Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
122 words
A seat for a passenger vehicle, particularly an aircraft, which seat comprises: a first fixed part for supporting the seat adjacent a floor of the vehicle; a second movable part comprising a seat pan and a back-rest; guiding means for guiding movement of the second movable part relative to the first fixed part between an upright position and a fully reclined position; and selectively operable driving means for driving progressive movement of the movable part between said positions; wherein said guiding means comprises at least one elongate track provided on said first fixed part, which track is equipped with a rack; and wherein said driving means comprises a pinion that engages said rack and a locking drive unit for driving said pinion.
Claim 2
Dependent Claim
122 words
A seat for a passenger vehicle, particularly an aircraft, which seat comprises: a first fixed part for supporting the seat adjacent a floor of the vehicle; a second movable part comprising a seat pan and a back-rest; guiding means for guiding movement of the second movable part relative to the first fixed part between an upright position and a fully reclined position; and selectively operable driving means for driving progressive movement of the movable part between said positions; wherein said guiding means comprises at least one elongate track provided on said first fixed part, which track is equipped with a rack; and wherein said driving means comprises a pinion that engages said rack and a locking drive unit for driving said pinion.
Claim 3
Dependent Claim
24 words
A seat as claimed in claim 1, wherein said locking drive unit comprises a selectively operable electric motor that is mounted on said back-rest.
Claim 4
Dependent Claim
35 words
A seat as claimed in claim 2, wherein said motor is adapted to drive two substantially coaxial drive shafts, each drive shaft carrying a pinion at an end of the shaft remote from the motor.
Claim 5
Dependent Claim
39 words
A seat as claimed in claim 1, wherein said guiding means comprises a first track following member on the back-rest, which first track following member engages the track for guiding the back-rest between the upright and fully reclined positions.
Claim 6
Dependent Claim
72 words
A seat as claimed in claim 4, wherein said back-rest component is equipped with a second track following member that also engages the track and is spaced from the first track following member, so that at each position of the movable part between the upright and fully reclined positions, the back-rest is located relative to the track at two spaced positions, thus defining the recline angle of the back-rest at each position.
Claim 7
Dependent Claim
37 words
A seat as claimed in claim 5, wherein said track is arcuate such that as the back-rest is moved between the upright and fully reclined positions, it is moved through a series of predetermined, ergonomically comfortable positions.
Claim 8
Dependent Claim
18 words
A seat as claimed in claim 1, wherein said movable part of the seat further comprises a leg-rest.
Claim 9
Dependent Claim
45 words
A seat as claimed in claim 7, wherein said leg-rest is pivoted to the seat pan and wherein a locking drive means is provided between the seat pan and the leg-rest for driving movement of the leg-rest between a raised position and a lowered position.
Claim 10
Dependent Claim
35 words
A seat as claimed in claim 8, wherein said controlling means are provided for controlling the position of the leg-rest according to the position of the movable part between the upright and fully reclined positions.
Claim 11
Dependent Claim
20 words
A seat as claimed in claim 1, wherein said seat pan and back rest are freely pivoted to one another.
Claim 12
Dependent Claim
44 words
A seat as claimed in claim 10, wherein said guiding means are arranged such that as the movable part of the seat is moved from the upright position towards the fully reclined position, the back-rest is lowered translationally towards the floor of the vehicle.
Claim 13
Dependent Claim
122 words
A passenger vehicle particularly an aircraft, comprising at least one which comprises a first fixed part for supporting the seat adjacent a flow of the vehicle; a second movable part comprising a seat pan and a back-rest; guiding means for guiding movement of the second movable part relative to the first fixed part between an upright position and a fully reclined position; and selectively operable driving means for driving progressive movement of the movable part between said positions; wherein said guiding means comprises at least one elongate track provided on said first fixed part, which track is equipped with a rack; and wherein said driving means comprises a pinion that engages said rack and a locking drive unit for driving said pinion.
Claim 14
Dependent Claim
122 words
A passenger vehicle particularly an aircraft, comprising at least one which comprises a first fixed part for supporting the seat adjacent a flow of the vehicle; a second movable part comprising a seat pan and a back-rest; guiding means for guiding movement of the second movable part relative to the first fixed part between an upright position and a fully reclined position; and selectively operable driving means for driving progressive movement of the movable part between said positions; wherein said guiding means comprises at least one elongate track provided on said first fixed part, which track is equipped with a rack; and wherein said driving means comprises a pinion that engages said rack and a locking drive unit for driving said pinion.