How to adjust the car seat correctly under comfortable conditions?

The adjustment of car seat is directly related to rearview mirror and steering wheel. As mentioned earlier, you can have a look if you are interested.

Quick adjustment:

Step 1: Standard sitting posture.

After getting on the bus and sitting down, move your hips backwards to keep the included angle between the seat cushion and the backrest stable.

Step 2: The height that suits you best.

After sitting, the next step is to adjust the height of the seat. The correct adjustment method should be as follows:

1, will not be blocked by the steering wheel.

You can clearly see all the instruments in the car.

You can clearly see the traffic signs on the street through the windshield.

4. Keep at least one fist on your head to ensure your own safety.

The third step: the angle that suits your back best.

You should also pay attention to the angle of your back. Remember, you can't adjust it to an oblique angle. Although it is very comfortable, it is dangerous for drivers to drive like this. The correct backrest angle should be: the backrest is at a right angle of 90 degrees to the seat cushion.

Step 4: the most suitable distance

The most suitable distance between the body and the steering wheel is determined by everyone's body shape and the length of hands and feet.

The best adjustment method is to straighten your hands forward naturally and put your wrists just above the steering wheel, so as to ensure that you can rotate flexibly when holding the steering wheel and not get too close. In terms of feet, it is necessary to ensure that the joints of the robot are still in a bending state when stepping on the brakes, so that it is easy to control the strength.

Do you refuse to adjust your seat for the old wine in the new bottle?

Everyone can tell the basic knowledge of Block 1, 2 and 3.

The seat is the most contacted part of the body during the use of the car, and the comfort and safety of the seat are closely related to us. The seat of a family car generally consists of a headrest, a backrest, a cushion and an adjusting device. The backrest cushion also includes some skeletons, connectors and fillers. Let's focus on the seat of the family car. As for the more "abusive" racing seat, it is very different from the civil seat in principle and usability, so it is not involved for the time being.

Everyone can tell the basic knowledge of Block 1, 2 and 3.

I don't know how to analyze the seat performance with ergonomics.

We often see similar statements from media commentary articles that XX seats are spacious and soft, with strong support and wrapping ... This has almost become a textbook-like common sentence, but it is difficult for consumers to really understand the characteristics of a seat from these rigid words. There is no doubt that the purpose of the seat is to ensure the safety and comfort of passengers. Combining some common sense of ergonomics will make it easier for us to understand this little friend.

Ergonomic characteristics of seats

A qualified seat should be based on the following principles: firstly, passengers should be able to maintain a good sitting posture, the spine should be close to the natural bending state, the shape and curve of the seat back should be consistent with the relaxed human curved surface, and the waist should be reasonably supported. The hardness of the chair surface needs to be moderate (this will be discussed in detail later), so as to ensure that most of the weight of the body is borne by the ischial tubercle of the hip, minimize the pressure between the front end of the thigh and the chair surface, and avoid numbness caused by poor blood circulation. Headrest can effectively reduce the probability of neck injury in rear-end collision.

In detail, our evaluation of a seat is nothing more than the anti-fatigue ability of the seat cushion for long-term driving, the wrapping of the seat under the nonlinear motion of the vehicle, whether the waist can provide comfortable support, and whether the depth of the seat cushion conforms to the size of one's thigh.

Principles for evaluating seats

The backrest focuses on the waist curve and lateral support.

When driving a vehicle, the support of the body is completed by the spine, hip bones, legs and feet, among which the hip bones and the third and fourth lumbar vertebrae in the spine are the most stressed parts. Keeping the spine naturally bent can reduce the fatigue of the back. Therefore, the support of key parts such as waist and shoulders is directly related to the overall performance of the seat.

Seat backs focus on waist curves and lateral support.

Transverse support is the most different place between backrest. The overall shape, area, bending angle and other data are basically different in different brands of cars (except for the same model of the same supplier). Even if the same car has different configurations, the shape of the seat will often be different except for the different materials.

The lateral support is usually the most different part of the seat.

Lateral support is generally composed of waist support and shoulder support, and many car seats that emphasize sports like to work hard in these two places. The design with wide side and obvious wrapping direction is beneficial to reduce the swing range of the car body and improve driving safety in the case of cornering or emergency lane change.

The lateral support is usually the most different part of the seat.

Seat backs focus on waist curves and lateral support.

Cushion width is necessary and comfort is relative.

Under the condition of making full use of the backrest, the seat cushion should make the hips get reasonable support. As mentioned above, the ischial tubercle of hip and pelvis bears 60% of the body weight when riding. However, there are large arteries and a large number of nervous systems on the surface of the lower thigh, which is not suitable for bearing greater pressure. Therefore, a reasonable seat should be flat and firm under the ischium (the firmness here is relative to other parts of the seat), and the rest parts should be softer. The wider the seat, the more drivers can sit. In addition, the edge of the cushion will generally tilt slightly upward to prevent the buttocks from sliding to the edge.

Cushion width is necessary and comfort is relative.

Although these common sense of ergonomics has been widely used in seat design, there are still differences between different models. Many car owners report that the seat of a certain model (not named here, the mainstream joint venture brand) is sunken after a period of use. This technical term is called bucket seat surface, which will make the force that should act on the ischial tubercle put pressure on both sides of the hip, which will make the hip muscles bear abnormal pressure and cause discomfort after driving for a period of time.

Cushion width is necessary and comfort is relative.

Many small partners have a misunderstanding that the softer the seat, the more comfortable it is. Too soft seats tend to increase the compression surface of hip and thigh muscles, increase the instability of the body, and get tired easily, which is counterproductive. In 1980s, many American luxury cars used sofa-like soft seats, which was definitely a comfortable configuration for passengers to relax. However, for drivers, these too soft seats have relatively insufficient support and are obviously not suitable for long-term driving.

The principle of headrest is the simplest, but it is also the easiest to be ignored.

The headrest can improve the ride comfort and safety of the vehicle, especially the safety. Once the vehicle rear-ends, the cervical vertebra will be protected by the headrest, reducing the space for the head to move freely, thus reducing the impact on the cervical vertebra and protecting the occupants.

The principle of headrest is the simplest, but it is also the easiest to be ignored.

The above three points are the common sense of seats that we should focus on. As for the specific dimensions of the seat (height, width, depth, backrest inclination angle, etc.). ) is of little significance to ordinary consumers. These contents will be discussed in the seat adjustment part in combination with the actual situation, and then how to adjust the seat correctly.

How to adjust the seat correctly

How to adjust the seat correctly

In the final analysis, the principle of seat adjustment is based on this comfortable sitting angle diagram of the human body. From the chart, we can easily see the comfortable angle range between the trunk of the body. Everyone's height and weight are different, so we only need to focus on the backrest angle, elbow joint and knee joint when actually adjusting the seat. According to the characteristics of seat design, there is actually a certain order when adjusting the seat. Generally, it is recommended to adjust according to the order of height-backrest inclination-front and rear-headrest.

Step 1: Adjust the height of the seat.

Proper height is the premise of obtaining good driving vision. When adjusting the seat, the height adjustment is usually the first step, and it is necessary to ensure that there is at least one punch between the head and the roof. In order to avoid the head hitting the roof when the vehicle bumps.

Adjust the seat height

Step 2: Adjust the seat back.

In daily driving, we recommend that the inclination angle of the seat back is 100- 1 10 degrees. When the inclination angle of backrest exceeds 1 10 degrees, the intervertebral disc pressure will be obviously reduced, which is an important reference data for vehicles without lumbar adjustment. After adjusting the height, many car owners are used to adjusting the front and rear of the seat first. In principle, this is not a big problem. It is more convenient to determine the inclination angle of the backrest and then adjust the appropriate distance before and after the seat.

Adjust the reclining angle of the seat back.

Common sense of adjustment: In the case of vertical sitting posture, when the distance between the headrest and the head is 2 to 3 punches, the backrest angle is about 1 10 degrees.

Step 3: Adjust the front and rear of the seat.

Except for people with special height, it is not correct to sit too far in front or back. If the seat is too far ahead, it will reduce the activity space of the limbs, the elbow joint and knee joint will be extremely bent, and the waist muscles will be in a state of tension for a long time, which will easily cause muscle soreness. However, if the seat is too far back, it will inevitably increase the body's forward leaning and increase the pressure on the lumbar intervertebral disc, which will easily lead to lumbar disc herniation and muscle fatigue injury.

Adjust the seat back and forth.

Adjustment common sense: make sure that the knee joint of the leg is still slightly bent after the right foot is completely pressed on the brake, and the angle of the knee joint should not exceed the recommended range of the comfortable sitting angle diagram.

Adjust the appropriate steering wheel angle

In this process, you can adjust the steering wheel to your own angle. The principle of adjustment is that when you keep the position at nine o'clock, your arm can keep a comfortable bending angle, which is generally between 90- 120 degrees. Through the adjustment of the steering wheel, a comfortable driving posture can be finally determined, and a clear view inside/outside the car can be obtained.

How to adjust the seat with leg support function

The seat depth of mainstream models can basically meet the needs of most people, but there are exceptions to everything. Many car owners report that their car seats are not deep enough, resulting in insufficient leg support. To this end, many luxury models have also designed the leg support function intimately, and the driver can adjust the support of the seat to the leg according to his actual situation.

What needs to be explained here is that during the adjustment process, it is most comfortable to put all the thighs on the seat. There are large arteries and a large number of nervous systems on the lower surface of the thigh, especially for the thigh muscles near the knee joint, so it is most appropriate to adjust the leg support to 3/4 of the total length from thigh to hip.

Part IV: Adjusting the position of headrest

Finally, don't forget our headrest. We have mentioned many times that when a vehicle is hit, the head will instantly hit the headrest due to inertia. If the headrest position is too high or too low, the head and neck will be injured to varying degrees.

Adjust headrest position

Common sense of adjustment: the height of the headrest should be adjusted to be flush with the head, that is, the soft part in the middle of the headrest is flush with the upper edge of the eyebrows or auricles, so that when the vehicle is violently hit, the role of the headrest in protecting the head and cervical vertebrae can be maximized. When the headrest has the function of fore-and-aft adjustment, the distance between the head and the headrest should be as small as possible, and the smaller the distance, the greater the cushioning protection effect of the headrest.

The above is the basic content of seat adjustment. Although the seat looks ordinary, the common sense and principles involved are not simple. Knowing this knowledge can accumulate more practical experience for our daily car use. Why not?

Car seat maintenance:

Car seats are mainly divided into fabric seats and leather seats. Let's take a look at the advantages and disadvantages of these two kinds of seats and how to maintain them correctly.

Fabric seat

superiority

1. Not easy to break, long service life, low repair difficulty and aging.

2. Flannel seat has stronger friction, and it feels more stable when sitting on it, and there will be no feeling of slipping.

3. Low manufacturing cost and good air permeability.

disadvantaged

1. It is easy to get dirty and difficult to clean. Dirty things will fall into the seat, which is very troublesome to clean.

2. Poor heat dissipation. Because the fabric seat has strong heat absorption, it will be uncomfortable to sit on it in summer.

leather seat

superiority

1. Easy to clean. Compared with the velvet seat, the dust can only fall on the surface of the leather seat, and will not go deep into the interior of the seat, so the cleaning work can be completed by gently wiping with a cloth.

2. It is easier to dissipate heat. Although leather also absorbs heat, it has better heat dissipation performance.

disadvantaged

1. fragile surface. Sharp and hard objects such as knives, scissors and needles will leave marks on leather and are easy to age.

2. The feeling of sitting is slippery. Because of the characteristics of leather seat material, we will feel very slippery and have less friction when sitting on it.

3. It may burn. If the temperature is high, you need to be more careful before sitting in your seat, but this problem does not exist in winter.

How to maintain fabric seats

1. vacuum

You can choose to use a long brush or a vacuum cleaner to vacuum, and the two are better together.

clean

First clean the dirty part with a brush, then dip a small amount of neutral washing liquid with a clean rag, and thoroughly wipe the seat surface in a semi-dry and semi-wet situation. Finally, clean the seat again with a vacuum cleaner to remove excess water.

3. seat cover

If it is easy to clean, the seat cover is a good choice and can also be used to dress up the seat. Isn't it interesting?

How to maintain leather seats

1. Clean

Like fabric chairs, they need to be cleaned regularly, and dust should be wiped off with a semi-dry wet rag to keep them dry and tidy. If it is too dirty, wash it with a small amount of multifunctional foam cleaner to keep the leather dry.

2. Color matching, fatliquoring and mending

Color matching can recover the damage caused to leather before, and fatliquoring is equivalent to maintenance.

3. Thermal insulation

Leather seats are easy to fade when exposed to the sun for a long time, so be careful to stay away from too strong light sources.

4. Avoid man-made damage

When sitting in a seat, people should avoid the key chain on their bodies and the iron buckle on their clothes from touching the seat to prevent scratches. Prevent liquid from wetting the seat.