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Application filed by Петър ГосподиновfiledCriticalПетър Господинов
Priority to BG101467ApriorityCriticalpatent/BG101467A/en
Publication of BG101467ApublicationCriticalpatent/BG101467A/en
The staircase is used in sports halls and gyms, fitnesscentres, etc. It is a steel structure (1) on which rollers (2)with sprocket wheels (3) are mounted, and steps of rounded section(5) are fixed to a chain (4). To one of the sprocket wheels abraking mechanism (6) is attached for adjusting the resistance ofthe staircase depending on the weight of the sportsman/woman. Thesteel structure (1) together with the chain guard (7) is connectedto a supporting stand (9) by means of a pivot (8). A mechanism foradjusting the inclination (10) is ftted in the place of the pivot.1 claim, 1 figure
Cycle crankset with extendable cranks allowing the offset from the center of the pedal rotation circle in front of the axis of the chain drive chain (s).