This level is similar to what the sofa Huayi space
Sofa is a foreign word, according to the English word "sofa" transliteration. A padded multi seat chair. A spring or thick foam chair, handrails on both sides, is a kind of software furniture.Category 1 (classified by function)Can be divided into functional sofa, fixed back sofa, automatic sofa sofa, pneumatic sofa (manual sofa), electric sofa and TV sofa.
The sofa is a must for many families. The market generally have low back sofa sofa, sofa and high back between the ordinary sofa three. The following three features are introduced for consumers to choose to buy.Low back sofa: a light chair with a rest style. It takes a supporting user support point to the waist (lumbar) the sofa backrest height is low, generally about 370 mm distance of the seat, the backrest angle is small, not only conducive to rest, but also make the whole sofa outside size smaller. The sofa is convenient and light to move, and occupies an area of small size.
Common sofa: it is a kind of commonly used sofa in home. This is the kind of sofa sold on the market. The utility model has two supporting points to support the user's lumbar vertebra and thoracic vertebrae, and can obtain the effect of matching the curved surface with the back of the body. The angle between the back of the sofa and the seat surface is critical, and the angle is too large or too small, which will cause the user's abdominal muscles to be strong and fatigue. Similarly, the sofa seat width should not be too large, usually in accordance with standard requirements within 540 millimeters, so that the user's legs can be adjusted to sit posture, rest more comfortable.
High back sofa and air seat. The utility model is characterized in that the utility model has three supporting points, and the waist, shoulder and back of the head are simultaneously supported on the back of the curved surface. The three supporting points do not form a straight line in space, so the technical requirement of making the sofa is higher, and the selection is difficult when purchasing. Making wooden tall back sofa, must be clear to make three points a turning point on the shelf, otherwise the sofa masked during the process is difficult to ensure the support position, give users a sense of discomfort. Buy high backed sofa should pay attention to form three supporting points on the back is reasonable and appropriate, can be determined through the test base. High back sofa is evolved from the couch. In order to improve the resting performance, the utility model can also be used as a footstool, and the height of the sofa can be the same as that of the front surface of the sofa seat before placing the sofa.
