ATBECHDEDKESFRGBGRITLILUNLSEMCPTIESILTLVFIROMKCYALTRBGCZEEHUPLSKBAHRISYU........JDIM360 (Ver 1.5 21 Nov 2005) - 1620000/01676804EUROPEAN PATENT APPLICATIONA320060802EP05397026.520051219fienen20040490 U20041229FI2006080220063120060705200627B65H 75/50 20060101AFI20060411BHEP deStossverbinding für Wickelkerne aus PapierenAbutment joint for paper reel coresfrJoint bout à bout pour des bobines de papiernoneOy Core Handling Ltd0725634043105Laserkatu 653850 LappeenrantaFIÄMTÖ, Pekka Penttilänkuja 5 HFI-49420, HaminaFILangenskiöld, Tord Karl Walter00082971Oy Jalo Ant-Wuorinen Ab, Iso-Roobertinkatu 4-6 A00120 HelsinkiFIATBEBGCHCYCZDEDKEEESFIFRGBGRHUIEISITLILTLULVMCNLPLPTROSESISKTRALBAHRMKYU20060802200631

An abutment joint for end-to-end joining of paper reel cores, the abutment joint comprising a first conical surface (4) formed on the outer surface of one core (2) and a second conical surface (3) formed on the inner surface of the other core (1), whereby said first conical surface and said second conical surface abut against each other in the joint, wherein at least one protrusion (6) is formed at least on one conical surface and at least one groove (5) is formed at least on the other conical surface to form an interlocking joint between the cores.