Spline counting mechanism

摘要

A spline counting mechanism for determining the number of splines on a shaft. The spline counting mechanism includes a plunger urged into engagement with the shaft and adapted to be rotated with respect to the shaft. The plunger is adapted to engage each spline on the shaft as the plunger is rotated through one revolution and is operable to establish and cut off electrical continuity in an electrical circuit as the plunger rotates into engagement with and then beyond each spline. The mechanism further includes a digital counter for counting and displaying the number of times that electrical continuity is established in the electrical circuit, this number being equal to the number of splines on the shaft.