Back height
Высота спинки кресла; для моделей с изменяемой высотой спинки, как правило, указывается максимальное значение.
Высота спинки измеряется от сидения до верхнего края. По сути, это высота опоры, доступной для спины. В некоторых ситуациях на этот показатель можно не обращать особого внимания — например, если кресло предназначается для посетителей и роль спинки в нем чисто символическая. Однако если сидеть в кресле предстоит часто и подолгу — стоит учесть и этот момент. В идеале лучше всего попробовать «вживую» несколько кресел и выяснить, какая высота спинки для вас является наиболее комфортной. Если же такой возможности нет — стоит решить, до какой области на теле должна доставать спинка (до лопаток, до основания шеи и т. п.) и замерить, на какой высоте от сидения находится эта область в сидячем положении. А если вам нужна конкретно опора для затылка — стоит выбирать среди моделей, оснащенных подголовниками.
Спинка считается
высокой, если она имеет высоту не менее 65 см. Благодаря таким размерам кресло обеспечивает опору практически на всю спину сидящего человека, а нередко — еще и на затылок. В то же время стоит учитывать, что далеко не всякая высокая спинка является подголовником.
Seat size (WxD)
Dimensions of the seat installed in the chair in width and depth (from the back to the front edge). For models with variable depth (see "Adjustments"), the maximum value is taken into account when the seat is pushed forward to the stop.
Most modern chairs are designed for the average adult, so paying attention to size is primarily for people of a large, or, conversely, miniature physique. In width, the average is considered to be 45 – 55 cm, the narrowest models are up
to 40 cm wide, in the widest it can
exceed 60 cm. Similarly, a depth of less than 40 cm is considered small, up to 60 cm — medium, more than 60 cm — large.
Seat height
Seat height from the floor. The optimal height for a person of average height is considered to be 40 – 50 cm, however, this moment is largely subjective, and the comfort of the chair for a particular user depends heavily on his preferences and physique. Thus, many models have the ability to change the height in a certain range (see "Adjustments"). To choose, it is best to determine “live” at what height you are comfortable sitting, and find a model with the appropriate characteristics.
Waist support
Lumbar support is not so much a function as an additional element of the chair's equipment. It is a protrusion in the lower part of the back, placed in such a way that it coincides with the natural deflection of the human spine in the lumbar region. Thus, the backrest provides additional support, makes it easier to maintain a natural posture and reduces the likelihood of problems with the spine.
Removable cushions
Removable pillows can be both under the head (with their help, the back bend in the neck area is additionally regulated), and under the back (act as an auxiliary lumbar support). Basically, they come in pairs, but it happens that either a pillow for the head or only for the back is supplied with the chair. As a rule, removable pillows are fixed on the belts.
Backrest tilt
The ability
to change the backrest tilt back and forth. Allows users to adjust the chair depending on how they prefer to sit: straight or slightly leaning back.
Height from the seat
The height of the armrests installed in the chair relative to the seat. In models that have the ability to adjust the armrests in height (see "Adjustments"), the range of such adjustment is usually indicated.
The overall comfort of using the chair depends on the height of the armrests, but this parameter is largely subjective: even people of the same height can differ in physique and personal preferences. So if comfort is of fundamental importance to you, it is best to check live what armrest height is optimal and choose a chair with the appropriate specifications.
Adjustment
Armrest settings can be quite extensive. In everyday life, there is even a marking 1D, 2D, 3D, 4D, depending on the number of adjustments. The following adjustment options are available:
height,
length(forward / backward),
width(right / left),
tilt and
swivel(right / left). More about them:
- Height. The ability to adjust the height of the armrests relative to the level of the seat. This feature allows you to adjust the arm rests for maximum comfort and minimize shoulder and neck fatigue.
- Turn (right / left). In this case, the possibility of turning the armrests to the right or left is implied, so that they are not parallel, but “look” in different directions.
— By length (forward / backward). Length adjustment refers to the ability to move the armrests back and forth for the convenience of placing hands under a certain physique of the user of a computer chair.
- By width (right / left). Adjusting the position of the armrests to the right or left in a horizontal plane. The stem adjustment contributes to a comfortable fit and allows you to adjust the chair to a certain arm span.
- By tilt. This adjustment assumes the presence of armrests mounted on swivel mounts. It can work as a height adjustment: turning the armrest in the mount changes not only i
...ts inclination, but also the height of the point of contact with the arm. However, the matter is not limited to this: in many models, the handles can be placed vertically (raised or lowered) and, in fact, the armrests can be removed in this way.
If it is assumed that the position of the armrests can only be adjusted in height, they are marked with the designation 1D. For 2D armrests, in addition to the height adjustment, the ability to rotate the palm rests to the right / left (around the axis) is added. 3D armrests are adjustable in height, rotate around the axis and move back and forth. Finally, 4D armrests are considered the most functional - they additionally have the ability to shift the surface of the armrest to the side.Back material
The main material used for the back of the chair. Note that some models are available in several design options that differ in materials; for such models, all available options are given.
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Fabric. Relatively inexpensive and at the same time quite practical material. It has good strength, unpretentious care, while it can be performed in a variety of colours and designs; in addition, it provides good ventilation, which can be useful in the heat.
— Skin.
Genuine leather is expensive and well emphasizes the status of the owner (especially since the leather products themselves look solid and rich). Accordingly, the main area of use of this option is executive chairs (see "Appointment"). On the practical side, the skin is durable, quite pleasant to the touch, but it does not breathe well (which can create discomfort in hot weather) and requires some care, otherwise it may lose its “presentation”.
- Leatherette. There are many varieties of leatherette, which differ markedly in price and properties, and the most advanced of them are used even in premium executive chairs.
Leatherette backs are not as demanding to care as genuine leather, but are less durable and more susceptible to wear and abrasion.
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Grid. The backs are in the form of a rigid frame, in which a fabric or synthetic mesh is stretched. Th
...e main advantages of such designs are light weight and good breathability. The design of the nets allows them to be used even in executive chairs. Of the noticeable shortcomings, one can single out perhaps a slightly lower reliability and greater complexity of repair than in a fabric similar in many respects (see above).
— Plastic. Pure plastic backs are most often used in chairs with seats made of the same material (see above). They are durable and inexpensive, but due to their rigidity they are rather inconvenient, as a result of which they have not gained distribution even among models for visitors.
- Wood. Wooden backs are in many ways similar to the plastic ones described above, except that they cost a little more and can have an original appearance due to the texture patterns of the tree. They are also rarely used because of the rigidity and the inconvenience associated with it.
