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1. 发明授权

US6092922A Food blender with a balanced blade 有权
标题翻译：食品搅拌机与平衡叶片
公开(公告)号：US6092922A
公开(公告)日：2000-07-25
申请号：US342427
申请日：1999-06-29
申请人： David J. Kett , Barry Chaffin, deceased , by Donald L. Bleich, legal representative
发明人： David J. Kett , Barry Chaffin, deceased , by Donald L. Bleich, legal representative
IPC分类号： A47J43/07 , A47J43/046
CPC分类号： A47J43/0722
摘要： A blade is provided for use in a blender wherein the blade is to rotate about a vertical axis of rotation. The blade is formed with a central hub portion defining a horizontal plane, and in a preferred arrangement, has four tines extending outwardly from said hub portion with each tine angularly spaced at 90.degree. to two adjacent tines to form two opposed pairs of tines, however, with the tines being arranged asymmetrical to one another. In order to reduce vibration and torque occasioned by the asymmetrical arrangement of the tines, each tine in an opposed pair is formed to be balanced to the other tine with respect to a first product of its mass times a distance of its center of mass from the center of rotation and with respect to a further product of its mass times a distance of its center of mass from the axis of rotation and times a distance of its center of mass from the horizontal plane. Preferably the magnitude of the products for each tine in an opposed pair should be within 1% of the magnitude of the products for the other tine in the pair.
摘要翻译：提供用于混合器中的刀片，其中刀片围绕垂直旋转轴线旋转。叶片形成有限定水平面的中心毂部分，并且在优选的布置中，具有从所述轮毂部分向外延伸的四个齿，每个叉齿在90度与两个相邻齿倾斜间隔，以形成两个相对的齿对，但是，齿相互排列不对称。为了减少尖齿的不对称布置引起的振动和扭矩，相对的一对中的每个齿形成为相对于其质量乘以其质心距离的第一乘积而与另一个齿平衡旋转中心，并且相对于其质量乘以其质心距离旋转轴的距离的乘积，并且其质心距水平面的距离再次产生。优选地，相对对中的每个齿的产品的大小应该在对中的另一个齿的产品的幅度的1％内。

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