Study On Designing Method Of Double-elliptical Trainers Based On Ergonomics

In recent years, the mass sports exercise and fitness upsurge has generally appeared in the world scope, and the fitness equipment has presented more and more prosperous market situation. But, for our country's fitness equipment started later, and the products' scale and technical content are lower, there is a wide gap compared with the advanced countries. Facing the domestic and foreign steep market competition as well as the consumers' higher and higher request, we should strengthen discipline research and use the high and new technology to speed up our country's fitness equipment's development.On the base of the study on fitness equipment market present situation, this paper proposed: considering human factors, carrying on ergonomical design is the inevitable way that strengthens our country's fitness equipment products' competitive power. Designing can create market, and the designs which meet customers' potential needs can repay the enterprise astonishing benefit. Industrial design's core is "human-centered" design. Ergonomics is the important theoretical basis to realize "human-centered" design, and is also the most important target that weighs the contemporary products' design level.This paper studied human factors that must be considered in the fitness equipment designing, and systematically summarized fitness equipments' ergonomical design methods, including fitness equipment's universal design, paying more attention to fitness equipments' software, human-centered standardized design process, and appearance & modeling design method.The fitness equipment is a kind of special product which is close connection with human, so the coordinated degree between the human and fitness equipment should considered firstly;The essence of fitness equipment's universal design idea is: the design not only can overcome the barriers of special people(the aged and disabled), moreover can benefit the healthy;Fitness equipment without software is impossible to achieve satisfactory fitness effect, the fitness equipment's software is essential just as computer's software essential to computer;Human-centered standardized designing is the important method which the enterprise approaches consumers, and obtains the product's international competitive power;The outward appearance and modeling design is the special design which determines fitness equipment product fine "outward appearance quality", and it determines coordinated relations between the product function, the equipment performance and the structure.Finally, this paper carried on function, structure, and modeling designing of double-elliptical trainer (one kind of improvement of currently popular elliptical trainer) in the viewpoint of ergonomics, carried on the movement geometry, dynamics analysis of its organization, and proposed concrete design criterion and method. Specially, this paper studied human's ankle loci experimentally, which is an extremely important human factor in double-elliptical trainer's design, and carried on qualitative analysis of the experimental results.