Seat cushion structure and manufacturing method thereof

Abstract

The invention discloses a seat cushion structure and a manufacturing method thereof, belongs to an internal structure of an automobile, and particularly relates to a seat cushion structure. The structure comprises a framework, an outer contour framework, an internal framework, a reinforcing rib I, a reinforcing rib II, a reinforcing area, a connecting framework, a foam layer, a PUR foam layer and a decorative fabric layer. The embedded framework is integrally foamed and formed, so that the foam and the framework preferentially form a whole, the foam is made of EPP and can replace part of soft materials such as polyurethane foam, and the content of volatile organic compounds (VOC) of the product is reduced; the selected foam is good in rigidity, the preferable material is polypropylene (EPP), part of metal can be replaced, the polypropylene EPP has the buffering characteristic, part of foam can be replaced, and the product weight is reduced; the foam can form patterns in the forming process, when the decorative fabric partially wraps the seat, the foam can replace part of the decorative fabric, the usage amount of the fabric is reduced, and the sewing time of the fabric is shortened.

Description

technical field [0001] The invention belongs to an automobile internal structure, in particular to a seat cushion structure. Background technique [0002] A seat refers to a tool for passengers to rest, which is essentially a rest tool placed in a long-distance vehicle. Seats are installed in cars, trains, cruise ships and airplanes, so there are high requirements for the environmental protection and safety of seats. [0003] The main material of the existing seat cushion is polyurethane (PUR) foam, but because this material generally has environmental protection and health problems such as strong odor and large VOC emission, it cannot meet the requirements of increasing air quality in the car; Most of the seats use metal skeletons, and the structure of welded beams or steel mesh is used for load-bearing requirements between the skeletons. This kind of production process is complicated, and the weight of the produced seat skeleton is heavy and uses more metal, which is beco...

AI Technical Summary

Problems solved by technology

[0003] The main material of the existing seat cushion is polyurethane (PUR) foam, but because this material generally has environmental protection and health problems such as strong odor and large VOC emission, it cannot meet the requirements of increasing air quality in the car; Most of the seats use metal skeletons, and the structure of welded beams or steel mesh is used for load-bearing requirements between the skeletons. This kind of production process is complicated, and the weight of the produced seat skeleton is heavy and uses more metal, which is becoming less and less suitable for seating. The direction of chair development

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