Curtain airbag cushion

1. A curtain airbag cushion comprising:

a folded portion that comprises a first folded portion formed by folding one end of an airbag cushion having a first side and a second side opposite to the first side, with the first side overlapping, and a second folded portion with the second side overlapping which is formed by folding one end of the first folded portion toward the first side or the second side, and that is formed by folding one end of the second folded portion toward the first side or the second side, with the second side overlapping; and

a straight portion that extends straight from the folded portion, at the other end of the airbag cushion, with the second side overlapping the folded portion,

wherein the second folded portion is formed by folding one end of the first folded portion to the other end of the first folded portion.

2. The curtain airbag cushion according to claim 1 , further comprising a third folded portion formed with the second side overlapping, and connecting the folded portion with the straight portion.

3. The curtain airbag cushion according to claim 2 , wherein the third folded portion bends at 90° from the straight portion to overlap the folded portion.

4. The curtain airbag cushion according to claim 2 , wherein the width of the third folded portion is the same as the width defined by the folded portion and the straight portion.

5. The curtain airbag cushion according to claim 1 , wherein the first side of the airbag cushion faces a passenger.

6. The curtain airbag cushion according to claim 1 , wherein one end of the folded portion is folded at 180° toward the second side such that the straight portion overlaps the folded portion.

7. A curtain airbag cushion comprising:

a folded portion that comprises a first folded portion formed by folding one end of an airbag cushion having a first side and a second side opposite to the first side, with the first side overlapping, and a second folded portion with the second side overlapping which is formed by folding one end of the first folded portion toward the first side or the second side, and that is formed by folding one end of the second folded portion toward the first side or the second side, with the second side overlapping;

a straight portion that extends straight from the folded portion, at the other end of the airbag cushion, with the second side overlapping the folded portion; and

a tether connecting joint of the folded portion and the straight portion.

8. A curtain airbag cushion comprising:

a folded portion that comprises a first folded portion formed by folding one end of an airbag cushion having a first side and a second side opposite to the first side, with the first side overlapping, and a second folded portion with the second side overlapping which is formed by folding one end of the first folded portion toward the first side or the second side, and that is formed by folding one end of the second folded portion toward the first side or the second side, with the second side overlapping: and

a straight portion that extends straight from the folded portion, at the other end of the airbag cushion, with the second side overlapping the folded portion,

wherein the folded portion is formed by folding one end of the second folded portion to the other end of the second folded portion.

9. A curtain airbag cushion comprising:

a folded portion that comprises a first folded portion formed by folding one end of an airbag cushion having first side and a second side opposite to the first side, with the first side overlapping, and a second folded portion with the second side overlapping which is formed by folding one end of the first folded portion toward the first side or the second side, and that is formed by folding one end of the second folded portion toward the first side or the second side, with the second side overlapping; and

a straight portion that extends straight from the folded portion, the other end of the airbag cushion, with the second side overlapping the folded portion,

wherein the folded portion is formed by folding about ⅘ of the up-down length of the airbag cushion.

10. A curtain airbag cushion comprising:

a folded portion that comprises a first folded portion formed by folding one end of an airbag cushion having a first side and a second side opposite to the first side, with the first side overlapping, and a second folded portion with the second side overlapping which is formed by folding one end of the first folded portion toward the first side, and that is formed with the second side overlapping by folding one end of the second folded portion toward the first side;

a straight portion that is formed straight at the other end of the airbag cushion, with the second side overlapping the folded portion; and

an extender that connects the folded portion with the straight portion, with the second side overlapping the folded portion,

wherein the second folded portion is formed by folding one end of the first folded portion to the other end of the first folded portion.

11. The curtain airbag cushion according to claim 10 , wherein the first side of the airbag cushion faces a passenger.

12. The curtain airbag cushion according to claim 10 , wherein the folded portion is formed by folding one end of the second folded portion to the other end of the second folded portion.

13. The curtain airbag cushion according to claim 10 , wherein one end of the folded portion is folded at 270° toward the second side such that the straight portion overlaps the folded portion, and the second side of the extender overlaps the folded portion.