Patent ID: 6953300
Filing Date: 2005-10-11
Classification: F16B,Y10S,Y10T

Abstract:
1. A combining device capable of being embedded into an object comprising: an embedding unit having an axis, a first end to be embedded into said object, and a second end having a means for elastic buckling which permits a radial displacement of said second end; a tubular hollow coupling unit having an inner surface and an enlarged internal diameter portion which forms a channel; and a sliding sleeve for surrounding the second end of the embedding unit to reduce friction between the embedding unit and the hollow coupling unit as the second end of the embedding unit is received in the hollow coupling unit; wherein in assembly, an axial load is applied to the second end of the embedding unit causing the means for elastic buckling to communicate with the channel of the hollow coupling unit; the embedding unit is tightly engaged with the hollow coupling unit; and the first end is axially received in the embedded object so that the object bears said axial load; wherein a middle section of the sliding sleeve has a plurality of longitudinal outwardly bowed strips; the sliding sleeve is made of metal and is slightly elastic for encasing the second end; and the strips are convex and configured to facilitate insertion of the embedding unit into the hollow coupling unit; wherein an outer surface of the first end of the embedding unit is formed with a plurality of tapered rings; each tapered ring has an annular flange portion extending radially outwardly, a cylindrical portion concentric with said axis, and an annular tapered surface extending from said annular surface to the outer surface of the first end such that the tapered rings generally converge toward the object; wherein in joining the embedding unit and object, an external surface of each tapered ring is adapted to tightly engage the object for providing a reactive force to support the object.