| 摘要 |
This invention is about the front wheel mounting structure of vacuum cleaner can cross the threshold smoothly by the rotation of wheel frame as well as the rotation of roller itself installed on the lower part of vacuum cleaner. In the front wheel mounting structure with the wheel frame(20) of vacuum cleaner(1), mounted on the lower part of body(100) in a elastic press fit to rotate in a 360-degree arc, connected to the upper part of the hinge shaft(24a)(24b) to support and rotate at the rear of long slot of the front wheel holder(10), and attached with revolving plural rollers(12a)(12b) to be revolvable, an elastic spring(30) is placed between the rear end part of wheel frame(20) and the rear wall surface(8c) of dented slot(7). The invention gives a good point to prevent the breakage of components by absorbing the impact given from the threshold when the vacuum cleaner crosses the threshold and an improved convenience for use.
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