(not shown in FIG. 1) are formed in the middle portions of the front and rear surfaces of the pillar 1. The hook holes 1c are provided for the brackets for supporting shelf plates, desk top plates or the like to be detachably hooked therein, and are exposed in a joint 3d formed ...
In this chair, the dimensions of the legs 11b and the opening 33 are determined so that when the above-mentioned legs 11b are relatively rotated, with the corner 33d at the end of one longitudinal side of the opening 33 in the outer shell 33 being positioned near the center of the bas...