(57) For the assembling of a structure comprising a number of elongated construction elements
(2), primarily lighting units, a joining member (4) is disclosed which allows for
the elongated elements to be endwise joined with any desired mutual direction. The
joining member is a ball (4) having in the six main directions holding holes (10)
for respective tightening bolts (14) of which these in use are each received through
an elongated diametral slot (28) in a segment disc (26) mounted inside an end portion
of a tube bushing (20) projecting from the ball surface; the peiphery of the segment
disc (26) steps on an internal end flange (24) of the bushing (20), such that the
bushing is fixed to the ball surface when the bolt (14) is screwed home. The bushing
(20), the outer end of which is used for holding the associated elongated construction
element (2), may be fixed to the ball surface anywhere inside an area defined or described
by the segment disc (26) being rotated about the bolt (14) with the latter placed
at one end of the said slot (28), whereby the positions and the directions of the
elongated elements (2) can be adjusted in a stepless manner, without the remaining
free surface portions of the ball (4) being disfigured by particularly visible non-used
fastening means.
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