Pseudo-force Sense Generation via Asymmetric Vibration
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Solution Overview
Problem
Existing pseudo-force sense generation apparatuses fail to effectively transfer asymmetric vibration forces to physical parts when not held by the user, limiting the perception of pseudo-force sense.
Innovation Solution
A pseudo-force sense generation apparatus featuring a first and second contact member disposed along the outer peripheral surface of a mounting region, joined by a joining member, and a vibration element performing cyclic asymmetric vibration along a line passing through a virtual point between them, allowing force transfer to the physical part without requiring user hold.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the apparatus is merely placed on the surface of the physical part, then the mounting is simple, but the force based on asymmetric vibration is not sufficiently transferred to the physical part
Solution Approach 1:
The apparatus is divided into multiple contact members (first contact member and second contact member) that are disposed at different positions along the outer peripheral surface of the mounting region. This segmentation allows the vibration element to transfer force to multiple contact points simultaneously, improving overall force transfer efficiency while maintaining simple mounting through the band structure.
Solution Approach 2:
The first contact member and second contact member are joined together by a joining member to form an integrated contact system. This merging allows the asymmetric vibration from a single vibration element to be distributed to multiple contact members, enhancing force transfer to the physical part while maintaining the simplicity of placement-based mounting.
2Ease of manufacture
If the vibration element performs asymmetric vibration in the tangential direction of the surface, then the vibration element design is straightforward, but the force is not sufficiently transferred to the physical part
Solution Approach 1:
Instead of relying solely on tangential vibration direction, the invention introduces a spatial dimension by disposing multiple contact members at different positions along the outer peripheral surface. The vibration element performs asymmetric vibration that generates force in multiple directions, and the joining member transmits this force to multiple contact members, achieving sufficient force transfer without changing the fundamental tangential vibration mechanism.
3Adaptability or versatility
If the apparatus is mounted by a band, then the mounting is flexible, but the force based on asymmetric vibration is still not sufficiently transferred
Solution Approach 1:
The band-mounted apparatus is segmented into multiple contact members (first and second contact members) that are distributed along the outer peripheral surface of the mounting region. This segmentation ensures that when the band flexes or moves, the asymmetric vibration force is distributed to multiple contact points, improving force transfer efficiency while preserving the flexible band mounting.
Solution Approach 2:
The joining member acts as an intermediary that connects the first contact member and the second contact member. It transmits the force generated by the vibration element to both contact members, ensuring effective force transfer even when the band-mounted apparatus experiences movement or deformation, thereby maintaining both flexibility and force transfer efficiency.
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
Enables users to perceive an appropriate pseudo-force sense without holding the apparatus, with the vibration element's asymmetric motion effectively transferring force through the contact members to the physical part, enhancing the perception of pseudo-force sense.
Implementation Method 1
a vibration element that performs cyclic first asymmetric vibration along a line passing through a virtual point in the mounting region and the first contact member
Data Source
AI summary
The present invention provides a pseudo-force sense to the user without requiring the user holding onto an apparatus. The pseudo-force sense generation apparatus includes: a first contact member and a second contact member that are disposed along an outer peripheral surface of a mounting region, which is a three-dimensional region occupied by a body of the user; a joining member that joins the first contact member to the second contact member; and a vibration element that performs cyclic first asymmetric vibration along a line passing through a virtual point in the mounting region and the first contact member, and transfers a force in a direction along the line based on the first asymmetric vibration to the first contact member. The virtual point is disposed between the first contact member and the second contact member, and the is also transferred to the second contact member via the joining member.