Plastic backrest chair

Abstract

The invention relates to a plastic backrest chair which comprises a chair seat, chair legs and a backrest, wherein the chair seat comprises a frame and a seat plate; cross beams which extend outwards are arranged on the frame; the chair legs are connected by the cross beams; the four chair legs are available; the two rear chair legs extend upward to be taken as main rods of the backrest; an upper arc-shaped arch strip and a lower arc-shaped arch strip which are integrated into a whole are arranged between the two main rods; a backrest plate is arranged in the upper arch strip, the lower arch strip and the two main rods; rattan-imitated convex ribs and grooves are respectively arranged on the backrest plate and the seat plate; and the chair legs, the cross beams, the frame, the main rods, the upper arch strip and the lower arch strip are respectively formed by an outer layer and a core layer arranged in the outer layer. The chair seat, the chair legs and the backrest are clearly distinguished in the aspect of product design, and are connected into a whole by the cross beams, so that the structure is very ingenious; the chair legs, the cross beams, the frame, the main rods, the upper arch strip and the lower arch strip are respectively formed the outer layer and the core layer, thus being thick in structures, and enabling the product to be good in strength, elegant and attractive; and the rattan-imitated convex ribs and grooves are respectively arranged on the backrest plate and the seat plate, so that a person can breathe freely when sitting on the chair.

Description

technical field [0001] The invention relates to a chair, in particular to a plastic chair with a backrest, which belongs to the field of furniture. Background technique [0002] Chair is a kind of commonly used furniture, and there are many types. Traditional chairs include wooden chairs, bamboo chairs, rattan chairs, and steel-wood hybrid chairs. Most of the existing plastic chairs are formed by one-time integral injection molding (or blow molding), which has the characteristics of labor-saving processing, many styles, no fear of rain, and recyclable. However, the existing plastic chairs have the following disadvantages: First, the strength is poor. Due to the one-time injection molding, the chair legs, chair back and other parts should not be too thick. The second is that the style is dull, not smart, and not beautiful; the third is that the color is monotonous, usually monochrome; the fourth is that the air permeability is poor; the fifth is that it is uncomfortable ...

AI Technical Summary

Problems solved by technology

However, the existing plastic chairs have the following disadvantages: First, the strength is poor. Due to the one-time injection molding, the chair legs, chair back and other parts should not be too thick. Low; second, the style is dull, not smart, and not beautiful; third, the color is monotonous, usually monochrome; fourth, the air permeability is poor; fifth, it is uncomfortable to sit

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