Office chair tilting control apparatus capable of slowly rebounding by using gap movement

Abstract

The invention discloses an office chair tilting control apparatus capable of slowly rebounding by using gap movement. The structure of the office chair tilting control apparatus comprises a backrest,armrests, a lifting column, an adjusting handle, a star-shaped foot, a seat cushion and an adjustment control system, wherein the backrest and the seat cushion are mechanically connected to form a movable hinge structure, both sides, facing the seat cushion, of the backrest are respectively and mechanically connected to the armrest, the center position of the bottom portion of the seat cushion ismovably matched with the lifting column through the arranged adjustment control system. According to the present invention, by using the triangle structure formed by the rotating disc, the swinging rod and the fixing inclination rod, the swinging rod backward presses, the rotating disc slowly rotates under the pressure of the fixing inclination rod, and is simultaneously engaged with the first engaging gear disc and the second engaging gear disc while various engaging gear discs are engaged with the screw rod to rightward press the louver swinging mechanism, the louver swinging mechanism tiltsrightward, and the louver swinging mechanism stops the tilting after the pressing is performed a certain angle, such that the backrest achieves the maximum tilting angle.

Description

technical field [0001] The invention relates to an office chair, in particular to an office chair reclining control device which utilizes gap movement and slow rebound. Background technique [0002] The currently used office chairs all have the function of adjusting the reclining angle of the backrest. This function mainly relies on the cooperation of the ratchet mechanism, the cam mechanism, the return spring, the locking mechanism, etc. to adjust the reclining angle. Most of them rely on the elastic force of the spring to achieve, but relying on the elastic force of the spring is easy to cause: [0003] The spring is just an accumulator, which has the function of storing energy. When the backrest of the office chair is reclined, the spring is pressed. When the backrest needs to be retracted, the spring rebounds quickly based on the elastic effect. Under the action, the backrest leans forward rapidly, which easily bumps into the human body's back, causing the phenomenon of...

AI Technical Summary

Problems solved by technology

[0002] The currently used office chairs all have the function of adjusting the tilting angle of the backrest. This function mainly relies on the cooperation of the ratchet mechanism, the cam mechanism, the return spring, the locking mechanism, etc. to achieve the adjustment of the tilting angle. Most of them rely on the elastic force of the spring to achieve, but relying on the elastic force of the spring is easy to cause:

[0003] The spring is just an accumulator, which has the function of storing energy. When the backrest of the office chair is reclined, the spring is pressed. When the backrest needs to be retracted, the spring rebounds quickly based on the elastic effect. Under the action, the backrest leans forward quickly, and it is easy to hit the back of the human body, causing the phenomenon of spinal injury on the back of the human body, and the practicability is poor.

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