Fish stunning apparatus, trigger unit and method for initiating the stunning means of the fish stunning device

摘要

A fish stunning apparatus comprises a fish feed-in device, a fish receiving space, which is loadable with fish in the head first position, a fish positioning means, which engages on the fish head and, for the purpose of stunning the fish, defines a releasable temporary stop position of the fish, said apparatus also comprises a stunning means for acting on the fish head, a trigger device for determining the stop position and for activating the stunning means, and further comprises a control device for controlling operation.;Locations on the fish head which come to rest in the fish receiving space, depending on the size of the head and/or body of the fish, should be positioned optimally for the purpose of stunning. A fish position actuating element can be controlled by means of a fish-size determining device and is connected to a positioning element of the fish positioning means for local adjustment, as a result of which any fish head can be moved automatically, according to the size of the fish, into a consistent position in relation to the stunning means. A trigger unit, which can be installed in the fish stunning apparatus, comprises the fish position actuating element with a trigger abutment element, formed by the positioning element, and also comprises a controllable control actuator for actuating the fish position actuating element.;According to a method for activating the stunning means, a fish-size-related control value, which represents the size of any fish, is determined and the positioning element is put automatically, according to the size of the fish, into an associated starting position.