公开(公告)号：US5626182A

公开(公告)日：1997-05-06

申请号：US528417

申请日：1995-09-14

申请人： Andrea Bortoloni

发明人： Andrea Bortoloni

IPC分类号： B22C9/28

CPC分类号： B22C9/28

摘要： The die includes fixed or movable protuberances associated with die parts corresponding to the rim circumference. In the rim thus obtained the inner part of the spokes is hollow and communicates with the rim channel inside the tire but the hollow is spaced from the wheel hub.

摘要翻译： 模具包括与对应于边缘周长的模具部件相关联的固定或可移动的突起。 在由此获得的轮辋中，轮辐的内部是中空的并且与轮胎内的轮辋通道连通，但是中空与轮毂间隔开。

公开(公告)号：US5562147A

公开(公告)日：1996-10-08

申请号：US309987

申请日：1994-09-20

申请人： Andrea Bortoloni

发明人： Andrea Bortoloni

IPC分类号： B22D18/02 ,  B22D18/04

CPC分类号： B22D18/04 ,  B22D18/02

摘要： The movable upper portion of a mould is positioned in a first position. Molten metal is forced upwardly into the mould cavity through an opening in a stationary lower mould portion. The upper portion is lowered to a position below the first position to force molten metal into all regions of the mould cavity and to force excess metal back into the furnace. A stop is moved downwardly through an upper opening defined in the upper mould portion to close the lower opening. The upper portion is lowered to a second position, and an external downward force is applied on the upper portion to compress the metal within the mould. The method is particularly suitable for forming vehicle wheel rim castings with reduced subsequent surface processing.

摘要翻译： 模具的可动上部位于第一位置。 熔融金属通过固定的下模具部分中的开口被迫向上进入模腔。 将上部下降到位于第一位置下方的位置，以迫使熔融金属进入模腔的所有区域，并迫使多余的金属回到炉中。 止动件向下移动通过限定在上模具部分中的上开口以关闭下开口。 上部下降到第二位置，并且在上部施加外部向下的力以压缩模具内的金属。 该方法特别适用于形成具有减少的后续表面处理的车轮轮辋铸件。

公开(公告)号：US5826949A

公开(公告)日：1998-10-27

申请号：US969109

申请日：1997-11-12

申请人： Andrea Bortoloni

发明人： Andrea Bortoloni

IPC分类号： B60B3/06 ,  B60B21/02

CPC分类号： B60B3/06 ,  B60B21/02 ,  B60B21/023 ,  B60B21/028 ,  B60B21/08

摘要： A wheel rim has spaced indentations in the rim to remove material from the rim and decrease wheel weight. The indentations may be elongated grooves, which are aligned with the axis of the wheel. The grooves are evenly spaced circumferentially about the wheel. Each groove's cross-section is an arc of a circle. The grooves extend into the rim more than one half of the rim's nominal thickness. The radius of the circle that form the cross-section is much larger than the groove's depth so that the edges of the grooves do not meet the rim's surface at a sharp angle. This intersection minimizes stress. The grooves may be in the rim's an inner or outer surfaces or in both surfaces. The application also discloses other configurations for the indentations.

摘要翻译： 轮辋在轮辋上具有间隔的凹痕，以从轮辋上移除材料并减小车轮重量。 凹陷可以是与轮的轴线对准的细长凹槽。 凹槽围绕车轮周向均匀地间隔开。 每个槽的横截面是圆弧。 凹槽延伸到边缘的一半以上的边缘的标称厚度。 形成横截面的圆的半径远大于凹槽的深度，使得凹槽的边缘以锐角不与边缘的表面相遇。 这个交点使应力最小化。 凹槽可以在边缘的内表面或外表面中或在两个表面中。 该应用还公开了凹陷的其他配置。