Abstract: A seat which can be converted into a couchette with a deformable armrest, comprising a squab structure (1) and a backrest structure (2) mounted so as to pivot with respect to the squab structure (1) between a raised position and an elongated position, and a deformable structure (3) comprising an upright (4) and a support member (5), the upright (4) being pivotally connected at one of its ends to the front part (1a) of the squab structure (1) and at its other end to the front part (5b) of the support member (5) so that the deformable structure (3) forms an armrest when the backrest structure (2) is in the raised position and so that the upright (4) and the support member (5) come into the line with each other at the level of the squab structure (1) and backrest structure (2) when the latter is in the elongated position.

Abstract: A seat (1) for a vehicle such as an aircraft, comprises a back rest structure (3) and a squab structure (2) mounted so as to pivot with respect to the back rest structure (3), a structure (5) supporting the squab structure (2) and the back rest structure (3), the back rest structure (3) being connected to the support structure (5) by a pivot connection (10), and a leg rest (4) connected by a pivot connection (6) to the front end of the squab structure (2), characterised in that it comprises mechanical synchronisation mechanism (15) able to synchronise the movements of the back rest structure (3) and of the leg rest (4).

Abstract: The invention relates to a seat which can be converted into a couchette with a deformable armrest, comprising a squab structure (1) and a backrest structure (2) mounted so as to pivot with respect to the squab structure (1) between a raised position and an elongated position, and a deformable structure (3) comprising an upright (4) and a support member (5), the upright (4) being pivotally connected at one of its ends to the front part (1a) of the squab structure (1) and at its other end to the front part (5b) of the support member (5) so that the deformable structure (3) forms an armrest when the backrest structure (2) is in the raised position and so that the upright (4) and the support member (5) come into line with each other at the level of the squab structure (1) and backrest structure (2) when the latter is in the elongated position.

Abstract: A seat (1) for a vehicle such as an aircraft, comprising a back rest structure (3) and a squab structure (2) mounted so as to pivot with respect to the back rest structure (3), a structure (5) supporting the squab structure (2) and the back rest structure (3), the back rest structure (3) being connected to the support structure (5) by a pivot connection (10), and a leg rest (4) connected by a pivot connection (6) to the front end of the squab structure (2), characterised in that it comprises mechanical synchronisation means (15) able to synchronise the movements of the back rest structure (3) and of the leg rest (4), the said mechanical synchronisation means (15) being connected: