Smart Device Finger Grip With Variable Sheet And Slide Pin
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Solution Overview
Problem
Users face difficulties in stably holding smart devices for extended periods, especially those with smaller hands, due to increased screen sizes and the need for one-handed operation, which can lead to safety issues and device damage.
Innovation Solution
A finger grip for smart devices featuring a variable sheet with protrusions that adjust to fit different finger thicknesses, coupled with a guide sheet and fixing rivet system, allowing for secure attachment and adjustable angles without adhesives, and enabling rotation for enhanced usability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional mounting stand is used to mount the smart phone, then the smart phone can be mounted on an arbitrary place, but it is still inconvenient to manipulate the smart phone on the user's hands
Solution Approach 1:
The finger grip is divided into multiple functional layers: a bonding sheet for attachment to the smart device, a guide sheet with guide slots for structural support, and a variable sheet with protrusions that can be reciprocated to adjust fit. This segmentation allows each layer to perform its specific function while collectively providing both mounting capability and manipulability.
Solution Approach 2:
The variable sheet incorporates a slide pin that can reciprocate within guide slots, allowing the grip to dynamically adjust its configuration. The protrusions on the variable sheet can move to different positions along the guide slots, enabling the grip to adapt to different finger sizes and provide optimal fit while maintaining ease of manipulation.
2Strength
If adhesive is used to bond components, then bonding forces are improved, but harmful factors to the human body are introduced
Solution Approach 1:
The patent replaces chemical bonding (adhesive) with mechanical bonding methods. The components are joined through physical interlocking mechanisms such as the slide pin moving within guide slots, protrusions fitting into recesses, and friction-based holding. This mechanical substitution eliminates harmful adhesives while maintaining sufficient bonding strength for the application.
3Ease of manufacture
If a fixed-size sheet is used, then manufacturing is simplified, but adaptability to different finger thicknesses is reduced
Solution Approach 1:
The variable sheet is designed with a slide pin that can reciprocate within guide slots, allowing the sheet to dynamically adjust its effective size. The protrusions on the variable sheet can move to different positions along the guide slots, enabling the grip to adapt to different finger thicknesses. This dynamic mechanism maintains manufacturing simplicity while achieving size adaptability.
Solution Approach 2:
The grip allows change in the effective parameters of the variable sheet through reciprocation of the slide pin. By moving the slide pin along the guide slots, the position and configuration of protrusions change, thereby adjusting the fit for different finger thicknesses without requiring multiple fixed-size components.
4Ease of operation
If the smart device is held by one hand, then manipulation is easier, but stability is reduced leading to potential damage
Solution Approach 1:
The finger grip concentrates holding force at specific contact points between the variable sheet and the user's finger. The protrusions on the variable sheet create localized pressure points that conform to the finger's surface, providing stable holding through distributed local contact rather than diffuse pressure. This enhances stability while maintaining one-handed manipulation.
Solution Approach 2:
The variable sheet is designed with curved surfaces and rounded protrusions that conform to the natural curvature of human fingers. This spherical/curved geometry maximizes contact area and distributes pressure evenly across the finger surface, improving holding stability while maintaining comfort and ease of manipulation.
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 finger grip provides stable and adjustable holding of smart devices, reducing user fatigue and safety risks, while being manufactured without harmful adhesives, improving productivity and minimizing device damage through improved bonding forces and simplified processes.
Implementation Method 1
a bonding sheet (100) having a bonding surface (110) attached to one side of an outer surface of the smart device (10)
Implementation Method 2
capable of being made by means of heat fusion, without any separate adhesive, so that the finger grip does not give any harm to the human body, bonding forces among components are improved
Data Source
AI summary
The present invention relates to a finger grip for a smart device, including: a bonding sheet having a bonding surface attached to one side of an outer surface of the smart device; a guide sheet coupled to one side surface of the bonding sheet and having a guide slot formed on one side thereof and a coupling groove formed on the other side thereof; a variable sheet laminated on one side surface of the guide sheet and having a fusion portion formed correspondingly to the coupling groove and a slide pin formed protrudingly therefrom to pass through the guide slot; a fixing rivet coupled to the slide pin of the variable sheet to prevent the slide pin from escaping from the guide slot; and a printed film coupled to one side surface of the variable sheet.