Magnetic Pushbutton Switch Mounting Without Panel Openings
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Solution Overview
Problem
The existing pushbutton switches in amusement machines, which have an operable portion received in an attachment opening in a transparent material, risk fracturing the material due to strong user forces, and are vulnerable to unauthorized removal.
Innovation Solution
A pushbutton switch design with an operable portion removably engaged to an attachment on one surface of a transparent support, using a movable magnet to lock the operable portion, preventing unauthorized removal and eliminating the need for an attachment opening, allowing easy attachment and replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the pushbutton switch is received in an attachment opening in the transparent material, then the pushbutton switch can be installed on the transparent material, but the strength of the transparent material is lowered and it may fracture with cracks extending from the opening
Solution Approach 1:
A magnetic attachment mechanism is introduced as an intermediary between the pushbutton switch and the transparent material. The attachment includes a magnet that magnetically couples with a ferromagnetic plate behind the transparent material, eliminating the need for physical openings in the transparent material while still enabling secure installation.
Solution Approach 2:
The mechanical connection system using physical openings and fasteners is replaced with a magnetic field-based attachment system. This substitution eliminates stress concentrations and structural weaknesses caused by openings while maintaining the ability to securely mount the pushbutton switch.
2Ease of repair
If the operable portion is made removably engaged to facilitate replacement, then easy attachment and removal is achieved, but the operable portion may be removed by users with ill intentions
Solution Approach 1:
The magnetic attachment mechanism provides self-aligning and self-locking functionality. The magnet automatically attracts and holds the ferromagnetic plate, creating a secure connection that requires deliberate force to separate, while still allowing authorized personnel to easily remove and replace components when needed.
Solution Approach 2:
The magnetic force parameters are optimized to provide sufficient holding strength to prevent accidental or unauthorized removal under normal use conditions, while allowing controlled removal by applying deliberate force. The magnetic field strength and geometry are tuned to create a balance between security and serviceability.
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
Prevents unauthorized removal of the operable portion, maintains the structural integrity of the transparent material, and facilitates easy attachment and replacement while enhancing flexibility in attachment positions.
Implementation Method 1
The operable portion includes a movable magnet movable in a pressing direction from the operable portion toward the detector and in a direction opposite to the pressing direction
Implementation Method 2
The attachment has a loose-fitting hole to loosely receive the movable magnet with the operable portion being engaged with the attachment
Data Source
AI summary
A pushbutton switch according to one or more embodiments includes an attachment fixed to one surface of a support, an operable portion removably engaged with the attachment, and a detector attached to another surface of the support. The attachment has a loose-fitting hole to loosely receive the movable magnet with the operable portion being engaged with the attachment.