Director's chair

1. A director's chair comprising:

outer frames, connecting units, seat supporting units and back supporting units;

said outer frame in square shape comprises with a pair of horizontal units and a pair of vertical units;

a back-supporting-unit connected piece setting under said horizontal unit at the corner;

a stopper setting inside of each front and rear vertical unit which is respectively capped with sliding piece 1 and sliding piece 2 sliding up and down along said vertical unit;

connecting units which are pivotally crisscrossed with each other to form a U shaped and an up-side-down U shaped connecting structure;

the front protruding end of said seat supporting unit is curved, the front end near the protruding part is joined to said sliding piece 1 , and the rear end of said seat supporting unit is joined to said sliding piece 2 ;

said back supporting unit comprises a supporting unit and a fitting seat wherein a concave is inside and a movable piece is at the bottom of said fitting seat, to join said outer frame and said back-supporting-unit connected piece via said movable piece.

2. A director's chair as recited in claim 1 , wherein said sliding piece 1 and said sliding piece 2 can be slide up and down along said vertical unit.

3. A director's chair as recited in claim 1 , wherein connecting structure 1 is located in front of the whole structure wherein two ends of the U shape are joined to said sliding piece 1 on each vertical unit;

two ends of the up-side-down U shape are fixed to retaining spot 1 on each vertical unit;

connecting structure 2 is located on the backside of the whole structure wherein two ends of the U shape are joined to said sliding piece 2 on each vertical unit;

two ends of the up-side-down U shape are fixed to retaining spot 2 on each vertical unit;

said sliding pieces are located above said retaining spots.

4. A director's chair as recited in claim 3 , wherein said retaining spots 2 are higher than said retaining spots 1 , therefore, said connecting structure 2 is located higher than said connecting structure 1 .

5. A director's chair as recited in claim 1 , wherein said fitting seat on said back-supporting-unit connected piece can be set without said movable piece;

a protruding piece on said sliding piece 2 is provided;

a fitting hole is provided on said fitting seat of said back supporting unit, and then connect sliding piece 2 and said fitting seat via a linking member;

a linking hole and a linking cavity is on said linking member;

said linking hole on said linking member connects with said fitting hole on said fitting seat, and said protruding piece on said sliding piece 2 wedges in said linking cavity, to set said linking member outside of said sliding piece 2 and said fitting seat.