公开(公告)号：US06539577B1

公开(公告)日：2003-04-01

申请号：US09537136

申请日：2000-03-29

申请人： Atsushi Okuda ,  Atuo Hamada ,  Souji Sakata ,  Kazuyoshi Yoshimi ,  Kazumasa Kamatani ,  Nobuaki Takahashi ,  Syuzo Ueyama ,  Naoki Suetugu

发明人： Atsushi Okuda ,  Atuo Hamada ,  Souji Sakata ,  Kazuyoshi Yoshimi ,  Kazumasa Kamatani ,  Nobuaki Takahashi ,  Syuzo Ueyama ,  Naoki Suetugu

IPC分类号： A47L904

CPC分类号： A47L9/04 ,  A47L5/30

摘要： An upright electric cleaning device includes a floor suction tool formed with a long suction opening on the bottom surface thereof. A rotating brush holding chamber holds a rotating brush that extends to this long suction opening. A suction opening leading to the main cleaning device unit is formed toward one end of the rear wall of the rotating brush holding chamber. A rib, formed on the upper section of the rotating brush holding chamber, extends along the length of the rotating brush, near the rotation path of the rotating brush. An air current path is formed to take dust drawn up by the rotating brush and stopped by the rib and suck it into the suction opening leading to the main cleaning device unit. The air current path is shaped so that its cross section is smaller at an end of the air current path remote from the suction opening than it is near the suction opening to increase flow speed at the remote end. In one embodiment, an opening to the outside is formed at the remote end of the air current path to enhance air flow toward the suction opening. In a further embodiment, the enhanced air flow if further improved by venting exhaust air from the main cleaning device into the opening to positively improve air flow.

摘要翻译： 立式电动清洁装置包括在其底表面上形成有长吸入口的地板吸入工具。 旋转刷保持室保持延伸到该长吸入口的旋转刷。 通向主清洁装置单元的吸入口朝向旋转刷保持室的后壁的一端形成。 形成在旋转刷保持室的上部的肋沿着旋转刷的长度在旋转刷的旋转路径附近延伸。 形成气流路径，以吸收由旋转刷牵引并由肋停止的灰尘并将其吸入通向主清洁装置单元的吸入口。 气流路径的形状使得其远离吸入口的气流路径的端部处的截面小于其在吸入口附近的横截面，以增加远端的流速。 在一个实施例中，在气流路径的远端处形成有一个到外部的开口，以增强朝向吸入口的气流。 在另一个实施例中，如果通过将排气从主清洁装置排放到开口中而进一步改善，则增强的空气流积极地改善空气流。