Panel positioning device

A panel positioning device comprising:

• a holder to which a panel is mounted;
• a holder supporting plate to which the holder is rotatable mounted;
• a middle plate interposed between the holder and the holder supporting plate;
• a first regulating plate located below the holder supporting plate;
• a second regulating plate located below the first regulating plate;
• a first side plate provided on one widthwise side of the first regulating plate;
• a second side plate provided on the other widthwise side of the first regulating plate;
• a cam member provided on the holder supporting plate so as to make contact with one side of the holder, and in which a tapped hole is formed;
• a first regulating knob provided on one side of the holder supporting plate and provided with a screw portion engaged with the tapped hole of the cam member, for regulating a relative pivot angle of the holder with respect to the holder support plate;
• a second regulating knob provided on one side of the first regulating plate and provided with a screw portion engaged with the second regulating plate, for regulating a relative lengthwise position of the first regulating plate with respect to the second regulating plate;
• a third regulating knob provided on one side of the first regulating plate and provided with a screw portion engaged with the first side plate, for regulating a relative widthwise position of the holder support plate with respect to the first regulating plate;
• a fourth regulating knob provided on one side of the first regulating plate and provided with a screw portion engaged with the second side plate, for regulating a relative pivot angle of the holder support plate about one heightwise axis of the first regulating plate with respect to the first regulating plate;
• a fifth regulating knob for regulating a regulative heightwise position of the holder support plate with respect to a side frame;
• and
• a third regulating plate lengthwisely movably mounted to the side frame, and with which the fifth regulating knob is engaged at one side thereof;
• and wherein at least one first pin is fixed to the second regulating plate, the first pin being inserted and penetrated into a corresponding side of the third regulating plate, the third regulating plate having an inclined slit extending from an upper portion of one side thereof to a lower portion of the other side thereof, the second regulating plate having at least one bracket to which the first pin is fixed, the inclined slit being formed on a side wall of the third regulating plate corresponding to the bracket of the second regulating plate.