Operation Device Damping Bouncing Without Impairing Feel

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Solution Overview

Problem

Operation devices, such as cross-faders in DJ devices, face issues with slide operation elements bouncing back when released, leading to unintentional operations, and existing shock-absorbing materials compromise the operational feel by absorbing the contact shock.

Innovation Solution

An operation device with a second base portion, a first base portion, and dampers connecting them, allowing oscillation, combined with a stopper and movement restrictor to absorb shocks and maintain operational feel by using a low-resilient material for the stopper and elastically deformable dampers to reduce bouncing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a shock-absorbent material is provided at the end of the slit to absorb shock, then bouncing back is inhibited, but operational feeling is impaired

Engineering Contradiction:

Improvebouncing inhibitionVSAvoidoperational feeling

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The shock absorption function is segmented from the slit end structure and assigned to a separate damper component. The damper is connected to the movable portion through a damper connection portion, allowing shock absorption to occur independently from the sliding interface, thus preventing bouncing while preserving the operational feeling at the slit ends.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The damper acts as an intermediary component between the movable portion and the fixed base. It mediates the shock forces generated during operation by providing a dedicated shock absorption path, preventing these forces from affecting the operational interface at the slit ends while still providing overall stability.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Speed

If the slide operation element is made quickly slidable for DJ use, then operational speed is improved, but bouncing back upon release increases

Engineering Contradiction:

Improvesliding speedVSAvoidbouncing control

Core Design Contradiction:

SpeedVSReliability

Solution Approach 1:

The damper provides beforehand cushioning by being pre-connected to the movable portion through the damper connection portion. This cushioning mechanism is in place before operation begins, ready to absorb shocks and prevent bouncing back when the user releases the slide operation element, without interfering with the quick sliding action.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

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 solution effectively inhibits bouncing without impairing the operational feel, reducing noise and allowing precise control by independently managing shock absorption with dampers, enabling a comfortable DJ performance.

Implementation Method 1

a damper connecting the first base portion to the second base portion, in which the second base portion is capable of oscillating

Methodology Applied

Scientific EffectShock absorption: Damping

Implementation Method 2

elastically deformable dampers to reduce bouncing

Methodology Applied

Scientific EffectElastic deformation: Elasticity

Data Source

PatentEP3327539B1Operation device

Publication Date: 2020.12.23 ALPHATHETA CORP

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AI summary

An operation device (1) includes: a second base portion (3) including a movable portion (4); a first base portion (2) holding the second base portion (3); and a damper (5) connecting the first base portion (2) to the second base portion (3), in which the second base portion (3) is capable of oscillating.