Sheet Post-Processing Apparatus Vertical Folding Mechanism
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Solution Overview
Problem
Conventional sheet post-processing apparatuses are limited in handling sheet sizes larger than A4 size for folding and binding, as they require increased apparatus size to accommodate larger sheets, contradicting user requirements for compactness.
Innovation Solution
The apparatus incorporates a conveying section, storage section, binding section, and folding roller pairs arranged to allow for larger sheet sizes to be folded without increasing the apparatus size, with the receiving section positioned above the folding rollers and needle storage section to enable efficient handling of sheets up to B4 or A3 sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the sheet size is increased to accommodate larger sheets (B4, A3), then the folding processing capability is improved, but the apparatus size increases
Solution Approach 1:
The patent applies dimensional reconfiguration by arranging the receiving section above the folding rollers in the vertical direction, and positioning the storage section and needle storage section to utilize vertical space. This three-dimensional spatial arrangement allows the apparatus to handle larger sheet sizes without increasing the horizontal footprint, effectively resolving the contradiction between folding capability and apparatus size.
Solution Approach 2:
The needle storage section is positioned within the space defined by the storage section and receiving section, utilizing the vertical gap between them. This nested arrangement allows the needle storage section to be integrated into the existing structure without requiring additional horizontal space, enabling the apparatus to maintain compact dimensions while accommodating larger sheets for folding and binding operations.
2Area of stationary object
If the apparatus is compacted to maintain small size, then the apparatus size is reduced, but the ability to handle larger sheet sizes is limited
Solution Approach 1:
The patent utilizes the vertical dimension to accommodate larger sheet processing capabilities. By arranging the receiving section above the folding rollers and positioning the storage section to extend vertically, the apparatus can handle B4 and A3 sized sheets without increasing horizontal dimensions, thus maintaining compactness while improving sheet size adaptability.
Solution Approach 2:
The apparatus incorporates movable and adjustable components including the conveyable receiving section and repositionable folding rollers. These dynamic elements allow the apparatus to adapt its internal configuration to accommodate different sheet sizes, enabling compact design while maintaining versatility in handling various sheet dimensions.
Data Source
AI summary
The present invention is to enable folding processing to be applied to also large sheet sizes without upsizing the entire apparatus, in the sheet post-processing apparatus for performing the folding processing and binding processing on sheets, a sheet post-processing apparatus is provided with a binding processing section for performing binding processing using a binding needle on a sheet bunch inside a storage section, first folding roller pair for nipping a sheet P inside the storage section in a first position to form a first fold portion, a receiving section for receiving the sheet with the first fold portion formed fed out of the first folding roller pair, and second folding roller pair for nipping the sheet inside the receiving section in a second position to form a second fold portion.