Patent ID: 8857300
Filing Date: 2014-10-14
Classification: B25B,F16B,G09F,Y10S,Y10T

Abstract:
1. A joint recognition member, comprising: a joint body, which has a one piece structure, having a cylinder formed at one end and a polygonal prism integrally formed at an opposed end, wherein said cylinder has a polygonal hole formed at an opening end thereof and a narrow neck part integrally formed at a position between said opening end of said cylinder and said polygonal prism, wherein a ring groove is formed at said narrow neck part of said joint body; and a ring rotatably wrapped around said narrow neck part of said joint body, wherein said ring is stationary when said joint body is rotated, wherein said ring has a protruding ring formed at an inner surface and engaged with said ring groove to enable said ring to be freely rotated at said narrow neck part which is formed at said cylinder of said joint body and prevent any longitudinal movement along said narrow neck part of said joint body, wherein a tapered inner surface of said ring abuts against a tapered axially facing outer edge on top of said narrow neck part, wherein an axially facing bottom surfaced of said ring is abutted at an axially facing top surface of said cylinder, wherein said protruding ring has a curved surface formed at an inner wall thereof that is tapered from bottom to top and a barb part formed on top of said curved surface of said protruding ring such that when said protruding ring is engaged with said ring groove, said curved surface of said protruding ring enables said protruding ring to mount in said ring groove while said barb part of said protruding ring is leaned against a top surface of said ring groove so as to prevent said protruding ring to be removed from said narrow neck part of said joint body in a direction towards said polygonal prism, wherein said ring is prohibited to move to said cylinder from said polygonal prism due to the abutment of said bottom surface with said top surface of said cylinder.