Baby carriage capable of adjusting recline angle of seat back

1. A baby carriage comprising:

a frame having a first end and a second end opposite to the first end;

a lock mechanism having a housing and a lock member, the housing being disposed on the first end, a through hole being formed on the housing, the lock member being disposed in the through hole;

a seat back having a roller; and

a webbing passing through the through hole, wound around the roller and a back side of the seat back and attached on the second end, the webbing being clamped in the lock member, so as to keep the seat back at a recline angle;

wherein when the lock member is operated to release the webbing, the webbing is capable of moving within the through hole and the seat back is capable of rotating about the webbing by the roller, so as to adjust the recline angle of the seat back.

2. The baby carriage of claim 1 , wherein the lock member is pivotally disposed in the through hole, such that the lock member is capable of being pressed to rotate, so as to release the webbing.

3. The baby carriage of claim 1 , wherein when the frame is placed on ground, the first end is lower than the second end.

4. The baby carriage of claim 1 , wherein when the webbing is released and pulled toward a direction away from the housing, the recline angle of the seat back decreases; and when the webbing is released and loosened, the recline angle of the seat back increases.

5. The baby carriage of claim 1 , wherein the frame has a traverse shaft and one end of the seat back is pivotally connected to the traverse shaft.

6. The baby carriage of claim 1 , further comprising a ring member disposed on a free end of the webbing, wherein the free end is close to the first end and exposed out of the through hole.