Adjustable handle-bar stem for bicycle

• Main Author: KUNHE LI
• Format: Patent
• Language: English
• Published: 17.12.1997
• Edition: 6
• Subjects: CYCLE AXLE SUSPENSIONS; CYCLE FRAMES; CYCLE SIDE-CARS, FORECARS, OR THE LIKE; CYCLE STEERING DEVICES; CYCLES; LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS; PERFORMING OPERATIONS; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FORCYCLES; TRANSPORTING

The utility model provides an adjustable vertical rod for a bicycle head. The utility model is characterized in that both sides of a shaft journal part on the top end of the vertical rod of the bicycle head are respectively provided with a concave hole in a concave way, and an engaging ring is arranged in each concave hole. A plurality of convex clamping teeth are arranged on end surfaces on both sides of the engaging ring in an annular way. Besides, when a connecting sleeve which is divided into two symmetrical components is fixedly locked on a vertical rod body, the connecting sleeve contacts with the clamping teeth. When a locking assembly is penetrated through the vertical rod, the engaging ring and the connecting sleeve and locking actions are carried out, and the clamping teeth of the engaging ring can be inlaid in the vertical rod and the connecting sleeve to prompt the good combining effect of the vertical rod, the engaging ring and the connecting sleeve. Adjusting actions are very easy after the locking assembly is loosened and released.