TR lZ-based portable brush cutter U-shaped handle Improved Design of

 

Abstract: Portable brush cutters were U-shaped handle structure, performance analysis, based on the original design, innovative design by using TRIZ theory, Portable brush cutters Mile handle structure optimization scheme proposed to solve the existence of today's products width is not adjustable handle such issues.

 

Keywords: brush cutter handle TRIZ innovative design

 

    I. Introduction

 

    TRIZ is butyric knowledge, but to man's inventive problem solving systematic methodology. Traditional design methods, a successful design often go through a very long time, spend huge sums more consideration, and the designer's experience, the quality of those who play an important role. There are other small TRIZ traditional design methods, strong deep inventions or innovations according to certain procedures and steps, not just random or days Maxing Cu mental stimulation only. The world market is very competitive, fast design and launch of new products has become the key to survival food industry. TRIZ theory is the core principle of generating new jobs in the process specific, and proposed rules, algorithms and principles of the invention for designers to use, it has become a more complete theory of innovative design.

 

    G. founder of TRIZ S. Altshuller convinced from the outset the basic principles of inventive problem is an objective reality. Any area of ​​product improvements, changes in technology, innovation and biological systems, are present generation, growth, maturation, aging, death process, there is a pattern. If people mastered these laws, what can dynamically for product design, and can predict the future trend products. TRIZ is these laws synthesis. Applying this theory, people can greatly accelerate the process of inventions, and can get high-quality and innovative products. Innovation in product design with the ultimate objective is to eliminate the spear Xi calendar. The main contradiction of TRIZ spear calendar for technical and physical contradictions.

 

    Now more general problem-solving process is: practical issues related to the problem to find the parameters of the application of TRIZ TRIZ standard solutions obtained correspond to the solution of specific problems specific to get the final solution.

 

    TRIZ theory guidance products with innovative design, can be the fastest way to get to the scientific problem solving orientation. The following through TRIZ theory for portable brush cutter U-shaped handle for innovative design improvements.

 

    First, Portable brush 1; ILU-handle problems

 

    Portable brush cutter Application Ding filling small clean-up operations in the forest, when the blade cutting irrigation, you need a larger level of operating force, the level of operating force operation directly affects the size of the body balance. If the operating force is too general imbalance causes the body caused by falls, especially in noisy Lu, vibration, heat load and the weight of the combined effect of the negative, the body's balance function is affected. If there is a large body of transverse horizontal force small, potentially dangerous items which fall will increase. Brush cutter handle width, front and rear grip height on the distance and the operating force has a significant impact, and the handle width from front to back and bowed held highly significant interactions. So u-handle brush cutter man-machine interface and parameter directly rationalize IMPACT operating force of operator fatigue, stability, security and operational efficiency umbrella of an impact. A handle width (w) and the height (G) regression analysis equation:

 

    W = 0. 875576G-990. 23

 

    Handle width and height in a good linear relationship, by this equation, as the operator changes the height, the width of the handle will vary with the paternity. "One can not now handle design width deep, above conclusions portable brush cutter U-handle direction of improvement.

 

    Third, based on TR Carpenter portable brush cutter handle design

 

    With the increase of the height of the user, holding the handle width and height Yi increases. Wanted to improve the features of making the height and width of the handle along with the rise of the user can be arbitrarily deep section. This feature can cause problems is the handle of the reliability and manufacturability. ["3 matrix determined by the conflict of principles of the invention can be used, namely the" split "," pre-compensation "," does not meet or exceed the role, "" parameters. "

 

Of the "split" and "parameters" two kinds of analysis shows that the principle must be changed to ensure the handle handle shape and reliability of two premises, the whole handle split into two local children or change its parameters is worthy priority programs. Handle is divided into several sections, each threaded connection between the selection so that it can handle the width of the deep.

 

 IV Conclusion

 

    Application of the TRIZ small mechanical product innovative design, not only to help designers build problem-solving model and indicate the direction of solving the problem, you can solve the innovative design of technical problems. In this process, the introduction of technical contradiction matrix Youming TRIZ principles and methods such as creation tools, a better solution exists in the product technology spear calendar and physical contradictions, to obtain the optimal design. With the deepening of the promotion and application of TRIZ, mechanical product innovation will achieve greater success.