Page 23 - Jamie Purcell

Human Factor Grips & Interactions

Input/Output

Injection Moulding

Tooling
cture measured

Grips That are user interactive in raelation to the milk frother is

Average

a With the Hand grip diameter of the milk frother exceeding the average hand grip measurement of
20mm you can see that the handle is too large for the average user. This is one reason why I chose the
reduction of the handle size for my redesign direction. The handle exceeds the average measurement
manuf
by 5mm
43mm
5mm
Button

Button resistance should be kept below 8.9 N (2 pounds)
to accommodate the vast majority of users.
Keeping resistance below 3.1 N (0.7 pound) will
accommodate many disabled users while still providing 20
adequate tactile feedback