Patent ID: 7766156

Claim:
An abutment module for automatic processing and conveying equipment, comprising: an abutment member ( 16 ) arranged on a base ( 26 ) having a bottom part ( 48 ) and a top part, for objects moving in a movement plane in a current direction of working motion, the abutment member being movable in and out of a plane of movement by electrical operation of an electrical rotary drive in the form of a lead screw drive, wherein the lead screw drive comprises a motor ( 17 ), a lead screw ( 46 ) coupled and coaxial with the motor ( 17 ) and a lead screw nut ( 48 ) cooperating with the lead screw ( 46 ), the lead screw nut ( 48 ) comprising a cylindrical sleeve section ( 52 ) which coaxially surrounds the motor ( 17 ) like a tube, wherein said cylindrical sleeve section ( 52 ) comprises a tubular outer face on which a cylindrical recess ( 53 ) is provided, the sleeve section ( 52 ) of the lead screw nut ( 48 ) also comprising un-recessed end portion forming a shoulder, wherein said lead screw nut ( 48 ) constitutes a bottom part of the base ( 26 ), wherein said motor ( 17 ) produces a rotational output drive movement and rotationally drives said lead screw ( 46 ), wherein the rotational output drive movement is converted by the lead screw ( 46 ) and the lead screw nut ( 48 ) as conversion means to a linear movement which is directed in or out of the plane of motion of the abutment member ( 16 ), wherein the abutment module comprises stroke promoting means for the lead screw drive in the form of at least one spring ( 47 ) , and wherein said spring ( 47 ) is integrated in the cylindrical recess of the sleeve section ( 52 ) and bears stationarily on the base ( 26 ) and also bears on the shoulder of the un-recessed end portion of the sleeve section ( 52 ).