Patent ID: 7143620
Filing Date: 2006-12-05
Classification: B21F

Abstract:
1. A spring manufacturing apparatus comprising: a wire feedout unit that feeds out a wire into a spring forming space above a forming table; a plurality of tool supporting units that can be arranged radially on said forming table from the spring forming space, wherein each of the tool supporting units supports a tool to be slidable toward the spring forming space; a plurality of driving force transmitting units that are selectively connected to each of the tool supporting units on said forming table and transmit a driving force to drive the tool by each of the tooling supporting units; and a single gear which transmits the driving force to said plurality of driving force transmitting units, wherein said driving force transmitting unit and the tool supporting unit are formed separately, each of said driving force transmitting units has a transmission gear which meshes with said single gear, as a common driving source, and a position of said driving force transmitting unit on said forming table can be changed independently of the tool supporting unit while allowing the transmission gear to mesh with said single gear.