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    • 7. 发明授权
    • Feed control device for plumbing tools
    • 管道工具进料控制装置
    • US5901401A
    • 1999-05-11
    • US901653
    • 1997-07-28
    • Michael J. RutkowskiJon R. Dunkin
    • Michael J. RutkowskiJon R. Dunkin
    • B08B9/049B08B9/04E03F9/00F16C1/00B08B1/00
    • E03F9/005B08B9/045
    • A feed control device particularly suited for mounting on a hand held, power driven drain cleaning apparatus having an elongate rotatable snake comprises a tubular housing having a transverse wall therein provided with a passage for the snake, a pair of driving rolls mounted on the wall for rotation about axes skewed relative to the housing axis and a drive actuating roll mounted on the housing for radial displacement to engage the rotating snake against the driving rolls. The actuating drive roll provides the inner end of an actuating drive unit having an outer end engaged by a pivotal lever on the housing for displacing the actuating drive roll against the snake. The actuating drive unit is adjustable in length between the inner and outer ends thereof and is removably supported on the housing, and the lever and outer end of the drive actuating unit interengage for the member to retain the parts of the actuating drive unit in an adjusted position and to releasably hold the drive actuating unit on the housing.
    • 特别适用于安装在具有细长可旋转蛇的手持式排水清洁装置上的进给控制装置包括:管状壳体,其中具有横向壁,其中设有蛇形通道,安装在壁上的一对驱动辊 围绕轴线相对于壳体轴线倾斜的旋转以及安装在壳体上用于径向位移的驱动致动辊将旋转的蛇接合在驱动辊上。 致动驱动辊提供致动驱动单元的内端,其具有通过壳体上的枢转杆接合的外端,用于将致动驱动辊移动抵靠蛇。 致动驱动单元在其内端和外端之间的长度可调,并且可移除地支撑在壳体上,并且驱动致动单元的杠杆和外端与构件相互接合以将致动驱动单元的部件保持在调节 并且可释放地将驱动致动单元保持在壳体上。