| 摘要 |
<p>The invention relates to a power tool (1) which in the embodiment is portable, self-contained and which has a push button switch (3), and power means in the form of ten 1.2 volt rechargeable batteries (12), rechargeable v^_i^_a^_ a recharging socket (4). A motor (5) drives a gearbox (6) which turns a chuck (7). The chuck is attached to a spindle and the chuck can be removed from the spindle such that a screwdriver means can be inserted directly into the spindle as opposed to the screwdriver means being gripped by the chuck (7). The push button switch (3) is adapted to move within a slot (34). When the push button switch (3) is in the centre of the slot (34), as shown, no power can be applied to the motor (5) by depressing the push button switch (3). However, when the push button switch (3) is in its top position within the slot (34) the motor (5) turns in a clockwise direction. Alternatively, when the push button switch (3) is in the down position within the slot (34) the motor (5) will turn in an anticlockwise direction. Referring to Fig. 2 the self contained power tool (1) is shown inserted in means such as attachment means (2) for receiving the tool (1) as by sliding from right to left as viewed in Fig. 2.</p> |
