| 摘要 |
<p>Nylon strip wrapped peripherally around rim of spoked wheel having radial spoke apertures and valve stem hole, nipples extending through apertures and connected, respectively, to outer ends of spokes, strip frictionally engaging outer ends of nipples to prevent puncture of subsequently mounted tire on rim by accidentally loosened nipple, and having aperture cut therethrough after mounting on rim to coincide with valve stem hole, together with novel method of so mounting strip on wheel rim and apparatus for accomplishing same comprising strapping means, wheel support means including pin cooperating with valve stem hole to properly locate wheel in a loading position which is adjustable to accommodate different diameter wheels, manually operable control means to initiate lowering of support means, switch means automatically operable to stop support means, to present wheel to strapping means and initiate cyclic actuation thereof to wrap nylon strip peripherally around rim, tension, cut and secure ends of strip together, and piercing means operable to cut an aperture in mounted strip coinciding with valve stem hole and to initiate upward movement of support means to return same to loading position.</p> |
