Constructive arrangement introduced in machine header tensioner and agricultural implements in general. lateral support (1) of the lateral tensioner (2) and central support (3) of the central tensioner, connecting the chassis (c) and the header (c), said support consisting of the lower part (1a) and upper part (1b), joined together, interspersing the chassis, having, in the anterior parts of said lower and upper parts of the lateral support, vertical eyes (1c), and having, installed between them, the vertical eyes (1d) of the front member (1e) of the side support, and between which tubular segment (1f) is installed, the pivotal union of the vertical eyes of said lower and upper parts and said front element of the lateral support made through said tubular segment, being further provided in said front element are horizontal eyes (1g) in which a pin (h) is retained by an elastic pin (1i) through which the lateral tensioner (2) is connected by means of the vertical eye (2a). ), disposed at one end and having at its end the opposite This is the vertical eye (2b), which is installed with the aid of a pin (2c) retained by an elastic pin (2d) between horizontal eyes (2e) of the support plate (2f) attached to the header, and brackets are also provided. (3) which, interleaving the chassis, are fixed, with the aid of clamps (3a), to the rear of the central support, vertical look (3b), which is fixed by a pin (3c) retained by elastic pin (3d), vertical eye of the rear part (3e) of the central tensioner (3f), which is further provided with an anterior vertical eye (3g), which is installed by means of pin (3h) retained by elastic pin ( 3i) between vertical eyes 3j of the rear support plate 3k which is interleaved fixed to the front support plate 3l of the central support.disposição construtiva introduzida em tensor de cabeçalho de máquinad e implementos agrícolas em geral. constituído por suporte lateral (1) do tensor lateral (2) e por suporte central (3) do tensor central, de li
