Method for manufacturing a seat post of a bicycle

Details Method for manufacturing a seat post of a bicycle Method for manufacturing a seat post of a bicycle

1989-12-18

1991-01-29

Larson, Lowell A.

Metal deforming

Process

Tube making or reshaping

297195, B21D 5386

Patent

active

049877640

ABSTRACT:
A method for manufacturing a seat post of a bicycle includes the following processes: tapering a free end of a cylindrical tube so as to form a tapered end; bending the tapered end of the cylindrical tube so as to form a bent end; forming the bent end of the cylindrical tube so as to form a seat support; and drilling a hole in the seat support.

REFERENCES:
patent: 3688550 (1972-09-01), Stanley
patent: 4263799 (1981-04-01), Motizuki
patent: 4275922 (1981-06-01), Juy
patent: 4421357 (1983-12-01), Shimano

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