Sheet Conveying Coupling Unit With Swinging Engagement
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Solution Overview
Problem
The mounting and dismounting of units in sheet conveying apparatuses, such as image forming apparatuses, is cumbersome due to complicated manipulations required for coupling and decoupling between units.
Innovation Solution
A sheet conveying apparatus with a coupling unit featuring a pivoted one-end portion and a swingable other-end portion, allowing units to be mounted and coupled by swinging the other-end portion upward and then downward, facilitated by a shaft rotatably arranged and supported by a shaft holder with a fitting hole and a shaft fitting plate, enabling easy coupling and decoupling through simple rotational maneuvers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If units are coupled together using complicated manipulation mechanisms, then the coupling strength and stability are improved, but the ease of mounting and dismounting deteriorates
Solution Approach 1:
The coupling mechanism employs a dynamic swinging motion of the coupling unit between an upper position (for mounting) and a lower position (for coupling). This dynamic transformation allows the system to switch between easy mounting mode and stable coupled mode, resolving the contradiction between operational ease and coupling reliability
Solution Approach 2:
The coupling mechanism is divided into separate functional components: the coupling unit with swinging motion for mounting, and the engagement portion with retention force for stable coupling. This segmentation allows each component to optimize its function independently - the coupling unit for ease of operation and the engagement portion for reliability
2Ease of operation
If the coupling mechanism is simplified for easy mounting, then the ease of operation is improved, but the coupling strength and stability deteriorate
Solution Approach 1:
The coupling unit utilizes gravitational force and simple swinging motion to achieve easy mounting and dismounting operations. The dynamic nature of the coupling allows rapid engagement and disengagement without complex mechanisms, while the engagement portion ensures stable connection through its retention design
Solution Approach 2:
The coupling mechanism is designed to be self-aligning and self-engaging through the swinging motion. The coupling unit automatically finds the correct position and engages with the engagement portion without requiring complex alignment procedures or additional fastening operations, simplifying the mounting process while maintaining stability
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 the mounting and dismounting of units by simplifying the process, reducing the need for complex manipulations, and enhancing the convenience of handling units within the apparatus body.
Implementation Method 1
a shaft holder (13) supporting an end part of the shaft (11) along the axial direction
Implementation Method 2
the coupling unit (UC) conveying the sheet from the first unit (2) to the second unit (1)
Data Source
AI summary
The coupling unit (UC) includes a shaft, a shaft holder and a shaft fitting plate. The shaft holder includes a first coupling portion, and a first unit includes a second coupling portion. When the first unit is mounted in an apparatus body and coupled to a second unit, first, with an other-end portion (UC2) swung upward, the first unit is mounted in the apparatus body and then, with the other-end portion (UC2) swung downward, the first coupling portion is coupled to the second coupling portion.