A conveyor apparatus, so-called injector head, to enable feeding of continuous elongate device ( 7; CED), e.g. continuous tubing or coiled tubing, down through the conveyor apparatus, to enable insertion of tools through the wellhead and a well below, or up through the conveyor apparatus by pulling action enabling retrieval of the tool from the wellhead and the well below, the conveyor apparatus comprising: an apparatus frame, a pair of oppositely located, co-operatively movable, segmented continuous belts ( 28; 29) installed in the frame, each belt comprising a plurality of interconnected device ( 7; CED) gripper shoe carriers carried and movable by means of a pair of continuous belt drive chains ( 31; 32) running over respective pairs of chain drive sprockets ( 33; 34), wherein a rear side ( 30") of the carrier has at least one roller configured to roll about a shaft attached to the carrier against an elongate counter-force member, a so-called skate, associated with the frame and extending between said drive sprockets ( 33; 34), wherein a device ( 7; CED) gripper shoe ( 38; 52) is co-operative with each carrier to positively engage the continuous elongate device ( 7; CED), and wherein a pair of said counter-force members being adapted to interact with a respective belt ( 28; 29), characterized in that the counter-force member has a) a elongate part, and b) along the length of the elongate part a plurality of pairs of substantially V shaped elements ( 37"), the elements of each pair extending with their V-legs ( 37"') laterally from oppositely located side edges of the elongate part towards an apex ( 37"") of the V - shaped element, that an axis of one leg ( 37"') of a V - element of one pair of elements, at one side edge of the elongate part, is aligned with an axis of a leg ( 37"') of a V - element of another and adjacent pair of elements, at the other side edge of the elongate part, and that the V- elements are integral with the elongate part and co-planar therewith. an apparatus frame, a pair of oppositely located, co-operatively movable, segmented continuous belts ( 28; 29) installed in the frame, each belt comprising a plurality of interconnected device ( 7; CED) gripper shoe carriers carried and movable by means of a pair of continuous belt drive chains ( 31; 32) running over respective pairs of chain drive sprockets ( 33; 34), wherein a rear side ( 30") of the carrier has at least one roller configured to roll about a shaft attached to the carrier against an elongate counter-force member, a so-called skate, associated with the frame and extending between said drive sprockets ( 33; 34), wherein a device ( 7; CED) gripper shoe ( 38; 52) is co-operative with each carrier to positively engage the continuous elongate device ( 7; CED), and wherein a pair of said counter-force members being adapted to interact with a respective belt ( 28; 29), characterized in that the counter-force member has a) a elongate part, and b) along the length of the elongate part a plurality of pairs of substantially V shaped elements ( 37"), the elements of each pair extending with their V-legs ( 37"') laterally from oppositely located side edges of the elongate part towards an apex ( 37"") of the V - shaped element, that an axis of one leg ( 37"') of a V - element of one pair of elements, at one side edge of the elongate part, is aligned with an axis of a leg ( 37"') of a V - element of another and adjacent pair of elements, at the other side edge of the elongate part, and that the V- elements are integral with the elongate part and co-planar therewith.