| 摘要 |
A nutcracker utilizes a cone with a textured exterior surface rotatably mounted and centered inside a vertical cylinder with a textured interior surface. The textured exterior surface and the textured interior surface are non-parallel and form a cracking zone that becomes smaller in the downward direction. As the conical member rotates, gravity rolls nuts down in a spiraling path, between and along the preferred elongated and slanted protrusions forming the texture. This path takes the nuts into an increasingly smaller cracking zone until the pressure on the nuts from the conical and cylindrical members causes the nut-shells to crack and the nuts typically to break into halves and thirds. The nutcracker may include an adjustable barrel that rolls up and down inside a housing, for changing the minimum width of the cracking zone. |
