Electric Glass Shears

Currently, Firefighters must use two separate tools in order to safely bypass windshield glass in an emergency situation. First they create a hole with a purchase point tool, then they use one of many glass shear tools to cut out the perimeter of the windshield. Could these tools be combined?

There are many tools used by firefighters for the purpose of breaching and cutting windshield glass. The desired tool is compact and easy to maneuver around the perimeter of a car windshield. 

My goal is to design a 2-in-1 Rescue Tool for assisting firefighters for the Weber Rescue Systems brand in response to Maneuverability, Size, and Effort.

On pen and paper, I explored many possible ways for a pick attachment to the body of the electric glass shears. I also imagined different grips for the tool that would allow for the best maneuverability.

Using foam, I explored multiple ergonomic forms and settled on a design that shares one grip for both penetrating and cutting the glass. Through this process I altered my pistol grip into a longer handle that makes up a greater percentage of the tool's form. The glass pick is located on the top of this tool.

In Fusion 360, I built my form and refined it around the constraints of the internals. Weber Rescue often incorporates the Milwaukee brand, so I chose the Milwaukee M12 Red Lithium Battery as the power unit for tis tool.

Modeled in Fusion 360. Rendered with Keyshot and Photoshop.