Handle Device Load Distribution via Swing Member Pivot

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Solution Overview

Problem

Existing handle devices for automobile storage cases concentrate tensile loads on the edge of the base portion and support shaft, leading to inefficient load distribution when the handle is lifted.

Innovation Solution

A handle device with a swing member that abuts against the handle member and base member, distributing the load through rotational pivot portions, allowing the base-side abutting portion to bear the load as the handle-side abutting portion lifts, thereby enhancing load distribution.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the handle member is lifted up by the edge of the base portion and support shaft, then the handle device can be operated, but the load is concentrated on these components leading to insufficient load distribution

Engineering Contradiction:

Improveload distributionVSAvoidload-bearing capacity

Core Design Contradiction:

ReliabilityVSStrength

Solution Approach 1:

The swing member is divided into multiple functional segments: a handle-side abutting portion that contacts the handle member, a base-side abutting portion that contacts the base member, and a rotational pivot portion that connects to the base member. This segmentation allows the load to be distributed across multiple contact points and structural elements rather than concentrating stress on a single component.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The swing member acts as an intermediary component between the handle member and the base member. When the handle member is lifted, the swing member mediates the load transfer by rotating about the pivot portion, allowing the base-side abutting portion to bear load against the base member while the handle-side abutting portion contacts the handle member, thus distributing the tensile load across multiple structural elements.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If more components are added to distribute the load, then the load distribution improves, but the device complexity increases

Engineering Contradiction:

Improveload distributionVSAvoidstructural complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The swing member combines multiple functions into a single integrated component: it provides load distribution through its abutting portions, enables rotational movement through the pivot portion, and connects the handle member to the base member. This merging approach achieves improved load distribution without proportionally increasing device complexity, as one component performs multiple mechanical functions.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The swing member serves multiple functions simultaneously: it acts as a load-bearing element, a rotational joint, and a structural connector. The handle-side abutting portion, base-side abutting portion, and rotational pivot portion work together to provide both load distribution and operational movement, demonstrating multi-functionality that reduces the need for separate specialized components.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS11306520B2Handle device

Publication Date: 2022.04.19 PIOLAX INC

AI summary

There is provided a handle device. The handle device includes a base member, a handle member, and a swing member. The handle member has a grasp portion. The swing member includes a handle-side abutting portion, a base-side abutting portion, and a rotational pivot portion. As the handle-side abutting portion comes away from a bottom portion of the base member, the base-side abutting portion comes close to the bottom portion of the base member.