| 摘要 |
<p>The device for axially feeding a drain cleaning snake relative to a storage drum (76) therefor comprises axially spaced apart support members (12, 14) having openings (24, 26) therethrough for receiving the snake and a plurality of snake driving roll units (30) spaced apart about the axis (A) of the openings (24, 26) and having opposite ends (38, 40) interconnected with the support members (12, 14) for the support members (12, 14) to be pivotal relative to one another about the axis of the openings so as to displace the driving roll units (30) between neutral and activating positions in which the roll axes (36) are respectively parallel to and skewed relative to the openings (24, 26) and in which the driving roll units (30) respectively disengage and drivingly engage the snake. The support members (12, 14) are spring biased to the neutral position of the driving roll units (30). <IMAGE></p> |
