The present invention relates to a conveyor system (2) comprising a support frame (4) and an endless carrier chain (6) arranged horizontally thereon and defining an upper part (6a) and a lower part (6b); the carrier chain thereby having an inner side (12) and an outer side (14); wherein said support frame comprises a shielding element (24) in an area (A) defined between the inner side (12a) of the upper part of the carrier chain (6) and the inner side (12b) of the lower part of the carrier chain (6); wherein said shielding element (24) itself, or in combination with the first main support element (16) and/or the second main support element (18) having an extension that blocks a direct access between any point PI located on the inner side (12a) of the upper part of the carrier chain (6) and a corresponding point P2 located on the inner side (12b) of the lower part of the carrier chain.
