| 摘要 |
PROBLEM TO BE SOLVED: To highly accurately measure an over-pin dimension, even when a specific stroke characteristic in the vicinity of a stroke central part is set smaller than the stroke both end sides. SOLUTION: This rack bar includes a shaft part 21 and a rack tooth forming part 22 arranged in the shaft part 21 and juxtaposing a plurality of tooth parts 22a meshing with a pinion gear 13a in the axial direction. The tooth parts 22a of the rack tooth forming part 22 are formed so that the ratio of a rotation angle of the pinion gear 13a and a moving distance of the shaft part 21 is larger on both end sides in the axial direction than the stroke central part K, and is formed in a specific value in a predetermined area for sandwiching the stroke central part K. COPYRIGHT: (C)2010,JPO&INPIT
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