Office Chair Foot Base

Abstract

An office chair foot base providing to support an office chair has a top end disposed towards the office chair, and a bottom end disposed opposite to the top end towards the ground. The office chair foot base comprises a main boy and a plurality of legs. The main boy includes an interior wall formed circularly and a connecting portion connecting to the interior wall at the bottom end. The plurality of legs formed radially extending opposite to the interior wall to a radial extent. Each of the plurality of legs includes a joining portion formed at the bottom end. The joining portion connects with the connecting portion.

1 . An office chair foot base providing to support an office chair on a ground comprising:
 a top end disposed towards and facing the office chair;   a bottom end disposed opposite to the top end towards and facing the ground;   a main boy including an interior wall formed circularly and a connecting portion connecting to the interior wall at the bottom end; and   a plurality of legs formed radially and extending opposite to the interior wall to a radial extent, with each of the plurality of legs including a joining portion formed at the bottom end, with the joining portion connecting with the connecting portion.   
     
     
         2 . The office chair foot base as claimed in  claim 1 , wherein the main body includes an exterior wall formed circularly and disposed around the interior wall. 
     
     
         3 . The office chair foot base as claimed in  claim 2 , wherein the main body defining a central axis extending through the top end to the bottom end, wherein the office chair foot base subject to a pressure, with pressure pressing on the main body along the central axis, with the interior wall and the exterior wall both deformed towards the central axis at the top end radially, with the interior wall abutting against the office chair support rod. 
     
     
         4 . The office chair foot base as claimed in  claim 2 , wherein the main body and each of the plurality of leg are integrally formed of one-piece plastic to reduce the weight of the office chair foot base and have a connection defined therebetween at the bottom end. 
     
     
         5 . The office chair foot base as claimed in  claim 4 , wherein each of the plurality of legs includes an assembling portion disposed opposite to the joining portion, with each of the plurality of assembling portions to be capable of installing to a roller providing the office chair with the desirable mobility. 
     
     
         6 . The office chair foot base as claimed in  claim 5 , wherein each of the plurality of legs includes two side walls extending along a fictitious extending axis, with each side wall connecting the exterior wall of the main body and the assembling portions at two opposite ends of each side wall. 
     
     
         7 . The office chair foot base as claimed in  claim 6 , wherein each of the plurality of legs has a plurality of ribs formed between an inside surface of the side wall and an inside surface of the other side wall. 
     
     
         8 . The office chair foot base as claimed in  claim 1 , wherein the interior wall includes a hole enclosed thereby, with the hole enabling to be installed to an office chair support rod. 
     
     
         9 . The office chair foot base as claimed in  claim 7 , wherein the main body further includes a gap formed among the interior wall, the exterior wall and the connecting portion, wherein each of the plurality of legs further includes a space formed among the exterior wall of the main body, the joining portion and one of the plurality of ribs disposed opposite to the exterior wall, wherein the gap and the space provide a buffer area for the deformation of the exterior wall and each of the plurality of ribs to avoid the connection to be broken. 
     
     
         10 . The office chair foot base as claimed in  claim 9 , wherein the office chair foot base is capable of installing a cap at the top end, with the gap and the space being not exposed. 
     
     
         11 . The office chair foot base as claimed in  claim 10 , wherein the cap is made in the shape of a disk. 
     
     
         12 . The office chair foot base as claimed in  claim 10 , wherein the cap includes a first installing portion and a second installing portion both formed towards the top end of the office chair foot base, with the first installing portion received in and seals the gap, with the second installing portion received in and seals the space.