the invention the rail body portion along the horizontal driving diagnosis table that the stop position after a certain time to generate as to reduce the noise, as the patient or animal with the X-ray imaging for medical diagnostic device having a brake device to ensure that no noise-free power or not surprised by the noise at the time of stopping, for achieving the object as described above, Diagnostic medical equipment is provided with a brake device according to the invention, no noise-free power and the main body portion is provided at the upper rail surface, is located on top of the body portion, slidably coupled to the examination table is provided with the main body portion along the rail and, wherein the brake plate is installed on the upper side in one side of the rail body portion, said body portion is connected to the top side and the hinge pivot, one end being provided with a first gear rack coupled to the brake plate in the diagnosis at the other end a second rack gear is provided as the brake links to the table, is located in the lower body portion, and the footrest portion for a hinge rotation by the pressing of the pedal has a pedal, one end connected to the bar, the brake link and the other end is the foothold Since standing comprises a brake wire is connected to the unit, it is possible to eliminate the noise or jolts occurring during locking and release in a conventional electric or automatic brake device, noise at the time of the patient or animal with the X-ray stop or may be configured to not surprised by the energy consumption by simplification of the structure can be provided by reducing purchasing costs and maintenance costs are a medical diagnostic device having a non-braking device which can reduce power noise-free.본 발명은 본체부의 레일을 따라 진단테이블을 수평구동 시킨 후 일정위치에 정지시킬 때에 발생하는 소음을 줄임으로서, X선 촬영시 환자나 동물이 정지시의 소음에 의해 놀라거나 하지 않도록 하는 무전력 무소음 브레이크장치를 구비한 의료용 진단기기에 관한 것으로서, 상기한 바와 같은 목적을 달성하기 위한 본 발명에 의한 무전력 무소음 브레이크장치를 구비한 의료용 진단기기는, 상부면에 레일이 마련된 본체부와, 상