Gamepad Joystick Mechanism With Direct Sensing Assembly

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Solution Overview

Problem

Existing gamepad joystick mechanisms require high precision in assembly and machining, leading to reduced product yield due to complex structures and high assembly requirements.

Innovation Solution

A simplified joystick mechanism for gamepads, comprising a mounting base, circuit board, first rocker assembly, and second rocker assembly, where the first rocker and second rocker are directly connected to their respective sensing components, eliminating the need for intermediate components and simplifying assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If intermediate components are used to connect rockers and sensing components, then assembly flexibility is improved, but assembly complexity and tolerance accumulations increase

Engineering Contradiction:
Improveassembly flexibilityVSAvoidassembly complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent removes intermediate components from the connection between rockers and sensing components. The sensing components are directly mounted on the rockers, eliminating unnecessary intermediate elements and simplifying the assembly structure while maintaining operational flexibility.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent combines the rocker and sensing component assemblies into integrated units. The first rocker assembly includes the first rocker and first sensing component as a unified structure, and the second rocker assembly includes the second rocker and second sensing component, reducing the number of separate parts and assembly steps.

Inventive Principle:
Principle #5Merging (Combining)

2Measurement precision

If high machining precision is required for parts and components, then control precision is improved, but manufacturing cost and production difficulty increase

Engineering Contradiction:
Improvecontrol precisionVSAvoidmanufacturing difficulty
Core Design Contradiction:
Measurement precisionVSEase of manufacture

Solution Approach 1:

The patent divides the joystick mechanism into functionally independent rocker assemblies. Each rocker assembly (first and second) operates independently with its own rocker and sensing components, allowing for modular manufacturing and assembly. This segmentation reduces the overall machining precision requirements compared to a fully integrated design.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent applies precision requirements selectively to critical components only. The rockers and sensing components that directly affect control precision are manufactured with high precision, while other supporting structures can be manufactured with standard tolerances, reducing overall manufacturing difficulty.

Inventive Principle:
Principle #16Partial or excessive action

3Measurement precision

If complex assembly structures are used to ensure control precision, then positioning accuracy is improved, but product yield is reduced

Engineering Contradiction:
Improvepositioning accuracyVSAvoidproduct yield
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The sensing components are pre-positioned and fixed on the rockers during the rocker assembly manufacturing process. This preliminary positioning ensures accurate alignment before final assembly into the joystick mechanism, reducing the need for complex post-assembly adjustments and improving product yield.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent introduces precise mounting structures as intermediaries between the rockers and sensing components. These specialized mounting features ensure accurate positioning and alignment without requiring extremely tight tolerances on all mating surfaces, thereby simplifying assembly and improving yield.

Inventive Principle:
Principle #24Intermediary (Mediator)

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

The simplified structure improves positioning accuracy and product yield by reducing assembly complexity and tolerance accumulations, while maintaining control precision and independence between directional controls.

Implementation Method 1

the first sensing component is connected to the first rocker and is disposed corresponding to the first sensor, and the first rocker assembly is capable of swinging around a first direction to drive the first sensing component to swing with respect to the first sensor. The second sensing component is connected to the second rocker and is disposed corresponding to the second sensor

Methodology Applied
Scientific EffectMagnetic field sensing: Hall Effect

Data Source

PatentUS20250128151A1Joystick mechanism and gamepad
Publication Date: 2025.04.24 SHENZHEN GULI TECHNOLOGY CO LTD
  • US20250128151A1 patent drawing
  • US20250128151A1 patent drawing
  • US20250128151A1 patent drawing

AI summary

A joystick mechanism and a game pad are provided. The joystick mechanism includes a mounting base, a circuit board, a first rocker assembly, and a second rocker assembly. The circuit board is disposed in the mounting base, and the circuit board includes a first sensor and a second sensor. The first rocker assembly includes a first rocker and a first sensing component, and the first rocker assembly is capable of swinging around a first direction to drive the first sensing component to swing with respect to the first sensor. The second rocker assembly includes a second rocker and a second sensing component, the second rocker assembly is capable of swinging around a second direction to drive the second sensing component to swing with respect to the second sensor, the second direction is perpendicular to the first direction.