BAD DESIGN: PROPELLING PENCIL

By Hao Sun

Introduce the drawbacks of propelling pencils• Propelling pencil with eraser on the top• 1.If we erase too hard when using the

eraser, the pencil lead will be pushed out of the pencil.

• 2.Hard to put pencil lead into propelling pencils

• (lead usually breaks)

agree indifferent012345678

# people

# people

Survey about these problems

SOLUTIONS TO DEAL WITH IT the lead is not advanced by pressing on the

eraser (However there are a group of people think

the button is uncomfortable during writing)

DETAILS ABOUT THE SECOND PROBLEM Hard to put the

lead into the hole The lead is too

long and easy to break.

SOLUTION DEALING WITH THE 2ND PROBLEM

Since the lead is not advanced by pressing the eraser, it’s ok to take it off.

Make the hole as the picture shows

REFERENCE FOR PICTURES

Slide number: 1.http://www.pixel-glam.com/viewtopic.php?t=5340 2.http://www.print-gifts.com/products/279/mechanical-pencil-

with-eraser/ 4.http://jhb518.com/list.asp?ProdId=0106079 5. http://www.pergamano.com/plaza/news.asp?news_id=365