1. Cutterbar (1) having disposed on the main frame (2) the central portion (3) and at least two adjoining central portion (3) of the side portion (4) extending substantially perpendicularly to the main frame (2) a rear wall (15), a flexible passing by reaping unit width (1) the cutter bar (6) and at least one located behind the knife bar (6) conveying device (5) which is at the respective side portions (4) is satisfied in the form of at least one endless conveyor belt (7) which adjoins the p ntralnomu portion (3) and is intended for conveying the cut knife bar (6) of crop material to the side toward the central portion (3), wherein the side portions (4) comprise a plurality of brackets (16) which are mounted on the main frame (2) pivotally carry cutter bar (6), characterized in that the respective lateral portion (4) comprises a plurality of supporting a conveyor belt (7) the bearing members (17) mounted in the support (21) movable axially relative to the main frame (2) .2. Cutterbar (1) according to Claim. 1, characterized in that each bearing support member (17) is designed as a support (21) translational kinematic pary.3. Cutterbar (1) according to Claim. 1, characterized in that each carrier element (17) on its facing the cutter bar (6) end portion is provided with a stop surface (19) for a conveyor belt (7) .4. Cutterbar (1) according to Claim. 1, characterized in that on the end portions of the bearing members (17) facing the rear wall (15) disposed guide (24) for lenty.5. Cutterbar claim. 4, wherein1. Жатвенный аппарат (1), содержащий расположенный на основной раме (2) центральный участок (3) и, по меньшей мере, два примыкающих к центральному участку (3) боковых участка (4), проходящую по существу перпендикулярно основной раме (2) заднюю стенку (15), гибкий, проходящий по ширине жатвенного аппарата (1) ножевой брус (6) и, по меньшей мере, одно расположенное за ножевым брусом (6) транспортирующее устройство (5), которое на соответствующих боковых участках (4)