Sofas can be divided into functional sofas, fixed-back sofas, stepless automatic control sofas, pneumatic sofas (ie: manual sofas), electric sofas and sofas with TVs according to their functions.
Classified by function
Sofas can be divided into functional sofas, fixed-back sofas, stepless automatic control sofas, pneumatic sofas (ie: manual sofas), electric sofas and sofas with TVs according to their functions. Sofas are already necessary furniture for many families. Sofas sold on the market generally include low-back sofas, high-back sofas and ordinary sofas between the first two. The characteristics of the three are introduced below for consumers to choose and buy. Low-back sofa: a light chair that belongs to the rest type. It uses a support point to support the user's waist (lumbar spine). This kind of sofa backrest has a low height, generally about 370 mm away from the seat surface, and the angle of the backrest is also small, which is not only conducive to rest, but also reduces the peripheral size of the entire sofa. This kind of sofa is more convenient to move, light and occupies a small area.
Low-back sofa High-back sofa: also known as aviation seat. It is characterized by three fulcrums, which make people's waist, shoulders, and back of the head lean on the curved backrest at the same time. These three support points do not form a straight line in space, so the technical requirements for making this kind of sofa are high, and it is difficult to choose when purchasing. To make a wooden frame for a high-back sofa, a turning surface composed of three points must be clearly made on the shelf, otherwise it will be difficult to ensure the position of the support point when carrying out processes such as sofa masking, which will bring discomfort to the user. When purchasing a high-back sofa, pay attention to whether the composition of the three support points on the back is reasonable and appropriate, which can be judged by the test seat. The high-back sofa evolved from a recliner. In order to improve the resting performance, it can also be equipped with a footstool. Before placing the sofa, its height can be the same as the front height of the sofa seat.
High-back sofa Ordinary sofa: It is a common type of sofa for family use. Most of the sofas sold in the market are such sofas. It has two support points to support the user's lumbar spine and thoracic spine, which can achieve the effect of matching the curved surface with the back of the body. The angle between the back of this type of sofa and the seat surface is very critical. If the angle is too large or too small, the user's abdominal muscles will be strong and fatigue will occur. Similarly, the width of the sofa seat surface should not be too large, usually within 540 mm according to the standard requirements, so that the user's calf can adjust the sitting position at will and rest more comfortably.
Classification by material
There are four main categories: leather sofas, fabric sofas (actually fabric sofas), curved wood sofas and rattan sofas.
Sort by style
It can be divided into American sofa, Japanese sofa, Chinese sofa, European sofa and modern sofa.
Classification by location used
It can be divided into hotel sofas, ktv sofas, civil sofas, restaurant sofas, office sofas, home sofas, rest club sofas, etc. The occasions used are different, and the sofas used are also unique.