| 摘要 |
A tool is provided for perforating a clamping band or the like of the type which has a plurality of evenly spaced apertures for accommodating connection of the band with barb members on clamp locking apparatus. The perforating tool includes a pair of levers pivotally connected for movement about a common axis and including plier-like manually engageable handles protruding from the common pivot axis. At the opposite side of the common pivot axis from the handles, the levers pivotally support respective rigid perforating tool blocks. One of these perforating tool blocks carries a male perforating plunger and the other of these blocks includes an opening for linearly guiding the plunger, as well as a support for a band being perforated. In order to accommodate linear movement of the plunger and guide opening during pivotal movement of the handle levers, the perforating tool blocks are guided at respective guide pins extending through the respective levers. A spring-loaded band stop pin is provided for indexing the apertures in the band. This band stop pin is detachably mounted at the tool block holding the female die in such a manner as to accommodate changing of the tool from left to right-hand operation merely by changing the band stop pin support. To accommodate ready disassembly of the device and exchange of the perforating tool blocks, the same are connected to the levers by detachable pivot pins and the blocks are guided linearly at the levers along open slots in the blocks, so that, with removed pivot pins, the blocks can be removed and exchanged without requiring disassembly of the levers with respect to one another.
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