Patent ID: 7810614

Claim:
A swivel device for bicycles comprising: a first ring movably coaxially adapted to be mounted on a head tube of a bicycle, the first ring having a plurality of first protrusions formed on a bottom thereof and extending axially downwardly therefrom, each first protrusion connected to a first brake cable; a second ring movably coaxially adapted to be mounted on the head tube of the bicycle and locating below the first ring, the second ring swivelably enclosed and retrained by the first ring, the second ring having a plurality of second protrusions formed on a top thereof and extending axially upwardly therefrom, each second protrusion connected to a second brake cable, wherein when the first ring engages with the second ring, the first protrusions projecting from a bottom of the second ring, the second protrusions passing through the first ring and projecting from a top of the first ring; and a positioning sleeve mounted on the head tube and enclosing the first and the second rings for positioning the first and the second rings in place and protecting the first and the second rings from being worn, the positioning sleeve having a plurality of passages defined in a periphery thereof and extending through the periphery thereof for corresponding to the first ring, each first brake cable inserted into a corresponding passage to connect with the first ring within the positioning sleeve; wherein the first ring is able to pivotally swivel relative to the second ring, when braking, the second brake cables dragged to simultaneously lift the second ring upwardly along the head tube, the first ring moved upwardly by the lifted second ring to simultaneously drag the first brake cables upwardly.