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US 5,026,282 AGranted
Physiological stereo articulator
OwnerIsao Koikeinventor
Life of this patent
Estimating the term…
Abstract
This invention relates to a physiological stereo articulator comprises a maxillary mechanism and a mandibular mechanism, and the lower frame member in the mandibular mechanism can turn about a center which is shifting while opening and closing as the human mandible does, and at the same time with the shifting of the center of turning, the vertical swinging of the lower frame member is caused. This construction permits simulation of the movement of the lower frame member to practical movement of the human mandible.
Claims11
An articulator comprising:
- a frame having a frame base and a frame upright;
- a maxillary mechanism comprising an upper frame member pivotably mounted on said frame upright for pivotable movement about a horizontal axis;
- a mandibular mechanism comprising a base part pivotably mounted on said frame upright for pivotal movement about a vertical axis, said mandibular mechanism comprising a lower frame member and support means supporting said lower frame member;
- said support means comprising operating blocks pivotably mounted on said base part, said operating blocks having extendable and retractable activators, pivot means pivotably mounting said lower frame member on said activators, said operating blocks having an inclined surface engageable by said lower frame member as said activators extend and retract such that said engagement effects pivoting of said operating blocks to thereby effect raising and lowering of said lower frame member.
1 more element
An articulator comprising:
- a frame having a frame base and a frame upright;
- a maxillary mechanism comprising an upper frame member pivotably mounted on said frame upright for pivotable movement about a horizontal axis;
- a mandibular mechanism comprising a base part mounted on said frame upright for pivotal movement about a vertical axis, said mandibular mechanism comprising a lower frame member and support means supporting said lower frame member;
- said support means comprising operating blocks pivotably mounted on said base part, said operating blocks having extendable and retractable activators, pivot means pivotably mounting said lower frame member on said activators;
- said frame base having a guide block underlying said lower frame member, said guide block having a depression formed by engageable walls which are inclined relative to horizontal, said lower frame member having a guide pin operable in said depression and operable to engage said engageable walls for moving said lower frame member.
2 more elements
An articulator comprising:
- a frame having a base and a frame upright;
- a maxillary mechanism comprising an upper frame member pivotably mounted on said frame upright for pivotable movement about a horizontal axis;
- a mandibular mechanism comprising a base part pivotably mounted on said frame upright for pivotal movement about a vertical axis, said mandibular mechanism comprising a lower frame member and support means supporting said lower frame member;
- said support means comprising operating blocks pivotably mounted on said base part, said operating blocks having extendable and retractable activators, pivot means pivotably mounting said lower frame member on said activators, said operating blocks having surface means engageable by said lower frame member as said activators extend and retract such that said engagement effects pivoting of said operating blocks to thereby effect raising and lowering of said lower frame member;
- and
- fulcrum engagement means mounted on said frame upright and engageable by said lower frame member to define a fulcrum axis for said lower frame member, the position of said fulcrum axis on said lower frame member changing as said lower frame member is raised and lowered by said extendable and retractable activators.
3 more elements
Dependencies are inferred from the claim text.