(19)
(11) EP 1 600 235 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
08.02.2006 Bulletin 2006/06

(43) Date of publication A2:
30.11.2005 Bulletin 2005/48

(21) Application number: 05011420.6

(22) Date of filing: 26.05.2005
(51) International Patent Classification (IPC): 
B23D 57/02(2006.01)
B27B 17/12(2006.01)
B28D 1/12(2006.01)
 B28D 1/08(2006.01)
B23D 59/04(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR LV MK YU

(30) Priority: 26.05.2004 IT PI20040038

(71) Applicant: Proietti, Manuel
54033 Carrara (MS) (IT)

(72) Inventor:
  • Proietti, Manuel
    54033 Carrara (MS) (IT)

(74) Representative: Celestino, Marco 
ABM, Agenzia Brevetti & Marchi, Viale Giovanni Pisano, 31
56123 Pisa
56123 Pisa (IT)

   


(54) Chain cutting machine for stone


(57) The invention relates to a chain cutting machine and, in particular, it relates to a lubrication method of the contacting surfaces between the chain links (31) and a guide executed in the blade body, on which said chain slides. The blade body provides at least one lubricant input duct executed in the blade body through a channel that extends parallel to the perimeter of the blade, and a plurality of holes that connect said channel with the sliding zone. According to another aspect, each link of the chain comprises a cutting tip holder (11) that holds at least one cutting tip (12), equipped with engagement means (14), so called brackets, for connecting the cutting tips (12) to said cutting tip holders (11) by friction caused by the pressure of the bracket (14). This way, for changing a worn cutting edge it is not necessary to unscrew completely the fastening screw (15) of the cutting tip, but a few unscrewing turns are enough for loosening the cutting tip and changing its position.







Search report