EP 0104844 A2 19840404 - Apparatus for manufacturing flexible corrugated tubes.
Title (en)
Apparatus for manufacturing flexible corrugated tubes.
Title (de)
Vorrichtung zur Herstellung flexibler, gewellter Rohre.
Title (fr)
Dispositif pour la fabrication de tubes flexibles et ondulés.
Publication
Application
Priority
- US 42553282 A 19820928
- US 52109083 A 19830810
Abstract (en)
Apparatus for helically curling longitudinally currugated thin strip material into a flexible corrugated tube has a curling unit with driven input rollers forming a nip that matches the strip, and a cassette for a reel of the material which is connected to said unit and has strip guide rollers immediately adjacent the input rollers. The curling unit has driven output rollers on an upright support to drive the strip, and a spider which is vertically adjustable on the support and carries strip guide rollers which are on spindles equidistant from the longitudinal axis of the forming tube, and radially adjustable, so that adjustment of the spider on the support and the spindles on the spider permits the unit to form tubes of different diameters. A locking mechanism intermittently crimps overlapping parts of the forming tube. A bending device aids in forming relatively stiff strip stock, and also aids in forming softer stock into very small diameter tubes.
IPC 1-7
IPC 8 full level
B21C 37/12 (2006.01)
CPC (source: EP)
B21C 37/121 (2013.01); B21C 37/124 (2013.01); B21C 37/126 (2013.01); B21C 37/128 (2013.01)
Designated contracting state (EPC)
BE DE FR GB IT NL
DOCDB simple family (publication)
EP 0104844 A2 19840404; EP 0104844 A3 19840711; EP 0104844 B1 19870715; CA 1231006 A 19880105; DE 3372446 D1 19870820; DK 445083 A 19840329; DK 445083 D0 19830928; ES 525975 A0 19850101; ES 8502356 A1 19850101
DOCDB simple family (application)
EP 83305425 A 19830915; CA 436514 A 19830912; DE 3372446 T 19830915; DK 445083 A 19830928; ES 525975 A 19830927