Tactile Panel Actuator Layout for Stronger Axial Feedback
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing tactile presentation devices are prone to damage due to weak operational strength and inefficient vibration transmission, which affects user experience and device durability.
Innovation Solution
A tactile presentation device design featuring a movable part, a base, a guider, and actuators, where the guider connects the movable part to the base, regulating its displacement in a specific axial direction, and the actuators are positioned to maximize vibration efficiency by aligning with the symmetry axis or being symmetrically disposed, ensuring strong vibration and enhanced durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If actuators are connected to the left and right ends of the front panel, then the touch operation input capability is provided, but the strength for touch operation becomes weak and the device may be damaged
Solution Approach 1:
The patent changes the actuator configuration from symmetric left-right placement to asymmetric placement where at least one actuator is positioned on the symmetry axis of the movable part. This asymmetric arrangement optimizes the transmission of actuator force to the movable part, enhancing both the operational capability and structural strength during touch operations.
2Device complexity
If actuators are positioned at left and right ends, then the device structure is simplified, but vibration transmission efficiency is reduced
Solution Approach 1:
The patent applies local quality by positioning actuators at specific locations on the movable part based on their functional requirements. By placing at least one actuator on the symmetry axis and configuring multiple actuators with specific spacing relationships, the vibration transmission efficiency is enhanced at critical locations while maintaining overall structural simplicity.
3Shape
If actuators are placed symmetrically, then the device structure is balanced, but force conversion to axial displacement is inefficient
Solution Approach 1:
The patent modifies the symmetric actuator configuration by positioning at least one actuator on the symmetry axis of the movable part. This creates an asymmetric arrangement that optimizes the mechanical advantage and force transmission pathway, enabling more efficient conversion of actuator force into axial displacement of the movable part while maintaining structural balance.
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 provides strong and efficient tactile feedback to users while improving durability by effectively converting actuator force into axial displacement, reducing unnecessary vibrations, and enhancing strength against touch operations.
Implementation Method 1
a bush part including a rubber bush provided in the movable part or the base and a shaft portion inserted into the rubber bush to connect the movable part and the base
Implementation Method 2
a guider that connects the base and the movable part, and regulates a displacement direction of the movable part in the one axial direction by sliding in the one axial direction
Data Source
AI summary
A tactile presentation device includes a movable part, a base, a guider, and one or more actuators. The movable part includes a first main surface and presents tactile to a user by being displaced in a predetermined one axial direction parallel to the first main surface.The base supports the movable part in a displaceable manner. The guider connects the base and the movable part, and regulates a displacement direction of the movable part in the one axial direction by sliding in the one axial direction. The actuator displaces the movable part in the one axial direction from one end side of the movable part in the one axial direction. When the number of actuators is one, the actuator is located on a symmetry axis of the movable part parallel to the one axial direction.