Sheet Guide Member for Curved Transport Path Noise Reduction
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Solution Overview
Problem
In sheet transporting devices with curved transport paths downstream of merging sections, trailing ends of sheets experience significant jumping and striking sounds due to flexing forces, leading to unpleasant noise, especially when stiff sheets are transported.
Innovation Solution
The introduction of sheet guide members that extend into the merging section towards the curved transport path, positioned centrally, without contacting other guides, to reduce the jumping force and prevent sheet striking by guiding the trailing end smoothly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a curved transport path is provided downstream from the merging section, then the sheet can be transported efficiently, but the trailing end portion of the sheet jumps up and strikes the transport guide causing striking sounds
Solution Approach 1:
A sheet guide member is introduced as an intermediary component between the transport paths and the curved transport path. This sheet guide member extends into the merging section from the curved transport path side, acting as a mediator to control and guide the trailing end portion of the sheet, preventing it from jumping up and striking the transport guide, thereby eliminating the striking sound while maintaining efficient sheet transport
2Volume of moving object
If the sheet is transported through the curved transport path, then the transport path can be compact, but the flexing force of the sheet causes the trailing end to jump up forcefully
Solution Approach 1:
The sheet guide member serves as a mediator that interacts with the trailing end portion of the sheet before it enters the curved transport path. By extending into the merging section, it provides a guiding surface that controls the sheet's movement, reducing the impact of flexing force and preventing the trailing end from jumping up forcefully, thus maintaining compact transport path design while managing the flexing force
3Object-generated harmful factors
If the trailing end portion of the sheet is guided tightly, then the striking sound is reduced, but the sheet may be constrained excessively causing transport issues
Solution Approach 1:
The sheet guide member is designed with specific local characteristics: it extends into the merging section from the curved transport path side, providing localized guidance only where needed (at the trailing end portion). This local quality allows it to control the sheet's movement at the critical point without excessively constraining the entire sheet, maintaining transport smoothness while reducing striking sound
Data Source
AI summary
A sheet transporting device in which a curved transport path is provided downstream in a sheet transport direction from a merging section where a plurality of transport paths, which are formed by transport guides for transporting sheets, merge, is provided. The sheet transporting device includes a sheet guide member that extends towards the curved transport path from the merging section, with an extending end portion of the sheet guide member being disposed so as not to contact the transport guides. The sheet guide member reduces jumping up of a trailing end portion of a sheet caused by flexing of the sheet passing through the merging section towards the curved transport path.