Sewing Machine Base With Pivoted Wings For Closed Garment Sewing
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Solution Overview
Problem
Conventional sewing machines face difficulties in comfortably sewing closed fabric portions like pockets, trousers, and sleeves due to the limited size of the base plate, which restricts the movement and flexibility of the fabric, making the process uncomfortable and inefficient.
Innovation Solution
A base for sewing machines featuring a polygon-shaped main plate with pivoted wings that can rotate to adjust the bearing surface, allowing for a variable extension to accommodate larger fabric areas and facilitate easier handling of closed garments, with independent actuation mechanisms for each wing to optimize the sewing surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the base plate size is increased to accommodate larger fabric areas, then the sewing flexibility and comfort are improved, but the device complexity and space requirements increase
Solution Approach 1:
The base plate is divided into a fixed main plate and multiple movable wings that can be independently positioned. This segmentation allows the sewing surface to be extended only when needed for specific sewing tasks, rather than requiring a permanently large base plate, thus maintaining ease of operation while avoiding unnecessary device complexity.
Solution Approach 2:
The wings are designed to be movable rather than fixed, allowing them to be positioned and locked at different angles. This dynamic configuration enables the base to adapt its sewing surface area according to the specific sewing task, providing sewing flexibility without permanently increasing device complexity.
2Area of moving object
If the base plate size is increased to provide extended sewing surface, then the fabric handling capability is improved, but the machine footprint and space occupation increase
Solution Approach 1:
The sewing surface is segmented into a fixed main plate area and extendable wing areas. The wings can be deployed to increase the total sewable fabric area when needed, but remain compact when folded, thus providing extended sewing capability without permanently occupying additional space.
Solution Approach 2:
The wings can be positioned at various angles relative to the main plate, utilizing angular/rotational dimension to expand the effective sewing surface area. This allows the base to provide extended fabric handling area by utilizing three-dimensional space rather than simply increasing the two-dimensional footprint.
3Adaptability or versatility
If the wings are made movable to adjust sewing surface, then the adaptability for different sewing tasks is improved, but the device complexity and control mechanisms increase
Solution Approach 1:
The wings are designed with movable joints and actuation mechanisms that allow them to be positioned at different angles and locked in place. This dynamic capability enables adaptation to different sewing tasks while using relatively simple mechanical components rather than complex control systems.
Solution Approach 2:
The wing actuation system is designed to be manually operable by the operator without requiring complex automated control mechanisms. The operator can directly position and lock the wings as needed, making the system adaptable to different tasks while minimizing device complexity through self-service operation.
Data Source
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AI summary
The present invention refers to a base (10) for sewing machines comprising a support structure (14) capable of supporting the fabric to be sewn and comprising a polygon-shaped main plate (16) on which the fabric is placed, a first wing (24) adjacent to the main plate (16) and pivoted in a first side of the main plate (16), and first moving means (30, 38, 40) of the first wing (24) so that the first wing (24) is rotatable about an axis which is coplanar to the main plate (16), and the first wing (24) may be disposed in a first position which is coplanar to the main plate (16) providing continuity of support to the main plate (16), or in a second position which is orthogonal to the main plate (16).