Pin Display System Using Magnetic Repulsion and Gravity
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Solution Overview
Problem
Conventional pin displays require an electrical control mechanism with a power supply and wiring to operate, which is inconvenient and may limit their application.
Innovation Solution
A pin display system that uses gravity and a magnetic sheet to move pins without the need for electrical control, where pins with pot magnets are inserted into a housing with specific alignment and spacing to utilize magnetic repulsive forces for movement, eliminating the need for electrical control and wiring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If pins are moved by electrical control mechanism, then precise control of pin movement is achieved, but the device requires power supply and wiring which increases device complexity
Solution Approach 1:
The patent replaces the electrical control system with a magnetic field-based control system. Electromagnets generate magnetic fields to attract or repel magnets attached to pins, achieving precise control without electrical connections to moving parts. This substitution eliminates wiring complexity while maintaining control precision.
Solution Approach 2:
The patent introduces magnets as intermediary elements between the control system and pins. These magnets serve as the interface that translates magnetic field variations into pin movement, enabling control without direct electrical contact and simplifying the overall system architecture.
2Adaptability or versatility
If electromagnets are used to move pins, then arbitrary display positions can be achieved, but each electromagnet requires independent electrical control
Solution Approach 1:
The patent merges multiple electromagnet control functions into a unified magnetic field generation system. By coordinating the magnetic fields from multiple electromagnets, the system achieves precise control over pin positions without requiring independent wiring for each control point, reducing overall electrical complexity.
Solution Approach 2:
The electromagnet system is designed to perform multiple functions: attracting pins to specific positions, repelling pins to create gaps, and maintaining pins in neutral positions. This multi-functionality reduces the need for separate control mechanisms for different display operations.
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
Enables a pin display system that operates without electrical power or wiring, allowing for flexible and wireless movement of pins to form three-dimensional point groups for information display.
Implementation Method 1
each of the pot magnets emits a magnetic field capable of moving the pin including the pot magnet in the positive direction of the z direction by a repulsive force due to a magnetic force generated between the pot magnet and the upper surface of the magnetic sheet
Implementation Method 2
a direction in which at least gravity acts is set as a negative direction of a z direction
Data Source
AI summary
One aspect of the present invention is a pin display device 100 including a housing and a plurality of pins, the pin display device 100 being used as a pin display system 300 such that a direction in which at least gravity acts is set as a negative direction of a z direction, and a lower surface of the housing is brought into contact with or into proximity to an upper surface 200a that is one surface of a magnetic sheet 200. Each pot magnet emits a magnetic field capable of moving a pin 120 including the pot magnet in a positive direction of the z direction by a repulsive force due to a magnetic force generated between the pot magnet and the upper surface 200a of the magnetic sheet 200 in a state where the pin 120 including the pot magnet is inserted into a pin insertion hole.