Horizontal oscillating device providing postural adjustment

Abstract

The present invention relates to a horizontal oscillating device providing postural adjustment, primarily structured so that a bottom portion of a chair is fitted with an oscillating device enabling horizontal oscillation of the chair, and the oscillating device is equipped with a recline actuating device, which can be a telescopic link, to enable changing the angle of elevation of the chair back of the chair. The chair operates on a lever principle through actuation of the recline actuating device, and further enables changing the angle of the chair back to cause the chair back to recline, while at the same time conforming to ergonomics.

1 . A horizontal oscillating device providing postural adjustment, comprising a chair provided with a chair back, a seat portion and a foot pad, and a base used to stabilize the chair, an oscillating device is assembled on the base to enable horizontal oscillation of the chair, wherein:
 the oscillating device is equipped with a recline actuating device that enables angle changing of elevation of the chair back, the recline actuating device is pin connected to the seat portion away from an end of the oscillating device portion, and the chair operates on a lever principle through actuation of the recline actuating device, thereby enabling changing the angle of the chair back using the lever principle, and achieves functionality that affords ergonomic comfortability.   
     
     
         2 . The horizontal oscillating device providing postural adjustment according to  claim 1 , wherein a bottom portion of the chair back is pivotally fitted with a seat portion actuating device pin connected to the seat portion, and the seat portion actuating device is used to change the angle of the seat portion. 
     
     
         3 . The horizontal oscillating device providing postural adjustment according to  claim 1 , wherein the seat portion is pivotally fitted with a foot pad actuating device pin connected to the foot pad, the foot pad actuating device is used to change the angle of the foot pad, and the seat portion is pin connected to the chair back away from one side of the foot pad, and adjoins the bottom portion of the chair back. 
     
     
         4 . The horizontal oscillating device providing postural adjustment according to  claim 1 , wherein the seat portion is equipped with a pair of supports used to support the seat portion. 
     
     
         5 . The horizontal oscillating device providing postural adjustment according to  claim 1 , wherein the recline actuating device is a telescopic link. 
     
     
         6 . The horizontal oscillating device providing postural adjustment according to  claim 2 , wherein the seat portion actuating device is a telescopic link. 
     
     
         7 . The horizontal oscillating device providing postural adjustment according to  claim 3 , wherein the foot pad actuating device is a telescopic link. 
     
     
         8 . The horizontal oscillating device providing postural adjustment according to  claim 1 , wherein bottom portions of the two sides of the chair back are respectively further pivotally fitted with sliding bases, and the sliding bases are slidably disposed on the oscillating device. 
     
     
         9 . The horizontal oscillating device providing postural adjustment according to  claim 8 , wherein side portions of the chair back are respectively further equipped with guide rails, and rollers are insertedly disposed in the guide rails.