In essence, the sofa is actually a kind of chair, or it can be said that the sofa is a backrest sofa with spring or thick foam. Structurally speaking, a complete backrest sofa chair is mainly composed of three parts: the armrest, the seat cushion and the sofa back. Therefore, pay attention to these three parts when purchasing, how should the backrest sofa chair be selected through these three parts? ? The following small series will come to introduce you.
What kind of backrest sofa is the most comfortable
In everyone's impression, the comfortable backrest sofa has a large backrest, and the soft cushion can be used to wrap people up, plus the chaise longue, so that you can lie down, it is much more comfortable than sitting. Is the sofa really comfortable ? After investigation, it is theoretically and practically that such a sofa is not comfortable to sit on, because the large backrest will keep your head and neck in a straight line, and it will not last long. The muscles of the muscles start to get sour, and the long-term head hurts, so this harem-style luxury style sofa is not the most comfortable. Then everyone may ask, what kind of sofa is the most comfortable ?
  In fact, the sofa that is comfortable to sit on should have a cushion with the right hardness, a suitable armrest and a sofa back, and of course, a chaise longue. Sometimes it is tired, you can lie on the beautiful rest for a while, even if the sofa is like this. It is not easy to feel tired when sitting for a long time, and it is not bad in comfort. Therefore, such a sofa is the most comfortable backrest sofa.
How high is the living room backrest sofa chair
Generally speaking, the height of the sofa seat should be equal to the height of the person's calf plus the heel of the shoe or the height of the shoe heel. The sofa will not feel tired and sit comfortably, and the height is about 35. Between 42 cm. If the seat cushion is too high, the person will sit on the ground and will not be able to stand on the ground. The weight of the human body will be pressed against the leg, which may easily lead to leg numbness or soreness.
The height of the backrest of the sofa is generally between the shoulder and the ear of the adult. According to the height of the Chinese people, if the height is calculated from the ground, the height of the backrest of the sofa is about 68 to 72 cm. It is understood that some people now like to use the high sofa back, but this is not too scientific. The shoulder of the person rests on the backrest. There is a certain distance between the waist, the back and the back of the sofa. It takes a long time to sit. It has a backache and a backache, and it is prone to fatigue.
Regarding the height of the sofa backrest, scientific research shows that the backrest sofa has obvious superiority. The most comfortable sofa is the person who sits up and leans back naturally. The back, head and shoulders of the person should be almost all with the sofa back. Contact, the larger the contact area, the stronger the comfort of the body and the more natural sitting posture. Usually the angle between the seat cushion and the sofa back is not perpendicular to 90 degrees, but between 100 and 108 degrees.
What is the standard height of the backrest sofa backrest?
1. From the standard scale of the sofa back, according to the height, the sofa back can be divided into three types: high, medium and low:
2. High support for the waist, back and head and neck. The height of the sofa backrest is generally: 490mm-550mm
3. The middle backrest provides support for the waist and back, and the height is not higher than the cervical vertebrae point to ensure that the head can be flexibly rotated ; the height of the sofa backrest is generally 400mm-450mm .
4. The low back provides lumbar support, and the height is not higher than the lower corner of the shoulder scapula to ensure that the upper limbs can move flexibly. The height of the sofa backrest is generally 310mm-350mm .
5. In addition, the heights of the center points of the three support areas of the waist, back, neck and head of the backrest are respectively about 150mm-180mm , 380mm-420mm , 450mm-480mm .
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