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    • 7. 发明授权
    • Wringer-type sponge mop and sponge clamp therefor
    • 绞纱式海绵拖把和海绵夹
    • US5331706A
    • 1994-07-26
    • US66566
    • 1993-05-26
    • John W. Graham
    • John W. Graham
    • A47L13/24
    • A47L13/24
    • A cleaning sponge connection for a wringer type sponge mop is disclosed. A latch hook at a lower end of an operating rod has a free end portion of a predetermined length and a non-circular cross-sectional shape. An elongate sponge clamp includes an elongate upper wall and a pair of opposing side walls which retain a sponge. The sponge clamp has at least one arch integrally formed in the elongate upper wall thereby defining a latch passageway extending longitudinally along the elongate upper wall. The latch passageway receives the free end portion of the latch hook to removably secure the sponge clamp to the operating rod. The latch passageway has a non-circular cross-sectional opening corresponding to the non-circular cross-sectional shape of the free end portion of the latch hook for preventing rotational movement of the sponge clamp about the latch hook. In addition, the upper wall of the sponge clamp has a recess that is at least as long as the predetermined length of the free end portion of the latch hook extending longitudinally along the upper wall of the sponge clamp to define a guide channel for receiving the latch hook. The guide channel is aligned with and adjacent to the latch passageway for guiding the free end portion of the latch hook into the latch passageway. The guide channel preferably extends the full length of the sponge clamp.
    • 公开了一种用于绞拧式海绵拖把的清洁海绵连接。 在操作杆的下端处的锁钩具有预定长度和非圆形横截面形状的自由端部分。 细长的海绵夹具包括细长的上壁和保持海绵的一对相对的侧壁。 海绵夹具具有至少一个拱形件,整体地形成在细长的上壁中,从而限定沿着细长的上壁纵向延伸的闩锁通道。 闩锁通道接收闩锁钩的自由端部,以可拆卸地将海绵夹具固定到操作杆上。 闩锁通道具有对应于闩锁钩的自由端部的非圆形横截面形状的非圆形横截面开口,用于防止海绵夹具围绕闩锁钩的旋转运动。 此外,海绵夹具的上壁具有至少与钩形钩的自由端部的预定长度沿着海绵夹具的上壁纵向延伸的凹部,以限定用于接收 锁钩。 引导通道与闩锁通道对准并相邻,用于将闩锁钩的自由端部分引导到闩锁通道中。 引导通道优选地延伸海绵夹具的全长。