Joint assembly permitting limited transverse component displacement

A joint assembly permitting limited transverse component displacement along at least first, second and third axes, comprising:

• a first subunit and a second subunit, each subunit having a transverse opening in a first end thereof;
• a connecting body having a first member extending from a first end thereof and a second member extending from an opposite second end thereof;
• an intermediary body having a transverse opening in a first end thereof and a first member extending from an opposite end thereof;
• the first member of the connecting body being adapted to be received into the transverse opening in the first subunit to permit limited displacement along the first axis, which is parallel to the transverse opening in the first subunit, and the second member of the connecting body being adapted to be received into the transverse opening in the second subunit to permit limited displacement along the second axis, which is parallel to the transverse opening in the second subunit, and the first member of the intermediary body being adapted to be received into the transverse opening in the second subunit to permit limited displacement along the third axis, which is parallel to the transverse opening in the second subunit;
• and
• means for biasing the first member of the connecting body to a coaxial longitudinal alignment of the connecting body with the first subunit, the means for biasing is disposed within the respective transverse openings of the first subunit and the intermediary body such that the first and second members of the connecting body are operatively connected to the first subunit and the intermediary body.