Model Selection Analysis |
As a manufacturer of office furniture we adopted the following naming convention to classify products. ERGONOMICS Ergonomics is the study of designing devices that fit the human body and their adaptation to human psychophysical abilities. Its purpose is to create a man – machine - environmental conditions model which effectively uses the effort of human work.
MOTOR SYSTEMS
Properly profiled upholstery does not provide full satisfaction of ergonomic sitting, therefore there are universally used devices, mechanisms and control systems ensuring the comfort of work.
HEIGHT AND WEIGHT
Individual height and weight determine the choice of a specific product model. Tall users with a massive physique should direct their attention to chairs and armchairs, in which a seat and backrest are made as a whole and are not put together as a structure with accessories structurally linking these two important elements. Significant height determines selection of a product with a high backrest form and a large seat.
SEAT
LARGE SEAT Limits the ability to use armrests and in case of adjustable armrests hinders their usefulness. In case of a profiled backrest, a too large seat causes a natural movement of the seat axis, which adversely affects body position of a sitting person.
DEEP SEAT A deep seat’s edge may put pressure on thighs which results in leg numbness. SHALLOW SEAT
Causes sliding down of a seat. SEAT’S HEIGHT
All chairs and armchairs models are equipped with a height adjustment system. Commonly used are two regulatory systems:
BACKREST Taking a seat in the chosen model of a chair or an armchair, it is important to pay attention to the angle formed by a backrest and a seat. The correct angle should be greater than 90˚ as it ensures a natural position of internal organs. ARMREST
A prolonged stay in the sitting position causes fatigue of the lower limbs. |