Stamping Insert Design for Offset-Free Viewing Window
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Solution Overview
Problem
Existing self-inking stamps with central struts lack space for a viewing window, resulting in an offset replica and increased manufacturing costs due to the need for various stamps with fixed inserts, such as text plates, date stamps, and IBAN codes, which limits customization and flexibility.
Innovation Solution
A stamp design without a central strut, featuring a replaceable stamping insert that can be customized post-manufacturing, allowing for interchangeable text plates, date units, and band units, with a slide track and exchange channel for easy insertion and removal of components, enabling customization and reducing production and storage costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a central strut is used to support the spring element, then the structural stability is improved, but the space for viewing window is reduced and the replica becomes offset
Solution Approach 1:
The patent removes the central strut from the stamp structure, extracting the element that was causing the space constraint. By eliminating this central support element, the viewing window can be positioned centrally without offset, and the replica image can be displayed in the correct position. The spring element is redistributed to lateral positions to maintain structural functionality without the central obstruction.
Solution Approach 2:
The patent redistributes the spring elements from a central vertical arrangement to lateral horizontal positions. This dimensional change allows the viewing window to occupy the central area without interference, while the spring elements maintain their structural support function from the sides. The bow-shaped top part provides the necessary curvature and support without requiring a central strut.
2Adaptability or versatility
If various stamps with fixed inserts (text plates, date stamps, IBAN codes) are produced, then the functionality is improved, but the manufacturing costs and storage costs increase
Solution Approach 1:
The patent divides the stamp into two main segments: a base stamp body and interchangeable inserts (text plates, date units, IBAN codes). The base stamp is manufactured once with standardized components, and different inserts can be attached as needed. This segmentation eliminates the need to manufacture and store multiple complete stamp variants, reducing production and storage costs while maintaining versatility.
Solution Approach 2:
The base stamp is designed with universal mounting structures that can accommodate multiple types of inserts (text plates, date stamps, IBAN codes). The same base stamp body serves multiple functions by allowing different inserts to be attached, eliminating the need for separate dedicated stamps for each function and reducing overall manufacturing complexity.
3Productivity
If the stamping insert is fixed during manufacturing, then the production speed is improved, but the customization flexibility is reduced
Solution Approach 1:
The base stamp is pre-manufactured with standardized mounting structures and preparation features, but the final insert customization is deferred until the user needs it. This preliminary preparation of the base structure allows for efficient production, while the optional insert attachment provides customization flexibility when required, balancing production speed with adaptability.
Data Source
AI summary
In some embodiments, a stamp may comprise at least one stamping component and one stamping insert. The stamp component may be formed of a top a bottom part with a cushion-receiving element. The stamping insert may be connected so as to move synchronously via a reversing mechanism having a slide track in the bottom part via an shaft or trunnion to the top part. In the resting position a text plate mounted on the stamping insert may abut against an ink pad in the cushion receiving element, and that in a stamping process the stamping insert with the text plate can be shifted by the reversing mechanism into a stamping position. At least the text plate carrier and/or the mounted band unit or date unit, may be positioned to be replaceable with the shaft or the trunnions or stub shafts, respectively. The system may include a stamping insert.


