Long-stroke waist supporting mechanism and seat

Abstract

The invention discloses a long-stroke waist supporting mechanism and a seat. The long-stroke waist supporting mechanism comprises a back supporting part, a back support and a supporting adjusting mechanism. The back supporting part is arranged on the front side of the back support, the upper portion of the back supporting part is connected to the upper end of the back support, the lower end of theback supporting part opens and closes relative to the back support, and the supporting adjusting mechanism is arranged between the back supporting part and the back support and supports the back supporting part to stay at the corresponding position. The seat comprises a seat body and the long-stroke waist supporting mechanism, has the functions of back chasing and waist jacking, and is better incomfort; compared with the prior art, the waist support has a longer waist support stroke, so that the lower end of the back support part can be attached to the waist and back parts at more positions,the comfort is improved, and waist diseases are relieved; a plurality of parts are combined, so that the cost is low, the modularization degree is high, the application range is wide, the assembly issimple and quick, and the production efficiency is improved; when the lower end of the back supporting part moves forwards, the included angle between the whole supporting adjusting assembly and thehorizontal plane becomes small.

Description

technical field [0001] The invention relates to the field of office furniture, in particular to a long-stroke lumbar support mechanism and a seat. Background technique [0002] With the rapid development of science and technology and the continuous increase of social pressure, health has become an important topic that the society pays more and more attention to. Although technology has liberated physical labor, it makes people fall into the mental work of sitting at a desk for a long time, which directly leads to the continuous increase of the number of sedentary groups in my country. People who are sedentary will constantly adjust the position of their buttocks to ensure a comfortable sitting. , and when the user works, most of the time is to sit on the front two-thirds position of the seat cushion, and at this moment the backrest cannot support the user's waist and back. Then more and more people have various waist diseases that do not match their age caused by sedentary b...

AI Technical Summary

Problems solved by technology

In this invention, the upper half of the back frame rotates forward, extruding the entire elastic frame to make it support the lower back forward, thereby adjusting the support for the waist but the stroke is shorter; and when adjusting the seat depth, it is necessary to overcome the elastic force of the elastic frame and keep it at The adjusted position locks the upper and lower brackets on the back, which is cumbersome to operate and difficult to lock to a comfortable position for the user

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