First look at the shape of the chair ring.
Whether the upper body shape of the round-backed chair is beautiful or not is almost determined by the shape of the chair ring. A top-class round-backed chair, its armrest is like a bow, which is relaxed and pleasing to the eye. The armrest of the round-backed armchair consists of two taiji lines, with the S at the end slightly thinner and the back slightly thicker. The overall shape and thickness of the handrail make people feel the softness of Tai Chi.
Second, look at the shape of the backboard.
The backrest of the traditional round-backed chair is made into a trapezoid, with a small top and a large bottom. And the size gap between the upper and lower sides of the trapezoid is also very particular. Generally, the gap between the upper and lower sides is between 1.7-2. 1 cm, so that the backrest plate of the round-backed chair will appear small and large, which is relatively stable. The backrest of the round-backed chair is S-shaped curve, and the crutches are also arc-shaped, like a half-chord moon, which is in harmony with the shape of the backrest. The smooth lines extend beyond the chair surface, which increases the width of the chair surface and makes it more comfortable to sit.
Third, look at the shape of the handrail
Goose neck (the tripod under the handrail) is a combination of legs and feet, and some are two pieces of wood. Even if the manufacturer is perpendicular to the seat surface and pursues simplicity and firmness, the cost will increase and the price will be higher; Segmentation work is often made into an ever-changing "S" shape. The shape of the handrail is just like a slap in calligraphy, just right.
Fourth, look at the proportion.
The upper and lower parts of the round-backed armchair should follow a certain proportion. If the upper body is too high, the chair will look top-heavy, if the upper body is too low, it will look dull. If the height of the lower body is wrong and people are uncomfortable to sit on, it is easy to find mistakes. Therefore, craftsmen generally don't get the height of the lower body wrong when making round-backed armchairs, but the size of the upper body is more difficult to handle. Generally speaking, the size of the upper body is determined by the gooseneck, and the gooseneck of the traditional round-backed chair is about 22.5 cm. However, when the height of the seat ring is close to 48 cm and the diameter of the seat ring is close to 6 1 cm, the human body is comfortable. When the inclination angle of the seat ring is about 25 degrees, the comfort of the shoulders, arms and waist of the trial sitter is stronger.
Fifth, look at splicing.
Traditional mahogany furniture adopts tenon-mortise structure, and round-backed chairs are no exception. The chair ring of the round-backed chair is connected by three pins, and the connection technology of the pins on the chair ring is also an important factor to judge the quality of the round-backed chair. There may be a big gap at the tenon joint of the rough round-backed chair, and workers will make up it with sawdust afterwards, but this will leave a clear black line, which is easy to see. The tenon with good workmanship will not have this problem. The shape of the wedge nail in the traditional round-backed armchair splicing should be square, because it can maintain the stability of the connection up, down, left and right. Straight wedge nails are also useful, but the effect is relatively poor.