SEAT BACK FOR VEHICLES

摘要

A seat back for vehicles including a seat back pad having supporting bodies fixed on a periphery of an opening or a seat frame, or formed integrally with the periphery of the opening by one or multiple-point support, the supporting bodies aligned at predetermined intervals, each arranged in a direction between periphery portions opposite to each other of the opening at a front surface portion formed as a backrest surface for a seated person, the supporting bodies being independent of each other in rod or plate form, each made of a synthetic resin foam having 20 mm or larger in bending deflection amount and 2 to 100 N in load when deflected by 20 mm measured in accordance with a method defined by JIS K7221-2:2006, and having an interspace portion configured such that the supporting bodies are allowed to be deformed by bending in a rear direction.

主权项

1. A seat back for vehicles comprising: a seat back pad,
the seat back pad having a plurality of supporting bodies fixed on a periphery of an opening or a seat frame of the seat back pad by one-point support or multiple-point support, or formed integrally with the periphery of the opening by one-point support or multiple-point support, wherein
the plurality of supporting bodies are aligned at predetermined intervals, and each of the plurality of supporting bodies is arranged in a direction between periphery portions opposite to each other of the periphery of the opening on the seat back pad at a front surface portion thereof formed as a backrest surface for a seated person, and whereinthe plurality of supporting bodies are independent of each other in rod form or in plate form, and each of the plurality of supporting bodies is made of a synthetic resin foam having larger than or equal to 20 mm in bending deflection amount and 2 to 100 N in load when deflected by 20 mm, both of which are measured in accordance with a method defined by JIS K7221-2:2006, and an interspace portion configured such that the plurality of supporting bodies are allowed to be deformed by bending in a rear direction therein.