Chair/couch conversion fitting

摘要

When the seat converts into a couch etc. the carriage (2) and its seat group is pulled out from its initial setting by means of a pivotal linkage made up of a pivotal strut (10) fitted both sides of the mainframe (1) in the front lower part of the side-plate. The strut is in turn pivotally joined to the carriage via a lever (9). The strut is also pivotally joined to a swivel lever (4) hinged to the linkage rod (3) as locked onto the carriage. The swivel lever (4) is extended beyond its fixed pivot joint to the carriage-fitted rod (3) to give a pivot joint at the free lever (4) end as connection to the coupling rod (8) hinged to the support swivel lever (5) serving the chair/couch fitment. A pivot joint at the free end of the extended support lever (5) forms a securement for the coupling rod.