We sit on the dining chair and eat with our family every day, but we seldom think about why the stool is comfortable to sit on. Of course, all the design dimensions of furniture exist for a reason. The reporter visited most furniture stores in this city. After measurement, most dining chairs are about 40 cm high.
White-collar workers have been working for a long time with backache. When they get home, they have a comfortable environment, eat at the table, or lie on the sofa and watch TV. Every moment of our home life is closely related to furniture. Why is the stool higher than the sofa? Why are the widths of sofas different? Every piece of furniture has its own size. These dimensions are not created out of thin air, but designers give furniture a "number" when making them. These are all in line with the laws of human movement and engineering, just for comfort.
The existence of any objective thing has its rationality. For us living in the world, we are used to most existing things. We sit on the dining chair and eat with our family every day, but we seldom think about why the stool is comfortable to sit on.
According to the height of human ischial tubercle, 390mm to 420mm is the best.
Miss Su, a brand designer, told the reporter that the height of the seat is measured and designed with the sitting position (ischial tubercle) as the reference point, and the height is often set between 390 mm and 420 mm. If it is lower than 380mm, people's knees will arch, feel uncomfortable and stand up. When the height is 500mm longer than the length of human lower limbs, the body pressure is dispersed to the thighs, so that the inner thighs are compressed and the calves are swollen. Miss Su also told reporters that the width, depth, inclination and radian of the seat back have fully considered the size of the human body and the activities of various parts. In the depth design of cabinet furniture, the height of desk and leg space, the elastic design of mattress, etc. , are based on human physiological needs.
According to relevant data, the inclination and curve of the armchair in Ming Dynasty were designed according to human characteristics. As we all know, the side of the human spine is "S" shaped in the natural state. According to this feature, craftsmen in the Ming Dynasty made the backrest into an "S" curve suitable for the spine. According to the necessary inclination of human body at rest, the inclination angle of backrest is close to 100 degrees. As a result of this treatment, when people sit in a chair, there is a large contact surface between the back of the chair and the muscles are fully rested, thus creating a sense of comfort, and it is not easy to feel tired when sitting for a long time.
A sofa with an oblique angle of 52 degrees will be more casual and comfortable.
In the West Home Store, the original Danish brand is famous for its design, and its home consultant Huang Qiang told reporters that the sitting depth of fabric sofa is determined according to the average length of human thighs. "People's thighs are about 445 mm on average, and the seat depth of ordinary fabric sofas should be about 450 to 520 mm; At the scene, Huang Qiang introduced that the sofa with a depth of 500 mm is suitable for living room or public places, and the sofa with a depth of about 500 mm is basically a leisure sofa, which is suitable for family use and feels comfortable and relaxed when sitting. "If the depth of the fabric sofa seat is too large, exceeding the average degree of the human thigh bone, people sitting on it, the waist still can't touch the backrest, which is easy to make people feel tired. If it is too shallow, it will increase the pressure on the buttocks. "
In the field of leisure sofa design, the most commendable is the 52-degree oblique angle design of leisure sofa. "The so-called 52-degree oblique angle means that the back support frame of the sofa forms a 52-degree golden angle with the ground." The reporter's experience found that people naturally "concave" when trying to sit on the designed sofa, with their thighs close to the sofa surface and their backs obedient to the sofa back, which is simple and comfortable. "With this design, the designer produced more than 100 models during the experimental period, and the sofa market was very good until the right angle was found." Huang Qiang said. (Source: Sichuan Online-Huaxi Dushi Bao)