Sheet Conveyer Cover with Rib Holding Ornamental Sheets
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Solution Overview
Problem
The existing sheet conveyer devices in image processing apparatuses, such as printers and facsimile machines, face challenges in securely holding ornamental sheets underneath clear resin covers, leading to slippage and cumbersome replacement processes, which restrict the size of the ornamental sheet and require repeated screwing and unscrewing.
Innovation Solution
A sheet conveyer device with a cover member featuring an engaging piece and sheet holding rib, allowing for easy attachment and detachment of ornamental sheets without screws, ensuring they are held securely in place and can be replaced without complex procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If screws are used to fix the clear resin sheet to the casing, then the resin sheet can be securely attached, but the ornamental sheet slips on the casing and cannot be held in the desired position
Solution Approach 1:
The cover member is divided into multiple functional components: an engaging piece for attachment to the casing, a sheet holding rib for positioning the ornamental sheet, and a clearance space for inserting the sheet. This segmentation allows each component to perform its specific function independently, resolving the conflict between secure attachment and precise positioning.
Solution Approach 2:
The sheet holding rib acts as an intermediary element between the casing and the ornamental sheet. It provides a physical barrier that prevents the sheet from slipping while allowing easy insertion and removal, thus maintaining both attachment strength and positioning accuracy.
2Strength
If screws are used at the four corners of the clear resin sheet, then the resin sheet can be securely fixed, but the ornamental sheet size must be smaller than the resin sheet to avoid interference with the screws
Solution Approach 1:
The screw fastening mechanism is completely removed from the system. Instead, the engaging piece provides secure attachment through a different mechanism that does not require corner-mounted screws, thereby eliminating the constraint on ornamental sheet size and allowing it to cover the entire resin sheet area.
3Strength
If screws are used to attach the clear resin sheet, then secure fixation is achieved, but replacement of the ornamental sheet becomes cumbersome requiring removal and reattachment of screws
Solution Approach 1:
The attachment system is designed to be dynamically changeable - the engaging piece allows for easy engagement and disengagement of the cover member, enabling quick replacement of the ornamental sheet without requiring tools or complex procedures, while maintaining secure attachment during use.
4Area of stationary object
If the ornamental sheet is placed to cover the entire casing area, then maximum decorative effect is achieved, but the screws interfere with the ornamental sheet or damage it
Solution Approach 1:
The screw fastening system is removed entirely and replaced with the engaging piece mechanism. This eliminates the harmful effect of screws potentially damaging the ornamental sheet or interfering with its full-area coverage, allowing maximum decorative effect without risk of damage.
Data Source
AI summary
A sheet conveyer device, including a main housing and a cover member, is provided. The cover member has a plane section made of a transparent material and is attachable to the main housing with a predetermined facing surface of the plane section set to face a predetermined plane of the main housing. An ornamental sheet can be detachably attached to the sheet conveyer device in a position between the predetermined plane and the cover member. The cover member includes an engaging piece, which is formed on a same side as the predetermined facing surface of the plane section and is engageable with an engageable section in the main housing. The engaging piece has a sheet holding rib and a clearance in between the predetermined facing surface and the sheet holding rib and holds a lateral end of the ornamental sheet in the clearance.