摘要 |
<p>The device has a rear wall fastenable to a grill using a fastening unit, and retaining units held on a shaft, which is guided in a rear wall by a recess. A drive wheel is connected with the shaft on a side of the rear wall turned away from the retaining units. A drive unit i.e. link chain, is coupled with the drive wheel and an engine in such a manner that the engine drives the drive wheel over the drive unit. Side parts are connected with the rear wall, such that the side parts are oriented perpendicularly to the rear wall.</p> |