A1 (en) 1999-11-24
EP0920931A2 (en) 1999-06-09
NL1002552C1 (en) 1997-09-09

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