(19)
(11) EP 0 326 876 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
16.05.1990 Bulletin 1990/20

(43) Date of publication A2:
09.08.1989 Bulletin 1989/32

(21) Application number: 89100981.3

(22) Date of filing: 20.01.1989
(51) International Patent Classification (IPC)4: B22C 5/08, B22D 31/00
(84) Designated Contracting States:
AT BE CH DE ES FR GB GR IT LI LU NL SE

(30) Priority: 05.02.1988 DK 583/88

(71) Applicant: DANSK INDUSTRI SYNDIKAT A/S
DK-2730 Herlev (DK)

(72) Inventor:
  • Christiansen, Hans Christian
    DK-2630 Taastrup (DK)

(74) Representative: Roerboel, Leif et al
BUDDE, SCHOU & CO. A/S, Vestergade 31
1456 Copenhagen K
1456 Copenhagen K (DK)


(56) References cited: : 
   
       


    (54) An apparatus for cooling and stripping objects cast in sand moulds


    (57) In an apparatus for cooling and stripping of objects cast in and contained in sand moulds, said apparatus being of the kind comprising a drum (1) supported for rotation about a substantially horizontal axis (0) with at least two rolling surfaces or rolling surface members (2) shaped on or secured to the drum (1) bearing on at least four support wheels (3), of which at least one is adapted to be driven and thus make the drum (1) rotate, said support wheels (3) at least partially consisting of an elastomeric material,
    the new feature consists in
    that each support wheel (3) consists of a single substan­tially circularly-cylindrical rim (56) of rigid material, such as steel, about which there are placed at least three rolling tyres (55) of elastomeric material, the axial width of which diminishes with increasing radius.
    This arrangement makes it possible to reduce maintenance costs and to achieve a highly desired sound and shock absorption using relatively low-costs means.







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