Slide structure of chair back adjusting device

Abstract

A slide structure of a chair back adjusting device is disclosed. The chair back adjusting device includes a support plate, an adjustor assembly arranged on the support plate, and a slide slidably sleeved on the support plate. The slide includes a through opening. A slide resisting rib is arranged, in a manner of being integrally formed therewith, at one side of interior of the through opening. The slide resisting rib is in point contact engagement with an edge of the support plate. The slide resisting rib is arranged by being integrally formed with a sidewall of the slide. The slide resisting rib includes a base portion connected to the sidewall of the slide and an elastic portion extending from the base portion. The elastic portion has an end that is away from the base portion and is formed with a terminal portion.

I claim: 
     
         1 . A slide structure of a chair back adjusting device, the chair back adjusting device comprising a support plate, an adjustor assembly arranged on the support plate, and a slide slidably sleeved on the support plate, wherein the slide comprises a through opening, and at least one slide resisting rib arranged, in a manner of being integrally formed therewith, at one side of interior of the through opening, wherein the at least one slide resisting rib is in point contact engagement with an edge of the support plate; the at least one slide resisting rib is integrally formed with a sidewall of the slide; the at least one slide resisting rib comprises a base portion connected to the sidewall of the slide and an elastic portion extending from the base portion; and the elastic portion has an end that is away from the base portion and is formed with a terminal portion having an apex that forms the point contact engagement with the edge of the support plate. 
     
     
         2 . The slide structure of the chair back adjusting device according to  claim 1 , wherein the at least one slide resisting rib comprises a plurality of slide resisting ribs arranged in a manner of being spaced from each other in an upward-downward direction. 
     
     
         3 . The slide structure of the chair back adjusting device according to  claim 1 , wherein the slide is made of a plastic material. 
     
     
         4 . The slide structure of the chair back adjusting device according to  claim 1 , wherein a width of the terminal portion is greater than a width of the base portion. 
     
     
         5 . The slide structure of the chair back adjusting device according to  claim 4 , wherein the width of the terminal portion is 1.2-1.5 times of the width of the base portion. 
     
     
         6 . The slide structure of the chair back adjusting device according to  claim 1 , wherein an elastic moving space is formed between the elastic portion of the at least one slide resisting rib and the sidewall of the slide. 
     
     
         7 . The slide structure of the chair back adjusting device according to  claim 6 , wherein the elastic moving space is in the form of an elongated diverging slot having one closed end and one open end. 
     
     
         8 . The slide structure of the chair back adjusting device according to  claim 6 , wherein the elastic moving space has one closed end and one open end, and a width of the elastic moving space adjacent to the open end is greater than a width of the elastic moving space adjacent to the closed end.