 Features & Function: Initial production process of S-type spring is is same as that of "Constant torque spring". Next step is to re-wind up this spring in reverse and fix it by stopper just as shown on below left side photo. Shape of this spring in natural condition after taking out stopper is as shown on right hand side photo. This spring brings about much larger torque than normal type of spring and also large number of effective rotation is available by this spring in the limited small space. By utilizing these characteristics, S-type springs are widely being used for many kinds of applications. Main application: Retractive ear phone for portable audio sets, Cord reel for electric home appliances, Tape measures, Hose reels, Retractive seat belts, Various kinds of string reels |
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