| 摘要 |
<p>PURPOSE:To make no need of a work to cut a dust removing material from a core at the time of exchanging an already used dust removing material as a whole roll by extending a wrapping part to one end part of the dust removing material and coiling one end of the wrapping part on the coiling core in the supply side in the way it can be detached. CONSTITUTION:A wrapping part F21 which can wrap a coiled and already used dust removing material F2 is unitedly extended to one end part of the dust removing material F2. When a prescribed tensile force is applied to the wrapping part F21, the wrapping part F21 is parted along the perforated line F12 and separated from the coiling core F1 in the supply side. As a result, during the maintenance work of the dust removing material F2, the collected dust is prevented from being scattered or adhering to a worker, a device, etc.</p> |
