Frame of a sewing machine

Abstract

The invention provides a sewing machine frame, which belongs to the technical field of sewing machine accessories, and solves the technical problems of the existing sewing machine frame structure such as inconvenient movement and poor adaptability. The frame consists of two tubular bases, each base is vertically fixed with a column, and the two ends of each base are respectively movably inserted with an upper support tube and a lower support tube, and the lower side of the lower support tube has a lower rack , the upper side of the upper support tube has an upper rack; there is a meshing gear between the upper rack and the lower rack, and the lower transmission shaft is connected to the meshing gear; a vertical lifting column is slidingly arranged on each column, and the lifting column There is an upper transmission shaft that can drive the lifting column to move up and down; the column is also provided with a drive shaft that can drive the upper transmission shaft and the lower transmission shaft to rotate respectively; the outer ends of the upper support tube and the lower support tube are equipped with support foot assembly. The frame in the invention is convenient to move; and the distance between the supporting leg components and the height of the platen can be adjusted, and the adaptability is strong.

Description

technical field [0001] The invention belongs to the technical field of sewing machine accessories, and relates to a sewing machine frame. Background technique [0002] Usually a complete set of sewing machine is mainly composed of sewing machine, table top, frame and other accessories. The frame of sewing machine is an indispensable part in the sewing machine as the carrier of the table top and sewing machine. The frame of the sewing machine is generally supported by the foot cups installed at each of the four corners. At the same time, for the convenience of movement, some frames are composed of two casters and two foot cups, so that the sewing machine can be easily moved only by lifting one side. But above-mentioned two kinds of schemes all have deficiencies: for example when four corners are all supported by foot cup, although the height of foot cup is adjustable, the adaptability to the ground is better, but the coefficient of friction between foot cup and ground is bigg...

AI Technical Summary

Problems solved by technology

But above-mentioned two kinds of schemes all have deficiencies: for example when four corners are all supported by foot cup, although the height of foot cup is adjustable, the adaptability to the ground is better, but the coefficient of friction between foot cup and ground is bigger , and the overall size of the sewing machine is relatively large. In addition, the overall weight of the sewing machine is generally about 80Kg. At this time, if you want to move the sewing machine, you only need to lift it up by multiple people or carry it by machine, which is time-consuming and labor-intensive. The efficiency is low; It is relatively easy to move the sewing machine supported by two foot cups, but the height of the casters cannot be adjusted, so the adaptability of the frame to the ground is very poor, and the line-surface contact between the casters and the ground, contact The small area leads to small frictional force. The above-mentioned shortcomings make it difficult to place the sewing machine with this structure stably, which affects the sewing effect.

[0006] The sewing machine frame in the above patent document is supported by four foot cups, which is inconvenient to move, and the adjustability and versatility are poor, and the height of the platen installed on the frame cannot be adjusted, which affects the convenience and comfort of use

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