Operation Device Guide Structure for Realistic Trigger Feedback
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Solution Overview
Problem
Existing operation devices for game controllers, such as gun units, fail to provide a realistic game operation experience due to limited reaction forces and difficulty in transmitting vibrations directly to the finger operating the trigger, leading to rattling issues and inability to apply various operation feelings.
Innovation Solution
An operation device with a guide structure that includes a chassis, a movement member, a motor, a position detection unit, and a control device, utilizing a guide shaft and sliding guide portion to apply reaction forces directly to the finger, and featuring a pinion gear and rack portion with helical teeth to minimize unnecessary moments and stabilize the movement member, thus preventing rattling and enhancing the realism of the operation experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a vibration mechanism is provided in the gun main body to reciprocatingly vibrate the entire gun, then a reaction force can be applied to the gun main body, but the reaction force is limited to vibration force only and cannot provide various operation reaction forces
Solution Approach 1:
The patent employs a linear motor that can dynamically generate various types of forces (vibration force, impact force, constant force) by controlling the drive signal frequency and waveform. This dynamic capability allows a single motor to replace multiple specialized mechanisms, providing various operation reaction forces without significantly increasing device complexity
Solution Approach 2:
By changing the drive signal parameters (frequency, amplitude, waveform) supplied to the linear motor, the system can generate different types of reaction forces. For example, high-frequency signals produce vibration forces, while lower-frequency signals produce impact forces, allowing versatile operation feedback through parameter modulation alone
2Ease of operation
If the vibration mechanism vibrates the entire gun main body, then a reaction can be transmitted to the operator's hand, but the reaction force does not directly act on the finger operating the trigger
Solution Approach 1:
The patent segments the gun unit into distinct functional components: the gun main body and the trigger assembly. The linear motor is specifically positioned in the trigger assembly to directly drive the trigger, separating the vibration function from the trigger operation function. This segmentation allows the trigger to receive direct reaction forces independently while the gun main body can have its own vibration mechanism
Solution Approach 2:
The trigger assembly acts as an intermediary between the linear motor and the operator's finger. The linear motor directly drives the trigger through the trigger assembly, which then transmits the reaction force directly to the finger. This intermediary structure ensures that the reaction force path is direct and unambiguous, enhancing the realism of the operation feedback
3Reliability
If slight rattling is generated in the trigger, then vibrations applied to the entire gun are not easily transmitted to the trigger, but the rattling itself degrades the operation quality
Solution Approach 1:
The patent replaces traditional mechanical connection mechanisms (which are prone to rattling and loose fits) with a piezoelectric element-based actuation system for the trigger. The piezoelectric element directly converts electrical signals into mechanical displacement, eliminating the need for intermediate mechanical linkages that could generate rattling. This substitution ensures both reliable vibration transmission and smooth trigger operation without rattling
Solution Approach 2:
The patent employs a guide shaft with a cylindrical shape and a guide hole that provides curved, constrained motion paths for the trigger assembly. This geometric design ensures smooth, rattling-free movement by maintaining continuous contact surfaces and eliminating gaps that could cause rattling during trigger operation
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 device effectively applies various operation feelings to the operation portion, reduces rattling, and provides a more realistic game operation by directly transmitting reaction forces to the finger, enhancing the overall gaming experience.
Implementation Method 1
a motor configured to apply a force to the movement member
Implementation Method 2
a guide shaft and a sliding guide portion are provided to be parallel to each other in the chassis, a bearing portion and a sliding portion are provided in the movement member, the guide shaft is inserted into the bearing portion, the sliding portion slides on the sliding guide portion
Implementation Method 3
a pinion gear which is rotationally driven by the motor is provided, and a rack portion which engages with the pinion gear is formed in the movement member
Implementation Method 4
a pinion gear which is rotationally driven by the motor is provided, and a rack portion which engages with the pinion gear is formed in the movement member
Data Source
AI summary
A movement member which reciprocates includes a thick portion and a thin portion, a bearing portion formed in the thick portion is slidingly supported by the guide shaft, and a sliding portion formed in the thin portion is slidingly guided by the sliding guide portion. Power of the motor is transmitted to a pinion gear via a speed reduction gear and a speed reduction mechanism inside a gear box, and a movement reaction force is applied from the pinion gear to the rack portion. Since the rack portion is positioned on an axis Os, a force is effectively applied to the movement member by the power from the motor.