Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Comtop Technology Co LtdfiledCriticalComtop Technology Co Ltd
Priority to TW97205627UpriorityCriticalpatent/TWM340374U/en
Publication of TWM340374UpublicationCriticalpatent/TWM340374U/en
A ball spiral-shaft device includes a spiral-shaft, at least one ball nut and a transmission assembly. The ball nut is sleeved through and slides along the spiral-shaft. The transmission assembly is assembled on an outer surface of the ball nut.