Magnetic joint

A magnetic joint having a first portion and a second portion,

• one said portion being of a recessed, concave or female shape with at least one physically ramping wall to form a physical slide into engagement, the other said portion being physically inter-fitting protruding, convex or male shape, one portion having at least one permanent magnet and the other portion being magnetically inter-fitting, either by permanent magnet or magnetic material, said physically ramping wall to be at an angle of greater than 3 degrees from the axis of joint connection, said engagement is mostly physically inter-fitting from rotation about the axis, from sliding perpendicular to the axis and from pulling out axially, said ramps being linear or curved.

A magnetic joint having a first portion and a second portion,

• one said portion being of a recessed, concave or female shape with at least one permanent magnet ramping wall to form both a physical and magnetic slide into engagement, the other said portion being inter-fitting both magnetically and physically, said portions being magnetically attractive by either permanent magnet or magnetic material, said magnetic attraction to be attracting at a radial angle from the axis of joint connection said angle being greater than 3 degrees, said physically ramping wall to be at an angle of greater than 3 degrees from the axis of joint connection, said engagement being both magnetically inter-fitting and physically inter-fitting, said ramps being linear or curved.