EP 0664737 A1 19950802 - COLLET WITH TRANSLATING JAWS FOR AUTOMATIC LATHES.
Title (en)
COLLET WITH TRANSLATING JAWS FOR AUTOMATIC LATHES.
Title (de)
SPANNZANGE MIT VERSTELLBAREN SPANNBACKEN FÜR AUTOMATISCHE DREHMASCHINEN.
Title (fr)
PINCE DE SERRAGE AVEC MACHOIRES DE TRANSLATION POUR TOURS AUTOMATIQUES.
Publication
Application
Priority
- IT 9200145 W 19921119
- IT MI922388 A 19921016
Abstract (en)
[origin: WO9408744A1] Collet (20) for automatic lathes comprising externally conical jaws (21), three coaxial cup-like structures (50, 60, 70) consisting of a collar (51, 61, 71) and of longitudinally elastic tongues (55, 62, 72) acting on the jaws (21), and a reaction provoking ring (40) having a double internal taper (44, 45) which encircles the top (24) of the jaws (21) and the edge of the first cup (50) which is external and has a double internal taper (53) and external (52) and which in turn encircles the rear zone (25) of the jaws (21) thus producing a translating movement of the jaws (21) both during the closing phase of the collet (20), due to action by the edge of the first cup (50) and during the opening phase of the collet (20) due to elastic reaction by the tongues (62, 72) of the second and third cups (60, 70).
IPC 1-7
IPC 8 full level
B23B 13/12 (2006.01); B23B 31/20 (2006.01)
CPC (source: EP US)
B23B 13/125 (2013.01 - EP); B23B 31/202 (2013.01 - EP US); B23B 2231/2078 (2013.01 - EP); B23B 2231/2086 (2013.01 - EP)
Designated contracting state (EPC)
CH DE ES FR GB LI
DOCDB simple family (publication)
WO 9408744 A1 19940428; AU 3093992 A 19940509; EP 0664737 A1 19950802; IT 1255885 B 19951117; IT MI922388 A0 19921016; IT MI922388 A1 19940416
DOCDB simple family (application)
IT 9200145 W 19921119; AU 3093992 A 19921119; EP 92924856 A 19921119; IT MI922388 A 19921016