| 摘要 |
A powered unit for performing blower operations or vacuuming operations is provided. The powered unit includes a blower tube, a barrier for preventing unintentional contact with moving parts in the powered unit, and a retention feature. The retention feature is located within the blower tube and the retention feature is configured for securing the barrier within the blower tube. The retention feature is included of an annular groove in the blower tube. The barrier is secured in the blower tube by a snap engagement with the retention feature. The barrier can also be deformed as it is inserted into the blower tube. The barrier then returns to its non-deformed shape when the barrier is secured in the retention feature in the blower tube. |
