Elastic Roller Adhesion Device for Curved Surfaces
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Solution Overview
Problem
Existing attachment apparatuses for adhesive sheets on curved surfaces of mobile bodies face challenges in preventing dust adhesion and ensuring air-tight attachment, often requiring complex control systems and manual handling.
Innovation Solution
The proposed attachment apparatus features a guide mechanism, a slider, a rotatable shaft body, a biasing unit, and an elastic roller to separate and invert the adhesive sheet while delivering the release sheet, thereby preventing dust adhesion and ensuring air-tight attachment without complex control systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a drive unit is used to drive the attachment unit to follow the profile of the adhesion target surface, then the adhesive sheet can be attached on curved surfaces, but the structure of the apparatus becomes complicated
Solution Approach 1:
The elastic roller automatically conforms to the curved surface profile through its inherent elasticity when pressed against the surface, eliminating the need for a complex drive unit to follow the profile. The roller self-adjusts to maintain contact with the adhesion target surface while the squeegee performs the attachment function.
Solution Approach 2:
The patent replaces the complex mechanical drive unit system with a simpler elastic roller mechanism that uses elastic deformation to adapt to surface curvature, reducing mechanical complexity while maintaining the ability to attach on curved surfaces.
2Ease of operation
If the release sheet is entirely peeled off before setting the adhesive sheet, then the adhesive sheet can be properly positioned, but floating dusts are likely to adhere to the adhesive sheet during the period between peeling and attachment
Solution Approach 1:
The squeegee performs preliminary attachment of the adhesive sheet to the curved surface while the release sheet is still partially attached, creating a controlled environment that prevents dust adhesion. The release sheet is then gradually peeled off during the squeegee's movement, ensuring the adhesive surface remains protected until proper attachment is achieved.
Solution Approach 2:
The squeegee acts as an intermediary that simultaneously performs multiple functions: it presses the adhesive sheet against the curved surface, guides the gradual peeling of the release sheet, and prevents dust adhesion by maintaining contact during the entire process, eliminating the exposed period between complete peeling and attachment.
3Device complexity
If manual pressing is used to attach the adhesive sheet on curved surfaces, then the process can be performed with simple equipment, but air intrusion occurs between the adhesive sheet and the curved portion
Solution Approach 1:
The squeegee is designed with a curved surface that matches the profile of the adhesion target surface, allowing it to conform to curved geometries and maintain uniform contact pressure. This curved design enables the squeegee to push air out from beneath the adhesive sheet while following the surface contour, achieving air-tight attachment on curved surfaces.
Solution Approach 2:
The squeegee is designed to move dynamically along the curved surface, following the profile changes while maintaining continuous contact. This dynamic movement allows the squeegee to progressively expel air from the adhesive sheet-surface interface, ensuring complete air-tight attachment even on complex curved geometries.
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
This solution effectively prevents floating dusts from adhering to the adhesive sheet and ensures airtight attachment on curved surfaces with a simplified structure, reducing the need for manual handling and complex control systems.
Implementation Method 1
an elastic roller supported by the connector, in which the elastic roller is configured to separate the sheet piece into the adhesive sheet to be inverted by the elastic roller and the release sheet to be delivered in the attaching direction
Implementation Method 2
the elastic roller is configured to separate the sheet piece into the adhesive sheet to be inverted by the elastic roller and the release sheet to be delivered in the attaching direction
Implementation Method 3
a biasing unit configured to apply a biasing force in a rotation direction to the shaft body... the adhesive sheet inverted by the elastic roller is pressed to be attached on the adhesion target surface by the biasing force
Data Source
AI summary
An attachment apparatus includes: a guide mechanism provided along an attaching direction on an adhesion target surface; a slider supported by the guide mechanism in a manner movable in the attaching direction; a shaft body rotatably supported by the slider; a biasing unit that applies a biasing force in a rotation direction to the shaft body; a connector extending from the shaft body in a radial direction of the shaft body; and an elastic roller supported by the connector. The elastic roller separates a sheet piece into an adhesive sheet to be inverted by the elastic roller and a release sheet to be delivered in the attaching direction. The adhesive sheet inverted by the elastic roller is pressed to be attached on the adhesion target surface by the biasing force.