| 摘要 |
A parking operation mechanism is provided with: an adjusting spindle of an adjuster mechanism, a cam shaft which is located orthogonally to the adjusting spindle and has a parking lever at one end thereof; and a thrust transmitting assembly which is arranged between the cam shaft and the adjusting spindle, and has rolling rollers which generate thrust. A rolling curve surface provided on the cam shaft is formed on a recess groove extending to the shaft end portion. The rolling rollers are housed in the rolling curves surfaces. Their axial movement is regulated by a regulating member.
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