Tube seat with a frame structure for a bicycle

A tube seat 20, made of titanium alloy, for fabricating a frame of a bicycle includes a main tube and at least one branch tube 21 extending outward from said main tube. The branch tube is arc-welded to a metal tube 30 made of titanium alloy. The tube seat may fabricated as an upper tube seat, a five...

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Bibliographische Detailangaben
1. Verfasser:	CHINGI CHUNG
Format:	Patent
Sprache:	eng
Schlagworte:	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
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Beschreibung
Zusammenfassung:	A tube seat 20, made of titanium alloy, for fabricating a frame of a bicycle includes a main tube and at least one branch tube 21 extending outward from said main tube. The branch tube is arc-welded to a metal tube 30 made of titanium alloy. The tube seat may fabricated as an upper tube seat, a five-way tube seat, a head tube seat, a hook tube seat, a crank arm seat, and a fork seat. The metal tube may form a seat tube, a top tube, a seat stay, a down tube, a chain stay, a crank arm, and a fork for forming the frame. The tube seat may be provided with a stuffing ring 22 to assist in welding the tube 30 to the seat 20.