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1.发明授权Self-propelled upright vacuum cleaner having a remotely disposed transmission and a positive locking mechanism 失效具有远程设置的传动装置和一个正的锁定机构的自推进立式吸尘器
公开(公告)号：US4766640A
公开(公告)日：1988-08-30
申请号：US568
申请日：1986-12-31
CPC分类号： A47L9/2863 , A47L5/30 , A47L9/009 , A47L9/2852 , A47L9/325
摘要： A self-propelled, upright suction or vacuum cleaner includes a base unit and a handle assembly pivotally extending therefrom that can be pivoted from an upright position to a comfortable operating position. The handle assembly includes a handle grip at one end and a drive system housing at its other end containing a drive system including a cleaner motor for propelling the cleaner. The drive system includes a transmission for transferring power from the cleaner motor to a pair of drive wheels fixedly secured to a drive axle. The transmission is remotely disposed from the drive axle and is connected thereto by a drive belt. The transmission includes an actuator that is controlled by a cable extending from the handle grip. As long as the handle grip maintains the actuator in a neutral position, the drive wheels are not rotated. If the handle grip is pushed or pulled by an operator, the actuator is pivoted by the cable and the transmission causes the drive wheels to propel the cleaner in a forward direction or a reverse direction, respectively. In order to ensure that the cleaner is not propelled by the drive wheels when the handle assembly is in its upright position, a positive acting locking mechanism that includes an actuator rod pivotably connected to the base unit causes a locking lever to be pivoted into engagement with the actuator to maintain the actuator in its neutral position.
摘要翻译： 自推进的直立式吸尘器或真空吸尘器包括基座单元和从其枢轴地延伸的手柄组件，其可从直立位置枢转到舒适的操作位置。 手柄组件包括在一端的手柄把手和在其另一端的驱动系统壳体，其包含驱动系统，该驱动系统包括用于推动清洁器的清洁器马达。 驱动系统包括用于将动力从清洁器马达传递到固定地固定到驱动桥上的一对驱动轮的变速器。 传动装置远离驱动轴设置并通过传动带与其连接。 传动装置包括由从把手把手延伸的电缆控制的致动器。 只要手柄将致动器保持在中立位置，驱动轮就不会转动。 如果手柄被操作者推动或拉动，则致动器由电缆枢转，并且变速器使得驱动轮分别沿前进方向或相反方向推动清洁器。 为了确保当手柄组件处于其直立位置时，驱动轮不会驱动清洁器，包括可枢转地连接到基座单元的致动器杆的正向作用的锁定机构使锁定杆枢转成与 致动器将致动器保持在其中立位置。
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