EP 0672479 B1 19971210 - Punching apparatus for metallic profiles
Title (en)
Punching apparatus for metallic profiles
Title (de)
Stanzvorrichtung metallischer Profile
Title (fr)
Outil de poinçonnage pour profilés métalliques
Publication
Application
Priority
FR 9402664 A 19940308
Abstract (en)
[origin: EP0672479A1] A punch tool is claimed for producing a metallic tubular section (1) of great length with a section closed upon itself and presenting two parallel opposing faces (2, 3) arranged horizontally, with one or preferably two identical rectangular openings (10, 11), the larger edges (12, 13) of these openings extending in the longitudinal direction of the section. The tool comprises a parallelepiped punch (16) of which the lower, lateral cutting blades (30, 31) are parallel to the larger edges of the openings, the width of the punch being equal to the smaller edges while its length is less than that of the larger edges. The punch is integral with a drive piston (17) that allows a dimension of length less than that of the punch, which consists of some upper transverse cutting blades (34) in order to successively form the smaller edges of the opening consecutively with the longitudinal displacement of the section in the throat prior to the return movement.
IPC 1-7
IPC 8 full level
B21D 28/24 (2006.01); B21D 28/28 (2006.01)
CPC (source: EP)
B21D 28/243 (2013.01); B21D 28/28 (2013.01)
Designated contracting state (EPC)
BE CH DE ES GB GR IE IT LI LU NL PT
DOCDB simple family (publication)
EP 0672479 A1 19950920; EP 0672479 B1 19971210; DE 69501168 D1 19980122; DE 69501168 T2 19980618; ES 2113157 T3 19980416; FR 2717111 A1 19950915; FR 2717111 B1 19970117; GR 3026080 T3 19980529; MA 23468 A1 19951001
DOCDB simple family (application)
EP 95400309 A 19950214; DE 69501168 T 19950214; ES 95400309 T 19950214; FR 9402664 A 19940308; GR 980400246 T 19980205; MA 23796 A 19950306