| 摘要 |
PCT No. PCT/SE94/00492 Sec. 371 Date Jul. 1, 1996 Sec. 102(e) Date Jul. 1, 1996 PCT Filed May 25, 1994 PCT Pub. No. WO94/29074 PCT Pub. Date Dec. 22, 1994The object forming the basis of the present invention is attained if the apparatus disclosed by way of introduction is characterized in that the one support member is shiftably disposed and connected with an advancement device in order to execute an advancement movement for the sheets; that the second support member is stationary but connected to an adjustment arrangement, which is disposed to realise adjustment of the second support member in a direction substantially parallel with the direction of advancement; and that the welding device is movable towards and away from the joint region in a direction which is transversely directed to the direction of advancement. |
