Force

What it does

Cars are getting bigger, making it harder to load roof boxes and ski racks. Reaching the roof can be a challenge. „Force“ is an innovative roof rack with a unique mechanism that lowers the roof box with a single movement, making loading and unloading easier.

Your inspiration

Some time ago, I saw two skiers use a step ladder to retrieve skis from their SUV’s roof. While creative, it was cumbersome and dangerous on icy parking lots. This sparked the idea for a better solution. After experimenting with Lego models and 3D-printed prototypes, I developed a mechanism that lowers the roof rack with one motion. This simple solution aims to make loading car roofs safer and more convenient without needing extra tools.

How it works

The roof rack consists of five structural components that are intelligently connected through slide bearings and a central belt. Thanks to innovative connection points, the roof box can be lowered in a smooth motion from the roof. This process can be carried out either manually using a crank or comfortably with an electric motor. A space-saving worm gear allows the mechanism to be locked at any time, enabling continuous height adjustment. On top of the roof rack, there is a T-slot profile that enables the attachment of not only roof boxes but also a variety of accessories such as bike racks, ski carriers, and more. This design combines efficiency, ease of use, and flexibility, making it a highly practical solution for a wide range of outdoor activities.

Design process

At the beginning, I thoroughly examined the problem and conducted a survey on roof boxes. My suspicion that roof boxes are often difficult to access was quickly confirmed. I then researched existing solutions, both online and locally at the Ehrwald ski resort. Armed with a thermos of tea, I spent an entire morning observing the happenings in the parking lot. Despite interesting approaches, I felt that the full potential had not yet been reached. Time and again, the idea of an elegant roof rack that effortlessly lifts the roof box from the roof came to mind. Since the mechanism, as expected, is a central part of the product, I began early with Lego prototypes and later also with 3D-printed models. After about two months of "trial and error," I managed to develop a functional model. I then focused more on the aesthetics, taking into account aspects such as aerodynamics, dirt resistance, and attachment to the car roof. Finally, I created exciting renderings.

How it is different

There are currently very few comparable solutions in this category. What is unique is certainly the intelligent mechanism that allows the entire movement to be carried out in a single motion.

Future plans

In theory, as well as in the scaled-down model, the product already works flawlessly. The next step is to precisely calculate the exact forces acting on the system. Following that, the construction of a 1:1 prototype will take place to test the functionality under real conditions and further optimize it.

Awards