Modular Sewing Machine Table With Profile-Bar Extension Mounting
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Solution Overview
Problem
Existing sewing machine tables are inflexible and require replacement when switching between sewing small and large pieces, lacking the ability to easily adjust to varying project sizes without compromising structural integrity.
Innovation Solution
A sewing machine table design featuring a tabletop with notches for profile bars, allowing for the easy addition of extension elements by inserting rails into these notches, which provides a durable clamping connection and adjustable surface size without compromising structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional bolt connection is used to attach extension elements to the tabletop, then the connection is simple to implement, but the durability and structural integrity are insufficient
Solution Approach 1:
The patent replaces the traditional bolt connection system with a clamping connection system using a C-shaped clamp that engages with the profile bar in the notch. This substitution provides superior durability and structural integrity while maintaining implementation simplicity, as the clamping mechanism naturally resists detachment forces better than bolts.
Solution Approach 2:
The C-shaped clamp utilizes its curved geometry to envelop and securely hold the profile bar, creating a mechanically superior connection. The curved shape allows the clamp to apply distributed clamping force around the profile bar, enhancing connection reliability compared to linear bolt connections.
2Adaptability or versatility
If the table is designed for a fixed size, then the construction is simple, but it cannot adapt to different sewing project sizes
Solution Approach 1:
The tabletop is divided into a base table and separate extension elements that can be independently added or removed. The base table includes notches with profile bars that serve as attachment points for these modular extensions, allowing the table to be reconfigured for different project sizes without redesigning the entire structure.
Solution Approach 2:
The table structure transitions from a static fixed-size design to a dynamic reconfigurable system. Extension elements can be easily attached and detached using the clamping connection mechanism, allowing the table to adapt its working surface area according to the specific sewing project requirements.
3Adaptability or versatility
If extension elements are added to increase table size, then the adaptability improves, but the structural integrity and durability may be compromised
Solution Approach 1:
The C-shaped clamp's curved geometry provides superior mechanical engagement with the profile bar, creating a strong connection that maintains structural integrity. The curved shape distributes forces more effectively and resists detachment better than linear connection methods, ensuring that extension elements remain securely attached during use.
Solution Approach 2:
The connection system combines multiple materials and structural elements - the wooden tabletop, metal profile bars, and C-shaped clamps - to create a composite structure where each component contributes to the overall strength and durability of the extension connection.
Data Source
Figure 1~2
Figure 3
AI summary
The object of the invention is a table for sewing machines, both for basic machines and for specialised machines. The sewing machine table consists of a tabletop in the form of a plate with an aperture for the sewing machine, where the tabletop is placed on a frame, characterised in that the tabletop (1) has, in its side walls, notches into which profile bars, preferably channel bars (8), are pressed. The height (H) of the profile bar (8) is lower than or equal to half the thickness (G) of the tabletop (1). The pressed profile bar (8) is arranged symmetrically in relation to the thickness (G) of the tabletop (1). The pressed profile bar (8) is additionally fixed with screws (9) to the tabletop (1). The tabletop (1) has a thickness (G) of at least 39mm. The heads of the rails (13) attached to the sides of the additional elements (10,11,12) are seated in the pressed profile bars (8).