| 摘要 |
<p>The tool (10) has a handle (11) comprising an opening (12) for receiving a control switch (20) that is movable upwardly and downwardly. A control rod (14) is articulated on the control switch to follow a pivotal path to press the control switch. A dust-proof cap (30) comprises an opening (31) for coupling on the control switch. The cap comprises a support portion (32) formed on circumference of the opening of the cap for pressing the handle and ensuring sealing of the handle opening.</p> |
