| 摘要 |
Abstract The present invention relates to a driver apparatus (10) of the type used to locate a ground fixing, such as a pin, for a post of a movable race track running rail or the like. The driver apparatus (10) includes an upright (16), a movable arm (20) arranged for connection to the upright (16) and a tool balancer (300). The tool balancer (300) is arranged in use for connection between the movable arm (20) and a driver (100). The driver (100) is preferably a pneumatic hammer. |
