【物品用途】;本創作之用途係提供作為人能舒適坐入的可調整高度及相關座椅構件的座椅整體形態設計。;【設計說明】;本創作係關於一種座椅，是包含一預設高度的椅腳、一組設在椅腳中間氣壓棒上端的承座部、一組設在承座部靠後一側的椅背、各別組設在承座部左右側的扶手所構成；其中，該可活動位移的椅腳中間氣壓棒一端組設的承座部是作橫向的寬幅矩形部件並在中間段落略弧凹壯態〔如俯視圖及前視圖〕，及在承座部兩旁組設的扶手是以略微前傾的扶手支持部一端結合以後寬及前稍窄的適切厚度流線形態抵靠部〔如左、右側視圖及仰視圖〕，另在承座部的後側方位是組設以由側端視之如"ㄑ"形的椅背，並在椅背的後側周邊結合一呈"上T下△"形的輔助桿段〔如後視圖〕，而該椅背的層面是作數多道呈間距"A"狀排列的透氣槽孔〔如立體圖及前視圖〕，並使椅背的中間段落為呈略弧凹形態，以利人背部的舒適躺靠；藉此，使該整體座椅在外觀形態是呈現一平穩、舒適的視覺設計。[Purpose of the article]; The purpose of this creation is to provide an overall design of a seat with adjustable height and related seat components for people to sit comfortably. ; [Design description]; This creation is about a kind of chair, which includes a chair leg with a preset height, a seat part arranged at the upper end of the middle air pressure rod of the chair leg, a chair back arranged at the rear side of the seat part, and armrests respectively arranged on the left and right sides of the seat part; wherein, the seat part arranged at one end of the middle air pressure rod of the movable chair leg is a horizontal wide rectangular part with a slightly concave shape in the middle section (as shown in the top view and the front view), and the armrests arranged on both sides of the seat part are a slightly forward-leaning armrest support part, which is wide at the back and slightly narrow at the front. The backrest is a streamlined support portion with a cut thickness (as shown in the left and right side views and the top view), and a chair back is arranged at the rear side of the seat portion so as to be shaped like a "ㄑ" when viewed from the side, and an auxiliary rod section in the shape of "upper T and lower △" is combined at the rear periphery of the chair back (as shown in the rear view), and the layer of the chair back is made of a plurality of ventilation slots arranged in an "A" shape at intervals (as shown in the three-dimensional view and the front view), and the middle section of the chair back is slightly concave in shape to facilitate the comfortable reclining of the back of the person; thereby, the overall appearance of the chair presents a stable and comfortable visual design.