| 摘要 |
A sheet folding device includes a platform and a pair of guides disposed along opposite sides of the platform. The platform has a multi-stepped profile in a lengthwise direction so as to define a lower shoulder and an upper shoulder disposed above and displaced in the lengthwise direction of the platform from the lower shoulder. The guides are provided for guiding placement of a sheet on the platform such that the sheet can be folded by (i) placing one edge of the sheet against one of the lower and upper shoulders, (ii) curling an opposite edge of the sheet and placing the opposite edge against the other of the lower and upper shoulders, and (iii) pressing the sheet downward onto itself on the platform so as to fold the sheet.
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