Keyboard Stand Hinge Structure With Variable Adhesive Bonding
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Solution Overview
Problem
Thin electronic devices with touch panels lack the ability to be used independently like traditional clamshell laptops due to difficulty in maintaining operability and stability when supported in an erect state.
Innovation Solution
A stand with a flexible member and adjustable leg portion, featuring different bonding adhesive densities to enhance pliability and stability, allowing the device to be supported in an erect position with improved flexibility and operability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a member having flexibility is used as a flexible hinge to connect the electronic apparatus and the stand, then the operability at the time of bending is ensured, but the pliability of the member deteriorates due to bonding adhesive coating
Solution Approach 1:
The patent applies different bonding adhesive coating densities to different regions of the flexible member. The first bonding layer with high coating density is applied to the supporting portion to ensure strong adhesion, while the second bonding layer with low coating density is applied to the flexible member to maintain its pliability. This local differentiation of bonding strength resolves the contradiction between ensuring operability through bonding and maintaining flexibility for bending operations.
Solution Approach 2:
The bonding structure is segmented into two distinct bonding layers with different properties. The first bonding layer provides strong adhesion to the rigid supporting portion, while the second bonding layer provides gentle adhesion to the flexible member. This segmentation allows each layer to perform its specific function without compromising the overall flexibility needed for bending operations.
2Reliability
If bonding adhesive is applied to fix the surface material onto the flexible member, then the surface material is secured, but the pliability of the flexible member deteriorates
Solution Approach 1:
The patent applies bonding adhesive with different coating densities to different components. The flexible member region receives bonding adhesive with low coating density to maintain pliability, while the supporting portion receives bonding adhesive with high coating density for strong fixation. This local quality differentiation ensures reliable surface material fixation without compromising the flexibility of the flexible member.
Solution Approach 2:
The patent changes the parameter of bonding adhesive coating density based on the component being bonded. By adjusting the coating density parameter - low for the flexible member and high for the supporting portion - the patent achieves both reliable fixation and maintained pliability, resolving the contradiction between these two requirements.
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 stand provides high pliability and stability, enabling easy adjustment and secure support of electronic devices, enhancing usability and preventing components from falling off during folding.
Implementation Method 1
a first bonding layer that fixes the surface material onto the supporting portion
Implementation Method 2
a second bonding layer that is formed to have a lower coating density of a bonding adhesive than the first bonding layer and fixes the surface material onto the flexible member
Data Source
AI summary
A stand supports an electronic apparatus in an erect state. The stand includes: a supporting portion that has a supporting surface which supports a rear surface of the electronic apparatus; a leg portion that is rotatably connected to the supporting portion via a hinge; a flexible member that has flexibility, that is formed in a sheet shape, and that is provided along one edge of the supporting portion so as to protrude from the one edge; a surface material that has flexibility and forms front surfaces of the supporting portion and the flexible member; a first bonding layer that fixes the surface material onto the supporting portion; and a second bonding layer that is formed to have a lower coating density of a bonding adhesive than the first bonding layer and fixes the surface material onto the flexible member.