Brake drawing system

Abstract

A brake drawing system applied in bikes and any motor vehicle provided with handbrake and pedal driven brake operates by having a pull rod to drive a push rod to engage in linearly reciprocal motion for activating the brake; a brake lever pin on the pull rod constituting transmission between push rod and pull rod; the push rod penetrating an adjustment bushing on the brake lever pin to adjust brake openness by changing relative positions between sleeve and brake lever pin without interfering with the push rod to maintain pull rod openness as adjusted.

1 . A brake drawing system to activate brake installation by having a brake pull rod to drive a push rod to engage in linearly reciprocal motion; a pin lever being axially provided on the brake pull rod to constitute transmission between the push rod and the brake pull rod; an adjustment bushing be fastened to the pin lever to permit insertion by the push rod to adjust openness of the brake pull rod without inferring with revolving at own axis by the push rod by changing relative positions between the adjustment bushing and the pin lever.  
   
   
       2 . The brake drawing system of  claim 1 , wherein a gradation is provided at the tail of the push rod that penetrates the adjustment bushing, and is clamping by a locking ring to where the push rod leaves the adjustment bushing to constitute coupling of transmission between the push rod and the adjustment bushing.  
   
   
       3 . The brake drawing system of  claim 1 , wherein s locking ring is each to the push rod in relation to where externally to both ends of an adjustment bushing to constitute coupling between the push rod and the adjustment bushing.  
   
   
       4 . The brake drawing system of  claim 1 , wherein an adjustment nut is externally disposed to where the adjustment bushing is provide to the brake lever pin.