Haptic Feedback System Lever Arms Mounting Plate
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Solution Overview
Problem
Existing haptic feedback systems in input devices, such as touchpads and touch screens, lack effective mechanisms to provide clear and intuitive tactile feedback to users, which can lead to uncertainty about input processing and user experience.
Innovation Solution
A haptic feedback system comprising a mounting frame, a slidably mounted mounting plate, pivotable lever arms, and an actuator that translates pivoting motion into linear motion, allowing for precise transmission of haptic feedback to the user through a mechanical interface, enhancing user interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a haptic feedback system is implemented in an input device, then user feedback clarity and input confirmation are improved, but device complexity increases
Solution Approach 1:
The haptic feedback system is segmented into distinct functional components: an actuator for generating haptic forces, a mounting plate for supporting the input device, lever arms for motion transformation, and guides for constrained movement. This segmentation allows each component to be optimized independently while maintaining overall system reliability for input confirmation.
Solution Approach 2:
The mounting plate serves as an intermediary element between the actuator and the input device. It translates and transmits haptic forces from the actuator to the input device, enabling clear tactile feedback while isolating the input device from direct mechanical coupling with the actuator, thus managing system complexity.
2Measurement precision
If a slidable mounting plate with lever arms is used to transmit haptic motion, then haptic feedback precision is improved, but mechanical complexity increases
Solution Approach 1:
The mounting plate is designed to slide dynamically along guided rails, allowing controlled linear motion in response to actuator activation. The lever arms pivot dynamically to transform rotational actuator motion into linear haptic feedback motion. This dynamic design enables precise haptic feedback transmission while using simple, well-understood mechanical principles.
Solution Approach 2:
The system replaces complex multi-axis mechanical couplings with a simplified mechanism using a sliding mounting plate and pivoting lever arms. This substitution maintains precision in haptic feedback transmission while reducing mechanical complexity by using straightforward sliding and pivoting motions instead of complex linkages.
3Manufacturing precision
If guides and bearing pockets are used to restrict mounting plate motion, then motion control accuracy is improved, but manufacturing complexity increases
Solution Approach 1:
The motion control function is segmented into separate elements: guides attached to the mounting plate and bearing pockets in the mounting frame. This segmentation allows each element to be manufactured and assembled independently, improving motion control accuracy through precise guiding while maintaining ease of manufacture through modular assembly.
Solution Approach 2:
The guides act as intermediary elements between the mounting plate and the bearing pockets. They ensure accurate motion transmission by constraining the mounting plate to move only along the intended linear path, improving motion control accuracy while using simple guiding geometry that is easy to manufacture.
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 system provides improved usability by offering clear and intuitive haptic feedback, confirming user inputs and providing warnings, thereby enhancing the overall user experience with input devices.
Implementation Method 1
two opposing lever arms that are pivotably mounted on the mounting frame; and an actuator configured to pivot the two opposing lever arms in opposing directions, wherein the two opposing lever arms are pivoted to cause movement of the mounting plate via the guide
Implementation Method 2
a mechanical interface to a mounting frame, the mechanical interface disposed on a first surface of the mounting plate and comprising pins that interface with bearing pockets disposed in the mounting frame, wherein the pins interfacing with the bearing pockets linearly restrict motion of the mounting plate relative to the mechanical interface
Data Source
AI summary
The invention relates to a haptic feedback system. The haptic feedback system includes a mounting frame configured to interface with an assembly chassis, and a mounting plate configured to support a user input device that provides a haptic feedback to a user. The mounting plate is slidably mounted on the mounting frame. The haptic feedback system further includes a guide disposed on the mounting plate, two opposing lever arms that are pivotably mounted on the mounting frame, and an actuator configured to pivot the two opposing lever arms in opposing directions. The two opposing lever arms are pivoted to cause movement of the mounting plate via the guide.