Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
196 words
A reclinable vehicle seat comprising a bottom part (1) and a back support part (2), connected together for rotation together about a single axis (3) transverse to the seat and adjacent to the bottom part (1) between a normal substantially upright position and rearwardly inclined reclining positions, the connection (13) between the parts (1, 2) enabling the back support part (2) to be tilted rearwardly through a permitted angle from its normal position relative to the bottom part, first control means (6) for locating the bottom part releasably in the normal substantially upright position or in reclining positions spaced about the axis (3) and second control means (14) for locating the back support part (2) releasably in its normal position in relation to the bottom part or in rearward tilted positions within the permitted angle, characterised in that limiting means (23, 24) are provided for limiting the rearward tilting of the back support part (2) when the bottom part (1) is in a reclining position, the limiting means (23, 24) being influenced by the positioning of the bottom part (1) so as to reduce the permitted angle progressively with increasing recline of the bottom part (1).
Claim 2
Dependent Claim
196 words
A reclinable vehicle seat comprising a bottom part (1) and a back support part (2), connected together for rotation together about a single axis (3) transverse to the seat and adjacent to the bottom part (1) between a normal substantially upright position and rearwardly inclined reclining positions, the connection (13) between the parts (1, 2) enabling the back support part (2) to be tilted rearwardly through a permitted angle from its normal position relative to the bottom part, first control means (6) for locating the bottom part releasably in the normal substantially upright position or in reclining positions spaced about the axis (3) and second control means (14) for locating the back support part (2) releasably in its normal position in relation to the bottom part or in rearward tilted positions within the permitted angle, characterised in that limiting means (23, 24) are provided for limiting the rearward tilting of the back support part (2) when the bottom part (1) is in a reclining position, the limiting means (23, 24) being influenced by the positioning of the bottom part (1) so as to reduce the permitted angle progressively with increasing recline of the bottom part (1).
Claim 3
Dependent Claim
58 words
A reclinable vehicle seat as claimed in Claim 1 which is mounted on a support frame to be secured in a vehicle, the support frame including a first member (3) defining the transverse axis and a second member (4) to engage the bottom part (1) so as to locate and support it in its normal substantially upright position.
Claim 4
Dependent Claim
60 words
A reclinable vehicle seat as claimed in Claim 1 or Claim 2 characterised in that the first and second control means (6, 14) each comprises a fluid-controlled piston and double-ended cylinder with a fluid passage (10) between its ends, a valve (11, 17) in each passage (10) and first and second operating elements (12, 18) for opening the respective valves.
Claim 5
Dependent Claim
44 words
A reclinable vehicle seat as claimed in Claim 3 including an interlink (25) between the first and second operating elements (12, 18) whereby the second operating element (18) will open the valves (11, 17) of both the first and second control means (6, 14).
Claim 6
Dependent Claim
146 words
A reclinable vehicle seat as claimed in any preceding claim, characterised in that the limiting means comprises a stop member (23) connected to the bottom part (1) by link means (l g , 20, 21, 22) and a complementary part (24) rigidly connected to the back support part (2), the link means being arranged so that the stop member (23) clears the complementary part (24) when the bottom part (1) is in its normal substantially upright position but so that rearward rotation of the bottom part (1) from its normal position moves the stop member (23) to positions in which it will be engaged by the complementary part (24) when the back support part (2) is tilted rearwardly relative to the bottom part (1) and will thereby limit the angle of such tilting, the limitation being progressively increased with increasing rearward rotation of the bottom part.
Claim 7
Dependent Claim
25 words
A reclinable vehicle seat as claimed in Claim 5 wherein the stop member is a roller (23) and the complementary part is a cam (24).
Claim 8
Dependent Claim
30 words
A reclinable vehicle seat as claimed in any preceding claim in which the connection between the back support part (2) and the bottom part (1) coincides with the transverse axis.
Claim 9
Dependent Claim
27 words
A reclinable vehicle seat as claimed in any preceding claim characterised by a leg support part extending downwardly adjacent to the front edge of the bottom part.