公开(公告)号：US5810407A

公开(公告)日：1998-09-22

申请号：US786792

申请日：1997-01-21

申请人： James R. Melendez ,  Jacob Lloyd Neet

发明人： James R. Melendez ,  Jacob Lloyd Neet

IPC分类号： A01B1/02 ,  A01K1/01 ,  B07B1/02 ,  B07B1/46 ,  A01B1/04

CPC分类号： B07B1/469 ,  A01B1/022 ,  A01K1/0114 ,  B07B1/02

摘要： A shovel includes a handle and a blade in which a central portion of the blade contains a plurality of perforations. The perforations are in an array of rows and columns and the rows extend in a direction perpendicular to the handle. The perforations are elongated and have a length in a direction approximately perpendicular to the handle. The perforations in adjoining columns and rows are interleaved a predetermined amount and the total area of the perforations is about one-half the area of the central portion. The blade is made from a single sheet of steel that is punched and bent into a compound shape to provide a rigid basket for retaining material. The perforated area is relatively flat, extends to the front edge of the blade, and can be reinforced with ridges that are formed when the sheet is bent. The front edge is reinforced by rolling the edge out of the plane of the central portion.

摘要翻译： 铲子包括手柄和刀片，其中刀片的中心部分包​​含多个穿孔。 穿孔是行和列的阵列，并且行在垂直于手柄的方向上延伸。 穿孔是细长的并且在大致垂直于把手的方向上具有长度。 邻接的列和行中的穿孔被交错预定量，并且穿孔的总面积是中心部分的面积的大约一半。 刀片由单张钢板制成，其被冲压并弯曲成复合形状，以提供用于保持材料的刚性篮。 穿孔区域相对平坦，延伸到叶片的前边缘，并且可以用片材弯曲时形成的脊部加强。 前边缘通过将边缘滚出中心部分的平面来加强。