Novel multifunctional automobile seat headrest wrapped by polyurethane through injection molding

Abstract

The invention relates to a novel multifunctional automobile seat headrest wrapped by polyurethane through injection molding. A headrest body is mainly formed by buckling a front housing and a rear housing. A carrier piece and a sliding piece are arranged in a cavity formed by buckling the front housing and the rear housing. The upper end of a headrest rod is fixedly connected with the carrier piece, the buckled front housing and rear housing are connected with the sliding piece, and the sliding piece slides forwards and backwards in a sliding cavity of the carrier piece through a locking mechanism to drive the headrest to move forwards and backwards. A modified polyurethane layer is injection-molded on the outer side of the headrest body of which the front housing and the rear housing arematched to form a headrest assembly. According to the seat headrest, a secondary injection molding process mode is adopted, and the outer layer of a headrest functional module with a sealing effect iscoated with a modified polyurethane material in a melting mode. The design, production and subsequent assembly processes of foaming products and skin products are directly replaced, so that the development difficulty of the product is greatly reduced, the verification period of the product is shortened, the production process of the product is simplified, and the cost is saved.

Description

technical field [0001] The invention relates to a novel polyurethane injection-molded wrapping multi-functional car seat headrest, which belongs to the field of auto parts. Background technique [0002] At present, the headrest of a car seat is generally composed of a skeleton platform, a motion module, a foam unit, a skin unit and other small systems. Different small system components will be completed in different production workshops, such as component production, product assembly, and testing. Each workshop, each process, and each station will involve corresponding production and testing personnel and related equipment. Several. [0003] At the same time, the more components there are, the longer the cycle of product design, development and verification will be. Also, the more parts there are, the more potential problems there will be when mated together. [0004] Although the traditional PIP headrest technology can improve the degree of mechanization and quality effe...

AI Technical Summary

Problems solved by technology

Moreover, the PIP headrest can only realize the production of simple non-functional headrests, and often cannot realize high-end functions such as the front and rear movement adjustment of the headrest, causing a bottleneck to the overall seat grade

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