| 摘要 |
The invention concerns a mobile installation for bridging cracks in road surfaces, comprising a vehicle comprising a front station for preparing cracks with a thermal lance, a central station for supplying energy and fluids, and a rear station for the dispensing of sand and sealing product. The installation is characterised in that it comprises means cooperating in such a way as to coordinate the speeds of progression of the operator using the front station, of progression of the motor vehicle and of progression of the operator or operators using the rear section, the said means of coordination comprising in the front section, on the one hand, an automatic spooler 14 of the supply hose 15 of the thermal lance 12 and, on the other hand, a jib having articulated arms 25, 26, 27, 28 for supporting the hose between the spooler and the lance, and in the rear station a device 37 for controlling the steering 38, gears 40 and brake 39. Application to roadworks. <IMAGE>
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