Tilt Input Mechanism With Motion Expansion for Clear Detent Clicks

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Solution Overview

Problem

Conventional shifting devices face challenges in providing an adequate clicking sensation due to reduced tilt angles, which affects the user experience and accuracy of operation, especially in downsized designs.

Innovation Solution

The input device incorporates an expansion component that tilts in conjunction with the operation component, increasing the movement of a detected element and a detent pin, along with an energizing component that enhances the movement of the detent pin parallel to the detent surface, ensuring a sufficient clicking sensation even with reduced tilt angles.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If the tilt angle of the operation component is reduced to achieve a compact design, then the device size is reduced, but the clicking sensation and detection accuracy deteriorate

Engineering Contradiction:
Improvedevice sizeVSAvoidclicking sensation
Core Design Contradiction:
Volume of moving objectVSReliability

Solution Approach 1:

The expansion component introduces a second tilting motion that amplifies the movement of the detent pin in the direction parallel to the detent surface. By converting the operation component's tilt into an expanded movement through the expansion component's geometry, the system achieves sufficient clicking sensation and detection accuracy while maintaining a reduced tilt angle and compact device size.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Volume of moving object

If the tilt angle of the operation component is reduced to achieve a compact design, then the device size is reduced, but the detection accuracy deteriorates

Engineering Contradiction:
Improvedevice sizeVSAvoiddetection accuracy
Core Design Contradiction:
Volume of moving objectVSMeasurement precision

Solution Approach 1:

The expansion component's geometric configuration amplifies the detected element's movement in the direction parallel to the detent surface. This mechanical amplification ensures that even with a reduced tilt angle, the detector receives sufficient movement signal for accurate detection, thus maintaining measurement precision in a compact device.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS20240370049A1Input device
Publication Date: 2024.11.07 PANASONIC AUTOMOTIVE SYST CO LTD
  • US20240370049A1 patent drawing
  • US20240370049A1 patent drawing
  • US20240370049A1 patent drawing

AI summary

An input device includes: an operation component that tilts in a first direction in response to a user operation; an expansion component that tilts in the first direction relative to the operation component, in conjunction with tilting of the operation component; a magnet supported by the expansion component; a sensor board that is disposed to face the magnet, and detects a tilting movement made by the operation component; a detent pin supported by the expansion component in a retractable manner; and an energizing component that energizes the detent pin toward a detent surface to press a tip of the detent pin against the detent surface. With respect to a tilt amount of the operation component, the expansion component increases a movement amount of the magnet and a movement amount of the tip of the detent pin in a direction parallel to the detent surface.