公开(公告)号：US20240016353A1

公开(公告)日：2024-01-18

申请号：US18037715

申请日：2020-12-03

申请人： YAMABIKO CORPORATION

发明人： Seita TAKAI ,  Ukyo TAKAHASHI ,  Shunsuke FUJINAMI

IPC分类号： A47L9/24 ,  A01G20/47 ,  A47L9/10 ,  B07B7/01

CPC分类号： A47L9/248 ,  A01G20/47 ,  A47L9/104 ,  B07B7/01 ,  A01D46/253

摘要： Provided is a suction and separation composite tube, and a suction cleaning machine and a harvesting machine using the same, which are highly cost effective and are capable of, with a relatively simple structure to keep the manufacturing costs low, separating items of relatively small specific gravity from items of relatively large specific gravity even if the output of a motor is set high, and thus reducing the likelihood of clogging or the like of sucked objects and effectively preventing damage to or breakage of a fan and a fan casing. The suction and separation composite tube includes a connecting tube portion, a suction tube portion, and a separation tube portion. The suction tube portion or the separation tube portion is integrally continuous with the connecting tube portion at a distal end thereof. The suction tube portion and the separation tube portion are combined together at an intermediate portion or proximal end portion thereof. Using the fact that the flow velocity of airflow involving sucked objects that have been sucked from a suction port decreases at a combining portion, the sucked objects are separated into items of relatively small specific gravity and items of relatively large specific gravity.