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

VSEngineering 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

Engineering Contradiction:
Improvestructural stabilityVSAvoidviewing window space
Core Design Contradiction:
Stability of the object's compositionVSArea of stationary object

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.

Inventive Principle:
Principle #2Taking out (Extraction)

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.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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

Engineering Contradiction:
ImprovefunctionalityVSAvoidmanufacturing and storage costs
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

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.

Inventive Principle:
Principle #1Segmentation

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.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Productivity

If the stamping insert is fixed during manufacturing, then the production speed is improved, but the customization flexibility is reduced

Engineering Contradiction:
Improveproduction speedVSAvoidcustomization flexibility
Core Design Contradiction:
ProductivityVSAdaptability or versatility

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.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS10654302B2Stamping device and stamping insert, especially as a replacement part for a stamping device
Publication Date: 2020.05.19 TRODAT GMBH
  • US10654302B2 patent drawing
  • US10654302B2 patent drawing
  • US10654302B2 patent drawing

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.