Device for adjusting the seat back angle in a wheelchair and a wheelchair comprising such a device

2:

• Device according to claim 1, wherein the locking of the seat back angle is obtained by two spring release locking pins mounted on both sides of the seat module and manually operable through a single actuating means.

3:

• Device according to claim 2, wherein said actuating means is a string.

4:

• Device according to claim 1, wherein said excenter member is perforated by a third hole centered on said axis of symmetry of the excenter member, said at least two first holes, being excentered with regard to said axis of symmetry.

5:

• Device according to claim 1, wherein said excenter member is provided on both of its sides with respective indexes positioned to cooperate with notices of inclination angle of the seat back module in such a way to indicate to a user how to position the member into the recess, by positioning said excenter member with its index in front of the desired angle notice.

6:

• Device according to claim 1, wherein said excenter member has a square outer shape.

7:

• Wheelchair comprising a seat back module movably coupled to a seat module and comprising a device as claimed in claim 1.