Input Device Segmented Rubber Member for Load Adjustment
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Solution Overview
Problem
Existing input devices that turn on a switching unit in response to a pressing load lack the necessary precision and flexibility in adjusting the elastic deformation and pressing load, limiting their ability to provide reliable and nuanced manipulation feedback.
Innovation Solution
The input device incorporates a rubber member with a first load generating part and multiple load adjusting parts, along with a slide member that presses the rubber member, allowing for adjustable elastic deformation and pressing load settings by summing the loads from these components, enabling finer control over the stroke and pressing load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a single elastic pressure member is used to generate pressing load, then the structure is simple, but the adjustment precision of pressing load and stroke is insufficient
Solution Approach 1:
The elastic pressure member is divided into multiple independent load generating parts (first load generating part and multiple load adjusting parts), each capable of generating independent pressing loads. This segmentation allows precise adjustment of the total pressing load by combining individual loads, thereby improving adjustment precision without requiring an entirely complex multi-component structure.
Solution Approach 2:
The invention transitions from a single-dimensional pressing load adjustment to a multi-dimensional adjustment system by adding multiple load adjusting parts that can independently vary their pressing forces. This enables fine-tuning of the total pressing load through combination of multiple independent load components, achieving precise control over both stroke and pressing load characteristics.
2Reliability
If a higher pressing load is required for reliable manipulation, then the switching reliability improves, but the manipulation force required increases
Solution Approach 1:
The invention employs multiple load adjusting parts that can be dynamically configured to achieve the desired total pressing load. By adjusting individual load components, the system can optimize the balance between switching reliability and manipulation force, allowing the pressing load to be precisely tuned to the minimum necessary level for reliable operation rather than requiring excessive force.
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 configuration enhances the adjustability of the input device, allowing for more precise manipulation feedback and reliable operation under varying loads, while also providing a waterproof structure.
Implementation Method 1
a rubber member provided so as to be elastically deformable, the rubber member pressing the movable contact
Data Source
AI summary
An input device includes: a switch unit that has a fixed contact and a movable contact placed so as to be movable away from and toward the fixed contact; a rubber member provided so as to be elastically deformable, the rubber member pressing the movable contact; and a slide member placed so as to be movable so that the slide member can press the rubber member. The rubber member has a first load generating part, which presses the movable contact, and a plurality of load adjusting parts disposed so as to enclose the first load generating part. The slide member has a first pressing part, which presses the first load generating part, and a plurality of second pressing parts, which press the plurality of load adjusting parts.