As the person's back rises and falls, the person's position on the cushion will also change. For example, when the back falls, the person will move his buttocks backwards, and vice versa. You can control the back of the sofa to rise and fall through the up and down buttons on the button. Electric sofa with waist top device: an electric sofa whose seat cushion can be moved at the same time. When a person is sitting, the back of the sofa is not only raised, but also two pillows can be raised at the waist and head, which can cushion the head and waist of the person, which will be much more comfortable; when the back is lowered to flat When one can lie down and rest, the back is flat and only the head has a pillow.
There are more high-end double electric sofas, three electric sofas. When sitting, the back is up, but there is no need for a footstool in the front, and the feet can be placed on the floor naturally or in the footbath. And when a footstool is needed, it can come out naturally. (That is, the footstool is independently controlled by another set of buttons.) But because it is built on a sloped top, its bearing strength is slightly lower. (That is, a footstool is raised from the bottom of the seat cushion and then independently raised.) The structure is but complicated, but the performance is more reliable and the grade is higher.
The four-electric and five-electric devices are based on the three-electric devices with the addition of a back waist support device and an armrest lifting device. The electric massage system is to set up massagers on the sofa corresponding to the neck, back, waist, buttocks, etc. The massagers include vibration massagers, rolling massagers, airbag massagers, manipulator massagers, etc. Electric heating and electric cooling are added with PTC electric heating elements and cooling elements in the cushion and back, making people more comfortable.
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