Strain Load Detector With Vibration Buffering for Sensor Durability
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Solution Overview
Problem
Existing vibration presenting apparatuses experience excessive stress and generate unwanted sounds due to strong vibrations, leading to potential failure and maintenance needs.
Innovation Solution
A vibration actuator with a movable part, vibration generating part, and elastic support part, featuring a load detecting mechanism and movement regulating part to manage strain and impact resistance, reducing sound and improving durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a vibration actuator generates strong vibration for contact operation feeling, then the vibration presenting function is improved, but excessive stress is applied to the sensor and collision sound is generated
Solution Approach 1:
The patent introduces a buffer member that cushions the movement of the movable element before it can collide with the housing. This beforehand cushioning prevents excessive stress from being applied to the sensor and eliminates collision sounds, while still allowing the vibration actuator to generate strong vibrations for effective contact operation feedback
2Power
If a vibration actuator generates strong vibration for contact operation feeling, then the vibration presenting function is improved, but collision sound is generated
Solution Approach 1:
The patent introduces a buffer member as an intermediary element between the movable element and the housing. This buffer member absorbs the impact and prevents direct collision, thereby eliminating collision sounds while allowing the vibration actuator to maintain strong vibration output for effective contact operation feedback
3Ease of operation
If the movable element moves freely to generate vibration, then the vibration presenting function is improved, but excessive movement causes impact and stress
Solution Approach 1:
The buffer member is positioned to cushion the movable element's movement before it can reach the housing, preventing excessive impact forces while maintaining the vibration feedback function. This allows the movable element to move freely enough to generate effective vibration but limits its movement to prevent damaging impact forces
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
Enhances impact resistance and reduces sound generation, ensuring prolonged apparatus lifespan and reliability.
Implementation Method 1
a load detecting part provided between a presentation-part side fixing part and a support-part side fixing part and detecting, as a load, strain due to the pressing operation
Implementation Method 2
an elastic support part that supports the movable part with respect to the base part in a vibratable manner
Implementation Method 3
The movement regulating part regulates movement of the movable part by engaging with an engaged part of the base part via a buffer member when the movable part moves in a direction separating from the base part
Data Source
AI summary
Provided is a load detector, including: a strain generating body that includes a first fixing part fixable to a device, a second fixing part fixable to an actuator, and a strain part provided between the first and second fixing parts, a pressing operation being performed on the device by an operator, the actuator giving vibration to the device; a strain sensor that detects strain generated in the strain part in accordance with the pressing operation; and a regulating part provided at the first fixing part, wherein when the device moves in a first direction separating from the actuator, the regulating part regulates the movement by engaging with an engaged part of the actuator.