The present invention discloses a main chassis reinforcement structure of a tape recorder.;The present invention has two side panels in which a pair of support pieces are formed on the upper and lower sides of one side, and two supporters are formed apart in front of the upper surface, and the fitting space is formed to be divided up and down by the ribs in front of the supporter. A main chassis in which a coupling hole is formed at one side of the front side of the supporter to form a substantially horizontal line with the rib; It is mounted to reinforce strength by connecting the side panel of the main chassis and the front of the supporter, and the first and second support pieces are formed in the horizontal direction so as to be supported by the support pieces of the side panel on one side of the back, respectively, and the supporter is fitted on the other side of the back. The third and fourth support pieces are respectively formed in the vertical direction to be inserted into and supported in the space, and are composed of reinforcing plates in which coupling pins are formed so as to correspond to each other in the coupling holes of the supporter.;Therefore, since the side panel and the supporter of the main chassis are configured to be reinforced by the connection of the reinforcing plate, not only the bending deformation of the main chassis is prevented, but also the breakage and appearance defects are effectively prevented while the front bracket is prevented from moving and escaping. The reliability of the product is remarkably improved. In addition, the assembly position is firmly maintained while the flow and detachment of the knob is prevented, thereby significantly improving the reliability of the product.
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