| 摘要 |
This device is actuated by a single control (1) that by ropes (2 and 3) and in a simultaneous manner acts on the rear wheels (4) of the pram. The control (1) has a lever (5) at its end (6) being linked to a bracket (7) in a pin-jointed connection and at an intermediary point (9) being inferiorly linked in a pin-jointed connection to an arm (10) being at its free end (11) linked to the ropes (2 and 3). The ropes are inferiorly linked to the brake ans (12) being operable for braking the wheels (4), the ropes being biased by respective springs (13) provided for securing the brake-on position. The control lever (5) in its raised brake-off position is stabilized in a position beyond vertical where it is maintained by the pulling force of the springs (13).
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