Mobile Terminal Safety Switch Clamp With Inclined Friction Hold
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Solution Overview
Problem
Existing robot operation units struggle to securely attach and hold mobile terminals of varying sizes, leading to potential displacement during operation, which can compromise safety and efficiency.
Innovation Solution
A safety switch device with a movable portion and holding portions with inclined surfaces and elastic members, which securely attach and hold mobile terminals by generating frictional forces to prevent movement in three-dimensional directions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple attachment structure is used to attach the mobile terminal to the operation unit, then the device complexity is reduced, but the mobile terminal cannot be securely held and may displace during operation
Solution Approach 1:
The attachment structure is divided into multiple independent holding portions (first holding portion with first elastic member, second holding portion with second elastic member) that can independently secure different parts of the mobile terminal. This segmentation allows each component to perform a specific securing function, achieving reliable attachment without requiring a complex integrated structure.
Solution Approach 2:
Different parts of the attachment structure have different properties optimized for their specific functions: the elastic members provide flexible local adaptation to the terminal's shape and size, while the inclined surfaces provide directional guiding and positioning. This local optimization allows the overall structure to remain relatively simple while achieving secure holding through targeted functional enhancements at critical locations.
2Reliability
If a fixed holding structure is used to secure the mobile terminal, then the attachment security is improved, but the device cannot accommodate mobile terminals of varying sizes
Solution Approach 1:
The elastic members are designed to be deformable, allowing the holding portions to dynamically adjust their shape and position according to the mobile terminal's dimensions. When the terminal is inserted, the elastic members deform to accommodate it, then exert restoring force to secure it firmly. This dynamic adaptability enables a single structure to securely hold terminals of various sizes without requiring multiple fixed configurations.
Solution Approach 2:
The physical parameters of the holding structure (specifically the deformation amount and position of the elastic members) change in response to the terminal's size and shape. The inclined surfaces also enable parameter changes by guiding the terminal into proper positioning. These parameter adjustments allow the structure to adapt to different terminal dimensions while maintaining secure attachment through consistent mechanical principles.
3Reliability
If elastic members with high restoring force are used to secure the terminal, then the attachment security is improved, but the ease of operation for inserting and removing the terminal deteriorates
Solution Approach 1:
The inclined surfaces are positioned to provide preliminary guiding action during terminal insertion. Before the elastic members engage with full restoring force, the inclined surfaces guide the terminal into the correct position and orientation, reducing the insertion force required. This preliminary action prepares the system for secure attachment while minimizing the operational effort needed from the user.
Solution Approach 2:
The elastic members exhibit dynamic behavior where their restoring force is distributed over the insertion and removal process. During insertion, the terminal progressively deforms the elastic members, allowing gradual engagement rather than sudden high-force resistance. During removal, the user overcomes the elastic force incrementally. This dynamic force distribution maintains secure attachment while enabling manageable operation.
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 safety switch device effectively stabilizes mobile terminals of different sizes, preventing displacement and ensuring secure operation by utilizing a combination of frictional forces and elastic deformation to maintain attachment.
Implementation Method 1
first elastic member which pushes one side of the mobile terminal in a state where the mobile terminal is supported by the back surface supporting portion
Implementation Method 2
second elastic member which pushes the other side of the mobile terminal
Implementation Method 3
each of the inclined surfaces inclines in a direction where the inclined surfaces get close to each other in the moving direction as being distant from the supporting surface
Data Source
AI summary
A safety switch device including a device main body and a movable portion capable of moving in a predetermined moving direction. The device main body is provided with a back surface supporting portion having a supporting surface which supports a back surface of a mobile terminal, and a main-body-side holding portion which pushes one side of the mobile terminal, and the movable portion is provided with a movable-portion-side holding portion which pushes the other side of the mobile terminal, and each of the main-body-side holding portion and the movable-portion-side holding portion is provided with an inclined surface which comes into close contact with the mobile terminal, and each of the inclined surfaces inclines in a direction where the inclined surfaces get close to each other in the moving direction as being distant from the supporting surface in the direction orthogonal to the supporting surface.