Manufacturing method of wing nuts
AssigneeTaiwan Wing Fasteners Co., Ltd.
InventorPohsi WU
Life of this patent
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Abstract
A manufacturing method of wing nuts has a round metal wire cut into segments used as billets. The method includes a basic formation directly forging the billet to become a primary body consisting of an intermediate head and two curved wings connected with two ends of the intermediate head respectively, a wing trigging employed for forging the wings of the intermediate head to become butterfly wings with a curved edge and an edge formation effected by forging the intermediate head to form a positioning groove in the center of the top and the bottom side respectively. Then the semi-finished product is finished by drilling and threading. By this method, manufacturing processes can be shortened to obtain a rapid producing rate and lessen waste volume, lowering cost and advancing competition.
Claims2
A manufacturing method of wing nuts, said method comprising:
- a basic formation utilizing a billet cut from a round metal wire to create a primary body by being directly forged by a basic wing nut mold, said primary body consisting of an intermediate head and two curved wings connected with two ends of said intermediate head respectively;
- a wing trigging employed for forging two said wings of said primary body to become butterfly wings with a curved edge by means of a curve-trigging mold;
- an edge formation effected by forging said intermediate head of said primary body to form a positioning groove in a center of a top and a bottom side of said intermediate head respectively;
- and
- a drilling done in a center of said positioning groove of said intermediate head to create a through hole that is further threaded.
Dependencies are inferred from the claim text.