Divisible Cable Lead-In Cover for Selective Part Replacement

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Solution Overview

Problem

Existing cable lead-in components in electric devices and liquid application systems require replacement of the entire component when one function fails, leading to unnecessary high replacement costs and operational burdens.

Innovation Solution

A cable lead-in member comprising a first member and a cover member that can be easily detached and replaced, with a divisible cover member and fastening screws, allowing separate maintenance and replacement of individual parts.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a cable lead-in component is designed as an integrated component with multiple functions, then the component can provide comprehensive protection and functionality, but the replacement cost increases when one function fails

Engineering Contradiction:

Improvecomprehensive protection functionVSAvoidreplacement cost

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The cable lead-in component is divided into multiple independent functional modules: a gland member for cable securing, a locknut for additional fixation, and a cable protecting tube for surface protection. Each module can be independently replaced, reducing replacement costs when only one function fails while maintaining comprehensive protection capabilities.

Inventive Principle:

Principle #1Segmentation

2Device complexity

If multiple functions are integrated into one component, then the structure is simplified, but the operational burden increases when maintenance is needed

Engineering Contradiction:

Improvestructural simplicityVSAvoidmaintenance burden

Core Design Contradiction:

Device complexityVSEase of operation

Solution Approach 1:

The component is segmented into independently replaceable modules (gland member, locknut, cable protecting tube) that maintain a simplified overall structure during operation. When maintenance is needed, operators can easily remove and replace only the affected module without handling the entire assembly, reducing maintenance burden while preserving structural simplicity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The cable protecting tube is extracted as a separate replaceable component from the integrated assembly. This allows operators to easily remove and replace only the cable protecting tube when it is damaged, without needing to disassemble or replace the gland member or locknut, thereby reducing operational burden during maintenance.

Inventive Principle:

Principle #2Taking out (Extraction)

3Ease of manufacture

If the cover member is made as a single piece, then the manufacturing process is simpler, but the accessibility for maintenance is reduced

Engineering Contradiction:

Improvemanufacturing simplicityVSAvoidaccessibility for maintenance

Core Design Contradiction:

Ease of manufactureVSEase of operation

Solution Approach 1:

The cover member is divided into a first cover and a second cover that can be separately removed. This segmentation maintains manufacturing simplicity through standardized joining mechanisms while significantly improving accessibility for maintenance, allowing operators to easily access and replace internal components such as the cable protecting tube without removing the entire cover assembly.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS12512651B2Cable lead-in member, electric device control system, and liquid application system

Publication Date: 2025.12.30 RICOH CO LTD

AI summary

A cable lead-in member includes a first member and a cover member. The first member is to be attached to a lead-in port through which a cable is to be led inside. The cover member protects the first member. The cover member is divisible in a direction crossing a direction in which the cable is to be led inside.