Bending Haptic Structure for Multi-Directional Tactile Feedback
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Solution Overview
Problem
Devices that present tactile sensations through vibration, such as mobile terminals, are limited in the types of sensations they can convey due to fixed vibration directions.
Innovation Solution
A tactile presentation apparatus comprising two individually vibrating members connected by a bending portion that changes the relative direction between them, allowing for control of at least one of the vibrations to create varied tactile experiences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a device uses fixed vibration direction to present tactile sensations, then the device structure is simple, but the types of tactile sensations that can be presented are limited
Solution Approach 1:
The device is divided into multiple independent vibration generating members (first vibration generating member and second vibration generating member) that can vibrate individually. This segmentation allows each member to contribute differently to the overall tactile sensation, enabling more varied sensation types without requiring a completely complex system redesign
Solution Approach 2:
The bending portion is made flexible to allow dynamic change in the relative direction between the first and second vibration generating members. By changing the bending angle, the device can dynamically adjust the vibration direction combination, thereby presenting different tactile sensations with a single adjustable mechanism rather than multiple fixed mechanisms
2Adaptability or versatility
If multiple vibration generating members are added to increase tactile sensation variety, then the types of tactile sensations increase, but the device complexity increases
Solution Approach 1:
The bending portion serves multiple functions: it connects the two vibration generating members, provides the flexible joint for direction change, and acts as a structural element that transmits vibrations. This multi-functionality reduces the need for additional separate components, allowing the device to achieve varied tactile sensations without proportionally increasing complexity
Solution Approach 2:
The patent combines the connection structure and the direction-changing mechanism into a single bending portion that integrates both structural support and rotational freedom. By merging these functions into one component rather than using separate connection joints and rotation mechanisms, the device achieves multiple tactile modes with minimized component count
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
This configuration increases the variety of tactile sensations that can be presented by altering the vibration directions and intensities based on the bending angle, enhancing the range of sensations and allowing the device to represent different items.
Implementation Method 1
a first member and a second member that vibrate individually
Implementation Method 2
a first bending portion that bends between the first member and the second member and that changes a relative direction between the first member and the second member
Data Source
AI summary
The present technology relates to a tactile presentation apparatus and a tactile presentation control method with which the types of tactile sensations which can be presented by means of vibration can be increased. The tactile presentation apparatus includes a first member and a second member which can vibrate individually and a first bending portion that bends between the first member and the second member and that changes the relative direction between the first member and the second member. The present technology can be applied to devices that a user operates while holding the device in a hand, for example in a theatrical performance, a movie, or an attraction.