| 摘要 |
The swivel housing with the spring-mounted wheel (5) overcomes the problem of unstable positioning of a vacuum cleaner (3), said instability being overcome by the spring- damped vertical movement of the axle (31) and of the wheel (25) toward the body of the vacuum cleaner (3) caused by the load of the vacuum cleaner (3) acting on the swivel housing with the spring-mounted wheel (5), the purpose of which is to transfer the weight of the vacuum cleaner (3) to the underlying surface (11). With the vertical movement of the axle (31) and the wheel (25), the transfer of the weight of the vacuum cleaner (3) to the underlying surface (11) is accomplished via another device, mounted on the vacuum cleaner (3), namely via the swivel housing with the spring-mounted wheel (5), thereby ensuring stable positioning of the vacuum cleaner (3) on the underlying surface (11). |
