Television receiver supporting structure of arm rest

A supporting structure for supporting a TV set on an armrest of a seat so that the TV set can be turned in a vertical plane between an operating position outside a cavity formed under a cocktail tray formed in the front upper portion of the armrest and a housing position within the cavity, can be turned about a vertical axis at the operating position and can be tilted with respect to the vertical axis, said supporting structure comprising:

• a hinge mechanism provided at the front upper end of the cavity;
• and
• a turning mechanism supported on the hinge mechanism and supporting the TV set so that the TV set can be turned at the operating position in both horizontal and vertical planes;
• characterized in that a hinge pin included in the hinge mechanism is provided at its one end with a diametrical through hole expanding toward the opposite open ends, a locking pin included in a locking mechanism is provided so that the extremity of the locking pin engages one of the open ends of the diametrical through hole of the hinge pin when the hinge pin is at a first predetermined angular position and engages the other open end of the diametrical through hole of the hinge pin when the hinge pin is at a second predetermined angular position differing from the first predetermined position by an angle of about 180.degree., and the hinge mechanism is interlocked with a shock absorbing mechanism.