Game Controller Analog Stick Tilt Limiting Mechanism
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Solution Overview
Problem
Conventional game controllers with analog sticks face limitations in detecting precise directional inputs and providing a non-conventional operational feel due to the mechanical constraints of the stick's movement within the controller's housing.
Innovation Solution
The design incorporates a protruding portion of the operation member that contacts a pedestal within the housing, limiting the tilt of the analog stick and utilizing sensors to detect applied forces, allowing for enhanced directional input detection and reduced friction during operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the analog stick is allowed to move freely within the housing, then the operational range is increased, but the measurement precision of directional input deteriorates
Solution Approach 1:
The operation member is divided into multiple functional portions: a key top for user input, a shaft portion for movement, and a first portion for limiting movement. The housing includes a second portion that acts as a separate limiting structure. This segmentation allows the stick to move freely within defined boundaries, achieving both operational range and directional precision.
Solution Approach 2:
A sensor is introduced as an intermediary between the operation member and the housing. The sensor detects the position and movement of the operation member, providing precise directional input detection while allowing the mechanical structure to maintain its operational range through the first and second portions.
2Measurement precision
If the operation member is constrained by contact between portions, then the measurement precision of applied force is improved, but the ease of operation deteriorates due to increased friction
Solution Approach 1:
The patent replaces direct mechanical contact for force detection with a sensor-based system. The sensor detects the position and movement of the operation member, eliminating the need for complex mechanical force-sensing mechanisms that would increase friction and reduce operational smoothness.
Solution Approach 2:
The patent changes the detection parameter from direct mechanical force contact to positional measurement. By detecting the position of the operation member and inferring movement and applied force from position changes, the system achieves force detection precision without the friction penalties of direct mechanical contact.
3Stability of the object's composition
If the first portion protrudes beyond the shaft portion, then the structural stability is improved, but the device complexity increases
Solution Approach 1:
The operation member is formed as an integrated structure where the key top, shaft portion, and first portion are merged into a single component. This integration provides structural stability through the protruding first portion while avoiding the complexity of assembling multiple separate parts.
Solution Approach 2:
The operation member serves multiple functions through its different portions: the key top provides user interface functionality, the shaft portion enables movement, and the first portion provides structural stability and movement limiting. This multi-functionality within a single component reduces overall device complexity.
Data Source
AI summary
A controller as an example of an exemplary embodiment includes a housing including an opening, and an operation member, a part of which is exposed through the opening. The operation member includes a key top exposed through the opening and operated by a user, a shaft portion extending downward from the key top, and a protruding portion protruding from the shaft portion. Further, in the housing, a pedestal with which the protruding portion of the operation member comes into contact when the operation member is tilted is provided. The tilt of the operation member is limited by the protruding portion coming into contact with the pedestal. Further, a sensor for detecting pressure is provided on the pedestal.