Circumference length no adjusting the device and the circumference length no adjusting method for an endless - metal ring

摘要

There are a circumference length no adjusting device and a circumference length no adjusting a method for producing an endless metal ring is realized, which is used for a cvt. A peripheral length l (1) of a tire in front of a setting, a desired peripheral length l (4) and a return spring rate α are read out (s100, s110, s120), it is the return spring rate α, based on the volume of the tire in front of the adjustment, corrected (s150), it is the return spring rate α, on the basis of the temperature of the tire at the time of the adjustment, corrected (s180), and a peripheral length l (2) at the time of the adjustment is calculated, based on the peripheral length l (1) in front of the adjustment, the desired peripheral length l (4) and the corrected return spring rate α (s190), whereby the accuracy of the peripheral length is improved.