8 control console and seating design.ppt

Chapter 8 Control console and seating design Outlines Control console(控制台) design Seating design 8.1 Control console design 8.1.1 Console design key points The critical point is that the displays and controls must locate in the proper workspace of operators’ normal working. Allow the operator observes the displays and perform all controls efficiently. Provide comfortable postures for long time working. 1 Work surface of console 2 Types of displays panel 3 interferential point height above the console 8.1.2 Common console design 1 坐姿低台式控制台 8.2 Seating design 8.2.1 General principle of seat design Promote Lumbar Lordosis (促进腰椎前弯) Minimize Disc Pressure (减少椎间盘压力) Minimize Static Loading of the Back Muscles(减少背部肌肉的静态载荷) Reduce Postural Fixity (减少固定姿势) Provide for Easy Adjustability (提供方便的调节) 1 Promote Lumbar Lordosis(促进腰椎前弯) 5 Provide for Easy Adjustability Controls can be easily reached and adjusted from the standard seated work position. Labels and instructions on the furniture are easy to understand. Controls are easy to find and interpret. Tools are not necessary. Controls provide immediate feedback (for example, seats that adjust in height by rotating the seat pan delay feedback because the user must get up and down repeatedly to determine the correct position.) The direction of operation of control is logical(合理的) and consistent. Few motion are required to use the controls Adjustments require the user of only one hand. 8.2.2 Specific design recommendations Seat height Seat depth and width Contouring(等压线) and cushioning(坐垫缓冲) Seat design parameters 3 Contouring and cushioning Although the primary weight should be supported by sitting bones, seats should provide for a distribution of the weight over the entire buttocks(臀部), with the pressure decreasing from these bones to the periphery(外围) of the buttocks. Such a weight distribution can be aided by the use to contoured seats. The density and thickness of the seat-pan cushion(坐垫) affects pressure distribution.