Nowadays, more and more people tend to buy traditional furniture. Traditional furniture not only looks classy, ​​it is also very comfortable to use, but it requires careful work on furniture. In the traditional chair, the production of the chair is a certain stress. It needs to be designed according to people's different sitting postures so that people can feel comfortable when sitting on it.
Â
The late Ming and early Qing huanghuali high back south official hat chair
Everyone knows that traditional furniture has a high value of appreciation and collection value. The production of chairs is a certain amount of stress. It needs to be designed according to people's different sitting postures. Do you know the standard size of the chair? Let's take a look at it next.
First, the standard size of the chair - sit high
Â
Sitting height refers to the vertical distance from the seat surface to the ground. Because the chair is often tilted backwards, the sitting height of the mahogany chair is usually the height of the seat of the mahogany chair. If the seat has a backward sloping or a concave arc, the height of the chair is the vertical distance from the front center point to the ground. .
Â
Appropriate seat height: The thigh should be kept horizontal with the calf vertical and feet flat on the ground. If the height of the seat is too high, the legs will be suspended and the blood vessels of the thighs will be compressed. If it is too low, it will cause physical fatigue. Practice has proved that the proper height is from the calf socket to the plantar height plus the heel thickness of 25mm-35mm, minus the activity margin of 10mm-20mm.
Â
Early Huanghua pear head helmet chairs
Second, the standard size of the chair - sitting deep
Â
Sitting deep refers to the distance from the front edge to the back edge of the chair surface, and the depth of the sitting depth has great influence on the comfort of the human sitting posture. If the mahogany chair is sitting deeper than the horizontal length of the thigh, the backrest of the human body will have a large inclination, and the waist lacks a supporting point and is left floating, which intensifies the muscle activity intensity of the waist and causes fatigue, and the seat is too deep to make the knee cavity. There was a numb reaction at the place and it was not conducive to standing up.
Â
The horizontal length of the thighs in China's human sitting posture is average: 445mm for men and 425mm for women. Then ensure that the front edge of the seat has a certain distance (about 60mm) from the inside of the knee. In this case, the seat depth is generally between 380mm and 420mm.
Third, the standard size of the chair - sitting width
Â
The width of the seat of the mahogany chair is usually in the shape of the front width and the rear width according to the sitting posture and movement of the person. The width of the front edge of the seat is said to be wide before the seat, and the width of the back edge is called the width after the seat. Sitting width is generally not less than 380mm, for the chair with armrests, to consider the support of the human arm, the width of the armrest to sit as the width of the size, according to the average shoulder size of the human body plus an appropriate margin, generally Not less than 460mm, but it should not be too wide. The shoulder width of the comfortable posture should be based on the natural vertical arm.
Â
Fourth, the standard size of mahogany chair - armrest height
Â
The height of the handrail should be similar to the vertical distance from the lower end of the elbow to the natural sagging node. Practice has proved that the vertical distance from the upper surface of the armrest to the seat surface is preferably 200mm-250mm. At the same time, the front end of the armrest should be slightly higher. As the inclination of the seat surface changes with the angle of the backrest, the general grade of the armrest inclination is 10 degrees to 20 degrees, and the level difference of the armrest in the horizontal declination side is within 10 degrees.
Fifth, the standard size of the chair - seat inclination
Â
When a person is resting, the seated person is leaning backwards to support the lumbar vertebra. Therefore, most of the general seats are designed to tilt backward. The seat inclination is generally 3 to 5 degrees, and the opposite seat back is also tilted backward.
Sixth, chair standard size - backrest height
Â
The size of the backrest is mainly related to the height from the bottom to the shoulder of the hip (which determines the backrest height) and the shoulder width (which determines the width of the backrest). The backrest height and width, the maximum height of the backrest can reach 480mm ~ 630mm, the maximum width of up to 350mm ~ 480mm.
Popular Radiator Valve,Inline Radiator Valves,Vertical Radiator Valves,Radiator Isolation Valve
Ningbo Safewell Plumbing Co., Ltd. , https://www.safewellbrass.com