MAE 377 Final - MAE 377 Product Design in a CAD Environment...

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MAE 377 Product Design in a CAD Environment Final Project # 26 Weed Puller Design By: Wany Chong 3036-7234 April 28, 2005
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Table of Contents: I. Problem Identification……………………………………………. II. Design Analysis…………………………………………………… III. Appendix A. Initial Hand Sketch…………………………………….. B. Multi View Working Drawings………………………….. C. Assembly Draw with Bills of Materials……………………. IV. Costs Analysis…………………………………………………………..
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I. Problem Identification The purpose of this device is to resolve the difficulty that elderly people have in gardening. Specifically, this product is designed to pull out weed from the ground with the ease. It should also be comfortable and simple to carry around from spot to spot. The production of this device will target the elderly whom may have problems bending their backs and knees trying to pull out weed off the ground manually. With this in mind, the device will be operated while they are standing up straight. As people get older, their bodies may suffer from osteoporosis and fatigue. Because of this, the “weed puller” will be designed with ease of operation and with lightweight materials. Generally, the elderly should avoid garden labor or any labor if they lack the capability. Since this weed puller is made for them, the elderly have the option of either operating the device themselves, or force their grandchildren to do it for them. With this in consideration, not only should the weed puller be designed for adults, it should be designed for children as well. Because adult and children comes in all different shapes and sizes, this weed puller must be fully adjustable to satisfy the operator. Realistically, if a garden tool was designed specifically for older people, there is no reason why someone younger cannot operate it. But because it is primarily designed for the elderly, these factors must be considered relevant to them: - Ease of operation - Weight and Material - Adjustability - Safety - Maintenance and Storage - Appearance and Packaging Also, of course, it has to work.
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II. Design Analysis Ease of Operation: One of the primary guidelines in design the wee puller is that it has to be operated with ease. This device must be able to perform its task in one mechanical motion. Basically, the weed puller will be held by the handle like a rifle and then it is stabbed into ground where the weed’s roots are located. With the butt firmly pressed against the shoulders or underneath the arm, the lever is cocked back and the arms will collapse onto the roots and pulls it out at the same time.
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