EP 0124449 A1 19841107 - Waste shredder.
Title (en)
Waste shredder.
Title (de)
Zerkleinerungsmaschine für Müll.
Title (fr)
Broyeur pour déchets.
Publication
Application
Priority
FR 8304793 A 19830318
Abstract (en)
1. Waste shredder of the type comprising two parallel shafts (6) driven in rotation in opposing directions from top to bottom and from the exterior towards the interior, each shaft presenting a plurality of edges (10) distributed regularly on its periphery, the distance between the two shafts being such that their respective edges are not in contact when moving in rotation, the said shredder being equipped with a third shaft (14) which, on an axis parallel to those of the first two and arranged below these, includes tools (17) jutting out over its periphery and is driven in rotation and the speeds of drive in rotation of the first two shafts (6) being, to a greater or lesser degree, identical, characterised in that each of the edges is arranged on a circular helix, the twists of the helices, in accordance with which the edges of the two shafts are provided, acting in opposite directions, in that the speed of rotation of the third shaft (14) is appreciably greater than that of the first two shafts (6), the speeds of the first two shafts and of the third varying in a ratio of 1 to 10, and in that the third shaft (14) is displaced laterally in relation to the longitudinal mid-plane of the first two shafts (6), from the side of the shaft (6) in the direction in which it turns.
Abstract (fr)
Ce broyeur comprend deux arbres parallèles (6) entraînés en rotation en sens inverse portant des outils (10) disposés selon des hélices circulaires, en dessous desquels est disposé un arbre (14) parallèle aux deux premiers, portant des dents (17), et entraîné en rotation. Application aux broyages de déchets et notamment de déchets de bois.
IPC 1-7
IPC 8 full level
B02C 4/08 (2006.01); B02C 18/14 (2006.01); B02C 18/18 (2006.01)
CPC (source: EP)
B02C 18/142 (2013.01); B02C 18/145 (2013.01); B02C 18/182 (2013.01); B02C 18/184 (2013.01); B02C 2018/147 (2013.01)
Citation (search report)
- [A] EP 0069721 A2 19830112 - DUFOURNY EDMOND SPRL ENTP [BE]
- [AD] GB 1206313 A 19700923 - COAL INDUSTRY PATENTS LTD [GB]
- [A] US 3502276 A 19700324 - PANNING MARTIN H, et al
- [A] DE 2943570 A1 19810430 - VOELSKOW PETER
- [A] FR 871657 A 19420505 - PAGET & CIE ETS
- [A] FR 394008 A 19090112 - RENE FRUGIER [FR]
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0124449 A1 19841107; EP 0124449 B1 19870708; AT E28133 T1 19870715; DE 3464540 D1 19870813; FR 2542632 A1 19840921; FR 2542632 B1 19860328
DOCDB simple family (application)
EP 84420050 A 19840319; AT 84420050 T 19840319; DE 3464540 T 19840319; FR 8304793 A 19830318