From 1957, together with
Erwin Hymer at
Hymer, he designed
caravans sold as
Eriba (
Erich
Bachem, or possibly
Erika
Bachem after his wife) with names like
Puck,
Pan,
Triton,
Troll and the very rare, large
Titan and
Odin models. These were designed for light weight, the smallest Puck being able to be towed by a
VW Beetle or
NSU Prinz. Despite this light weight, they were unusually well constructed with a steel tube internal frame and an insulated aluminium skin over this, at a time when most caravans were still made of plywood. The basic design continues in production today, over 60 years later, and original caravans are sought after. They are still distinguished by their 'pop top', a section of the fibreglass roof that raises to provide extra headroom, with a canvas cover between. When lowered for towing, this reduces the overall height and wind resistance of the trailer. ==Publications==