Patent ID: 7243762

Claim:
A bicycle handbrake operating device comprising a main member, a brake wire, a bolt member, a roller wheel, an axle member, and an operating lever; wherein said operating lever has a joining section at one end; said joining section is fitted inside a trough member of said main member; said operating lever is pin-joined to said main member by installing a bolt through a pivoting hole of said operating lever and a pin hole in the middle of said main member; said bolt is locked by a nut; and said bicycle handbrake operating device is characterized in: said main member has a curved trough at a side for holding a wire head of said brake wire; said curved trough has a wire hole allowing said brake wire to pass through said main member; a side of said joining section of said operating lever has a container trough for accommodating said roller wheel; said roller wheel is pin-joined to said operating lever by installing said axle member through an axle hole of said operating lever and a center hole of said roller wheel; said brake wire goes around said roller wheel along a wheel gorge of said roller wheel; said brake wire extends out through a mouth member of said main member; gripping said operating lever causes said roller wheel to shift which in turn pulls said brake wire along a tangent line of said roller wheel with generally no angular movement.