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    • 69. 发明授权
    • Flap wheel
    • 襟翼轮
    • US5871399A
    • 1999-02-16
    • US887242
    • 1997-07-02
    • Grahame W. Emerson
    • Grahame W. Emerson
    • B24D13/04B24D13/16B24D13/06
    • B24D13/16B24D13/04
    • In one embodiment, a support member on an abrasive wheel has (a) an annular surface which fixedly supports (as by epoxy) a plurality of flaps in a partially overlapping relationship between successive flaps and (b) a central hole for receiving a mandrel which rotates the wheel. Each flap has on one of its surfaces abrasive particles facing outwardly from the annular surface. Each flap defines an acute angle with the annular surface and preferably extends at its opposite axial ends beyond the axial positions of support by such support surface to obtain a fixed positioning of the flaps relative to the support surface even at the axial positions beyond the axial ends of such annular surface. In a second embodiment, the flaps are disposed on the annular support surface in a tighter relationship than in the first embodiment so that each flap contacts adjacent flaps along a portion of its length. When the wheel is rotated with the flaps disposed adjacent a workpiece, the inner portions of the flaps provide an abrading action, partly because of their contact with one another, and the outer portions of the flaps provide a polishing action, partly because of their separation from one another. This polishing action is facilitated by the fact that (a) the flaps become separated from one another at their outer ends because of centrifugal action and (b) the grit on the flaps becomes progressively worn with progressive positions toward the outer ends of the flaps.
    • 在一个实施例中,研磨轮上的支撑构件具有(a)环形表面,其固定地支撑(如通过环氧树脂)在连续的翼片之间以部分重叠关系的多个翼片和(b)用于容纳心轴的中心孔 旋转车轮。 每个翼片在其一个表面上具有从环形表面向外的研磨颗粒。 每个翼片与环形表面限定锐角并且优选地在其相对的轴向端部处延伸超过支撑件的这种支撑表面的轴向位置,以获得翼片相对于支撑表面的固定定位,即使在超过轴向端部的轴向位置 的这种环形表面。 在第二实施例中,翼片以与第一实施例中更紧密的关系设置在环形支撑表面上,使得每个翼片沿其长度的一部分接触相邻的翼片。 当轮子随着邻近工件的翼片旋转时,翼片的内部部分由于它们彼此接触而提供研磨作用,并且翼片的外部部分地由于它们的分离而提供抛光动作 从彼此。 由于以下事实促进了这种抛光动作:(a)由于离心作用,翼片在其外端彼此分离,并且(b)襟翼上的砂粒随着朝向翼片的外端的渐进位置逐渐磨损。
    • 70. 发明授权
    • Lamellar end grinding wheel
    • 层状端砂轮
    • US4718204A
    • 1988-01-12
    • US861270
    • 1986-05-09
    • Gerd Eisenblatter
    • Gerd Eisenblatter
    • B24D13/16
    • B24D13/16
    • The invention relates to a lamellar end grinding wheel in which abrasive flaps engage over one another in tile-like manner along the circumferential zones of a circular disc-shaped back plate and are advantageously fixed with the aid of fingers. The abrasive flaps are also anchored in the back plate in that thickened portions are provided along one or both sides of the rear edge region thereof. The anchoring means can also comprise the abrasive flaps having one or more slot-like recesses in the edge region thereof and through these can be passed fingers or finger portions.
    • 本发明涉及一种层状末端砂轮,其中研磨翼片沿着圆盘形背板的圆周区域以瓦片状的方式彼此接合,并且有利地借助于手指固定。 研磨片也锚固在后板中,其中加厚部分沿其后边缘区域的一侧或两侧设置。 锚固装置还可以包括在其边缘区域中具有一个或多个狭槽状凹部的研磨片,并且通过这些可以通过手指或手指部分。