| 摘要 |
In a wheel and brake device for a means of transportation with pivotal wheels (2) and with brake activating means (3) placed at each end and connected to a brake lever (4, 4') a particularly simple operation may be achieved. The device comprises only one pedal (3) at opposite ends. This is arranged only to be activated in one direction irrespective of a braking or a release operation is to be performed. The pedal (3) is via the brake levers (4, 4') connected to a swinglebar (5) which is also connected to a cam follower means (6). The cam follower means (6) runs along a cam track (7) defining two fixed resting positions for the cam follower means (6). In one of the resting positions, tabs on a brake block (12) will engage with the teeth (14) firmly connected to the wheels. Thus, a simple but safe braking of the wheels is achieved. |
