[Double-use sofa folding bed] folding sofa bed
principle folding multifunctional sofa bed purchase
The principle of folding sofa bed
The folding of the sofa bed is because the seat frame and the back frame are connected by two iron joints, which are designed like the pedals of a bicycle. You can only go in, and when you press it backwards, you will be pushed back. At the last press, there is a switch to loosen the supported joints, so you return to the original lying down.
Flying bed sofa bed How to open
Pull out the legs of the folding sofa bed forward; move your hands upwards from the gap under the two large throw pillows, and place them flat at 180 degrees. On both feet.
How to choose a folding sofa bed
1. The right size
Folding sofa bed It is necessary to sit and lie down, so the size must be appropriate. Generally, the height of the seat surface is between 35-42 cm, the seat depth is between 48-55 cm, and the inclination of the backrest is preferably between 100-108 degrees. , The height of the armrest is between 62-65 cm, which is in line with the principle of ergonomics, otherwise it is not conducive to the relaxation of human muscles, and it is easy to cause body pain after prolonged use.
2. Firm frame
The frame of the foldable sofa bed is generally a hardwood or metal bracket. Shake it repeatedly from side to side to feel the firmness of the frame, and with the consent of the salesperson, remove the bottom cloth under the seat and take a closer look. There is no decay, no moth, no scar, no bark or wood. It is made of smooth and hard wood, and the connection between the materials is not nailed with nails, but mortise or notched to each other, and then glued firmly. This is a good folding sofa.
3. High-quality fabrics
When purchasing a leather folding sofa bed, the leather surface should be rich and shiny, without scars, with fine texture and texture. Pinch one place and pull it up, it should feel flexible and strong, and the wrinkles can disappear or not be obvious after sitting. This kind of leather is a good leather.
When choosing a fabric folding sofa bed, it is necessary to carefully observe whether the fabric is fine and smooth, without jumping silk, and thick and wear-resistant. Choose a sofa bed with a detachable bed cover, which is not only convenient for cleaning, but also can be used in the future. Change to a new bed cover to increase the sense of change in the room.
4. Sponge and elasticity
High-resilient foam sponges with a density of 30 and 25 kg/m? or more should be used for high-end sofa seat cushions and back cushions, respectively. . In order to improve the comfort of sitting and lying, some foams are also soft-treated on the premise of ensuring that the density is not reduced, and some are equipped with vertical springs in the seat cushion to make the sofa have higher resilience and anti-aging properties. Under normal circumstances, it is best for the sofa cushion to be recessed about 10 cm after the human body sits down.
5. Flexibility of a pull-out sofa bed
Most pull-out sofa beds require the folding card to be opened when ‘converting’ from a sofa to a bed Mouth or pull out the chute, and some sofa beds are also equipped with pulleys at the bottom, so that the owner can easily transfer the position, so these movable ‘joints’ are also the key parts of the sofa bed. When purchasing, the sofa bed should be pushed, pulled or opened and closed several times by hand, and it is satisfactory to feel that it is smooth and not stuck when changing from different angles.