Card Insertion Device with Oblique Sheet Cuts
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Solution Overview
Problem
Existing methods for attaching flexible cards to sheets, such as business cards to documents, either damage the card or require tedious manual insertion through oblique cuts made by die-cutting machines, which is inefficient and laborious.
Innovation Solution
A device that automatically performs oblique cuts in sheets and inserts flexible cards by using cutting blades and pushers, allowing for easy card retrieval while maintaining a professional appearance, with optional features like card arching for rigid cards and semiautomatic loading systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual insertion of cards through oblique cuts is used, then the card can be retrieved easily and the document presents an impeccable appearance, but the process is tedious and laborious
Solution Approach 1:
The device performs preliminary actions by automatically creating the oblique cuts in the sheet and positioning the card corners before manual insertion. The die-cutting machine pre-prepares the sheet with precise oblique cuts, and the device holds and positions multiple cards ready for insertion, reducing the manual effort required during the actual insertion process.
Solution Approach 2:
The device acts as an intermediary tool between the sheet with oblique cuts and the cards. It provides a structured mechanism with guides and positioning elements that facilitate the insertion process, transforming the tedious manual arching and insertion into a more controlled and efficient operation while maintaining the quality of card placement.
2Ease of manufacture
If adhesive tape is used to annex cards to sheets, then the attachment is simple, but the image appears poor and careless
Solution Approach 1:
The invention replaces the adhesive tape mechanical attachment system with a precision cutting and insertion system. Instead of using adhesive that requires careful application and creates visible residue, the device uses mechanically precise oblique cuts and card positioning to achieve a clean, professional appearance while maintaining simple operation.
Solution Approach 2:
The device changes the attachment parameters from adhesive-based to cut-based attachment. By controlling the geometry and precision of the oblique cuts and the insertion depth of card corners, it achieves both simplicity of application and high appearance quality, eliminating the need for adhesive materials and their associated application complexities.
3Strength
If stapling is used to attach cards to sheets, then the attachment is secure, but the card cannot be retrieved intact and separately
Solution Approach 1:
The invention segments the attachment mechanism into separate functional elements: the oblique cuts in the sheet and the card corners that fit into them. This segmentation allows the card to be securely held in place through the interlocking geometry of the cuts and card corners, while still enabling easy retrieval by simply pulling the card out, as the connection is mechanical rather than permanent like staples.
Solution Approach 2:
Instead of attaching the card to the sheet through a permanent connection that requires destruction to separate, the invention inverts the approach by creating negative space (oblique cuts) in the sheet that receive the card corners. This inverted attachment method provides security through geometric interlocking while maintaining ease of retrieval, as the card can be removed without damaging either the card or the sheet.
Data Source
AI summary
A device far placement of a card in a sheet, the device having one support plaque of the sheet, with windows for insertion of the corners of the card, cutting blades facing the windows to be displaced through the windows to provide oblique cuts on the sheet. The device further has a card holder plaque for fastening the card in a window, wherein part of the contour of this window is level with the route of the blades. Pushers are moveable towards the support plaque, facing the windows of the support plaque, for insertion of the corners of the card through the oblique cuts of the sheet. The cutting blades and of the pushers are displaced by an actuator.