Foldable chair with armrests

Abstract

A foldable chair includes first and second legs which are pivotally mounted to each other at intermediate portions thereof so as to be turned between an unfolded position, where upper and lower end portions of the first and second legs are remote from each other, and a folded position, where the upper and lower end portions are closer to each other. Each armrest includes a front end pivoted on the upper end portion of the first leg, a rear end, and a keyway between the front and rear ends such that a key, which is secured on the upper end portion of the second leg, is inserted into and is movable along the keyway between the unfolded and folded positions.

I claim:  
     
         1 . A foldable chair comprising: 
 a first leg including a first lower end portion adapted to be supported on a ground surface, a first upper end portion extending upwardly and forwardly from said first lower end portion, and a first intermediate portion between said first lower and upper end portions;    a second leg including a second lower end portion adapted to be supported on the ground surface, a second upper end portion extending upwardly and rearwardly from said second lower end portion and terminating at a top end edge, and a second intermediate portion between said second lower and upper end portions and connected pivotally to said first intermediate portion about a first pivot axis, said second upper end portion having right and left lateral side ends which are disposed respectively between said top end edge and the first pivot axis, and which are opposite to each other in a transverse direction parallel to the first pivot axis;    right and left armrests, each including a front end which is mounted pivotally on said first upper end portion about a second pivot axis in the transverse direction, a rear end which extends rearwardly from said front end towards a respective one of said right and left lateral side ends, and a keyway which is formed between said front and rear ends, which extends along a length of a respective one of said right and left armrests, and which has front and rear limits respectively proximate to said front and rear ends; and    right and left keys, each including a proximate end which is mounted securely on a respective one of said right and left lateral side ends, and a distal end which extends outwardly from said proximate end and which is inserted into and is movable along said keyway between an unfolded position, where said distal end engages said rear limit, and where said first upper and lower end portions are respectively remote from said second upper and lower end portions, and a folded position, where said distal end engages said front limit, and where said first upper and lower end portions are respectively closer to said second upper and lower end portions.    
     
     
         2 . The foldable chair of  claim 1 , wherein said keyway is an elongated slot extending through the respective one of said right and left armrests in the transverse direction, each of said right and left keys being a sliding member slidably movable in said elongated slot between the unfolded and folded positions.  
     
     
         3 . The foldable chair of  claim 2 , wherein each of said right and left armrests includes a mounting portion formed with said elongated slot, and an armrest portion having an engaging wall surface which is mounted securely on said mounting portion, and a resting wall surface opposite to said engaging wall surface and distal to said mounting portion.  
     
     
         4 . The foldable chair of  claim 3 , further comprising right and left retaining sleeves, each sleeved on said sliding member and having two ends which abut respectively against one of said right and left lateral side ends and said mounting portion of a respective one of said right and left armrests in the transverse direction so as to keep the respective one of said right and left lateral side ends distant from said mounting portion of the respective one of said right and left armrests.  
     
     
         5 . The foldable chair of  claim 3 , wherein said armrest portion of each of said right and left armrests further has two holding members disposed on and extending downwardly from said engaging wall surface at two opposite sides of said mounting portion in the transverse direction, whereby a fabric cover is adapted to be wrapped around said armrest portion and to be fastened to said holding members.