Patent ID: 6978985
Filing Date: 2005-12-27
Classification: F16F

Abstract:
1. A non-sectional locking buffer device, comprising: a cylinder having an inner surface which defines a buffer chamber, said buffer chamber having spaced apart ends; a central shaft defining an outer surface; a torsion spring mounted to said central shaft on its outer surface, both said central shaft and said torsion spring being mounted in said buffer chamber between said spaced apart ends; a spring collar located adjacent one of said spaced apart ends; a reposition spring located between said spring collar and said cylinder; and a plurality of ball bearings located in said buffer chamber adjacent to said torsion spring at the other end of said spaced apart ends, wherein: screw grooves are provided in one of: said outer surface of said central shaft, and said inner surface of said cylinder, in which said plurality of ball bearings are engaged, utilizing a screw ascending and descending principle as a buffer function.