Frame of a sewing machine

A sewing machine and frame technology, applied in the field of sewing machine frames, can solve the problems of poor adjustability and versatility, affect the sewing effect, and cannot adjust the height, so as to improve adaptability and versatility, ensure stability and reliability, Effect of reducing shaking and vibration

CN111534944BActive Publication Date: 2021-08-06JACK SEWING MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2021-08-06

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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.
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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...

Examples

Embodiment Construction

[0039] Such as Figure 1 to Figure 7 As shown, the frame of the sewing machine includes two tubular bases 1 vertically spaced apart, each base 1 is vertically fixed with a column 2, and the two ends of each base 1 are respectively movably inserted with an upper support tube 3 and Lower support tube 4, the lower side of the lower support tube 4 has a lower rack 4a extending towards the inside of the base 1, and the upper side of the upper support tube 3 has an upper rack 3a extending towards the inside of the base 1; the upper rack 3a and the lower teeth The bar 4a is arranged oppositely and is provided with the meshing gear 5 that can simultaneously drive the upper rack 3a and the lower rack 4a to move longitudinally between the two, and the lower transmission shaft 6 is connected on the meshing gear 5; The upper end of the lifting pillar 7 is provided with a supporting plate 8, and the lower part of the lifting pillar 7 is provided with an upper transmission shaft 9 that can ...