Twist-lock directional input device for gamepads
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Solution Overview
Problem
Existing directional input devices for electronic devices lack customization options for user preferences regarding shape, mass, dimension, and texture, leading to suboptimal performance and user experience.
Innovation Solution
A directional input device featuring a twist-lock mechanism that allows for the selective connection and disconnection of a replaceable head and shaft, enabling users to customize the contact surface and shaft material to suit their preferences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed directional input device is used, then the device structure is simple, but the user cannot customize shape, mass, dimension, or texture preferences
Solution Approach 1:
The directional input device is divided into separable components: a replaceable head portion and a base portion. The head can be detached and replaced with different variants to customize shape, mass, dimension, and texture while keeping the base structure simple and reusable.
Solution Approach 2:
The base portion is designed as a universal platform that can accommodate multiple different head variants through a standardized connection interface. This allows a single base to support various customization options without requiring multiple complete device designs.
2Adaptability or versatility
If the head is permanently fixed to the base, then the connection is strong, but the user cannot replace or customize the head
Solution Approach 1:
The connection between head and base transitions from a static permanent bond to a dynamic reversible connection. The snap-fit mechanism with retention arms allows the connection to be strong during use but easily releasable when customization is needed, adapting to both operational and replacement requirements.
3Adaptability or versatility
If a replaceable head mechanism is added, then customization is enabled, but the device complexity increases
Solution Approach 1:
The snap-fit connection mechanism is designed to be self-servicing, requiring no tools or additional components for attachment or detachment. The retention arms automatically engage with the head's features during insertion and can be released by simple user manipulation, eliminating the need for complex locking mechanisms or tooling.
Data Source
Figure 1-1
Figure 1-2
Figure 2-1~2-2
AI summary
A directional input device includes a base and a head selectively connected to the base by a twist-lock mechanism. The head and base define a center axis of the directional input device. The twist-lock mechanism includes a post oriented in an axial direction of the center axis, at least one flange protruding in a radial direction from the post, a receiver configured to receive the post and the flange, and an angularly oriented channel in the receiver configured to allow the post and flange to rotate into the channel and capture the flange in the axial direction.