The chair of the human body is designed so that when a person sits, his body weight falls on the bones of the seat, although these bones bear the weight of the body, but the chair must be designed so that the weight of the body is distributed over the entire seat, reducing the pressure of these bones on the periphery. Using chairs with a patterned mattress can help distribute weight.
Seat back angle:
ANSI (American National Standards Institute) recommends an angle of at least 90 to 105 degrees as the back angle of the seat and the seat cushion.
Seat back width:
ANSI recommends a minimum width of 30 to 35 cm in the waist area
The field of vision in a set is a function of the position of the seats. The construction/design regulations of the floor and the general shape of the set play an effective role in the way the seats are arranged. This information, along with the basic concepts of line of sight analysis and design guidelines, can be a result, if not optimal, but acceptable in terms of level. The view of the audience is included.
For this purpose, the parameters of the seat are placed on the basis of the image or the screen. The angle of 30-45 degrees to the perpendicular line on the edges of the screen can be specified.
On the other hand, the height of the image with the screen can also be used to determine the maximum longitudinal distance of the seats, as well as the minimum recommended size or the closest row of seats will be adjusted based on the height of the screen.
