Sheet Conveyance Guide with Pivotable Jam-Access Structure
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Solution Overview
Problem
Existing sheet conveyance apparatuses with upper-and-lower conveyance units require a large space for jam treatment due to the need to draw out conveyance units fully, complicating maintenance and reducing workability.
Innovation Solution
A sheet conveyance apparatus with parallel upper-and-lower conveyance paths, where the lower unit can be drawn out horizontally and its upper guide is pivotable to avoid interference, allowing for reduced space requirements and improved maintenance access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the conveyance unit is drawn out fully to treat sheet jamming, then the sheet jamming can be treated smoothly, but a large space must be left in front of the relay conveyance apparatus
Solution Approach 1:
The conveyance guide is designed to be movable rather than fixed. The movable guide part can be shifted between a first position (for normal operation) and a second position (for jam treatment), allowing the system to adapt its configuration dynamically based on operational needs
Solution Approach 2:
Instead of moving the entire conveyance unit horizontally (one dimension), the movable guide part is shifted in a different dimension (perpendicular to the sheet conveyance direction), allowing jam treatment without requiring large horizontal space
2Ease of operation
If the conveyance unit is drawn out fully to treat sheet jamming, then the sheet jamming can be treated smoothly, but the user has to move to a position where he does not interfere with the drawing of the conveyance unit
Solution Approach 1:
The movable guide part provides dynamic adjustment capability, allowing the system to accommodate jam treatment operations without requiring users to relocate, thereby simplifying the operational procedure
3Device complexity
If the upper conveyance guide is fixed, then the structure is simple, but it interferes with the opening and closing of the conveyance guide during sheet jamming treatment
Solution Approach 1:
The conveyance guide is designed with a movable guide part that can be shifted between different positions. During normal operation, it functions as a fixed guide, but during jam treatment, it can be moved to avoid interference with opening and closing operations
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Facilitates easy removal of jammed sheets without needing extensive space, enhancing maintenance efficiency and reducing user movement during jam treatment.
Implementation Method 1
a movable guide part (75c) which is coupled to the turning end (75b1) via a hinge part (75d) in a turnable manner
Data Source
AI summary
A sheet conveyance apparatus (26) includes: a first conveyance unit (70a), a second conveyance unit (70b) disposed below the first conveyance unit (70a) and including a second upper conveyance guide (75) and a second lower conveyance guide (77), and an apparatus main body, wherein the second conveyance unit (70b) can be drawn out to a front side of the apparatus main body along a front-and-rear direction perpendicular to a sheet conveyance direction, the second upper conveyance guide (75) includes: a guide main body part (75b) turnable upward and downward with respect to the apparatus main body with a rear end edge as a turning support shaft and a front end edge as a turning end; and a movable guide part (75c) coupled to the turning end of the guide main body part (75b) via a hinge part (75d) in a turnable manner.