Mitutoyo Mfg. Co., Ltd.

Yoshimitu Karahashi

Mineo Yamauchi

A micrometer wherein two or more spindles are disposed on one and the same axis, a spindle in contact with a workpiece to be measured is made unrotatable and a thimble is reduced in diameter. This micrometer comprising a main body (1, 101), a first spindle (15) threadably coupled to the main body and integrally rotatably connected to the thimble (17) and a second spindle (46, 146) connected to the first spindle (15) through a connecting mechanism (70, 150), the connecting mechanism (70, 150) including a contact member (61, 161) and a bearing (53, 153) for transmitting only the axial movement of the first spindle (15) to the second spindle (46, 146).

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Kawasaki, Japan

Yoshimitu Karahashi