| 摘要 |
This invention consists of a drill tool carriage for use when penetrating, for example, concrete walls by means of an electrically powered drilling tool 1. The carriage 2 which travels on the floor is designed to carry the drilling tool 1 at a certain distance above the floor and is equipped with a steering and control rod 9 by means of which the carriage 2 can be manoeuvred on the floor by an operator standing on the floor so that the drill 6 tip is pressed against the wall. Between the steering and manoeuvring rod 9 and the drilling tool's 1 start/stop mechanism 3 there is a unit that functions so that the drilling tool 1 starts when the steering and manoeuvring rod 9 is moved to a certain position. The characterizing feature of the invention is that between said unit and the drill tool's 1 start/stop mechanism 3 there is another movable device 11 in the carriage body, with the purpose of preventing wear and uneven load on the start/stop mechanism 3. <IMAGE> |
