Side-by-Side Holding Member for Guide-Jig-Free Narrow Insertion

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Solution Overview

Problem

Existing devices require a guide jig for inserting an insertion portion, which cannot be fixed to certain components like a clutch housing when there is no space for fixation.

Innovation Solution

A holding member and injection device that allow the insertion portion to be inserted without a guide jig by using a configuration where the injection portion and imaging unit are held side by side, with the injection portion and imaging unit being press-fitted into respective semi-cylindrical portions, and guided by markings on the holding member.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a guide jig is used to guide the insertion portion, then the insertion direction can be accurately guided, but the device cannot be applied when there is no space for fixing the guide jig

Engineering Contradiction:

Improveguiding functionalityVSAvoidapplicability to narrow spaces

Core Design Contradiction:

Ease of operationVSAdaptability or versatility

Solution Approach 1:

The patent combines the guiding function and the support function into a single integrated structure. The curved surface is formed as part of the support member itself, eliminating the need for a separate guide jig. This merged structure provides both mechanical support and directional guidance for the insertion portion, resolving the contradiction between needing guidance and having limited space.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The support member is designed to perform multiple functions simultaneously: it provides mechanical support, guides the insertion direction through its curved surface, and can be positioned in narrow spaces. This multi-functional design allows the same component to replace both the traditional guide jig and support structure, enhancing adaptability to various space constraints.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Ease of operation

If a separate guide jig is used, then the guiding function is provided, but the device complexity increases

Engineering Contradiction:

Improveinsertion guidanceVSAvoidnumber of components

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The patent merges the guiding function into the support member by forming a curved surface on it. This integration eliminates the need for a separate guide jig, reducing the total number of components while maintaining the insertion guidance functionality. The single integrated structure is simpler than the traditional multi-component approach.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS12435834B2Holding member, injection device, and insertion direction guide method

Publication Date: 2025.10.07 TOYOTA JIDOSHA KK

AI summary

A holding member configured to hold an injection portion and an imaging unit of an insertion portion in a state in which the injection portion and the imaging unit are arranged side by side includes an injection-portion insertion portion configured such that the injection portion is press-fitted into the injection-portion insertion portion and an imaging-unit insertion portion configured such that the imaging unit is press-fitted into the imaging-unit insertion portion. The insertion portion is configured to be inserted toward a corresponding portion in a narrow space while being gripped by an operator. The injection portion has a cylindrical shape and is provided with a fluid substance injection port at a tip end portion. The imaging unit has a cylindrical shape and is configured to capture an image including the tip end portion of the injection portion and its surrounding environment.