Road paver or feeder with material retention device with overload protection, material retention device, and method for protecting a material retention device

A road paver or feeder comprising:

• a machine frame;
• a travel carriage powered by a drive unit;
• a material hopper with a material retention device arranged in a front in an operating direction, the material retention device comprising at least one fastening device and a retention element fastened to the material hopper by the fastening device,
• wherein the material retention device has an overload protection device configured such that, in response to an applied overload, the retention element detaches from the material hopper and the fastening device, with the fastening device remaining on the hopper, without damage, and
• wherein the retention element has a fastening opening, through which the fastening device penetrates the retention element, and a release recess, the release recess being a slot running from the fastening opening to an edge of the retention element.

A road paver or feeder comprising:

• a machine frame;
• a travel carriage powered by a drive unit;
• a material hopper with a material retention device arranged in a front in an operating direction, the material retention device comprising at least one fastening device and a retention element fastened to the material hopper by the fastening device,
• wherein the material retention device has an overload protection device configured such that, in response to an applied overload, the retention element detaches from the material hopper and the fastening device, with the fastening device remaining on the hopper, without damage, and
• wherein the at least one fastening device comprises a plurality of fastening devices, which are arranged on the retention element vertically staggered to each other.