A reclining control device for office chairs using gap movement and slow rebound

Abstract

The invention discloses a reclining control device for an office chair which utilizes gap movement and slow rebound. Its structure includes a backrest, an armrest, a lifting column, an adjustment handle, five-star feet, a seat cushion, and an adjustment control system. The backrest is mechanically connected to the seat cushion. It is a movable hinge-shaped structure, and the direction of the backrest and the two sides of the seat cushion are respectively mechanically connected with handrails, and the center position of the bottom of the seat cushion is equipped with a lifting column through an adjustment control system. The triangular structure formed by the rod and the fixed slant rod, the swing rod is pressed back, and the turntable rotates slowly after being pressed by the fixed slant rod, and meshes with the first meshing gear plate and the second meshing gear plate at the same time, and at the same time, each meshing gear plate meshes When the screw rod presses the louver swinging mechanism to the right, the louver swinging mechanism tilts to the right. When the pressure reaches a certain angle, the louver swinging mechanism stops tilting, indicating that the backrest can achieve the maximum reclining angle.

Description

Technical field [0001] The present invention relates to a office chair, especially, is an office chair tilt control device with a slow rebound using a gap. Background technique [0002] The office chair currently use has a function of relying back to the angle adjustment. This function is mainly mainly on the angular adjustment of the ratchet mechanism, the cam mechanism, the reset spring, the lock mechanism, etc., and during the rebound process Most of the elasticity is achieved, but it is easy to rely on the spring of the spring: [0003] The spring is just an accumulator. It has the function of storing energy. When the office chair is behind, the spring is pressed, when the backrest is turned back, the spring is based on the elastic effect, rebounded rapidly, in the strong rebound force Under the action, the backrest quickly pour, it is easy to hit the back of the human body, which causes the phenomenon of back spinal injury after the body, poor practicality. Inventive conten...

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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