Coating Film Transfer Tool with Protruding Tip for Uniform Pressure
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing coating film transfer tools often experience center dropout issues due to uneven pressing force across the transfer head, leading to insufficient adhesion and potential cracking or chipping of the coating film.
Innovation Solution
A coating film transfer tool design featuring a protruding tip that presses the center of the transfer head's main body portion onto the target surface, allowing the transfer head to pivot and maintain even pressure distribution, with tape guides arranged to prevent tape deviation and ensure uniform coating application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the pressing edge portion is made elastically deformable by thinning the main body piece, then the pressing force can be uniformized across the transfer head, but the strength of the main body piece is reduced and additional transfer load is required
Solution Approach 1:
The pressing edge portion is separated from the main body piece through a slit, creating an independent elastically deformable component. This segmentation allows the pressing edge to be optimized for elasticity while the main body maintains its strength, resolving the contradiction between uniform pressing force and structural strength.
Solution Approach 2:
Only the pressing edge portion at the front end is made elastically deformable by thinning and separating it from the main body, while the rest of the main body piece retains its original thickness and strength. This local quality change ensures uniform pressing force exactly where needed without compromising overall structural integrity.
2Ease of operation
If the transfer head is made pivotable about the casing, then the coating film can be transferred with a weaker force, but the coating film may not be transferred in the center due to insufficient pressing force
Solution Approach 1:
The pressing edge portion is made elastically deformable while the main body remains rigid, creating a localized compliance zone. This allows the transfer head to pivot easily for alignment while the elastic pressing edge ensures sufficient pressing force is applied to the center during transfer, preventing center dropout.
Solution Approach 2:
The pressing edge portion is designed to be elastically deformable, allowing it to dynamically adapt to the transfer target surface. This dynamic capability ensures that even with reduced overall pressing force, the elastic deformation concentrates sufficient force at the pressing edge to prevent center dropout.
3Reliability
If the pressing edge portion strongly abuts onto the transfer target surface by elastic deformation, then the pressing force is uniformized, but a transfer load must be applied in addition to the pressing force
Solution Approach 1:
The elastic deformation of the pressing edge portion and the pressing action are merged into a single integrated mechanism. The elastic deformation itself generates the uniform pressing force, eliminating the need for separate transfer load mechanisms and simplifying the overall force application system.
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
Prevents center dropout and enhances adhesion by distributing pressure evenly, reducing the risk of cracking or chipping while allowing for easy alignment of the transfer head without requiring strong force or deformation.
Implementation Method 1
the protruding tip presses a part of an area including a center of the left-right direction of the main body portion to the transfer target surface side
Implementation Method 2
the transfer head may be pivotable about the protruding tip
Data Source
Figure 1(a)~1(b)
Figure 2
Figure 3
AI summary
[Problem] To provide a convenient coating film transfer tool capable of preventing a state in which a coating film is not transferred in the center of the coating film in a pressing edge portion of a transfer head. [Means for Resolution] A coating film transfer tool 1 of the present invention includes: a casing 2 that houses a feeding reel 4 around which a transferable tape 3 before transferring a coating film is wound and a winding reel 6 that winds the transferable tape 3 after transferring the coating film; and a transfer head 5 having a main body portion 5b arranged in a front side which is one side of a longitudinal direction of the casing 2 to extend in a left-right direction perpendicular to the longitudinal direction in a front end portion and provided with a pressing edge portion 5a for transferring the coating film to a transfer target surface. The casing 2 or a base member 19 housed in the casing 2 has a protruding tip 191 that extends to the transfer head 5 side. The protruding tip 191 presses a part of an area including a center of the left-right direction of the main body portion 5b to the transfer target surface side in the event of a transfer.