EP 3600813 A1 20200205 - SELF-CLEANING CHAIN WITH MODULAR OUTER LINK FOR ORNAMENTAL STONES CHAIN CUTTING MACHINES
Title (en)
SELF-CLEANING CHAIN WITH MODULAR OUTER LINK FOR ORNAMENTAL STONES CHAIN CUTTING MACHINES
Title (de)
SELBSTREINIGENDE KETTE MIT MODULAREM AUSSENGLIED FÜR SCHMUCKSTEINKETTENSCHNEIDMASCHINEN
Title (fr)
CHAÎNE AUTONETTOYANTE AVEC LIAISON EXTERNE MODULAIRE POUR MACHINES DE DÉCOUPE À CHAÎNE DE PIERRES ORNEMENTALES
Publication
Application
Priority
- IT 201700030399 A 20170320
- IB 2018051685 W 20180314
Abstract (en)
[origin: WO2018172884A1] Cutting chain for ornamental stones chain cutting machines, comprising a plurality of inner (2) and outer (1) links alternating with respect to each other, the outer links (1) being of the modular type, in two or three pieces. Around the articulation between the links (1, 2), an interspace (8) is formed which is narrow enough to prevent the entry of the material generated by the cutting, which could cause the articulation to jam. Close to such interspace (8), a projection (10) of the outer link (1) is provided to avoid the free rotation of the chain in the direction opposite to its natural curvature around the drive pinion. In order to prevent vibrations of the chain, poor machining, deformation of links, or even the breaking of the chain, even in the long-term, means are provided for pushing and ejecting the material generated by the cutting, in a position adjacent to the inlet of the interspace. Such means will form wedges (12) which crush the material with an action concentrated at the tip and above all they push it laterally even if it had hardened during the period the chain was inoperative, and in any case the action of the wedges (12) is cyclic and automatic given that it draws advantage from the cyclic rotary motion between the links of the chain during the operation of the chain cutting machine. Thus, the chain becomes a self-cleaning chain. Preferably, the wedges (12) are arranged under the projections (10) of the outer link.
IPC 8 full level
B28D 1/12 (2006.01); B27B 33/14 (2006.01)
CPC (source: EP)
B28D 1/124 (2013.01)
Citation (search report)
See references of WO 2018172884A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2018172884 A1 20180927; EP 3600813 A1 20200205; EP 3600813 B1 20210505; ES 2881501 T3 20211129; IT 201700030399 A1 20180920; PT 3600813 T 20210803
DOCDB simple family (application)
IB 2018051685 W 20180314; EP 18715965 A 20180314; ES 18715965 T 20180314; IT 201700030399 A 20170320; PT 18715965 T 20180314