Process for adhesively bonding two rubber bodies and products adapted for this process

The process for adhesively bonding two rubber bodies 1 and 2, by vulcanising a binding gum layer 2, essentially provides a novel way of organising the evacuation of the gaseous inclusions trapped between the said bodies 1 and 3 and/or resulting from the subsequent vulcanising reaction and of collecting these gases; the gaseous inclusions travel towards blind holes 7 which are made on the face 31, intended to be adhesively bonded, of at least one 3 of the two rubber bodies. Application in particular to the retreading of pneumatic tyres. LE PROCEDE DE COLLAGE DE DEUX CORPS 1 ET 3 EN CAOUTCHOUC PAR VULCANISATION D'UNE COUCHE DE GOMME DE LIAISON 2 PREVOIT ESSENTIELLEMENT UNE NOUVELLE FACON D'ORGANISER LE DRAINAGE DES INCLUSIONS GAZEUSES EMPRISONNEES ENTRE LESDITS CORPS 1 ET 3 ETOU RESULTANT DE LA REACTION DE VULCANISATION SUBSEQUENTE ET DE RECUEILLIR CES GAZ: LES INCLUSIONS GAZEUSES CHEMINENT VERS DES TROUS BORGNES 7 AMENAGES SUR LA FACE 31, DESTINEE A ETRE COLLEE, D'AU MOINS UN 3 DES DEUX CORPS EN CAOUTCHOUC.APPLICATION NOTAMMENT AU RECHAPAGE DES PNEUMATIQUES.