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Written by: Erik
11/7/2008 10:49 PM

Mechanisms are essential to products. They provide access to the features and benefits of a product and often are integral to the man-machine interface. They are the means to convert a simple user intention and interaction into a useful action of the product. Because they are usually very connected to the user interface, a mechanism's execution has a huge impact on the user's perception of the product as a whole. Therefore, it seems reasonable that strong focus is given to the design of mechanisms within a product. How many times have you used a product with levers and buttons that either broke or just didn't feel right? Imagine one example. What was your overall impression of that product? It's very possible that the product you're thinking of actually functioned well otherwise, but had poorly designed mechanisms.

Mechanisms are used all over the place in products, and vary greatly from simple to complex. At their core is the ability to transmit force into useful action. Ideally, a user would perform the action themselves, so the ultimate goal from a user's perspective is to make the mechanism feel as if they are performing the action themselves. However, there are many material and physical properties as well as manufacturing demands that stand in the way of every mechanism and attempt to prevent mechanism action from happening smoothly and seemlessly. Because mechanisms typically alter somehow the direction or magnitude of force a user is applying, provide as many cues to the user as to how to control the mechanism as possible. This includes visual displays, texture, force response, color, audible response, among others.


Complete article... at www.productdesignresources.com

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4 comments so far...

Re: Improving Mechanism Design

Mechanisms, no doubt, are inherent to the overall functioning of a device. To improve upon mechanisms is to improve on the product itself. I guess that is the reason that so many virtual mechanism design softwares are now available to experiment well with it before implementation.

By jigyasa on   11/8/2008 12:42 AM

Re: Improving Mechanism Design

What I have found is many new things just don't have as good a feel as older things do. Keyboards are lighter and have more functions but don't last as long and are just not as comfortable as a old one I have from 25 years ago.

Mice are the same way. Much better in function, but as far as comfort and durability go they just plain suck unless you buy one for $100 or more. I want to spend my money on my child's education, not a overpriced rat!

By Taki on   11/10/2008 11:28 PM

Re: Improving Mechanism Design

You are right, there needs to be better function, especially in the area of where they connect to the board (if there is one). I think that when you have a great product but the it does not function properly due to poor mechanism design, then you are bound to have to keep replacing things. Now I know they are building disposable items more and more, but we need someone that can build for long term use.

By attagirl on   11/15/2008 10:49 AM

Re: Improving Mechanism Design

As a computer engineer, i know how important is the design process. The design process is an important and very critical phase where the system is developed on how to achieve the desired output. These days people have the habit of following "time to market" strategy and compromise on certain standards. Hence the irregular functionalities and no life for the product.

By descorpio on   11/21/2008 9:18 AM

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