Adjusting control mechanism for seat tray

Abstract

The invention discloses an adjusting control mechanism for a seat tray. The adjusting control mechanism comprises a fixed disc, a movable disc and a torsional spring, wherein the fixed disc is used for mounting a telescopic piece; the movable disc is rotationally connected to the fixed disc; the torsional spring is used for driving the movable disc to rotate to enable an angle between the fixed disc and the movable disc to restore to an initial angle; locking holes are formed in side walls of the movable disc; a plurality of locking holes are formed along a rotating track of the movable disc;a locking piece is connected onto the fixed disc in a sliding manner along an axial direction of the locking holes; a guide rail used for limiting a sliding direction of the locking piece is arrangedon the fixed disc; the guide rail and the fixed disc are fixed along an axial direction of the guide rail; and a driving mechanism used for driving the locking piece to deviate from or be inserted into the locking holes is arranged at one outward end of the locking piece. A seat using the seat tray has an adjustable seatback tilting angle, so that the seat can provide appropriate backrest supporting force for people of various bodily forms, and the using comfort level is improved.

Description

technical field [0001] The invention relates to office chair accessories, in particular to an adjustment control mechanism for a seat tray. Background technique [0002] At present, the working hours of office workers are generally more than eight hours, and about 60% of office workers spend their time on chairs every day. Due to sedentary, unhealthy seats and incorrect sitting postures, 75% of office Seat users suffer from cervical spondylosis, lumbar disc herniation, scoliosis, chest and back pain and other diseases to varying degrees. [0003] With the advancement of science and technology and the improvement of people's living standards, healthy life has gradually become the focus of people's attention. Healthy office chairs that conform to ergonomics can effectively reduce the probability of suffering from the above diseases, so healthy and comfortable office chairs are particularly important for office workers. important. [0004] Although the traditional office chai...

AI Technical Summary

Problems solved by technology

[0004] Although the traditional office chair chassis on the market can realize the reclining function of the backrest, it does not take into account that users of different sizes have different requirements for the support force of the backrest. If a constant support force is used, the smaller body may Users feel that the support force of the backrest is too large and cannot be leaned on, while users with larger body size feel that the support force of the backrest is too small and the support force is not enough

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