The present invention relates to a built-in brake device of the inline skates.;In the conventional inline skate, a brake device that is used to reduce the propulsion speed or stops the protruding shape is provided at the rear lower end of the rear wheel of the skate body. If it was pushed, there was a closure that caused a safety accident that one side of the skate body tripped over the brake device mounted on the rear side of the other side.;The present invention is devised to solve the above problems, and the subject matter of the present invention is to fasten the brake plate (4) to the frame rear side of the rear wheel (2c) of the inline skates, so that the load of the rear wheel (2c) to the brake plate (4) When it is applied, the rear wheel shaft 3c moves to the guide slot 5 to be brought into contact with the brake plate 4 and braked. When the load of the rear wheel 2c is released, the rear wheel shaft 3c is restrained by the restoring elasticity of the spring 6. ) Is to return to the original along the guide hole (5) to enable the brake to be released.;And the strength of the spring (6) is to be adjusted by the adjustment bolt (7a) fitted in the adjustment hole (7).
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