If one trailer should be towed by personal vehicles as well as freight vehicles, it is necessary for its drawbar to be able to adapt to different heights of coupling devices. Height-adjustable drawbars serve this purpose. We have the following drawbar types in our product range for such use case:
A unique innovation of KNOTT Slovakia. Very comfortable and simple operation of the stepless height-adjustment by the means of a single handle. All parts of the mechanism, and in the case of a braked version, all parts of the overrun brake system as well, are effectively hidden and protected inside the drawbar. This elegant solution was awarded by the National Design Award in 2005. A version without an overrun brake is designated as the KHDU type.
A traditional height-adjustment system with two toothed knuckles. Simpler in design, but much more demanding in operation, than the height-adjustment system used in the KHD drawbar type. To make the height-adjustment easier, we offer an auxiliary lifting mechanism with a gas strut as an optional accessory. The brake cable for the overrun brake is led sideways, outside the drawbar.
Operation principle is the same as with the KHA drawbar type, but this type of drawbar lacks the overrun brake. It can be used to solve the height-adjustment for trailers with a load capacity of up to 6500 kg, where the brake control is already realised by a pneumatic brake system.