Vibration dampener for coil tension window balance spring

F - Mech Eng,Light,Heat,Weapons – 16 – F

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Details

108/45.1

F16F 7/10 (2006.01) F16F 1/13 (2006.01)

Patent

CA 1263565

TITLE VIBRATION DAMPENER FOR COIL TENSION WINDOW BALANCE SPRING ABSTRACT Molded resin vibration dampener 10 is mounted on coiled tension window balance springs 15 arranged within spring covers. A resin wall 13 of the vibration damp- ener, shaped for fitting around the tension spring, has a slot oriented longitudinally of the spring, and the wall is flexible enough to allow the slot to be spread open so that the body can be pressed onto a mid-region of the spring. Resilient fins 12 extend obliquely outward from the body far enough to engage an interior surface of the spring cover and thereby hold the body and the spring spaced away from the spring cover to prevent rattling of the spring within the cover.

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