公开(公告)号：US20080025794A1

公开(公告)日：2008-01-31

申请号：US11787238

申请日：2007-04-16

申请人： Lauro Barcenas

发明人： Lauro Barcenas

IPC分类号： E01C19/22

CPC分类号： E04F21/248

摘要： A drill attachment for smoothing the edges and corners of a concrete slab is disclosed. The drill attachment includes a shaft that is secured or chucked into an electric drill. Pluralities of troweling blades extend from the central shaft and are secured at their ends to maintain their position and orientation. The blades are secured to the trowel at variable or fixed angles that are changeable to suit the finishing need of the operator. In operation the drill attachment is used to smooth the ends and corners of a foundation where larger smoothing trowel machines have difficulty reaching. The power trowel is field installed and removed when needed for use, cleaning and storage. The drill attachment has an independently spinning blade cover extends over the ends of the blades to prevent damage to a wall or other surface when the trowel is in use.

摘要翻译： 公开了一种用于使混凝土板的边缘和角部平滑的钻头附件。 钻头附件包括固定或夹紧到电钻中的轴。 多个t刀片从中心轴延伸并固定在它们的端部以保持其位置和取向。 叶片以可变或固定的角度固定到t刀上，其可变化以适应操作者的完成需要。 在操作中，钻头附件用于平滑较大的平滑抹光机难以到达的基础的端部和拐角。 电力抹光机在需要使用，清洁和储存时进行现场安装和拆除。 钻头附件具有独立旋转的叶片盖，其在刀片的端部上延伸，以防止在使用t刀时损坏壁或其它表面。

公开(公告)号：US07399140B2

公开(公告)日：2008-07-15

申请号：US11787238

申请日：2007-04-16

申请人： Lauro Barcenas

发明人： Lauro Barcenas

IPC分类号： E01C19/22

CPC分类号： E04F21/248

摘要： A drill attachment for smoothing the edges and corners of a concrete slab is disclosed. The drill attachment includes a shaft that is secured or chucked into an electric drill. Pluralities of troweling blades extend from the central shaft and are secured at their ends to maintain their position and orientation. The blades are secured to the trowel at variable or fixed angles that are changeable to suit the finishing need of the operator. In operation the drill attachment is used to smooth the ends and corners of a foundation where larger smoothing trowel machines have difficulty reaching. The power trowel is field installed and removed when needed for use, cleaning and storage. The drill attachment has an independently spinning blade cover extends over the ends of the blades to prevent damage to a wall or other surface when the trowel is in use.