JPH0126381Y2 - - Google Patents

Description

[Detailed Description of the Invention] A. Purpose of the Invention A. Field of Industrial Application The present invention is intended to provide a card thread support device that allows sewing thread wound around a card to be attached to a known sewing machine as is.

B. Conventional technology and its problems Conventionally available sewing machines have a structure in which a bobbin wound with thread is loosely fitted onto a spool pin, and the bobbin is sewn up to the needle using a known method. .
For this reason, when performing so-called overlock stitches, stitch stitches, and presser foot sewing, it is time-consuming to rewind the sewing thread wound around the card used for these onto the bobbin and loosely fit it onto the spool pin. That is the reality.

B. Structure of the invention A. Means for solving the problem The present application attempts to solve the above-mentioned problem by having the following structure. That is, in the present invention, the upper portion 2A of the pipe body 2, which is rotatably fitted to a known thread spool pin 3 installed on the sewing machine side, is configured to be flat, and the card thread is placed at the lower front of the pipe body. A support portion 4 for receiving the lower side of the card 5A at 5 is attached.

B. Embodiment 1 of the invention is a card thread support for a sewing machine made of synthetic resin, metal, or the like. Reference numeral 2 denotes a thin pipe body which is rotatably fitted to a known spool pin 3 installed on the sewing machine side, and the upper portion 2A of this pipe body 2 is configured to be flat and thinner toward the tip. There is. In this way, when the pipe body is inserted between the card 5A and the thread 5C as described later, it is possible to smoothly insert the pipe body between the card 5A and the thread 5C. Reference numeral 4 denotes a card support portion attached to the lower front surface of the pipe body 2. Therefore, this support portion 4 has front and rear surfaces 4A and 4B formed by bending a steel plate into a U-shaped side surface. and,
The rear surface 4B is fixed to the pipe body 2 using adhesive, solder, or the like. In this case, if a front ⌒-shaped notch 4C is provided in this card support portion 4, a substantially U-shaped protrusion 5B formed on the lower side of the card 5A in the card thread 5 will be inserted into this notch 4.
C to ensure support of the card. In other words, because this notch 4C is formed, no matter what shape the card is,
It can be matched to the bottom curve of the card.
In addition, regarding the manufacture of this card support part 4, for example, a plate body 4D cut into a donut shape is aligned with the center line 4.
When folded in half from E, the front and rear surfaces 4A,
A support portion having 4B and notches 4C can be easily obtained. 5C is a thread wound around the card 5A. The above description has been made with reference to the case where the material is made of metal or the like, but if the card support part 6 is made of synthetic resin, the bottom 6A may be shaped like a boat as shown in FIGS. 10 to 12. It is easy to manufacture and can exhibit the same effects as the card support section 4 described above.

c Regarding operation I will explain it along with the effects.

C. Effect of the invention Since the main proposal is structured as described above,
For example, when stitching is desired, Fig. 4,
The upper part 2A of the pipe body 2 as shown in FIGS. 5 and 6
Insert between card 5A and thread 5C, and
The lower side of A is fitted into the support section 4 from above.
Thereafter, the pipe body 2 is fitted onto the spool pin 3 from above. In this case, since the pipe body 2 is configured to be rotatable with respect to the thread spool pin 3, the card rotates as necessary. As described above, according to the present invention, since the carded yarn can be used as is, the work can be carried out quickly without the need for rewinding it to the hobbin as in the conventional method.

In addition, since the structure is relatively simple, there are fewer failures, and it is a useful device that has the secondary effects of being suitable for inexpensive mass production.

[Brief explanation of drawings]

Figure 1 is a front view, Figure 2 is a right side view, Figure 3 is a sectional view taken along line A-A, Figure 4 is a front view with the card attached, Figure 5 is a rear view of the same as above, Figure 6 is a The figure is a side view, Figure 7 is a plan view explaining the manufacturing method of the support part, Figure 8 is a front view of the support part, Figure 9 is a sectional view taken along the line B-B, and Figure 10 is a front view of another embodiment. 11 is a rear view, and FIG. 12 is a right side view. 1... Card thread support for sewing machine, 2... Pipe body, 4... Support part.

Claims (1)

[Scope of utility model registration request] The upper part 2A of the pipe body 2, which is rotatably fitted to the thread spool pin 3 installed on the sewing machine side, is configured to be flat, and the lower side of the card 5A of the card thread 5 is formed on the lower front side of the pipe body 2. A card thread support for a sewing machine, characterized in that a support part 4 for receiving the thread is attached.