| 摘要 |
A flipper mechanism for use in a pinball game in conjunction with a playing surface to propel an object across that playing surface comprises a flipper member shaped to have a hub section and a finger section. The finger section includes a striking surface for making contact with and accelerating the object across the playing surface. The playing surface includes at least one upstanding boss projecting from the surface. The interior of the boss is hollow. The hub portion of the flipper member has a generally cylindrical-like surface which includes a spirally inclined cam integrally formed on the cylindrical-like surface. The hub portion of the flipper member fits over the upstanding boss projecting from the playing surface. A button member having a top surface, a cylindrical skirt extending from the top surface and a peg extending from the underside of the top surface downward from the top surface is located over the flipper member and the upstanding boss such that the peg from the button member fits within the hollow interior of the boss. A cam follower is located on the interior of the skirt and when the button member is appropriately located over the flipper member the cam follower mates with and causes the flipper member to rotate as the button member is depressed toward the playing surface.
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