| 摘要 |
<p>A puzzle cube has a cube body the sides of which are formed by cube elements each forming part of three cube sections which are arranged for rotation relative to the remaining portion of the cube body about center axes of the cube body respectively offset by 90.degree.. A support structural member is arranged inside the cube body with which the cube elements which with respect to the associated cube sides are center cube elements cooperate, while the remaining cube elements are provided with cams at the inner surfaces which engage behind guiding surfaces of the inner cube elements. The cams of the corner cube elements cooperate with cams and guiding surfaces of the adjacent cube elements. The support structural member (15) comprises an inner core (S), preferably a spherical core, having eight spherical guiding elements (Q) arranged thereat in uniformly spaced arrangements. The guiding elements are connected to the core (S) via a web (P1, P2, P3, P4) and form concentrically extending guiding channels (17, 18, 19) in three diametral planes which are mutually perpendicular and which engage the cams of those cube elements that, with respect to one cube side, respectively are the center ones of 16 cube elements per cube side. The cams are guided along a circular path, the cams (24) of the cube elements (B) adjacent the center cube elements (C) gripping behind undercut guiding surfaces of the center cube elements (C) defining a circular path. Blocking means are associated with one half of the support structural member (15) in such a manner that the cube elements associated with this half are capable of being rotated relative to the remaining cube elements together with the support structural member only. The blocking means are formed by portions of the webs (P1 to P4) projecting into the guiding paths (17, 18, 19).</p> |
