Feed device for piston type bailer

Abstract

A piston type bailer for producing bales of agricultural material comprising a bailing chamber with a reciprocating pressing piston, a crank drive for reciprocating the pressing piston. A feeding element is arranged to feed agricultural material to the bailing chamber. As auxiliary drive changes a position of the feeding element from the crank drive. The auxiliary drive having a first crank unit associated with the feeding element and including a first crank pin rotatably supporting the feeding element, a crank axle and a first crank arm arranged on the crank axle, and a second crank unit associated with the crank drive of the pressing piston and includes a second crank arm driven from the pivot axle of the crank drive and a pivot pin driven by the crank arm. The auxiliary drive also has a turning lever also arranged on and rotatable on the crank axle of the first crank unit and having an end which is spaced from the crank axle and provided with a rod connected with the opposite end of the feeding element to form support of the feeding element at the opposite end, and a link which is connected with the turning lever through a further intermediate link member and supported on the second crank pin which is driven through the second crank arm of the second crank unit from pivot axle of the crank drive of the pressing piston.