Patent ID: 6176021
Filing Date: 2001-01-23
Classification: G01B

Abstract:
A micrometer having a main body holding an anvil at one end portion thereof and a spindle, moving toward and away from said anvil, at the other end portion thereof through an inner sleeve,wherein said main body has a frame in a designated shape and size;said frame has an anvil holding portion which holds said anvil at said one end portion thereof, and an inner sleeve holding portion which holds said inner sleeve at the other end portion thereof, the anvil holding portion and the inner sleeve holding portion being formed by a bending process;said frame is formed with a pair of frame elements of approximately symmetrical configuration which are formed by bending metal plates stamped out in the designated shape and size; andan outer surface of said frame is covered with resin and at least a portion of a space between the pair of frame elements is filled with the resin, to rigidly combine the pair of frame elements the resin being integrated to the frame member by injection molding.