Joining Elastomeric Gel to Plush Fabric via Flexible Adhesive Bonding
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Solution Overview
Problem
Traditional mechanical attachment techniques fail to securely join elastomeric gels to plush toys, as the elastic nature of elastomeric gels causes them to pull away from grooved connections, and existing methods like molten dipping or acrylic glues lead to peeling and potential choking hazards.
Innovation Solution
A toy figure assembly method that joins fabric and elastomeric gel sections along a common seam using adhesive, heat bonding, or sewing, with thermoset glue or energy application to create a strong, flexible bond that withstands stretching, and optionally filling with dry or fluid fill materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional mechanical attachment techniques (grooved bases) are used to join elastomeric gel to plush toys, then the manufacturing process is simple, but the elastomeric gel pulls away from the connection due to its elastic nature
Solution Approach 1:
The patent replaces traditional mechanical attachment methods (grooved bases with thread tightening) with chemical bonding methods. Specifically, it uses adhesives that form strong chemical bonds between the elastomeric gel and plush toy surfaces, eliminating the mechanical interconnection approach that fails due to the elastic nature of elastomeric gel.
Solution Approach 2:
The patent introduces adhesives as intermediary substances between the elastomeric gel and plush toy surfaces. These adhesives act as mediators that create durable bonds, with some embodiments using adhesives applied to grooved bases or directly to the surfaces being joined, providing a reliable connection that accommodates the elastic properties of elastomeric gel.
2Strength
If traditional acrylic glues are used to join elastomeric gel to fabric, then the initial bonding is achieved, but the hardened glue peels away as elastomeric gel stretches and deforms
Solution Approach 1:
The patent changes the key parameter of adhesive flexibility by selecting adhesives with appropriate durometer values (hardness measurements). It specifies using adhesives with durometer values between 20-40 Shore A, making them significantly softer and more flexible than traditional acrylic glues. This parameter change allows the adhesive to stretch and deform with the elastomeric gel without peeling away, while still maintaining strong bonding.
Solution Approach 2:
The patent employs flexible adhesive layers that can deform with the elastomeric gel. The adhesive acts as a flexible film or layer that stretches and bends as the elastomeric gel deforms, maintaining continuous bonding without cracking or peeling. This flexible adhesive layer accommodates the dynamic movement and deformation of the elastomeric gel components.
3Productivity
If elastomeric gel is molded using traditional injection molding techniques, then production efficiency is high, but it cannot be molded directly onto plush forms
Solution Approach 1:
The patent divides the manufacturing process into separate stages: first, elastomeric gel components are molded using traditional injection molding techniques for high efficiency; second, these pre-molded elastomeric gel components are attached to plush toy bodies using adhesive bonding. This segmentation allows each process to be optimized independently - injection molding for productivity and adhesive bonding for ease of assembly.
Solution Approach 2:
The patent performs preliminary action by pre-molding elastomeric gel components (such as heads, hands, or other body parts) separately using injection molding before final assembly. These pre-formed components are then attached to the plush toy bodies using adhesives, allowing efficient production of complex elastomeric gel parts that would be difficult to mold directly onto soft plush forms.
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 method provides a durable and safe integration of elastomeric gel and fabric sections, enhancing tactile contrast and play value by maintaining the bond even under deformation, eliminating the risk of peeling and choking hazards.
Implementation Method 1
The sections of the toy figure defined by fabric material and elastomeric gel material are joined together along at least one common seam using adhesive, heat bonding or sewing
Implementation Method 2
The sections of the toy figure defined by fabric material and elastomeric gel material are joined together along at least one common seam using adhesive, heat bonding or sewing
Data Source
AI summary
A toy figure assembly and its method of manufacture. The toy figure has a body structure with an exposed exterior. The exposed exterior of the figure includes at least one first section of fabric material and at least one second section of elastomeric gel material that are joined together along at least one common seam. The common seam can be closed using adhesive, heat bonding or sewing. The sections of the toy figure defined by fabric material are filled with dry fill. The sections of the toy figure defined by elastomeric gel material can be filled with either dry fill or a fluid fill. By forming a toy figure from both fabric material and elastomeric gel, a toy figure is obtained that has external areas having contrasting tactile characteristics, thereby increasing the play value of the toy figure.