Support for fixing objects removably

An ashtray, removably mountable in projecting manner to a substantially vertical structural member, said member having a substantially U-shaped cross-section including two arms and a circular profile connecting said arms, each of said arms being defined by an outer wall adjacent to the outer circular profile, an inner wall and an edge wall connecting the inner wall with the outer wall, said ashtray including a substantially parallelepipedal hollow body having at one side thereof a substantially circular cylindrical portion for cooperating with and complementary to said circular profile of said structural member and two extensions of said body, arranged at two sides of said cylindrical portion, for cooperating with the outer walls of said arms, one of said two extensions having an end wall inclined with respect to said one side of said hollow body ashtray, said one extension overlying partially a portion of one outer wall of an arm of said two arms, the other of said extensions being parallel with said one extension and overlying the entire depth of the outer wall of the other arm of said arms, said other extension having in an upper portion and near to the distal end thereof extending beyond the depth of said outer wall a projection opposite said cylindrical portion for cooperating with the edge wall of the other of said two arms, said projection being provided with a lug cooperative with the inner wall of said other arm adjacent said edge, said cylindrical portion and said projection bearing against said leg when in the mounted position, so that the centre of gravity of the ashtray is completely outside said structural member, said cylindrical portion, said projection and said lug defining a recess for holding said edge wall and being spaced from one to another in such manner that the ashtray may be removed by tilting it upwardly so as to disengage the lower portion of said one extension from said one arm so that the inclined end wall thereof may pass by the structural member and thereafter rotating the ashtray with respect to the structural member so as to disengage the lug of the projection from the inner wall of said other arm of the structural member and remove said edge wall from said recess.