Tape Cartridge Adhesive Region Segmentation for Rotatable Attachment
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Solution Overview
Problem
Conventional methods for attaching a medium to a wrapped member require breaking the medium along a perforation, which can apply additional force and affect the durability of both the medium and the wrapped member.
Innovation Solution
A medium design where the longest length of the adhesive region is less than the adjacent regions, allowing for secure sticking without additional force and preventing misalignment, enabling the medium to be rotatably attached without twisting the wrapped member.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the medium is broken along the perforation to separate the adhesive regions, then the medium can be attached to the wrapped member, but additional force is applied that affects the durability of the medium and wrapped member
Solution Approach 1:
The medium is divided into multiple adhesive regions (first adhesive region and second adhesive region) separated by a non-adhesive region. This segmentation allows the medium to be attached without breaking along perforations, eliminating the harmful additional force while maintaining ease of attachment. Each adhesive region can function independently to secure the medium to the wrapped member.
Solution Approach 2:
The harmful action of breaking along perforations is eliminated by extracting this step from the attachment process. Instead of requiring breakage to separate adhesive regions, the patent uses pre-defined non-adhesive regions that naturally separate the adhesive zones, allowing attachment without any breaking action that could damage the medium or wrapped member.
2Device complexity
If the adhesive region has the same length as adjacent regions, then the structure is simple, but misalignment occurs during attachment
Solution Approach 1:
The adhesive regions are designed with asymmetric length relationships, where the first adhesive region has a different length than the second adhesive region. This asymmetry creates a unique alignment configuration that prevents misalignment during attachment, as the unequal lengths provide clear positional references for proper orientation on the wrapped member.
Solution Approach 2:
Different regions of the medium are given different properties - specifically, the adhesive regions have different lengths tailored to their specific attachment functions. The first adhesive region is optimized for one attachment point while the second adhesive region is optimized for another, with the non-adhesive region providing a transition zone. This local differentiation ensures precise alignment without requiring complex overall structural changes.
3Strength
If the medium is firmly attached without rotation capability, then attachment strength is maximized, but viewability and accessibility are reduced
Solution Approach 1:
The medium incorporates rotational capability while maintaining attachment strength through its multi-region adhesive structure. The non-adhesive region acts as a pivot zone that allows the medium to rotate around the wrapped member, while the adhesive regions maintain secure attachment at the endpoints. This dynamic design enables both firm attachment and rotational movement for improved viewability and accessibility.
Solution Approach 2:
By segmenting the medium into distinct adhesive and non-adhesive regions, the patent enables differential functionality - the adhesive regions provide secure attachment points that maintain strength, while the non-adhesive region between them provides a flexible zone that permits rotation. This segmentation allows the medium to simultaneously achieve both firm attachment and rotational capability.
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
The medium can be securely and rotatably attached to the wrapped member without applying additional force, reducing the risk of misalignment and maintaining durability, while allowing for easy rotation and improved viewability.
Implementation Method 1
an adhesive layer which pasts the tape pieces to each other
Data Source
Figure 1
Figure 2A~2B
Figure 3A~3B
AI summary
A medium (To) includes a base layer (21) and a separation layer (24) stacked on each other. A plurality of regions are defined along a first direction. The plurality of regions include: a first region (D1a) in which a portion of the medium (To) which is in contact with the separation layer (24) includes opposite end portions in a second direction, and at least the opposite end portions are stickable; a second region (D2a, D2b, D3a) which is located on one side of the first region (Dla) in the first direction and in which a portion of the medium (To) which is in contact with the separation layer (24) is non-stickable; and a third region (D3b) which is located on the one side of the second region (D2a, D2b, D3a) in the first direction and in which a portion of the medium (To) which is in contact with the separation layer (24) is stickable. The longest length (DC) of the first region (Dla) in the second direction is less than a length (DD) of the second region (D2a, D2b, D3a) or the third region (D3b) in the second direction at a particular position in the first direction.