Continuous Arc Chair

A chair built around one continuous arc. The back and both armrests are a single bent component, supported by curved brackets that resolve into a scroll-shaped end — a modern reading of the traditional Chinese round-back chair.

整张椅子围绕一根连续弧线展开：靠背与两侧扶手由同一根弯曲构件完成，由弯曲支撑件承接，末端收为如意云头造型——对新中式圈椅的一次现代解读。

The material supplied for this project is the structural set: three exploded assembly views and two dimensioned drawings. This case study therefore documents the structure and the drawing work rather than a concept narrative.

本项目现有资料为结构部分：三张三维拆件图与两张工程标注图纸。因此本案例记录的是结构与图纸工作，而不是概念叙事。

ASSEMBLY LOGIC

The exploded views separate the chair into four levels: the continuous arc with its two side brackets, the upholstered back panel, the seat frame, and the layered tubular base.

拆件图把椅子分解为四个层级：带两侧支撑件的连续弧形构件、软包背板、座面框架，以及层叠管状底座。

Every curved component was resolved with radius callouts so the parts could be bent and welded from tube stock. The drawing set records the arc radii, the bracket scroll radii and the back panel proportions.

所有弯曲构件都给出了半径标注，以便按管材弯制与焊接。图纸记录了弧面半径、支撑件云头半径与背板比例关系。

BACK ARC

R49.83 — 靠背主弧半径

ARC HEIGHT

17.48 — 弧形构件高度标注

ARC WIDTH

21.21 — 弧形构件宽度标注

SIDE BRACKET

R25.58 / R6.40 — 侧支撑弯曲半径

SCROLL END

R1.17 / R1.24 / R3.88 — 云头端部半径

BACK PANEL

4.93 × 16.41 — 软包背板比例标注

TUBE WALL

0.45 / 0.75 — 管材壁厚标注

OBSERVED IN THE DRAWING SET

• 01连续弧构件：靠背与扶手一体弯制，两侧下端插入支撑件
• 02软包背板：矩形软包嵌入弧内，正面有云纹徽记
• 03云头支撑：曲线由多段半径过渡收尾，形成如意云头造型
• 04层叠框架底座：横向管材逐层内收，形成下重上轻的稳定感