Patent ID: 6871689
Filing Date: 2005-03-29
Classification: B22C

Abstract:
1. Moulding machine ( 1 ) for the moulding of sand moulds ( 4 , 5 ; 47 ) by blowing sand in through a slitshaped opening ( 14 , 15 , 30 , 31 , 36 , 37 , 40 , 41 , 50 , 57 , 60 , 64 ) extending across a side plate ( 16 , 17 , 24 , 25 , 38 , 39 , 74 , 75 , 51 , 56 , 61 , 65 ) of a moulding box ( 6 , 7 , 76 ), into which box extends a moulding pattern ( 12 , 13 , 48 , 49 ), wherein at least one of the end parts ( 18 , 19 , 26 , 27 , 28 , 29 , 32 , 33 , 34 , 35 , 42 , 43 , 44 , 45 , 53 , 54 , 55 , 58 , 59 , 62 , 63 ) of the slitshaped opening has a greater width than the central part ( 20 , 21 , 36 , 37 ) thereof.