JPS5949795A - Measuring device of condition of sewing machine yarn - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention The present invention provides a protruding rod at the other end of the gauge member, inserts a coil spring into the protruding rod, inserts it into the cylindrical body, and connects the end of the protruding rod to the end of the cylindrical body. This invention relates to a sewing machine thread tension measuring device, which projects from a hole provided in a sewing machine, and has a sewing thread attachment part provided at an end of the projecting rod.

In order to maintain the sewing machine's best sewing tension, the tension of the upper thread and lower thread must be accurately balanced. Recently, chemical fiber fabrics and threads have been used extensively, and it is thought that as chemistry advances, more and more oil-like materials will be developed in the future. It is fine to sew using only certain fabrics and threads, but as the seasons and the variety of embroidery items change, the materials change, and the thickness of the threads used also changes, so it is important for the cotton maker to choose the right material each time. It requires a high degree of skill and experience to maintain the best sewing tension.

The object of the present invention is 11'1.It is not only possible to make the best adjustments, but also to record the measured values of various types of sewn products each time, so that adjustments can be made promptly. Even people with limited experience can sew in the best possible condition, better than those who are experts, and it is especially useful for ordinary people who use home sewing machines, students at dressmaking schools, and people who sew leather products as a hobby. In addition, it has the advantage of being able to prevent problems such as eyelids and thread breakage due to poor thread tension, and it not only leads to early detection of defective parts of the sewing machine, but also has the advantage of being able to prevent many sewing machines from being damaged. For sewing factories and specialized sewing machine dealers, it is important for apprentices and others to use sewing machines because they can numerically and accurately determine the best sewing tension using years of experience and intuition. It is convenient for training, and although there are no sewing machine dealers who can perfectly measure the sewing tension of nearly 3,000 types of sewing machines, it is important to measure the best sewing tension for each material and thread in advance. To provide an extremely effective and appropriate sewing machine thread tension measuring instrument that can be made possible by preparing a value graph in advance, is extremely easy to handle, and can be quickly used even by beginners.

Further, to explain this with reference to an example of the embodiment shown in the drawings, one part of the scale is provided, a protruding rod 3 is provided at the other end of the gauge member 2, and a coil spring 4 is fitted to the protruding rod 3 to form a cylindrical body 5. The end of the protruding rod 3 is loosely fitted and protrudes from the hole 6 provided at the end of the cylindrical body 5, and the screw groove 7 provided at the end of the protruding rod 3 The thread fastening portion 8 is screwed to the thread fastening portion 8. It is convenient if the suture attachment part 8 is formed by having a head 10 provided with a cut groove 9 which serves as a conduction for the suture thread and a groove for turning the screw, so that it can be screwed in and unscrewed. In the diagram, reference numeral 11 indicates auxiliary conduction of the sewing thread, 12 indicates a screw hole provided in the fastening portion 8, 13 indicates a screw groove provided in the screw hole, and 14 indicates a screw groove 13 provided at the head. 16 is the number provided on the scale 1, 17 is a mark such as a special scale provided at the part with the highest degree of compatibility, 18 is the desired sewing machine,
19. 20 is a thread hook, and 21 is a thread take-up.

Since the present invention is constructed in a diagonal manner, the head 10 is loosened as shown by the chain lines in FIGS. 2 and 3, and the upper thread 22 is
The tension of the sewing thread is easily displayed on the dirge part by pinching the end of the head 10 by rotating the knob 10' of the head 10 in the tightening direction, and pulling it by holding the cylindrical body 5. 'j You can simply adjust the tension of the thread. Next, measure the withdrawal force of the bobbin thread 22' in the same manner and adjust the bobbin thread 22' to the optimum tension.

The present invention comprises a household sewing machine having the above-mentioned configuration and operation.
Occupational sewing machines, craft sewing machines, etc. each have different tension depending on the sewing machine, and the optimum tension is determined by the type of sewing thread and the bottom of the sewn product. The tension adjustment of the sewing machine thread, which requires adjusting the tension of the upper thread and lower thread to different tensions, can be easily measured and accurately adjusted by both amateurs and professionals, preventing thread breakage, thread skipping, etc. In addition to preventing this and allowing correct sewing, for example, if you thread the thread in the wrong order, the measuring device may slightly beep.
Its effects and benefits are great, as it vibrates with a beeping sound, making it easy to notice.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is a perspective view, FIG. 2 is a partially explanatory view, and FIG. 3 is a partially cross-sectional explanatory view.
FIG. 4 is an explanatory diagram of the state of use. 1... Scale, 2... Gauge member, 3... Projecting rod,
4... Coil spring, 5... Cylindrical body, 6...
Hole, 7... Screw groove, 8... Fastening part.

Claims (1)

[Claims] A protruding rod is provided at the other end of the gauge member, the protruding rod is inserted into the cylindrical body with a coil spring interposed therebetween, and the end of the protruding rod is made to protrude from a hole provided at the end of the cylindrical body, A sewing machine thread tension measuring device characterized in that a sewing machine sewing thread attachment part is provided at the end of the protruding rod.