Seat backrest and seat

Abstract

The invention relates to a seat backrest and a seat. The seat backrest comprises a back supporting piece, a supporting frame used for supporting the back supporting piece, an elastic piece arranged between the side portion of the first back supporting piece and the side portion of the first supporting frame, wherein the elastic piece can be bent and deformed under pressure, and a first supportingbody arranged between the side portion of the first back supporting piece and the side portion of the first supporting frame. The seat comprises a seat part fixedly connected with the lower part arranged at the side part of the first supporting frame and the lower part of the side part of the second supporting frame. Compared with the prior art, the elastic piece is arranged on the upper portion of the backrest, the left side and the right side of the back supporting piece are free of resistance, the deformation freedom degree is high, the longitudinal stability and supporting performance of aspine of a user are enhanced, the supporting frame and the first supporting body can prevent the soft back from excessively deforming and inclining, comfort is good, and safety is good.

Description

technical field [0001] The invention belongs to the technical field of furniture equipment, in particular to a seat back and a seat. Background technique [0002] At present, the flexibility and comfort of the backrest of the seat on the market are poor, and it cannot change accordingly according to the user's sitting posture. As a commonly used product, especially the office chair commonly used by office workers, how to effectively relieve the user's back fatigue and pressure after sitting for a long time, and improve the comfort of the seat back is one of the strong demands for seat product optimization in the current market. The above technologies The problem needs to be solved urgently. [0003] US6709060 discloses a seat back that increases the supportability, stability and comfort of the backrest, which includes a backrest and a support frame arranged on the back side of the backrest, and a plurality of connecting blocks are arranged between the backrest and the suppo...

AI Technical Summary

Problems solved by technology

[0002] At present, the flexibility and comfort of the backrest of the seat on the market are poor, and it cannot change accordingly according to the user's sitting posture. As a commonly used product, especially the office chair commonly used by office workers, how to effectively relieve the user's back fatigue and pressure after sitting for a long time, and improve the comfort of the seat back is one of the strong demands for seat product optimization in the current market. The above technologies problem to be solved

[0003] US6709060 discloses a seat back that increases the supportability, stability and comfort of the backrest, which includes a backrest and a support frame arranged on the back side of the backrest, and a plurality of connecting blocks are arranged between the backrest and the support frame, but multiple The connecting blocks are all rod-shaped, and are respectively distributed on the top, left and right sides of the support frame, forming a point support, and the distance between the support points is relatively scattered, and the support points are far away from the outer edge of the backrest , the support strength is poor, if it is applied to the backrest with large deformation and softness, the deformation space and softness are also small, and the comfort is still poor, which does not meet the requirements of ergonomics. The overall backrest is close to rigidity and does not deform Stress, poor adaptability to people of different body types, in addition to too many spare parts, production and installation are inconvenient, it can be seen that it has a lot of room for improvement

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