| 摘要 |
An arrangement for an apparatus ( 1 ) for application of roof covering ( 2 ) and comprising a wagon ( 4 ) moveable by aid of wheels ( 3 ) intended to join together two unrolled rolls of roof covering in connection to a joint ( 5 ) on top of each other lying covering layers ( 6, 7 ) by aid of a hot air aggregate ( 8 ) supported by said wagon ( 4 ), which via a nozzle ( 9 ) blows hot gas into said joint ( 5 ) at the same time as the wagon ( 4 ) is moved forwards and at least one operating pressure roller ( 10 ) included in said wagon ( 4 ), which is intended to press together the covering layers ( 6, 7 ) lying on top of each other. The hot air aggregate ( 8 ) is turnably supported onto the one front outer portion ( 12 ) of said wagon ( 4 ) by aid of a hinge ( 11 ) having its nozzle ( 9 ) turnable inwards between those covering layers ( 6, 7 ), which shall be welded together and said operating pressure roller ( 10 ) is provided in the front, central portion ( 13 ) of the wagon ( 4 ) immediately after the nozzle ( 9 ) on the same when it is in its turned in, active position and which comprises a middle portion ( 14 ) having a smaller diameter than adjacent outer portions ( 15, 16 ) for achieving two application surfaces ( 17, 18 ) against a joint surface ( 19 ) in the joint at the same time as an extra pressure roller ( 20 ) is provided after or behind the operating pressure roller ( 10 ) intended only to act against that surface of the joint ( 5 ), which the first, operating pressure roller ( 10 ) has not treated. |
