(19)
(11) EP 0 418 915 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
25.09.1991 Bulletin 1991/39

(43) Date of publication A2:
27.03.1991 Bulletin 1991/13

(21) Application number: 90118185.9

(22) Date of filing: 21.09.1990
(51) International Patent Classification (IPC)5: B28D 1/08
(84) Designated Contracting States:
DE FR GB IT SE

(30) Priority: 22.09.1989 JP 247674/89
17.11.1989 JP 298835/89
12.12.1989 JP 322237/89
24.10.1989 JP 276893/89
11.05.1990 JP 122562/90

(60) Divisional application:
94109553.1 / 0623437

(71) Applicant: MITSUBISHI MATERIALS CORPORATION
Chiyoda-ku Tokyo (JP)

(72) Inventors:
  • Mogi, Katsumi, c/o Shoohin Kaihatsu Center
    Omiya-shi, Saitama-ken (JP)
  • Ohzeki, Hiro, c/o Shoohin Kaihatsu Center
    Omiya-shi, Saitama-ken (JP)

(74) Representative: Füchsle, Klaus, Dipl.-Ing. et al
Hoffmann, Eitle & Partner, Patentanwälte, Postfach 81 04 20
81904 München
81904 München (DE)


(56) References cited: : 
   
       


    (54) Cutting apparatus


    (57) The invention relates to a cutting apparatus comprising an endless chain body (2) having a plurality of plate-like links (1) connected to each other for angular movement in a common plane. Each link (1) has an end face on an inner peripheral side of the chain body (2), and at least a part of the links (1) are provided with a cutting device (4) at the end face thereof. The apparatus further comprises a plurality of sprockets (88,112) supporting the chain body (2) in tension, and defining a common plane of cut effected by the combination of the chain body (2) and the sprockets (88,112). The chain body (2) is supported by a rigid backplate (118), of thickness not greater than the thickness of the links (1). It provides a firm support to the rotating chain body (2) to permit sliding movement of the chain body (2) within the common plane of cut. The apparatus further comprises a means (92) for activating the rotational movement of the sprockets in cooperation with the chain body (2), and a means (58) for moving an object (W) or the chain body (2) toward each other to effect removal of a material disposed within the extended plane of the common plane of cut to effect separation of an object (W) into severed sections.






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