Product Design and Evaluation

Dan can complement your design teams to optimize the ergonomic features of your products.  He has the expertise to provide design criteria, evaluate patterns of use, and facilitate user focus groups.  He can furthermore bring his creativity and outside perspective to bear in helping brainstorm innovate design features.

Once your product is completed, he can conduct scientifically sound evaluations to document the benefits, framed in a manner that can be used in your marketing efforts.  He can provide a white paper to help your customers understand the basis of the ergonomics features as well as to summarize the evaluation results.

Toro T-Bar Steering

Dan developed a test protocol and directed the evaluation of a new line of mid-sized professional lawn mowers for the Toro Company.  The company had designed and introduced the mower, which they believed to be easier on operators, but had no objective data.  Dan and his team successfully conducted a study that provided quantitative data that showed lower risk for Musculoskeletal Disorders (MSDs).  Dan also wrote a lay-language report of the findings, and in conjunction with Toro, developed a videotape for professional landscape gardeners to explain and show the results of the study.

 

The study showed that hand and arm fatigue was 29% less than the competitors, a solid fact that was used in promotional literature.

Boise Cascade SPLOX

Dan conducted an evaluation of Boise Cascade’s SPLOX (for Speed Loading Box).  Results showed that the box design reduced in an average of 55% less time to unload a full box of paper into a photocopying machine, plus a 50% reduction in physical demands related to lifting, bending, and awkward arm postures.  More study results are available on the Boise website.

    

This study used Dan’s unique Time and Physical Demands Analysis to show both the increase in efficiency and the reduction of strain on the body:

The study also involved laboratory studies using biomechanics and electromyography:

 

Graco Flo-Gun

For Graco, Inc., Dan participated in the design team to develop a new generation of a power tool, a glue gun.  Activities involved evaluating past experience with the tool and providing criteria for the new design, including:

  • evaluated patterns of standard use

  • facilitated user focus groups to identify needs

  • provided design criteria based on principles of ergonomics

          

        Before                                          After

The new tool involved significantly less ergonomic stress than its predecessor as well as competitors’ tools:

  • tool weight reduced from 5 lbs. to 4 lbs.

  • grip force reduced from 20 lbs. to 8 lbs.

  • wrist postures improved through better grip design

  • grip size was made adjustable to accommodate differing size users

  • contact stress reduced

  • pinch points reduced

  • maintainability improved

  • ease of use improved by better ability to control flow ("feathering in")

  • user surveys indicate greatly improved satisfaction