| 摘要 |
The invention relates to a stop member or dog (7) for a screwdriver hand tool (1) with a motor driven screwdriver (2). Known screwdriver hand tools have a number of disadvantages, like the difficulty to aim the tip of the screwdriver since the stop member is blocking the view, the difficulty to change between screwdrivers or so-called bits, which requires a temporary removal of the stop member, the difficulty to reach to screw in narrow spaces where there is not enough space for the stop member, and above all the difficulty to unscrew a screw that has got askew, since the automatic clutch in the screwdriver hand tool cannot be made to engage the drive of the screwdriver hand tool unless the screwdriver is pushed in a bit further than what is possible with a screw that has been screwed in all the way. With other words the stop member must be removed. These inconveniences are eliminated with the device according to the invention by means of the stop member (7), that has a ring-shaped holder (6), which is provided with threads (5') and is designed with a forwardly pointing finger (7), that is positioned parallel to the screwdriver (2) at a small distance from this with a tip located in desired position relatively to the tip of the screwdriver. |
