How to buy a chair ?

In our introduction to the office furniture, I am afraid that the most important need for the concept of health is the chair, but this concern is correct, think about it, how much time a person will spend in the office? Is it eight hours, or nine? Even if you will often leave the seat to go somewhere else, I can guarantee that you sit in the chair time is definitely more than six hours, there are statistics that point out that an office worker must spend eighty thousand hours in the chair in a lifetime, almost equal to one-third of the life of the time, so of course this lifelong companion can not be unnoticed.　　First, must pay attention to ergonomics, second, must pay attention to the right amount of support, third, can retain the natural curve of the human back chair seat, fourth, sit up very comfortable, but also be able to use for long periods of time, fifth, light, fast, accurate adjustment system, sixth, safe, reliable five-clawed feet, seventh, safe, flexible and durable chair wheels, eighth, very strong and durable, will not cause scratches. As for the content, the author will be in the subsequent purchase points for the reader to explain more detailed.　　If you can meet the above points, is considered a really good chair. However, the chair is not a kind of furniture that can be independent of other objects outside the office, so when it comes to the good and bad office chairs, it is impossible not to the surrounding environment, the user's main job, the way of operation and other factors into account. However, a good office chair has an extreme direct impact on employees, so buyers must be absolutely cautious.　　Selection focus: help maintain the natural curve of the spine backrest To avoid sitting, the lumbar curve by the unnatural pressure, so as to affect the health of the body, the back of the chair must be accompanied by ergonomics of the lumbar cushion, so that you can sit down, close to maintain the natural curve of the lumbar vertebrae, in order to obtain a more comfortable, healthy posture.　　Comfortable, and can sit for a long time In addition to maintain a good body curve, a chair must not forget that is to sit comfortably, and to sit comfortably, the cushion is of course extremely important, in general, the best chair cushion is a one-piece molding, so as to maintain the elasticity is not easy to deform, but also because of the extremely important influence of the muscles on the support of the body, so excellent cushions naturally have to give the body proper support, and thus can reduce fatigue, so the chair cushion is the best way to keep the body comfortable and healthy. Can reduce fatigue, so the softness of the chair cushion is too high or too low can not, although this also involves a person's weight, but the quality of really good chair cushion, roughly there will still be a certain degree of body weight tolerance, even if the user sits on it for a long time, but also will not feel overly tired.　　Chair seat must meet the human body curve of the three degrees of curved surface Curved chair seat can increase the thigh bottom and buttocks and chair seat contact area, so that the pressure is evenly dispersed, so as not to focus on a certain point, and because of a slight tilt, but also has the effect of stabilizing the pelvis, to avoid sitting will be sliding forward, in addition, the rounded seat design, but also to reduce the inner side of the knee joints to produce friction and contact, is very good for health.　　Chair with the degree of Although the nature of the work can be different and add the purchase of different office chairs, but most of the chairs in fact, there is no restriction on the use of the chair, so when purchasing, if the chair with the high, the greater the chance of being purchased, for example, the chair can be with the user's body to make different adjustments to the movement, because the user can not be only a sitting position, if it is limited to death, the chair is useless. If it is limited, the chair is useless.　　Chair can be tilted parts Different office chairs will have different tilting parts, can be divided into the following broadly: back, seat, waist can be tilted; back tilt, seat does not tilt; seat the front edge of the seat is fixed, the seat of the back and back can be tilted; back and seat can be tilted; back can be tilted and so on the five types of purchasers can be in accordance with the company's internal users of the different nature of the work to be purchased so that the staff of the This will be a great benefit to the staff.　　The degree of tilt can be divided into the following categories: the back with how much strength to tilt how much; can be adjusted according to the preferences of the person sitting in the chair; can be fixed tilt angle; tilt angle has been set; but it should be noted that these conditions are not contrary to each other, a chair may have the same time with the above three conditions, or may only have two or one condition, the purchase of special attention must be paid to.　　Fast, light, accurate height adjustment device Everyone's height needs are different, but because the height of the table is fixed, so whether the chair can be well adjusted to the height of the chair has become one of the very important conditions, because too high a chair will let the user's feet hanging in mid-air, pressure to this part of the blood vessels, resulting in poor blood circulation and sitting posture, but too low a chair will also allow the chair to reduce the contact with the body, the pressure is concentrated in the sciatica, all the pressure on the sciatica. However, too low a chair will also reduce the contact surface between the chair and the body, the pressure is all concentrated in the vicinity of the sciatic tuberosity, the thighs and the torso of the small angle between the compression of the internal organs, and most importantly, too low a chair will make the desktop appears too high, hands must be slightly lifted to be flat on the desktop, will certainly produce shoulder and arm pain.　　Generally speaking, the current height adjustment device are pneumatic, adjustable easily for the, accuracy is also high, may wish to try to sit and see when buying can be known.　　Five claw chair feet According to research, the number of chair feet and the use of flexibility has a very big relationship, four claw chair feet can easily lead to imbalance, to sit on top of the user fell on all fours, and six claw chair feet although more contact points with the ground, but also is not a good design, because the chair feet too much easy to trip over the user, the five claw chair feet or the most in line with the need for the design of the way.　　Safe, flexible and durable pulley Because of the pursuit of the chair's convenient mobility, so it will be equipped with chair wheels for rapid gliding, because the nature of the floor and materials are different, so in the purchase of chairs must pay special attention to the design of its pulley, carpet is suitable for harder pulleys, hard flooring is more suitable for soft PU wheels, in this way, the wear and tear of the wheels will be thus reduced, and security will also be improved as a result.　　Sturdy and durable, but can not scratch the clothes