ARJAN VAN NIEUWENHUIJZEN,BOB THOMAS VAN DER HELM,DIRK VERMEULEN
申请号：
NL2021414
公开号：
NL2021414B1
申请日:
2018.07.31
申请国别(地区):
NL
年份:
2020
代理人:
摘要：
The invention relates to an air duct of a pliable material, provided along its longitudinal direction with a number of a holes. The holes are defined by a generally U-shaped through cut through the wall, the cut having two opposed longitudinal sides (16,17) and a transverse side (18). The wall material extending between the flap edge (19) and the end positions (22,23) of the longitudinal sides (16,17) remains attached to the wall so that a flap (21) is formed. The flap directs the air stream exiting from the duct.
