| 摘要 |
A set of different backrests of motor vehicle rear seats is manufactured with standardized features; each backrest has a structure supporting a padding and defined by a plate and a frame, fixed onto a front surface of the plate; the frame is defined by a tube extending along a ring-shaped path and has an upper horizontal crossbar, a lower horizontal crossbar and two uprights arranged at the sides; the shape and external dimensions of the cross-section of the tube are the same for different backrests; the shape and external dimensions of at least one of the two uprights are the same for the different backrests; the different frames have the same height distance between the upper horizontal crossbar and the lower horizontal crossbar; possible differences in height between the different backrests are due to different heights of the padding above the upper horizontal crossbar and/or below the lower horizontal crossbar.
|
