| 摘要 |
A belt unit for a continuously variable transmission that transmits power from a primary pulley to a secondary pulley, may include at least a band overlapped each other, and a segment including a body base and a locking end portion which are connected by a neck therebetween, wherein an upper surface of the at least a band is coupled to the locking end portion and a lower surface of the at least a band is coupled to a segment shoulder of the body base, and wherein lower grooves are formed at lower portions of the neck between the neck and the segment shoulder of the body base at both sides of the neck such that an upper surface of the respective body base is higher than the corresponding lower groove to form a contact radius difference between the lower groove and the upper surface of the body base.
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