Patent ID: 8171619

Claim:
Device for manufacturing a pre-assembly ( 2 ) for a tire, which device is provided with: a building drum ( 1 ) for receiving the pre-assembly ( 2 ), an inner liner stock roll ( 3 ) for containing an inner liner ( 4 ), a first side wall stock roll ( 5 ) for containing a first side wall ( 6 ) and a second side wall stock roll ( 7 ) for containing a second side wall ( 8 ), a joining device ( 9 ) for joining the inner liner ( 4 ) and the side walls ( 6 , 8 ) together into a pre-assembly ( 2 ), wherein in the pre-assembly ( 2 ) the first and second side walls ( 6 , 8 ) are situated on either side of the inner liner ( 4 ), which joining device ( 9 ) is provided with a cutting device ( 10 ) for cutting the pre-assembly ( 2 ) to length and with a supply conveyor ( 11 ; 11 a , 11 b ) for conveying the cut pre-assembly ( 2 ) to the building drum ( 1 ), characterised in that the device is provided with a first side wall measuring device ( 12 ) for measuring the length of the first side wall ( 6 ) of the cut pre-assembly ( 2 ) and for giving a first side wall measuring signal indicative of the measured length of the first side wall, with a second side wall measuring device ( 13 ) for measuring the length of the second side wall ( 8 ) of the cut pre-assembly ( 2 ) and for giving a second side wall measuring signal indicative of the measured length of the second side wall, and with an inner liner measuring device ( 14 ) for measuring the length of the inner liner ( 4 ) of the cut pre-assembly and for giving an inner liner measuring signal indicative of the measured length of the inner liner.