Loom Camera Bracket for Vibration-Stable Abnormality Detection

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Solution Overview

Problem

Existing loom abnormality detection devices face challenges with image capturing range shifts due to loom vibrations and inconsistent image capturing ranges across multiple looms, complicating image processing and comparison.

Innovation Solution

A loom abnormality detection device with a bracket that fixes a camera and light source to a fixed member of the loom using a bolt, featuring a restriction portion to prevent rotation and maintain a constant image capturing range, utilizing existing screw holes for attachment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the camera is attached to the side frame using a bolt through the screw hole for an eye bolt, then the device can be installed on existing looms without requiring new fixed members, but the image capturing range shifts due to loom vibration

Engineering Contradiction:

Improvecompatibility with existing loomsVSAvoidimage capturing range stability

Core Design Contradiction:

Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The patent introduces a bracket as an intermediary component between the camera and the side frame. The bracket includes a restriction portion that contacts a fixed member of the loom to prevent rotation and maintain stable image capturing range, while still allowing installation on existing looms through the existing eye bolt screw hole

Inventive Principle:

Principle #24Intermediary (Mediator)

2Productivity

If the camera captures images continuously during loom operation, then abnormality detection can be performed, but the image capturing range shifts due to vibration making processing and comparison difficult

Engineering Contradiction:

Improvecontinuous abnormality detection capabilityVSAvoidimage comparison accuracy

Core Design Contradiction:

ProductivityVSMeasurement precision

Solution Approach 1:

The restriction portion of the bracket is designed to preliminarily prevent rotation and position shifts before vibration occurs during loom operation. By constraining the bracket against a fixed member of the loom, the system pre-counteracts the harmful effects of vibration, ensuring that continuous image capturing maintains a consistent range for accurate processing and comparison

Inventive Principle:

Principle #9Preliminary anti-action

3Adaptability or versatility

If different looms have different image capturing ranges, then each loom can be optimized for its specific needs, but comparison of captured images among multiple looms becomes difficult

Engineering Contradiction:

Improveloom-specific optimizationVSAvoidcross-loom image comparison accuracy

Core Design Contradiction:

Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The bracket design with the restriction portion contacting a fixed member of the loom provides a universal mounting solution that standardizes the camera's position and orientation across different looms. This universal approach ensures consistent image capturing ranges, enabling accurate comparison of images among multiple looms while still allowing the system to be applied to various loom types

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentEP4636146A1Loom with abnormality detection device

Publication Date: 2025.10.22 TOYOTA INDUSTRIES CORP

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AI summary

A loom abnormality detection device (20) includes a camera (21); a detection unit (23) configured to detect an abnormality in a loom (10) or in weaving, based on an image captured by the camera (21); a bracket (24) having a camera fixing portion (41) to which the camera (21) is fixed, and a bolt (25) inserted through a bolt insertion hole (40a) of the bracket (24) and screwed into a screw hole (19) for an eye bolt (B) provided in a side frame (11a, 11b) of the loom (10). The bracket (24) includes a restriction portion (43), the restriction portion (43) being in contact with a fixed member to restrict rotation of the bracket (24), the fixed member being a part of the loom (10) that does not change its position.