Patent ID: 7913732

Claim:
A runflat insert attachment and adjustment apparatus comprising: a pin secured in and extending from one of a first and second portion of the insert to another of the first and second portion of the insert; a translator mounted in one of the first and second portions of the insert and configured to move the pin to selectively tighten and loosen the insert about a wheel; a head arranged for engagement and rotation by a tool; a converter connected to the head and the translator and configured to receive rotation of the head and transfer it to the translator in a form the translator can use; wherein a shaft portion of the pin carries threads and is engaged and selectively translated by a portion of at least one gear; wherein the at least one gear comprises a worm and a pinion, the pinion further comprising external teeth and a threaded central bore that together with the threads of the shaft portion comprises the translator, the worm and pinion teeth comprising the converter; a second shaft about which the worm is slidably and rotatably mounted, the second shaft supporting the head for rotation therewith; and a second pin projecting radially from the second shaft and engaging a notch in a first end of the worm, at least one spring engaging a second end of the worm and biasing the worm toward the second pin, the notch comprising a ramp on a tightening side so that the worm rotates with the second pin until torque applied to the head exceeds a restraining force imposed on the second pin by the bias.