Inclinable backrest pivot rod and an inclination adjusting system comprising such a rod

摘要: An adjusting system comprising two pivot device 6 and 7 which are symmetrical have extending therethrough means defining a stepped central aperture whose dimension increases from the interior of seat structure to exterior latter. A rod 10 is extended at each end by square-sectioned bar 23 slidably mounted in apertures devices fitted one sleeve rigid with control element 30. locking hairpin locks member but may be withdrawn any time so as permit reversing direction positioned.