Patent ID: 8496216

Claim:
A selectively mountable display apparatus suitable for mounting on a supporting base attached to a surface, said apparatus comprising: a cabinet containing a media presentation device, said cabinet being separate from said supporting base such that said cabinet must be combined with said supporting base in order to mount said apparatus to said surface; a mounting device disposed in said cabinet for combining said cabinet with said supporting base, said mounting device comprising an axial member disposed in said cabinet such that said cabinet may be mounted at a plurality of rotational orientations with respect to said supporting base, using said axial member as an axis of rotation; and an operating unit disposed in said cabinet for establishing or cancelling the combination of said cabinet and said base, wherein said operating unit connects said cabinet to said base using said axial member by inserting or retracting a protruding portion of said axial member disposed in said cabinet to and from said base such that said protruding portion is inserted into said base along the same line where said axial member is disposed, and such that the connection of said protruding member and said base facilitates rotation of said cabinet with respect to said base about said axial member, wherein said axial member is a pair of cylindrical polygons which are slidably supported by said cabinet, and which are disposed in a pair of protruding portions of said cabinet that extend from one end of said cabinet such that said polygons are arranged with a gap between them and in an identical center line such that the width of said gap is less than the width of said base; and wherein said polygons fit into said base to accomplish mounting of said apparatus by combining said cabinet and said base through said operating unit, which causes said pair of cylindrical polygons to retract into said cabinet along said center line in response to a manipulation of an operating member and also causes said pair of cylindrical polygons to extend from said cabinet, and where said operating unit includes stoppers for restricting movements of said cylindrical polygons which are caused by a pressing member that a user may compress or release to retract or extend said cylindrical polygons, and a movement transferring member for transferring a movement of said operating member to said axial member.