Push Button Switch Inclined Bottom Surface
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Solution Overview
Problem
Conventional push button switches in compact electronic devices often compromise click feeling due to oblique pressing, requiring increased installation space or cost when attempting to improve this feedback, and existing solutions either enlarge the switch size or increase costs.
Innovation Solution
The push button switch design features a button section with an inclined bottom surface that rotates to align substantially perpendicular to the movable section at the contact point, maintaining compact size and cost by adjusting the inclination angle within a specific range to enhance the click feeling without lengthening the support arm.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the support arm is lengthened to secure equal stroke amount with small rotation angle, then the click feeling is improved, but the installation space is enlarged
Solution Approach 1:
The invention changes the geometric parameters of the button section by providing an inclined bottom surface with a specific inclination angle (10 to 45 degrees). This parameter change allows the button section to press the movable section from an oblique direction while maintaining a sufficient stroke amount, improving click feeling without lengthening the support arm and thus preserving compact installation space
Solution Approach 2:
The button section is designed with an asymmetric inclined bottom surface rather than a flat or symmetric shape. This asymmetric geometry enables the button to rotate and press the movable section at an optimized angle during actuation, achieving both compact size and satisfactory click feeling
2Area of stationary object
If the button section is pressed from oblique direction, then the installation space is reduced, but the click feeling decreases
Solution Approach 1:
By optimizing the inclination angle of the bottom surface within 10 to 45 degrees, the invention finds the optimal parameter range that balances compact installation space with adequate click feeling, avoiding both extreme oblique pressing and excessive support arm length
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
This design improves click feeling by ensuring the button section presses the movable section from a nearly perpendicular direction, maintaining compact installation space and cost efficiency while providing a satisfying user experience.
Implementation Method 1
a movable section 10 that is vertically movable, a button section 2 that presses the movable section 10, and an elastic member that elastically supports the movable section 10
Implementation Method 2
the support arm 3 and the button section 2 rotate about the leading end of the support arm 3, the leading end being attached to the board
Data Source
AI summary
This switch (SW) is provided with: a switch main body (1) having a movable section (10) configured to be displaced by downward by pressure to bring a movable contact into contact with a fixed contact, the movable section (10) being configured to be displaced upward to release contact between the contacts upon release of the pressure; a button section (2) configured to press an upper surface of the movable section (10) in response to a downward pressing operation; and a support arm (3) in which one of end portions is coupled to the button section (2), and which supports the button section (2). The end of the support arm (3) in the side not coupled to the button section (2) is held at a location in a support surface arranged in the vertical direction such that the support arm (3) is turnable, the location being laterally or obliquely downward with respect to a moving range of an upper surface of the mobile section (10). The bottom surface (2M) of the button section (2) is positioned in an inclined state and separated from the movable section (10) when a downward pressing is not operated to the button section (2). When the downward pressing is operated to the button section (2) and the position of the button (2) is lowered to a position at which the fixed contact and the movable contact of the switch main body (1) are closed, the bottom surface (2M) is in an approximately horizontal state and presses the movable section (10).