Patent ID: 11911982
Assignee: BRIDGESTONE EUROPE NV/SA
Field: Other special machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. System for applying a sealing agent to the surface (5) of an internal cavity of a pneumatic tire; the system comprises:
an applicator device, that is provided with a nozzle and that is suitable for supplying a strip of sealing agent that is applied to the surface;
a first opto-electronic device that is integral to and arranged upstream of the nozzle and provided with a first sensor element configured to acquire a first plurality of images of the surface that is devoid of the sealing agent;
a second opto-electronic device that is integral to and arranged downstream of the nozzle and provided with a second sensor element configured to acquire a second plurality of images of the surface provided with the sealing agent;
a third opto-electronic device provided with a third sensor element that is able to acquire a third plurality of images of the entire surface and to provide a plurality of signals that are indicative of said third plurality of acquired images; and
an electronic processing system, which is connected to the first, second, and third opto-electronic devices and to the applicator device and that is configured in such a way as to:
control an open loop application of the sealing agent as a function of a first plurality of signals that are indicative of the first plurality of images captured by the first opto-electronic device;
control a closed loop application of the sealing agent as a function of a second plurality of signals that are indicative of the second plurality of images captured by the second opto-electronic device; and
process the signals that are indicative of the third plurality of acquired images to determine the surface profile of the entire internal cavity and in such a way as to drive the applicator device as a function of the surface profile of the entire internal cavity.