| 摘要 |
The purpose of the present invention is to simplify and make safer the use of vibrating tampers (1) powered by internal combustion engines and designed for compacting clay, sand or gravel, for example in pipe trenches. This is achieved by the use of a single control lever (4) which, by means of a snap-action device, can be set to any of three fixed positions with the following functions: Position 1 - Engine ignition circuit short-circuited, fuel cock closed, fuel tank vent cock closed, throttle fully closed. Position 2 - Engine ignition circuit open, fuel tank vent open, fuel cock open, throttle control in starting/idling position. Position 3 - Engine ignition circuit open, fuel tank vent open, fuel cock open, throttle control in full-throttle position. <IMAGE> |
