| 摘要 |
This invention relates to apparatus for dispensing wrapping material such as cling film from a roll (37) of such material. The material to be dispensed is guided along a path defined by two rollers (35 and 47) between which is arranged a toothed perforating blade (49). The blade is pivotally mounted and biased into a position in which the teeth just protrude into said path and engage the material (48) to be dispensed. When the material is moved along the path, it rotates the perforating blade into a position in which the teeth protrude further into the path, thus perforating the material. Continued movement of the material causes continued rotation of the blade until the teeth are withdrawn from the path (49b). The apparatus also includes a severing device (44) to enable sheets of material to be removed at the perforations. |
