In today's social development trend, the outdoor iron chair has become an indispensable part of our life.
However outdoor outdoor iron chair has a great influence on the use of local form and scale, so when we design must follow certain principles, small make up is simple and introduce the design principle of Stackable Outdoor metal chairs.
1. The outdoor iron chair is so high that the legs are suspended, not only the muscles of the legs are pressed, but also the upper leg, lower leg and back muscles are pulled, and fatigue will soon be exhausted.
2, Stackable Outdoor metal chairs sit face is too low, if low to knee Angle is 90 ° or less people body pressure excessive concentration, abdominal muscles produce extrusion cannot be the guarantor of the lumbar vertebrae Zhi department of suitable condition, affects the back muscles, increasing the load time of back muscles, can make the person produces pain and discomfort cause fatigue.
3, outdoor iron chair sat the width, refers to sit the front length by the width is too narrow, in addition to feel stiff cannot be used properly, on either side of the body muscle will feel squeezed;
The width of the sitting surface is too wide, and the arms are bound to extend outward, stretching the muscles of the latissimus dorsi and the deltoid muscles of the shoulder. Both of these are prone to fatigue.
4. The length of the backrest has a large range of dynamic activities, which is not set back.
The static and dynamic work and rest in order to obtain the corresponding support and not getting in the way of work and activities as appropriate, back of a chair height can be made of low begins to increase gradually, the first and second lumbar spine maximum scapula, neck.
Static rest can require the back length to support the head.
I hope the above introduction will help you.