Rotary Input Haptic Layout for Compact Vibration Feedback
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Solution Overview
Problem
Existing input devices face challenges in reducing their overall size due to the need for large, powerful vibrating members to transmit vibrations effectively, which necessitates a larger holding member and operating member, making them bulky.
Innovation Solution
The input device design includes vibrating members positioned such that their longitudinal direction is parallel to the virtual rotation axis, allowing them to be compactly integrated within the holding member, and utilizing multiple vibrating members to transmit vibrations efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If large, powerful vibrating members are used to transmit vibrations effectively, then vibration transmission effectiveness is improved, but device size increases
Solution Approach 1:
The patent reorients the vibrating member from a conventional horizontal arrangement to a vertical arrangement where its longitudinal axis is parallel to the virtual rotation axis. This dimensional change allows the vibrating member to be positioned within the operating member's volume, eliminating the need for additional horizontal space and thereby reducing overall device size while maintaining vibration transmission effectiveness.
Solution Approach 2:
The vibrating member is nested within the operating member structure. By positioning the vibrating member vertically with its longitudinal axis parallel to the virtual rotation axis, it fits inside the operating member's hollow interior, allowing one component to be contained within another and thus reducing the external dimensions of the device.
2Reliability
If the vibrating member is positioned to transmit vibrations effectively, then vibration transmission is improved, but the holding member size increases
Solution Approach 1:
The patent changes the spatial arrangement by orienting the vibrating member vertically along the rotation axis rather than horizontally. This dimensional reconfiguration allows the vibrating member to be positioned within the operating member's internal volume, eliminating the need for the holding member to extend horizontally and thereby reducing its size.
3Productivity
If multiple vibrating members are used to transmit vibrations efficiently, then vibration transmission efficiency is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple vibrating members into a single integrated vibrating member assembly that operates as one functional unit. The multiple vibrating members are positioned adjacently and controlled synchronously, allowing them to function as a unified vibration transmission system that achieves efficient vibration delivery without requiring separate control mechanisms for each member.
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 enables a smaller overall device size while maintaining effective vibration transmission and tactile feedback, allowing for stronger vibrations and precise control of vibration directions.
Implementation Method 1
a vibrating member configured to vibrate the holding member and transmit vibrations to the operating member via the holding member
Data Source
AI summary
An input device includes: an operating member configured to allow a user to rotate the operating member; a holding member configured to hold the operating member such that the operating member is allowed to rotate about a virtual rotation axis; a vibrating member configured to vibrate the holding member and transmit vibrations to the operating member via the holding member; a rotation detection member configured to detect a state of rotation of the operating member; and a control part configured to control drive of the vibrating member according to the state of rotation of the operating member. The vibrating member is held by the holding member such that a longitudinal direction of an outer shape of the vibrating member is parallel to the virtual rotation axis.