JPH0262277B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is applicable to embroidery sewing machines and other general sewing machines in which a plurality of threads are arranged on the upper part of the sewing machine body so that the threads can be smoothly threaded without tangling the threads. The present invention relates to a sewing machine thread storage device that allows thread to be easily changed as well as to be fed out.

[Conventional technology]

Even in general sewing machines, it is necessary to change the thread depending on the type of cloth to be sewn, the color of the cloth, etc. In this case, a thread stand is provided on the upper part of the sewing machine body, and the bobbin containing the necessary colored threads is replaced each time and used. Therefore, it is time-consuming to change the thread, and it is also necessary to store the bobbin when not in use.

In addition, in embroidery machines, which use a much larger number of threads than sewing machines, multiple thread stands are installed on the top of the sewing machine, and a bobbin of the desired color thread is inserted into the thread stand and held up, allowing the necessary thread to be used. I try to unwind it from the bobbin of this thread stand. However, since an industrial embroidery sewing machine has 10 to 20 sewing machine heads arranged in one main body, there is a limit to the number of bobbins that can be arranged above each head. Therefore, it is not possible to erect more bobbins than the number of thread stands provided in the head of the sewing machine at one time, and depending on the number of colored threads required, it may be time consuming to replace the bobbins. Also, multiple threads may become intertwined with each other.

In order to eliminate this drawback, the applicant of the present application
The invention was disclosed in Japanese Patent No. 57-187177, No. 58-14873, and No. 58-35371.

[Problem to be solved by the invention]

These sewing machine thread storage devices support the bobbin horizontally, stack them vertically in multiple stages, and arrange multiple threads horizontally according to the width of the sewing machine head. , it became possible to use a much larger number of bobbins. However, when using such a bobbin, the thread to be paid out may become entangled at the bottom of the bobbin, imparting unnecessary tension to the thread or causing thread breakage.

It is an object of the present invention to further solve this problem, and to make it possible to smoothly unwind the yarn without entangling the yarn, and to easily change the yarn.

[Means to solve the problem]

In order to achieve the above object, the present invention has a box-shaped outer case that is fixed at a predetermined position of a sewing machine and has at least an opening on the front side, and a spool that stores a bobbin and is fitted to the outer case so that it can be attached and detached almost horizontally. The main body has a cylindrical spool case, which is formed in a fitting manner by the main body and the cap, and a spool support rod for supporting the spool on the bottom surface of the main body, and an adjustment for tilting the spool forward. A thread hooking tool having a protruding rod, the adjusting rod being adjustable with respect to the main body, and a cap made of a transparent material to apply the necessary tension to the thread being let out from the bobbin on the outer tip surface. The cap is further characterized in that a thread guide groove is provided in the longitudinal direction of the peripheral surface of the cap for guiding the thread end from the bobbin case to the outside.

〔Example〕

Next, the sewing thread storage device of the present invention will be explained based on the embodiment shown in FIGS. 1 to 3.

In the figure, reference numeral 1 denotes a box-shaped outer case that is open on the entire surface and is designed to store and support a bobbin spool B containing the required thread in a tilted horizontal or near-horizontal state. A part of the bobbin can be stored inside by laying down the bobbin, and the outer case 1 can be stably placed on a thread support frame or the like (not shown) of a sewing machine. Engagement pieces 11 and engagement grooves 12 are formed on the outer peripheral side wall of the outer case 1 for joining two or more outer cases to each other when they are integrated vertically or horizontally, or even vertically and horizontally.

The bobbin case 9, which is removably inserted into the outer case, is structured so that a main body 91 and a cap 92 fit together, and the bobbin support rod 3, which is provided protruding from the inner surface of the main body 91, is thinner than the inner diameter of the thread tube. Therefore, even if a spool is inserted into the rod, the spool cannot be firmly supported. For this purpose, a spool fixture 5 made of an elastic material is fitted to the outer periphery of the spool support rod. The spool fixing device 5 is formed in a ring shape using sponge or other material, and is slid along the spool support rod according to the diameter and size of the thread pipe, and is fitted and supported at a predetermined position. It is used to tighten and support the spool.

Further, an adjustment rod 6 is vertically adjustable and protrudes from the inner surface of the main body 91 above the bobbin support rod 3, and can be fixed at any predetermined position. Therefore, when the bobbin B is fitted to the bobbin support rod via the bobbin support, the adjustment rod 6 is also inserted into the yarn tube. The adjustment rod 6 is brought into contact with the upper part of the inner circumferential surface of the yarn tube, and is lifted to support the yarn tube so that the rear end of the yarn tube is higher than the front end, that is, the bobbin is tilted slightly forward from horizontal. Thereby, when the thread is let out, the thread is reliably let out without getting caught in the step part of the bobbin winder.

In place of the adjustment rod 6 shown in the figure, a highly elastic body made of rolled cotton, synthetic cotton, feathers, animal hair, etc. is housed at the bottom of the main body, and this supports the lower bottom of the bobbin winder and allows the thread to be unwound from the bobbin bobbin. It is also possible to insert the thread between the bottom of the bobbin winder and the inner bottom of the main body 91 to sandwich the thread and prevent the thread from being unreeled smoothly.

The outer case 1 has a box shape with at least the front side open, and there are two inside thereof as shown in FIG.
The thread winding case 9 is inserted into the outer case 1 so that four to four or more thread winding cases can be inserted and supported.

As shown in detail in FIGS. 1 and 2, the bobbin case 9 consists of a short tubular body 91 with a bottom and a truncated conical cap 92 made of a transparent material that fits into the body 91. A spool support rod 3 for supporting the spool B is protruded from the center of the inner bottom surface, and a spool fixture 5 made of an elastic body is fixed to the spool support rod 3, thereby supporting the bobbin. In addition, the bottom surface of the main body is provided with a long hole 91h that can be adjusted vertically, that is, in a straight line (diameter line) connecting the center of the bottom surface 91a of the main body and the outer peripheral surface, and an adjustment rod that can be fixed at any position. 6, insert the tip of this adjustment rod 6 into the end of the bobbin so that it touches the upper part of the inner peripheral surface of the bobbin, and lift it so that the rear end of the bobbin is higher than the tip, that is, the bobbin is moved. Support it by leaning slightly forward from horizontal. With this, when unwinding the thread,
To ensure that a thread is let out without being caught in the step part of a bobbin winder.

The main body 91 is in the shape of a circular pipe with a bottom, and is supported simply by fitting into the outer case 1.

A cap 92 that fits into the main body 91 is transparent so that the colored yarn of the bobbin B stored inside can be easily identified from the outside, and a cylindrical portion 92a that fits into the main body 91
and a truncated conical part 92b are formed continuously, and a groove 92c is formed in the longitudinal direction thereof, and a groove for feeding out the thread is formed continuous with the groove 92c on the top surface 92d of the cap 92. A thread hook 7 is provided protruding from the outer surface of the top surface 92d. The thread hanging tool 7 has a rectangular gutter shape with an open top and front surface, into which an elastic material 76 such as felt or sponge is inserted to pinch the thread being let out and provide the required tension.

Therefore, in this embodiment, only a plurality of outer cases 1 are fixed at predetermined positions of the sewing machine, and a desired colored thread is first stored in each of a plurality of thread winding cases 9. This storage is the same as in the first embodiment; the bobbin B is fitted onto the bobbin support rod 3, and the bobbin bobbin B is given a required inclination angle using the adjusting rod 6.

Then, a cap 92 is attached to the main body 91, and at this time, the thread end is guided out of the cap through the groove 92c and held by the thread hook 7. The spool case is stored in the spool case, and the spool case containing colored threads according to the embroidery pattern or the like is used by fitting or replacing the spool case with the outer case. In this embodiment, each colored thread is stored or replaced in each thread winding case, so it is easy to store a large number of colored threads, and it is also easy to change the threads to the outer case in a short time. It has the advantage of being protected. It is also possible to use an elastic body housed in the main body of the thread winding case instead of the adjustment rod.

〔Effect of the invention〕

Since the present invention is configured as described above, it produces the effects described below.

In the sewing thread storage device according to claim 1, a desired thread is stored in advance in the thread winding case formed by the main body and the cap.
The thread can be easily replaced and removed from the outer case in a short time, and the thread can be stored in each bobbin case without getting dirty.
Additionally, the presence and color of thread can be checked from outside the thread winding case. Further, the thread can be easily led out of the thread winding case.

In the sewing thread storage device according to the second aspect of the present invention, since an elastic body such as cotton is stored in the thread winding case body, the thread can be smoothly fed out.

[Brief explanation of the drawing]

The drawings show an embodiment of the sewing thread storage device of the present invention, in which FIG. 1 is an exploded perspective view, FIG. 2 is a cross-sectional view, and FIG. 3 is a front view. 1 is an outer case, 3 is a spool support rod, 5 is a spool fixture, 6 is an adjustment rod, 7 is a thread hook, 9 is a spool case,
91 is the main body, 92 is the cap.

Claims (1)

[Scope of Claims] 1. A box-shaped outer case with at least an open front that is fixed to a predetermined position of the sewing machine, and a spool is housed therein;
It also consists of a cylindrical spool case that is removably fitted to the outer case in a substantially horizontal position. A spool support rod and an adjustment rod for tilting the spool forward are provided protrudingly, and the adjustment rod is adjustable with respect to the main body,
Furthermore, the cap is made of a transparent material, and is equipped with a thread hook on the outer tip surface that applies the necessary tension to the thread being let out from the bobbin spool. A sewing thread storage container characterized by having a thread guiding groove for guiding the thread to the thread. 2 Inside the bobbin case body, a piece of cotton or cotton is inserted into the bottom of the bobbin to prevent the thread from being caught.
Claim 1 storing an elastic body made of feathers, animal hair, etc.
The mentioned sewing thread storage container.