Loom Frame Vibration Resistance via Horizontal Fixation

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Solution Overview

Problem

Existing loom frame structures suffer from vibration issues due to beating and beam vibrations, leading to deteriorated fabric quality and increased manufacturing costs due to the need for multiple frame configurations for different warp beam diameters.

Innovation Solution

The frame structure incorporates height position setting members fixed to the side surface of the side frame, with fixation bolts parallel to the weaving width direction, and integrates beam supports with the support structure, enhancing vibration resistance by directly receiving vibratory forces.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the side frame is fixed to the height position setting member using fixation bolts with axial direction in the upper and lower direction, then the manufacturing cost is reduced by using a single frame configuration, but the vibration resistance in the horizontal direction deteriorates

Engineering Contradiction:

Improvemanufacturing costVSAvoidvibration resistance

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The patent changes the orientation of the fixation bolts from the vertical dimension (upper and lower direction) to the horizontal dimension (weaving width direction). This dimensional change allows the bolts to effectively resist horizontal vibrations caused by the beating operation, while still using a single frame configuration for different warp beam diameters.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

Instead of fixing the side frame from above (vertical fixation), the patent inverts the approach by fixing the side frame from the side (horizontal fixation). This inversion of the fixation direction enables the frame to resist horizontal vibrations more effectively while maintaining manufacturing simplicity.

Inventive Principle:

Principle #13The other way round (Inversion)

2Productivity

If the loom operates at higher speed to increase productivity, then the production output increases, but the vibration of the side frame becomes more violent leading to deteriorated fabric quality

Engineering Contradiction:

Improveloom operation speedVSAvoidfabric quality

Core Design Contradiction:

ProductivityVSManufacturing precision

Solution Approach 1:

The patent converts the harmful effect of increased vibration at higher speeds into a beneficial outcome by redesigning the fixation system. The horizontal fixation bolts and support structure are specifically designed to harness and manage the increased vibratory forces, transforming them from a quality-deteriorating factor into a manageable operational parameter that allows higher speeds without compromising fabric quality.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

3Adaptability or versatility

If multiple types of side frames with different configurations are manufactured to correspond to different warp beam diameters, then the adaptability to various warp beams is improved, but the manufacturing cost increases

Engineering Contradiction:

Improvecompatibility with different warp beamsVSAvoidmanufacturing cost

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent applies universality by designing a single side frame configuration that can accommodate different warp beam diameters. The height position setting members allow the same frame structure to be adapted to various beam sizes, eliminating the need for multiple frame types and reducing manufacturing costs while maintaining versatility.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The improved frame structure effectively reduces fabric quality deterioration and manufacturing costs by increasing vibration resistance against both beating and beam vibrations, maintaining consistent frame configurations for various warp beam diameters.

Implementation Method 1

the fixing of the position of the side frame to the height position setting member in a horizontal direction is maintained by the weight of the side frame and the frictional force between the height position setting member (upper surface) and the side frame (lower surface) according to the fastening force by the fixation bolts

Methodology Applied

Scientific EffectFriction: Friction

Data Source

PatentEP3901340B1Frame structure of loom

Publication Date: 2025.06.25 TSUDAKOMA KOGYO KK

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AI summary

A frame structure of a loom includes a frame (1) formed by connecting a pair of side frames (2, 2), to each of which a beam support (7) for supporting a warp beam (6) is fixed, by a plurality of beam materials (3), and one or more pair of height position setting members (11) arranged between a loom installation surface (10) and each of the side frames. Each of the height position setting members is fixed to the installation surface and the corresponding side frame. The pair of height position setting member are provided as a support structure configured such that a fixed position with respect to the corresponding side frame on at least one of a let-off side and a take-up side is an inner surface or an outer surface of the side frame.