(19)
(11) EP 0 920 931 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
16.06.1999 Bulletin 1999/24

(43) Date of publication A2:
09.06.1999 Bulletin 1999/23

(21) Application number: 99200082.8

(22) Date of filing: 10.03.1997
(51) International Patent Classification (IPC)6B21D 5/04
(84) Designated Contracting States:
BE DE ES FI FR GB IT NL PT SE

(30) Priority: 08.03.1996 NL 1002552

(62) Application number of the earlier application in accordance with Art. 76 EPC:
97908577.6

(71) Applicant: Liet, Cornelis Hendricus
NL-7581 PJ Losser (NL)

(72) Inventor:
  • Liet, Cornelis Hendricus
    NL-7581 PJ Losser (NL)

(74) Representative: de Vries, Johannes Hendrik Fokke 
De Vries & Metman B.V., Gebouw Autumn, Overschiestraat 184 N
1062 XK Amsterdam
1062 XK Amsterdam (NL)

 
Remarks:
This application was filed on 14 - 01 - 1999 as a divisional application to the application mentioned under INID code 62.
 


(54) Apparatus for bending a metal sheet


(57) 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.







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