Patent ID: 6517347
Filing Date: 2003-02-11
Classification: A61C

Abstract:
A mounting disk comprising a lower rotary plate having at its substantially central portion a mounting portion for a vertical rotary shaft for mounting to a base of an articulator, and an upper rotary plate superimposed on top of said lower rotary plate, said upper rotary plate having on its top surface a mandible model fixing portion for mounting a mandible model thereon, said lower rotary plate and said upper rotary plate being rotatably coupled to each other by way of a pivot member disposed at one end of each of said lower an upper rotary plates;said mounting disk further comprising indication means indicative of a relative position between said lower rotary plate and said upper rotary plate and locking means arranged to lock a relative position between said lower rotary plate and said upper rotary plate; said locking means including an arcuate skirt, a horizontally extending slit formed in said skirt, and a locking rod passing through said slit, said arcuate skirt being formed by extending said arcuate surface of said other of said lower rotary plate and said upper rotary plate so as to cover said indication scale provided on said arcuate surface of said one of said lower rotary plate and said upper rotary plate, said locking rod having an extremity screwed into a threaded hole formed in said arcuate surface having said indication scale, said locking rod having at its midway an enlarged portion to fixedly tighten said skirt.