| 摘要 |
We have designed a machine for office use called the Electric Paper Reinforcer/Hole Puncher (EPRHP) to protect papers stored in three ring binders. EPRHP is an electric powered device that can automatically apply a clear, ultra thin layer of plastic film on the edge of printed documents to reinforce them, and then punch 3 holes within the plastic film area on these documents. As a result, these 3 holes will be reinforced and prevent the documents from being torn by the rings of the binder. EPRHP can be further used to reinforce large sized printed documents, such as 36x24 drawings, by applying the plastic film on the edge of drawings. The EPRHP is a portable machine and can be placed on an office desk. EPRHP can turn a document printed on a piece of regular bond paper into a durable document, without deforming the paper appearance or creating any winkles on the paper, all while leaving the main body of the page free to be marked up or otherwise modified.
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